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252b5132 | 1 | /* Generic ECOFF (Extended-COFF) routines. |
5f771d47 | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | Original version by Per Bothner. | |
5 | Full support added by Ian Lance Taylor, ian@cygnus.com. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
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 | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libbfd.h" | |
27 | #include "aout/ar.h" | |
28 | #include "aout/ranlib.h" | |
29 | #include "aout/stab_gnu.h" | |
30 | ||
31 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines | |
32 | some other stuff which we don't want and which conflicts with stuff | |
33 | we do want. */ | |
34 | #include "libaout.h" | |
35 | #include "aout/aout64.h" | |
36 | #undef N_ABS | |
37 | #undef exec_hdr | |
38 | #undef obj_sym_filepos | |
39 | ||
40 | #include "coff/internal.h" | |
41 | #include "coff/sym.h" | |
42 | #include "coff/symconst.h" | |
43 | #include "coff/ecoff.h" | |
44 | #include "libcoff.h" | |
45 | #include "libecoff.h" | |
46 | \f | |
47 | /* Prototypes for static functions. */ | |
48 | ||
49 | static int ecoff_get_magic PARAMS ((bfd *abfd)); | |
50 | static long ecoff_sec_to_styp_flags PARAMS ((const char *name, | |
51 | flagword flags)); | |
52 | static boolean ecoff_slurp_symbolic_header PARAMS ((bfd *abfd)); | |
53 | static boolean ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, | |
54 | asymbol *asym, int ext, int weak)); | |
55 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, FDR *fdr, | |
56 | char *string, | |
57 | RNDXR *rndx, long isym, | |
58 | const char *which)); | |
59 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, FDR *fdr, | |
60 | unsigned int indx)); | |
61 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, | |
62 | asymbol **symbols)); | |
63 | static int ecoff_sort_hdrs PARAMS ((const PTR, const PTR)); | |
64 | static boolean ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); | |
65 | static bfd_size_type ecoff_compute_reloc_file_positions PARAMS ((bfd *abfd)); | |
66 | static boolean ecoff_get_extr PARAMS ((asymbol *, EXTR *)); | |
67 | static void ecoff_set_index PARAMS ((asymbol *, bfd_size_type)); | |
68 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, | |
69 | unsigned int *rehash, | |
70 | unsigned int size, | |
71 | unsigned int hlog)); | |
72 | \f | |
73 | /* This stuff is somewhat copied from coffcode.h. */ | |
74 | ||
5f771d47 ILT |
75 | static asection bfd_debug_section = |
76 | { | |
77 | "*DEBUG*", 0, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, 0, NULL, NULL, | |
78 | 0, 0, 0, 0, NULL, NULL, NULL, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, | |
79 | NULL, NULL | |
80 | }; | |
252b5132 RH |
81 | |
82 | /* Create an ECOFF object. */ | |
83 | ||
84 | boolean | |
85 | _bfd_ecoff_mkobject (abfd) | |
86 | bfd *abfd; | |
87 | { | |
88 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
89 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
90 | if (abfd->tdata.ecoff_obj_data == NULL) | |
91 | return false; | |
92 | ||
93 | return true; | |
94 | } | |
95 | ||
96 | /* This is a hook called by coff_real_object_p to create any backend | |
97 | specific information. */ | |
98 | ||
99 | PTR | |
100 | _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
101 | bfd *abfd; | |
102 | PTR filehdr; | |
103 | PTR aouthdr; | |
104 | { | |
105 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
106 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
107 | ecoff_data_type *ecoff; | |
108 | ||
109 | if (_bfd_ecoff_mkobject (abfd) == false) | |
110 | return NULL; | |
111 | ||
112 | ecoff = ecoff_data (abfd); | |
113 | ecoff->gp_size = 8; | |
114 | ecoff->sym_filepos = internal_f->f_symptr; | |
115 | ||
116 | if (internal_a != (struct internal_aouthdr *) NULL) | |
117 | { | |
118 | int i; | |
119 | ||
120 | ecoff->text_start = internal_a->text_start; | |
121 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
122 | ecoff->gp = internal_a->gp_value; | |
123 | ecoff->gprmask = internal_a->gprmask; | |
124 | for (i = 0; i < 4; i++) | |
125 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
126 | ecoff->fprmask = internal_a->fprmask; | |
127 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
128 | abfd->flags |= D_PAGED; | |
129 | else | |
130 | abfd->flags &=~ D_PAGED; | |
131 | } | |
132 | ||
133 | /* It turns out that no special action is required by the MIPS or | |
134 | Alpha ECOFF backends. They have different information in the | |
135 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
136 | fprmask) and let the swapping routines ensure that only relevant | |
137 | information is written out. */ | |
138 | ||
139 | return (PTR) ecoff; | |
140 | } | |
141 | ||
142 | /* Initialize a new section. */ | |
143 | ||
144 | boolean | |
145 | _bfd_ecoff_new_section_hook (abfd, section) | |
5f771d47 | 146 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
147 | asection *section; |
148 | { | |
149 | section->alignment_power = 4; | |
150 | ||
151 | if (strcmp (section->name, _TEXT) == 0 | |
152 | || strcmp (section->name, _INIT) == 0 | |
153 | || strcmp (section->name, _FINI) == 0) | |
154 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
155 | else if (strcmp (section->name, _DATA) == 0 | |
156 | || strcmp (section->name, _SDATA) == 0) | |
157 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
158 | else if (strcmp (section->name, _RDATA) == 0 | |
159 | || strcmp (section->name, _LIT8) == 0 | |
160 | || strcmp (section->name, _LIT4) == 0 | |
161 | || strcmp (section->name, _RCONST) == 0 | |
162 | || strcmp (section->name, _PDATA) == 0) | |
163 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
164 | else if (strcmp (section->name, _BSS) == 0 | |
165 | || strcmp (section->name, _SBSS) == 0) | |
166 | section->flags |= SEC_ALLOC; | |
167 | else if (strcmp (section->name, _LIB) == 0) | |
168 | { | |
169 | /* An Irix 4 shared libary. */ | |
170 | section->flags |= SEC_COFF_SHARED_LIBRARY; | |
171 | } | |
172 | ||
173 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
174 | uncertain about .init on some systems and I don't know how shared | |
175 | libraries work. */ | |
176 | ||
177 | return true; | |
178 | } | |
179 | ||
