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 | |
6c2e7392 PS |
113 | /* Each partial symbol table entry contains a pointer to private data |
114 | for the read_symtab() function to use when expanding a partial | |
115 | symbol table entry to a full symbol table entry. | |
4a35d6e9 | 116 | |
6c2e7392 PS |
117 | For mipsread this structure contains the index of the FDR that this |
118 | psymtab represents and a pointer to the BFD that the psymtab was | |
119 | created from. */ | |
4a35d6e9 | 120 | |
d4ea2aba PB |
121 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) |
122 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
6c2e7392 | 123 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) |
4a35d6e9 | 124 | |
5f7b2142 ILT |
125 | struct symloc |
126 | { | |
4a35d6e9 | 127 | int fdr_idx; |
6c2e7392 PS |
128 | bfd *cur_bfd; |
129 | EXTR *extern_tab; /* Pointer to external symbols for this file. */ | |
130 | int extern_count; /* Size of extern_tab. */ | |
131 | struct mips_pending **pending_list; | |
4a35d6e9 FF |
132 | }; |
133 | ||
bd5635a1 RP |
134 | /* Things we import explicitly from other modules */ |
135 | ||
5f7b2142 | 136 | extern int info_verbose; |
bd5635a1 | 137 | |
3eaebb75 | 138 | /* Various complaints about symbol reading that don't abort the process */ |
817bc7b8 JG |
139 | |
140 | struct complaint bad_file_number_complaint = | |
5f7b2142 | 141 | {"bad file number %d", 0, 0}; |
021959e2 | 142 | |
817bc7b8 | 143 | struct complaint index_complaint = |
5f7b2142 | 144 | {"bad aux index at symbol %s", 0, 0}; |
817bc7b8 JG |
145 | |
146 | struct complaint aux_index_complaint = | |
5f7b2142 | 147 | {"bad proc end in aux found from symbol %s", 0, 0}; |
817bc7b8 | 148 | |
6edd74ae | 149 | struct complaint block_index_complaint = |
5f7b2142 | 150 | {"bad aux index at block symbol %s", 0, 0}; |
6edd74ae | 151 | |
817bc7b8 | 152 | struct complaint unknown_ext_complaint = |
5f7b2142 | 153 | {"unknown external symbol %s", 0, 0}; |
bd5635a1 | 154 | |
817bc7b8 | 155 | struct complaint unknown_sym_complaint = |
5f7b2142 | 156 | {"unknown local symbol %s", 0, 0}; |
101f259c | 157 | |
817bc7b8 | 158 | struct complaint unknown_st_complaint = |
5f7b2142 | 159 | {"with type %d", 0, 0}; |
101f259c | 160 | |
817bc7b8 | 161 | struct complaint block_overflow_complaint = |
5f7b2142 | 162 | {"block containing %s overfilled", 0, 0}; |
3eaebb75 | 163 | |
817bc7b8 | 164 | struct complaint basic_type_complaint = |
5f7b2142 | 165 | {"cannot map MIPS basic type 0x%x", 0, 0}; |
3eaebb75 | 166 | |
817bc7b8 | 167 | struct complaint unknown_type_qual_complaint = |
5f7b2142 | 168 | {"unknown type qualifier 0x%x", 0, 0}; |
3eaebb75 | 169 | |
817bc7b8 | 170 | struct complaint array_bitsize_complaint = |
5f7b2142 | 171 | {"size of array target type not known, assuming %d bits", 0, 0}; |
3eaebb75 | 172 | |
817bc7b8 | 173 | struct complaint bad_tag_guess_complaint = |
5f7b2142 | 174 | {"guessed tag type of %s incorrectly", 0, 0}; |
817bc7b8 JG |
175 | |
176 | struct complaint block_member_complaint = | |
5f7b2142 | 177 | {"declaration block contains unhandled symbol type %d", 0, 0}; |
817bc7b8 JG |
178 | |
179 | struct complaint stEnd_complaint = | |
5f7b2142 | 180 | {"stEnd with storage class %d not handled", 0, 0}; |
817bc7b8 JG |
181 | |
182 | struct complaint unknown_mips_symtype_complaint = | |
5f7b2142 | 183 | {"unknown symbol type 0x%x", 0, 0}; |
817bc7b8 JG |
184 | |
185 | struct complaint stab_unknown_complaint = | |
5f7b2142 | 186 | {"unknown stabs symbol %s", 0, 0}; |
817bc7b8 JG |
187 | |
188 | struct complaint pdr_for_nonsymbol_complaint = | |
5f7b2142 | 189 | {"PDR for %s, but no symbol", 0, 0}; |
817bc7b8 JG |
190 | |
191 | struct complaint pdr_static_symbol_complaint = | |
5f7b2142 | 192 | {"can't handle PDR for static proc at 0x%x", 0, 0}; |
c55e6167 | 193 | |
e157305c PS |
194 | struct complaint bad_setjmp_pdr_complaint = |
195 | {"fixing bad setjmp PDR from libc", 0, 0}; | |
196 | ||
6ac14d25 PS |
197 | struct complaint bad_fbitfield_complaint = |
198 | {"can't handle TIR fBitfield", 0, 0}; | |
199 | ||
200 | struct complaint bad_rfd_entry_complaint = | |
201 | {"bad rfd entry for file %d, index %d", 0, 0}; | |
202 | ||
203 | struct complaint unexpected_type_code_complaint = | |
204 | {"unexpected type code for %s", 0, 0}; | |
205 | ||
3eaebb75 SG |
206 | /* Macros and extra defs */ |
207 | ||
208 | /* Already-parsed symbols are marked specially */ | |
bd5635a1 RP |
209 | |
210 | #define stParsed stType | |
211 | ||
212 | /* Puns: hard to find whether -g was used and how */ | |
213 | ||
214 | #define MIN_GLEVEL GLEVEL_0 | |
215 | #define compare_glevel(a,b) \ | |
216 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
217 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
e072c738 JG |
218 | \f |
219 | /* Things that really are local to this module */ | |
220 | ||
c4413e2c FF |
221 | /* Remember what we deduced to be the source language of this psymtab. */ |
222 | ||
223 | static enum language psymtab_language = language_unknown; | |
224 | ||
6c2e7392 | 225 | /* Current BFD. */ |
3eaebb75 | 226 | |
6c2e7392 | 227 | static bfd *cur_bfd; |
3eaebb75 | 228 | |
e072c738 JG |
229 | /* Pointer to current file decriptor record, and its index */ |
230 | ||
5f7b2142 ILT |
231 | static FDR *cur_fdr; |
232 | static int cur_fd; | |
e072c738 JG |
233 | |
234 | /* Index of current symbol */ | |
235 | ||
5f7b2142 | 236 | static int cur_sdx; |
e072c738 JG |
237 | |
238 | /* Note how much "debuggable" this image is. We would like | |
239 | to see at least one FDR with full symbols */ | |
240 | ||
241 | static max_gdbinfo; | |
242 | static max_glevel; | |
243 | ||
244 | /* When examining .o files, report on undefined symbols */ | |
245 | ||
246 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
247 | ||
7e258d18 PB |
248 | /* Pseudo symbol to use when putting stabs into the symbol table. */ |
249 | ||
c55e6167 | 250 | static char stabs_symbol[] = STABS_SYMBOL; |
7e258d18 | 251 | |
e072c738 JG |
252 | /* Extra builtin types */ |
253 | ||
254 | struct type *builtin_type_complex; | |
255 | struct type *builtin_type_double_complex; | |
256 | struct type *builtin_type_fixed_dec; | |
257 | struct type *builtin_type_float_dec; | |
258 | struct type *builtin_type_string; | |
259 | ||
3eaebb75 | 260 | /* Forward declarations */ |
e072c738 | 261 | |
d747e0af | 262 | static void |
dac4929a | 263 | read_mips_symtab PARAMS ((struct objfile *, struct section_offsets *)); |
84ffdec2 JG |
264 | |
265 | static void | |
6c2e7392 | 266 | read_the_mips_symtab PARAMS ((bfd *)); |
84ffdec2 JG |
267 | |
268 | static int | |
e10a3052 | 269 | upgrade_type PARAMS ((struct type **, int, union aux_ext *, int)); |
84ffdec2 JG |
270 | |
271 | static void | |
6c2e7392 | 272 | parse_partial_symbols PARAMS ((struct objfile *, |
dac4929a | 273 | struct section_offsets *)); |
d747e0af MT |
274 | |
275 | static int | |
e5578a31 SG |
276 | cross_ref PARAMS ((union aux_ext *, struct type **, enum type_code, char **, |
277 | int)); | |
84ffdec2 JG |
278 | |
279 | static void | |
280 | fixup_sigtramp PARAMS ((void)); | |
281 | ||
282 | static struct symbol * | |
283 | new_symbol PARAMS ((char *)); | |
284 | ||
285 | static struct type * | |
286 | new_type PARAMS ((char *)); | |
287 | ||
288 | static struct block * | |
289 | new_block PARAMS ((int)); | |
290 | ||
291 | static struct symtab * | |
292 | new_symtab PARAMS ((char *, int, int, struct objfile *)); | |
293 | ||
294 | static struct linetable * | |
295 | new_linetable PARAMS ((int)); | |
296 | ||
297 | static struct blockvector * | |
298 | new_bvect PARAMS ((int)); | |
299 | ||
300 | static struct type * | |
301 | parse_type PARAMS ((union aux_ext *, int *, int)); | |
302 | ||
303 | static struct symbol * | |
304 | mylookup_symbol PARAMS ((char *, struct block *, enum namespace, | |
305 | enum address_class)); | |
306 | ||
307 | static struct block * | |
308 | shrink_block PARAMS ((struct block *, struct symtab *)); | |
309 | ||
310 | static PTR | |
311 | xzalloc PARAMS ((unsigned int)); | |
d747e0af MT |
312 | |
313 | static void | |
84ffdec2 | 314 | sort_blocks PARAMS ((struct symtab *)); |
d747e0af MT |
315 | |
316 | static int | |
391ca579 | 317 | compare_blocks PARAMS ((const void *, const void *)); |
84ffdec2 JG |
318 | |
319 | static struct partial_symtab * | |
320 | new_psymtab PARAMS ((char *, struct objfile *)); | |
321 | ||
322 | #if 0 | |
323 | static struct partial_symtab * | |
324 | parse_fdr PARAMS ((int, int, struct objfile *)); | |
325 | #endif | |
d747e0af MT |
326 | |
327 | static void | |
84ffdec2 | 328 | psymtab_to_symtab_1 PARAMS ((struct partial_symtab *, char *)); |
c55e6167 | 329 | |
84ffdec2 JG |
330 | static void |
331 | add_block PARAMS ((struct block *, struct symtab *)); | |
332 | ||
333 | static void | |
334 | add_symbol PARAMS ((struct symbol *, struct block *)); | |
335 | ||
336 | static int | |
337 | add_line PARAMS ((struct linetable *, int, CORE_ADDR, int)); | |
338 | ||
339 | static struct linetable * | |
340 | shrink_linetable PARAMS ((struct linetable *)); | |
341 | ||
342 | static char * | |
343 | mips_next_symbol_text PARAMS ((void)); | |
bd5635a1 RP |
344 | \f |
345 | /* Things we export to other modules */ | |
346 | ||
bd5635a1 | 347 | /* Address bounds for the signal trampoline in inferior, if any */ |
101f259c | 348 | /* FIXME: Nothing really seems to use this. Why is it here? */ |
bd5635a1 RP |
349 | |
350 | CORE_ADDR sigtramp_address, sigtramp_end; | |
351 | ||
4ad1963e | 352 | static void |
84ffdec2 JG |
353 | mipscoff_new_init (ignore) |
354 | struct objfile *ignore; | |
bd5635a1 | 355 | { |
e7ff735c | 356 | sigtramp_address = 0; |
0b0d6c3f PS |
357 | stabsread_new_init (); |
358 | buildsym_new_init (); | |
bd5635a1 RP |
359 | } |
360 | ||
4ad1963e | 361 | static void |
80d68b1d FF |
362 | mipscoff_symfile_init (objfile) |
363 | struct objfile *objfile; | |
bd5635a1 | 364 | { |
5f7b2142 | 365 | if (objfile->sym_private != NULL) |
80d68b1d | 366 | { |
5f7b2142 | 367 | mfree (objfile->md, objfile->sym_private); |
80d68b1d | 368 | } |
5f7b2142 | 369 | objfile->sym_private = NULL; |
bd5635a1 RP |
370 | } |
371 | ||
4ad1963e | 372 | static void |
dac4929a | 373 | mipscoff_symfile_read (objfile, section_offsets, mainline) |
80d68b1d | 374 | struct objfile *objfile; |
dac4929a | 375 | struct section_offsets *section_offsets; |
bd5635a1 RP |
376 | int mainline; |
377 | { | |
6ac14d25 PS |
378 | struct cleanup * back_to; |
379 | ||
021959e2 | 380 | init_minimal_symbol_collection (); |
6ac14d25 | 381 | back_to = make_cleanup (discard_minimal_symbols, 0); |
bd5635a1 RP |
382 | |
383 | /* Now that the executable file is positioned at symbol table, | |
384 | process it and define symbols accordingly. */ | |
385 | ||
5f7b2142 | 386 | read_mips_symtab (objfile, section_offsets); |
bd5635a1 | 387 | |
021959e2 JG |
388 | /* Install any minimal symbols that have been collected as the current |
389 | minimal symbols for this objfile. */ | |
bd5635a1 | 390 | |
80d68b1d | 391 | install_minimal_symbols (objfile); |
6ac14d25 PS |
392 | |
393 | do_cleanups (back_to); | |
bd5635a1 | 394 | } |
817bc7b8 | 395 | |
80d68b1d FF |
396 | /* Perform any local cleanups required when we are done with a particular |
397 | objfile. I.E, we are in the process of discarding all symbol information | |
398 | for an objfile, freeing up all memory held for it, and unlinking the | |
399 | objfile struct from the global list of known objfiles. */ | |
400 | ||
401 | static void | |
402 | mipscoff_symfile_finish (objfile) | |
403 | struct objfile *objfile; | |
404 | { | |
5f7b2142 | 405 | if (objfile->sym_private != NULL) |
80d68b1d | 406 | { |
5f7b2142 | 407 | mfree (objfile->md, objfile->sym_private); |
80d68b1d FF |
408 | } |
409 | ||
6c2e7392 | 410 | cur_bfd = 0; |
80d68b1d FF |
411 | } |
412 | ||
d747e0af | 413 | /* Allocate zeroed memory */ |
bd5635a1 | 414 | |
84ffdec2 | 415 | static PTR |
5f7b2142 | 416 | xzalloc (size) |
e10a3052 | 417 | unsigned int size; |
bd5635a1 | 418 | { |
51b57ded | 419 | PTR p = xmalloc (size); |
bd5635a1 | 420 | |
4ed3a9ea | 421 | memset (p, 0, size); |
51b57ded | 422 | return p; |
bd5635a1 RP |
423 | } |
424 | ||
425 | /* Exported procedure: Builds a symtab from the PST partial one. | |
426 | Restores the environment in effect when PST was created, delegates | |
427 | most of the work to an ancillary procedure, and sorts | |
428 | and reorders the symtab list at the end */ | |
429 | ||
3eaebb75 | 430 | static void |
5f7b2142 ILT |
431 | mipscoff_psymtab_to_symtab (pst) |
432 | struct partial_symtab *pst; | |
bd5635a1 | 433 | { |
bd5635a1 | 434 | |
5f7b2142 ILT |
435 | if (!pst) |
436 | return; | |
bd5635a1 | 437 | |
5f7b2142 ILT |
438 | if (info_verbose) |
439 | { | |
440 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |
441 | fflush (stdout); | |
442 | } | |
bd5635a1 | 443 | |
5f7b2142 | 444 | next_symbol_text_func = mips_next_symbol_text; |
c55e6167 | 445 | |
5f7b2142 | 446 | psymtab_to_symtab_1 (pst, pst->filename); |
bd5635a1 | 447 | |
5f7b2142 ILT |
448 | /* Match with global symbols. This only needs to be done once, |
449 | after all of the symtabs and dependencies have been read in. */ | |
450 | scan_file_globals (pst->objfile); | |
bd5635a1 | 451 | |
5f7b2142 ILT |
452 | if (info_verbose) |
453 | printf_filtered ("done.\n"); | |
bd5635a1 RP |
454 | } |
455 | ||
456 | /* Exported procedure: Is PC in the signal trampoline code */ | |
457 | ||
b8c50f09 | 458 | int |
5f7b2142 ILT |
459 | in_sigtramp (pc, ignore) |
460 | CORE_ADDR pc; | |
461 | char *ignore; /* function name */ | |
bd5635a1 | 462 | { |
5f7b2142 ILT |
463 | if (sigtramp_address == 0) |
464 | fixup_sigtramp (); | |
465 | return (pc >= sigtramp_address && pc < sigtramp_end); | |
bd5635a1 | 466 | } |
bd5635a1 RP |
467 | \f |
468 | /* File-level interface functions */ | |
469 | ||
6c2e7392 | 470 | /* Read the symtab information from file ABFD into memory. */ |
d747e0af MT |
471 | |
472 | static void | |
6c2e7392 | 473 | read_the_mips_symtab (abfd) |
5f7b2142 | 474 | bfd *abfd; |
bd5635a1 | 475 | { |
6c2e7392 PS |
476 | if (ecoff_slurp_symbolic_info (abfd) == false) |
477 | error ("Error reading symbol table: %s", bfd_errmsg (bfd_error)); | |
bd5635a1 RP |
478 | } |
479 | ||
bd5635a1 RP |
480 | /* Find a file descriptor given its index RF relative to a file CF */ |
481 | ||
3eaebb75 SG |
482 | static FDR * |
483 | get_rfd (cf, rf) | |
5f7b2142 | 484 | int cf, rf; |
bd5635a1 | 485 | { |
6c2e7392 | 486 | FDR *fdrs; |
5f7b2142 | 487 | register FDR *f; |
6c2e7392 | 488 | RFDT rfd; |
5f7b2142 | 489 | |
6c2e7392 PS |
490 | fdrs = ecoff_data (cur_bfd)->fdr; |
491 | f = fdrs + cf; | |
5f7b2142 ILT |
492 | /* Object files do not have the RFD table, all refs are absolute */ |
493 | if (f->rfdBase == 0) | |
6c2e7392 | 494 | return fdrs + rf; |
6ac14d25 PS |
495 | (*ecoff_backend (cur_bfd)->swap_rfd_in) |
496 | (cur_bfd, | |
497 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
498 | + (f->rfdBase + rf) * ecoff_backend (cur_bfd)->external_rfd_size), | |
499 | &rfd); | |
6c2e7392 | 500 | return fdrs + rfd; |
bd5635a1 RP |
501 | } |
502 | ||
503 | /* Return a safer print NAME for a file descriptor */ | |
504 | ||
3eaebb75 | 505 | static char * |
6c2e7392 PS |
506 | fdr_name (f) |
507 | FDR *f; | |
bd5635a1 | 508 | { |
6c2e7392 | 509 | if (f->rss == -1) |
5f7b2142 | 510 | return "<stripped file>"; |
6c2e7392 | 511 | if (f->rss == 0) |
5f7b2142 | 512 | return "<NFY>"; |
6c2e7392 | 513 | return ecoff_data (cur_bfd)->ss + f->issBase + f->rss; |
bd5635a1 RP |
514 | } |
515 | ||
516 | ||
dac4929a SG |
517 | /* Read in and parse the symtab of the file OBJFILE. Symbols from |
518 | different sections are relocated via the SECTION_OFFSETS. */ | |
bd5635a1 | 519 | |
d747e0af | 520 | static void |
dac4929a | 521 | read_mips_symtab (objfile, section_offsets) |
5f7b2142 ILT |
522 | struct objfile *objfile; |
523 | struct section_offsets *section_offsets; | |
bd5635a1 | 524 | { |
6c2e7392 | 525 | cur_bfd = objfile->obfd; |
bd5635a1 | 526 | |
6c2e7392 | 527 | read_the_mips_symtab (objfile->obfd); |
bd5635a1 | 528 | |
6c2e7392 | 529 | parse_partial_symbols (objfile, section_offsets); |
bd5635a1 | 530 | |
7e258d18 | 531 | #if 0 |
6c2e7392 PS |
532 | /* Check to make sure file was compiled with -g. If not, warn the |
533 | user of this limitation. */ | |
