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 | |
ac8cf67d PS |
73 | #endif |
74 | ||
817bc7b8 JG |
75 | #ifdef USG |
76 | #include <sys/types.h> | |
817bc7b8 JG |
77 | #endif |
78 | ||
7d9884b9 JG |
79 | #include <sys/param.h> |
80 | #include <sys/file.h> | |
81 | #include <sys/stat.h> | |
85f0a848 | 82 | #include <string.h> |
fa0bcaa3 | 83 | |
dac4929a SG |
84 | #include "gdb-stabs.h" |
85 | ||
6c2e7392 PS |
86 | #include "bfd.h" |
87 | ||
88 | #include "coff/internal.h" | |
6ac14d25 | 89 | #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */ |
e10a3052 | 90 | |
6c2e7392 PS |
91 | /* FIXME: coff/internal.h and aout/aout64.h both define N_ABS. We |
92 | want the definition from aout/aout64.h. */ | |
93 | #undef N_ABS | |
6c2e7392 PS |
94 | |
95 | #include "libaout.h" /* Private BFD a.out information. */ | |
7e258d18 | 96 | #include "aout/aout64.h" |
817bc7b8 | 97 | #include "aout/stab_gnu.h" /* STABS information */ |
6c2e7392 PS |
98 | |
99 | /* FIXME: libcoff.h and libaout.h both define a couple of macros. We | |
100 | don't use them. */ | |
101 | #undef exec_hdr | |
102 | #undef obj_sym_filepos | |
103 | ||
104 | #include "libcoff.h" /* Private BFD COFF information. */ | |
105 | #include "libecoff.h" /* Private BFD ECOFF information. */ | |
106 | ||
85f0a848 FF |
107 | #include "expression.h" |
108 | #include "language.h" /* Needed inside partial-stab.h */ | |
bd5635a1 | 109 | |
85999c05 PS |
110 | /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */ |
111 | #ifndef ECOFF_REG_TO_REGNUM | |
112 | #define ECOFF_REG_TO_REGNUM(num) (num) | |
113 | #endif | |
114 | ||
e7e02420 PS |
115 | /* Information is passed among various mipsread routines for accessing |
116 | symbol files. A pointer to this structure is kept in the sym_private | |
117 | field of the objfile struct. */ | |
118 | ||
119 | struct ecoff_symfile_info { | |
120 | struct mips_pending **pending_list; | |
121 | }; | |
122 | #define ECOFF_SYMFILE_INFO(o) ((struct ecoff_symfile_info *)((o)->sym_private)) | |
123 | #define ECOFF_PENDING_LIST(o) (ECOFF_SYMFILE_INFO(o)->pending_list) | |
124 | ||
125 | ||
6c2e7392 PS |
126 | /* Each partial symbol table entry contains a pointer to private data |
127 | for the read_symtab() function to use when expanding a partial | |
128 | symbol table entry to a full symbol table entry. | |
4a35d6e9 | 129 | |
6c2e7392 PS |
130 | For mipsread this structure contains the index of the FDR that this |
131 | psymtab represents and a pointer to the BFD that the psymtab was | |
132 | created from. */ | |
4a35d6e9 | 133 | |
d4ea2aba PB |
134 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) |
135 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
6c2e7392 | 136 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) |
4a35d6e9 | 137 | |
5f7b2142 ILT |
138 | struct symloc |
139 | { | |
4a35d6e9 | 140 | int fdr_idx; |
6c2e7392 PS |
141 | bfd *cur_bfd; |
142 | EXTR *extern_tab; /* Pointer to external symbols for this file. */ | |
143 | int extern_count; /* Size of extern_tab. */ | |
cbba020f | 144 | enum language pst_language; |
4a35d6e9 FF |
145 | }; |
146 | ||
bd5635a1 RP |
147 | /* Things we import explicitly from other modules */ |
148 | ||
5f7b2142 | 149 | extern int info_verbose; |
bd5635a1 | 150 | |
3eaebb75 | 151 | /* Various complaints about symbol reading that don't abort the process */ |
817bc7b8 JG |
152 | |
153 | struct complaint bad_file_number_complaint = | |
5f7b2142 | 154 | {"bad file number %d", 0, 0}; |
021959e2 | 155 | |
817bc7b8 | 156 | struct complaint index_complaint = |
5f7b2142 | 157 | {"bad aux index at symbol %s", 0, 0}; |
817bc7b8 JG |
158 | |
159 | struct complaint aux_index_complaint = | |
5f7b2142 | 160 | {"bad proc end in aux found from symbol %s", 0, 0}; |
817bc7b8 | 161 | |
6edd74ae | 162 | struct complaint block_index_complaint = |
5f7b2142 | 163 | {"bad aux index at block symbol %s", 0, 0}; |
6edd74ae | 164 | |
817bc7b8 | 165 | struct complaint unknown_ext_complaint = |
5f7b2142 | 166 | {"unknown external symbol %s", 0, 0}; |
bd5635a1 | 167 | |
817bc7b8 | 168 | struct complaint unknown_sym_complaint = |
5f7b2142 | 169 | {"unknown local symbol %s", 0, 0}; |
101f259c | 170 | |
817bc7b8 | 171 | struct complaint unknown_st_complaint = |
5f7b2142 | 172 | {"with type %d", 0, 0}; |
101f259c | 173 | |
817bc7b8 | 174 | struct complaint block_overflow_complaint = |
5f7b2142 | 175 | {"block containing %s overfilled", 0, 0}; |
3eaebb75 | 176 | |
817bc7b8 | 177 | struct complaint basic_type_complaint = |
cbba020f | 178 | {"cannot map MIPS basic type 0x%x for %s", 0, 0}; |
3eaebb75 | 179 | |
817bc7b8 | 180 | struct complaint unknown_type_qual_complaint = |
5f7b2142 | 181 | {"unknown type qualifier 0x%x", 0, 0}; |
3eaebb75 | 182 | |
99a15c64 PS |
183 | struct complaint array_index_type_complaint = |
184 | {"illegal array index type for %s, assuming int", 0, 0}; | |
185 | ||
817bc7b8 | 186 | struct complaint array_bitsize_complaint = |
99a15c64 | 187 | {"size of array target type for %s not known, assuming %d bits", 0, 0}; |
3eaebb75 | 188 | |
817bc7b8 | 189 | struct complaint bad_tag_guess_complaint = |
5f7b2142 | 190 | {"guessed tag type of %s incorrectly", 0, 0}; |
817bc7b8 JG |
191 | |
192 | struct complaint block_member_complaint = | |
5f7b2142 | 193 | {"declaration block contains unhandled symbol type %d", 0, 0}; |
817bc7b8 JG |
194 | |
195 | struct complaint stEnd_complaint = | |
5f7b2142 | 196 | {"stEnd with storage class %d not handled", 0, 0}; |
817bc7b8 JG |
197 | |
198 | struct complaint unknown_mips_symtype_complaint = | |
5f7b2142 | 199 | {"unknown symbol type 0x%x", 0, 0}; |
817bc7b8 JG |
200 | |
201 | struct complaint stab_unknown_complaint = | |
5f7b2142 | 202 | {"unknown stabs symbol %s", 0, 0}; |
817bc7b8 JG |
203 | |
204 | struct complaint pdr_for_nonsymbol_complaint = | |
5f7b2142 | 205 | {"PDR for %s, but no symbol", 0, 0}; |
817bc7b8 JG |
206 | |
207 | struct complaint pdr_static_symbol_complaint = | |
99a15c64 | 208 | {"can't handle PDR for static proc at 0x%lx", 0, 0}; |
c55e6167 | 209 | |
e157305c PS |
210 | struct complaint bad_setjmp_pdr_complaint = |
211 | {"fixing bad setjmp PDR from libc", 0, 0}; | |
212 | ||
6ac14d25 | 213 | struct complaint bad_fbitfield_complaint = |
cbba020f | 214 | {"can't handle TIR fBitfield for %s", 0, 0}; |
6ac14d25 | 215 | |
99a15c64 PS |
216 | struct complaint bad_continued_complaint = |
217 | {"illegal TIR continued for %s", 0, 0}; | |
218 | ||
6ac14d25 | 219 | struct complaint bad_rfd_entry_complaint = |
cbba020f | 220 | {"bad rfd entry for %s: file %d, index %d", 0, 0}; |
6ac14d25 PS |
221 | |
222 | struct complaint unexpected_type_code_complaint = | |
223 | {"unexpected type code for %s", 0, 0}; | |
224 | ||
85999c05 PS |
225 | struct complaint unable_to_cross_ref_complaint = |
226 | {"unable to cross ref btTypedef for %s", 0, 0}; | |
227 | ||
228 | struct complaint illegal_forward_tq0_complaint = | |
229 | {"illegal tq0 in forward typedef for %s", 0, 0}; | |
3eaebb75 | 230 | |
85999c05 PS |
231 | struct complaint illegal_forward_bt_complaint = |
232 | {"illegal bt %d in forward typedef for %s", 0, 0}; | |
bd5635a1 | 233 | |
99a15c64 PS |
234 | struct complaint bad_linetable_guess_complaint = |
235 | {"guessed size of linetable for %s incorrectly", 0, 0}; | |
236 | ||
85999c05 | 237 | /* Macros and extra defs */ |
bd5635a1 RP |
238 | |
239 | /* Puns: hard to find whether -g was used and how */ | |
240 | ||
241 | #define MIN_GLEVEL GLEVEL_0 | |
242 | #define compare_glevel(a,b) \ | |
243 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
244 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
e072c738 JG |
245 | \f |
246 | /* Things that really are local to this module */ | |
247 | ||
c4413e2c FF |
248 | /* Remember what we deduced to be the source language of this psymtab. */ |
249 | ||
250 | static enum language psymtab_language = language_unknown; | |
251 | ||
6c2e7392 | 252 | /* Current BFD. */ |
3eaebb75 | 253 | |
6c2e7392 | 254 | static bfd *cur_bfd; |
3eaebb75 | 255 | |
e072c738 JG |
256 | /* Pointer to current file decriptor record, and its index */ |
257 | ||
5f7b2142 ILT |
258 | static FDR *cur_fdr; |
259 | static int cur_fd; | |
e072c738 JG |
260 | |
261 | /* Index of current symbol */ | |
262 | ||
5f7b2142 | 263 | static int cur_sdx; |
e072c738 JG |
264 | |
265 | /* Note how much "debuggable" this image is. We would like | |
266 | to see at least one FDR with full symbols */ | |
267 | ||
268 | static max_gdbinfo; | |
269 | static max_glevel; | |
270 | ||
271 | /* When examining .o files, report on undefined symbols */ | |
272 | ||
273 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
274 | ||
7e258d18 PB |
275 | /* Pseudo symbol to use when putting stabs into the symbol table. */ |
276 | ||
c55e6167 | 277 | static char stabs_symbol[] = STABS_SYMBOL; |
7e258d18 | 278 | |
e072c738 JG |
279 | /* Extra builtin types */ |
280 | ||
281 | struct type *builtin_type_complex; | |
282 | struct type *builtin_type_double_complex; | |
283 | struct type *builtin_type_fixed_dec; | |
284 | struct type *builtin_type_float_dec; | |
285 | struct type *builtin_type_string; | |
286 | ||
3eaebb75 | 287 | /* Forward declarations */ |
e072c738 | 288 | |
d747e0af | 289 | static void |
dac4929a | 290 | read_mips_symtab PARAMS ((struct objfile *, struct section_offsets *)); |
84ffdec2 JG |
291 | |
292 | static void | |
6c2e7392 | 293 | read_the_mips_symtab PARAMS ((bfd *)); |
84ffdec2 JG |
294 | |
295 | static int | |
99a15c64 | 296 | upgrade_type PARAMS ((int, struct type **, int, union aux_ext *, int, char *)); |
84ffdec2 JG |
297 | |
298 | static void | |
6c2e7392 | 299 | parse_partial_symbols PARAMS ((struct objfile *, |
dac4929a | 300 | struct section_offsets *)); |
d747e0af MT |
301 | |
302 | static int | |
85999c05 PS |
303 | cross_ref PARAMS ((int, union aux_ext *, struct type **, enum type_code, |
304 | char **, int, char *)); | |
84ffdec2 JG |
305 | |
306 | static void | |
307 | fixup_sigtramp PARAMS ((void)); | |
308 | ||
309 | static struct symbol * | |
310 | new_symbol PARAMS ((char *)); | |
311 | ||
312 | static struct type * | |
313 | new_type PARAMS ((char *)); | |
314 | ||
315 | static struct block * | |
316 | new_block PARAMS ((int)); | |
317 | ||
318 | static struct symtab * | |
319 | new_symtab PARAMS ((char *, int, int, struct objfile *)); | |
320 | ||
321 | static struct linetable * | |
322 | new_linetable PARAMS ((int)); | |
323 | ||
324 | static struct blockvector * | |
325 | new_bvect PARAMS ((int)); | |
326 | ||
85999c05 PS |
327 | static int |
328 | parse_symbol PARAMS ((SYMR *, union aux_ext *, char *, int)); | |
329 | ||
84ffdec2 | 330 | static struct type * |
99a15c64 | 331 | parse_type PARAMS ((int, union aux_ext *, unsigned int, int *, int, char *)); |
84ffdec2 JG |
332 | |
333 | static struct symbol * | |
334 | mylookup_symbol PARAMS ((char *, struct block *, enum namespace, | |
335 | enum address_class)); | |
336 | ||
337 | static struct block * | |
338 | shrink_block PARAMS ((struct block *, struct symtab *)); | |
339 | ||
340 | static PTR | |
341 | xzalloc PARAMS ((unsigned int)); | |
d747e0af MT |
342 | |
343 | static void | |
84ffdec2 | 344 | sort_blocks PARAMS ((struct symtab *)); |
d747e0af MT |
345 | |
346 | static int | |
391ca579 | 347 | compare_blocks PARAMS ((const void *, const void *)); |
84ffdec2 JG |
348 | |
349 | static struct partial_symtab * | |
350 | new_psymtab PARAMS ((char *, struct objfile *)); | |
351 | ||
d747e0af | 352 | static void |
84ffdec2 | 353 | psymtab_to_symtab_1 PARAMS ((struct partial_symtab *, char *)); |
c55e6167 | 354 | |
84ffdec2 JG |
355 | static void |
356 | add_block PARAMS ((struct block *, struct symtab *)); | |
357 | ||
358 | static void | |
359 | add_symbol PARAMS ((struct symbol *, struct block *)); | |
360 | ||
361 | static int | |
362 | add_line PARAMS ((struct linetable *, int, CORE_ADDR, int)); | |
363 | ||
364 | static struct linetable * | |
365 | shrink_linetable PARAMS ((struct linetable *)); | |
366 | ||
367 | static char * | |
368 | mips_next_symbol_text PARAMS ((void)); | |
bd5635a1 RP |
369 | \f |
370 | /* Things we export to other modules */ | |
371 | ||
bd5635a1 | 372 | /* Address bounds for the signal trampoline in inferior, if any */ |
101f259c | 373 | /* FIXME: Nothing really seems to use this. Why is it here? */ |
bd5635a1 RP |
374 | |
375 | CORE_ADDR sigtramp_address, sigtramp_end; | |
376 | ||
4ad1963e | 377 | static void |
84ffdec2 JG |
378 | mipscoff_new_init (ignore) |
379 | struct objfile *ignore; | |
bd5635a1 | 380 | { |
e7ff735c | 381 | sigtramp_address = 0; |
0b0d6c3f PS |
382 | stabsread_new_init (); |
383 | buildsym_new_init (); | |
bd5635a1 RP |
384 | } |
385 | ||
4ad1963e | 386 | static void |
80d68b1d FF |
387 | mipscoff_symfile_init (objfile) |
388 | struct objfile *objfile; | |
bd5635a1 | 389 | { |
5f7b2142 | 390 | if (objfile->sym_private != NULL) |
80d68b1d | 391 | { |
5f7b2142 | 392 | mfree (objfile->md, objfile->sym_private); |
80d68b1d | 393 | } |
e7e02420 PS |
394 | objfile->sym_private = (PTR) |
395 | xmmalloc (objfile->md, sizeof (struct ecoff_symfile_info)); | |
bd5635a1 RP |
396 | } |
397 | ||
4ad1963e | 398 | static void |
dac4929a | 399 | mipscoff_symfile_read (objfile, section_offsets, mainline) |
80d68b1d | 400 | struct objfile *objfile; |
dac4929a | 401 | struct section_offsets *section_offsets; |
bd5635a1 RP |
402 | int mainline; |
403 | { | |
6ac14d25 PS |
404 | struct cleanup * back_to; |
405 | ||
021959e2 | 406 | init_minimal_symbol_collection (); |
6ac14d25 | 407 | back_to = make_cleanup (discard_minimal_symbols, 0); |
bd5635a1 RP |
408 | |
409 | /* Now that the executable file is positioned at symbol table, | |
410 | process it and define symbols accordingly. */ | |
411 | ||
5f7b2142 | 412 | read_mips_symtab (objfile, section_offsets); |
bd5635a1 | 413 | |
021959e2 JG |
414 | /* Install any minimal symbols that have been collected as the current |
415 | minimal symbols for this objfile. */ | |
bd5635a1 | 416 | |
80d68b1d | 417 | install_minimal_symbols (objfile); |
6ac14d25 PS |
418 | |
419 | do_cleanups (back_to); | |
bd5635a1 | 420 | } |
817bc7b8 | 421 | |
80d68b1d FF |
422 | /* Perform any local cleanups required when we are done with a particular |
423 | objfile. I.E, we are in the process of discarding all symbol information | |
424 | for an objfile, freeing up all memory held for it, and unlinking the | |
425 | objfile struct from the global list of known objfiles. */ | |
426 | ||
427 | static void | |
428 | mipscoff_symfile_finish (objfile) | |
429 | struct objfile *objfile; | |
430 | { | |
5f7b2142 | 431 | if (objfile->sym_private != NULL) |
80d68b1d | 432 | { |
5f7b2142 | 433 | mfree (objfile->md, objfile->sym_private); |
80d68b1d FF |
434 | } |
435 | ||
6c2e7392 | 436 | cur_bfd = 0; |
80d68b1d FF |
437 | } |
438 | ||
d747e0af | 439 | /* Allocate zeroed memory */ |
bd5635a1 | 440 | |
84ffdec2 | 441 | static PTR |
5f7b2142 | 442 | xzalloc (size) |
e10a3052 | 443 | unsigned int size; |
bd5635a1 | 444 | { |
51b57ded | 445 | PTR p = xmalloc (size); |
bd5635a1 | 446 | |
4ed3a9ea | 447 | memset (p, 0, size); |
51b57ded | 448 | return p; |
bd5635a1 RP |
449 | } |
450 | ||
451 | /* Exported procedure: Builds a symtab from the PST partial one. | |
452 | Restores the environment in effect when PST was created, delegates | |
453 | most of the work to an ancillary procedure, and sorts | |
454 | and reorders the symtab list at the end */ | |
455 | ||
3eaebb75 | 456 | static void |
5f7b2142 ILT |
457 | mipscoff_psymtab_to_symtab (pst) |
458 | struct partial_symtab *pst; | |
bd5635a1 | 459 | { |
bd5635a1 | 460 | |
5f7b2142 ILT |
461 | if (!pst) |
462 | return; | |
bd5635a1 | 463 | |
5f7b2142 ILT |
464 | if (info_verbose) |
465 | { | |
466 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |
467 | fflush (stdout); | |
468 | } | |
bd5635a1 | 469 | |
5f7b2142 | 470 | next_symbol_text_func = mips_next_symbol_text; |
c55e6167 | 471 | |
5f7b2142 | 472 | psymtab_to_symtab_1 (pst, pst->filename); |
bd5635a1 | 473 | |
5f7b2142 ILT |
474 | /* Match with global symbols. This only needs to be done once, |
475 | after all of the symtabs and dependencies have been read in. */ | |
476 | scan_file_globals (pst->objfile); | |
bd5635a1 | 477 | |
5f7b2142 ILT |
478 | if (info_verbose) |
479 | printf_filtered ("done.\n"); | |
bd5635a1 RP |
480 | } |
481 | ||
482 | /* Exported procedure: Is PC in the signal trampoline code */ | |
483 | ||
b8c50f09 | 484 | int |
5f7b2142 ILT |
485 | in_sigtramp (pc, ignore) |
486 | CORE_ADDR pc; | |
487 | char *ignore; /* function name */ | |
bd5635a1 | 488 | { |
5f7b2142 ILT |
489 | if (sigtramp_address == 0) |
490 | fixup_sigtramp (); | |
491 | return (pc >= sigtramp_address && pc < sigtramp_end); | |
bd5635a1 | 492 | } |
bd5635a1 RP |
493 | \f |
494 | /* File-level interface functions */ | |
495 | ||
6c2e7392 | 496 | /* Read the symtab information from file ABFD into memory. */ |
d747e0af MT |
497 | |
498 | static void | |
6c2e7392 | 499 | read_the_mips_symtab (abfd) |
5f7b2142 | 500 | bfd *abfd; |
bd5635a1 | 501 | { |
6c2e7392 PS |
502 | if (ecoff_slurp_symbolic_info (abfd) == false) |
503 | error ("Error reading symbol table: %s", bfd_errmsg (bfd_error)); | |
bd5635a1 RP |
504 | } |
505 | ||
bd5635a1 RP |
506 | /* Find a file descriptor given its index RF relative to a file CF */ |
507 | ||
3eaebb75 SG |
508 | static FDR * |
509 | get_rfd (cf, rf) | |
5f7b2142 | 510 | int cf, rf; |
bd5635a1 | 511 | { |
6c2e7392 | 512 | FDR *fdrs; |
5f7b2142 | 513 | register FDR *f; |
6c2e7392 | 514 | RFDT rfd; |
5f7b2142 | 515 | |
6c2e7392 PS |
516 | fdrs = ecoff_data (cur_bfd)->fdr; |
517 | f = fdrs + cf; | |
5f7b2142 ILT |
518 | /* Object files do not have the RFD table, all refs are absolute */ |
519 | if (f->rfdBase == 0) | |
6c2e7392 | 520 | return fdrs + rf; |
6ac14d25 PS |
521 | (*ecoff_backend (cur_bfd)->swap_rfd_in) |
522 | (cur_bfd, | |
523 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