180 | /* Determine the machine architecture and type. This is called from | |
181 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
182 | below. This could be an ECOFF backend routine, with one version | |
183 | for each target, but there aren't all that many ECOFF targets. */ | |
184 | ||
185 | boolean | |
186 | _bfd_ecoff_set_arch_mach_hook (abfd, filehdr) | |
187 | bfd *abfd; | |
188 | PTR filehdr; | |
189 | { | |
190 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
191 | enum bfd_architecture arch; | |
192 | unsigned long mach; | |
193 | ||
194 | switch (internal_f->f_magic) | |
195 | { | |
196 | case MIPS_MAGIC_1: | |
197 | case MIPS_MAGIC_LITTLE: | |
198 | case MIPS_MAGIC_BIG: | |
199 | arch = bfd_arch_mips; | |
200 | mach = 3000; | |
201 | break; | |
202 | ||
203 | case MIPS_MAGIC_LITTLE2: | |
204 | case MIPS_MAGIC_BIG2: | |
205 | /* MIPS ISA level 2: the r6000 */ | |
206 | arch = bfd_arch_mips; | |
207 | mach = 6000; | |
208 | break; | |
209 | ||
210 | case MIPS_MAGIC_LITTLE3: | |
211 | case MIPS_MAGIC_BIG3: | |
212 | /* MIPS ISA level 3: the r4000 */ | |
213 | arch = bfd_arch_mips; | |
214 | mach = 4000; | |
215 | break; | |
216 | ||
217 | case ALPHA_MAGIC: | |
218 | arch = bfd_arch_alpha; | |
219 | mach = 0; | |
220 | break; | |
221 | ||
222 | default: | |
223 | arch = bfd_arch_obscure; | |
224 | mach = 0; | |
225 | break; | |
226 | } | |
227 | ||
228 | return bfd_default_set_arch_mach (abfd, arch, mach); | |
229 | } | |
230 | ||
231 | /* Get the magic number to use based on the architecture and machine. | |
232 | This is the inverse of _bfd_ecoff_set_arch_mach_hook, above. */ | |
233 | ||
234 | static int | |
235 | ecoff_get_magic (abfd) | |
236 | bfd *abfd; | |
237 | { | |
238 | int big, little; | |
239 | ||
240 | switch (bfd_get_arch (abfd)) | |
241 | { | |
242 | case bfd_arch_mips: | |
243 | switch (bfd_get_mach (abfd)) | |
244 | { | |
245 | default: | |
246 | case 0: | |
247 | case 3000: | |
248 | big = MIPS_MAGIC_BIG; | |
249 | little = MIPS_MAGIC_LITTLE; | |
250 | break; | |
251 | ||
252 | case 6000: | |
253 | big = MIPS_MAGIC_BIG2; | |
254 | little = MIPS_MAGIC_LITTLE2; | |
255 | break; | |
256 | ||
257 | case 4000: | |
258 | big = MIPS_MAGIC_BIG3; | |
259 | little = MIPS_MAGIC_LITTLE3; | |
260 | break; | |
261 | } | |
262 | ||
263 | return bfd_big_endian (abfd) ? big : little; | |
264 | ||
265 | case bfd_arch_alpha: | |
266 | return ALPHA_MAGIC; | |
267 | ||
268 | default: | |
269 | abort (); | |
270 | return 0; | |
271 | } | |
272 | } | |
273 | ||
274 | /* Get the section s_flags to use for a section. */ | |
275 | ||
276 | static long | |
277 | ecoff_sec_to_styp_flags (name, flags) | |
278 | const char *name; | |
279 | flagword flags; | |
280 | { | |
281 | long styp; | |
282 | ||
283 | styp = 0; | |
284 | ||
285 | if (strcmp (name, _TEXT) == 0) | |
286 | styp = STYP_TEXT; | |
287 | else if (strcmp (name, _DATA) == 0) | |
288 | styp = STYP_DATA; | |
289 | else if (strcmp (name, _SDATA) == 0) | |
290 | styp = STYP_SDATA; | |
291 | else if (strcmp (name, _RDATA) == 0) | |
292 | styp = STYP_RDATA; | |
293 | else if (strcmp (name, _LITA) == 0) | |
294 | styp = STYP_LITA; | |
295 | else if (strcmp (name, _LIT8) == 0) | |
296 | styp = STYP_LIT8; | |
297 | else if (strcmp (name, _LIT4) == 0) | |
298 | styp = STYP_LIT4; | |
299 | else if (strcmp (name, _BSS) == 0) | |
300 | styp = STYP_BSS; | |
301 | else if (strcmp (name, _SBSS) == 0) | |
302 | styp = STYP_SBSS; | |
303 | else if (strcmp (name, _INIT) == 0) | |
304 | styp = STYP_ECOFF_INIT; | |
305 | else if (strcmp (name, _FINI) == 0) | |
306 | styp = STYP_ECOFF_FINI; | |
307 | else if (strcmp (name, _PDATA) == 0) | |
308 | styp = STYP_PDATA; | |
309 | else if (strcmp (name, _XDATA) == 0) | |
310 | styp = STYP_XDATA; | |
311 | else if (strcmp (name, _LIB) == 0) | |
312 | styp = STYP_ECOFF_LIB; | |
313 | else if (strcmp (name, _GOT) == 0) | |
314 | styp = STYP_GOT; | |
315 | else if (strcmp (name, _HASH) == 0) | |
316 | styp = STYP_HASH; | |
317 | else if (strcmp (name, _DYNAMIC) == 0) | |
318 | styp = STYP_DYNAMIC; | |
319 | else if (strcmp (name, _LIBLIST) == 0) | |
320 | styp = STYP_LIBLIST; | |
321 | else if (strcmp (name, _RELDYN) == 0) | |
322 | styp = STYP_RELDYN; | |
323 | else if (strcmp (name, _CONFLIC) == 0) | |
324 | styp = STYP_CONFLIC; | |
325 | else if (strcmp (name, _DYNSTR) == 0) | |
326 | styp = STYP_DYNSTR; | |
327 | else if (strcmp (name, _DYNSYM) == 0) | |
328 | styp = STYP_DYNSYM; | |
329 | else if (strcmp (name, _COMMENT) == 0) | |
330 | { | |
331 | styp = STYP_COMMENT; | |
332 | flags &=~ SEC_NEVER_LOAD; | |
333 | } | |
334 | else if (strcmp (name, _RCONST) == 0) | |
335 | styp = STYP_RCONST; | |
336 | else if (flags & SEC_CODE) | |
337 | styp = STYP_TEXT; | |
338 | else if (flags & SEC_DATA) | |
339 | styp = STYP_DATA; | |
340 | else if (flags & SEC_READONLY) | |
341 | styp = STYP_RDATA; | |
342 | else if (flags & SEC_LOAD) | |
343 | styp = STYP_REG; | |
344 | else | |
345 | styp = STYP_BSS; | |
346 | ||
347 | if (flags & SEC_NEVER_LOAD) | |
348 | styp |= STYP_NOLOAD; | |
349 | ||
350 | return styp; | |
351 | } | |
352 | ||
353 | /* Get the BFD flags to use for a section. */ | |
354 | ||
355 | /*ARGSUSED*/ | |
356 | flagword | |
357 | _bfd_ecoff_styp_to_sec_flags (abfd, hdr, name) | |
5f771d47 | 358 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 359 | PTR hdr; |
5f771d47 | 360 | const char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
361 | { |
362 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
363 | long styp_flags = internal_s->s_flags; | |
364 | flagword sec_flags=0; | |
365 | ||
366 | if (styp_flags & STYP_NOLOAD) | |
367 | sec_flags |= SEC_NEVER_LOAD; | |
368 | ||
369 | /* For 386 COFF, at least, an unloadable text or data section is | |
370 | actually a shared library section. */ | |
371 | if ((styp_flags & STYP_TEXT) | |
372 | || (styp_flags & STYP_ECOFF_INIT) | |
373 | || (styp_flags & STYP_ECOFF_FINI) | |
374 | || (styp_flags & STYP_DYNAMIC) | |
375 | || (styp_flags & STYP_LIBLIST) | |
376 | || (styp_flags & STYP_RELDYN) | |
377 | || styp_flags == STYP_CONFLIC | |
378 | || (styp_flags & STYP_DYNSTR) | |
379 | || (styp_flags & STYP_DYNSYM) | |
380 | || (styp_flags & STYP_HASH)) | |
381 | { | |
382 | if (sec_flags & SEC_NEVER_LOAD) | |
383 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