5f7b2142 ILT |
534 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) |
535 | { | |
536 | if (max_gdbinfo == 0) | |
6c2e7392 | 537 | printf ("\n%s not compiled with -g, debugging support is limited.\n", |
5f7b2142 | 538 | objfile->name); |
6c2e7392 | 539 | printf ("You should compile with -g2 or -g3 for best debugging support.\n"); |
5f7b2142 ILT |
540 | fflush (stdout); |
541 | } | |
7e258d18 | 542 | #endif |
bd5635a1 | 543 | } |
bd5635a1 RP |
544 | \f |
545 | /* Local utilities */ | |
546 | ||
bd5635a1 RP |
547 | /* Map of FDR indexes to partial symtabs */ |
548 | ||
5f7b2142 ILT |
549 | struct pst_map |
550 | { | |
551 | struct partial_symtab *pst; /* the psymtab proper */ | |
552 | int n_globals; /* exported globals (external symbols) */ | |
553 | int globals_offset; /* cumulative */ | |
d4ea2aba | 554 | }; |
bd5635a1 RP |
555 | |
556 | ||
557 | /* Utility stack, used to nest procedures and blocks properly. | |
558 | It is a doubly linked list, to avoid too many alloc/free. | |
559 | Since we might need it quite a few times it is NOT deallocated | |
560 | after use. */ | |
561 | ||
5f7b2142 ILT |
562 | static struct parse_stack |
563 | { | |
564 | struct parse_stack *next, *prev; | |
565 | struct symtab *cur_st; /* Current symtab. */ | |
566 | struct block *cur_block; /* Block in it. */ | |
567 | int blocktype; /* What are we parsing. */ | |
568 | int maxsyms; /* Max symbols in this block. */ | |
569 | struct type *cur_type; /* Type we parse fields for. */ | |
570 | int cur_field; /* Field number in cur_type. */ | |
571 | int procadr; /* Start addres of this procedure */ | |
572 | int numargs; /* Its argument count */ | |
6c2e7392 PS |
573 | } |
574 | ||
575 | *top_stack; /* Top stack ptr */ | |
bd5635a1 RP |
576 | |
577 | ||
578 | /* Enter a new lexical context */ | |
579 | ||
4ad1963e | 580 | static void |
5f7b2142 | 581 | push_parse_stack () |
bd5635a1 | 582 | { |
5f7b2142 ILT |
583 | struct parse_stack *new; |
584 | ||
585 | /* Reuse frames if possible */ | |
586 | if (top_stack && top_stack->prev) | |
587 | new = top_stack->prev; | |
588 | else | |
589 | new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack)); | |
590 | /* Initialize new frame with previous content */ | |
591 | if (top_stack) | |
592 | { | |
593 | register struct parse_stack *prev = new->prev; | |
bd5635a1 | 594 | |
5f7b2142 ILT |
595 | *new = *top_stack; |
596 | top_stack->prev = new; | |
597 | new->prev = prev; | |
598 | new->next = top_stack; | |
599 | } | |
600 | top_stack = new; | |
bd5635a1 RP |
601 | } |
602 | ||
603 | /* Exit a lexical context */ | |
604 | ||
4ad1963e | 605 | static void |
5f7b2142 | 606 | pop_parse_stack () |
bd5635a1 | 607 | { |
5f7b2142 ILT |
608 | if (!top_stack) |
609 | return; | |
610 | if (top_stack->next) | |
611 | top_stack = top_stack->next; | |
bd5635a1 RP |
612 | } |
613 | ||
614 | ||
615 | /* Cross-references might be to things we haven't looked at | |
616 | yet, e.g. type references. To avoid too many type | |
617 | duplications we keep a quick fixup table, an array | |
618 | of lists of references indexed by file descriptor */ | |
619 | ||
5f7b2142 ILT |
620 | static struct mips_pending |
621 | { | |
622 | struct mips_pending *next; /* link */ | |
6ac14d25 | 623 | char *s; /* the unswapped symbol */ |
5f7b2142 | 624 | struct type *t; /* its partial type descriptor */ |
bd5635a1 RP |
625 | } **pending_list; |
626 | ||
627 | ||
628 | /* Check whether we already saw symbol SH in file FH as undefined */ | |
629 | ||
4ad1963e | 630 | static struct mips_pending * |
5f7b2142 ILT |
631 | is_pending_symbol (fh, sh) |
632 | FDR *fh; | |
6ac14d25 | 633 | char *sh; |
bd5635a1 | 634 | { |
6c2e7392 | 635 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
636 | register struct mips_pending *p; |
637 | ||
638 | /* Linear search is ok, list is typically no more than 10 deep */ | |
639 | for (p = pending_list[f_idx]; p; p = p->next) | |
640 | if (p->s == sh) | |
641 | break; | |
642 | return p; | |
bd5635a1 RP |
643 | } |
644 | ||
bd5635a1 RP |
645 | /* Add a new undef symbol SH of type T */ |
646 | ||
4ad1963e | 647 | static void |
5f7b2142 ILT |
648 | add_pending (fh, sh, t) |
649 | FDR *fh; | |
6ac14d25 | 650 | char *sh; |
5f7b2142 | 651 | struct type *t; |
bd5635a1 | 652 | { |
6c2e7392 | 653 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
654 | struct mips_pending *p = is_pending_symbol (fh, sh); |
655 | ||
656 | /* Make sure we do not make duplicates */ | |
657 | if (!p) | |
658 | { | |
659 | p = (struct mips_pending *) xmalloc (sizeof (*p)); | |
660 | p->s = sh; | |
661 | p->t = t; | |
662 | p->next = pending_list[f_idx]; | |
663 | pending_list[f_idx] = p; | |
664 | } | |
bd5635a1 RP |
665 | } |
666 | ||
667 | /* Throw away undef entries when done with file index F_IDX */ | |
84ffdec2 | 668 | /* FIXME -- storage leak. This is never called!!! --gnu */ |
bd5635a1 | 669 | |
51b57ded FF |
670 | #if 0 |
671 | ||
4ad1963e | 672 | static void |
5f7b2142 ILT |
673 | free_pending (f_idx) |
674 | int f_idx; | |
bd5635a1 | 675 | { |
5f7b2142 | 676 | register struct mips_pending *p, *q; |
bd5635a1 | 677 | |
5f7b2142 ILT |
678 | for (p = pending_list[f_idx]; p; p = q) |
679 | { | |
680 | q = p->next; | |
681 | free ((PTR) p); | |
682 | } | |
683 | pending_list[f_idx] = 0; | |
bd5635a1 RP |
684 | } |
685 | ||
51b57ded FF |
686 | #endif |
687 | ||
bd5635a1 | 688 | \f |
5f7b2142 | 689 | |
bd5635a1 RP |
690 | /* Parsing Routines proper. */ |
691 | ||
692 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. | |
693 | For blocks, procedures and types we open a new lexical context. | |
6c2e7392 PS |
694 | This is basically just a big switch on the symbol's type. Argument |
695 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
696 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
697 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
698 | aux symbols are big-endian or little-endian. Return count of | |
699 | SYMR's handled (normally one). | |
700 | ||
701 | FIXME: This modifies the symbol, but the only way we have to save | |
702 | the modified information is to stuff it back into the BFD data. */ | |
bd5635a1 | 703 | |
7e258d18 | 704 | static int |
6c2e7392 | 705 | parse_symbol (sh, ax, ext_sh, bigend) |
5f7b2142 ILT |
706 | SYMR *sh; |
707 | union aux_ext *ax; | |
6ac14d25 | 708 | char *ext_sh; |
5f7b2142 | 709 | int bigend; |
bd5635a1 | 710 | { |
6ac14d25 PS |
711 | const bfd_size_type external_sym_size |
712 | = ecoff_backend (cur_bfd)->external_sym_size; | |
713 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) = | |
714 | ecoff_backend (cur_bfd)->swap_sym_in; | |
5f7b2142 ILT |
715 | char *name; |
716 | struct symbol *s; | |
717 | struct block *b; | |
6c2e7392 | 718 | struct mips_pending *pend; |
5f7b2142 ILT |
719 | struct type *t; |
720 | struct field *f; | |
721 | int count = 1; | |
5f7b2142 ILT |
722 | enum address_class class; |
723 | TIR tir; | |
724 | ||
6ac14d25 | 725 | if (ext_sh == (char *) NULL) |
6c2e7392 PS |
726 | name = ecoff_data (cur_bfd)->ssext + sh->iss; |
727 | else | |
728 | name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh->iss; | |
729 | ||
5f7b2142 ILT |
730 | switch (sh->st) |
731 | { | |
5f7b2142 ILT |
732 | case stNil: |
733 | break; | |
734 | ||
735 | case stGlobal: /* external symbol, goes into global block */ | |
736 | class = LOC_STATIC; | |
737 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
738 | GLOBAL_BLOCK); | |
6c2e7392 | 739 | s = new_symbol (name); |
5f7b2142 ILT |
740 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
741 | goto data; | |
742 | ||
743 | case stStatic: /* static data, goes into current block. */ | |
744 | class = LOC_STATIC; | |
745 | b = top_stack->cur_block; | |
6c2e7392 | 746 | s = new_symbol (name); |
e7ff735c JK |
747 | if (sh->sc == scCommon) |
748 | { | |
749 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
750 | address is not in the symbol; we need to fix it later in | |
751 | scan_file_globals. */ | |
752 | int bucket = hashname (SYMBOL_NAME (s)); | |
753 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; | |
754 | global_sym_chain[bucket] = s; | |
755 | } | |
756 | else | |
757 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
5f7b2142 ILT |
758 | goto data; |
759 | ||
760 | case stLocal: /* local variable, goes into current block */ | |
761 | if (sh->sc == scRegister) | |
762 | { | |
763 | class = LOC_REGISTER; | |
764 | if (sh->value > 31) | |
765 | sh->value += FP0_REGNUM - 32; | |
766 | } | |
767 | else | |
768 | class = LOC_LOCAL; | |
769 | b = top_stack->cur_block; | |
6c2e7392 | 770 | s = new_symbol (name); |
5f7b2142 ILT |
771 | SYMBOL_VALUE (s) = sh->value; |
772 | ||
773 | data: /* Common code for symbols describing data */ | |
774 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
775 | SYMBOL_CLASS (s) = class; | |
776 | add_symbol (s, b); | |
777 | ||
778 | /* Type could be missing in a number of cases */ | |
779 | if (sh->sc == scUndefined || sh->sc == scNil || | |
780 | sh->index == 0xfffff) | |
781 | SYMBOL_TYPE (s) = builtin_type_int; /* undefined? */ | |
782 | else | |
783 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend); | |
784 | /* Value of a data symbol is its memory address */ | |
785 | break; | |
786 | ||
787 | case stParam: /* arg to procedure, goes into current block */ | |
788 | max_gdbinfo++; | |
789 | top_stack->numargs++; | |
790 | ||
5f7b2142 ILT |
791 | /* Special GNU C++ name. */ |
792 | if (name[0] == CPLUS_MARKER && name[1] == 't' && name[2] == 0) | |
793 | name = "this"; /* FIXME, not alloc'd in obstack */ | |
794 | s = new_symbol (name); | |
795 | ||
796 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
e7ff735c | 797 | switch (sh->sc) |
5f7b2142 | 798 | { |
e7ff735c JK |
799 | case scRegister: |
800 | /* Pass by value in register. */ | |
801 | SYMBOL_CLASS(s) = LOC_REGPARM; | |
5f7b2142 | 802 | if (sh->value > 31) |
e7ff735c JK |
803 | sh->value += FP0_REGNUM-32; |
804 | break; | |
805 | case scVar: | |
806 | /* Pass by reference on stack. */ | |
807 | SYMBOL_CLASS(s) = LOC_REF_ARG; | |
808 | break; | |
809 | case scVarRegister: | |
810 | /* Pass by reference in register. */ | |
811 | SYMBOL_CLASS(s) = LOC_REGPARM_ADDR; | |
812 | break; | |
813 | default: | |
814 | /* Pass by value on stack. */ | |
815 | SYMBOL_CLASS(s) = LOC_ARG; | |
816 | break; | |
5f7b2142 | 817 | } |
5f7b2142 ILT |
818 | SYMBOL_VALUE (s) = sh->value; |
819 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend); | |
820 | add_symbol (s, top_stack->cur_block); | |
0c4d2cc2 | 821 | #if 0 |
5f7b2142 ILT |
822 | /* FIXME: This has not been tested. See dbxread.c */ |
823 | /* Add the type of this parameter to the function/procedure | |
0c4d2cc2 | 824 | type of this block. */ |
5f7b2142 | 825 | add_param_to_type (&top_stack->cur_block->function->type, s); |
0c4d2cc2 | 826 | #endif |
5f7b2142 ILT |
827 | break; |
828 | ||
829 | case stLabel: /* label, goes into current block */ | |
6c2e7392 | 830 | s = new_symbol (name); |
5f7b2142 ILT |
831 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; /* so that it can be used */ |
832 | SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused */ | |
833 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
834 | SYMBOL_TYPE (s) = builtin_type_int; | |
835 | add_symbol (s, top_stack->cur_block); | |
836 | break; | |
837 | ||
838 | case stProc: /* Procedure, usually goes into global block */ | |
6ac14d25 | 839 | case stStaticProc: /* Static procedure, goes into current block */ |
6c2e7392 | 840 | s = new_symbol (name); |
5f7b2142 ILT |
841 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
842 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
843 | /* Type of the return value */ | |
844 | if (sh->sc == scUndefined || sh->sc == scNil) | |
845 | t = builtin_type_int; | |
846 | else | |
847 | t = parse_type (ax + sh->index + 1, 0, bigend); | |
848 | b = top_stack->cur_block; | |
849 | if (sh->st == stProc) | |
850 | { | |
851 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
852 | /* The next test should normally be true, | |
0c4d2cc2 JG |
853 | but provides a hook for nested functions |
854 | (which we don't want to make global). */ | |
5f7b2142 ILT |
855 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
856 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
857 | } | |
858 | add_symbol (s, b); | |
bd5635a1 | 859 | |
5f7b2142 | 860 | /* Make a type for the procedure itself */ |
0c4d2cc2 | 861 | #if 0 |
5f7b2142 ILT |
862 | /* FIXME: This has not been tested yet! See dbxread.c */ |
863 | /* Generate a template for the type of this function. The | |
864 | types of the arguments will be added as we read the symbol | |
865 | table. */ | |
866 | bcopy (SYMBOL_TYPE (s), lookup_function_type (t), sizeof (struct type)); | |
0c4d2cc2 | 867 | #else |
5f7b2142 | 868 | SYMBOL_TYPE (s) = lookup_function_type (t); |
0c4d2cc2 | 869 | #endif |
bd5635a1 | 870 | |
5f7b2142 ILT |
871 | /* Create and enter a new lexical context */ |
872 | b = new_block (top_stack->maxsyms); | |
873 | SYMBOL_BLOCK_VALUE (s) = b; | |
874 | BLOCK_FUNCTION (b) = s; | |
875 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
876 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
877 | add_block (b, top_stack->cur_st); | |
878 | ||
879 | /* Not if we only have partial info */ | |
880 | if (sh->sc == scUndefined || sh->sc == scNil) | |
881 | break; | |
882 | ||
883 | push_parse_stack (); | |
884 | top_stack->cur_block = b; | |
885 | top_stack->blocktype = sh->st; | |
886 | top_stack->cur_type = SYMBOL_TYPE (s); | |
887 | top_stack->cur_field = -1; | |
888 | top_stack->procadr = sh->value; | |
889 | top_stack->numargs = 0; | |
890 | ||
891 | sh->value = (long) SYMBOL_TYPE (s); | |
6ac14d25 | 892 | sh->st = stParsed; |
5f7b2142 ILT |
893 | break; |
894 | ||
895 | /* Beginning of code for structure, union, and enum definitions. | |
817bc7b8 | 896 | They all share a common set of local variables, defined here. */ |
5f7b2142 ILT |
897 | { |
898 | enum type_code type_code; | |
6ac14d25 | 899 | char *ext_tsym; |
5f7b2142 ILT |
900 | int nfields; |
901 | long max_value; | |
902 | struct field *f; | |
903 | ||
904 | case stStruct: /* Start a block defining a struct type */ | |
905 | type_code = TYPE_CODE_STRUCT; | |
906 | goto structured_common; | |
907 | ||
908 | case stUnion: /* Start a block defining a union type */ | |
909 | type_code = TYPE_CODE_UNION; | |
910 | goto structured_common; | |
911 | ||
912 | case stEnum: /* Start a block defining an enum type */ | |
913 | type_code = TYPE_CODE_ENUM; | |
914 | goto structured_common; | |
915 | ||
916 | case stBlock: /* Either a lexical block, or some type */ | |
e7ff735c | 917 | if (sh->sc != scInfo && sh->sc != scCommon) |
5f7b2142 ILT |
918 | goto case_stBlock_code; /* Lexical block */ |
919 | ||
920 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
921 | ||
922 | /* Common code for handling struct, union, enum, and/or as-yet- | |
923 | unknown-type blocks of info about structured data. `type_code' | |
924 | has been set to the proper TYPE_CODE, if we know it. */ | |
925 | structured_common: | |
926 | push_parse_stack (); | |
927 | top_stack->blocktype = stBlock; | |
928 | ||
6c2e7392 | 929 | s = new_symbol (name); |
5f7b2142 ILT |
930 | SYMBOL_NAMESPACE (s) = STRUCT_NAMESPACE; |
931 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
932 | SYMBOL_VALUE (s) = 0; | |
933 | add_symbol (s, top_stack->cur_block); | |
934 | ||
935 | /* First count the number of fields and the highest value. */ | |
936 | nfields = 0; | |
937 | max_value = 0; | |
6ac14d25 PS |
938 | for (ext_tsym = ext_sh + external_sym_size; |
939 | ; | |
940 | ext_tsym += external_sym_size) | |
5f7b2142 | 941 | { |
6c2e7392 PS |
942 | SYMR tsym; |
943 | ||
6ac14d25 | 944 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 | 945 | |
1c8961dd | 946 | switch (tsym.st) |
5f7b2142 | 947 | { |
1c8961dd JK |
948 | case stEnd: |
949 | goto end_of_fields; | |
950 | ||
951 | case stMember: | |
5f7b2142 ILT |
952 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) |
953 | /* If the type of the member is Nil (or Void), | |
954 | without qualifiers, assume the tag is an | |
955 | enumeration. */ | |
6c2e7392 | 956 | if (tsym.index == indexNil) |
5f7b2142 ILT |
957 | type_code = TYPE_CODE_ENUM; |
958 | else | |
959 | { | |
960 | ecoff_swap_tir_in (bigend, | |