524 | + (f->rfdBase + rf) * ecoff_backend (cur_bfd)->external_rfd_size), | |
525 | &rfd); | |
6c2e7392 | 526 | return fdrs + rfd; |
bd5635a1 RP |
527 | } |
528 | ||
529 | /* Return a safer print NAME for a file descriptor */ | |
530 | ||
3eaebb75 | 531 | static char * |
6c2e7392 PS |
532 | fdr_name (f) |
533 | FDR *f; | |
bd5635a1 | 534 | { |
6c2e7392 | 535 | if (f->rss == -1) |
5f7b2142 | 536 | return "<stripped file>"; |
6c2e7392 | 537 | if (f->rss == 0) |
5f7b2142 | 538 | return "<NFY>"; |
6c2e7392 | 539 | return ecoff_data (cur_bfd)->ss + f->issBase + f->rss; |
bd5635a1 RP |
540 | } |
541 | ||
542 | ||
dac4929a SG |
543 | /* Read in and parse the symtab of the file OBJFILE. Symbols from |
544 | different sections are relocated via the SECTION_OFFSETS. */ | |
bd5635a1 | 545 | |
d747e0af | 546 | static void |
dac4929a | 547 | read_mips_symtab (objfile, section_offsets) |
5f7b2142 ILT |
548 | struct objfile *objfile; |
549 | struct section_offsets *section_offsets; | |
bd5635a1 | 550 | { |
6c2e7392 | 551 | cur_bfd = objfile->obfd; |
bd5635a1 | 552 | |
6c2e7392 | 553 | read_the_mips_symtab (objfile->obfd); |
bd5635a1 | 554 | |
6c2e7392 | 555 | parse_partial_symbols (objfile, section_offsets); |
bd5635a1 | 556 | |
7e258d18 | 557 | #if 0 |
6c2e7392 PS |
558 | /* Check to make sure file was compiled with -g. If not, warn the |
559 | user of this limitation. */ | |
5f7b2142 ILT |
560 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) |
561 | { | |
562 | if (max_gdbinfo == 0) | |
6c2e7392 | 563 | printf ("\n%s not compiled with -g, debugging support is limited.\n", |
5f7b2142 | 564 | objfile->name); |
6c2e7392 | 565 | printf ("You should compile with -g2 or -g3 for best debugging support.\n"); |
5f7b2142 ILT |
566 | fflush (stdout); |
567 | } | |
7e258d18 | 568 | #endif |
bd5635a1 | 569 | } |
bd5635a1 RP |
570 | \f |
571 | /* Local utilities */ | |
572 | ||
bd5635a1 RP |
573 | /* Map of FDR indexes to partial symtabs */ |
574 | ||
5f7b2142 ILT |
575 | struct pst_map |
576 | { | |
577 | struct partial_symtab *pst; /* the psymtab proper */ | |
85999c05 PS |
578 | long n_globals; /* exported globals (external symbols) */ |
579 | long globals_offset; /* cumulative */ | |
d4ea2aba | 580 | }; |
bd5635a1 RP |
581 | |
582 | ||
583 | /* Utility stack, used to nest procedures and blocks properly. | |
584 | It is a doubly linked list, to avoid too many alloc/free. | |
585 | Since we might need it quite a few times it is NOT deallocated | |
586 | after use. */ | |
587 | ||
5f7b2142 ILT |
588 | static struct parse_stack |
589 | { | |
590 | struct parse_stack *next, *prev; | |
591 | struct symtab *cur_st; /* Current symtab. */ | |
592 | struct block *cur_block; /* Block in it. */ | |
593 | int blocktype; /* What are we parsing. */ | |
594 | int maxsyms; /* Max symbols in this block. */ | |
595 | struct type *cur_type; /* Type we parse fields for. */ | |
596 | int cur_field; /* Field number in cur_type. */ | |
85999c05 | 597 | CORE_ADDR procadr; /* Start addres of this procedure */ |
5f7b2142 | 598 | int numargs; /* Its argument count */ |
6c2e7392 PS |
599 | } |
600 | ||
601 | *top_stack; /* Top stack ptr */ | |
bd5635a1 RP |
602 | |
603 | ||
604 | /* Enter a new lexical context */ | |
605 | ||
4ad1963e | 606 | static void |
5f7b2142 | 607 | push_parse_stack () |
bd5635a1 | 608 | { |
5f7b2142 ILT |
609 | struct parse_stack *new; |
610 | ||
611 | /* Reuse frames if possible */ | |
612 | if (top_stack && top_stack->prev) | |
613 | new = top_stack->prev; | |
614 | else | |
615 | new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack)); | |
616 | /* Initialize new frame with previous content */ | |
617 | if (top_stack) | |
618 | { | |
619 | register struct parse_stack *prev = new->prev; | |
bd5635a1 | 620 | |
5f7b2142 ILT |
621 | *new = *top_stack; |
622 | top_stack->prev = new; | |
623 | new->prev = prev; | |
624 | new->next = top_stack; | |
625 | } | |
626 | top_stack = new; | |
bd5635a1 RP |
627 | } |
628 | ||
629 | /* Exit a lexical context */ | |
630 | ||
4ad1963e | 631 | static void |
5f7b2142 | 632 | pop_parse_stack () |
bd5635a1 | 633 | { |
5f7b2142 ILT |
634 | if (!top_stack) |
635 | return; | |
636 | if (top_stack->next) | |
637 | top_stack = top_stack->next; | |
bd5635a1 RP |
638 | } |
639 | ||
640 | ||
641 | /* Cross-references might be to things we haven't looked at | |
642 | yet, e.g. type references. To avoid too many type | |
643 | duplications we keep a quick fixup table, an array | |
644 | of lists of references indexed by file descriptor */ | |
645 | ||
e7e02420 | 646 | struct mips_pending |
5f7b2142 ILT |
647 | { |
648 | struct mips_pending *next; /* link */ | |
6ac14d25 | 649 | char *s; /* the unswapped symbol */ |
5f7b2142 | 650 | struct type *t; /* its partial type descriptor */ |
e7e02420 | 651 | }; |
bd5635a1 RP |
652 | |
653 | ||
85999c05 | 654 | /* Check whether we already saw symbol SH in file FH */ |
bd5635a1 | 655 | |
4ad1963e | 656 | static struct mips_pending * |
5f7b2142 ILT |
657 | is_pending_symbol (fh, sh) |
658 | FDR *fh; | |
6ac14d25 | 659 | char *sh; |
bd5635a1 | 660 | { |
6c2e7392 | 661 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 | 662 | register struct mips_pending *p; |
e7e02420 | 663 | struct mips_pending **pending_list = ECOFF_PENDING_LIST (current_objfile); |
5f7b2142 ILT |
664 | |
665 | /* Linear search is ok, list is typically no more than 10 deep */ | |
666 | for (p = pending_list[f_idx]; p; p = p->next) | |
667 | if (p->s == sh) | |
668 | break; | |
669 | return p; | |
bd5635a1 RP |
670 | } |
671 | ||
85999c05 | 672 | /* Add a new symbol SH of type T */ |
bd5635a1 | 673 | |
4ad1963e | 674 | static void |
5f7b2142 ILT |
675 | add_pending (fh, sh, t) |
676 | FDR *fh; | |
6ac14d25 | 677 | char *sh; |
5f7b2142 | 678 | struct type *t; |
bd5635a1 | 679 | { |
6c2e7392 | 680 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
681 | struct mips_pending *p = is_pending_symbol (fh, sh); |
682 | ||
683 | /* Make sure we do not make duplicates */ | |
684 | if (!p) | |
685 | { | |
e7e02420 PS |
686 | struct mips_pending **pending_list = ECOFF_PENDING_LIST (current_objfile); |
687 | ||
688 | p = ((struct mips_pending *) | |
689 | obstack_alloc (¤t_objfile->psymbol_obstack, | |
690 | sizeof (struct mips_pending))); | |
5f7b2142 ILT |
691 | p->s = sh; |
692 | p->t = t; | |
693 | p->next = pending_list[f_idx]; | |
694 | pending_list[f_idx] = p; | |
695 | } | |
bd5635a1 | 696 | } |
bd5635a1 | 697 | \f |
5f7b2142 | 698 | |
bd5635a1 RP |
699 | /* Parsing Routines proper. */ |
700 | ||
701 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. | |
702 | For blocks, procedures and types we open a new lexical context. | |
6c2e7392 PS |
703 | This is basically just a big switch on the symbol's type. Argument |
704 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
705 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
706 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
707 | aux symbols are big-endian or little-endian. Return count of | |
85999c05 | 708 | SYMR's handled (normally one). */ |
bd5635a1 | 709 | |
7e258d18 | 710 | static int |
6c2e7392 | 711 | parse_symbol (sh, ax, ext_sh, bigend) |
5f7b2142 ILT |
712 | SYMR *sh; |
713 | union aux_ext *ax; | |
6ac14d25 | 714 | char *ext_sh; |
5f7b2142 | 715 | int bigend; |
bd5635a1 | 716 | { |
6ac14d25 PS |
717 | const bfd_size_type external_sym_size |
718 | = ecoff_backend (cur_bfd)->external_sym_size; | |
719 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) = | |
720 | ecoff_backend (cur_bfd)->swap_sym_in; | |
5f7b2142 ILT |
721 | char *name; |
722 | struct symbol *s; | |
723 | struct block *b; | |
6c2e7392 | 724 | struct mips_pending *pend; |
5f7b2142 ILT |
725 | struct type *t; |
726 | struct field *f; | |
727 | int count = 1; | |
5f7b2142 ILT |
728 | enum address_class class; |
729 | TIR tir; | |
85999c05 | 730 | long svalue = sh->value; |
99a15c64 | 731 | int bitsize; |
5f7b2142 | 732 | |
6ac14d25 | 733 | if (ext_sh == (char *) NULL) |
6c2e7392 PS |
734 | name = ecoff_data (cur_bfd)->ssext + sh->iss; |
735 | else | |
736 | name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh->iss; | |
737 | ||
5f7b2142 ILT |
738 | switch (sh->st) |
739 | { | |
5f7b2142 ILT |
740 | case stNil: |
741 | break; | |
742 | ||
743 | case stGlobal: /* external symbol, goes into global block */ | |
744 | class = LOC_STATIC; | |
745 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
746 | GLOBAL_BLOCK); | |
6c2e7392 | 747 | s = new_symbol (name); |
5f7b2142 ILT |
748 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
749 | goto data; | |
750 | ||
751 | case stStatic: /* static data, goes into current block. */ | |
752 | class = LOC_STATIC; | |
753 | b = top_stack->cur_block; | |
6c2e7392 | 754 | s = new_symbol (name); |
e7ff735c JK |
755 | if (sh->sc == scCommon) |
756 | { | |
757 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
758 | address is not in the symbol; we need to fix it later in | |
759 | scan_file_globals. */ | |
760 | int bucket = hashname (SYMBOL_NAME (s)); | |
761 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; | |
762 | global_sym_chain[bucket] = s; | |
763 | } | |
764 | else | |
765 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
5f7b2142 ILT |
766 | goto data; |
767 | ||
768 | case stLocal: /* local variable, goes into current block */ | |
769 | if (sh->sc == scRegister) | |
770 | { | |
771 | class = LOC_REGISTER; | |
85999c05 | 772 | svalue = ECOFF_REG_TO_REGNUM (svalue); |
5f7b2142 ILT |
773 | } |
774 | else | |
775 | class = LOC_LOCAL; | |
776 | b = top_stack->cur_block; | |
6c2e7392 | 777 | s = new_symbol (name); |
85999c05 | 778 | SYMBOL_VALUE (s) = svalue; |
5f7b2142 ILT |
779 | |
780 | data: /* Common code for symbols describing data */ | |
781 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
782 | SYMBOL_CLASS (s) = class; | |
783 | add_symbol (s, b); | |
784 | ||
785 | /* Type could be missing in a number of cases */ | |
786 | if (sh->sc == scUndefined || sh->sc == scNil || | |
787 | sh->index == 0xfffff) | |
788 | SYMBOL_TYPE (s) = builtin_type_int; /* undefined? */ | |
789 | else | |
99a15c64 | 790 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); |
5f7b2142 ILT |
791 | /* Value of a data symbol is its memory address */ |
792 | break; | |
793 | ||
794 | case stParam: /* arg to procedure, goes into current block */ | |
795 | max_gdbinfo++; | |
796 | top_stack->numargs++; | |
797 | ||
5f7b2142 ILT |
798 | /* Special GNU C++ name. */ |
799 | if (name[0] == CPLUS_MARKER && name[1] == 't' && name[2] == 0) | |
800 | name = "this"; /* FIXME, not alloc'd in obstack */ | |
801 | s = new_symbol (name); | |
802 | ||
803 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
e7ff735c | 804 | switch (sh->sc) |
5f7b2142 | 805 | { |
e7ff735c JK |
806 | case scRegister: |
807 | /* Pass by value in register. */ | |
808 | SYMBOL_CLASS(s) = LOC_REGPARM; | |
85999c05 | 809 | svalue = ECOFF_REG_TO_REGNUM (svalue); |
e7ff735c JK |
810 | break; |
811 | case scVar: | |
812 | /* Pass by reference on stack. */ | |
813 | SYMBOL_CLASS(s) = LOC_REF_ARG; | |
814 | break; | |
815 | case scVarRegister: | |
816 | /* Pass by reference in register. */ | |
817 | SYMBOL_CLASS(s) = LOC_REGPARM_ADDR; | |
85999c05 | 818 | svalue = ECOFF_REG_TO_REGNUM (svalue); |
e7ff735c JK |
819 | break; |
820 | default: | |
821 | /* Pass by value on stack. */ | |
822 | SYMBOL_CLASS(s) = LOC_ARG; | |
823 | break; | |
5f7b2142 | 824 | } |
85999c05 | 825 | SYMBOL_VALUE (s) = svalue; |
99a15c64 | 826 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); |
5f7b2142 | 827 | add_symbol (s, top_stack->cur_block); |
0c4d2cc2 | 828 | #if 0 |
5f7b2142 ILT |
829 | /* FIXME: This has not been tested. See dbxread.c */ |
830 | /* Add the type of this parameter to the function/procedure | |
0c4d2cc2 | 831 | type of this block. */ |
5f7b2142 | 832 | add_param_to_type (&top_stack->cur_block->function->type, s); |
0c4d2cc2 | 833 | #endif |
5f7b2142 ILT |
834 | break; |
835 | ||
836 | case stLabel: /* label, goes into current block */ | |
6c2e7392 | 837 | s = new_symbol (name); |
5f7b2142 ILT |
838 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; /* so that it can be used */ |
839 | SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused */ | |
840 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
841 | SYMBOL_TYPE (s) = builtin_type_int; | |
842 | add_symbol (s, top_stack->cur_block); | |
843 | break; | |
844 | ||
845 | case stProc: /* Procedure, usually goes into global block */ | |
6ac14d25 | 846 | case stStaticProc: /* Static procedure, goes into current block */ |
6c2e7392 | 847 | s = new_symbol (name); |
5f7b2142 ILT |
848 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
849 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
850 | /* Type of the return value */ | |
851 | if (sh->sc == scUndefined || sh->sc == scNil) | |
852 | t = builtin_type_int; | |
853 | else | |
99a15c64 | 854 | t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name); |
5f7b2142 ILT |
855 | b = top_stack->cur_block; |
856 | if (sh->st == stProc) | |
857 | { | |
858 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
859 | /* The next test should normally be true, | |
0c4d2cc2 JG |
860 | but provides a hook for nested functions |
861 | (which we don't want to make global). */ | |
5f7b2142 ILT |
862 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
863 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
864 | } | |
865 | add_symbol (s, b); | |
bd5635a1 | 866 | |
5f7b2142 | 867 | /* Make a type for the procedure itself */ |
0c4d2cc2 | 868 | #if 0 |
5f7b2142 ILT |
869 | /* FIXME: This has not been tested yet! See dbxread.c */ |
870 | /* Generate a template for the type of this function. The | |
871 | types of the arguments will be added as we read the symbol | |
872 | table. */ | |
ade40d31 | 873 | memcpy (lookup_function_type (t), SYMBOL_TYPE (s), sizeof (struct type)); |
0c4d2cc2 | 874 | #else |
5f7b2142 | 875 | SYMBOL_TYPE (s) = lookup_function_type (t); |
0c4d2cc2 | 876 | #endif |
bd5635a1 | 877 | |
5f7b2142 ILT |
878 | /* Create and enter a new lexical context */ |
879 | b = new_block (top_stack->maxsyms); | |
880 | SYMBOL_BLOCK_VALUE (s) = b; | |
881 | BLOCK_FUNCTION (b) = s; | |
882 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
883 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
884 | add_block (b, top_stack->cur_st); | |
885 | ||
886 | /* Not if we only have partial info */ | |
887 | if (sh->sc == scUndefined || sh->sc == scNil) | |
888 | break; | |
889 | ||
890 | push_parse_stack (); | |
891 | top_stack->cur_block = b; | |
892 | top_stack->blocktype = sh->st; | |
893 | top_stack->cur_type = SYMBOL_TYPE (s); | |
894 | top_stack->cur_field = -1; | |
895 | top_stack->procadr = sh->value; | |
896 | top_stack->numargs = 0; | |
5f7b2142 ILT |
897 | break; |
898 | ||
899 | /* Beginning of code for structure, union, and enum definitions. | |
817bc7b8 | 900 | They all share a common set of local variables, defined here. */ |
5f7b2142 ILT |
901 | { |
902 | enum type_code type_code; | |
6ac14d25 | 903 | char *ext_tsym; |
5f7b2142 ILT |
904 | int nfields; |
905 | long max_value; | |
906 | struct field *f; | |
907 | ||
908 | case stStruct: /* Start a block defining a struct type */ | |
909 | type_code = TYPE_CODE_STRUCT; | |
910 | goto structured_common; | |
911 | ||
912 | case stUnion: /* Start a block defining a union type */ | |
913 | type_code = TYPE_CODE_UNION; | |
914 | goto structured_common; | |
915 | ||
916 | case stEnum: /* Start a block defining an enum type */ | |
917 | type_code = TYPE_CODE_ENUM; | |
918 | goto structured_common; | |
919 | ||
920 | case stBlock: /* Either a lexical block, or some type */ | |
e7ff735c | 921 | if (sh->sc != scInfo && sh->sc != scCommon) |
5f7b2142 ILT |
922 | goto case_stBlock_code; /* Lexical block */ |
923 | ||
924 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
925 | ||
926 | /* Common code for handling struct, union, enum, and/or as-yet- | |
927 | unknown-type blocks of info about structured data. `type_code' | |
928 | has been set to the proper TYPE_CODE, if we know it. */ | |
929 | structured_common: | |
930 | push_parse_stack (); | |
931 | top_stack->blocktype = stBlock; | |
932 | ||
5f7b2142 ILT |
933 | /* First count the number of fields and the highest value. */ |
934 | nfields = 0; | |
935 | max_value = 0; | |
6ac14d25 PS |
936 | for (ext_tsym = ext_sh + external_sym_size; |
937 | ; | |
938 | ext_tsym += external_sym_size) | |
5f7b2142 | 939 | { |
6c2e7392 PS |
940 | SYMR tsym; |
941 | ||
6ac14d25 | 942 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 | 943 | |
1c8961dd | 944 | switch (tsym.st) |
5f7b2142 | 945 | { |
1c8961dd JK |
946 | case stEnd: |
947 | goto end_of_fields; | |
948 | ||
949 | case stMember: | |
5f7b2142 ILT |
950 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) |
951 | /* If the type of the member is Nil (or Void), | |
952 | without qualifiers, assume the tag is an | |
953 | enumeration. */ | |
6c2e7392 | 954 | if (tsym.index == indexNil) |
5f7b2142 ILT |
955 | type_code = TYPE_CODE_ENUM; |
956 | else | |
957 | { | |
958 | ecoff_swap_tir_in (bigend, | |
6c2e7392 | 959 | &ax[tsym.index].a_ti, |
5f7b2142 ILT |
960 | &tir); |
961 | if ((tir.bt == btNil || tir.bt == btVoid) | |
962 | && tir.tq0 == tqNil) | |
963 | type_code = TYPE_CODE_ENUM; | |
817bc7b8 | 964 | } |
5f7b2142 | 965 | nfields++; |
6c2e7392 PS |
966 | if (tsym.value > max_value) |
967 | max_value = tsym.value; | |
1c8961dd JK |
968 | break; |
969 | ||
1c8961dd JK |
970 | case stBlock: |
971 | case stUnion: | |
972 | case stEnum: | |
973 | case stStruct: | |
1c8961dd JK |
974 | { |
975 | #if 0 | |
976 | /* This is a no-op; is it trying to tell us something | |
977 | we should be checking? */ | |
978 | if (tsym.sc == scVariant); /*UNIMPLEMENTED*/ | |
979 | #endif | |
980 | if (tsym.index != 0) | |
981 | { | |
982 | /* This is something like a struct within a | |