384 | else | |
385 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
386 | } | |
387 | else if ((styp_flags & STYP_DATA) | |
388 | || (styp_flags & STYP_RDATA) | |
389 | || (styp_flags & STYP_SDATA) | |
390 | || styp_flags == STYP_PDATA | |
391 | || styp_flags == STYP_XDATA | |
392 | || (styp_flags & STYP_GOT) | |
393 | || styp_flags == STYP_RCONST) | |
394 | { | |
395 | if (sec_flags & SEC_NEVER_LOAD) | |
396 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
397 | else | |
398 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
399 | if ((styp_flags & STYP_RDATA) | |
400 | || styp_flags == STYP_PDATA | |
401 | || styp_flags == STYP_RCONST) | |
402 | sec_flags |= SEC_READONLY; | |
403 | } | |
404 | else if ((styp_flags & STYP_BSS) | |
405 | || (styp_flags & STYP_SBSS)) | |
406 | { | |
407 | sec_flags |= SEC_ALLOC; | |
408 | } | |
409 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) | |
410 | { | |
411 | sec_flags |= SEC_NEVER_LOAD; | |
412 | } | |
413 | else if ((styp_flags & STYP_LITA) | |
414 | || (styp_flags & STYP_LIT8) | |
415 | || (styp_flags & STYP_LIT4)) | |
416 | { | |
417 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
418 | } | |
419 | else if (styp_flags & STYP_ECOFF_LIB) | |
420 | { | |
421 | sec_flags |= SEC_COFF_SHARED_LIBRARY; | |
422 | } | |
423 | else | |
424 | { | |
425 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
426 | } | |
427 | ||
428 | return sec_flags; | |
429 | } | |
430 | \f | |
431 | /* Read in the symbolic header for an ECOFF object file. */ | |
432 | ||
433 | static boolean | |
434 | ecoff_slurp_symbolic_header (abfd) | |
435 | bfd *abfd; | |
436 | { | |
437 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
438 | bfd_size_type external_hdr_size; | |
439 | PTR raw = NULL; | |
440 | HDRR *internal_symhdr; | |
441 | ||
442 | /* See if we've already read it in. */ | |
443 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == | |
444 | backend->debug_swap.sym_magic) | |
445 | return true; | |
446 | ||
447 | /* See whether there is a symbolic header. */ | |
448 | if (ecoff_data (abfd)->sym_filepos == 0) | |
449 | { | |
450 | bfd_get_symcount (abfd) = 0; | |
451 | return true; | |
452 | } | |
453 | ||
454 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
455 | as read from the file header, but on ECOFF this is always the | |
456 | size of the symbolic information header. It would be cleaner to | |
457 | handle this when we first read the file in coffgen.c. */ | |
458 | external_hdr_size = backend->debug_swap.external_hdr_size; | |
459 | if (bfd_get_symcount (abfd) != external_hdr_size) | |
460 | { | |
461 | bfd_set_error (bfd_error_bad_value); | |
462 | return false; | |
463 | } | |
464 | ||
465 | /* Read the symbolic information header. */ | |
466 | raw = (PTR) bfd_malloc ((size_t) external_hdr_size); | |
467 | if (raw == NULL) | |
468 | goto error_return; | |
469 | ||
470 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
471 | || (bfd_read (raw, external_hdr_size, 1, abfd) | |
472 | != external_hdr_size)) | |
473 | goto error_return; | |
474 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
475 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); | |
476 | ||
477 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) | |
478 | { | |
479 | bfd_set_error (bfd_error_bad_value); | |
480 | goto error_return; | |
481 | } | |
482 | ||
483 | /* Now we can get the correct number of symbols. */ | |
484 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
485 | + internal_symhdr->iextMax); | |
486 | ||
487 | if (raw != NULL) | |
488 | free (raw); | |
489 | return true; | |
490 | error_return: | |
491 | if (raw != NULL) | |
492 | free (raw); | |
493 | return false; | |
494 | } | |
495 | ||
496 | /* Read in and swap the important symbolic information for an ECOFF | |
497 | object file. This is called by gdb via the read_debug_info entry | |
498 | point in the backend structure. */ | |
499 | ||
500 | /*ARGSUSED*/ | |
501 | boolean | |
502 | _bfd_ecoff_slurp_symbolic_info (abfd, ignore, debug) | |
503 | bfd *abfd; | |
5f771d47 | 504 | asection *ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
505 | struct ecoff_debug_info *debug; |
506 | { | |
507 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
508 | HDRR *internal_symhdr; | |
509 | bfd_size_type raw_base; | |
510 | bfd_size_type raw_size; | |
511 | PTR raw; | |
512 | bfd_size_type external_fdr_size; | |
513 | char *fraw_src; | |
514 | char *fraw_end; | |
515 | struct fdr *fdr_ptr; | |
516 | bfd_size_type raw_end; | |
517 | bfd_size_type cb_end; | |
518 | ||
519 | BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info); | |
520 | ||
521 | /* Check whether we've already gotten it, and whether there's any to | |
522 | get. */ | |
523 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
524 | return true; | |
525 | if (ecoff_data (abfd)->sym_filepos == 0) | |
526 | { | |
527 | bfd_get_symcount (abfd) = 0; | |
528 | return true; | |
529 | } | |
530 | ||
531 | if (! ecoff_slurp_symbolic_header (abfd)) | |
532 | return false; | |
533 | ||
534 | internal_symhdr = &debug->symbolic_header; | |
535 | ||
536 | /* Read all the symbolic information at once. */ | |
537 | raw_base = (ecoff_data (abfd)->sym_filepos | |
538 | + backend->debug_swap.external_hdr_size); | |
539 | ||
540 | /* Alpha ecoff makes the determination of raw_size difficult. It has | |
541 | an undocumented debug data section between the symhdr and the first | |
542 | documented section. And the ordering of the sections varies between | |
543 | statically and dynamically linked executables. | |
544 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
545 | ||
546 | raw_end = 0; | |
547 | ||
548 | #define UPDATE_RAW_END(start, count, size) \ | |
549 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
550 | if (cb_end > raw_end) \ | |
551 | raw_end = cb_end | |
552 | ||
553 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
554 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); | |
555 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); | |
556 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); | |
557 | UPDATE_RAW_END (cbOptOffset, ioptMax, backend->debug_swap.external_opt_size); | |
558 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); | |