6c2e7392 | 961 | &ax[tsym.index].a_ti, |
5f7b2142 ILT |
962 | &tir); |
963 | if ((tir.bt == btNil || tir.bt == btVoid) | |
964 | && tir.tq0 == tqNil) | |
965 | type_code = TYPE_CODE_ENUM; | |
817bc7b8 | 966 | } |
5f7b2142 | 967 | nfields++; |
6c2e7392 PS |
968 | if (tsym.value > max_value) |
969 | max_value = tsym.value; | |
1c8961dd JK |
970 | break; |
971 | ||
1c8961dd JK |
972 | case stBlock: |
973 | case stUnion: | |
974 | case stEnum: | |
975 | case stStruct: | |
976 | case stParsed: | |
977 | { | |
978 | #if 0 | |
979 | /* This is a no-op; is it trying to tell us something | |
980 | we should be checking? */ | |
981 | if (tsym.sc == scVariant); /*UNIMPLEMENTED*/ | |
982 | #endif | |
983 | if (tsym.index != 0) | |
984 | { | |
985 | /* This is something like a struct within a | |
986 | struct. Skip over the fields of the inner | |
987 | struct. The -1 is because the for loop will | |
988 | increment ext_tsym. */ | |
6ac14d25 PS |
989 | ext_tsym = ((char *) ecoff_data (cur_bfd)->external_sym |
990 | + ((cur_fdr->isymBase + tsym.index - 1) | |
991 | * external_sym_size)); | |
1c8961dd JK |
992 | } |
993 | } | |
994 | break; | |
995 | ||
6ac14d25 PS |
996 | case stTypedef: |
997 | /* mips cc puts out a typedef for struct x if it is not yet | |
998 | defined when it encounters | |
999 | struct y { struct x *xp; }; | |
1000 | Just ignore it. */ | |
1001 | break; | |
1002 | ||
1c8961dd JK |
1003 | default: |
1004 | complain (&block_member_complaint, tsym.st); | |
5f7b2142 | 1005 | } |
5f7b2142 | 1006 | } |
1c8961dd | 1007 | end_of_fields:; |
5f7b2142 ILT |
1008 | |
1009 | /* In an stBlock, there is no way to distinguish structs, | |
1010 | unions, and enums at this point. This is a bug in the | |
1011 | original design (that has been fixed with the recent | |
1012 | addition of the stStruct, stUnion, and stEnum symbol | |
1013 | types.) The way you can tell is if/when you see a variable | |
1014 | or field of that type. In that case the variable's type | |
1015 | (in the AUX table) says if the type is struct, union, or | |
1016 | enum, and points back to the stBlock here. So you can | |
1017 | patch the tag kind up later - but only if there actually is | |
1018 | a variable or field of that type. | |
1019 | ||
1020 | So until we know for sure, we will guess at this point. | |
1021 | The heuristic is: | |
1022 | If the first member has index==indexNil or a void type, | |
1023 | assume we have an enumeration. | |
1024 | Otherwise, if there is more than one member, and all | |
1025 | the members have offset 0, assume we have a union. | |
1026 | Otherwise, assume we have a struct. | |
1027 | ||
1028 | The heuristic could guess wrong in the case of of an | |
1029 | enumeration with no members or a union with one (or zero) | |
1030 | members, or when all except the last field of a struct have | |
1031 | width zero. These are uncommon and/or illegal situations, | |
1032 | and in any case guessing wrong probably doesn't matter | |
1033 | much. | |
1034 | ||
1035 | But if we later do find out we were wrong, we fixup the tag | |
1036 | kind. Members of an enumeration must be handled | |
1037 | differently from struct/union fields, and that is harder to | |
1038 | patch up, but luckily we shouldn't need to. (If there are | |
1039 | any enumeration members, we can tell for sure it's an enum | |
1040 | here.) */ | |
1041 | ||
1042 | if (type_code == TYPE_CODE_UNDEF) | |
1043 | if (nfields > 1 && max_value == 0) | |
1044 | type_code = TYPE_CODE_UNION; | |
1045 | else | |
1046 | type_code = TYPE_CODE_STRUCT; | |
1047 | ||
1048 | /* If this type was expected, use its partial definition */ | |
6c2e7392 PS |
1049 | pend = is_pending_symbol (cur_fdr, ext_sh); |
1050 | if (pend != (struct mips_pending *) NULL) | |
1051 | t = pend->t; | |
5f7b2142 | 1052 | else |
e7ff735c | 1053 | t = new_type (NULL); |
5f7b2142 | 1054 | |
e7ff735c JK |
1055 | TYPE_TAG_NAME (t) = obconcat (¤t_objfile->symbol_obstack, |
1056 | "", "", name); | |
5f7b2142 ILT |
1057 | TYPE_CODE (t) = type_code; |
1058 | TYPE_LENGTH (t) = sh->value; | |
1059 | TYPE_NFIELDS (t) = nfields; | |
6c2e7392 PS |
1060 | TYPE_FIELDS (t) = f = ((struct field *) |
1061 | TYPE_ALLOC (t, | |
1062 | nfields * sizeof (struct field))); | |
6ac14d25 PS |
1063 | /* Handle opaque struct definitions. */ |
1064 | if (TYPE_NFIELDS (t) == 0) | |
1065 | { | |
1066 | TYPE_FLAGS (t) |= TYPE_FLAG_STUB; | |
1067 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1068 | } | |
5f7b2142 ILT |
1069 | |
1070 | if (type_code == TYPE_CODE_ENUM) | |
1071 | { | |
1072 | /* This is a non-empty enum. */ | |
6ac14d25 PS |
1073 | for (ext_tsym = ext_sh + external_sym_size; |
1074 | ; | |
1075 | ext_tsym += external_sym_size) | |
5f7b2142 | 1076 | { |
6c2e7392 | 1077 | SYMR tsym; |
5f7b2142 | 1078 | struct symbol *enum_sym; |
6c2e7392 | 1079 | |
6ac14d25 | 1080 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 PS |
1081 | |
1082 | if (tsym.st != stMember) | |
1083 | break; | |
1084 | ||
1085 | f->bitpos = tsym.value; | |
5f7b2142 | 1086 | f->type = t; |
6c2e7392 PS |
1087 | f->name = (ecoff_data (cur_bfd)->ss |
1088 | + cur_fdr->issBase | |
1089 | + tsym.iss); | |
5f7b2142 ILT |
1090 | f->bitsize = 0; |
1091 | ||
1092 | enum_sym = ((struct symbol *) | |
817bc7b8 | 1093 | obstack_alloc (¤t_objfile->symbol_obstack, |
5f7b2142 ILT |
1094 | sizeof (struct symbol))); |
1095 | memset ((PTR) enum_sym, 0, sizeof (struct symbol)); | |
1096 | SYMBOL_NAME (enum_sym) = f->name; | |
1097 | SYMBOL_CLASS (enum_sym) = LOC_CONST; | |
1098 | SYMBOL_TYPE (enum_sym) = t; | |
1099 | SYMBOL_NAMESPACE (enum_sym) = VAR_NAMESPACE; | |
6c2e7392 | 1100 | SYMBOL_VALUE (enum_sym) = tsym.value; |
5f7b2142 ILT |
1101 | add_symbol (enum_sym, top_stack->cur_block); |
1102 | ||
1103 | /* Skip the stMembers that we've handled. */ | |
1104 | count++; | |
1105 | f++; | |
1106 | } | |
1107 | } | |
1108 | SYMBOL_TYPE (s) = t; | |
1109 | /* make this the current type */ | |
1110 | top_stack->cur_type = t; | |
1111 | top_stack->cur_field = 0; | |
1112 | /* Mark that symbol has a type, and say which one */ | |
1113 | sh->value = (long) t; | |
6ac14d25 | 1114 | sh->st = stParsed; |
5f7b2142 ILT |
1115 | break; |
1116 | ||
1117 | /* End of local variables shared by struct, union, enum, and | |
1118 | block (as yet unknown struct/union/enum) processing. */ | |
1119 | } | |
817bc7b8 | 1120 | |
5f7b2142 ILT |
1121 | case_stBlock_code: |
1122 | /* beginnning of (code) block. Value of symbol | |
1123 | is the displacement from procedure start */ | |
1124 | push_parse_stack (); | |
1125 | top_stack->blocktype = stBlock; | |
1126 | b = new_block (top_stack->maxsyms); | |
1127 | BLOCK_START (b) = sh->value + top_stack->procadr; | |
1128 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1129 | top_stack->cur_block = b; | |
1130 | add_block (b, top_stack->cur_st); | |
1131 | break; | |
1132 | ||
1133 | case stEnd: /* end (of anything) */ | |
e7ff735c | 1134 | if (sh->sc == scInfo || sh->sc == scCommon) |
5f7b2142 ILT |
1135 | { |
1136 | /* Finished with type */ | |
1137 | top_stack->cur_type = 0; | |
1138 | } | |
6c2e7392 PS |
1139 | else if (sh->sc == scText && |
1140 | (top_stack->blocktype == stProc || | |
1141 | top_stack->blocktype == stStaticProc)) | |
5f7b2142 ILT |
1142 | { |
1143 | /* Finished with procedure */ | |
1144 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
1145 | struct mips_extra_func_info *e; | |
1146 | struct block *b; | |
1147 | int i; | |
1148 | ||
1149 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1150 | ||
1151 | /* Make up special symbol to contain procedure specific info */ | |
1152 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
1153 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
1154 | SYMBOL_CLASS (s) = LOC_CONST; | |
1155 | SYMBOL_TYPE (s) = builtin_type_void; | |
1156 | e = ((struct mips_extra_func_info *) | |
1157 | obstack_alloc (¤t_objfile->symbol_obstack, | |
1158 | sizeof (struct mips_extra_func_info))); | |
1159 | SYMBOL_VALUE (s) = (int) e; | |
1160 | e->numargs = top_stack->numargs; | |
1161 | add_symbol (s, top_stack->cur_block); | |
1162 | ||
1163 | /* Reallocate symbols, saving memory */ | |
1164 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1165 | ||
1166 | /* f77 emits proc-level with address bounds==[0,0], | |
6c2e7392 | 1167 | So look for such child blocks, and patch them. */ |
5f7b2142 ILT |
1168 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) |
1169 | { | |
1170 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
1171 | if (BLOCK_SUPERBLOCK (b_bad) == b | |
1172 | && BLOCK_START (b_bad) == top_stack->procadr | |
1173 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1174 | { | |
1175 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1176 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1177 | } | |
1178 | } | |
1179 | } | |
1180 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1181 | { | |
6c2e7392 PS |
1182 | /* End of (code) block. The value of the symbol is the |
1183 | displacement from the procedure`s start address of the | |
1184 | end of this block. */ | |
5f7b2142 ILT |
1185 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
1186 | shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1187 | } | |
1188 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1189 | { | |
1190 | /* End of file. Pop parse stack and ignore. Higher | |
6c2e7392 | 1191 | level code deals with this. */ |
5f7b2142 | 1192 | ; |
bd5635a1 | 1193 | } |
5f7b2142 ILT |
1194 | else |
1195 | complain (&stEnd_complaint, sh->sc); | |
1196 | ||
1197 | pop_parse_stack (); /* restore previous lexical context */ | |
1198 | break; | |
1199 | ||
1200 | case stMember: /* member of struct or union */ | |
1201 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
6c2e7392 | 1202 | f->name = name; |
5f7b2142 ILT |
1203 | f->bitpos = sh->value; |
1204 | f->bitsize = 0; | |
1205 | f->type = parse_type (ax + sh->index, &f->bitsize, bigend); | |
1206 | break; | |
1207 | ||
1208 | case stTypedef: /* type definition */ | |
6c2e7392 | 1209 | s = new_symbol (name); |
5f7b2142 ILT |
1210 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
1211 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
1212 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; | |
1213 | add_symbol (s, top_stack->cur_block); | |
1214 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend); | |
1215 | sh->value = (long) SYMBOL_TYPE (s); | |
6ac14d25 PS |
1216 | sh->st = stParsed; |
1217 | if (TYPE_TAG_NAME (SYMBOL_TYPE (s)) != NULL | |
1218 | && STREQ (TYPE_TAG_NAME (SYMBOL_TYPE (s)), "<undefined>")) | |
1219 | { | |
1220 | /* mips cc puts out a stTypedef for opaque struct definitions. */ | |
1221 | TYPE_FLAGS (SYMBOL_TYPE (s)) |= TYPE_FLAG_STUB; | |
1222 | } | |
1223 | /* Incomplete definitions of structs should not get a name. */ | |
1224 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1225 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
1226 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT | |
1227 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) | |
1228 | { | |
1229 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1230 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1231 | { | |
1232 | /* If we are giving a name to a type such as "pointer to | |
1233 | foo" or "function returning foo", we better not set | |
1234 | the TYPE_NAME. If the program contains "typedef char | |
1235 | *caddr_t;", we don't want all variables of type char | |
1236 | * to print as caddr_t. This is not just a | |
1237 | consequence of GDB's type management; CC and GCC (at | |
1238 | least through version 2.4) both output variables of | |
1239 | either type char * or caddr_t with the type | |
1240 | refering to the stTypedef symbol for caddr_t. If a future | |
1241 | compiler cleans this up it GDB is not ready for it | |
1242 | yet, but if it becomes ready we somehow need to | |
1243 | disable this check (without breaking the PCC/GCC2.4 | |
1244 | case). | |
1245 | ||
1246 | Sigh. | |
1247 | ||
1248 | Fortunately, this check seems not to be necessary | |
1249 | for anything except pointers or functions. */ | |
1250 | } | |
1251 | else | |
1252 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_NAME (s); | |
1253 | } | |
5f7b2142 ILT |
1254 | break; |
1255 | ||
1256 | case stFile: /* file name */ | |
1257 | push_parse_stack (); | |
1258 | top_stack->blocktype = sh->st; | |
1259 | break; | |
1260 | ||
1261 | /* I`ve never seen these for C */ | |
1262 | case stRegReloc: | |
1263 | break; /* register relocation */ | |
1264 | case stForward: | |
1265 | break; /* forwarding address */ | |
1266 | case stConstant: | |
1267 | break; /* constant */ | |
1268 | default: | |
1269 | complain (&unknown_mips_symtype_complaint, sh->st); | |
1270 | break; | |
1271 | } | |
6c2e7392 | 1272 | |
5f7b2142 | 1273 | return count; |
bd5635a1 RP |
1274 | } |
1275 | ||
d747e0af MT |
1276 | /* Parse the type information provided in the raw AX entries for |
1277 | the symbol SH. Return the bitfield size in BS, in case. | |
1278 | We must byte-swap the AX entries before we use them; BIGEND says whether | |
1279 | they are big-endian or little-endian (from fh->fBigendian). */ | |
bd5635a1 | 1280 | |
84ffdec2 | 1281 | static struct type * |
5f7b2142 ILT |
1282 | parse_type (ax, bs, bigend) |
1283 | union aux_ext *ax; | |
1284 | int *bs; | |
1285 | int bigend; | |
bd5635a1 | 1286 | { |
5f7b2142 ILT |
1287 | /* Null entries in this map are treated specially */ |
1288 | static struct type **map_bt[] = | |
1289 | { | |
1290 | &builtin_type_void, /* btNil */ | |
1291 | 0, /* btAdr */ | |
1292 | &builtin_type_char, /* btChar */ | |
1293 | &builtin_type_unsigned_char,/* btUChar */ | |
1294 | &builtin_type_short, /* btShort */ | |
1295 | &builtin_type_unsigned_short, /* btUShort */ | |
1296 | &builtin_type_int, /* btInt */ | |
1297 | &builtin_type_unsigned_int, /* btUInt */ | |
1298 | &builtin_type_long, /* btLong */ | |
1299 | &builtin_type_unsigned_long,/* btULong */ | |
1300 | &builtin_type_float, /* btFloat */ | |
1301 | &builtin_type_double, /* btDouble */ | |
1302 | 0, /* btStruct */ | |
1303 | 0, /* btUnion */ | |
1304 | 0, /* btEnum */ | |
1305 | 0, /* btTypedef */ | |
1306 | 0, /* btRange */ | |
1307 | 0, /* btSet */ | |
1308 | &builtin_type_complex, /* btComplex */ | |
1309 | &builtin_type_double_complex, /* btDComplex */ | |
1310 | 0, /* btIndirect */ | |
1311 | &builtin_type_fixed_dec, /* btFixedDec */ | |
1312 | &builtin_type_float_dec, /* btFloatDec */ | |
1313 | &builtin_type_string, /* btString */ | |
1314 | 0, /* btBit */ | |
1315 | 0, /* btPicture */ | |
1316 | &builtin_type_void, /* btVoid */ | |
1317 | &builtin_type_long_long, /* btLongLong */ | |
1318 | &builtin_type_unsigned_long_long, /* btULongLong */ | |
1319 | }; | |
1320 | ||
1321 | TIR t[1]; | |
1322 | struct type *tp = 0; | |
5f7b2142 | 1323 | union aux_ext *tax; |
6c2e7392 | 1324 | enum type_code type_code = TYPE_CODE_UNDEF; |
5f7b2142 ILT |
1325 | |
1326 | /* Use aux as a type information record, map its basic type. */ | |
1327 | tax = ax; | |
1328 | ecoff_swap_tir_in (bigend, &tax->a_ti, t); | |
1329 | if (t->bt > (sizeof (map_bt) / sizeof (*map_bt))) | |
1330 | { | |
1331 | complain (&basic_type_complaint, t->bt); | |
1332 | return builtin_type_int; | |
1333 | } | |
1334 | if (map_bt[t->bt]) | |
1335 | { | |
1336 | tp = *map_bt[t->bt]; | |
5f7b2142 ILT |
1337 | } |
1338 | else | |
1339 | { | |
1340 | tp = NULL; | |
1341 | /* Cannot use builtin types -- build our own */ | |
1342 | switch (t->bt) | |
bd5635a1 | 1343 | { |
5f7b2142 ILT |
1344 | case btAdr: |
1345 | tp = lookup_pointer_type (builtin_type_void); | |
5f7b2142 ILT |
1346 | break; |
1347 | case btStruct: | |
1348 | type_code = TYPE_CODE_STRUCT; | |
5f7b2142 ILT |
1349 | break; |
1350 | case btUnion: | |
1351 | type_code = TYPE_CODE_UNION; | |
5f7b2142 ILT |
1352 | break; |
1353 | case btEnum: | |
1354 | type_code = TYPE_CODE_ENUM; | |
5f7b2142 ILT |
1355 | break; |
1356 | case btRange: | |
1357 | type_code = TYPE_CODE_RANGE; | |
5f7b2142 ILT |
1358 | break; |
1359 | case btSet: | |
1360 | type_code = TYPE_CODE_SET; | |
5f7b2142 ILT |
1361 | break; |
1362 | case btTypedef: | |
1363 | default: | |
1364 | complain (&basic_type_complaint, t->bt); | |
1365 | return builtin_type_int; | |
bd5635a1 | 1366 | } |
5f7b2142 | 1367 | } |
bd5635a1 | 1368 | |