983 | struct. Skip over the fields of the inner | |
984 | struct. The -1 is because the for loop will | |
985 | increment ext_tsym. */ | |
6ac14d25 PS |
986 | ext_tsym = ((char *) ecoff_data (cur_bfd)->external_sym |
987 | + ((cur_fdr->isymBase + tsym.index - 1) | |
988 | * external_sym_size)); | |
1c8961dd JK |
989 | } |
990 | } | |
991 | break; | |
992 | ||
6ac14d25 PS |
993 | case stTypedef: |
994 | /* mips cc puts out a typedef for struct x if it is not yet | |
995 | defined when it encounters | |
996 | struct y { struct x *xp; }; | |
997 | Just ignore it. */ | |
998 | break; | |
999 | ||
1c8961dd JK |
1000 | default: |
1001 | complain (&block_member_complaint, tsym.st); | |
5f7b2142 | 1002 | } |
5f7b2142 | 1003 | } |
1c8961dd | 1004 | end_of_fields:; |
5f7b2142 ILT |
1005 | |
1006 | /* In an stBlock, there is no way to distinguish structs, | |
1007 | unions, and enums at this point. This is a bug in the | |
1008 | original design (that has been fixed with the recent | |
1009 | addition of the stStruct, stUnion, and stEnum symbol | |
1010 | types.) The way you can tell is if/when you see a variable | |
1011 | or field of that type. In that case the variable's type | |
1012 | (in the AUX table) says if the type is struct, union, or | |
1013 | enum, and points back to the stBlock here. So you can | |
1014 | patch the tag kind up later - but only if there actually is | |
1015 | a variable or field of that type. | |
1016 | ||
1017 | So until we know for sure, we will guess at this point. | |
1018 | The heuristic is: | |
1019 | If the first member has index==indexNil or a void type, | |
1020 | assume we have an enumeration. | |
1021 | Otherwise, if there is more than one member, and all | |
1022 | the members have offset 0, assume we have a union. | |
1023 | Otherwise, assume we have a struct. | |
1024 | ||
1025 | The heuristic could guess wrong in the case of of an | |
1026 | enumeration with no members or a union with one (or zero) | |
1027 | members, or when all except the last field of a struct have | |
1028 | width zero. These are uncommon and/or illegal situations, | |
1029 | and in any case guessing wrong probably doesn't matter | |
1030 | much. | |
1031 | ||
1032 | But if we later do find out we were wrong, we fixup the tag | |
1033 | kind. Members of an enumeration must be handled | |
1034 | differently from struct/union fields, and that is harder to | |
1035 | patch up, but luckily we shouldn't need to. (If there are | |
1036 | any enumeration members, we can tell for sure it's an enum | |
1037 | here.) */ | |
1038 | ||
1039 | if (type_code == TYPE_CODE_UNDEF) | |
1040 | if (nfields > 1 && max_value == 0) | |
1041 | type_code = TYPE_CODE_UNION; | |
1042 | else | |
1043 | type_code = TYPE_CODE_STRUCT; | |
1044 | ||
85999c05 | 1045 | /* Create a new type or use the pending type. */ |
6c2e7392 | 1046 | pend = is_pending_symbol (cur_fdr, ext_sh); |
85999c05 PS |
1047 | if (pend == (struct mips_pending *) NULL) |
1048 | { | |
1049 | t = new_type (NULL); | |
1050 | add_pending (cur_fdr, ext_sh, t); | |
1051 | } | |
1052 | else | |
6c2e7392 | 1053 | t = pend->t; |
85999c05 PS |
1054 | |
1055 | /* Alpha cc unnamed structs do not get a tag name. */ | |
1056 | if (sh->iss == 0) | |
1057 | TYPE_TAG_NAME (t) = NULL; | |
5f7b2142 | 1058 | else |
85999c05 PS |
1059 | TYPE_TAG_NAME (t) = obconcat (¤t_objfile->symbol_obstack, |
1060 | "", "", name); | |
5f7b2142 ILT |
1061 | |
1062 | TYPE_CODE (t) = type_code; | |
1063 | TYPE_LENGTH (t) = sh->value; | |
1064 | TYPE_NFIELDS (t) = nfields; | |
6c2e7392 PS |
1065 | TYPE_FIELDS (t) = f = ((struct field *) |
1066 | TYPE_ALLOC (t, | |
1067 | nfields * sizeof (struct field))); | |
5f7b2142 ILT |
1068 | |
1069 | if (type_code == TYPE_CODE_ENUM) | |
1070 | { | |
1071 | /* This is a non-empty enum. */ | |
6ac14d25 PS |
1072 | for (ext_tsym = ext_sh + external_sym_size; |
1073 | ; | |
1074 | ext_tsym += external_sym_size) | |
5f7b2142 | 1075 | { |
6c2e7392 | 1076 | SYMR tsym; |
5f7b2142 | 1077 | struct symbol *enum_sym; |
6c2e7392 | 1078 | |
6ac14d25 | 1079 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 PS |
1080 | |
1081 | if (tsym.st != stMember) | |
1082 | break; | |
1083 | ||
1084 | f->bitpos = tsym.value; | |
5f7b2142 | 1085 | f->type = t; |
6c2e7392 PS |
1086 | f->name = (ecoff_data (cur_bfd)->ss |
1087 | + cur_fdr->issBase | |
1088 | + tsym.iss); | |
5f7b2142 ILT |
1089 | f->bitsize = 0; |
1090 | ||
1091 | enum_sym = ((struct symbol *) | |
817bc7b8 | 1092 | obstack_alloc (¤t_objfile->symbol_obstack, |
5f7b2142 ILT |
1093 | sizeof (struct symbol))); |
1094 | memset ((PTR) enum_sym, 0, sizeof (struct symbol)); | |
1095 | SYMBOL_NAME (enum_sym) = f->name; | |
1096 | SYMBOL_CLASS (enum_sym) = LOC_CONST; | |
1097 | SYMBOL_TYPE (enum_sym) = t; | |
1098 | SYMBOL_NAMESPACE (enum_sym) = VAR_NAMESPACE; | |
6c2e7392 | 1099 | SYMBOL_VALUE (enum_sym) = tsym.value; |
5f7b2142 ILT |
1100 | add_symbol (enum_sym, top_stack->cur_block); |
1101 | ||
1102 | /* Skip the stMembers that we've handled. */ | |
1103 | count++; | |
1104 | f++; | |
1105 | } | |
1106 | } | |
5f7b2142 ILT |
1107 | /* make this the current type */ |
1108 | top_stack->cur_type = t; | |
1109 | top_stack->cur_field = 0; | |
85999c05 PS |
1110 | |
1111 | /* Do not create a symbol for alpha cc unnamed structs. */ | |
1112 | if (sh->iss == 0) | |
1113 | break; | |
1114 | s = new_symbol (name); | |
1115 | SYMBOL_NAMESPACE (s) = STRUCT_NAMESPACE; | |
1116 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
1117 | SYMBOL_VALUE (s) = 0; | |
1118 | SYMBOL_TYPE (s) = t; | |
1119 | ||
1120 | /* gcc puts out an empty struct for an opaque struct definitions. */ | |
1121 | if (TYPE_NFIELDS (t) == 0) | |
1122 | { | |
1123 | TYPE_FLAGS (t) |= TYPE_FLAG_STUB; | |
1124 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1125 | } | |
1126 | add_symbol (s, top_stack->cur_block); | |
5f7b2142 ILT |
1127 | break; |
1128 | ||
1129 | /* End of local variables shared by struct, union, enum, and | |
1130 | block (as yet unknown struct/union/enum) processing. */ | |
1131 | } | |
817bc7b8 | 1132 | |
5f7b2142 ILT |
1133 | case_stBlock_code: |
1134 | /* beginnning of (code) block. Value of symbol | |
1135 | is the displacement from procedure start */ | |
1136 | push_parse_stack (); | |
1137 | top_stack->blocktype = stBlock; | |
1138 | b = new_block (top_stack->maxsyms); | |
1139 | BLOCK_START (b) = sh->value + top_stack->procadr; | |
1140 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1141 | top_stack->cur_block = b; | |
1142 | add_block (b, top_stack->cur_st); | |
1143 | break; | |
1144 | ||
1145 | case stEnd: /* end (of anything) */ | |
e7ff735c | 1146 | if (sh->sc == scInfo || sh->sc == scCommon) |
5f7b2142 ILT |
1147 | { |
1148 | /* Finished with type */ | |
1149 | top_stack->cur_type = 0; | |
1150 | } | |
6c2e7392 PS |
1151 | else if (sh->sc == scText && |
1152 | (top_stack->blocktype == stProc || | |
1153 | top_stack->blocktype == stStaticProc)) | |
5f7b2142 ILT |
1154 | { |
1155 | /* Finished with procedure */ | |
1156 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
1157 | struct mips_extra_func_info *e; | |
1158 | struct block *b; | |
1159 | int i; | |
1160 | ||
1161 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1162 | ||
1163 | /* Make up special symbol to contain procedure specific info */ | |
1164 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
1165 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
1166 | SYMBOL_CLASS (s) = LOC_CONST; | |
1167 | SYMBOL_TYPE (s) = builtin_type_void; | |
1168 | e = ((struct mips_extra_func_info *) | |
1169 | obstack_alloc (¤t_objfile->symbol_obstack, | |
1170 | sizeof (struct mips_extra_func_info))); | |
85999c05 | 1171 | SYMBOL_VALUE (s) = (long) e; |
5f7b2142 ILT |
1172 | e->numargs = top_stack->numargs; |
1173 | add_symbol (s, top_stack->cur_block); | |
1174 | ||
1175 | /* Reallocate symbols, saving memory */ | |
1176 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1177 | ||
1178 | /* f77 emits proc-level with address bounds==[0,0], | |
6c2e7392 | 1179 | So look for such child blocks, and patch them. */ |
5f7b2142 ILT |
1180 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) |
1181 | { | |
1182 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
1183 | if (BLOCK_SUPERBLOCK (b_bad) == b | |
1184 | && BLOCK_START (b_bad) == top_stack->procadr | |
1185 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1186 | { | |
1187 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1188 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1193 | { | |
6c2e7392 PS |
1194 | /* End of (code) block. The value of the symbol is the |
1195 | displacement from the procedure`s start address of the | |
1196 | end of this block. */ | |
5f7b2142 ILT |
1197 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
1198 | shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1199 | } | |
1200 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1201 | { | |
1202 | /* End of file. Pop parse stack and ignore. Higher | |
6c2e7392 | 1203 | level code deals with this. */ |
5f7b2142 | 1204 | ; |
bd5635a1 | 1205 | } |
5f7b2142 ILT |
1206 | else |
1207 | complain (&stEnd_complaint, sh->sc); | |
1208 | ||
1209 | pop_parse_stack (); /* restore previous lexical context */ | |
1210 | break; | |
1211 | ||
1212 | case stMember: /* member of struct or union */ | |
1213 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
6c2e7392 | 1214 | f->name = name; |
5f7b2142 | 1215 | f->bitpos = sh->value; |
99a15c64 PS |
1216 | bitsize = 0; |
1217 | f->type = parse_type (cur_fd, ax, sh->index, &bitsize, bigend, name); | |
1218 | f->bitsize = bitsize; | |
5f7b2142 ILT |
1219 | break; |
1220 | ||
1221 | case stTypedef: /* type definition */ | |
85999c05 PS |
1222 | /* Typedefs for forward declarations and opaque structs from alpha cc |
1223 | are handled by cross_ref, skip them. */ | |
1224 | if (sh->iss == 0) | |
1225 | break; | |
1226 | ||
1227 | /* Parse the type or use the pending type. */ | |
1228 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1229 | if (pend == (struct mips_pending *) NULL) | |
1230 | { | |
99a15c64 | 1231 | t = parse_type (cur_fd, ax, sh->index, (int *)NULL, bigend, name); |
85999c05 PS |
1232 | add_pending (cur_fdr, ext_sh, t); |
1233 | } | |
1234 | else | |
1235 | t = pend->t; | |
1236 | ||
1237 | /* mips cc puts out a typedef with the name of the struct for forward | |
1238 | declarations. These should not go into the symbol table and | |
1239 | TYPE_NAME should not be set for them. | |
1240 | They can't be distinguished from an intentional typedef to | |
1241 | the same name however: | |
1242 | x.h: | |
1243 | struct x { int ix; int jx; }; | |
1244 | struct xx; | |
1245 | x.c: | |
1246 | typedef struct x x; | |
1247 | struct xx {int ixx; int jxx; }; | |
1248 | generates a cross referencing stTypedef for x and xx. | |
1249 | The user visible effect of this is that the type of a pointer | |
1250 | to struct foo sometimes is given as `foo *' instead of `struct foo *'. | |
1251 | The problem is fixed with alpha cc. */ | |
1252 | ||
6c2e7392 | 1253 | s = new_symbol (name); |
5f7b2142 ILT |
1254 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
1255 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
1256 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; | |
85999c05 | 1257 | SYMBOL_TYPE (s) = t; |
5f7b2142 | 1258 | add_symbol (s, top_stack->cur_block); |
85999c05 | 1259 | |
6ac14d25 PS |
1260 | /* Incomplete definitions of structs should not get a name. */ |
1261 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1262 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
1263 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT | |
1264 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) | |
1265 | { | |
1266 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1267 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1268 | { | |
1269 | /* If we are giving a name to a type such as "pointer to | |
1270 | foo" or "function returning foo", we better not set | |
1271 | the TYPE_NAME. If the program contains "typedef char | |
1272 | *caddr_t;", we don't want all variables of type char | |
1273 | * to print as caddr_t. This is not just a | |
1274 | consequence of GDB's type management; CC and GCC (at | |
1275 | least through version 2.4) both output variables of | |
1276 | either type char * or caddr_t with the type | |
1277 | refering to the stTypedef symbol for caddr_t. If a future | |
1278 | compiler cleans this up it GDB is not ready for it | |
1279 | yet, but if it becomes ready we somehow need to | |
1280 | disable this check (without breaking the PCC/GCC2.4 | |
1281 | case). | |
1282 | ||
1283 | Sigh. | |
1284 | ||
1285 | Fortunately, this check seems not to be necessary | |
1286 | for anything except pointers or functions. */ | |
1287 | } | |
1288 | else | |
1289 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_NAME (s); | |
1290 | } | |
5f7b2142 ILT |
1291 | break; |
1292 | ||
1293 | case stFile: /* file name */ | |
1294 | push_parse_stack (); | |
1295 | top_stack->blocktype = sh->st; | |
1296 | break; | |
1297 | ||
1298 | /* I`ve never seen these for C */ | |
1299 | case stRegReloc: | |
1300 | break; /* register relocation */ | |
1301 | case stForward: | |
1302 | break; /* forwarding address */ | |
1303 | case stConstant: | |
1304 | break; /* constant */ | |
1305 | default: | |
1306 | complain (&unknown_mips_symtype_complaint, sh->st); | |
1307 | break; | |
1308 | } | |
6c2e7392 | 1309 | |
5f7b2142 | 1310 | return count; |
bd5635a1 RP |
1311 | } |
1312 | ||
d747e0af MT |
1313 | /* Parse the type information provided in the raw AX entries for |
1314 | the symbol SH. Return the bitfield size in BS, in case. | |
1315 | We must byte-swap the AX entries before we use them; BIGEND says whether | |
1316 | they are big-endian or little-endian (from fh->fBigendian). */ | |
bd5635a1 | 1317 | |
84ffdec2 | 1318 | static struct type * |
99a15c64 | 1319 | parse_type (fd, ax, aux_index, bs, bigend, sym_name) |
85999c05 | 1320 | int fd; |
5f7b2142 | 1321 | union aux_ext *ax; |
99a15c64 | 1322 | unsigned int aux_index; |
5f7b2142 ILT |
1323 | int *bs; |
1324 | int bigend; | |
cbba020f | 1325 | char *sym_name; |
bd5635a1 | 1326 | { |
5f7b2142 ILT |
1327 | /* Null entries in this map are treated specially */ |
1328 | static struct type **map_bt[] = | |
1329 | { | |
1330 | &builtin_type_void, /* btNil */ | |
1331 | 0, /* btAdr */ | |
1332 | &builtin_type_char, /* btChar */ | |
1333 | &builtin_type_unsigned_char,/* btUChar */ | |
1334 | &builtin_type_short, /* btShort */ | |
1335 | &builtin_type_unsigned_short, /* btUShort */ | |
1336 | &builtin_type_int, /* btInt */ | |
1337 | &builtin_type_unsigned_int, /* btUInt */ | |
1338 | &builtin_type_long, /* btLong */ | |
1339 | &builtin_type_unsigned_long,/* btULong */ | |
1340 | &builtin_type_float, /* btFloat */ | |
1341 | &builtin_type_double, /* btDouble */ | |
1342 | 0, /* btStruct */ | |
1343 | 0, /* btUnion */ | |
1344 | 0, /* btEnum */ | |
1345 | 0, /* btTypedef */ | |
1346 | 0, /* btRange */ | |
1347 | 0, /* btSet */ | |
1348 | &builtin_type_complex, /* btComplex */ | |
1349 | &builtin_type_double_complex, /* btDComplex */ | |
1350 | 0, /* btIndirect */ | |
1351 | &builtin_type_fixed_dec, /* btFixedDec */ | |
1352 | &builtin_type_float_dec, /* btFloatDec */ | |
1353 | &builtin_type_string, /* btString */ | |
1354 | 0, /* btBit */ | |
1355 | 0, /* btPicture */ | |
1356 | &builtin_type_void, /* btVoid */ | |
85999c05 PS |
1357 | 0, /* DEC C++: Pointer to member */ |
1358 | 0, /* DEC C++: Virtual function table */ | |
1359 | 0, /* DEC C++: Class (Record) */ | |
1360 | &builtin_type_long, /* btLong64 */ | |
1361 | &builtin_type_unsigned_long, /* btULong64 */ | |
1362 | &builtin_type_long_long, /* btLongLong64 */ | |
1363 | &builtin_type_unsigned_long_long, /* btULongLong64 */ | |
1364 | &builtin_type_unsigned_long, /* btAdr64 */ | |
1365 | &builtin_type_long, /* btInt64 */ | |
1366 | &builtin_type_unsigned_long, /* btUInt64 */ | |
5f7b2142 ILT |
1367 | }; |
1368 | ||
1369 | TIR t[1]; | |
1370 | struct type *tp = 0; | |
6c2e7392 | 1371 | enum type_code type_code = TYPE_CODE_UNDEF; |
5f7b2142 | 1372 | |
99a15c64 PS |
1373 | /* Handle corrupt aux indices. */ |
1374 | if (aux_index >= (ecoff_data (cur_bfd)->fdr + fd)->caux) | |
1375 | { | |
1376 | complain (&index_complaint, sym_name); | |
1377 | return builtin_type_int; | |
1378 | } | |
1379 | ax += aux_index; | |
1380 | ||
5f7b2142 | 1381 | /* Use aux as a type information record, map its basic type. */ |
99a15c64 | 1382 | ecoff_swap_tir_in (bigend, &ax->a_ti, t); |
cbba020f | 1383 | if (t->bt >= (sizeof (map_bt) / sizeof (*map_bt))) |
5f7b2142 | 1384 | { |
cbba020f | 1385 | complain (&basic_type_complaint, t->bt, sym_name); |
5f7b2142 ILT |
1386 | return builtin_type_int; |
1387 | } | |
1388 | if (map_bt[t->bt]) | |
1389 | { | |
1390 | tp = *map_bt[t->bt]; | |
5f7b2142 ILT |
1391 | } |
1392 | else | |
1393 | { | |
1394 | tp = NULL; | |
1395 | /* Cannot use builtin types -- build our own */ | |
1396 | switch (t->bt) | |
bd5635a1 | 1397 | { |
5f7b2142 ILT |
1398 | case btAdr: |
1399 | tp = lookup_pointer_type (builtin_type_void); | |
5f7b2142 ILT |
1400 | break; |
1401 | case btStruct: | |
1402 | type_code = TYPE_CODE_STRUCT; | |
5f7b2142 ILT |
1403 | break; |
1404 | case btUnion: | |
1405 | type_code = TYPE_CODE_UNION; | |
5f7b2142 ILT |
1406 | break; |
1407 | case btEnum: | |
1408 | type_code = TYPE_CODE_ENUM; | |
5f7b2142 ILT |
1409 | break; |
1410 | case btRange: | |
1411 | type_code = TYPE_CODE_RANGE; | |
5f7b2142 ILT |
1412 | break; |
1413 | case btSet: | |
1414 | type_code = TYPE_CODE_SET; | |
5f7b2142 ILT |
1415 | break; |
1416 | case btTypedef: | |
85999c05 PS |
1417 | /* alpha cc uses this for typedefs. The true type will be |
1418 | obtained by crossreferencing below. */ | |
1419 | type_code = TYPE_CODE_ERROR; | |
1420 | break; | |
5f7b2142 | 1421 | default: |