559 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
560 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
561 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); | |
562 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); | |
563 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); | |
564 | ||
565 | #undef UPDATE_RAW_END | |
566 | ||
567 | raw_size = raw_end - raw_base; | |
568 | if (raw_size == 0) | |
569 | { | |
570 | ecoff_data (abfd)->sym_filepos = 0; | |
571 | return true; | |
572 | } | |
573 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
574 | if (raw == NULL) | |
575 | return false; | |
576 | if (bfd_seek (abfd, | |
577 | (ecoff_data (abfd)->sym_filepos | |
578 | + backend->debug_swap.external_hdr_size), | |
579 | SEEK_SET) != 0 | |
580 | || bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
581 | { | |
582 | bfd_release (abfd, raw); | |
583 | return false; | |
584 | } | |
585 | ||
586 | ecoff_data (abfd)->raw_syments = raw; | |
587 | ||
588 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
589 | #define FIX(off1, off2, type) \ | |
590 | if (internal_symhdr->off1 == 0) \ | |
591 | debug->off2 = (type) NULL; \ | |
592 | else \ | |
593 | debug->off2 = (type) ((char *) raw \ | |
594 | + (internal_symhdr->off1 \ | |
595 | - raw_base)) | |
596 | FIX (cbLineOffset, line, unsigned char *); | |
597 | FIX (cbDnOffset, external_dnr, PTR); | |
598 | FIX (cbPdOffset, external_pdr, PTR); | |
599 | FIX (cbSymOffset, external_sym, PTR); | |
600 | FIX (cbOptOffset, external_opt, PTR); | |
601 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
602 | FIX (cbSsOffset, ss, char *); | |
603 | FIX (cbSsExtOffset, ssext, char *); | |
604 | FIX (cbFdOffset, external_fdr, PTR); | |
605 | FIX (cbRfdOffset, external_rfd, PTR); | |
606 | FIX (cbExtOffset, external_ext, PTR); | |
607 | #undef FIX | |
608 | ||
609 | /* I don't want to always swap all the data, because it will just | |
610 | waste time and most programs will never look at it. The only | |
611 | time the linker needs most of the debugging information swapped | |
612 | is when linking big-endian and little-endian MIPS object files | |
613 | together, which is not a common occurrence. | |
614 | ||
615 | We need to look at the fdr to deal with a lot of information in | |
616 | the symbols, so we swap them here. */ | |
617 | debug->fdr = (struct fdr *) bfd_alloc (abfd, | |
618 | (internal_symhdr->ifdMax * | |
619 | sizeof (struct fdr))); | |
620 | if (debug->fdr == NULL) | |
621 | return false; | |
622 | external_fdr_size = backend->debug_swap.external_fdr_size; | |
623 | fdr_ptr = debug->fdr; | |
624 | fraw_src = (char *) debug->external_fdr; | |
625 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; | |
626 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
627 | (*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); | |
628 | ||
629 | return true; | |
630 | } | |
631 | \f | |
632 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
633 | in gcc/mips-tfile.c. */ | |
634 | ||
635 | /* ECOFF uses two common sections. One is the usual one, and the | |
636 | other is for small objects. All the small objects are kept | |
637 | together, and then referenced via the gp pointer, which yields | |
638 | faster assembler code. This is what we use for the small common | |
639 | section. */ | |
640 | static asection ecoff_scom_section; | |
641 | static asymbol ecoff_scom_symbol; | |
642 | static asymbol *ecoff_scom_symbol_ptr; | |
643 | ||
644 | /* Create an empty symbol. */ | |
645 | ||
646 | asymbol * | |
647 | _bfd_ecoff_make_empty_symbol (abfd) | |
648 | bfd *abfd; | |
649 | { | |
650 | ecoff_symbol_type *new; | |
651 | ||
652 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
653 | if (new == (ecoff_symbol_type *) NULL) | |
654 | return (asymbol *) NULL; | |
655 | memset ((PTR) new, 0, sizeof *new); | |
656 | new->symbol.section = (asection *) NULL; | |
657 | new->fdr = (FDR *) NULL; | |
658 | new->local = false; | |
659 | new->native = NULL; | |
660 | new->symbol.the_bfd = abfd; | |
661 | return &new->symbol; | |
662 | } | |
663 | ||
664 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
665 | ||
666 | static boolean | |
667 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, weak) | |
668 | bfd *abfd; | |
669 | SYMR *ecoff_sym; | |
670 | asymbol *asym; | |
671 | int ext; | |
672 | int weak; | |
673 | { | |
674 | asym->the_bfd = abfd; | |
675 | asym->value = ecoff_sym->value; | |
676 | asym->section = &bfd_debug_section; | |
677 | asym->udata.i = 0; | |
678 | ||
679 | /* Most symbol types are just for debugging. */ | |
680 | switch (ecoff_sym->st) | |
681 | { | |
682 | case stGlobal: | |
683 | case stStatic: | |
684 | case stLabel: | |
685 | case stProc: | |
686 | case stStaticProc: | |
687 | break; | |
688 | case stNil: | |
689 | if (ECOFF_IS_STAB (ecoff_sym)) | |
690 | { | |
691 | asym->flags = BSF_DEBUGGING; | |
692 | return true; | |
693 | } | |
694 | break; | |
695 | default: | |
696 | asym->flags = BSF_DEBUGGING; | |
697 | return true; | |
698 | } | |
699 | ||
700 | if (weak) | |
701 | asym->flags = BSF_EXPORT | BSF_WEAK; | |
702 | else if (ext) | |
703 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
704 | else | |
705 | { | |
706 | asym->flags = BSF_LOCAL; | |
707 | /* Normally, a local stProc symbol will have a corresponding | |
708 | external symbol. We mark the local symbol as a debugging | |
709 | symbol, in order to prevent nm from printing both out. | |
710 | Similarly, we mark stLabel and stabs symbols as debugging | |
711 | symbols. In both cases, we do want to set the value | |
712 | correctly based on the symbol class. */ | |
713 | if (ecoff_sym->st == stProc | |
714 | || ecoff_sym->st == stLabel | |
715 | || ECOFF_IS_STAB (ecoff_sym)) | |
716 | asym->flags |= BSF_DEBUGGING; | |
717 | } | |
718 | switch (ecoff_sym->sc) | |
719 | { | |
720 | case scNil: | |
721 | /* Used for compiler generated labels. Leave them in the | |
722 | debugging section, and mark them as local. If BSF_DEBUGGING | |
723 | is set, then nm does not display them for some reason. If no | |
724 | flags are set then the linker whines about them. */ | |
725 | asym->flags = BSF_LOCAL; | |
726 | break; | |
727 | case scText: | |
728 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