5f7b2142 ILT |
1369 | /* Skip over any further type qualifiers (FIXME). */ |
1370 | if (t->continued) | |
1371 | { | |
1372 | /* This is the way it would work if the compiler worked */ | |
1373 | TIR t1[1]; | |
1374 | do | |
1375 | { | |
1376 | ax++; | |
6c2e7392 | 1377 | ecoff_swap_tir_in (bigend, &ax->a_ti, t1); |
bd5635a1 | 1378 | } |
5f7b2142 ILT |
1379 | while (t1->continued); |
1380 | } | |
bd5635a1 | 1381 | |
5f7b2142 ILT |
1382 | /* Move on to next aux */ |
1383 | ax++; | |
d747e0af | 1384 | |
5f7b2142 ILT |
1385 | if (t->fBitfield) |
1386 | { | |
6ac14d25 PS |
1387 | /* Inhibit core dumps with some cfront generated objects that |
1388 | corrupt the TIR. */ | |
1389 | if (bs == (int *)NULL) | |
1390 | { | |
1391 | complain (&bad_fbitfield_complaint, t->bt); | |
1392 | return builtin_type_int; | |
1393 | } | |
5f7b2142 ILT |
1394 | *bs = AUX_GET_WIDTH (bigend, ax); |
1395 | ax++; | |
1396 | } | |
bd5635a1 | 1397 | |
5f7b2142 ILT |
1398 | /* All these types really point to some (common) MIPS type |
1399 | definition, and only the type-qualifiers fully identify | |
1400 | them. We'll make the same effort at sharing. */ | |
e7ff735c | 1401 | if (t->bt == btStruct || |
5f7b2142 ILT |
1402 | t->bt == btUnion || |
1403 | t->bt == btEnum || | |
e7ff735c JK |
1404 | |
1405 | /* btSet (I think) implies that the name is a tag name, not a typedef | |
1406 | name. This apparently is a MIPS extension for C sets. */ | |
5f7b2142 ILT |
1407 | t->bt == btSet) |
1408 | { | |
e7ff735c JK |
1409 | char *name; |
1410 | ||
1411 | /* Try to cross reference this type */ | |
1412 | ax += cross_ref (ax, &tp, type_code, &name, bigend); | |
1413 | /* reading .o file ? */ | |
1414 | if (tp == (struct type *) NULL) | |
1415 | tp = init_type (type_code, 0, 0, (char *) NULL, | |
1416 | (struct objfile *) NULL); | |
1417 | ||
6ac14d25 PS |
1418 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1419 | Any type may be returned from cross_ref if file indirect entries | |
1420 | are corrupted. */ | |
1421 | if (TYPE_CODE (tp) != TYPE_CODE_STRUCT | |
1422 | && TYPE_CODE (tp) != TYPE_CODE_UNION | |
1423 | && TYPE_CODE (tp) != TYPE_CODE_ENUM) | |
e7ff735c | 1424 | { |
6ac14d25 PS |
1425 | complain (&unexpected_type_code_complaint, name); |
1426 | } | |
1427 | else | |
1428 | { | |
1429 | ||
1430 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
1431 | exception is if we guessed wrong re struct/union/enum. */ | |
1432 | if (TYPE_CODE (tp) != type_code) | |
1433 | { | |
1434 | complain (&bad_tag_guess_complaint, name); | |
1435 | TYPE_CODE (tp) = type_code; | |
1436 | } | |
1437 | /* Do not set the tag name if it is a compiler generated tag name | |
1438 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */ | |
1439 | if (name[0] == '.' || name[0] == '\0') | |
1440 | TYPE_TAG_NAME (tp) = NULL; | |
1441 | else if (TYPE_TAG_NAME (tp) == NULL | |
1442 | || !STREQ (TYPE_TAG_NAME (tp), name)) | |
1443 | TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name), | |
1444 | ¤t_objfile->type_obstack); | |
e7ff735c | 1445 | } |
e7ff735c JK |
1446 | } |
1447 | ||
1448 | /* All these types really point to some (common) MIPS type | |
1449 | definition, and only the type-qualifiers fully identify | |
6ac14d25 PS |
1450 | them. We'll make the same effort at sharing. |
1451 | FIXME: btIndirect cannot happen here as it is handled by the | |
1452 | switch t->bt above. And we are not doing any guessing on range types. */ | |
e7ff735c JK |
1453 | if (t->bt == btIndirect || |
1454 | t->bt == btRange) | |
1455 | { | |
1456 | char *name; | |
5f7b2142 ILT |
1457 | |
1458 | /* Try to cross reference this type */ | |
e7ff735c | 1459 | ax += cross_ref (ax, &tp, type_code, &name, bigend); |
5f7b2142 | 1460 | /* reading .o file ? */ |
6c2e7392 | 1461 | if (tp == (struct type *) NULL) |
5f7b2142 ILT |
1462 | tp = init_type (type_code, 0, 0, (char *) NULL, |
1463 | (struct objfile *) NULL); | |
5f7b2142 | 1464 | |
6ac14d25 PS |
1465 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1466 | Any type may be returned from cross_ref if file indirect entries | |
1467 | are corrupted. */ | |
1468 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) | |
1469 | { | |
1470 | complain (&unexpected_type_code_complaint, name); | |
1471 | } | |
1472 | else | |
5f7b2142 | 1473 | { |
6ac14d25 PS |
1474 | /* Usually, TYPE_CODE(tp) is already type_code. The main |
1475 | exception is if we guessed wrong re struct/union/enum. */ | |
1476 | if (TYPE_CODE (tp) != type_code) | |
1477 | { | |
1478 | complain (&bad_tag_guess_complaint, name); | |
1479 | TYPE_CODE (tp) = type_code; | |
1480 | } | |
1481 | if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name)) | |
1482 | TYPE_NAME (tp) = obsavestring (name, strlen (name), | |
1483 | ¤t_objfile->type_obstack); | |
bd5635a1 | 1484 | } |
5f7b2142 | 1485 | } |
bd5635a1 | 1486 | |
5f7b2142 ILT |
1487 | /* Deal with range types */ |
1488 | if (t->bt == btRange) | |
1489 | { | |
1490 | TYPE_NFIELDS (tp) = 2; | |
1491 | TYPE_FIELDS (tp) = ((struct field *) | |
1492 | TYPE_ALLOC (tp, 2 * sizeof (struct field))); | |
1493 | TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"), | |
1494 | ¤t_objfile->type_obstack); | |
1495 | TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax); | |
1496 | ax++; | |
1497 | TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"), | |
1498 | ¤t_objfile->type_obstack); | |
1499 | TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax); | |
1500 | ax++; | |
1501 | } | |
bd5635a1 | 1502 | |
5f7b2142 | 1503 | /* Parse all the type qualifiers now. If there are more |
6c2e7392 | 1504 | than 6 the game will continue in the next aux */ |
bd5635a1 RP |
1505 | |
1506 | #define PARSE_TQ(tq) \ | |
d747e0af | 1507 | if (t->tq != tqNil) ax += upgrade_type(&tp, t->tq, ax, bigend); |
bd5635a1 | 1508 | |
5f7b2142 ILT |
1509 | again:PARSE_TQ (tq0); |
1510 | PARSE_TQ (tq1); | |
1511 | PARSE_TQ (tq2); | |
1512 | PARSE_TQ (tq3); | |
1513 | PARSE_TQ (tq4); | |
1514 | PARSE_TQ (tq5); | |
bd5635a1 RP |
1515 | #undef PARSE_TQ |
1516 | ||
5f7b2142 ILT |
1517 | if (t->continued) |
1518 | { | |
1519 | tax++; | |
1520 | ecoff_swap_tir_in (bigend, &tax->a_ti, t); | |
1521 | goto again; | |
1522 | } | |
1523 | return tp; | |
bd5635a1 RP |
1524 | } |
1525 | ||
1526 | /* Make up a complex type from a basic one. Type is passed by | |
1527 | reference in TPP and side-effected as necessary. The type | |
1528 | qualifier TQ says how to handle the aux symbols at AX for | |
d747e0af MT |
1529 | the symbol SX we are currently analyzing. BIGEND says whether |
1530 | aux symbols are big-endian or little-endian. | |
bd5635a1 RP |
1531 | Returns the number of aux symbols we parsed. */ |
1532 | ||
3eaebb75 | 1533 | static int |
5f7b2142 ILT |
1534 | upgrade_type (tpp, tq, ax, bigend) |
1535 | struct type **tpp; | |
1536 | int tq; | |
1537 | union aux_ext *ax; | |
1538 | int bigend; | |
bd5635a1 | 1539 | { |
5f7b2142 ILT |
1540 | int off; |
1541 | struct type *t; | |
1542 | ||
1543 | /* Used in array processing */ | |
1544 | int rf, id; | |
1545 | FDR *fh; | |
1546 | struct type *range; | |
1547 | struct type *indx; | |
1548 | int lower, upper; | |
1549 | RNDXR rndx; | |
1550 | ||
1551 | switch (tq) | |
1552 | { | |
1553 | case tqPtr: | |
1554 | t = lookup_pointer_type (*tpp); | |
1555 | *tpp = t; | |
1556 | return 0; | |
1557 | ||
1558 | case tqProc: | |
1559 | t = lookup_function_type (*tpp); | |
1560 | *tpp = t; | |
1561 | return 0; | |
1562 | ||
1563 | case tqArray: | |
1564 | off = 0; | |
1565 | ||
1566 | /* Determine and record the domain type (type of index) */ | |
6c2e7392 | 1567 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, &rndx); |
5f7b2142 ILT |
1568 | id = rndx.index; |
1569 | rf = rndx.rfd; | |
1570 | if (rf == 0xfff) | |
1571 | { | |
1572 | ax++; | |
1573 | rf = AUX_GET_ISYM (bigend, ax); | |
1574 | off++; | |
1575 | } | |
1576 | fh = get_rfd (cur_fd, rf); | |
1577 | ||
6c2e7392 PS |
1578 | indx = parse_type ((ecoff_data (cur_bfd)->external_aux |
1579 | + fh->iauxBase | |
1580 | + id), | |
5f7b2142 ILT |
1581 | (int *) NULL, bigend); |
1582 | ||
1583 | /* Get the bounds, and create the array type. */ | |
1584 | ax++; | |
1585 | lower = AUX_GET_DNLOW (bigend, ax); | |
1586 | ax++; | |
1587 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1588 | ax++; | |
1589 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1590 | ||
1591 | range = create_range_type ((struct type *) NULL, indx, | |
1592 | lower, upper); | |
1593 | ||
1594 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1595 | ||
1596 | /* Check whether supplied array element bit size matches | |
1597 | the known size of the element type. If this complaint | |
1598 | ends up not happening, we can remove this code. It's | |
1599 | here because we aren't sure we understand this *&%&$ | |
1600 | symbol format. */ | |
1601 | id = TYPE_LENGTH (TYPE_TARGET_TYPE (t)) << 3; /* bitsize */ | |
1602 | if (id == 0) | |
1603 | { | |
1604 | /* Most likely an undefined type */ | |
1605 | id = rf; | |
1606 | TYPE_LENGTH (TYPE_TARGET_TYPE (t)) = id >> 3; | |
1607 | } | |
1608 | if (id != rf) | |
1609 | complain (&array_bitsize_complaint, rf); | |
3eaebb75 | 1610 | |
5f7b2142 ILT |
1611 | *tpp = t; |
1612 | return 4 + off; | |
bd5635a1 | 1613 | |
5f7b2142 ILT |
1614 | case tqVol: |
1615 | /* Volatile -- currently ignored */ | |
1616 | return 0; | |
3eaebb75 | 1617 | |
5f7b2142 ILT |
1618 | case tqConst: |
1619 | /* Const -- currently ignored */ | |
1620 | return 0; | |
817bc7b8 | 1621 | |
5f7b2142 ILT |
1622 | default: |
1623 | complain (&unknown_type_qual_complaint, tq); | |
1624 | return 0; | |
1625 | } | |
bd5635a1 RP |
1626 | } |
1627 | ||
1628 | ||
6c2e7392 PS |
1629 | /* Parse a procedure descriptor record PR. Note that the procedure is |
1630 | parsed _after_ the local symbols, now we just insert the extra | |
1631 | information we need into a MIPS_EFI_SYMBOL_NAME symbol that has | |
1632 | already been placed in the procedure's main block. Note also that | |
1633 | images that have been partially stripped (ld -x) have been deprived | |
1634 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1635 | the offset of the first procedure for this FDR; we adjust the | |
b5d4d6d7 JK |
1636 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab |
1637 | to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol | |
1638 | in question, or NULL to use top_stack->cur_block. */ | |
9adb88b7 | 1639 | |
b5d4d6d7 | 1640 | static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long)); |
bd5635a1 | 1641 | |
d1bb1d41 | 1642 | static void |
b5d4d6d7 | 1643 | parse_procedure (pr, search_symtab, first_off) |
5f7b2142 | 1644 | PDR *pr; |
b5d4d6d7 | 1645 | struct symtab *search_symtab; |
6c2e7392 | 1646 | unsigned long first_off; |
bd5635a1 | 1647 | { |
b5d4d6d7 | 1648 | struct symbol *s, *i; |
5f7b2142 ILT |
1649 | struct block *b; |
1650 | struct mips_extra_func_info *e; | |
1651 | char *sh_name; | |
1652 | ||
6c2e7392 PS |
1653 | /* Simple rule to find files linked "-x" */ |
1654 | if (cur_fdr->rss == -1) | |
5f7b2142 | 1655 | { |
6c2e7392 PS |
1656 | if (pr->isym == -1) |
1657 | { | |
1658 | /* Static procedure at address pr->adr. Sigh. */ | |
1659 | complain (&pdr_static_symbol_complaint, pr->adr); | |
1660 | return; | |
1661 | } | |
1662 | else | |
1663 | { | |
1664 | /* external */ | |
1665 | EXTR she; | |
1666 | ||
6ac14d25 PS |
1667 | (*ecoff_backend (cur_bfd)->swap_ext_in) |
1668 | (cur_bfd, | |
1669 | ((char *) ecoff_data (cur_bfd)->external_ext | |
1670 | + pr->isym * ecoff_backend (cur_bfd)->external_ext_size), | |
1671 | &she); | |
6c2e7392 PS |
1672 | sh_name = ecoff_data (cur_bfd)->ssext + she.asym.iss; |
1673 | } | |
5f7b2142 | 1674 | } |
6c2e7392 PS |
1675 | else |
1676 | { | |
1677 | /* Full symbols */ | |
1678 | SYMR sh; | |
1679 | ||
6ac14d25 PS |
1680 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
1681 | (cur_bfd, | |
1682 | ((char *) ecoff_data (cur_bfd)->external_sym | |
1683 | + ((cur_fdr->isymBase + pr->isym) | |
1684 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
1685 | &sh); | |
6c2e7392 PS |
1686 | sh_name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
1687 | } | |
1688 | ||
b5d4d6d7 | 1689 | if (search_symtab != NULL) |
6c2e7392 | 1690 | { |
b5d4d6d7 JK |
1691 | #if 0 |
1692 | /* This loses both in the case mentioned (want a static, find a global), | |
1693 | but also if we are looking up a non-mangled name which happens to | |
1694 | match the name of a mangled function. */ | |
1695 | /* We have to save the cur_fdr across the call to lookup_symbol. | |
1696 | If the pdr is for a static function and if a global function with | |
1697 | the same name exists, lookup_symbol will eventually read in the symtab | |
1698 | for the global function and clobber cur_fdr. */ | |
1699 | FDR *save_cur_fdr = cur_fdr; | |
1700 | s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL); | |
1701 | cur_fdr = save_cur_fdr; | |
1702 | #else | |
1703 | s = mylookup_symbol | |
1704 | (sh_name, | |
1705 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK), | |
1706 | VAR_NAMESPACE, | |
1707 | LOC_BLOCK); | |
1708 | #endif | |
1709 | } | |
1710 | else | |
1711 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
1712 | VAR_NAMESPACE, LOC_BLOCK); | |
9adb88b7 | 1713 | |
b5d4d6d7 JK |
1714 | if (s != 0) |
1715 | { | |
1716 | b = SYMBOL_BLOCK_VALUE (s); | |
1717 | } | |
1718 | else | |
1719 | { | |
1720 | complain (&pdr_for_nonsymbol_complaint, sh_name); | |
b303297a | 1721 | #if 1 |
b5d4d6d7 | 1722 | return; |
dac4929a | 1723 | #else |
817bc7b8 | 1724 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ |
b5d4d6d7 JK |
1725 | s = new_symbol (sh_name); |
1726 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1727 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
1728 | /* Donno its type, hope int is ok */ | |
1729 | SYMBOL_TYPE (s) = lookup_function_type (builtin_type_int); | |
1730 | add_symbol (s, top_stack->cur_block); | |
1731 | /* Wont have symbols for this one */ | |
1732 | b = new_block (2); | |
1733 | SYMBOL_BLOCK_VALUE (s) = b; | |
1734 | BLOCK_FUNCTION (b) = s; | |
1735 | BLOCK_START (b) = pr->adr; | |
1736 | /* BOUND used to be the end of procedure's text, but the | |
1737 | argument is no longer passed in. */ | |
1738 | BLOCK_END (b) = bound; | |
1739 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1740 | add_block (b, top_stack->cur_st); | |
817bc7b8 | 1741 | #endif |
9adb88b7 | 1742 | } |
d1bb1d41 | 1743 | |
b5d4d6d7 JK |
1744 | i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST); |
1745 | ||
1746 | if (i) | |
5f7b2142 | 1747 | { |
b5d4d6d7 | 1748 | e = (struct mips_extra_func_info *) SYMBOL_VALUE (i); |
5f7b2142 ILT |
1749 | e->pdr = *pr; |
1750 | e->pdr.isym = (long) s; | |
6c2e7392 | 1751 | e->pdr.adr += cur_fdr->adr - first_off; |
e157305c PS |
1752 | |
1753 | /* Correct incorrect setjmp procedure descriptor from the library | |
1754 | to make backtrace through setjmp work. */ | |
1755 | if (e->pdr.pcreg == 0 && strcmp (sh_name, "setjmp") == 0) | |
1756 | { | |
1757 | complain (&bad_setjmp_pdr_complaint, 0); | |
1758 | e->pdr.pcreg = RA_REGNUM; | |
1759 | e->pdr.regmask = 0x80000000; | |
1760 | e->pdr.regoffset = -4; | |
1761 | } | |
5f7b2142 | 1762 | } |
bd5635a1 RP |
1763 | } |
1764 | ||
1765 | /* Parse the external symbol ES. Just call parse_symbol() after | |
1766 | making sure we know where the aux are for it. For procedures, | |
1767 | parsing of the PDRs has already provided all the needed | |
1768 | information, we only parse them if SKIP_PROCEDURES is false, | |
101f259c | 1769 | and only if this causes no symbol duplication. |
d747e0af | 1770 | BIGEND says whether aux entries are big-endian or little-endian. |
101f259c JG |
1771 | |
1772 | This routine clobbers top_stack->cur_block and ->cur_st. */ | |
bd5635a1 | 1773 | |
4ad1963e | 1774 | static void |
5f7b2142 ILT |
1775 | parse_external (es, skip_procedures, bigend) |
1776 | EXTR *es; | |
1777 | int skip_procedures; | |
1778 | int bigend; | |
bd5635a1 | 1779 | { |
5f7b2142 | 1780 | union aux_ext *ax; |
bd5635a1 | 1781 | |
5f7b2142 ILT |
1782 | if (es->ifd != ifdNil) |
1783 | { | |
1784 | cur_fd = es->ifd; | |
6c2e7392 PS |
1785 | cur_fdr = ecoff_data (cur_bfd)->fdr + cur_fd; |
1786 | ax = ecoff_data (cur_bfd)->external_aux + cur_fdr->iauxBase; | |
5f7b2142 ILT |
1787 | } |