cbba020f | 1422 | complain (&basic_type_complaint, t->bt, sym_name); |
5f7b2142 | 1423 | return builtin_type_int; |
bd5635a1 | 1424 | } |
5f7b2142 | 1425 | } |
bd5635a1 | 1426 | |
5f7b2142 ILT |
1427 | /* Move on to next aux */ |
1428 | ax++; | |
d747e0af | 1429 | |
5f7b2142 ILT |
1430 | if (t->fBitfield) |
1431 | { | |
6ac14d25 PS |
1432 | /* Inhibit core dumps with some cfront generated objects that |
1433 | corrupt the TIR. */ | |
1434 | if (bs == (int *)NULL) | |
1435 | { | |
cbba020f | 1436 | complain (&bad_fbitfield_complaint, sym_name); |
6ac14d25 PS |
1437 | return builtin_type_int; |
1438 | } | |
5f7b2142 ILT |
1439 | *bs = AUX_GET_WIDTH (bigend, ax); |
1440 | ax++; | |
1441 | } | |
bd5635a1 | 1442 | |
5f7b2142 ILT |
1443 | /* All these types really point to some (common) MIPS type |
1444 | definition, and only the type-qualifiers fully identify | |
1445 | them. We'll make the same effort at sharing. */ | |
e7ff735c | 1446 | if (t->bt == btStruct || |
5f7b2142 ILT |
1447 | t->bt == btUnion || |
1448 | t->bt == btEnum || | |
e7ff735c JK |
1449 | |
1450 | /* btSet (I think) implies that the name is a tag name, not a typedef | |
1451 | name. This apparently is a MIPS extension for C sets. */ | |
5f7b2142 ILT |
1452 | t->bt == btSet) |
1453 | { | |
e7ff735c JK |
1454 | char *name; |
1455 | ||
85999c05 PS |
1456 | /* Try to cross reference this type, build new type on failure. */ |
1457 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
e7ff735c | 1458 | if (tp == (struct type *) NULL) |
85999c05 | 1459 | tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile); |
e7ff735c | 1460 | |
6ac14d25 PS |
1461 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1462 | Any type may be returned from cross_ref if file indirect entries | |
1463 | are corrupted. */ | |
1464 | if (TYPE_CODE (tp) != TYPE_CODE_STRUCT | |
1465 | && TYPE_CODE (tp) != TYPE_CODE_UNION | |
1466 | && TYPE_CODE (tp) != TYPE_CODE_ENUM) | |
e7ff735c | 1467 | { |
cbba020f | 1468 | complain (&unexpected_type_code_complaint, sym_name); |
6ac14d25 PS |
1469 | } |
1470 | else | |
1471 | { | |
1472 | ||
1473 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
1fdbc4d1 JK |
1474 | exception is if we guessed wrong re struct/union/enum. |
1475 | But for struct vs. union a wrong guess is harmless, so | |
1476 | don't complain(). */ | |
1477 | if ((TYPE_CODE (tp) == TYPE_CODE_ENUM | |
1478 | && type_code != TYPE_CODE_ENUM) | |
1479 | || (TYPE_CODE (tp) != TYPE_CODE_ENUM | |
1480 | && type_code == TYPE_CODE_ENUM)) | |
6ac14d25 | 1481 | { |
cbba020f | 1482 | complain (&bad_tag_guess_complaint, sym_name); |
1fdbc4d1 JK |
1483 | } |
1484 | ||
1485 | if (TYPE_CODE (tp) != type_code) | |
1486 | { | |
6ac14d25 PS |
1487 | TYPE_CODE (tp) = type_code; |
1488 | } | |
1fdbc4d1 | 1489 | |
6ac14d25 PS |
1490 | /* Do not set the tag name if it is a compiler generated tag name |
1491 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */ | |
1492 | if (name[0] == '.' || name[0] == '\0') | |
1493 | TYPE_TAG_NAME (tp) = NULL; | |
1494 | else if (TYPE_TAG_NAME (tp) == NULL | |
1495 | || !STREQ (TYPE_TAG_NAME (tp), name)) | |
1496 | TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name), | |
1497 | ¤t_objfile->type_obstack); | |
e7ff735c | 1498 | } |
e7ff735c JK |
1499 | } |
1500 | ||
1501 | /* All these types really point to some (common) MIPS type | |
1502 | definition, and only the type-qualifiers fully identify | |
6ac14d25 PS |
1503 | them. We'll make the same effort at sharing. |
1504 | FIXME: btIndirect cannot happen here as it is handled by the | |
1505 | switch t->bt above. And we are not doing any guessing on range types. */ | |
e7ff735c JK |
1506 | if (t->bt == btIndirect || |
1507 | t->bt == btRange) | |
1508 | { | |
1509 | char *name; | |
5f7b2142 | 1510 | |
85999c05 PS |
1511 | /* Try to cross reference this type, build new type on failure. */ |
1512 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
6c2e7392 | 1513 | if (tp == (struct type *) NULL) |
85999c05 | 1514 | tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile); |
5f7b2142 | 1515 | |
6ac14d25 PS |
1516 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1517 | Any type may be returned from cross_ref if file indirect entries | |
1518 | are corrupted. */ | |
1519 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) | |
1520 | { | |
cbba020f | 1521 | complain (&unexpected_type_code_complaint, sym_name); |
6ac14d25 PS |
1522 | } |
1523 | else | |
5f7b2142 | 1524 | { |
6ac14d25 PS |
1525 | /* Usually, TYPE_CODE(tp) is already type_code. The main |
1526 | exception is if we guessed wrong re struct/union/enum. */ | |
1527 | if (TYPE_CODE (tp) != type_code) | |
1528 | { | |
cbba020f | 1529 | complain (&bad_tag_guess_complaint, sym_name); |
6ac14d25 PS |
1530 | TYPE_CODE (tp) = type_code; |
1531 | } | |
1532 | if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name)) | |
1533 | TYPE_NAME (tp) = obsavestring (name, strlen (name), | |
1534 | ¤t_objfile->type_obstack); | |
bd5635a1 | 1535 | } |
5f7b2142 | 1536 | } |
85999c05 PS |
1537 | if (t->bt == btTypedef) |
1538 | { | |
1539 | char *name; | |
1540 | ||
1541 | /* Try to cross reference this type, it should succeed. */ | |
1542 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1543 | if (tp == (struct type *) NULL) | |
1544 | { | |
1545 | complain (&unable_to_cross_ref_complaint, sym_name); | |
1546 | tp = builtin_type_int; | |
1547 | } | |
1548 | } | |
bd5635a1 | 1549 | |
5f7b2142 ILT |
1550 | /* Deal with range types */ |
1551 | if (t->bt == btRange) | |
1552 | { | |
1553 | TYPE_NFIELDS (tp) = 2; | |
1554 | TYPE_FIELDS (tp) = ((struct field *) | |
1555 | TYPE_ALLOC (tp, 2 * sizeof (struct field))); | |
1556 | TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"), | |
1557 | ¤t_objfile->type_obstack); | |
1558 | TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax); | |
1559 | ax++; | |
1560 | TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"), | |
1561 | ¤t_objfile->type_obstack); | |
1562 | TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax); | |
1563 | ax++; | |
1564 | } | |
bd5635a1 | 1565 | |
5f7b2142 | 1566 | /* Parse all the type qualifiers now. If there are more |
6c2e7392 | 1567 | than 6 the game will continue in the next aux */ |
bd5635a1 | 1568 | |
99a15c64 PS |
1569 | while (1) |
1570 | { | |
bd5635a1 | 1571 | #define PARSE_TQ(tq) \ |
99a15c64 PS |
1572 | if (t->tq != tqNil) \ |
1573 | ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \ | |
1574 | else \ | |
1575 | break; | |
1576 | ||
1577 | PARSE_TQ (tq0); | |
1578 | PARSE_TQ (tq1); | |
1579 | PARSE_TQ (tq2); | |
1580 | PARSE_TQ (tq3); | |
1581 | PARSE_TQ (tq4); | |
1582 | PARSE_TQ (tq5); | |
bd5635a1 RP |
1583 | #undef PARSE_TQ |
1584 | ||
99a15c64 PS |
1585 | /* mips cc 2.x and gcc never put out continued aux entries. */ |
1586 | if (!t->continued) | |
1587 | break; | |
1588 | ||
1589 | ecoff_swap_tir_in (bigend, &ax->a_ti, t); | |
1590 | ax++; | |
5f7b2142 | 1591 | } |
99a15c64 PS |
1592 | |
1593 | /* Complain for illegal continuations due to corrupt aux entries. */ | |
1594 | if (t->continued) | |
1595 | complain (&bad_continued_complaint, sym_name); | |
1596 | ||
5f7b2142 | 1597 | return tp; |
bd5635a1 RP |
1598 | } |
1599 | ||
1600 | /* Make up a complex type from a basic one. Type is passed by | |
1601 | reference in TPP and side-effected as necessary. The type | |
1602 | qualifier TQ says how to handle the aux symbols at AX for | |
d747e0af MT |
1603 | the symbol SX we are currently analyzing. BIGEND says whether |
1604 | aux symbols are big-endian or little-endian. | |
bd5635a1 RP |
1605 | Returns the number of aux symbols we parsed. */ |
1606 | ||
3eaebb75 | 1607 | static int |
99a15c64 | 1608 | upgrade_type (fd, tpp, tq, ax, bigend, sym_name) |
85999c05 | 1609 | int fd; |
5f7b2142 ILT |
1610 | struct type **tpp; |
1611 | int tq; | |
1612 | union aux_ext *ax; | |
1613 | int bigend; | |
99a15c64 | 1614 | char *sym_name; |
bd5635a1 | 1615 | { |
5f7b2142 ILT |
1616 | int off; |
1617 | struct type *t; | |
1618 | ||
1619 | /* Used in array processing */ | |
1620 | int rf, id; | |
1621 | FDR *fh; | |
1622 | struct type *range; | |
1623 | struct type *indx; | |
1624 | int lower, upper; | |
1625 | RNDXR rndx; | |
1626 | ||
1627 | switch (tq) | |
1628 | { | |
1629 | case tqPtr: | |
1630 | t = lookup_pointer_type (*tpp); | |
1631 | *tpp = t; | |
1632 | return 0; | |
1633 | ||
1634 | case tqProc: | |
1635 | t = lookup_function_type (*tpp); | |
1636 | *tpp = t; | |
1637 | return 0; | |
1638 | ||
1639 | case tqArray: | |
1640 | off = 0; | |
1641 | ||
1642 | /* Determine and record the domain type (type of index) */ | |
6c2e7392 | 1643 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, &rndx); |
5f7b2142 ILT |
1644 | id = rndx.index; |
1645 | rf = rndx.rfd; | |
1646 | if (rf == 0xfff) | |
1647 | { | |
1648 | ax++; | |
1649 | rf = AUX_GET_ISYM (bigend, ax); | |
1650 | off++; | |
1651 | } | |
85999c05 | 1652 | fh = get_rfd (fd, rf); |
5f7b2142 | 1653 | |
85999c05 | 1654 | indx = parse_type (fd, |
99a15c64 PS |
1655 | ecoff_data (cur_bfd)->external_aux + fh->iauxBase, |
1656 | id, (int *) NULL, bigend, sym_name); | |
1657 | ||
1658 | /* The bounds type should be an integer type, but might be anything | |
1659 | else due to corrupt aux entries. */ | |
1660 | if (TYPE_CODE (indx) != TYPE_CODE_INT) | |
1661 | { | |
1662 | complain (&array_index_type_complaint, sym_name); | |
1663 | indx = builtin_type_int; | |
1664 | } | |
5f7b2142 ILT |
1665 | |
1666 | /* Get the bounds, and create the array type. */ | |
1667 | ax++; | |
1668 | lower = AUX_GET_DNLOW (bigend, ax); | |
1669 | ax++; | |
1670 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1671 | ax++; | |
1672 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1673 | ||
1674 | range = create_range_type ((struct type *) NULL, indx, | |
1675 | lower, upper); | |
1676 | ||
1677 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1678 | ||
1679 | /* Check whether supplied array element bit size matches | |
1680 | the known size of the element type. If this complaint | |
1681 | ends up not happening, we can remove this code. It's | |
1682 | here because we aren't sure we understand this *&%&$ | |
1683 | symbol format. */ | |
1684 | id = TYPE_LENGTH (TYPE_TARGET_TYPE (t)) << 3; /* bitsize */ | |
1685 | if (id == 0) | |
1686 | { | |
1687 | /* Most likely an undefined type */ | |
1688 | id = rf; | |
1689 | TYPE_LENGTH (TYPE_TARGET_TYPE (t)) = id >> 3; | |
1690 | } | |
1691 | if (id != rf) | |
99a15c64 | 1692 | complain (&array_bitsize_complaint, sym_name, rf); |
3eaebb75 | 1693 | |
5f7b2142 ILT |
1694 | *tpp = t; |
1695 | return 4 + off; | |
bd5635a1 | 1696 | |
5f7b2142 ILT |
1697 | case tqVol: |
1698 | /* Volatile -- currently ignored */ | |
1699 | return 0; | |
3eaebb75 | 1700 | |
5f7b2142 ILT |
1701 | case tqConst: |
1702 | /* Const -- currently ignored */ | |
1703 | return 0; | |
817bc7b8 | 1704 | |
5f7b2142 ILT |
1705 | default: |
1706 | complain (&unknown_type_qual_complaint, tq); | |
1707 | return 0; | |
1708 | } | |
bd5635a1 RP |
1709 | } |
1710 | ||
1711 | ||
6c2e7392 PS |
1712 | /* Parse a procedure descriptor record PR. Note that the procedure is |
1713 | parsed _after_ the local symbols, now we just insert the extra | |
1714 | information we need into a MIPS_EFI_SYMBOL_NAME symbol that has | |
1715 | already been placed in the procedure's main block. Note also that | |
1716 | images that have been partially stripped (ld -x) have been deprived | |
1717 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1718 | the offset of the first procedure for this FDR; we adjust the | |
b5d4d6d7 JK |
1719 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab |
1720 | to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol | |
1721 | in question, or NULL to use top_stack->cur_block. */ | |
9adb88b7 | 1722 | |
b5d4d6d7 | 1723 | static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long)); |
bd5635a1 | 1724 | |
d1bb1d41 | 1725 | static void |
b5d4d6d7 | 1726 | parse_procedure (pr, search_symtab, first_off) |
5f7b2142 | 1727 | PDR *pr; |
b5d4d6d7 | 1728 | struct symtab *search_symtab; |
6c2e7392 | 1729 | unsigned long first_off; |
bd5635a1 | 1730 | { |
b5d4d6d7 | 1731 | struct symbol *s, *i; |
5f7b2142 ILT |
1732 | struct block *b; |
1733 | struct mips_extra_func_info *e; | |
1734 | char *sh_name; | |
1735 | ||
6c2e7392 PS |
1736 | /* Simple rule to find files linked "-x" */ |
1737 | if (cur_fdr->rss == -1) | |
5f7b2142 | 1738 | { |
6c2e7392 PS |
1739 | if (pr->isym == -1) |
1740 | { | |
1741 | /* Static procedure at address pr->adr. Sigh. */ | |
99a15c64 | 1742 | complain (&pdr_static_symbol_complaint, (unsigned long) pr->adr); |
6c2e7392 PS |
1743 | return; |
1744 | } | |
1745 | else | |
1746 | { | |
1747 | /* external */ | |
1748 | EXTR she; | |
1749 | ||
6ac14d25 PS |
1750 | (*ecoff_backend (cur_bfd)->swap_ext_in) |
1751 | (cur_bfd, | |
1752 | ((char *) ecoff_data (cur_bfd)->external_ext | |
1753 | + pr->isym * ecoff_backend (cur_bfd)->external_ext_size), | |
1754 | &she); | |
6c2e7392 PS |
1755 | sh_name = ecoff_data (cur_bfd)->ssext + she.asym.iss; |
1756 | } | |
5f7b2142 | 1757 | } |
6c2e7392 PS |
1758 | else |
1759 | { | |
1760 | /* Full symbols */ | |
1761 | SYMR sh; | |
1762 | ||
6ac14d25 PS |
1763 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
1764 | (cur_bfd, | |
1765 | ((char *) ecoff_data (cur_bfd)->external_sym | |
1766 | + ((cur_fdr->isymBase + pr->isym) | |
1767 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
1768 | &sh); | |
6c2e7392 PS |
1769 | sh_name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
1770 | } | |
1771 | ||
b5d4d6d7 | 1772 | if (search_symtab != NULL) |
6c2e7392 | 1773 | { |
b5d4d6d7 JK |
1774 | #if 0 |
1775 | /* This loses both in the case mentioned (want a static, find a global), | |
1776 | but also if we are looking up a non-mangled name which happens to | |
1777 | match the name of a mangled function. */ | |
1778 | /* We have to save the cur_fdr across the call to lookup_symbol. | |
1779 | If the pdr is for a static function and if a global function with | |
1780 | the same name exists, lookup_symbol will eventually read in the symtab | |
1781 | for the global function and clobber cur_fdr. */ | |
1782 | FDR *save_cur_fdr = cur_fdr; | |
1783 | s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL); | |
1784 | cur_fdr = save_cur_fdr; | |
1785 | #else | |
1786 | s = mylookup_symbol | |
1787 | (sh_name, | |
1788 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK), | |
1789 | VAR_NAMESPACE, | |
1790 | LOC_BLOCK); | |
1791 | #endif | |
1792 | } | |
1793 | else | |
1794 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
1795 | VAR_NAMESPACE, LOC_BLOCK); | |
9adb88b7 | 1796 | |
b5d4d6d7 JK |
1797 | if (s != 0) |
1798 | { | |
1799 | b = SYMBOL_BLOCK_VALUE (s); | |
1800 | } | |
1801 | else | |
1802 | { | |
1803 | complain (&pdr_for_nonsymbol_complaint, sh_name); | |
b303297a | 1804 | #if 1 |
b5d4d6d7 | 1805 | return; |
dac4929a | 1806 | #else |
817bc7b8 | 1807 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ |
b5d4d6d7 JK |
1808 | s = new_symbol (sh_name); |
1809 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1810 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
1811 | /* Donno its type, hope int is ok */ | |
1812 | SYMBOL_TYPE (s) = lookup_function_type (builtin_type_int); | |
1813 | add_symbol (s, top_stack->cur_block); | |
1814 | /* Wont have symbols for this one */ | |
1815 | b = new_block (2); | |
1816 | SYMBOL_BLOCK_VALUE (s) = b; | |
1817 | BLOCK_FUNCTION (b) = s; | |
1818 | BLOCK_START (b) = pr->adr; | |
1819 | /* BOUND used to be the end of procedure's text, but the | |
1820 | argument is no longer passed in. */ | |
1821 | BLOCK_END (b) = bound; | |
1822 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1823 | add_block (b, top_stack->cur_st); | |
817bc7b8 | 1824 | #endif |
9adb88b7 | 1825 | } |
d1bb1d41 | 1826 | |
b5d4d6d7 JK |
1827 | i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST); |
1828 | ||
1829 | if (i) | |
5f7b2142 | 1830 | { |
b5d4d6d7 | 1831 | e = (struct mips_extra_func_info *) SYMBOL_VALUE (i); |
5f7b2142 ILT |
1832 | e->pdr = *pr; |
1833 | e->pdr.isym = (long) s; | |
6c2e7392 | 1834 | e->pdr.adr += cur_fdr->adr - first_off; |
e157305c PS |
1835 | |
1836 | /* Correct incorrect setjmp procedure descriptor from the library | |
1837 | to make backtrace through setjmp work. */ | |
99a15c64 | 1838 | if (e->pdr.pcreg == 0 && STREQ (sh_name, "setjmp")) |
e157305c PS |
1839 | { |
1840 | complain (&bad_setjmp_pdr_complaint, 0); | |
1841 | e->pdr.pcreg = RA_REGNUM; | |
1842 | e->pdr.regmask = 0x80000000; | |
1843 | e->pdr.regoffset = -4; | |
1844 | } | |
99a15c64 PS |
1845 | |
1846 | /* Fake PC_REGNUM for alpha __sigtramp so that read_next_frame_reg | |
1847 | will use the saved user pc from the sigcontext. */ | |
1848 | if (STREQ (sh_name, "__sigtramp")) | |
1849 | e->pdr.pcreg = PC_REGNUM; | |
5f7b2142 | 1850 | } |
bd5635a1 RP |
1851 | } |
1852 | ||
1853 | /* Parse the external symbol ES. Just call parse_symbol() after | |
1854 | making sure we know where the aux are for it. For procedures, | |
1855 | parsing of the PDRs has already provided all the needed | |
1856 | information, we only parse them if SKIP_PROCEDURES is false, | |
101f259c | 1857 | and only if this causes no symbol duplication. |
d747e0af | 1858 | BIGEND says whether aux entries are big-endian or little-endian. |
101f259c JG |
1859 | |
1860 | This routine clobbers top_stack->cur_block and ->cur_st. */ | |
bd5635a1 | 1861 | |
4ad1963e | 1862 | static void |
5f7b2142 ILT |
1863 | parse_external (es, skip_procedures, bigend) |
1864 | EXTR *es; | |
1865 | int skip_procedures; | |
1866 | int bigend; | |
bd5635a1 | 1867 | { |
5f7b2142 | 1868 | union aux_ext *ax; |
bd5635a1 | 1869 | |
5f7b2142 ILT |
1870 | if (es->ifd != ifdNil) |
1871 | { | |
1872 | cur_fd = es->ifd; | |
6c2e7392 PS |
1873 | cur_fdr = ecoff_data (cur_bfd)->fdr + cur_fd; |