729 | asym->value -= asym->section->vma; | |
730 | break; | |
731 | case scData: | |
732 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
733 | asym->value -= asym->section->vma; | |
734 | break; | |
735 | case scBss: | |
736 | asym->section = bfd_make_section_old_way (abfd, ".bss"); | |
737 | asym->value -= asym->section->vma; | |
738 | break; | |
739 | case scRegister: | |
740 | asym->flags = BSF_DEBUGGING; | |
741 | break; | |
742 | case scAbs: | |
743 | asym->section = bfd_abs_section_ptr; | |
744 | break; | |
745 | case scUndefined: | |
746 | asym->section = bfd_und_section_ptr; | |
747 | asym->flags = 0; | |
748 | asym->value = 0; | |
749 | break; | |
750 | case scCdbLocal: | |
751 | case scBits: | |
752 | case scCdbSystem: | |
753 | case scRegImage: | |
754 | case scInfo: | |
755 | case scUserStruct: | |
756 | asym->flags = BSF_DEBUGGING; | |
757 | break; | |
758 | case scSData: | |
759 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
760 | asym->value -= asym->section->vma; | |
761 | break; | |
762 | case scSBss: | |
763 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
764 | asym->value -= asym->section->vma; | |
765 | break; | |
766 | case scRData: | |
767 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
768 | asym->value -= asym->section->vma; | |
769 | break; | |
770 | case scVar: | |
771 | asym->flags = BSF_DEBUGGING; | |
772 | break; | |
773 | case scCommon: | |
774 | if (asym->value > ecoff_data (abfd)->gp_size) | |
775 | { | |
776 | asym->section = bfd_com_section_ptr; | |
777 | asym->flags = 0; | |
778 | break; | |
779 | } | |
780 | /* Fall through. */ | |
781 | case scSCommon: | |
782 | if (ecoff_scom_section.name == NULL) | |
783 | { | |
784 | /* Initialize the small common section. */ | |
785 | ecoff_scom_section.name = SCOMMON; | |
786 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
787 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
788 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
789 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
790 | ecoff_scom_symbol.name = SCOMMON; | |
791 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
792 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
793 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
794 | } | |
795 | asym->section = &ecoff_scom_section; | |
796 | asym->flags = 0; | |
797 | break; | |
798 | case scVarRegister: | |
799 | case scVariant: | |
800 | asym->flags = BSF_DEBUGGING; | |
801 | break; | |
802 | case scSUndefined: | |
803 | asym->section = bfd_und_section_ptr; | |
804 | asym->flags = 0; | |
805 | asym->value = 0; | |
806 | break; | |
807 | case scInit: | |
808 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
809 | asym->value -= asym->section->vma; | |
810 | break; | |
811 | case scBasedVar: | |
812 | case scXData: | |
813 | case scPData: | |
814 | asym->flags = BSF_DEBUGGING; | |
815 | break; | |
816 | case scFini: | |
817 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
818 | asym->value -= asym->section->vma; | |
819 | break; | |
820 | case scRConst: | |
821 | asym->section = bfd_make_section_old_way (abfd, ".rconst"); | |
822 | asym->value -= asym->section->vma; | |
823 | break; | |
824 | default: | |
825 | break; | |
826 | } | |
827 | ||
828 | /* Look for special constructors symbols and make relocation entries | |
829 | in a special construction section. These are produced by the | |
830 | -fgnu-linker argument to g++. */ | |
831 | if (ECOFF_IS_STAB (ecoff_sym)) | |
832 | { | |
833 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
834 | { | |
835 | default: | |
836 | break; | |
837 | ||
838 | case N_SETA: | |
839 | case N_SETT: | |
840 | case N_SETD: | |
841 | case N_SETB: | |
842 | { | |
843 | /* This code is no longer needed. It used to be used to | |
844 | make the linker handle set symbols, but they are now | |
845 | handled in the add_symbols routine instead. */ | |
846 | #if 0 | |
847 | const char *name; | |
848 | asection *section; | |
849 | arelent_chain *reloc_chain; | |
850 | unsigned int bitsize; | |
851 | ||
852 | /* Get a section with the same name as the symbol (usually | |
853 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
854 | name ___CTOR_LIST (three underscores). We need | |
855 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
856 | a leading underscore. This should be handled by gcc, | |
857 | but instead we do it here. Actually, this should all | |
858 | be done differently anyhow. */ | |
859 | name = bfd_asymbol_name (asym); | |
860 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
861 | { | |
862 | ++name; | |
863 | asym->name = name; | |
864 | } | |
865 | section = bfd_get_section_by_name (abfd, name); | |
866 | if (section == (asection *) NULL) | |
867 | { | |
868 | char *copy; | |
869 | ||
870 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
871 | if (!copy) | |
872 | return false; | |
873 | strcpy (copy, name); | |
874 | section = bfd_make_section (abfd, copy); | |
875 | } | |
876 | ||
877 | /* Build a reloc pointing to this constructor. */ | |
878 | reloc_chain = | |
879 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
880 | if (!reloc_chain) | |
881 | return false; | |
882 | reloc_chain->relent.sym_ptr_ptr = | |
883 | bfd_get_section (asym)->symbol_ptr_ptr; | |
884 | reloc_chain->relent.address = section->_raw_size; | |
885 | reloc_chain->relent.addend = asym->value; | |
886 | reloc_chain->relent.howto = | |
887 | ecoff_backend (abfd)->constructor_reloc; | |
888 | ||
889 | /* Set up the constructor section to hold the reloc. */ | |
890 | section->flags = SEC_CONSTRUCTOR; | |
891 | ++section->reloc_count; | |
892 | ||
893 | /* Constructor sections must be rounded to a boundary | |
894 | based on the bitsize. These are not real sections-- | |
895 | they are handled specially by the linker--so the ECOFF | |
896 | 16 byte alignment restriction does not apply. */ | |
897 | bitsize = ecoff_backend (abfd)->constructor_bitsize; | |
898 | section->alignment_power = 1; | |
899 | while ((1 << section->alignment_power) < bitsize / 8) | |
900 | ++section->alignment_power; | |
901 | ||
902 | reloc_chain->next = section->constructor_chain; | |
903 | section->constructor_chain = reloc_chain; | |
904 | section->_raw_size += bitsize / 8; | |
905 | ||
906 | #endif /* 0 */ | |
907 | ||