1788 | else | |
1789 | { | |
6c2e7392 | 1790 | cur_fdr = ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
1791 | ax = 0; |
1792 | } | |
bd5635a1 | 1793 | |
5f7b2142 ILT |
1794 | /* Reading .o files */ |
1795 | if (es->asym.sc == scUndefined || es->asym.sc == scNil) | |
1796 | { | |
1797 | char *what; | |
1798 | switch (es->asym.st) | |
1799 | { | |
1800 | case stStaticProc: | |
bd5635a1 | 1801 | case stProc: |
5f7b2142 ILT |
1802 | what = "procedure"; |
1803 | n_undef_procs++; | |
1804 | break; | |
bd5635a1 | 1805 | case stGlobal: |
5f7b2142 ILT |
1806 | what = "variable"; |
1807 | n_undef_vars++; | |
1808 | break; | |
bd5635a1 | 1809 | case stLabel: |
5f7b2142 ILT |
1810 | what = "label"; |
1811 | n_undef_labels++; | |
1812 | break; | |
1813 | default: | |
1814 | what = "symbol"; | |
1815 | break; | |
1816 | } | |
1817 | n_undef_symbols++; | |
1818 | /* FIXME: Turn this into a complaint? */ | |
1819 | if (info_verbose) | |
1820 | printf_filtered ("Warning: %s `%s' is undefined (in %s)\n", | |
6c2e7392 PS |
1821 | what, |
1822 | ecoff_data (cur_bfd)->ssext + es->asym.iss, | |
1823 | fdr_name (cur_fdr)); | |
5f7b2142 ILT |
1824 | return; |
1825 | } | |
1826 | ||
1827 | switch (es->asym.st) | |
1828 | { | |
1829 | case stProc: | |
1830 | /* If we have full symbols we do not need more */ | |
1831 | if (skip_procedures) | |
1832 | return; | |
6c2e7392 PS |
1833 | if (mylookup_symbol (ecoff_data (cur_bfd)->ssext + es->asym.iss, |
1834 | top_stack->cur_block, | |
5f7b2142 ILT |
1835 | VAR_NAMESPACE, LOC_BLOCK)) |
1836 | break; | |
1837 | /* fall through */ | |
1838 | case stGlobal: | |
1839 | case stLabel: | |
6c2e7392 PS |
1840 | /* Note that the case of a symbol with indexNil must be handled |
1841 | anyways by parse_symbol(). */ | |
6ac14d25 | 1842 | parse_symbol (&es->asym, ax, (char *) NULL, bigend); |
6c2e7392 | 1843 | /* Note that parse_symbol changed es->asym. */ |
5f7b2142 ILT |
1844 | break; |
1845 | default: | |
1846 | break; | |
1847 | } | |
bd5635a1 RP |
1848 | } |
1849 | ||
1850 | /* Parse the line number info for file descriptor FH into | |
1851 | GDB's linetable LT. MIPS' encoding requires a little bit | |
1852 | of magic to get things out. Note also that MIPS' line | |
1853 | numbers can go back and forth, apparently we can live | |
1854 | with that and do not need to reorder our linetables */ | |
1855 | ||
4ad1963e | 1856 | static void |
6c2e7392 | 1857 | parse_lines (fh, pr, lt) |
5f7b2142 | 1858 | FDR *fh; |
6c2e7392 | 1859 | PDR *pr; |
5f7b2142 | 1860 | struct linetable *lt; |
bd5635a1 | 1861 | { |
6c2e7392 | 1862 | unsigned char *base; |
5f7b2142 ILT |
1863 | int j, k; |
1864 | int delta, count, lineno = 0; | |
6c2e7392 | 1865 | unsigned long first_off = pr->adr; |
5f7b2142 | 1866 | |
6c2e7392 | 1867 | if (fh->cbLineOffset == 0) |
5f7b2142 ILT |
1868 | return; |
1869 | ||
6c2e7392 PS |
1870 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset; |
1871 | ||
5f7b2142 | 1872 | /* Scan by procedure descriptors */ |
6c2e7392 PS |
1873 | k = 0; |
1874 | for (j = 0; j < fh->cpd; j++, pr++) | |
5f7b2142 ILT |
1875 | { |
1876 | int l, halt; | |
6c2e7392 | 1877 | unsigned long adr; |
5f7b2142 ILT |
1878 | |
1879 | /* No code for this one */ | |
1880 | if (pr->iline == ilineNil || | |
1881 | pr->lnLow == -1 || pr->lnHigh == -1) | |
1882 | continue; | |
6c2e7392 PS |
1883 | |
1884 | /* Aurgh! To know where to stop expanding we must look-ahead. */ | |
5f7b2142 ILT |
1885 | for (l = 1; l < (fh->cpd - j); l++) |
1886 | if (pr[l].iline != -1) | |
1887 | break; | |
1888 | if (l == (fh->cpd - j)) | |
1889 | halt = fh->cline; | |
1890 | else | |
1891 | halt = pr[l].iline; | |
6c2e7392 PS |
1892 | |
1893 | /* When procedures are moved around the linenumbers are | |
1894 | attributed to the next procedure up. */ | |
5f7b2142 ILT |
1895 | if (pr->iline >= halt) |
1896 | continue; | |
1897 | ||
6c2e7392 PS |
1898 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset + pr->cbLineOffset; |
1899 | adr = fh->adr + pr->adr - first_off; | |
1900 | l = adr >> 2; /* in words */ | |
1901 | halt += (adr >> 2) - pr->iline; | |
5f7b2142 ILT |
1902 | for (lineno = pr->lnLow; l < halt;) |
1903 | { | |
1904 | count = *base & 0x0f; | |
1905 | delta = *base++ >> 4; | |
1906 | if (delta >= 8) | |
1907 | delta -= 16; | |
1908 | if (delta == -8) | |
1909 | { | |
1910 | delta = (base[0] << 8) | base[1]; | |
1911 | if (delta >= 0x8000) | |
1912 | delta -= 0x10000; | |
1913 | base += 2; | |
1914 | } | |
1915 | lineno += delta; /* first delta is 0 */ | |
1916 | k = add_line (lt, lineno, l, k); | |
1917 | l += count + 1; | |
bd5635a1 | 1918 | } |
5f7b2142 | 1919 | } |
bd5635a1 | 1920 | } |
101f259c JG |
1921 | \f |
1922 | /* Master parsing procedure for first-pass reading of file symbols | |
6c2e7392 | 1923 | into a partial_symtab. */ |
bd5635a1 | 1924 | |
d747e0af | 1925 | static void |
6c2e7392 | 1926 | parse_partial_symbols (objfile, section_offsets) |
d4ea2aba | 1927 | struct objfile *objfile; |
dac4929a | 1928 | struct section_offsets *section_offsets; |
bd5635a1 | 1929 | { |
6ac14d25 PS |
1930 | const struct ecoff_backend_data * const backend = ecoff_backend (cur_bfd); |
1931 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
1932 | const bfd_size_type external_rfd_size = backend->external_rfd_size; | |
1933 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
1934 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
1935 | = backend->swap_ext_in; | |
1936 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
1937 | = backend->swap_sym_in; | |
1938 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
1939 | = backend->swap_rfd_in; | |
5f7b2142 | 1940 | int f_idx, s_idx; |
6c2e7392 | 1941 | HDRR *hdr = &ecoff_data (cur_bfd)->symbolic_header; |
5f7b2142 ILT |
1942 | /* Running pointers */ |
1943 | FDR *fh; | |
6ac14d25 PS |
1944 | char *ext_out; |
1945 | char *ext_out_end; | |
6c2e7392 PS |
1946 | EXTR *ext_block; |
1947 | register EXTR *ext_in; | |
1948 | EXTR *ext_in_end; | |
1949 | SYMR sh; | |
5f7b2142 ILT |
1950 | struct partial_symtab *pst; |
1951 | ||
1952 | int past_first_source_file = 0; | |
1953 | ||
1954 | /* List of current psymtab's include files */ | |
1955 | char **psymtab_include_list; | |
1956 | int includes_allocated; | |
1957 | int includes_used; | |
6c2e7392 | 1958 | EXTR *extern_tab; |
5f7b2142 ILT |
1959 | struct pst_map *fdr_to_pst; |
1960 | /* Index within current psymtab dependency list */ | |
1961 | struct partial_symtab **dependency_list; | |
1962 | int dependencies_used, dependencies_allocated; | |
1963 | struct cleanup *old_chain; | |
1964 | char *name; | |
1965 | ||
6c2e7392 PS |
1966 | extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack, |
1967 | sizeof (EXTR) * hdr->iextMax); | |
5f7b2142 ILT |
1968 | |
1969 | includes_allocated = 30; | |
1970 | includes_used = 0; | |
1971 | psymtab_include_list = (char **) alloca (includes_allocated * | |
1972 | sizeof (char *)); | |
1973 | next_symbol_text_func = mips_next_symbol_text; | |
1974 | ||
1975 | dependencies_allocated = 30; | |
1976 | dependencies_used = 0; | |
1977 | dependency_list = | |
1978 | (struct partial_symtab **) alloca (dependencies_allocated * | |
1979 | sizeof (struct partial_symtab *)); | |
1980 | ||
1981 | last_source_file = NULL; | |
1982 | ||
1983 | /* | |
6c2e7392 PS |
1984 | * Big plan: |
1985 | * | |
1986 | * Only parse the Local and External symbols, and the Relative FDR. | |
1987 | * Fixup enough of the loader symtab to be able to use it. | |
1988 | * Allocate space only for the file's portions we need to | |
1989 | * look at. (XXX) | |
1990 | */ | |
817bc7b8 | 1991 | |
5f7b2142 ILT |
1992 | max_gdbinfo = 0; |
1993 | max_glevel = MIN_GLEVEL; | |
1994 | ||
1995 | /* Allocate the map FDR -> PST. | |
1996 | Minor hack: -O3 images might claim some global data belongs | |
1997 | to FDR -1. We`ll go along with that */ | |
1998 | fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst); | |
1999 | old_chain = make_cleanup (free, fdr_to_pst); | |
2000 | fdr_to_pst++; | |
2001 | { | |
2002 | struct partial_symtab *pst = new_psymtab ("", objfile); | |
2003 | fdr_to_pst[-1].pst = pst; | |
2004 | FDR_IDX (pst) = -1; | |
2005 | } | |
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; | |
2101 | /* Make everything point to everything. */ | |
2102 | FDR_IDX (pst) = f_idx; | |
2103 | fdr_to_pst[f_idx].pst = pst; | |
6c2e7392 PS |
2104 | |
2105 | /* FIXME: This tampers with data from BFD. */ | |
5f7b2142 ILT |
2106 | fh->ioptBase = (int) pst; |
2107 | ||
6c2e7392 | 2108 | CUR_BFD (pst) = cur_bfd; |
5f7b2142 ILT |
2109 | |
2110 | /* The way to turn this into a symtab is to call... */ | |
2111 | pst->read_symtab = mipscoff_psymtab_to_symtab; | |
2112 | ||
2113 | pst->texthigh = pst->textlow; | |
2114 | ||
2115 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
6c2e7392 PS |
2116 | This symbol is emitted by mips-tfile to signal that the |
2117 | current object file uses encapsulated stabs instead of mips | |
2118 | ecoff for local symbols. (It is the second symbol because | |
2119 | the first symbol is the stFile used to signal the start of a | |
2120 | file). */ | |
2121 | processing_gcc_compilation = 0; | |
2122 | if (fh->csym >= 2) | |
2123 | { | |
6ac14d25 PS |
2124 | (*swap_sym_in) (cur_bfd, |
2125 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2126 | + (fh->isymBase + 1) * external_sym_size), | |
2127 | &sh); | |
6c2e7392 PS |
2128 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2129 | stabs_symbol)) | |
2130 | processing_gcc_compilation = 2; | |
2131 | } | |
2132 | ||
2133 | if (processing_gcc_compilation != 0) | |
5f7b2142 | 2134 | { |
5f7b2142 ILT |
2135 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) |
2136 | { | |
2137 | int type_code; | |
2138 | char *namestring; | |
6c2e7392 | 2139 | |
6ac14d25 PS |
2140 | (*swap_sym_in) (cur_bfd, |
2141 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2142 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2143 | &sh); | |
2144 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2145 | if (!ECOFF_IS_STAB (&sh)) | |
5f7b2142 | 2146 | { |
6c2e7392 | 2147 | if (sh.st == stProc || sh.st == stStaticProc) |
5f7b2142 | 2148 | { |
6c2e7392 PS |
2149 | long procaddr = sh.value; |
2150 | long isym; | |
2151 | ||
2152 | ||
2153 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2154 | (ecoff_data (cur_bfd)->external_aux | |
2155 | + fh->iauxBase | |
2156 | + sh.index)); | |
6ac14d25 PS |
2157 | (*swap_sym_in) (cur_bfd, |
2158 | (((char *) | |
2159 | ecoff_data (cur_bfd)->external_sym) | |
2160 | + ((fh->isymBase + isym - 1) | |
2161 | * external_sym_size)), | |
2162 | &sh); | |
6c2e7392 | 2163 | if (sh.st == stEnd) |
5f7b2142 | 2164 | { |
6c2e7392 | 2165 | long high = procaddr + sh.value; |
5f7b2142 ILT |
2166 | if (high > pst->texthigh) |
2167 | pst->texthigh = high; | |
101f259c | 2168 | } |
7e258d18 | 2169 | } |
5f7b2142 | 2170 | continue; |
817bc7b8 | 2171 | } |
6c2e7392 PS |
2172 | #define SET_NAMESTRING() \ |
2173 | namestring = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss | |
7e258d18 | 2174 | #define CUR_SYMBOL_TYPE type_code |
6c2e7392 | 2175 | #define CUR_SYMBOL_VALUE sh.value |
dac4929a | 2176 | #define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\ |
7e258d18 PB |
2177 | pst = save_pst |
2178 | #define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps) (void)0 | |
7e258d18 PB |
2179 | #define HANDLE_RBRAC(val) \ |
2180 | if ((val) > save_pst->texthigh) save_pst->texthigh = (val); | |
7e258d18 | 2181 | #include "partial-stab.h" |
7e258d18 | 2182 | } |
817bc7b8 | 2183 | } |
5f7b2142 ILT |
2184 | else |
2185 | { | |
5f7b2142 ILT |
2186 | for (cur_sdx = 0; cur_sdx < fh->csym;) |
2187 | { | |
2188 | char *name; | |
2189 | enum address_class class; | |
5f7b2142 | 2190 | |
6ac14d25 PS |
2191 | (*swap_sym_in) (cur_bfd, |
2192 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2193 | + ((fh->isymBase + cur_sdx) | |
2194 | * external_sym_size)), | |
2195 | &sh); | |
6c2e7392 | 2196 | |
6ac14d25 | 2197 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 ILT |
2198 | { |
2199 | cur_sdx++; | |
2200 | continue; | |
817bc7b8 | 2201 | } |
101f259c | 2202 | |
6ac14d25 PS |
2203 | /* Non absolute static symbols go into the minimal table. */ |
2204 | if (sh.sc == scUndefined || sh.sc == scNil | |
2205 | || (sh.index == indexNil | |
2206 | && (sh.st != stStatic || sh.sc == scAbs))) | |
5f7b2142 ILT |
2207 | { |
2208 | /* FIXME, premature? */ | |
2209 | cur_sdx++; | |
2210 | continue; | |
817bc7b8 | 2211 | } |
dac4929a | 2212 | |
6c2e7392 | 2213 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
817bc7b8 | 2214 | |
6c2e7392 | 2215 | switch (sh.st) |
5f7b2142 ILT |
2216 | { |
2217 | long high; | |
2218 | long procaddr; | |
2219 | int new_sdx; | |
2220 | ||
5f7b2142 | 2221 | case stStaticProc: /* Function */ |
6ac14d25 PS |
2222 | /* I believe this is used only for file-local functions. |
2223 | The comment in symconst.h ("load time only static procs") | |
2224 | isn't particularly clear on this point. */ | |
2225 | prim_record_minimal_symbol (name, sh.value, mst_file_text); | |
2226 | /* FALLTHROUGH */ | |
2227 | ||
2228 | case stProc: /* Asm labels apparently */ | |
5f7b2142 ILT |
2229 | ADD_PSYMBOL_TO_LIST (name, strlen (name), |
2230 | VAR_NAMESPACE, LOC_BLOCK, | |
6c2e7392 | 2231 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2232 | psymtab_language, objfile); |
2233 | /* Skip over procedure to next one. */ | |
6c2e7392 | 2234 | if (sh.index >= hdr->iauxMax) |
5f7b2142 ILT |
2235 | { |
2236 | /* Should not happen, but does when cross-compiling | |
2237 | with the MIPS compiler. FIXME -- pull later. */ | |
2238 | complain (&index_complaint, name); | |
2239 | new_sdx = cur_sdx + 1; /* Don't skip at all */ | |
2240 | } | |
2241 | else | |
2242 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
6c2e7392 PS |
2243 | (ecoff_data (cur_bfd)->external_aux |
2244 | + fh->iauxBase | |
2245 | + sh.index)); | |
2246 | procaddr = sh.value; | |
5f7b2142 ILT |
2247 | |
2248 | if (new_sdx <= cur_sdx) | |
2249 | { | |
2250 | /* This should not happen either... FIXME. */ | |
2251 | complain (&aux_index_complaint, name); | |
2252 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
7e258d18 | 2253 | } |
817bc7b8 | 2254 | |
5f7b2142 | 2255 | cur_sdx = new_sdx; |
6ac14d25 PS |
2256 | (*swap_sym_in) (cur_bfd, |
2257 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2258 | + ((fh->isymBase + cur_sdx - 1) | |
2259 | * external_sym_size)), | |
2260 | &sh); | |
6c2e7392 | 2261 | if (sh.st != stEnd) |
817bc7b8 | 2262 | continue; |
6c2e7392 | 2263 | high = procaddr + sh.value; |
5f7b2142 ILT |
2264 | if (high > pst->texthigh) |
2265 | pst->texthigh = high; | |
2266 | continue; | |
2267 | ||
2268 | case stStatic: /* Variable */ | |
6ac14d25 PS |
2269 | if (sh.sc == scData || sh.sc == scSData || sh.sc == scRData) |
2270 | prim_record_minimal_symbol (name, sh.value, mst_file_data); | |
2271 | else | |
2272 | prim_record_minimal_symbol (name, sh.value, mst_file_bss); | |
5f7b2142 ILT |
2273 | class = LOC_STATIC; |
2274 | break; | |
2275 | ||
2276 | case stTypedef:/* Typedef */ | |
2277 | class = LOC_TYPEDEF; | |
2278 | break; | |
2279 | ||
2280 | case stConstant: /* Constant decl */ | |
2281 | class = LOC_CONST; | |
2282 | break; | |
2283 | ||
2284 | case stUnion: | |
2285 | case stStruct: | |
2286 | case stEnum: | |
2287 | case stBlock: /* { }, str, un, enum*/ | |
e7ff735c | 2288 | if (sh.sc == scInfo || sh.sc == scCommon) |
5f7b2142 ILT |
2289 | { |
2290 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2291 | STRUCT_NAMESPACE, LOC_TYPEDEF, | |
2292 | objfile->static_psymbols, | |
6c2e7392 | 2293 | sh.value, |
5f7b2142 ILT |
2294 | psymtab_language, objfile); |
2295 | } | |
2296 | /* Skip over the block */ | |
6c2e7392 | 2297 | new_sdx = sh.index; |
5f7b2142 ILT |
2298 | if (new_sdx <= cur_sdx) |
2299 | { | |
2300 | /* This happens with the Ultrix kernel. */ | |
2301 | complain (&block_index_complaint, name); | |
2302 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
2303 | } | |
2304 | cur_sdx = new_sdx; | |
2305 | continue; | |
2306 | ||
2307 | case stFile: /* File headers */ | |
2308 | case stLabel: /* Labels */ | |
2309 | case stEnd: /* Ends of files */ | |
2310 | goto skip; | |
2311 | ||
2312 | case stLocal: /* Local variables */ | |
2313 | /* Normally these are skipped because we skip over | |