1874 | ax = ecoff_data (cur_bfd)->external_aux + cur_fdr->iauxBase; | |
5f7b2142 ILT |
1875 | } |
1876 | else | |
1877 | { | |
6c2e7392 | 1878 | cur_fdr = ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
1879 | ax = 0; |
1880 | } | |
bd5635a1 | 1881 | |
5f7b2142 ILT |
1882 | /* Reading .o files */ |
1883 | if (es->asym.sc == scUndefined || es->asym.sc == scNil) | |
1884 | { | |
1885 | char *what; | |
1886 | switch (es->asym.st) | |
1887 | { | |
99a15c64 PS |
1888 | case stNil: |
1889 | /* These are generated for static symbols in .o files, | |
1890 | ignore them. */ | |
1891 | return; | |
5f7b2142 | 1892 | case stStaticProc: |
bd5635a1 | 1893 | case stProc: |
5f7b2142 ILT |
1894 | what = "procedure"; |
1895 | n_undef_procs++; | |
1896 | break; | |
bd5635a1 | 1897 | case stGlobal: |
5f7b2142 ILT |
1898 | what = "variable"; |
1899 | n_undef_vars++; | |
1900 | break; | |
bd5635a1 | 1901 | case stLabel: |
5f7b2142 ILT |
1902 | what = "label"; |
1903 | n_undef_labels++; | |
1904 | break; | |
1905 | default: | |
1906 | what = "symbol"; | |
1907 | break; | |
1908 | } | |
1909 | n_undef_symbols++; | |
1910 | /* FIXME: Turn this into a complaint? */ | |
1911 | if (info_verbose) | |
1912 | printf_filtered ("Warning: %s `%s' is undefined (in %s)\n", | |
6c2e7392 PS |
1913 | what, |
1914 | ecoff_data (cur_bfd)->ssext + es->asym.iss, | |
1915 | fdr_name (cur_fdr)); | |
5f7b2142 ILT |
1916 | return; |
1917 | } | |
1918 | ||
1919 | switch (es->asym.st) | |
1920 | { | |
1921 | case stProc: | |
1922 | /* If we have full symbols we do not need more */ | |
1923 | if (skip_procedures) | |
1924 | return; | |
6c2e7392 PS |
1925 | if (mylookup_symbol (ecoff_data (cur_bfd)->ssext + es->asym.iss, |
1926 | top_stack->cur_block, | |
5f7b2142 ILT |
1927 | VAR_NAMESPACE, LOC_BLOCK)) |
1928 | break; | |
1929 | /* fall through */ | |
1930 | case stGlobal: | |
1931 | case stLabel: | |
6c2e7392 PS |
1932 | /* Note that the case of a symbol with indexNil must be handled |
1933 | anyways by parse_symbol(). */ | |
6ac14d25 | 1934 | parse_symbol (&es->asym, ax, (char *) NULL, bigend); |
5f7b2142 ILT |
1935 | break; |
1936 | default: | |
1937 | break; | |
1938 | } | |
bd5635a1 RP |
1939 | } |
1940 | ||
1941 | /* Parse the line number info for file descriptor FH into | |
1942 | GDB's linetable LT. MIPS' encoding requires a little bit | |
1943 | of magic to get things out. Note also that MIPS' line | |
1944 | numbers can go back and forth, apparently we can live | |
1945 | with that and do not need to reorder our linetables */ | |
1946 | ||
4ad1963e | 1947 | static void |
99a15c64 | 1948 | parse_lines (fh, pr, lt, maxlines) |
5f7b2142 | 1949 | FDR *fh; |
6c2e7392 | 1950 | PDR *pr; |
5f7b2142 | 1951 | struct linetable *lt; |
99a15c64 | 1952 | int maxlines; |
bd5635a1 | 1953 | { |
6c2e7392 | 1954 | unsigned char *base; |
5f7b2142 ILT |
1955 | int j, k; |
1956 | int delta, count, lineno = 0; | |
6c2e7392 | 1957 | unsigned long first_off = pr->adr; |
5f7b2142 | 1958 | |
cbba020f | 1959 | if (fh->cbLine == 0) |
5f7b2142 ILT |
1960 | return; |
1961 | ||
6c2e7392 PS |
1962 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset; |
1963 | ||
5f7b2142 | 1964 | /* Scan by procedure descriptors */ |
6c2e7392 PS |
1965 | k = 0; |
1966 | for (j = 0; j < fh->cpd; j++, pr++) | |
5f7b2142 | 1967 | { |
99a15c64 | 1968 | long l; |
6c2e7392 | 1969 | unsigned long adr; |
99a15c64 | 1970 | unsigned char *halt; |
5f7b2142 ILT |
1971 | |
1972 | /* No code for this one */ | |
1973 | if (pr->iline == ilineNil || | |
1974 | pr->lnLow == -1 || pr->lnHigh == -1) | |
1975 | continue; | |
6c2e7392 | 1976 | |
99a15c64 PS |
1977 | /* Determine start and end address of compressed line bytes for |
1978 | this procedure. */ | |
1979 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset; | |
1980 | if (j != (fh->cpd - 1)) | |
1981 | halt = base + pr[1].cbLineOffset; | |
5f7b2142 | 1982 | else |
99a15c64 PS |
1983 | halt = base + fh->cbLine; |
1984 | base += pr->cbLineOffset; | |
6c2e7392 | 1985 | |
6c2e7392 PS |
1986 | adr = fh->adr + pr->adr - first_off; |
1987 | l = adr >> 2; /* in words */ | |
99a15c64 | 1988 | for (lineno = pr->lnLow; base < halt; ) |
5f7b2142 ILT |
1989 | { |
1990 | count = *base & 0x0f; | |
1991 | delta = *base++ >> 4; | |
1992 | if (delta >= 8) | |
1993 | delta -= 16; | |
1994 | if (delta == -8) | |
1995 | { | |
1996 | delta = (base[0] << 8) | base[1]; | |
1997 | if (delta >= 0x8000) | |
1998 | delta -= 0x10000; | |
1999 | base += 2; | |
2000 | } | |
2001 | lineno += delta; /* first delta is 0 */ | |
99a15c64 PS |
2002 | |
2003 | /* Complain if the line table overflows. Could happen | |
2004 | with corrupt binaries. */ | |
2005 | if (lt->nitems >= maxlines) | |
2006 | { | |
2007 | complain (&bad_linetable_guess_complaint, fdr_name (fh)); | |
2008 | break; | |
2009 | } | |
5f7b2142 ILT |
2010 | k = add_line (lt, lineno, l, k); |
2011 | l += count + 1; | |
bd5635a1 | 2012 | } |
5f7b2142 | 2013 | } |
bd5635a1 | 2014 | } |
101f259c JG |
2015 | \f |
2016 | /* Master parsing procedure for first-pass reading of file symbols | |
6c2e7392 | 2017 | into a partial_symtab. */ |
bd5635a1 | 2018 | |
d747e0af | 2019 | static void |
6c2e7392 | 2020 | parse_partial_symbols (objfile, section_offsets) |
d4ea2aba | 2021 | struct objfile *objfile; |
dac4929a | 2022 | struct section_offsets *section_offsets; |
bd5635a1 | 2023 | { |
6ac14d25 PS |
2024 | const struct ecoff_backend_data * const backend = ecoff_backend (cur_bfd); |
2025 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
2026 | const bfd_size_type external_rfd_size = backend->external_rfd_size; | |
2027 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
2028 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
2029 | = backend->swap_ext_in; | |
2030 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2031 | = backend->swap_sym_in; | |
2032 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
2033 | = backend->swap_rfd_in; | |
5f7b2142 | 2034 | int f_idx, s_idx; |
6c2e7392 | 2035 | HDRR *hdr = &ecoff_data (cur_bfd)->symbolic_header; |
5f7b2142 ILT |
2036 | /* Running pointers */ |
2037 | FDR *fh; | |
6ac14d25 PS |
2038 | char *ext_out; |
2039 | char *ext_out_end; | |
6c2e7392 PS |
2040 | EXTR *ext_block; |
2041 | register EXTR *ext_in; | |
2042 | EXTR *ext_in_end; | |
2043 | SYMR sh; | |
5f7b2142 ILT |
2044 | struct partial_symtab *pst; |
2045 | ||
2046 | int past_first_source_file = 0; | |
2047 | ||
2048 | /* List of current psymtab's include files */ | |
2049 | char **psymtab_include_list; | |
2050 | int includes_allocated; | |
2051 | int includes_used; | |
6c2e7392 | 2052 | EXTR *extern_tab; |
5f7b2142 ILT |
2053 | struct pst_map *fdr_to_pst; |
2054 | /* Index within current psymtab dependency list */ | |
2055 | struct partial_symtab **dependency_list; | |
2056 | int dependencies_used, dependencies_allocated; | |
2057 | struct cleanup *old_chain; | |
2058 | char *name; | |
cbba020f | 2059 | enum language prev_language; |
5f7b2142 | 2060 | |
6c2e7392 PS |
2061 | extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack, |
2062 | sizeof (EXTR) * hdr->iextMax); | |
5f7b2142 ILT |
2063 | |
2064 | includes_allocated = 30; | |
2065 | includes_used = 0; | |
2066 | psymtab_include_list = (char **) alloca (includes_allocated * | |
2067 | sizeof (char *)); | |
2068 | next_symbol_text_func = mips_next_symbol_text; | |
2069 | ||
2070 | dependencies_allocated = 30; | |
2071 | dependencies_used = 0; | |
2072 | dependency_list = | |
2073 | (struct partial_symtab **) alloca (dependencies_allocated * | |
2074 | sizeof (struct partial_symtab *)); | |
2075 | ||
2076 | last_source_file = NULL; | |
2077 | ||
2078 | /* | |
6c2e7392 PS |
2079 | * Big plan: |
2080 | * | |
2081 | * Only parse the Local and External symbols, and the Relative FDR. | |
2082 | * Fixup enough of the loader symtab to be able to use it. | |
2083 | * Allocate space only for the file's portions we need to | |
2084 | * look at. (XXX) | |
2085 | */ | |
817bc7b8 | 2086 | |
5f7b2142 ILT |
2087 | max_gdbinfo = 0; |
2088 | max_glevel = MIN_GLEVEL; | |
2089 | ||
2090 | /* Allocate the map FDR -> PST. | |
2091 | Minor hack: -O3 images might claim some global data belongs | |
2092 | to FDR -1. We`ll go along with that */ | |
2093 | fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst); | |
2094 | old_chain = make_cleanup (free, fdr_to_pst); | |
2095 | fdr_to_pst++; | |
2096 | { | |
2097 | struct partial_symtab *pst = new_psymtab ("", objfile); | |
2098 | fdr_to_pst[-1].pst = pst; | |
2099 | FDR_IDX (pst) = -1; | |
2100 | } | |
2101 | ||
e7e02420 PS |
2102 | /* Allocate the global pending list. */ |
2103 | ECOFF_PENDING_LIST (objfile) = | |
2104 | ((struct mips_pending **) | |
2105 | obstack_alloc (&objfile->psymbol_obstack, | |
2106 | hdr->ifdMax * sizeof (struct mips_pending *))); | |
2107 | memset ((PTR) ECOFF_PENDING_LIST (objfile), 0, | |
2108 | hdr->ifdMax * sizeof (struct mips_pending *)); | |
2109 | ||
6c2e7392 PS |
2110 | /* Pass 0 over external syms: swap them in. */ |
2111 | ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR)); | |
2112 | make_cleanup (free, ext_block); | |
2113 | ||
6ac14d25 PS |
2114 | ext_out = (char *) ecoff_data (cur_bfd)->external_ext; |
2115 | ext_out_end = ext_out + hdr->iextMax * external_ext_size; | |
6c2e7392 | 2116 | ext_in = ext_block; |
6ac14d25 PS |
2117 | for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++) |
2118 | (*swap_ext_in) (cur_bfd, ext_out, ext_in); | |
6c2e7392 | 2119 | |
5f7b2142 | 2120 | /* Pass 1 over external syms: Presize and partition the list */ |
6c2e7392 PS |
2121 | ext_in = ext_block; |
2122 | ext_in_end = ext_in + hdr->iextMax; | |
2123 | for (; ext_in < ext_in_end; ext_in++) | |
2124 | fdr_to_pst[ext_in->ifd].n_globals++; | |
817bc7b8 | 2125 | |
5f7b2142 ILT |
2126 | /* Pass 1.5 over files: partition out global symbol space */ |
2127 | s_idx = 0; | |
2128 | for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) | |
2129 | { | |
2130 | fdr_to_pst[f_idx].globals_offset = s_idx; | |
2131 | s_idx += fdr_to_pst[f_idx].n_globals; | |
2132 | fdr_to_pst[f_idx].n_globals = 0; | |
d4ea2aba | 2133 | } |
bd5635a1 | 2134 | |
5f7b2142 | 2135 | /* Pass 2 over external syms: fill in external symbols */ |
6c2e7392 PS |
2136 | ext_in = ext_block; |
2137 | ext_in_end = ext_in + hdr->iextMax; | |
2138 | for (; ext_in < ext_in_end; ext_in++) | |
5f7b2142 ILT |
2139 | { |
2140 | enum minimal_symbol_type ms_type = mst_text; | |
bd5635a1 | 2141 | |
6c2e7392 PS |
2142 | extern_tab[fdr_to_pst[ext_in->ifd].globals_offset |
2143 | + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in; | |
d4ea2aba | 2144 | |
6c2e7392 | 2145 | if (ext_in->asym.sc == scUndefined || ext_in->asym.sc == scNil) |
5f7b2142 | 2146 | continue; |
101f259c | 2147 | |
6c2e7392 PS |
2148 | name = ecoff_data (cur_bfd)->ssext + ext_in->asym.iss; |
2149 | switch (ext_in->asym.st) | |
5f7b2142 | 2150 | { |
817bc7b8 | 2151 | case stProc: |
5f7b2142 | 2152 | break; |
85999c05 PS |
2153 | case stStaticProc: |
2154 | ms_type = mst_file_text; | |
2155 | break; | |
817bc7b8 | 2156 | case stGlobal: |
6ac14d25 PS |
2157 | if (ext_in->asym.sc == scData |
2158 | || ext_in->asym.sc == scSData | |
2159 | || ext_in->asym.sc == scRData) | |
2160 | ms_type = mst_data; | |
2161 | else | |
2162 | ms_type = mst_bss; | |
5f7b2142 | 2163 | break; |
817bc7b8 | 2164 | case stLabel: |
6ac14d25 PS |
2165 | if (ext_in->asym.sc == scAbs) |
2166 | ms_type = mst_abs; | |
2167 | else if (ext_in->asym.sc == scText) | |
2168 | ms_type = mst_text; | |
2169 | else if (ext_in->asym.sc == scData | |
2170 | || ext_in->asym.sc == scSData | |
2171 | || ext_in->asym.sc == scRData) | |
2172 | ms_type = mst_data; | |
2173 | else | |
2174 | ms_type = mst_bss; | |
5f7b2142 | 2175 | break; |
99a15c64 PS |
2176 | case stLocal: |
2177 | /* The alpha has the section start addresses in stLocal symbols | |
2178 | whose name starts with a `.'. Skip those but complain for all | |
2179 | other stLocal symbols. */ | |
2180 | if (name[0] == '.') | |
2181 | continue; | |
2182 | /* Fall through. */ | |
817bc7b8 | 2183 | default: |
5f7b2142 | 2184 | ms_type = mst_unknown; |
6c2e7392 | 2185 | complain (&unknown_ext_complaint, name); |
bd5635a1 | 2186 | } |
6c2e7392 | 2187 | prim_record_minimal_symbol (name, ext_in->asym.value, ms_type); |
817bc7b8 | 2188 | } |
bd5635a1 | 2189 | |
5f7b2142 ILT |
2190 | /* Pass 3 over files, over local syms: fill in static symbols */ |
2191 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) | |
2192 | { | |
2193 | struct partial_symtab *save_pst; | |
6c2e7392 | 2194 | EXTR *ext_ptr; |
dac4929a | 2195 | |
6c2e7392 | 2196 | cur_fdr = fh = ecoff_data (cur_bfd)->fdr + f_idx; |
c55e6167 | 2197 | |
5f7b2142 ILT |
2198 | if (fh->csym == 0) |
2199 | { | |
2200 | fdr_to_pst[f_idx].pst = NULL; | |
2201 | continue; | |
817bc7b8 | 2202 | } |
6c2e7392 PS |
2203 | pst = start_psymtab_common (objfile, section_offsets, |
2204 | fdr_name (fh), | |
5f7b2142 ILT |
2205 | fh->cpd ? fh->adr : 0, |
2206 | objfile->global_psymbols.next, | |
2207 | objfile->static_psymbols.next); | |
2208 | pst->read_symtab_private = ((char *) | |
2209 | obstack_alloc (&objfile->psymbol_obstack, | |
2210 | sizeof (struct symloc))); | |
6c2e7392 | 2211 | memset ((PTR) pst->read_symtab_private, 0, sizeof (struct symloc)); |
5f7b2142 ILT |
2212 | |
2213 | save_pst = pst; | |
5f7b2142 | 2214 | FDR_IDX (pst) = f_idx; |
6c2e7392 | 2215 | CUR_BFD (pst) = cur_bfd; |
5f7b2142 ILT |
2216 | |
2217 | /* The way to turn this into a symtab is to call... */ | |
2218 | pst->read_symtab = mipscoff_psymtab_to_symtab; | |
2219 | ||
e7e02420 PS |
2220 | /* Set up language for the pst. |
2221 | The language from the FDR is used if it is unambigious (e.g. cfront | |
2222 | with native cc and g++ will set the language to C). | |
2223 | Otherwise we have to deduce the language from the filename. | |
2224 | Native ecoff has every header file in a separate FDR, so | |
2225 | deduce_language_from_filename will return language_unknown for | |
2226 | a header file, which is not what we want. | |
cbba020f PS |
2227 | But the FDRs for the header files are after the FDR for the source |
2228 | file, so we can assign the language of the source file to the | |
2229 | following header files. Then we save the language in the private | |
2230 | pst data so that we can reuse it when building symtabs. */ | |
2231 | prev_language = psymtab_language; | |
e7e02420 PS |
2232 | |
2233 | switch (fh->lang) | |
2234 | { | |
2235 | case langCplusplusV2: | |
2236 | psymtab_language = language_cplus; | |
2237 | break; | |
2238 | default: | |
2239 | psymtab_language = deduce_language_from_filename (fdr_name (fh)); | |
2240 | break; | |
2241 | } | |
cbba020f PS |
2242 | if (psymtab_language == language_unknown) |
2243 | psymtab_language = prev_language; | |
2244 | PST_PRIVATE (pst)->pst_language = psymtab_language; | |
018ab14f | 2245 | |
5f7b2142 ILT |
2246 | pst->texthigh = pst->textlow; |
2247 | ||
2248 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
6c2e7392 PS |
2249 | This symbol is emitted by mips-tfile to signal that the |
2250 | current object file uses encapsulated stabs instead of mips | |
2251 | ecoff for local symbols. (It is the second symbol because | |
2252 | the first symbol is the stFile used to signal the start of a | |
2253 | file). */ | |
2254 | processing_gcc_compilation = 0; | |
2255 | if (fh->csym >= 2) | |
2256 | { | |
6ac14d25 PS |
2257 | (*swap_sym_in) (cur_bfd, |
2258 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2259 | + (fh->isymBase + 1) * external_sym_size), | |
2260 | &sh); | |
6c2e7392 PS |
2261 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2262 | stabs_symbol)) | |
2263 | processing_gcc_compilation = 2; | |
2264 | } | |
2265 | ||
2266 | if (processing_gcc_compilation != 0) | |
5f7b2142 | 2267 | { |
5f7b2142 ILT |
2268 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) |
2269 | { | |
2270 | int type_code; | |
2271 | char *namestring; | |
6c2e7392 | 2272 | |
6ac14d25 PS |
2273 | (*swap_sym_in) (cur_bfd, |
2274 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2275 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2276 | &sh); | |
2277 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2278 | if (!ECOFF_IS_STAB (&sh)) | |
5f7b2142 | 2279 | { |
6c2e7392 | 2280 | if (sh.st == stProc || sh.st == stStaticProc) |
5f7b2142 | 2281 | { |
6c2e7392 PS |
2282 | long procaddr = sh.value; |
2283 | long isym; | |
2284 | ||
2285 | ||
2286 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2287 | (ecoff_data (cur_bfd)->external_aux | |
2288 | + fh->iauxBase | |
2289 | + sh.index)); | |
6ac14d25 PS |
2290 | (*swap_sym_in) (cur_bfd, |
2291 | (((char *) | |
2292 | ecoff_data (cur_bfd)->external_sym) | |
2293 | + ((fh->isymBase + isym - 1) | |
2294 | * external_sym_size)), | |
2295 | &sh); | |
6c2e7392 | 2296 | if (sh.st == stEnd) |
5f7b2142 | 2297 | { |
6c2e7392 | 2298 | long high = procaddr + sh.value; |
5f7b2142 ILT |
2299 | if (high > pst->texthigh) |
2300 | pst->texthigh = high; | |
101f259c | 2301 | } |
7e258d18 | 2302 | } |
5f7b2142 | 2303 | continue; |
817bc7b8 | 2304 | } |
6c2e7392 PS |
2305 | #define SET_NAMESTRING() \ |
2306 | namestring = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss | |
7e258d18 | 2307 | #define CUR_SYMBOL_TYPE type_code |
6c2e7392 | 2308 | #define CUR_SYMBOL_VALUE sh.value |
dac4929a | 2309 | #define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\ |
7e258d18 PB |
2310 | pst = save_pst |
2311 | #define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps) (void)0 | |
7e258d18 PB |
2312 | #define HANDLE_RBRAC(val) \ |
2313 | if ((val) > save_pst->texthigh) save_pst->texthigh = (val); | |
7e258d18 | 2314 | #include "partial-stab.h" |
7e258d18 | 2315 | } |
817bc7b8 | 2316 | } |
5f7b2142 ILT |
2317 | else |
2318 | { | |
5f7b2142 ILT |
2319 | for (cur_sdx = 0; cur_sdx < fh->csym;) |
2320 | { | |
2321 | char *name; | |
2322 | enum address_class class; | |