908 | /* Mark the symbol as a constructor. */ | |
909 | asym->flags |= BSF_CONSTRUCTOR; | |
910 | } | |
911 | break; | |
912 | } | |
913 | } | |
914 | return true; | |
915 | } | |
916 | ||
917 | /* Read an ECOFF symbol table. */ | |
918 | ||
919 | boolean | |
920 | _bfd_ecoff_slurp_symbol_table (abfd) | |
921 | bfd *abfd; | |
922 | { | |
923 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
924 | const bfd_size_type external_ext_size | |
925 | = backend->debug_swap.external_ext_size; | |
926 | const bfd_size_type external_sym_size | |
927 | = backend->debug_swap.external_sym_size; | |
928 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
929 | = backend->debug_swap.swap_ext_in; | |
930 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
931 | = backend->debug_swap.swap_sym_in; | |
932 | bfd_size_type internal_size; | |
933 | ecoff_symbol_type *internal; | |
934 | ecoff_symbol_type *internal_ptr; | |
935 | char *eraw_src; | |
936 | char *eraw_end; | |
937 | FDR *fdr_ptr; | |
938 | FDR *fdr_end; | |
939 | ||
940 | /* If we've already read in the symbol table, do nothing. */ | |
941 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
942 | return true; | |
943 | ||
944 | /* Get the symbolic information. */ | |
945 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, | |
946 | &ecoff_data (abfd)->debug_info)) | |
947 | return false; | |
948 | if (bfd_get_symcount (abfd) == 0) | |
949 | return true; | |
950 | ||
951 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
952 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
953 | if (internal == NULL) | |
954 | return false; | |
955 | ||
956 | internal_ptr = internal; | |
957 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; | |
958 | eraw_end = (eraw_src | |
959 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax | |
960 | * external_ext_size)); | |
961 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
962 | { | |
963 | EXTR internal_esym; | |
964 | ||
965 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
966 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext | |
967 | + internal_esym.asym.iss); | |
968 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
969 | &internal_ptr->symbol, 1, | |
970 | internal_esym.weakext)) | |
971 | return false; | |
972 | /* The alpha uses a negative ifd field for section symbols. */ | |
973 | if (internal_esym.ifd >= 0) | |
974 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr | |
975 | + internal_esym.ifd); | |
976 | else | |
977 | internal_ptr->fdr = NULL; | |
978 | internal_ptr->local = false; | |
979 | internal_ptr->native = (PTR) eraw_src; | |
980 | } | |
981 | ||
982 | /* The local symbols must be accessed via the fdr's, because the | |
983 | string and aux indices are relative to the fdr information. */ | |
984 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; | |
985 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
986 | for (; fdr_ptr < fdr_end; fdr_ptr++) | |
987 | { | |
988 | char *lraw_src; | |
989 | char *lraw_end; | |
990 | ||
991 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym | |
992 | + fdr_ptr->isymBase * external_sym_size); | |
993 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
994 | for (; | |
995 | lraw_src < lraw_end; | |
996 | lraw_src += external_sym_size, internal_ptr++) | |
997 | { | |
998 | SYMR internal_sym; | |
999 | ||
1000 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
1001 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss | |
1002 | + fdr_ptr->issBase | |
1003 | + internal_sym.iss); | |
1004 | if (!ecoff_set_symbol_info (abfd, &internal_sym, | |
1005 | &internal_ptr->symbol, 0, 0)) | |
1006 | return false; | |
1007 | internal_ptr->fdr = fdr_ptr; | |
1008 | internal_ptr->local = true; | |
1009 | internal_ptr->native = (PTR) lraw_src; | |
1010 | } | |
1011 | } | |
1012 | ||
1013 | ecoff_data (abfd)->canonical_symbols = internal; | |
1014 | ||
1015 | return true; | |
1016 | } | |
1017 | ||
1018 | /* Return the amount of space needed for the canonical symbols. */ | |
1019 | ||
1020 | long | |
1021 | _bfd_ecoff_get_symtab_upper_bound (abfd) | |
1022 | bfd *abfd; | |
1023 | { | |
1024 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, | |
1025 | &ecoff_data (abfd)->debug_info)) | |
1026 | return -1; | |
1027 | ||
1028 | if (bfd_get_symcount (abfd) == 0) | |
1029 | return 0; | |
1030 | ||
1031 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1032 | } | |
1033 | ||
1034 | /* Get the canonical symbols. */ | |
1035 | ||
1036 | long | |
1037 | _bfd_ecoff_get_symtab (abfd, alocation) | |
1038 | bfd *abfd; | |
1039 | asymbol **alocation; | |
1040 | { | |
1041 | unsigned int counter = 0; | |
1042 | ecoff_symbol_type *symbase; | |
1043 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1044 | ||
1045 | if (_bfd_ecoff_slurp_symbol_table (abfd) == false) | |
1046 | return -1; | |
1047 | if (bfd_get_symcount (abfd) == 0) | |
1048 | return 0; | |
1049 | ||
1050 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1051 | while (counter < bfd_get_symcount (abfd)) | |
1052 | { | |
1053 | *(location++) = symbase++; | |
1054 | counter++; | |
1055 | } | |
1056 | *location++ = (ecoff_symbol_type *) NULL; | |
1057 | return bfd_get_symcount (abfd); | |
1058 | } | |
1059 | ||
1060 | /* Turn ECOFF type information into a printable string. | |
1061 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1062 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1063 | ||
1064 | /* Write aggregate information to a string. */ | |
1065 | ||
1066 | static void | |
1067 | ecoff_emit_aggregate (abfd, fdr, string, rndx, isym, which) | |
1068 | bfd *abfd; | |
1069 | FDR *fdr; | |
1070 | char *string; | |
1071 | RNDXR *rndx; | |
1072 | long isym; | |
1073 | const char *which; | |
1074 | { | |
1075 | const struct ecoff_debug_swap * const debug_swap = | |
1076 | &ecoff_backend (abfd)->debug_swap; | |
1077 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; | |
1078 | unsigned int ifd = rndx->rfd; | |
1079 | unsigned int indx = rndx->index; | |
1080 | const char *name; | |
1081 | ||
1082 | if (ifd == 0xfff) | |
1083 | ifd = isym; | |
1084 | ||
1085 | /* An ifd of -1 is an opaque type. An escaped index of 0 is a | |
1086 | struct return type of a procedure compiled without -g. */ | |
1087 | if (ifd == 0xffffffff | |