2314 | all blocks we see. However, these can occur | |
2315 | as visible symbols in a .h file that contains code. */ | |
2316 | goto skip; | |
2317 | ||
2318 | default: | |
2319 | /* Both complaints are valid: one gives symbol name, | |
2320 | the other the offending symbol type. */ | |
6c2e7392 PS |
2321 | complain (&unknown_sym_complaint, name); |
2322 | complain (&unknown_st_complaint, sh.st); | |
5f7b2142 ILT |
2323 | cur_sdx++; |
2324 | continue; | |
101f259c | 2325 | } |
5f7b2142 ILT |
2326 | /* Use this gdb symbol */ |
2327 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2328 | VAR_NAMESPACE, class, | |
6c2e7392 | 2329 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2330 | psymtab_language, objfile); |
2331 | skip: | |
2332 | cur_sdx++; /* Go to next file symbol */ | |
817bc7b8 | 2333 | } |
d4ea2aba | 2334 | |
5f7b2142 ILT |
2335 | /* Now do enter the external symbols. */ |
2336 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; | |
2337 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
2338 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
2339 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
2340 | for (; --cur_sdx >= 0; ext_ptr++) | |
2341 | { | |
5f7b2142 | 2342 | enum address_class class; |
6c2e7392 PS |
2343 | SYMR *psh; |
2344 | char *name; | |
5f7b2142 | 2345 | |
6c2e7392 | 2346 | if (ext_ptr->ifd != f_idx) |
5f7b2142 | 2347 | abort (); |
6c2e7392 PS |
2348 | psh = &ext_ptr->asym; |
2349 | switch (psh->st) | |
5f7b2142 ILT |
2350 | { |
2351 | case stProc: | |
2352 | class = LOC_BLOCK; | |
2353 | break; | |
2354 | case stLabel: | |
2355 | class = LOC_LABEL; | |
2356 | break; | |
2357 | default: | |
6c2e7392 PS |
2358 | complain (&unknown_ext_complaint, |
2359 | ecoff_data (cur_bfd)->ssext + psh->iss); | |
5f7b2142 ILT |
2360 | /* Fall through, pretend it's global. */ |
2361 | case stGlobal: | |
2362 | class = LOC_STATIC; | |
2363 | break; | |
d4ea2aba | 2364 | } |
6c2e7392 PS |
2365 | name = ecoff_data (cur_bfd)->ssext + psh->iss; |
2366 | ADD_PSYMBOL_ADDR_TO_LIST (name, strlen (name), | |
2367 | VAR_NAMESPACE, class, | |
2368 | objfile->global_psymbols, (CORE_ADDR) psh->value, | |
2369 | psymtab_language, objfile); | |
7e258d18 | 2370 | } |
bd5635a1 RP |
2371 | } |
2372 | ||
5f7b2142 ILT |
2373 | end_psymtab (save_pst, psymtab_include_list, includes_used, |
2374 | -1, save_pst->texthigh, | |
2375 | dependency_list, dependencies_used); | |
2376 | if (objfile->ei.entry_point >= save_pst->textlow && | |
2377 | objfile->ei.entry_point < save_pst->texthigh) | |
2378 | { | |
2379 | objfile->ei.entry_file_lowpc = save_pst->textlow; | |
2380 | objfile->ei.entry_file_highpc = save_pst->texthigh; | |
2381 | } | |
817bc7b8 JG |
2382 | } |
2383 | ||
5f7b2142 ILT |
2384 | /* Now scan the FDRs for dependencies */ |
2385 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) | |
2386 | { | |
2387 | int s_id0 = 0; | |
6c2e7392 | 2388 | fh = f_idx + ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
2389 | pst = fdr_to_pst[f_idx].pst; |
2390 | ||
2391 | /* This should catch stabs-in-ecoff. */ | |
2392 | if (fh->crfd <= 1) | |
2393 | continue; | |
2394 | ||
2395 | if (fh->cpd == 0) | |
6c2e7392 | 2396 | { /* If there are no functions defined here ... */ |
5f7b2142 ILT |
2397 | /* ...then presumably a .h file: drop reverse depends .h->.c */ |
2398 | for (; s_id0 < fh->crfd; s_id0++) | |
2399 | { | |
6c2e7392 PS |
2400 | RFDT rh; |
2401 | ||
6ac14d25 PS |
2402 | (*swap_rfd_in) (cur_bfd, |
2403 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2404 | + (fh->rfdBase + s_id0) * external_rfd_size), | |
2405 | &rh); | |
6c2e7392 | 2406 | if (rh == f_idx) |
5f7b2142 ILT |
2407 | { |
2408 | s_id0++; /* Skip self-dependency */ | |
2409 | break; | |
021959e2 | 2410 | } |
5f7b2142 | 2411 | } |
021959e2 | 2412 | } |
5f7b2142 ILT |
2413 | pst->number_of_dependencies = fh->crfd - s_id0; |
2414 | pst->dependencies = | |
2415 | ((struct partial_symtab **) | |
2416 | obstack_alloc (&objfile->psymbol_obstack, | |
2417 | (pst->number_of_dependencies | |
2418 | * sizeof (struct partial_symtab *)))); | |
2419 | for (s_idx = s_id0; s_idx < fh->crfd; s_idx++) | |
2420 | { | |
6c2e7392 PS |
2421 | RFDT rh; |
2422 | ||
6ac14d25 PS |
2423 | (*swap_rfd_in) (cur_bfd, |
2424 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2425 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
2426 | &rh); | |
6c2e7392 PS |
2427 | if (rh < 0 || rh >= hdr->ifdMax) |
2428 | complain (&bad_file_number_complaint, rh); | |
5f7b2142 | 2429 | else |
6c2e7392 | 2430 | pst->dependencies[s_idx - s_id0] = fdr_to_pst[rh].pst; |
021959e2 JG |
2431 | } |
2432 | } | |
5f7b2142 | 2433 | do_cleanups (old_chain); |
bd5635a1 RP |
2434 | } |
2435 | ||
2436 | ||
d4ea2aba | 2437 | #if 0 |
bd5635a1 RP |
2438 | /* Do the initial analisys of the F_IDX-th file descriptor. |
2439 | Allocates a partial symtab for it, and builds the list | |
2440 | of dependent files by recursion. LEV says at which level | |
2441 | of recursion we are called (to pretty up debug traces) */ | |
2442 | ||
2443 | static struct partial_symtab * | |
5f7b2142 ILT |
2444 | parse_fdr (f_idx, lev, objfile) |
2445 | int f_idx; | |
2446 | int lev; | |
2447 | struct objfile *objfile; | |
bd5635a1 | 2448 | { |
6ac14d25 PS |
2449 | const bfd_size_type external_rfd_size |
2450 | = ecoff_backend (cur_bfd)->external_rfd_size; | |
2451 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
2452 | = ecoff_backend (cur_bfd)->swap_rfd_in; | |
5f7b2142 ILT |
2453 | register FDR *fh; |
2454 | register struct partial_symtab *pst; | |
2455 | int s_idx, s_id0; | |
bd5635a1 | 2456 | |
6c2e7392 | 2457 | fh = ecoff_data (cur_bfd)->fdr + f_idx; |
5f7b2142 ILT |
2458 | |
2459 | /* Use this to indicate into which symtab this file was parsed */ | |
2460 | if (fh->ioptBase) | |
2461 | return (struct partial_symtab *) fh->ioptBase; | |
2462 | ||
2463 | /* Debuggability level */ | |
2464 | if (compare_glevel (max_glevel, fh->glevel) < 0) | |
2465 | max_glevel = fh->glevel; | |
2466 | ||
2467 | /* Make a new partial_symtab */ | |
6c2e7392 | 2468 | pst = new_psymtab (fdr_name (fh), objfile); |
5f7b2142 ILT |
2469 | if (fh->cpd == 0) |
2470 | { | |
2471 | pst->textlow = 0; | |
2472 | pst->texthigh = 0; | |
2473 | } | |
2474 | else | |
2475 | { | |
2476 | pst->textlow = fh->adr; | |
2477 | pst->texthigh = fh->cpd; /* To be fixed later */ | |
2478 | } | |
2479 | ||
2480 | /* Make everything point to everything. */ | |
2481 | FDR_IDX (pst) = f_idx; | |
2482 | fdr_to_pst[f_idx].pst = pst; | |
2483 | fh->ioptBase = (int) pst; | |
2484 | ||
2485 | /* Analyze its dependencies */ | |
2486 | if (fh->crfd <= 1) | |
2487 | return pst; | |
2488 | ||
2489 | s_id0 = 0; | |
2490 | if (fh->cpd == 0) | |
6c2e7392 | 2491 | { /* If there are no functions defined here ... */ |
5f7b2142 ILT |
2492 | /* ...then presumably a .h file: drop reverse depends .h->.c */ |
2493 | for (; s_id0 < fh->crfd; s_id0++) | |
2494 | { | |
6c2e7392 PS |
2495 | RFDT rh; |
2496 | ||
6ac14d25 PS |
2497 | (*swap_rfd_in) (cur_bfd, |
2498 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2499 | + (fh->rfdBase + s_id0) * external_rfd_size), | |
2500 | &rh); | |
6c2e7392 | 2501 | if (rh == f_idx) |
5f7b2142 ILT |
2502 | { |
2503 | s_id0++; /* Skip self-dependency */ | |
2504 | break; | |
2505 | } | |
bd5635a1 | 2506 | } |
5f7b2142 ILT |
2507 | } |
2508 | pst->number_of_dependencies = fh->crfd - s_id0; | |
2509 | pst->dependencies = ((struct partial_symtab **) | |
2510 | obstack_alloc (&objfile->psymbol_obstack, | |
2511 | (pst->number_of_dependencies | |
2512 | * sizeof (struct partial_symtab *)))); | |
2513 | for (s_idx = s_id0; s_idx < fh->crfd; s_idx++) | |
2514 | { | |
6c2e7392 PS |
2515 | RFDT rh; |
2516 | ||
6ac14d25 PS |
2517 | (*swap_rfd_in) (cur_bfd, |
2518 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2519 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
2520 | &rh); | |
6c2e7392 | 2521 | pst->dependencies[s_idx - s_id0] = parse_fdr (rh, lev + 1, objfile); |
5f7b2142 | 2522 | } |
bd5635a1 | 2523 | |
5f7b2142 | 2524 | return pst; |
bd5635a1 | 2525 | } |
5f7b2142 | 2526 | |
d4ea2aba | 2527 | #endif |
bd5635a1 | 2528 | |
5f7b2142 | 2529 | static char * |
c55e6167 | 2530 | mips_next_symbol_text () |
7e258d18 | 2531 | { |
6c2e7392 PS |
2532 | SYMR sh; |
2533 | ||
5f7b2142 | 2534 | cur_sdx++; |
6ac14d25 PS |
2535 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
2536 | (cur_bfd, | |
2537 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2538 | + ((cur_fdr->isymBase + cur_sdx) | |
2539 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
2540 | &sh); | |
6c2e7392 | 2541 | return ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
7e258d18 | 2542 | } |
bd5635a1 RP |
2543 | |
2544 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
2545 | for turning the partial symtab PST into a symtab, recurring | |
3eaebb75 SG |
2546 | first on all dependent psymtabs. The argument FILENAME is |
2547 | only passed so we can see in debug stack traces what file | |
817bc7b8 JG |
2548 | is being read. |
2549 | ||
2550 | This function has a split personality, based on whether the | |
2551 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
2552 | The flow of control and even the memory allocation differs. FIXME. */ | |
bd5635a1 | 2553 | |
e072c738 | 2554 | static void |
5f7b2142 | 2555 | psymtab_to_symtab_1 (pst, filename) |
7e258d18 PB |
2556 | struct partial_symtab *pst; |
2557 | char *filename; | |
bd5635a1 | 2558 | { |
6ac14d25 PS |
2559 | const bfd_size_type external_sym_size |
2560 | = ecoff_backend (cur_bfd)->external_sym_size; | |
2561 | const bfd_size_type external_pdr_size | |
2562 | = ecoff_backend (cur_bfd)->external_pdr_size; | |
2563 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2564 | = ecoff_backend (cur_bfd)->swap_sym_in; | |
2565 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
2566 | = ecoff_backend (cur_bfd)->swap_sym_out; | |
2567 | void (* const swap_pdr_in) PARAMS ((bfd *, PTR, PDR *)) | |
2568 | = ecoff_backend (cur_bfd)->swap_pdr_in; | |
5f7b2142 ILT |
2569 | int i; |
2570 | struct symtab *st; | |
2571 | FDR *fh; | |
2572 | struct linetable *lines; | |
7e258d18 | 2573 | |
5f7b2142 ILT |
2574 | if (pst->readin) |
2575 | return; | |
2576 | pst->readin = 1; | |
7e258d18 | 2577 | |
5f7b2142 ILT |
2578 | /* Read in all partial symbtabs on which this one is dependent. |
2579 | NOTE that we do have circular dependencies, sigh. We solved | |
2580 | that by setting pst->readin before this point. */ | |
817bc7b8 | 2581 | |
5f7b2142 ILT |
2582 | for (i = 0; i < pst->number_of_dependencies; i++) |
2583 | if (!pst->dependencies[i]->readin) | |
2584 | { | |
2585 | /* Inform about additional files to be read in. */ | |
2586 | if (info_verbose) | |
2587 | { | |
2588 | fputs_filtered (" ", stdout); | |
2589 | wrap_here (""); | |
2590 | fputs_filtered ("and ", stdout); | |
2591 | wrap_here (""); | |
2592 | printf_filtered ("%s...", | |
2593 | pst->dependencies[i]->filename); | |
2594 | wrap_here (""); /* Flush output */ | |
2595 | fflush (stdout); | |
2596 | } | |
2597 | /* We only pass the filename for debug purposes */ | |
2598 | psymtab_to_symtab_1 (pst->dependencies[i], | |
2599 | pst->dependencies[i]->filename); | |
2600 | } | |
817bc7b8 | 2601 | |
ac8cf67d PS |
2602 | /* Do nothing if this is a dummy psymtab. */ |
2603 | ||
2604 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
2605 | && pst->textlow == 0 && pst->texthigh == 0) | |
2606 | return; | |
2607 | ||
5f7b2142 | 2608 | /* Now read the symbols for this symtab */ |
817bc7b8 | 2609 | |
ac8cf67d | 2610 | cur_bfd = CUR_BFD (pst); |
5f7b2142 ILT |
2611 | current_objfile = pst->objfile; |
2612 | cur_fd = FDR_IDX (pst); | |
6c2e7392 | 2613 | fh = (cur_fd == -1) ? (FDR *) NULL : ecoff_data (cur_bfd)->fdr + cur_fd; |
5f7b2142 | 2614 | cur_fdr = fh; |
817bc7b8 | 2615 | |
5f7b2142 | 2616 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
6c2e7392 PS |
2617 | processing_gcc_compilation = 0; |
2618 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
5f7b2142 | 2619 | { |
6c2e7392 PS |
2620 | SYMR sh; |
2621 | ||
6ac14d25 PS |
2622 | (*swap_sym_in) (cur_bfd, |
2623 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2624 | + (fh->isymBase + 1) * external_sym_size), | |
2625 | &sh); | |
6c2e7392 PS |
2626 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2627 | stabs_symbol)) | |
2628 | { | |
2629 | /* We indicate that this is a GCC compilation so that certain | |
2630 | features will be enabled in stabsread/dbxread. */ | |
2631 | processing_gcc_compilation = 2; | |
2632 | } | |
2633 | } | |
817bc7b8 | 2634 | |
6c2e7392 PS |
2635 | if (processing_gcc_compilation != 0) |
2636 | { | |
6ac14d25 PS |
2637 | char *pdr_ptr; |
2638 | char *pdr_end; | |
6c2e7392 PS |
2639 | int first_pdr; |
2640 | unsigned long first_off; | |
9adb88b7 | 2641 | |
b5d4d6d7 | 2642 | /* This symbol table contains stabs-in-ecoff entries. */ |
dac4929a | 2643 | |
5f7b2142 | 2644 | /* Parse local symbols first */ |
817bc7b8 | 2645 | |
5f7b2142 ILT |
2646 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */ |
2647 | { | |
2648 | current_objfile = NULL; | |
2649 | return; | |
2650 | } | |
2651 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2652 | { | |
6c2e7392 PS |
2653 | SYMR sh; |
2654 | char *name; | |
2655 | CORE_ADDR valu; | |
2656 | ||
6ac14d25 PS |
2657 | (*swap_sym_in) (cur_bfd, |
2658 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2659 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2660 | &sh); | |
6c2e7392 PS |
2661 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
2662 | valu = sh.value; | |
6ac14d25 | 2663 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 | 2664 | { |
6ac14d25 | 2665 | int type_code = ECOFF_UNMARK_STAB (sh.index); |
5f7b2142 ILT |
2666 | process_one_symbol (type_code, 0, valu, name, |
2667 | pst->section_offsets, pst->objfile); | |
2668 | if (type_code == N_FUN) | |
2669 | { | |
2670 | /* Make up special symbol to contain | |
2671 | procedure specific info */ | |
2672 | struct mips_extra_func_info *e = | |
6c2e7392 PS |
2673 | ((struct mips_extra_func_info *) |
2674 | obstack_alloc (¤t_objfile->symbol_obstack, | |
2675 | sizeof (struct mips_extra_func_info))); | |
5f7b2142 ILT |
2676 | struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME); |
2677 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
2678 | SYMBOL_CLASS (s) = LOC_CONST; | |
2679 | SYMBOL_TYPE (s) = builtin_type_void; | |
2680 | SYMBOL_VALUE (s) = (int) e; | |
2681 | add_symbol_to_list (s, &local_symbols); | |
817bc7b8 JG |
2682 | } |
2683 | } | |
6c2e7392 | 2684 | else if (sh.st == stLabel && sh.index != indexNil) |
5f7b2142 ILT |
2685 | { |
2686 | /* Handle encoded stab line number. */ | |
6c2e7392 | 2687 | record_line (current_subfile, sh.index, valu); |
817bc7b8 | 2688 | } |
0b0d6c3f PS |
2689 | else if (sh.st == stProc || sh.st == stStaticProc || sh.st == stEnd) |
2690 | /* These are generated by gcc-2.x, do not complain */ | |
2691 | ; | |
5f7b2142 | 2692 | else |
6c2e7392 | 2693 | complain (&stab_unknown_complaint, name); |
817bc7b8 | 2694 | } |
0b0d6c3f | 2695 | st = end_symtab (pst->texthigh, 0, 0, pst->objfile, SECT_OFF_TEXT); |
5f7b2142 | 2696 | end_stabs (); |
817bc7b8 | 2697 | |
5f7b2142 ILT |
2698 | /* Sort the symbol table now, we are done adding symbols to it. |
2699 | We must do this before parse_procedure calls lookup_symbol. */ | |
2700 | sort_symtab_syms (st); | |
817bc7b8 | 2701 | |
5f7b2142 ILT |
2702 | /* This may not be necessary for stabs symtabs. FIXME. */ |
2703 | sort_blocks (st); | |
817bc7b8 | 2704 | |
6c2e7392 PS |
2705 | /* Fill in procedure info next. */ |
2706 | first_pdr = 1; | |
6ac14d25 PS |
2707 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2708 | + fh->ipdFirst * external_pdr_size); | |
2709 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
2710 | for (; pdr_ptr < pdr_end; pdr_ptr += external_pdr_size) | |
5f7b2142 | 2711 | { |
6c2e7392 PS |
2712 | PDR pr; |
2713 | ||
6ac14d25 | 2714 | (*swap_pdr_in) (cur_bfd, pdr_ptr, &pr); |
6c2e7392 PS |
2715 | if (first_pdr) |
2716 | { | |
2717 | first_off = pr.adr; | |
2718 | first_pdr = 0; | |
2719 | } | |
b5d4d6d7 | 2720 | parse_procedure (&pr, st, first_off); |
817bc7b8 | 2721 | } |
5f7b2142 ILT |
2722 | } |
2723 | else | |
2724 | { | |
6c2e7392 | 2725 | /* This symbol table contains ordinary ecoff entries. */ |