5f7b2142 | 2323 | |
6ac14d25 PS |
2324 | (*swap_sym_in) (cur_bfd, |
2325 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2326 | + ((fh->isymBase + cur_sdx) | |
2327 | * external_sym_size)), | |
2328 | &sh); | |
6c2e7392 | 2329 | |
6ac14d25 | 2330 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 ILT |
2331 | { |
2332 | cur_sdx++; | |
2333 | continue; | |
817bc7b8 | 2334 | } |
101f259c | 2335 | |
6ac14d25 PS |
2336 | /* Non absolute static symbols go into the minimal table. */ |
2337 | if (sh.sc == scUndefined || sh.sc == scNil | |
2338 | || (sh.index == indexNil | |
2339 | && (sh.st != stStatic || sh.sc == scAbs))) | |
5f7b2142 ILT |
2340 | { |
2341 | /* FIXME, premature? */ | |
2342 | cur_sdx++; | |
2343 | continue; | |
817bc7b8 | 2344 | } |
dac4929a | 2345 | |
6c2e7392 | 2346 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
817bc7b8 | 2347 | |
6c2e7392 | 2348 | switch (sh.st) |
5f7b2142 ILT |
2349 | { |
2350 | long high; | |
2351 | long procaddr; | |
2352 | int new_sdx; | |
2353 | ||
5f7b2142 | 2354 | case stStaticProc: /* Function */ |
6ac14d25 PS |
2355 | /* I believe this is used only for file-local functions. |
2356 | The comment in symconst.h ("load time only static procs") | |
2357 | isn't particularly clear on this point. */ | |
2358 | prim_record_minimal_symbol (name, sh.value, mst_file_text); | |
2359 | /* FALLTHROUGH */ | |
2360 | ||
2361 | case stProc: /* Asm labels apparently */ | |
5f7b2142 ILT |
2362 | ADD_PSYMBOL_TO_LIST (name, strlen (name), |
2363 | VAR_NAMESPACE, LOC_BLOCK, | |
6c2e7392 | 2364 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2365 | psymtab_language, objfile); |
2366 | /* Skip over procedure to next one. */ | |
6c2e7392 | 2367 | if (sh.index >= hdr->iauxMax) |
5f7b2142 ILT |
2368 | { |
2369 | /* Should not happen, but does when cross-compiling | |
2370 | with the MIPS compiler. FIXME -- pull later. */ | |
2371 | complain (&index_complaint, name); | |
2372 | new_sdx = cur_sdx + 1; /* Don't skip at all */ | |
2373 | } | |
2374 | else | |
2375 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
6c2e7392 PS |
2376 | (ecoff_data (cur_bfd)->external_aux |
2377 | + fh->iauxBase | |
2378 | + sh.index)); | |
2379 | procaddr = sh.value; | |
5f7b2142 ILT |
2380 | |
2381 | if (new_sdx <= cur_sdx) | |
2382 | { | |
2383 | /* This should not happen either... FIXME. */ | |
2384 | complain (&aux_index_complaint, name); | |
2385 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
7e258d18 | 2386 | } |
817bc7b8 | 2387 | |
5f7b2142 | 2388 | cur_sdx = new_sdx; |
6ac14d25 PS |
2389 | (*swap_sym_in) (cur_bfd, |
2390 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2391 | + ((fh->isymBase + cur_sdx - 1) | |
2392 | * external_sym_size)), | |
2393 | &sh); | |
6c2e7392 | 2394 | if (sh.st != stEnd) |
817bc7b8 | 2395 | continue; |
6c2e7392 | 2396 | high = procaddr + sh.value; |
5f7b2142 ILT |
2397 | if (high > pst->texthigh) |
2398 | pst->texthigh = high; | |
2399 | continue; | |
2400 | ||
2401 | case stStatic: /* Variable */ | |
6ac14d25 PS |
2402 | if (sh.sc == scData || sh.sc == scSData || sh.sc == scRData) |
2403 | prim_record_minimal_symbol (name, sh.value, mst_file_data); | |
2404 | else | |
2405 | prim_record_minimal_symbol (name, sh.value, mst_file_bss); | |
5f7b2142 ILT |
2406 | class = LOC_STATIC; |
2407 | break; | |
2408 | ||
2409 | case stTypedef:/* Typedef */ | |
2410 | class = LOC_TYPEDEF; | |
2411 | break; | |
2412 | ||
2413 | case stConstant: /* Constant decl */ | |
2414 | class = LOC_CONST; | |
2415 | break; | |
2416 | ||
2417 | case stUnion: | |
2418 | case stStruct: | |
2419 | case stEnum: | |
2420 | case stBlock: /* { }, str, un, enum*/ | |
e7ff735c | 2421 | if (sh.sc == scInfo || sh.sc == scCommon) |
5f7b2142 ILT |
2422 | { |
2423 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2424 | STRUCT_NAMESPACE, LOC_TYPEDEF, | |
2425 | objfile->static_psymbols, | |
6c2e7392 | 2426 | sh.value, |
5f7b2142 ILT |
2427 | psymtab_language, objfile); |
2428 | } | |
2429 | /* Skip over the block */ | |
6c2e7392 | 2430 | new_sdx = sh.index; |
5f7b2142 ILT |
2431 | if (new_sdx <= cur_sdx) |
2432 | { | |
2433 | /* This happens with the Ultrix kernel. */ | |
2434 | complain (&block_index_complaint, name); | |
2435 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
2436 | } | |
2437 | cur_sdx = new_sdx; | |
2438 | continue; | |
2439 | ||
2440 | case stFile: /* File headers */ | |
2441 | case stLabel: /* Labels */ | |
2442 | case stEnd: /* Ends of files */ | |
2443 | goto skip; | |
2444 | ||
2445 | case stLocal: /* Local variables */ | |
2446 | /* Normally these are skipped because we skip over | |
2447 | all blocks we see. However, these can occur | |
2448 | as visible symbols in a .h file that contains code. */ | |
2449 | goto skip; | |
2450 | ||
2451 | default: | |
2452 | /* Both complaints are valid: one gives symbol name, | |
2453 | the other the offending symbol type. */ | |
6c2e7392 PS |
2454 | complain (&unknown_sym_complaint, name); |
2455 | complain (&unknown_st_complaint, sh.st); | |
5f7b2142 ILT |
2456 | cur_sdx++; |
2457 | continue; | |
101f259c | 2458 | } |
5f7b2142 ILT |
2459 | /* Use this gdb symbol */ |
2460 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2461 | VAR_NAMESPACE, class, | |
6c2e7392 | 2462 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2463 | psymtab_language, objfile); |
2464 | skip: | |
2465 | cur_sdx++; /* Go to next file symbol */ | |
817bc7b8 | 2466 | } |
d4ea2aba | 2467 | |
5f7b2142 ILT |
2468 | /* Now do enter the external symbols. */ |
2469 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; | |
2470 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
2471 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
2472 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
2473 | for (; --cur_sdx >= 0; ext_ptr++) | |
2474 | { | |
5f7b2142 | 2475 | enum address_class class; |
6c2e7392 PS |
2476 | SYMR *psh; |
2477 | char *name; | |
5f7b2142 | 2478 | |
6c2e7392 | 2479 | if (ext_ptr->ifd != f_idx) |
5f7b2142 | 2480 | abort (); |
6c2e7392 | 2481 | psh = &ext_ptr->asym; |
99a15c64 PS |
2482 | |
2483 | /* Do not add undefined symbols to the partial symbol table. */ | |
2484 | if (psh->sc == scUndefined || psh->sc == scNil) | |
2485 | continue; | |
2486 | ||
6c2e7392 | 2487 | switch (psh->st) |
5f7b2142 | 2488 | { |
99a15c64 PS |
2489 | case stNil: |
2490 | /* These are generated for static symbols in .o files, | |
2491 | ignore them. */ | |
2492 | continue; | |
5f7b2142 | 2493 | case stProc: |
85999c05 | 2494 | case stStaticProc: |
5f7b2142 ILT |
2495 | class = LOC_BLOCK; |
2496 | break; | |
2497 | case stLabel: | |
2498 | class = LOC_LABEL; | |
2499 | break; | |
2500 | default: | |
6c2e7392 PS |
2501 | complain (&unknown_ext_complaint, |
2502 | ecoff_data (cur_bfd)->ssext + psh->iss); | |
5f7b2142 ILT |
2503 | /* Fall through, pretend it's global. */ |
2504 | case stGlobal: | |
2505 | class = LOC_STATIC; | |
2506 | break; | |
d4ea2aba | 2507 | } |
6c2e7392 PS |
2508 | name = ecoff_data (cur_bfd)->ssext + psh->iss; |
2509 | ADD_PSYMBOL_ADDR_TO_LIST (name, strlen (name), | |
2510 | VAR_NAMESPACE, class, | |
2511 | objfile->global_psymbols, (CORE_ADDR) psh->value, | |
2512 | psymtab_language, objfile); | |
7e258d18 | 2513 | } |
bd5635a1 RP |
2514 | } |
2515 | ||
cbba020f PS |
2516 | /* Link pst to FDR. end_psymtab returns NULL if the psymtab was |
2517 | empty and put on the free list. */ | |
2518 | fdr_to_pst[f_idx].pst = end_psymtab (save_pst, | |
2519 | psymtab_include_list, includes_used, | |
2520 | -1, save_pst->texthigh, | |
2521 | dependency_list, dependencies_used); | |
5f7b2142 ILT |
2522 | if (objfile->ei.entry_point >= save_pst->textlow && |
2523 | objfile->ei.entry_point < save_pst->texthigh) | |
2524 | { | |
2525 | objfile->ei.entry_file_lowpc = save_pst->textlow; | |
2526 | objfile->ei.entry_file_highpc = save_pst->texthigh; | |
2527 | } | |
817bc7b8 JG |
2528 | } |
2529 | ||
5f7b2142 ILT |
2530 | /* Now scan the FDRs for dependencies */ |
2531 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) | |
2532 | { | |
6c2e7392 | 2533 | fh = f_idx + ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
2534 | pst = fdr_to_pst[f_idx].pst; |
2535 | ||
cbba020f PS |
2536 | if (pst == (struct partial_symtab *)NULL) |
2537 | continue; | |
2538 | ||
5f7b2142 ILT |
2539 | /* This should catch stabs-in-ecoff. */ |
2540 | if (fh->crfd <= 1) | |
2541 | continue; | |
2542 | ||
e7e02420 PS |
2543 | /* Skip the first file indirect entry as it is a self dependency |
2544 | for source files or a reverse .h -> .c dependency for header files. */ | |
cbba020f | 2545 | pst->number_of_dependencies = 0; |
5f7b2142 ILT |
2546 | pst->dependencies = |
2547 | ((struct partial_symtab **) | |
2548 | obstack_alloc (&objfile->psymbol_obstack, | |
e7e02420 | 2549 | ((fh->crfd - 1) |
5f7b2142 | 2550 | * sizeof (struct partial_symtab *)))); |
e7e02420 | 2551 | for (s_idx = 1; s_idx < fh->crfd; s_idx++) |
5f7b2142 | 2552 | { |
6c2e7392 PS |
2553 | RFDT rh; |
2554 | ||
6ac14d25 PS |
2555 | (*swap_rfd_in) (cur_bfd, |
2556 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2557 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
2558 | &rh); | |
6c2e7392 | 2559 | if (rh < 0 || rh >= hdr->ifdMax) |
5f7b2142 | 2560 | { |
cbba020f PS |
2561 | complain (&bad_file_number_complaint, rh); |
2562 | continue; | |
5f7b2142 | 2563 | } |
6c2e7392 | 2564 | |
e7e02420 | 2565 | /* Skip self dependencies of header files. */ |
cbba020f PS |
2566 | if (rh == f_idx) |
2567 | continue; | |
bd5635a1 | 2568 | |
cbba020f PS |
2569 | /* Do not add to dependeny list if psymtab was empty. */ |
2570 | if (fdr_to_pst[rh].pst == (struct partial_symtab *)NULL) | |
2571 | continue; | |
2572 | pst->dependencies[pst->number_of_dependencies++] = fdr_to_pst[rh].pst; | |
2573 | } | |
2574 | } | |
2575 | do_cleanups (old_chain); | |
bd5635a1 | 2576 | } |
5f7b2142 | 2577 | |
bd5635a1 | 2578 | |
5f7b2142 | 2579 | static char * |
c55e6167 | 2580 | mips_next_symbol_text () |
7e258d18 | 2581 | { |
6c2e7392 PS |
2582 | SYMR sh; |
2583 | ||
5f7b2142 | 2584 | cur_sdx++; |
6ac14d25 PS |
2585 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
2586 | (cur_bfd, | |
2587 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2588 | + ((cur_fdr->isymBase + cur_sdx) | |
2589 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
2590 | &sh); | |
6c2e7392 | 2591 | return ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
7e258d18 | 2592 | } |
bd5635a1 RP |
2593 | |
2594 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
2595 | for turning the partial symtab PST into a symtab, recurring | |
3eaebb75 SG |
2596 | first on all dependent psymtabs. The argument FILENAME is |
2597 | only passed so we can see in debug stack traces what file | |
817bc7b8 JG |
2598 | is being read. |
2599 | ||
2600 | This function has a split personality, based on whether the | |
2601 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
2602 | The flow of control and even the memory allocation differs. FIXME. */ | |
bd5635a1 | 2603 | |
e072c738 | 2604 | static void |
5f7b2142 | 2605 | psymtab_to_symtab_1 (pst, filename) |
7e258d18 PB |
2606 | struct partial_symtab *pst; |
2607 | char *filename; | |
bd5635a1 | 2608 | { |
6ac14d25 PS |
2609 | const bfd_size_type external_sym_size |
2610 | = ecoff_backend (cur_bfd)->external_sym_size; | |
2611 | const bfd_size_type external_pdr_size | |
2612 | = ecoff_backend (cur_bfd)->external_pdr_size; | |
2613 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2614 | = ecoff_backend (cur_bfd)->swap_sym_in; | |
6ac14d25 PS |
2615 | void (* const swap_pdr_in) PARAMS ((bfd *, PTR, PDR *)) |
2616 | = ecoff_backend (cur_bfd)->swap_pdr_in; | |
5f7b2142 ILT |
2617 | int i; |
2618 | struct symtab *st; | |
2619 | FDR *fh; | |
2620 | struct linetable *lines; | |
7e258d18 | 2621 | |
5f7b2142 ILT |
2622 | if (pst->readin) |
2623 | return; | |
2624 | pst->readin = 1; | |
7e258d18 | 2625 | |
5f7b2142 ILT |
2626 | /* Read in all partial symbtabs on which this one is dependent. |
2627 | NOTE that we do have circular dependencies, sigh. We solved | |
2628 | that by setting pst->readin before this point. */ | |
817bc7b8 | 2629 | |
5f7b2142 ILT |
2630 | for (i = 0; i < pst->number_of_dependencies; i++) |
2631 | if (!pst->dependencies[i]->readin) | |
2632 | { | |
2633 | /* Inform about additional files to be read in. */ | |
2634 | if (info_verbose) | |
2635 | { | |
2636 | fputs_filtered (" ", stdout); | |
2637 | wrap_here (""); | |
2638 | fputs_filtered ("and ", stdout); | |
2639 | wrap_here (""); | |
2640 | printf_filtered ("%s...", | |
2641 | pst->dependencies[i]->filename); | |
2642 | wrap_here (""); /* Flush output */ | |
2643 | fflush (stdout); | |
2644 | } | |
2645 | /* We only pass the filename for debug purposes */ | |
2646 | psymtab_to_symtab_1 (pst->dependencies[i], | |
2647 | pst->dependencies[i]->filename); | |
2648 | } | |
817bc7b8 | 2649 | |
ac8cf67d PS |
2650 | /* Do nothing if this is a dummy psymtab. */ |
2651 | ||
2652 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
2653 | && pst->textlow == 0 && pst->texthigh == 0) | |
2654 | return; | |
2655 | ||
5f7b2142 | 2656 | /* Now read the symbols for this symtab */ |
817bc7b8 | 2657 | |
ac8cf67d | 2658 | cur_bfd = CUR_BFD (pst); |
5f7b2142 ILT |
2659 | current_objfile = pst->objfile; |
2660 | cur_fd = FDR_IDX (pst); | |
6c2e7392 | 2661 | fh = (cur_fd == -1) ? (FDR *) NULL : ecoff_data (cur_bfd)->fdr + cur_fd; |
5f7b2142 | 2662 | cur_fdr = fh; |
817bc7b8 | 2663 | |
5f7b2142 | 2664 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
6c2e7392 PS |
2665 | processing_gcc_compilation = 0; |
2666 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
5f7b2142 | 2667 | { |
6c2e7392 PS |
2668 | SYMR sh; |
2669 | ||
6ac14d25 PS |
2670 | (*swap_sym_in) (cur_bfd, |
2671 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2672 | + (fh->isymBase + 1) * external_sym_size), | |
2673 | &sh); | |
6c2e7392 PS |
2674 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2675 | stabs_symbol)) | |
2676 | { | |
2677 | /* We indicate that this is a GCC compilation so that certain | |
2678 | features will be enabled in stabsread/dbxread. */ | |
2679 | processing_gcc_compilation = 2; | |
2680 | } | |
2681 | } | |
817bc7b8 | 2682 | |
6c2e7392 PS |
2683 | if (processing_gcc_compilation != 0) |
2684 | { | |
6ac14d25 PS |
2685 | char *pdr_ptr; |
2686 | char *pdr_end; | |
6c2e7392 | 2687 | int first_pdr; |
e7bf1152 | 2688 | unsigned long first_off = 0; |
9adb88b7 | 2689 | |
b5d4d6d7 | 2690 | /* This symbol table contains stabs-in-ecoff entries. */ |
dac4929a | 2691 | |
5f7b2142 | 2692 | /* Parse local symbols first */ |
817bc7b8 | 2693 | |
5f7b2142 ILT |
2694 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */ |
2695 | { | |
2696 | current_objfile = NULL; | |
2697 | return; | |
2698 | } | |
2699 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2700 | { | |
6c2e7392 PS |
2701 | SYMR sh; |
2702 | char *name; | |
2703 | CORE_ADDR valu; | |
2704 | ||
6ac14d25 PS |
2705 | (*swap_sym_in) (cur_bfd, |
2706 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2707 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2708 | &sh); | |
6c2e7392 PS |
2709 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
2710 | valu = sh.value; | |
6ac14d25 | 2711 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 | 2712 | { |
6ac14d25 | 2713 | int type_code = ECOFF_UNMARK_STAB (sh.index); |
5f7b2142 ILT |
2714 | process_one_symbol (type_code, 0, valu, name, |
2715 | pst->section_offsets, pst->objfile); | |
2716 | if (type_code == N_FUN) | |
2717 | { | |
2718 | /* Make up special symbol to contain | |
2719 | procedure specific info */ | |
2720 | struct mips_extra_func_info *e = | |
6c2e7392 PS |
2721 | ((struct mips_extra_func_info *) |
2722 | obstack_alloc (¤t_objfile->symbol_obstack, | |
2723 | sizeof (struct mips_extra_func_info))); | |
5f7b2142 ILT |
2724 | struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME); |
2725 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
2726 | SYMBOL_CLASS (s) = LOC_CONST; | |
2727 | SYMBOL_TYPE (s) = builtin_type_void; | |
85999c05 | 2728 | SYMBOL_VALUE (s) = (long) e; |
5f7b2142 | 2729 | add_symbol_to_list (s, &local_symbols); |
817bc7b8 JG |
2730 | } |
2731 | } | |
6c2e7392 | 2732 | else if (sh.st == stLabel && sh.index != indexNil) |
5f7b2142 ILT |
2733 | { |
2734 | /* Handle encoded stab line number. */ | |
6c2e7392 | 2735 | record_line (current_subfile, sh.index, valu); |
817bc7b8 | 2736 | } |
0b0d6c3f PS |
2737 | else if (sh.st == stProc || sh.st == stStaticProc || sh.st == stEnd) |
2738 | /* These are generated by gcc-2.x, do not complain */ | |
2739 | ; | |
5f7b2142 | 2740 | else |
6c2e7392 | 2741 | complain (&stab_unknown_complaint, name); |
817bc7b8 | 2742 | } |
0b0d6c3f | 2743 | st = end_symtab (pst->texthigh, 0, 0, pst->objfile, SECT_OFF_TEXT); |
5f7b2142 | 2744 | end_stabs (); |
817bc7b8 | 2745 | |
5f7b2142 ILT |
2746 | /* Sort the symbol table now, we are done adding symbols to it. |
2747 | We must do this before parse_procedure calls lookup_symbol. */ | |
2748 | sort_symtab_syms (st); | |
817bc7b8 | 2749 | |
5f7b2142 ILT |
2750 | /* This may not be necessary for stabs symtabs. FIXME. */ |
2751 | sort_blocks (st); | |
817bc7b8 | 2752 | |
6c2e7392 PS |
2753 | /* Fill in procedure info next. */ |
2754 | first_pdr = 1; | |
6ac14d25 PS |
2755 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2756 | + fh->ipdFirst * external_pdr_size); | |
2757 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
2758 | for (; pdr_ptr < pdr_end; pdr_ptr += external_pdr_size) | |
5f7b2142 | 2759 | { |
6c2e7392 PS |
2760 | PDR pr; |
2761 | ||
6ac14d25 | 2762 | (*swap_pdr_in) (cur_bfd, pdr_ptr, &pr); |
6c2e7392 PS |
2763 | if (first_pdr) |
2764 | { | |
2765 | first_off = pr.adr; | |
2766 | first_pdr = 0; | |
2767 | } | |
b5d4d6d7 | 2768 | parse_procedure (&pr, st, first_off); |
817bc7b8 | 2769 | } |
5f7b2142 ILT |
2770 | } |