1088 | || (rndx->rfd == 0xfff && indx == 0)) | |
1089 | name = "<undefined>"; | |
1090 | else if (indx == indexNil) | |
1091 | name = "<no name>"; | |
1092 | else | |
1093 | { | |
1094 | SYMR sym; | |
1095 | ||
1096 | if (debug_info->external_rfd == NULL) | |
1097 | fdr = debug_info->fdr + ifd; | |
1098 | else | |
1099 | { | |
1100 | RFDT rfd; | |
1101 | ||
1102 | (*debug_swap->swap_rfd_in) (abfd, | |
1103 | ((char *) debug_info->external_rfd | |
1104 | + ((fdr->rfdBase + ifd) | |
1105 | * debug_swap->external_rfd_size)), | |
1106 | &rfd); | |
1107 | fdr = debug_info->fdr + rfd; | |
1108 | } | |
1109 | ||
1110 | indx += fdr->isymBase; | |
1111 | ||
1112 | (*debug_swap->swap_sym_in) (abfd, | |
1113 | ((char *) debug_info->external_sym | |
1114 | + indx * debug_swap->external_sym_size), | |
1115 | &sym); | |
1116 | ||
1117 | name = debug_info->ss + fdr->issBase + sym.iss; | |
1118 | } | |
1119 | ||
1120 | sprintf (string, | |
1121 | "%s %s { ifd = %u, index = %lu }", | |
1122 | which, name, ifd, | |
1123 | ((long) indx | |
1124 | + debug_info->symbolic_header.iextMax)); | |
1125 | } | |
1126 | ||
1127 | /* Convert the type information to string format. */ | |
1128 | ||
1129 | static char * | |
1130 | ecoff_type_to_string (abfd, fdr, indx) | |
1131 | bfd *abfd; | |
1132 | FDR *fdr; | |
1133 | unsigned int indx; | |
1134 | { | |
1135 | union aux_ext *aux_ptr; | |
1136 | int bigendian; | |
1137 | AUXU u; | |
1138 | struct qual { | |
1139 | unsigned int type; | |
1140 | int low_bound; | |
1141 | int high_bound; | |
1142 | int stride; | |
1143 | } qualifiers[7]; | |
1144 | unsigned int basic_type; | |
1145 | int i; | |
1146 | char buffer1[1024]; | |
1147 | static char buffer2[1024]; | |
1148 | char *p1 = buffer1; | |
1149 | char *p2 = buffer2; | |
1150 | RNDXR rndx; | |
1151 | ||
1152 | aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase; | |
1153 | bigendian = fdr->fBigendian; | |
1154 | ||
1155 | for (i = 0; i < 7; i++) | |
1156 | { | |
1157 | qualifiers[i].low_bound = 0; | |
1158 | qualifiers[i].high_bound = 0; | |
1159 | qualifiers[i].stride = 0; | |
1160 | } | |
1161 | ||
1162 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == (bfd_vma) -1) | |
1163 | return "-1 (no type)"; | |
1164 | _bfd_ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1165 | ||
1166 | basic_type = u.ti.bt; | |
1167 | qualifiers[0].type = u.ti.tq0; | |
1168 | qualifiers[1].type = u.ti.tq1; | |
1169 | qualifiers[2].type = u.ti.tq2; | |
1170 | qualifiers[3].type = u.ti.tq3; | |
1171 | qualifiers[4].type = u.ti.tq4; | |
1172 | qualifiers[5].type = u.ti.tq5; | |
1173 | qualifiers[6].type = tqNil; | |
1174 | ||
1175 | /* | |
1176 | * Go get the basic type. | |
1177 | */ | |
1178 | switch (basic_type) | |
1179 | { | |
1180 | case btNil: /* undefined */ | |
1181 | strcpy (p1, "nil"); | |
1182 | break; | |
1183 | ||
1184 | case btAdr: /* address - integer same size as pointer */ | |
1185 | strcpy (p1, "address"); | |
1186 | break; | |
1187 | ||
1188 | case btChar: /* character */ | |
1189 | strcpy (p1, "char"); | |
1190 | break; | |
1191 | ||
1192 | case btUChar: /* unsigned character */ | |
1193 | strcpy (p1, "unsigned char"); | |
1194 | break; | |
1195 | ||
1196 | case btShort: /* short */ | |
1197 | strcpy (p1, "short"); | |
1198 | break; | |
1199 | ||
1200 | case btUShort: /* unsigned short */ | |
1201 | strcpy (p1, "unsigned short"); | |
1202 | break; | |
1203 | ||
1204 | case btInt: /* int */ | |
1205 | strcpy (p1, "int"); | |
1206 | break; | |
1207 | ||
1208 | case btUInt: /* unsigned int */ | |
1209 | strcpy (p1, "unsigned int"); | |
1210 | break; | |
1211 | ||
1212 | case btLong: /* long */ | |
1213 | strcpy (p1, "long"); | |
1214 | break; | |
1215 | ||
1216 | case btULong: /* unsigned long */ | |
1217 | strcpy (p1, "unsigned long"); | |
1218 | break; | |
1219 | ||
1220 | case btFloat: /* float (real) */ | |
1221 | strcpy (p1, "float"); | |
1222 | break; | |
1223 | ||
1224 | case btDouble: /* Double (real) */ | |
1225 | strcpy (p1, "double"); | |
1226 | break; | |
1227 | ||
1228 | /* Structures add 1-2 aux words: | |
1229 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1230 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1231 | ||
1232 | case btStruct: /* Structure (Record) */ | |
1233 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1234 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1235 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1236 | "struct"); | |
1237 | indx++; /* skip aux words */ | |
1238 | break; | |
1239 | ||
1240 | /* Unions add 1-2 aux words: | |
1241 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1242 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1243 | ||
1244 | case btUnion: /* Union */ | |
1245 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1246 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1247 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1248 | "union"); | |
1249 | indx++; /* skip aux words */ | |
1250 | break; | |
1251 | ||
1252 | /* Enumerations add 1-2 aux words: | |
1253 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1254 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1255 | ||
1256 | case btEnum: /* Enumeration */ | |
1257 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1258 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1259 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1260 | "enum"); | |
1261 | indx++; /* skip aux words */ | |
1262 | break; | |
1263 | ||
1264 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1265 | strcpy (p1, "typedef"); | |
1266 | break; | |
1267 | ||
1268 | case btRange: /* subrange of int */ | |
1269 | strcpy (p1, "subrange"); | |
1270 | break; | |
1271 | ||
1272 | case btSet: /* pascal sets */ | |
1273 | strcpy (p1, "set"); | |
1274 | break; | |
1275 | ||
1276 | case btComplex: /* fortran complex */ | |
1277 | strcpy (p1, "complex"); | |
1278 | break; | |
1279 | ||
1280 | case btDComplex: /* fortran double complex */ | |
1281 | strcpy (p1, "double complex"); | |
1282 | break; | |
1283 | ||
1284 | case btIndirect: /* forward or unnamed typedef */ | |
1285 | strcpy (p1, "forward/unamed typedef"); | |
1286 | break; | |
1287 | ||
1288 | case btFixedDec: /* Fixed Decimal */ | |
1289 | strcpy (p1, "fixed decimal"); | |
1290 | break; | |
1291 | ||