817bc7b8 | 2726 | |
5f7b2142 | 2727 | /* FIXME: doesn't use pst->section_offsets. */ |
dac4929a | 2728 | |
5f7b2142 ILT |
2729 | int f_max; |
2730 | int maxlines; | |
6c2e7392 | 2731 | EXTR *ext_ptr; |
85f0a848 | 2732 | |
5f7b2142 ILT |
2733 | /* How many symbols will we need */ |
2734 | /* FIXME, this does not count enum values. */ | |
2735 | f_max = pst->n_global_syms + pst->n_static_syms; | |
2736 | if (fh == 0) | |
2737 | { | |
2738 | maxlines = 0; | |
2739 | st = new_symtab ("unknown", f_max, 0, pst->objfile); | |
2740 | } | |
2741 | else | |
2742 | { | |
2743 | f_max += fh->csym + fh->cpd; | |
2744 | maxlines = 2 * fh->cline; | |
2745 | st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile); | |
817bc7b8 JG |
2746 | } |
2747 | ||
5f7b2142 | 2748 | lines = LINETABLE (st); |
6c2e7392 | 2749 | pending_list = PST_PRIVATE (pst)->pending_list; |
5f7b2142 ILT |
2750 | if (pending_list == 0) |
2751 | { | |
6c2e7392 PS |
2752 | pending_list = ((struct mips_pending **) |
2753 | xzalloc (ecoff_data (cur_bfd)->symbolic_header.ifdMax | |
2754 | * sizeof (struct mips_pending *))); | |
2755 | PST_PRIVATE (pst)->pending_list = pending_list; | |
817bc7b8 JG |
2756 | } |
2757 | ||
5f7b2142 ILT |
2758 | /* Get a new lexical context */ |
2759 | ||
2760 | push_parse_stack (); | |
2761 | top_stack->cur_st = st; | |
2762 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st), | |
2763 | STATIC_BLOCK); | |
2764 | BLOCK_START (top_stack->cur_block) = fh ? fh->adr : 0; | |
2765 | BLOCK_END (top_stack->cur_block) = 0; | |
2766 | top_stack->blocktype = stFile; | |
2767 | top_stack->maxsyms = 2 * f_max; | |
2768 | top_stack->cur_type = 0; | |
2769 | top_stack->procadr = 0; | |
2770 | top_stack->numargs = 0; | |
2771 | ||
2772 | if (fh) | |
2773 | { | |
6ac14d25 PS |
2774 | char *sym_ptr; |
2775 | char *sym_end; | |
5f7b2142 ILT |
2776 | |
2777 | /* Parse local symbols first */ | |
6ac14d25 PS |
2778 | sym_ptr = ((char *) ecoff_data (cur_bfd)->external_sym |
2779 | + fh->isymBase * external_sym_size); | |
2780 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
6c2e7392 | 2781 | while (sym_ptr < sym_end) |
5f7b2142 | 2782 | { |
6c2e7392 PS |
2783 | SYMR sh; |
2784 | int c; | |
2785 | ||
6ac14d25 | 2786 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); |
6c2e7392 PS |
2787 | c = parse_symbol (&sh, |
2788 | (ecoff_data (cur_bfd)->external_aux | |
2789 | + fh->iauxBase), | |
2790 | sym_ptr, fh->fBigendian); | |
2791 | /* FIXME: We must swap the modified symbol back out, | |
2792 | although we would rather not. See parse_symbol. */ | |
6ac14d25 PS |
2793 | (*swap_sym_out) (cur_bfd, &sh, sym_ptr); |
2794 | sym_ptr += c * external_sym_size; | |
7e258d18 | 2795 | } |
bd5635a1 | 2796 | |
6c2e7392 PS |
2797 | /* Linenumbers. At the end, check if we can save memory. |
2798 | parse_lines has to look ahead an arbitrary number of PDR | |
2799 | structures, so we swap them all first. */ | |
2800 | if (fh->cpd > 0) | |
5f7b2142 | 2801 | { |
6c2e7392 PS |
2802 | PDR *pr_block; |
2803 | struct cleanup *old_chain; | |
6ac14d25 PS |
2804 | char *pdr_ptr; |
2805 | char *pdr_end; | |
6c2e7392 PS |
2806 | PDR *pdr_in; |
2807 | PDR *pdr_in_end; | |
2808 | ||
2809 | pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR)); | |
2810 | ||
2811 | old_chain = make_cleanup (free, pr_block); | |
2812 | ||
6ac14d25 PS |
2813 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2814 | + fh->ipdFirst * external_pdr_size); | |
2815 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
6c2e7392 | 2816 | pdr_in = pr_block; |
6ac14d25 PS |
2817 | for (; |
2818 | pdr_ptr < pdr_end; | |
2819 | pdr_ptr += external_pdr_size, pdr_in++) | |
2820 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
6c2e7392 PS |
2821 | |
2822 | parse_lines (fh, pr_block, lines); | |
2823 | if (lines->nitems < fh->cline) | |
2824 | lines = shrink_linetable (lines); | |
2825 | ||
2826 | /* Fill in procedure info next. */ | |
2827 | pdr_in = pr_block; | |
2828 | pdr_in_end = pdr_in + fh->cpd; | |
2829 | for (; pdr_in < pdr_in_end; pdr_in++) | |
2830 | parse_procedure (pdr_in, 0, pr_block->adr); | |
2831 | ||
2832 | do_cleanups (old_chain); | |
817bc7b8 | 2833 | } |
ad142b8e | 2834 | } |
817bc7b8 | 2835 | |
5f7b2142 ILT |
2836 | LINETABLE (st) = lines; |
2837 | ||
2838 | /* .. and our share of externals. | |
2839 | XXX use the global list to speed up things here. how? | |
2840 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
2841 | top_stack->cur_st = st; | |
2842 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
2843 | GLOBAL_BLOCK); | |
2844 | top_stack->blocktype = stFile; | |
6c2e7392 PS |
2845 | top_stack->maxsyms = (ecoff_data (cur_bfd)->symbolic_header.isymMax |
2846 | + ecoff_data (cur_bfd)->symbolic_header.ipdMax | |
2847 | + ecoff_data (cur_bfd)->symbolic_header.iextMax); | |
5f7b2142 ILT |
2848 | |
2849 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
2850 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
6c2e7392 | 2851 | parse_external (ext_ptr, 1, fh->fBigendian); |
5f7b2142 ILT |
2852 | |
2853 | /* If there are undefined, tell the user */ | |
2854 | if (n_undef_symbols) | |
2855 | { | |
2856 | printf_filtered ("File %s contains %d unresolved references:", | |
2857 | st->filename, n_undef_symbols); | |
2858 | printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n", | |
2859 | n_undef_vars, n_undef_procs, n_undef_labels); | |
2860 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
bd5635a1 | 2861 | |
7e258d18 | 2862 | } |
5f7b2142 | 2863 | pop_parse_stack (); |
817bc7b8 | 2864 | |
5f7b2142 ILT |
2865 | /* Sort the symbol table now, we are done adding symbols to it.*/ |
2866 | sort_symtab_syms (st); | |
817bc7b8 | 2867 | |
5f7b2142 | 2868 | sort_blocks (st); |
7e258d18 | 2869 | } |
7e258d18 | 2870 | |
5f7b2142 ILT |
2871 | /* Now link the psymtab and the symtab. */ |
2872 | pst->symtab = st; | |
021959e2 | 2873 | |
5f7b2142 | 2874 | current_objfile = NULL; |
101f259c | 2875 | } |
bd5635a1 RP |
2876 | \f |
2877 | /* Ancillary parsing procedures. */ | |
2878 | ||
2879 | /* Lookup the type at relative index RN. Return it in TPP | |
2880 | if found and in any event come up with its name PNAME. | |
d747e0af MT |
2881 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). |
2882 | Return value says how many aux symbols we ate. */ | |
bd5635a1 | 2883 | |
d747e0af | 2884 | static int |
5f7b2142 | 2885 | cross_ref (ax, tpp, type_code, pname, bigend) |
d747e0af | 2886 | union aux_ext *ax; |
7e258d18 | 2887 | struct type **tpp; |
5f7b2142 | 2888 | enum type_code type_code; /* Use to alloc new type if none is found. */ |
7e258d18 | 2889 | char **pname; |
d747e0af | 2890 | int bigend; |
bd5635a1 | 2891 | { |
5f7b2142 | 2892 | RNDXR rn[1]; |
6ac14d25 | 2893 | unsigned int rf; |
5f7b2142 | 2894 | int result = 1; |
bd5635a1 | 2895 | |
6c2e7392 | 2896 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, rn); |
5f7b2142 ILT |
2897 | |
2898 | /* Escape index means 'the next one' */ | |
2899 | if (rn->rfd == 0xfff) | |
2900 | { | |
2901 | result++; | |
2902 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
2903 | } | |
2904 | else | |
2905 | { | |
2906 | rf = rn->rfd; | |
2907 | } | |
2908 | ||
2909 | if (rf == -1) | |
2910 | { | |
2911 | /* Ooops */ | |
2912 | *pname = "<undefined>"; | |
2913 | } | |
2914 | else | |
2915 | { | |
2916 | /* | |
2917 | * Find the relative file descriptor and the symbol in it | |
2918 | */ | |
2919 | FDR *fh = get_rfd (cur_fd, rf); | |
6ac14d25 | 2920 | char *esh; |
6c2e7392 | 2921 | SYMR sh; |
5f7b2142 ILT |
2922 | struct type *t; |
2923 | ||
6ac14d25 PS |
2924 | if (rn->index >= fh->csym) |
2925 | { | |
2926 | /* File indirect entry is corrupt. */ | |
2927 | *tpp = (struct type *)NULL; | |
2928 | *pname = "<illegal>"; | |
2929 | complain (&bad_rfd_entry_complaint, | |
2930 | fh - ecoff_data (cur_bfd)->fdr, rn->index); | |
2931 | return result; | |
2932 | } | |
2933 | ||
6c2e7392 PS |
2934 | /* If we have processed this symbol then we left a forwarding |
2935 | pointer to the corresponding GDB symbol. If not, we`ll put | |
2936 | it in a list of pending symbols, to be processed later when | |
2937 | the file will be. In any event, we collect the name for the | |
2938 | type here. Which is why we made a first pass at strings. */ | |
2939 | ||
6ac14d25 PS |
2940 | esh = ((char *) ecoff_data (cur_bfd)->external_sym |
2941 | + ((fh->isymBase + rn->index) | |
2942 | * ecoff_backend (cur_bfd)->external_sym_size)); | |
2943 | (*ecoff_backend (cur_bfd)->swap_sym_in) (cur_bfd, esh, &sh); | |
5f7b2142 ILT |
2944 | |
2945 | /* Careful, we might be looking at .o files */ | |
6c2e7392 PS |
2946 | if (sh.iss == 0) |
2947 | *pname = "<undefined>"; | |
28d14fd8 JK |
2948 | else if (rn->rfd == 0xfff && rn->index == 0) |
2949 | /* For structs, unions and enums, rn->rfd is 0xfff and the index | |
2950 | is a relative symbol number for the type, but an index of 0 | |
2951 | seems to mean that we don't know. This is said to fix a problem | |
2952 | with "info func opendir" on an SGI showing | |
2953 | "struct BSDopendir.c *BSDopendir();". */ | |
6ac14d25 PS |
2954 | { |
2955 | *tpp = (struct type *)NULL; | |
2956 | *pname = "<unknown>"; | |
2957 | return result; | |
2958 | } | |
2959 | else if ((sh.st != stBlock && sh.st != stTypedef && sh.st != stParsed) | |
2960 | || sh.sc != scInfo) | |
2961 | { | |
2962 | /* File indirect entry is corrupt. */ | |
2963 | *tpp = (struct type *)NULL; | |
2964 | *pname = "<illegal>"; | |
2965 | complain (&bad_rfd_entry_complaint, | |
2966 | fh - ecoff_data (cur_bfd)->fdr, rn->index); | |
2967 | return result; | |
2968 | } | |
6c2e7392 PS |
2969 | else |
2970 | *pname = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; | |
5f7b2142 ILT |
2971 | |
2972 | /* Have we parsed it ? */ | |
6c2e7392 | 2973 | if (sh.value != 0 && sh.st == stParsed) |
5f7b2142 | 2974 | { |
6c2e7392 | 2975 | t = (struct type *) sh.value; |
5f7b2142 | 2976 | *tpp = t; |
bd5635a1 | 2977 | } |
5f7b2142 ILT |
2978 | else |
2979 | { | |
2980 | /* Avoid duplicates */ | |
6c2e7392 | 2981 | struct mips_pending *p = is_pending_symbol (fh, esh); |
5f7b2142 ILT |
2982 | if (p) |
2983 | *tpp = p->t; | |
2984 | else | |
2985 | { | |
2986 | *tpp = init_type (type_code, 0, 0, (char *) NULL, | |
2987 | (struct objfile *) NULL); | |
6c2e7392 | 2988 | add_pending (fh, esh, *tpp); |
5f7b2142 ILT |
2989 | } |
2990 | } | |
2991 | } | |
3eaebb75 | 2992 | |
5f7b2142 ILT |
2993 | /* We used one auxent normally, two if we got a "next one" rf. */ |
2994 | return result; | |
bd5635a1 RP |
2995 | } |
2996 | ||
2997 | ||
2998 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
2999 | keeping the symtab sorted */ | |
3000 | ||
3001 | static struct symbol * | |
3002 | mylookup_symbol (name, block, namespace, class) | |
3003 | char *name; | |
3004 | register struct block *block; | |
3005 | enum namespace namespace; | |
3006 | enum address_class class; | |
3007 | { | |
5f7b2142 ILT |
3008 | register int bot, top, inc; |
3009 | register struct symbol *sym; | |
3010 | ||
3011 | bot = 0; | |
3012 | top = BLOCK_NSYMS (block); | |
3013 | inc = name[0]; | |
3014 | while (bot < top) | |
3015 | { | |
3016 | sym = BLOCK_SYM (block, bot); | |
3017 | if (SYMBOL_NAME (sym)[0] == inc | |
3018 | && SYMBOL_NAMESPACE (sym) == namespace | |
3019 | && SYMBOL_CLASS (sym) == class | |
4fb0ff3b | 3020 | && strcmp (SYMBOL_NAME (sym), name) == 0) |
5f7b2142 ILT |
3021 | return sym; |
3022 | bot++; | |
3023 | } | |
3024 | block = BLOCK_SUPERBLOCK (block); | |
3025 | if (block) | |
3026 | return mylookup_symbol (name, block, namespace, class); | |
3027 | return 0; | |
bd5635a1 RP |
3028 | } |
3029 | ||
3030 | ||
3eaebb75 SG |
3031 | /* Add a new symbol S to a block B. |
3032 | Infrequently, we will need to reallocate the block to make it bigger. | |
3033 | We only detect this case when adding to top_stack->cur_block, since | |
3034 | that's the only time we know how big the block is. FIXME. */ | |
bd5635a1 | 3035 | |
3eaebb75 | 3036 | static void |
5f7b2142 ILT |
3037 | add_symbol (s, b) |
3038 | struct symbol *s; | |
3039 | struct block *b; | |
bd5635a1 | 3040 | { |
5f7b2142 ILT |
3041 | int nsyms = BLOCK_NSYMS (b)++; |
3042 | struct block *origb; | |
3043 | struct parse_stack *stackp; | |
3044 | ||
3045 | if (b == top_stack->cur_block && | |
3046 | nsyms >= top_stack->maxsyms) | |
3047 | { | |
3048 | complain (&block_overflow_complaint, SYMBOL_NAME (s)); | |
3049 | /* In this case shrink_block is actually grow_block, since | |
3eaebb75 | 3050 | BLOCK_NSYMS(b) is larger than its current size. */ |
5f7b2142 ILT |
3051 | origb = b; |
3052 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
3053 | ||
3054 | /* Now run through the stack replacing pointers to the | |
3055 | original block. shrink_block has already done this | |
3056 | for the blockvector and BLOCK_FUNCTION. */ | |
3057 | for (stackp = top_stack; stackp; stackp = stackp->next) | |
3058 | { | |
3059 | if (stackp->cur_block == origb) | |
3060 | { | |
3061 | stackp->cur_block = b; | |
3062 | stackp->maxsyms = BLOCK_NSYMS (b); | |
3063 | } | |
3eaebb75 | 3064 | } |
5f7b2142 ILT |
3065 | } |
3066 | BLOCK_SYM (b, nsyms) = s; | |
bd5635a1 RP |
3067 | } |
3068 | ||
3069 | /* Add a new block B to a symtab S */ | |
3070 | ||
3eaebb75 | 3071 | static void |
5f7b2142 ILT |
3072 | add_block (b, s) |
3073 | struct block *b; | |
3074 | struct symtab *s; | |
bd5635a1 | 3075 | { |
5f7b2142 | 3076 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3077 | |
5f7b2142 | 3078 | bv = (struct blockvector *) xrealloc ((PTR) bv, |
6c2e7392 PS |
3079 | (sizeof (struct blockvector) |
3080 | + BLOCKVECTOR_NBLOCKS (bv) | |
3081 | * sizeof (bv->block))); | |
5f7b2142 ILT |
3082 | if (bv != BLOCKVECTOR (s)) |
3083 | BLOCKVECTOR (s) = bv; | |
bd5635a1 | 3084 | |
5f7b2142 | 3085 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; |
bd5635a1 RP |
3086 | } |
3087 | ||
3088 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
3089 | MIPS' linenumber encoding might need more than one byte | |
e157305c PS |
3090 | to describe it, LAST is used to detect these continuation lines. |
3091 | ||
3092 | Combining lines with the same line number seems like a bad idea. | |
3093 | E.g: There could be a line number entry with the same line number after the | |
3094 | prologue and GDB should not ignore it (this is a better way to find | |
3095 | a prologue than mips_skip_prologue). | |
3096 | But due to the compressed line table format there are line number entries | |
3097 | for the same line which are needed to bridge the gap to the next | |
3098 | line number entry. These entries have a bogus address info with them | |
3099 | and we are unable to tell them from intended duplicate line number | |
3100 | entries. | |
3101 | This is another reason why -ggdb debugging format is preferable. */ | |
bd5635a1 | 3102 | |
3eaebb75 | 3103 | static int |
5f7b2142 ILT |
3104 | add_line (lt, lineno, adr, last) |
3105 | struct linetable *lt; | |
3106 | int lineno; | |
3107 | CORE_ADDR adr; | |
3108 | int last; | |
bd5635a1 | 3109 | { |
5f7b2142 ILT |
3110 | if (last == 0) |
3111 | last = -2; /* make sure we record first line */ | |
bd5635a1 | 3112 | |
5f7b2142 ILT |
3113 | if (last == lineno) /* skip continuation lines */ |
3114 | return lineno; | |
bd5635a1 | 3115 | |
5f7b2142 ILT |
3116 | lt->item[lt->nitems].line = lineno; |
3117 | lt->item[lt->nitems++].pc = adr << 2; | |
3118 | return lineno; | |
bd5635a1 | 3119 | } |
bd5635a1 | 3120 | \f |
84ffdec2 | 3121 | /* Sorting and reordering procedures */ |
bd5635a1 | 3122 | |
bd5635a1 RP |
3123 | /* Blocks with a smaller low bound should come first */ |
3124 | ||
84ffdec2 | 3125 | static int |
5f7b2142 | 3126 | compare_blocks (arg1, arg2) |
391ca579 | 3127 | const void *arg1, *arg2; |
bd5635a1 | 3128 | { |
5f7b2142 ILT |
3129 | register int addr_diff; |
3130 | struct block **b1 = (struct block **) arg1; | |
3131 | struct block **b2 = (struct block **) arg2; | |
3132 | ||
3133 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
3134 | if (addr_diff == 0) | |
5f5341a7 | 3135 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); |
5f7b2142 | 3136 | return addr_diff; |
bd5635a1 RP |
3137 | } |
3138 | ||
bd5635a1 RP |
3139 | /* Sort the blocks of a symtab S. |
3140 | Reorder the blocks in the blockvector by code-address, | |