2771 | else | |
2772 | { | |
6c2e7392 | 2773 | /* This symbol table contains ordinary ecoff entries. */ |
817bc7b8 | 2774 | |
5f7b2142 | 2775 | /* FIXME: doesn't use pst->section_offsets. */ |
dac4929a | 2776 | |
5f7b2142 ILT |
2777 | int f_max; |
2778 | int maxlines; | |
6c2e7392 | 2779 | EXTR *ext_ptr; |
85f0a848 | 2780 | |
5f7b2142 ILT |
2781 | /* How many symbols will we need */ |
2782 | /* FIXME, this does not count enum values. */ | |
2783 | f_max = pst->n_global_syms + pst->n_static_syms; | |
2784 | if (fh == 0) | |
2785 | { | |
2786 | maxlines = 0; | |
2787 | st = new_symtab ("unknown", f_max, 0, pst->objfile); | |
2788 | } | |
2789 | else | |
2790 | { | |
2791 | f_max += fh->csym + fh->cpd; | |
2792 | maxlines = 2 * fh->cline; | |
2793 | st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile); | |
cbba020f PS |
2794 | |
2795 | /* The proper language was already determined when building | |
2796 | the psymtab, use it. */ | |
2797 | st->language = PST_PRIVATE (pst)->pst_language; | |
817bc7b8 JG |
2798 | } |
2799 | ||
018ab14f PS |
2800 | psymtab_language = st->language; |
2801 | ||
5f7b2142 | 2802 | lines = LINETABLE (st); |
817bc7b8 | 2803 | |
5f7b2142 ILT |
2804 | /* Get a new lexical context */ |
2805 | ||
2806 | push_parse_stack (); | |
2807 | top_stack->cur_st = st; | |
2808 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st), | |
2809 | STATIC_BLOCK); | |
2810 | BLOCK_START (top_stack->cur_block) = fh ? fh->adr : 0; | |
2811 | BLOCK_END (top_stack->cur_block) = 0; | |
2812 | top_stack->blocktype = stFile; | |
2813 | top_stack->maxsyms = 2 * f_max; | |
2814 | top_stack->cur_type = 0; | |
2815 | top_stack->procadr = 0; | |
2816 | top_stack->numargs = 0; | |
2817 | ||
2818 | if (fh) | |
2819 | { | |
6ac14d25 PS |
2820 | char *sym_ptr; |
2821 | char *sym_end; | |
5f7b2142 ILT |
2822 | |
2823 | /* Parse local symbols first */ | |
6ac14d25 PS |
2824 | sym_ptr = ((char *) ecoff_data (cur_bfd)->external_sym |
2825 | + fh->isymBase * external_sym_size); | |
2826 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
6c2e7392 | 2827 | while (sym_ptr < sym_end) |
5f7b2142 | 2828 | { |
6c2e7392 PS |
2829 | SYMR sh; |
2830 | int c; | |
2831 | ||
6ac14d25 | 2832 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); |
6c2e7392 PS |
2833 | c = parse_symbol (&sh, |
2834 | (ecoff_data (cur_bfd)->external_aux | |
2835 | + fh->iauxBase), | |
2836 | sym_ptr, fh->fBigendian); | |
6ac14d25 | 2837 | sym_ptr += c * external_sym_size; |
7e258d18 | 2838 | } |
bd5635a1 | 2839 | |
6c2e7392 PS |
2840 | /* Linenumbers. At the end, check if we can save memory. |
2841 | parse_lines has to look ahead an arbitrary number of PDR | |
2842 | structures, so we swap them all first. */ | |
2843 | if (fh->cpd > 0) | |
5f7b2142 | 2844 | { |
6c2e7392 PS |
2845 | PDR *pr_block; |
2846 | struct cleanup *old_chain; | |
6ac14d25 PS |
2847 | char *pdr_ptr; |
2848 | char *pdr_end; | |
6c2e7392 PS |
2849 | PDR *pdr_in; |
2850 | PDR *pdr_in_end; | |
2851 | ||
2852 | pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR)); | |
2853 | ||
2854 | old_chain = make_cleanup (free, pr_block); | |
2855 | ||
6ac14d25 PS |
2856 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2857 | + fh->ipdFirst * external_pdr_size); | |
2858 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
6c2e7392 | 2859 | pdr_in = pr_block; |
6ac14d25 PS |
2860 | for (; |
2861 | pdr_ptr < pdr_end; | |
2862 | pdr_ptr += external_pdr_size, pdr_in++) | |
2863 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
6c2e7392 | 2864 | |
99a15c64 | 2865 | parse_lines (fh, pr_block, lines, maxlines); |
6c2e7392 PS |
2866 | if (lines->nitems < fh->cline) |
2867 | lines = shrink_linetable (lines); | |
2868 | ||
2869 | /* Fill in procedure info next. */ | |
2870 | pdr_in = pr_block; | |
2871 | pdr_in_end = pdr_in + fh->cpd; | |
2872 | for (; pdr_in < pdr_in_end; pdr_in++) | |
2873 | parse_procedure (pdr_in, 0, pr_block->adr); | |
2874 | ||
2875 | do_cleanups (old_chain); | |
817bc7b8 | 2876 | } |
ad142b8e | 2877 | } |
817bc7b8 | 2878 | |
5f7b2142 ILT |
2879 | LINETABLE (st) = lines; |
2880 | ||
2881 | /* .. and our share of externals. | |
2882 | XXX use the global list to speed up things here. how? | |
2883 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
2884 | top_stack->cur_st = st; | |
2885 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
2886 | GLOBAL_BLOCK); | |
2887 | top_stack->blocktype = stFile; | |
6c2e7392 PS |
2888 | top_stack->maxsyms = (ecoff_data (cur_bfd)->symbolic_header.isymMax |
2889 | + ecoff_data (cur_bfd)->symbolic_header.ipdMax | |
2890 | + ecoff_data (cur_bfd)->symbolic_header.iextMax); | |
5f7b2142 ILT |
2891 | |
2892 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
2893 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
6c2e7392 | 2894 | parse_external (ext_ptr, 1, fh->fBigendian); |
5f7b2142 | 2895 | |
99a15c64 PS |
2896 | /* If there are undefined symbols, tell the user. |
2897 | The alpha has an undefined symbol for every symbol that is | |
2898 | from a shared library, so tell the user only if verbose is on. */ | |
2899 | if (info_verbose && n_undef_symbols) | |
5f7b2142 ILT |
2900 | { |
2901 | printf_filtered ("File %s contains %d unresolved references:", | |
2902 | st->filename, n_undef_symbols); | |
2903 | printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n", | |
2904 | n_undef_vars, n_undef_procs, n_undef_labels); | |
2905 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
bd5635a1 | 2906 | |
7e258d18 | 2907 | } |
5f7b2142 | 2908 | pop_parse_stack (); |
817bc7b8 | 2909 | |
5f7b2142 ILT |
2910 | /* Sort the symbol table now, we are done adding symbols to it.*/ |
2911 | sort_symtab_syms (st); | |
817bc7b8 | 2912 | |
5f7b2142 | 2913 | sort_blocks (st); |
7e258d18 | 2914 | } |
7e258d18 | 2915 | |
5f7b2142 ILT |
2916 | /* Now link the psymtab and the symtab. */ |
2917 | pst->symtab = st; | |
021959e2 | 2918 | |
5f7b2142 | 2919 | current_objfile = NULL; |
101f259c | 2920 | } |
bd5635a1 RP |
2921 | \f |
2922 | /* Ancillary parsing procedures. */ | |
2923 | ||
2924 | /* Lookup the type at relative index RN. Return it in TPP | |
2925 | if found and in any event come up with its name PNAME. | |
d747e0af MT |
2926 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). |
2927 | Return value says how many aux symbols we ate. */ | |
bd5635a1 | 2928 | |
d747e0af | 2929 | static int |
85999c05 PS |
2930 | cross_ref (fd, ax, tpp, type_code, pname, bigend, sym_name) |
2931 | int fd; | |
d747e0af | 2932 | union aux_ext *ax; |
7e258d18 | 2933 | struct type **tpp; |
5f7b2142 | 2934 | enum type_code type_code; /* Use to alloc new type if none is found. */ |
7e258d18 | 2935 | char **pname; |
d747e0af | 2936 | int bigend; |
cbba020f | 2937 | char *sym_name; |
bd5635a1 | 2938 | { |
5f7b2142 | 2939 | RNDXR rn[1]; |
6ac14d25 | 2940 | unsigned int rf; |
5f7b2142 | 2941 | int result = 1; |
85999c05 PS |
2942 | FDR *fh; |
2943 | char *esh; | |
2944 | SYMR sh; | |
2945 | int xref_fd; | |
2946 | struct mips_pending *pend; | |
2947 | ||
2948 | *tpp = (struct type *)NULL; | |
bd5635a1 | 2949 | |
6c2e7392 | 2950 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, rn); |
5f7b2142 ILT |
2951 | |
2952 | /* Escape index means 'the next one' */ | |
2953 | if (rn->rfd == 0xfff) | |
2954 | { | |
2955 | result++; | |
2956 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
2957 | } | |
2958 | else | |
2959 | { | |
2960 | rf = rn->rfd; | |
2961 | } | |
2962 | ||
85999c05 PS |
2963 | /* mips cc uses a rf of -1 for opaque struct definitions. |
2964 | Set TYPE_FLAG_STUB for these types so that check_stub_type will | |
2965 | resolve them if the struct gets defined in another compilation unit. */ | |
5f7b2142 ILT |
2966 | if (rf == -1) |
2967 | { | |
5f7b2142 | 2968 | *pname = "<undefined>"; |
85999c05 PS |
2969 | *tpp = init_type (type_code, 0, 0, (char *) NULL, current_objfile); |
2970 | TYPE_FLAGS (*tpp) |= TYPE_FLAG_STUB; | |
2971 | return result; | |
5f7b2142 | 2972 | } |
85999c05 PS |
2973 | |
2974 | /* mips cc uses an escaped rn->index of 0 for struct return types | |
2975 | of procedures that were compiled without -g. These will always remain | |
2976 | undefined. */ | |
2977 | if (rn->rfd == 0xfff && rn->index == 0) | |
5f7b2142 | 2978 | { |
85999c05 PS |
2979 | *pname = "<undefined>"; |
2980 | return result; | |
2981 | } | |
5f7b2142 | 2982 | |
85999c05 PS |
2983 | /* Find the relative file descriptor and the symbol in it. */ |
2984 | fh = get_rfd (fd, rf); | |
2985 | xref_fd = fh - ecoff_data (cur_bfd)->fdr; | |
6ac14d25 | 2986 | |
85999c05 PS |
2987 | if (rn->index >= fh->csym) |
2988 | { | |
2989 | /* File indirect entry is corrupt. */ | |
2990 | *pname = "<illegal>"; | |
2991 | complain (&bad_rfd_entry_complaint, | |
2992 | sym_name, xref_fd, rn->index); | |
2993 | return result; | |
2994 | } | |
2995 | ||
2996 | /* If we have processed this symbol then we left a forwarding | |
2997 | pointer to the type in the pending list. If not, we`ll put | |
2998 | it in a list of pending types, to be processed later when | |
2999 | the file will be. In any event, we collect the name for the | |
3000 | type here. */ | |
3001 | ||
3002 | esh = ((char *) ecoff_data (cur_bfd)->external_sym | |
3003 | + ((fh->isymBase + rn->index) | |
3004 | * ecoff_backend (cur_bfd)->external_sym_size)); | |
3005 | (*ecoff_backend (cur_bfd)->swap_sym_in) (cur_bfd, esh, &sh); | |
3006 | ||
3007 | /* Make sure that this type of cross reference can be handled. */ | |
3008 | if (sh.sc != scInfo | |
3009 | || (sh.st != stBlock && sh.st != stTypedef | |
3010 | && sh.st != stStruct && sh.st != stUnion | |
3011 | && sh.st != stEnum)) | |
3012 | { | |
3013 | /* File indirect entry is corrupt. */ | |
3014 | *pname = "<illegal>"; | |
3015 | complain (&bad_rfd_entry_complaint, | |
3016 | sym_name, xref_fd, rn->index); | |
3017 | return result; | |
3018 | } | |
3019 | ||
3020 | *pname = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; | |
3021 | ||
3022 | pend = is_pending_symbol (fh, esh); | |
3023 | if (pend) | |
3024 | *tpp = pend->t; | |
3025 | else | |
3026 | { | |
3027 | /* We have not yet seen this type. */ | |
3028 | ||
3029 | if (sh.iss == 0 && sh.st == stTypedef) | |
6ac14d25 | 3030 | { |
85999c05 PS |
3031 | TIR tir; |
3032 | ||
3033 | /* alpha cc puts out a stTypedef with a sh.iss of zero for | |
3034 | two cases: | |
3035 | a) forward declarations of structs/unions/enums which are not | |
3036 | defined in this compilation unit. | |
3037 | For these the type will be void. This is a bad design decision | |
3038 | as cross referencing across compilation units is impossible | |
3039 | due to the missing name. | |
3040 | b) forward declarations of structs/unions/enums which are defined | |
3041 | later in this file or in another file in the same compilation | |
3042 | unit. Simply cross reference those again to get the | |
3043 | true type. | |
3044 | The forward references are not entered in the pending list and | |
3045 | in the symbol table. */ | |
3046 | ||
3047 | ecoff_swap_tir_in (bigend, | |
3048 | &(ecoff_data (cur_bfd)->external_aux | |
3049 | + fh->iauxBase + sh.index)->a_ti, | |
3050 | &tir); | |
3051 | if (tir.tq0 != tqNil) | |
3052 | complain (&illegal_forward_tq0_complaint, sym_name); | |
3053 | switch (tir.bt) | |
3054 | { | |
3055 | case btVoid: | |
3056 | *tpp = init_type (type_code, 0, 0, (char *) NULL, | |
3057 | current_objfile); | |
3058 | *pname = "<undefined>"; | |
3059 | break; | |
3060 | ||
3061 | case btStruct: | |
3062 | case btUnion: | |
3063 | case btEnum: | |
3064 | cross_ref (xref_fd, | |
3065 | (ecoff_data (cur_bfd)->external_aux | |
3066 | + fh->iauxBase + sh.index + 1), | |
3067 | tpp, type_code, pname, | |
3068 | fh->fBigendian, sym_name); | |
3069 | break; | |
3070 | ||
3071 | default: | |
3072 | complain (&illegal_forward_bt_complaint, tir.bt, sym_name); | |
3073 | *tpp = init_type (type_code, 0, 0, (char *) NULL, | |
3074 | current_objfile); | |
3075 | break; | |
3076 | } | |
6ac14d25 PS |
3077 | return result; |
3078 | } | |
85999c05 | 3079 | else if (sh.st == stTypedef) |
5f7b2142 | 3080 | { |
85999c05 PS |
3081 | /* Parse the type for a normal typedef. This might recursively call |
3082 | cross_ref till we get a non typedef'ed type. | |
3083 | FIXME: This is not correct behaviour, but gdb currently | |
3084 | cannot handle typedefs without type copying. But type copying is | |
3085 | impossible as we might have mutual forward references between | |
3086 | two files and the copied type would not get filled in when | |
3087 | we later parse its definition. */ | |
3088 | *tpp = parse_type (xref_fd, | |
99a15c64 PS |
3089 | ecoff_data (cur_bfd)->external_aux + fh->iauxBase, |
3090 | sh.index, | |
85999c05 PS |
3091 | (int *)NULL, |
3092 | fh->fBigendian, | |
3093 | (ecoff_data (cur_bfd)->ss | |
3094 | + fh->issBase + sh.iss)); | |
bd5635a1 | 3095 | } |
5f7b2142 ILT |
3096 | else |
3097 | { | |
85999c05 PS |
3098 | /* Cross reference to a struct/union/enum which is defined |
3099 | in another file in the same compilation unit but that file | |
3100 | has not been parsed yet. | |
3101 | Initialize the type only, it will be filled in when | |
3102 | it's definition is parsed. */ | |
3103 | *tpp = init_type (type_code, 0, 0, (char *) NULL, current_objfile); | |
5f7b2142 | 3104 | } |
85999c05 | 3105 | add_pending (fh, esh, *tpp); |
5f7b2142 | 3106 | } |
3eaebb75 | 3107 | |
5f7b2142 ILT |
3108 | /* We used one auxent normally, two if we got a "next one" rf. */ |
3109 | return result; | |
bd5635a1 RP |
3110 | } |
3111 | ||
3112 | ||
3113 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
3114 | keeping the symtab sorted */ | |
3115 | ||
3116 | static struct symbol * | |
3117 | mylookup_symbol (name, block, namespace, class) | |
3118 | char *name; | |
3119 | register struct block *block; | |
3120 | enum namespace namespace; | |
3121 | enum address_class class; | |
3122 | { | |
5f7b2142 ILT |
3123 | register int bot, top, inc; |
3124 | register struct symbol *sym; | |
3125 | ||
3126 | bot = 0; | |
3127 | top = BLOCK_NSYMS (block); | |
3128 | inc = name[0]; | |
3129 | while (bot < top) | |
3130 | { | |
3131 | sym = BLOCK_SYM (block, bot); | |
3132 | if (SYMBOL_NAME (sym)[0] == inc | |
3133 | && SYMBOL_NAMESPACE (sym) == namespace | |
3134 | && SYMBOL_CLASS (sym) == class | |
4fb0ff3b | 3135 | && strcmp (SYMBOL_NAME (sym), name) == 0) |
5f7b2142 ILT |
3136 | return sym; |
3137 | bot++; | |
3138 | } | |
3139 | block = BLOCK_SUPERBLOCK (block); | |
3140 | if (block) | |
3141 | return mylookup_symbol (name, block, namespace, class); | |
3142 | return 0; | |
bd5635a1 RP |
3143 | } |
3144 | ||
3145 | ||
3eaebb75 SG |
3146 | /* Add a new symbol S to a block B. |
3147 | Infrequently, we will need to reallocate the block to make it bigger. | |
3148 | We only detect this case when adding to top_stack->cur_block, since | |
3149 | that's the only time we know how big the block is. FIXME. */ | |
bd5635a1 | 3150 | |
3eaebb75 | 3151 | static void |
5f7b2142 ILT |
3152 | add_symbol (s, b) |
3153 | struct symbol *s; | |
3154 | struct block *b; | |
bd5635a1 | 3155 | { |
5f7b2142 ILT |
3156 | int nsyms = BLOCK_NSYMS (b)++; |
3157 | struct block *origb; | |
3158 | struct parse_stack *stackp; | |
3159 | ||
3160 | if (b == top_stack->cur_block && | |
3161 | nsyms >= top_stack->maxsyms) | |
3162 | { | |
3163 | complain (&block_overflow_complaint, SYMBOL_NAME (s)); | |
3164 | /* In this case shrink_block is actually grow_block, since | |
3eaebb75 | 3165 | BLOCK_NSYMS(b) is larger than its current size. */ |
5f7b2142 ILT |
3166 | origb = b; |
3167 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
3168 | ||
3169 | /* Now run through the stack replacing pointers to the | |
3170 | original block. shrink_block has already done this | |
3171 | for the blockvector and BLOCK_FUNCTION. */ | |
3172 | for (stackp = top_stack; stackp; stackp = stackp->next) | |
3173 | { | |
3174 | if (stackp->cur_block == origb) | |
3175 | { | |
3176 | stackp->cur_block = b; | |
3177 | stackp->maxsyms = BLOCK_NSYMS (b); | |
3178 | } | |
3eaebb75 | 3179 | } |
5f7b2142 ILT |
3180 | } |
3181 | BLOCK_SYM (b, nsyms) = s; | |
bd5635a1 RP |
3182 | } |
3183 | ||
3184 | /* Add a new block B to a symtab S */ | |
3185 | ||
3eaebb75 | 3186 | static void |
5f7b2142 ILT |
3187 | add_block (b, s) |
3188 | struct block *b; | |
3189 | struct symtab *s; | |
bd5635a1 | 3190 | { |
5f7b2142 | 3191 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3192 | |
5f7b2142 | 3193 | bv = (struct blockvector *) xrealloc ((PTR) bv, |
6c2e7392 PS |
3194 | (sizeof (struct blockvector) |
3195 | + BLOCKVECTOR_NBLOCKS (bv) | |
3196 | * sizeof (bv->block))); | |
5f7b2142 ILT |
3197 | if (bv != BLOCKVECTOR (s)) |
3198 | BLOCKVECTOR (s) = bv; | |
bd5635a1 | 3199 | |
5f7b2142 | 3200 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; |
bd5635a1 RP |
3201 | } |
3202 | ||
3203 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
3204 | MIPS' linenumber encoding might need more than one byte | |
e157305c PS |
3205 | to describe it, LAST is used to detect these continuation lines. |
3206 | ||
3207 | Combining lines with the same line number seems like a bad idea. | |
3208 | E.g: There could be a line number entry with the same line number after the | |
3209 | prologue and GDB should not ignore it (this is a better way to find | |
3210 | a prologue than mips_skip_prologue). | |
3211 | But due to the compressed line table format there are line number entries | |
3212 | for the same line which are needed to bridge the gap to the next | |
3213 | line number entry. These entries have a bogus address info with them | |
3214 | and we are unable to tell them from intended duplicate line number | |
3215 | entries. | |
3216 | This is another reason why -ggdb debugging format is preferable. */ | |
bd5635a1 | 3217 | |
3eaebb75 | 3218 | static int |
5f7b2142 ILT |
3219 | add_line (lt, lineno, adr, last) |
3220 | struct linetable *lt; | |
3221 | int lineno; | |
3222 | CORE_ADDR adr; | |
3223 | int last; | |
bd5635a1 | 3224 | { |
5f7b2142 ILT |
3225 | if (last == 0) |
3226 | last = -2; /* make sure we record first line */ | |
bd5635a1 | 3227 | |
5f7b2142 ILT |
3228 | if (last == lineno) /* skip continuation lines */ |
3229 | return lineno; | |
bd5635a1 | 3230 | |
5f7b2142 ILT |
3231 | lt->item[lt->nitems].line = lineno; |
3232 | lt->item[lt->nitems++].pc = adr << 2; | |
3233 | return lineno; | |
bd5635a1 | 3234 | } |
bd5635a1 | 3235 | \f |
84ffdec2 | 3236 | /* Sorting and reordering procedures */ |
bd5635a1 | 3237 | |
bd5635a1 RP |
3238 | /* Blocks with a smaller low bound should come first */ |
3239 | ||
84ffdec2 | 3240 | static int |
5f7b2142 | 3241 | compare_blocks (arg1, arg2) |
99a15c64 PS |
3242 | const PTR arg1; |
3243 | const PTR arg2; | |
bd5635a1 | 3244 | { |
5f7b2142 ILT |
3245 | register int addr_diff; |
3246 | struct block **b1 = (struct block **) arg1; | |
3247 | struct block **b2 = (struct block **) arg2; | |
3248 | ||
3249 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
3250 | if (addr_diff == 0) | |
5f5341a7 | 3251 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); |
5f7b2142 | 3252 | return addr_diff; |
bd5635a1 RP |
3253 | } |
3254 | ||
bd5635a1 RP |
3255 | /* Sort the blocks of a symtab S. |
3256 | Reorder the blocks in the blockvector by code-address, | |
3257 | as required by some MI search routines */ | |
3258 | ||
e072c738 | 3259 | static void |
5f7b2142 ILT |
3260 | sort_blocks (s) |
3261 | struct symtab *s; | |
bd5635a1 | 3262 | { |
5f7b2142 | 3263 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3264 | |
5f7b2142 ILT |
3265 | if (BLOCKVECTOR_NBLOCKS (bv) <= 2) |
3266 | { | |
3267 | /* Cosmetic */ | |
3268 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
3269 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
3270 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
3271 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
3272 | return; | |
3273 | } | |
3274 | /* | |
3275 | * This is very unfortunate: normally all functions are compiled in | |
3276 | * the order they are found, but if the file is compiled -O3 things | |
3277 | * are very different. It would be nice to find a reliable test | |
3278 | * to detect -O3 images in advance. | |
3279 | */ | |
3280 | if (BLOCKVECTOR_NBLOCKS (bv) > 3) | |
3281 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), | |
3282 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
3283 | sizeof (struct block *), | |
3284 | compare_blocks); | |
3285 | ||
3286 | { | |
3287 | register CORE_ADDR high = 0; | |
3288 | register int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
3289 | ||
3290 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
3291 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
3292 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
3293 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
3294 | } | |
3295 | ||
3296 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
3297 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
3298 | ||
3299 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3300 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3301 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3302 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 | 3303 | } |
bd5635a1 | 3304 | \f |
5f7b2142 | 3305 | |
bd5635a1 RP |
3306 | /* Constructor/restructor/destructor procedures */ |
3307 | ||
3308 | /* Allocate a new symtab for NAME. Needs an estimate of how many symbols | |
3309 | MAXSYMS and linenumbers MAXLINES we'll put in it */ | |
3310 | ||
4ad1963e | 3311 | static struct symtab * |
5f7b2142 ILT |
3312 | new_symtab (name, maxsyms, maxlines, objfile) |
3313 | char *name; | |
3314 | int maxsyms; | |
3315 | int maxlines; | |
3316 | struct objfile *objfile; | |
bd5635a1 | 3317 | { |
021959e2 | 3318 | struct symtab *s = allocate_symtab (name, objfile); |
bd5635a1 | 3319 | |
5f7b2142 | 3320 | LINETABLE (s) = new_linetable (maxlines); |
bd5635a1 | 3321 | |
021959e2 | 3322 | /* All symtabs must have at least two blocks */ |
5f7b2142 ILT |
3323 | BLOCKVECTOR (s) = new_bvect (2); |
3324 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms); | |
3325 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms); | |
3326 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) = | |
3327 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
bd5635a1 | 3328 | |
021959e2 | 3329 | s->free_code = free_linetable; |
bd5635a1 | 3330 | |
021959e2 | 3331 | return (s); |
bd5635a1 RP |
3332 | } |
3333 | ||
bd5635a1 RP |
3334 | /* Allocate a new partial_symtab NAME */ |
3335 | ||
3336 | static struct partial_symtab * | |
5f7b2142 ILT |
3337 | new_psymtab (name, objfile) |
3338 | char *name; | |
3339 | struct objfile *objfile; | |
bd5635a1 | 3340 | { |
021959e2 | 3341 | struct partial_symtab *psymtab; |
817bc7b8 | 3342 | |
6c2e7392 | 3343 | psymtab = allocate_psymtab (name, objfile); |
817bc7b8 | 3344 | |
021959e2 | 3345 | /* Keep a backpointer to the file's symbols */ |
bd5635a1 | 3346 | |
5f7b2142 ILT |
3347 | psymtab->read_symtab_private = ((char *) |
3348 | obstack_alloc (&objfile->psymbol_obstack, | |
3349 | sizeof (struct symloc))); | |
6c2e7392 PS |
3350 | memset ((PTR) psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
3351 | CUR_BFD (psymtab) = cur_bfd; | |
817bc7b8 | 3352 | |
021959e2 JG |
3353 | /* The way to turn this into a symtab is to call... */ |
3354 | psymtab->read_symtab = mipscoff_psymtab_to_symtab; | |
3355 | return (psymtab); | |
bd5635a1 RP |
3356 | } |
3357 | ||
3358 | ||
84ffdec2 | 3359 | /* Allocate a linetable array of the given SIZE. Since the struct |
817bc7b8 | 3360 | already includes one item, we subtract one when calculating the |
84ffdec2 | 3361 | proper size to allocate. */ |
bd5635a1 | 3362 | |
7e258d18 | 3363 | static struct linetable * |
5f7b2142 ILT |
3364 | new_linetable (size) |
3365 | int size; | |
bd5635a1 | 3366 | { |
5f7b2142 | 3367 | struct linetable *l; |
bd5635a1 | 3368 | |
5f7b2142 ILT |
3369 | size = (size - 1) * sizeof (l->item) + sizeof (struct linetable); |
3370 | l = (struct linetable *) xmalloc (size); | |
3371 | l->nitems = 0; | |
3372 | return l; | |
bd5635a1 RP |
3373 | } |
3374 | ||
3375 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, | |
84ffdec2 JG |
3376 | I am not so sure about the 3.4 ones. |
3377 | ||
3378 | Since the struct linetable already includes one item, we subtract one when | |
3379 | calculating the proper size to allocate. */ | |
bd5635a1 | 3380 | |
7e258d18 | 3381 | static struct linetable * |
5f7b2142 ILT |
3382 | shrink_linetable (lt) |
3383 | struct linetable *lt; | |
bd5635a1 | 3384 | { |
bd5635a1 | 3385 | |
5f7b2142 | 3386 | return (struct linetable *) xrealloc ((PTR) lt, |
6c2e7392 PS |
3387 | (sizeof (struct linetable) |
3388 | + ((lt->nitems - 1) | |
3389 | * sizeof (lt->item)))); | |
bd5635a1 RP |
3390 | } |
3391 | ||
3392 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ | |
3393 | ||
4ad1963e | 3394 | static struct blockvector * |
5f7b2142 ILT |
3395 | new_bvect (nblocks) |
3396 | int nblocks; | |
bd5635a1 | 3397 | { |
5f7b2142 ILT |
3398 | struct blockvector *bv; |
3399 | int size; | |
bd5635a1 | 3400 | |
5f7b2142 ILT |
3401 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); |
3402 | bv = (struct blockvector *) xzalloc (size); | |
bd5635a1 | 3403 | |
5f7b2142 | 3404 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; |
bd5635a1 | 3405 | |
5f7b2142 | 3406 | return bv; |
bd5635a1 RP |
3407 | } |
3408 | ||
3409 | /* Allocate and zero a new block of MAXSYMS symbols */ | |
3410 | ||
4ad1963e | 3411 | static struct block * |
5f7b2142 ILT |
3412 | new_block (maxsyms) |
3413 | int maxsyms; | |
bd5635a1 | 3414 | { |
5f7b2142 | 3415 | int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *); |
bd5635a1 | 3416 | |
5f7b2142 | 3417 | return (struct block *) xzalloc (size); |
bd5635a1 RP |
3418 | } |
3419 | ||
3eaebb75 SG |
3420 | /* Ooops, too big. Shrink block B in symtab S to its minimal size. |
3421 | Shrink_block can also be used by add_symbol to grow a block. */ | |
bd5635a1 RP |
3422 | |
3423 | static struct block * | |
5f7b2142 ILT |
3424 | shrink_block (b, s) |
3425 | struct block *b; | |
3426 | struct symtab *s; | |
bd5635a1 | 3427 | { |
5f7b2142 ILT |
3428 | struct block *new; |
3429 | struct blockvector *bv = BLOCKVECTOR (s); | |
3430 | int i; | |
bd5635a1 | 3431 | |
5f7b2142 | 3432 | /* Just reallocate it and fix references to the old one */ |
bd5635a1 | 3433 | |
6c2e7392 PS |
3434 | new = (struct block *) xrealloc ((PTR) b, |
3435 | (sizeof (struct block) | |
3436 | + ((BLOCK_NSYMS (b) - 1) | |
3437 | * sizeof (struct symbol *)))); | |
bd5635a1 | 3438 | |
5f7b2142 | 3439 | /* Should chase pointers to old one. Fortunately, that`s just |
bd5635a1 | 3440 | the block`s function and inferior blocks */ |
5f7b2142 ILT |
3441 | if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b) |
3442 | SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new; | |
3443 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
3444 | if (BLOCKVECTOR_BLOCK (bv, i) == b) | |
3445 | BLOCKVECTOR_BLOCK (bv, i) = new; | |
3446 | else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b) | |
3447 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new; | |
3448 | return new; | |
bd5635a1 RP |
3449 | } |
3450 | ||
3451 | /* Create a new symbol with printname NAME */ | |
3452 | ||
4ad1963e | 3453 | static struct symbol * |
5f7b2142 ILT |
3454 | new_symbol (name) |
3455 | char *name; | |
bd5635a1 | 3456 | { |
6c2e7392 PS |
3457 | struct symbol *s = ((struct symbol *) |
3458 | obstack_alloc (¤t_objfile->symbol_obstack, | |
3459 | sizeof (struct symbol))); | |
bd5635a1 | 3460 | |
5f7b2142 ILT |
3461 | memset ((PTR) s, 0, sizeof (*s)); |
3462 | SYMBOL_NAME (s) = name; | |
018ab14f PS |
3463 | SYMBOL_LANGUAGE (s) = psymtab_language; |
3464 | SYMBOL_INIT_DEMANGLED_NAME (s, ¤t_objfile->symbol_obstack); | |
5f7b2142 | 3465 | return s; |
bd5635a1 RP |
3466 | } |
3467 | ||
3468 | /* Create a new type with printname NAME */ | |
3469 | ||
4ad1963e | 3470 | static struct type * |
5f7b2142 ILT |
3471 | new_type (name) |
3472 | char *name; | |
bd5635a1 | 3473 | { |
5f7b2142 | 3474 | struct type *t; |
bd5635a1 | 3475 | |
5f7b2142 ILT |
3476 | t = alloc_type (current_objfile); |
3477 | TYPE_NAME (t) = name; | |
6c2e7392 | 3478 | TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default; |
5f7b2142 | 3479 | return t; |
bd5635a1 | 3480 | } |
bd5635a1 | 3481 | \f |
5f7b2142 | 3482 | |
bd5635a1 RP |
3483 | /* Things used for calling functions in the inferior. |
3484 | These functions are exported to our companion | |
7e258d18 | 3485 | mips-tdep.c file and are here because they play |
bd5635a1 RP |
3486 | with the symbol-table explicitly. */ |
3487 | ||
bd5635a1 RP |
3488 | /* Sigtramp: make sure we have all the necessary information |
3489 | about the signal trampoline code. Since the official code | |
3490 | from MIPS does not do so, we make up that information ourselves. | |
3491 | If they fix the library (unlikely) this code will neutralize itself. */ | |
3492 | ||
d747e0af | 3493 | static void |
5f7b2142 | 3494 | fixup_sigtramp () |
bd5635a1 | 3495 | { |
5f7b2142 ILT |
3496 | struct symbol *s; |
3497 | struct symtab *st; | |
e7bf1152 | 3498 | struct block *b, *b0 = NULL; |
bd5635a1 | 3499 | |
5f7b2142 | 3500 | sigtramp_address = -1; |
bd5635a1 | 3501 | |
7cf92dd2 PS |
3502 | /* We have to handle the following cases here: |
3503 | a) The Mips library has a sigtramp label within sigvec. | |
3504 | b) Irix has a _sigtramp which we want to use, but it also has sigvec. */ | |
5f7b2142 | 3505 | s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL); |
7cf92dd2 | 3506 | if (s != 0) |
5f7b2142 ILT |
3507 | { |
3508 | b0 = SYMBOL_BLOCK_VALUE (s); | |
5f7b2142 ILT |
3509 | s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL); |
3510 | } | |
7cf92dd2 PS |
3511 | if (s == 0) |
3512 | { | |
3513 | /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */ | |
3514 | s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL); | |
3515 | } | |
4ad1963e | 3516 | |
5f7b2142 ILT |
3517 | /* But maybe this program uses its own version of sigvec */ |
3518 | if (s == 0) | |
3519 | return; | |
bd5635a1 | 3520 | |
5f7b2142 ILT |
3521 | /* Did we or MIPSco fix the library ? */ |
3522 | if (SYMBOL_CLASS (s) == LOC_BLOCK) | |
3523 | { | |
3524 | sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s)); | |
3525 | sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s)); | |
3526 | return; | |
3527 | } | |
bd5635a1 | 3528 | |
5f7b2142 ILT |
3529 | sigtramp_address = SYMBOL_VALUE (s); |
3530 | sigtramp_end = sigtramp_address + 0x88; /* black magic */ | |
3531 | ||
3532 | /* But what symtab does it live in ? */ | |
3533 | st = find_pc_symtab (SYMBOL_VALUE (s)); | |
3534 | ||
3535 | /* | |
3536 | * Ok, there goes the fix: turn it into a procedure, with all the | |
3537 | * needed info. Note we make it a nested procedure of sigvec, | |
3538 | * which is the way the (assembly) code is actually written. | |
3539 | */ | |
3540 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
3541 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
3542 | SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL, | |
85999c05 | 3543 | st->objfile); |
5f7b2142 ILT |
3544 | TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = builtin_type_void; |
3545 | ||
3546 | /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */ | |
3547 | b = new_block (1); | |
3548 | SYMBOL_BLOCK_VALUE (s) = b; | |
3549 | BLOCK_START (b) = sigtramp_address; | |
3550 | BLOCK_END (b) = sigtramp_end; | |
3551 | BLOCK_FUNCTION (b) = s; | |
3552 | BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0); | |
3553 | add_block (b, st); | |
3554 | sort_blocks (st); | |
3555 | ||
3556 | /* Make a MIPS_EFI_SYMBOL_NAME entry for it */ | |
3557 | { | |
3558 | struct mips_extra_func_info *e = | |
3559 | ((struct mips_extra_func_info *) | |
3560 | xzalloc (sizeof (struct mips_extra_func_info))); | |
3561 | ||
3562 | e->numargs = 0; /* the kernel thinks otherwise */ | |
3563 | /* align_longword(sigcontext + SIGFRAME) */ | |
3564 | e->pdr.frameoffset = 0x150; | |
3565 | e->pdr.framereg = SP_REGNUM; | |
e157305c PS |
3566 | /* read_next_frame_reg provides the true pc at the time of signal */ |
3567 | e->pdr.pcreg = PC_REGNUM; | |
5f7b2142 ILT |
3568 | e->pdr.regmask = -2; |
3569 | e->pdr.regoffset = -(41 * sizeof (int)); | |
3570 | e->pdr.fregmask = -1; | |
e157305c | 3571 | e->pdr.fregoffset = -(7 * sizeof (int)); |
5f7b2142 | 3572 | e->pdr.isym = (long) s; |
579f0258 | 3573 | e->pdr.adr = sigtramp_address; |
5f7b2142 ILT |
3574 | |
3575 | current_objfile = st->objfile; /* Keep new_symbol happy */ | |
3576 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
85999c05 | 3577 | SYMBOL_VALUE (s) = (long) e; |
5f7b2142 ILT |
3578 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; |
3579 | SYMBOL_CLASS (s) = LOC_CONST; | |
3580 | SYMBOL_TYPE (s) = builtin_type_void; | |
3581 | current_objfile = NULL; | |
3582 | } | |
bd5635a1 | 3583 | |
5f7b2142 | 3584 | BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s; |
bd5635a1 | 3585 | } |
dac4929a SG |
3586 | |
3587 | ||
3588 | /* Fake up identical offsets for all sections. */ | |
3589 | ||
3590 | struct section_offsets * | |
3591 | mipscoff_symfile_offsets (objfile, addr) | |
3592 | struct objfile *objfile; | |
3593 | CORE_ADDR addr; | |
3594 | { | |
3595 | struct section_offsets *section_offsets; | |
3596 | int i; | |
3597 | ||
5f7b2142 ILT |
3598 | section_offsets = ((struct section_offsets *) |
3599 | obstack_alloc (&objfile->psymbol_obstack, | |
3600 | (sizeof (struct section_offsets) | |
3601 | + (sizeof (section_offsets->offsets) | |
3602 | * (SECT_OFF_MAX - 1))))); | |
dac4929a SG |
3603 | |
3604 | for (i = 0; i < SECT_OFF_MAX; i++) | |
3605 | ANOFFSET (section_offsets, i) = addr; | |
3606 | ||
3607 | return section_offsets; | |
3608 | } | |
bd5635a1 RP |
3609 | \f |
3610 | /* Initialization */ | |
3611 | ||
80d68b1d FF |
3612 | static struct sym_fns ecoff_sym_fns = |
3613 | { | |
5f7b2142 ILT |
3614 | "ecoff", /* sym_name: name or name prefix of BFD target type */ |
3615 | 5, /* sym_namelen: number of significant sym_name chars */ | |
3616 | mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */ | |
3617 | mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */ | |
3618 | mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */ | |
3619 | mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */ | |
3620 | mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */ | |
3621 | NULL /* next: pointer to next struct sym_fns */ | |
80d68b1d FF |
3622 | }; |
3623 | ||
bd5635a1 | 3624 | |
4ad1963e | 3625 | void |
bd5635a1 RP |
3626 | _initialize_mipsread () |
3627 | { | |
5f7b2142 ILT |
3628 | add_symtab_fns (&ecoff_sym_fns); |
3629 | ||
3630 | /* Missing basic types */ | |
3631 | ||
3632 | builtin_type_string = | |
3633 | init_type (TYPE_CODE_STRING, | |
3634 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3635 | 0, "string", | |
3636 | (struct objfile *) NULL); | |
3637 | builtin_type_complex = | |
3638 | init_type (TYPE_CODE_FLT, | |
3639 | TARGET_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3640 | 0, "complex", | |
3641 | (struct objfile *) NULL); | |
3642 | builtin_type_double_complex = | |
3643 | init_type (TYPE_CODE_FLT, | |
3644 | TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3645 | 0, "double complex", | |
3646 | (struct objfile *) NULL); | |
3647 | builtin_type_fixed_dec = | |
3648 | init_type (TYPE_CODE_INT, | |
3649 | TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3650 | 0, "fixed decimal", | |
3651 | (struct objfile *) NULL); | |
3652 | builtin_type_float_dec = | |
3653 | init_type (TYPE_CODE_FLT, | |
3654 | TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3655 | 0, "floating decimal", | |
3656 | (struct objfile *) NULL); | |
bd5635a1 | 3657 | } |