3141 | as required by some MI search routines */ | |
3142 | ||
e072c738 | 3143 | static void |
5f7b2142 ILT |
3144 | sort_blocks (s) |
3145 | struct symtab *s; | |
bd5635a1 | 3146 | { |
5f7b2142 | 3147 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3148 | |
5f7b2142 ILT |
3149 | if (BLOCKVECTOR_NBLOCKS (bv) <= 2) |
3150 | { | |
3151 | /* Cosmetic */ | |
3152 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
3153 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
3154 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
3155 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
3156 | return; | |
3157 | } | |
3158 | /* | |
3159 | * This is very unfortunate: normally all functions are compiled in | |
3160 | * the order they are found, but if the file is compiled -O3 things | |
3161 | * are very different. It would be nice to find a reliable test | |
3162 | * to detect -O3 images in advance. | |
3163 | */ | |
3164 | if (BLOCKVECTOR_NBLOCKS (bv) > 3) | |
3165 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), | |
3166 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
3167 | sizeof (struct block *), | |
3168 | compare_blocks); | |
3169 | ||
3170 | { | |
3171 | register CORE_ADDR high = 0; | |
3172 | register int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
3173 | ||
3174 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
3175 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
3176 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
3177 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
3178 | } | |
3179 | ||
3180 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
3181 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
3182 | ||
3183 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3184 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3185 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3186 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 | 3187 | } |
bd5635a1 | 3188 | \f |
5f7b2142 | 3189 | |
bd5635a1 RP |
3190 | /* Constructor/restructor/destructor procedures */ |
3191 | ||
3192 | /* Allocate a new symtab for NAME. Needs an estimate of how many symbols | |
3193 | MAXSYMS and linenumbers MAXLINES we'll put in it */ | |
3194 | ||
4ad1963e | 3195 | static struct symtab * |
5f7b2142 ILT |
3196 | new_symtab (name, maxsyms, maxlines, objfile) |
3197 | char *name; | |
3198 | int maxsyms; | |
3199 | int maxlines; | |
3200 | struct objfile *objfile; | |
bd5635a1 | 3201 | { |
021959e2 | 3202 | struct symtab *s = allocate_symtab (name, objfile); |
bd5635a1 | 3203 | |
5f7b2142 | 3204 | LINETABLE (s) = new_linetable (maxlines); |
bd5635a1 | 3205 | |
021959e2 | 3206 | /* All symtabs must have at least two blocks */ |
5f7b2142 ILT |
3207 | BLOCKVECTOR (s) = new_bvect (2); |
3208 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms); | |
3209 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms); | |
3210 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) = | |
3211 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
bd5635a1 | 3212 | |
021959e2 | 3213 | s->free_code = free_linetable; |
bd5635a1 | 3214 | |
021959e2 | 3215 | return (s); |
bd5635a1 RP |
3216 | } |
3217 | ||
bd5635a1 RP |
3218 | /* Allocate a new partial_symtab NAME */ |
3219 | ||
3220 | static struct partial_symtab * | |
5f7b2142 ILT |
3221 | new_psymtab (name, objfile) |
3222 | char *name; | |
3223 | struct objfile *objfile; | |
bd5635a1 | 3224 | { |
021959e2 | 3225 | struct partial_symtab *psymtab; |
817bc7b8 | 3226 | |
6c2e7392 | 3227 | psymtab = allocate_psymtab (name, objfile); |
817bc7b8 | 3228 | |
021959e2 | 3229 | /* Keep a backpointer to the file's symbols */ |
bd5635a1 | 3230 | |
5f7b2142 ILT |
3231 | psymtab->read_symtab_private = ((char *) |
3232 | obstack_alloc (&objfile->psymbol_obstack, | |
3233 | sizeof (struct symloc))); | |
6c2e7392 PS |
3234 | memset ((PTR) psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
3235 | CUR_BFD (psymtab) = cur_bfd; | |
817bc7b8 | 3236 | |
021959e2 JG |
3237 | /* The way to turn this into a symtab is to call... */ |
3238 | psymtab->read_symtab = mipscoff_psymtab_to_symtab; | |
3239 | return (psymtab); | |
bd5635a1 RP |
3240 | } |
3241 | ||
3242 | ||
84ffdec2 | 3243 | /* Allocate a linetable array of the given SIZE. Since the struct |
817bc7b8 | 3244 | already includes one item, we subtract one when calculating the |
84ffdec2 | 3245 | proper size to allocate. */ |
bd5635a1 | 3246 | |
7e258d18 | 3247 | static struct linetable * |
5f7b2142 ILT |
3248 | new_linetable (size) |
3249 | int size; | |
bd5635a1 | 3250 | { |
5f7b2142 | 3251 | struct linetable *l; |
bd5635a1 | 3252 | |
5f7b2142 ILT |
3253 | size = (size - 1) * sizeof (l->item) + sizeof (struct linetable); |
3254 | l = (struct linetable *) xmalloc (size); | |
3255 | l->nitems = 0; | |
3256 | return l; | |
bd5635a1 RP |
3257 | } |
3258 | ||
3259 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, | |
84ffdec2 JG |
3260 | I am not so sure about the 3.4 ones. |
3261 | ||
3262 | Since the struct linetable already includes one item, we subtract one when | |
3263 | calculating the proper size to allocate. */ | |
bd5635a1 | 3264 | |
7e258d18 | 3265 | static struct linetable * |
5f7b2142 ILT |
3266 | shrink_linetable (lt) |
3267 | struct linetable *lt; | |
bd5635a1 | 3268 | { |
bd5635a1 | 3269 | |
5f7b2142 | 3270 | return (struct linetable *) xrealloc ((PTR) lt, |
6c2e7392 PS |
3271 | (sizeof (struct linetable) |
3272 | + ((lt->nitems - 1) | |
3273 | * sizeof (lt->item)))); | |
bd5635a1 RP |
3274 | } |
3275 | ||
3276 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ | |
3277 | ||
4ad1963e | 3278 | static struct blockvector * |
5f7b2142 ILT |
3279 | new_bvect (nblocks) |
3280 | int nblocks; | |
bd5635a1 | 3281 | { |
5f7b2142 ILT |
3282 | struct blockvector *bv; |
3283 | int size; | |
bd5635a1 | 3284 | |
5f7b2142 ILT |
3285 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); |
3286 | bv = (struct blockvector *) xzalloc (size); | |
bd5635a1 | 3287 | |
5f7b2142 | 3288 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; |
bd5635a1 | 3289 | |
5f7b2142 | 3290 | return bv; |
bd5635a1 RP |
3291 | } |
3292 | ||
3293 | /* Allocate and zero a new block of MAXSYMS symbols */ | |
3294 | ||
4ad1963e | 3295 | static struct block * |
5f7b2142 ILT |
3296 | new_block (maxsyms) |
3297 | int maxsyms; | |
bd5635a1 | 3298 | { |
5f7b2142 | 3299 | int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *); |
bd5635a1 | 3300 | |
5f7b2142 | 3301 | return (struct block *) xzalloc (size); |
bd5635a1 RP |
3302 | } |
3303 | ||
3eaebb75 SG |
3304 | /* Ooops, too big. Shrink block B in symtab S to its minimal size. |
3305 | Shrink_block can also be used by add_symbol to grow a block. */ | |
bd5635a1 RP |
3306 | |
3307 | static struct block * | |
5f7b2142 ILT |
3308 | shrink_block (b, s) |
3309 | struct block *b; | |
3310 | struct symtab *s; | |
bd5635a1 | 3311 | { |
5f7b2142 ILT |
3312 | struct block *new; |
3313 | struct blockvector *bv = BLOCKVECTOR (s); | |
3314 | int i; | |
bd5635a1 | 3315 | |
5f7b2142 | 3316 | /* Just reallocate it and fix references to the old one */ |
bd5635a1 | 3317 | |
6c2e7392 PS |
3318 | new = (struct block *) xrealloc ((PTR) b, |
3319 | (sizeof (struct block) | |
3320 | + ((BLOCK_NSYMS (b) - 1) | |
3321 | * sizeof (struct symbol *)))); | |
bd5635a1 | 3322 | |
5f7b2142 | 3323 | /* Should chase pointers to old one. Fortunately, that`s just |
bd5635a1 | 3324 | the block`s function and inferior blocks */ |
5f7b2142 ILT |
3325 | if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b) |
3326 | SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new; | |
3327 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
3328 | if (BLOCKVECTOR_BLOCK (bv, i) == b) | |
3329 | BLOCKVECTOR_BLOCK (bv, i) = new; | |
3330 | else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b) | |
3331 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new; | |
3332 | return new; | |
bd5635a1 RP |
3333 | } |
3334 | ||
3335 | /* Create a new symbol with printname NAME */ | |
3336 | ||
4ad1963e | 3337 | static struct symbol * |
5f7b2142 ILT |
3338 | new_symbol (name) |
3339 | char *name; | |
bd5635a1 | 3340 | { |
6c2e7392 PS |
3341 | struct symbol *s = ((struct symbol *) |
3342 | obstack_alloc (¤t_objfile->symbol_obstack, | |
3343 | sizeof (struct symbol))); | |
bd5635a1 | 3344 | |
5f7b2142 ILT |
3345 | memset ((PTR) s, 0, sizeof (*s)); |
3346 | SYMBOL_NAME (s) = name; | |
3347 | return s; | |
bd5635a1 RP |
3348 | } |
3349 | ||
3350 | /* Create a new type with printname NAME */ | |
3351 | ||
4ad1963e | 3352 | static struct type * |
5f7b2142 ILT |
3353 | new_type (name) |
3354 | char *name; | |
bd5635a1 | 3355 | { |
5f7b2142 | 3356 | struct type *t; |
bd5635a1 | 3357 | |
5f7b2142 ILT |
3358 | t = alloc_type (current_objfile); |
3359 | TYPE_NAME (t) = name; | |
6c2e7392 | 3360 | TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default; |
5f7b2142 | 3361 | return t; |
bd5635a1 | 3362 | } |
bd5635a1 | 3363 | \f |
5f7b2142 | 3364 | |
bd5635a1 RP |
3365 | /* Things used for calling functions in the inferior. |
3366 | These functions are exported to our companion | |
7e258d18 | 3367 | mips-tdep.c file and are here because they play |
bd5635a1 RP |
3368 | with the symbol-table explicitly. */ |
3369 | ||
bd5635a1 RP |
3370 | /* Sigtramp: make sure we have all the necessary information |
3371 | about the signal trampoline code. Since the official code | |
3372 | from MIPS does not do so, we make up that information ourselves. | |
3373 | If they fix the library (unlikely) this code will neutralize itself. */ | |
3374 | ||
d747e0af | 3375 | static void |
5f7b2142 | 3376 | fixup_sigtramp () |
bd5635a1 | 3377 | { |
5f7b2142 ILT |
3378 | struct symbol *s; |
3379 | struct symtab *st; | |
3380 | struct block *b, *b0; | |
bd5635a1 | 3381 | |
5f7b2142 | 3382 | sigtramp_address = -1; |
bd5635a1 | 3383 | |
7cf92dd2 PS |
3384 | /* We have to handle the following cases here: |
3385 | a) The Mips library has a sigtramp label within sigvec. | |
3386 | b) Irix has a _sigtramp which we want to use, but it also has sigvec. */ | |
5f7b2142 | 3387 | s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL); |
7cf92dd2 | 3388 | if (s != 0) |
5f7b2142 ILT |
3389 | { |
3390 | b0 = SYMBOL_BLOCK_VALUE (s); | |
5f7b2142 ILT |
3391 | s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL); |
3392 | } | |
7cf92dd2 PS |
3393 | if (s == 0) |
3394 | { | |
3395 | /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */ | |
3396 | s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL); | |
3397 | } | |
4ad1963e | 3398 | |
5f7b2142 ILT |
3399 | /* But maybe this program uses its own version of sigvec */ |
3400 | if (s == 0) | |
3401 | return; | |
bd5635a1 | 3402 | |
5f7b2142 ILT |
3403 | /* Did we or MIPSco fix the library ? */ |
3404 | if (SYMBOL_CLASS (s) == LOC_BLOCK) | |
3405 | { | |
3406 | sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s)); | |
3407 | sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s)); | |
3408 | return; | |
3409 | } | |
bd5635a1 | 3410 | |
5f7b2142 ILT |
3411 | sigtramp_address = SYMBOL_VALUE (s); |
3412 | sigtramp_end = sigtramp_address + 0x88; /* black magic */ | |
3413 | ||
3414 | /* But what symtab does it live in ? */ | |
3415 | st = find_pc_symtab (SYMBOL_VALUE (s)); | |
3416 | ||
3417 | /* | |
3418 | * Ok, there goes the fix: turn it into a procedure, with all the | |
3419 | * needed info. Note we make it a nested procedure of sigvec, | |
3420 | * which is the way the (assembly) code is actually written. | |
3421 | */ | |
3422 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
3423 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
3424 | SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL, | |
3425 | (struct objfile *) NULL); | |
3426 | TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = builtin_type_void; | |
3427 | ||
3428 | /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */ | |
3429 | b = new_block (1); | |
3430 | SYMBOL_BLOCK_VALUE (s) = b; | |
3431 | BLOCK_START (b) = sigtramp_address; | |
3432 | BLOCK_END (b) = sigtramp_end; | |
3433 | BLOCK_FUNCTION (b) = s; | |
3434 | BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0); | |
3435 | add_block (b, st); | |
3436 | sort_blocks (st); | |
3437 | ||
3438 | /* Make a MIPS_EFI_SYMBOL_NAME entry for it */ | |
3439 | { | |
3440 | struct mips_extra_func_info *e = | |
3441 | ((struct mips_extra_func_info *) | |
3442 | xzalloc (sizeof (struct mips_extra_func_info))); | |
3443 | ||
3444 | e->numargs = 0; /* the kernel thinks otherwise */ | |
3445 | /* align_longword(sigcontext + SIGFRAME) */ | |
3446 | e->pdr.frameoffset = 0x150; | |
3447 | e->pdr.framereg = SP_REGNUM; | |
e157305c PS |
3448 | /* read_next_frame_reg provides the true pc at the time of signal */ |
3449 | e->pdr.pcreg = PC_REGNUM; | |
5f7b2142 ILT |
3450 | e->pdr.regmask = -2; |
3451 | e->pdr.regoffset = -(41 * sizeof (int)); | |
3452 | e->pdr.fregmask = -1; | |
e157305c | 3453 | e->pdr.fregoffset = -(7 * sizeof (int)); |
5f7b2142 | 3454 | e->pdr.isym = (long) s; |
579f0258 | 3455 | e->pdr.adr = sigtramp_address; |
5f7b2142 ILT |
3456 | |
3457 | current_objfile = st->objfile; /* Keep new_symbol happy */ | |
3458 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
3459 | SYMBOL_VALUE (s) = (int) e; | |
3460 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
3461 | SYMBOL_CLASS (s) = LOC_CONST; | |
3462 | SYMBOL_TYPE (s) = builtin_type_void; | |
3463 | current_objfile = NULL; | |
3464 | } | |
bd5635a1 | 3465 | |
5f7b2142 | 3466 | BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s; |
bd5635a1 | 3467 | } |
dac4929a SG |
3468 | |
3469 | ||
3470 | /* Fake up identical offsets for all sections. */ | |
3471 | ||
3472 | struct section_offsets * | |
3473 | mipscoff_symfile_offsets (objfile, addr) | |
3474 | struct objfile *objfile; | |
3475 | CORE_ADDR addr; | |
3476 | { | |
3477 | struct section_offsets *section_offsets; | |
3478 | int i; | |
3479 | ||
5f7b2142 ILT |
3480 | section_offsets = ((struct section_offsets *) |
3481 | obstack_alloc (&objfile->psymbol_obstack, | |
3482 | (sizeof (struct section_offsets) | |
3483 | + (sizeof (section_offsets->offsets) | |
3484 | * (SECT_OFF_MAX - 1))))); | |
dac4929a SG |
3485 | |
3486 | for (i = 0; i < SECT_OFF_MAX; i++) | |
3487 | ANOFFSET (section_offsets, i) = addr; | |
3488 | ||
3489 | return section_offsets; | |
3490 | } | |
bd5635a1 RP |
3491 | \f |
3492 | /* Initialization */ | |
3493 | ||
80d68b1d FF |
3494 | static struct sym_fns ecoff_sym_fns = |
3495 | { | |
5f7b2142 ILT |
3496 | "ecoff", /* sym_name: name or name prefix of BFD target type */ |
3497 | 5, /* sym_namelen: number of significant sym_name chars */ | |
3498 | mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */ | |
3499 | mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */ | |
3500 | mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */ | |
3501 | mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */ | |
3502 | mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */ | |
3503 | NULL /* next: pointer to next struct sym_fns */ | |
80d68b1d FF |
3504 | }; |
3505 | ||
bd5635a1 | 3506 | |
4ad1963e | 3507 | void |
bd5635a1 RP |
3508 | _initialize_mipsread () |
3509 | { | |
5f7b2142 ILT |
3510 | add_symtab_fns (&ecoff_sym_fns); |
3511 | ||
3512 | /* Missing basic types */ | |
3513 | ||
3514 | builtin_type_string = | |
3515 | init_type (TYPE_CODE_STRING, | |
3516 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3517 | 0, "string", | |
3518 | (struct objfile *) NULL); | |
3519 | builtin_type_complex = | |
3520 | init_type (TYPE_CODE_FLT, | |
3521 | TARGET_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3522 | 0, "complex", | |
3523 | (struct objfile *) NULL); | |
3524 | builtin_type_double_complex = | |
3525 | init_type (TYPE_CODE_FLT, | |
3526 | TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3527 | 0, "double complex", | |
3528 | (struct objfile *) NULL); | |
3529 | builtin_type_fixed_dec = | |
3530 | init_type (TYPE_CODE_INT, | |
3531 | TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3532 | 0, "fixed decimal", | |
3533 | (struct objfile *) NULL); | |
3534 | builtin_type_float_dec = | |
3535 | init_type (TYPE_CODE_FLT, | |
3536 | TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3537 | 0, "floating decimal", | |
3538 | (struct objfile *) NULL); | |
bd5635a1 | 3539 | } |