1292 | case btFloatDec: /* Float Decimal */ | |
1293 | strcpy (p1, "float decimal"); | |
1294 | break; | |
1295 | ||
1296 | case btString: /* Varying Length Character String */ | |
1297 | strcpy (p1, "string"); | |
1298 | break; | |
1299 | ||
1300 | case btBit: /* Aligned Bit String */ | |
1301 | strcpy (p1, "bit"); | |
1302 | break; | |
1303 | ||
1304 | case btPicture: /* Picture */ | |
1305 | strcpy (p1, "picture"); | |
1306 | break; | |
1307 | ||
1308 | case btVoid: /* Void */ | |
1309 | strcpy (p1, "void"); | |
1310 | break; | |
1311 | ||
1312 | default: | |
1313 | sprintf (p1, _("Unknown basic type %d"), (int) basic_type); | |
1314 | break; | |
1315 | } | |
1316 | ||
1317 | p1 += strlen (buffer1); | |
1318 | ||
1319 | /* | |
1320 | * If this is a bitfield, get the bitsize. | |
1321 | */ | |
1322 | if (u.ti.fBitfield) | |
1323 | { | |
1324 | int bitsize; | |
1325 | ||
1326 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1327 | sprintf (p1, " : %d", bitsize); | |
1328 | p1 += strlen (buffer1); | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /* | |
1333 | * Deal with any qualifiers. | |
1334 | */ | |
1335 | if (qualifiers[0].type != tqNil) | |
1336 | { | |
1337 | /* | |
1338 | * Snarf up any array bounds in the correct order. Arrays | |
1339 | * store 5 successive words in the aux. table: | |
1340 | * word 0 RNDXR to type of the bounds (ie, int) | |
1341 | * word 1 Current file descriptor index | |
1342 | * word 2 low bound | |
1343 | * word 3 high bound (or -1 if []) | |
1344 | * word 4 stride size in bits | |
1345 | */ | |
1346 | for (i = 0; i < 7; i++) | |
1347 | { | |
1348 | if (qualifiers[i].type == tqArray) | |
1349 | { | |
1350 | qualifiers[i].low_bound = | |
1351 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1352 | qualifiers[i].high_bound = | |
1353 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1354 | qualifiers[i].stride = | |
1355 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1356 | indx += 5; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | /* | |
1361 | * Now print out the qualifiers. | |
1362 | */ | |
1363 | for (i = 0; i < 6; i++) | |
1364 | { | |
1365 | switch (qualifiers[i].type) | |
1366 | { | |
1367 | case tqNil: | |
1368 | case tqMax: | |
1369 | break; | |
1370 | ||
1371 | case tqPtr: | |
1372 | strcpy (p2, "ptr to "); | |
1373 | p2 += sizeof ("ptr to ")-1; | |
1374 | break; | |
1375 | ||
1376 | case tqVol: | |
1377 | strcpy (p2, "volatile "); | |
1378 | p2 += sizeof ("volatile ")-1; | |
1379 | break; | |
1380 | ||
1381 | case tqFar: | |
1382 | strcpy (p2, "far "); | |
1383 | p2 += sizeof ("far ")-1; | |
1384 | break; | |
1385 | ||
1386 | case tqProc: | |
1387 | strcpy (p2, "func. ret. "); | |
1388 | p2 += sizeof ("func. ret. "); | |
1389 | break; | |
1390 | ||
1391 | case tqArray: | |
1392 | { | |
1393 | int first_array = i; | |
1394 | int j; | |
1395 | ||
1396 | /* Print array bounds reversed (ie, in the order the C | |
1397 | programmer writes them). C is such a fun language.... */ | |
1398 | ||
1399 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1400 | i++; | |
1401 | ||
1402 | for (j = i; j >= first_array; j--) | |
1403 | { | |
1404 | strcpy (p2, "array ["); | |
1405 | p2 += sizeof ("array [")-1; | |
1406 | if (qualifiers[j].low_bound != 0) | |
1407 | sprintf (p2, | |
1408 | "%ld:%ld {%ld bits}", | |
1409 | (long) qualifiers[j].low_bound, | |
1410 | (long) qualifiers[j].high_bound, | |
1411 | (long) qualifiers[j].stride); | |
1412 | ||
1413 | else if (qualifiers[j].high_bound != -1) | |
1414 | sprintf (p2, | |
1415 | "%ld {%ld bits}", | |
1416 | (long) (qualifiers[j].high_bound + 1), | |
1417 | (long) (qualifiers[j].stride)); | |
1418 | ||
1419 | else | |
1420 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1421 | ||
1422 | p2 += strlen (p2); | |
1423 | strcpy (p2, "] of "); | |
1424 | p2 += sizeof ("] of ")-1; | |
1425 | } | |
1426 | } | |
1427 | break; | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | strcpy (p2, buffer1); | |
1433 | return buffer2; | |
1434 | } | |
1435 | ||
1436 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1437 | ||
1438 | /*ARGSUSED*/ | |
1439 | void | |
1440 | _bfd_ecoff_get_symbol_info (abfd, symbol, ret) | |
5f771d47 | 1441 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1442 | asymbol *symbol; |
1443 | symbol_info *ret; | |
1444 | { | |
1445 | bfd_symbol_info (symbol, ret); | |
1446 | } | |
1447 | ||
1448 | /* Return whether this is a local label. */ | |
1449 | ||
1450 | /*ARGSUSED*/ | |
1451 | boolean | |
1452 | _bfd_ecoff_bfd_is_local_label_name (abfd, name) | |
5f771d47 | 1453 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1454 | const char *name; |
1455 | { | |
1456 | return name[0] == '$'; | |
1457 | } | |
1458 | ||
1459 | /* Print information about an ECOFF symbol. */ | |
1460 | ||
1461 | void | |
1462 | _bfd_ecoff_print_symbol (abfd, filep, symbol, how) | |
1463 | bfd *abfd; | |
1464 | PTR filep; | |
1465 | asymbol *symbol; | |
1466 | bfd_print_symbol_type how; | |
1467 | { | |
1468 | const struct ecoff_debug_swap * const debug_swap | |
1469 | = &ecoff_backend (abfd)->debug_swap; | |
1470 | FILE *file = (FILE *)filep; | |
1471 | ||
1472 | switch (how) | |
1473 | { | |
1474 | case bfd_print_symbol_name: | |
1475 | fprintf (file, "%s", symbol->name); | |
1476 | break; | |
1477 | case bfd_print_symbol_more: | |
1478 | if (ecoffsymbol (symbol)->local) | |
1479 | { | |
1480 | SYMR ecoff_sym; | |
1481 | ||
1482 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1483 | &ecoff_sym); | |
1484 | fprintf (file, "ecoff local "); | |
1485 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1486 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1487 | (unsigned) ecoff_sym.sc); | |
1488 | } | |
1489 | else | |
1490 | { | |
1491 | EXTR ecoff_ext; | |
1492 | ||
1493 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1494 | &ecoff_ext); | |
1495 | fprintf (file, "ecoff extern "); | |
1496 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1497 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1498 | (unsigned) ecoff_ext.asym.sc); | |
1499 | } | |
1500 | break; | |
1501 | case bfd_print_symbol_all: | |
1502 | /* Print out the symbols in a reasonable way */ | |
1503 | { | |
1504 | char type; | |
1505 | int pos; | |
1506 | EXTR ecoff_ext; | |
1507 | char jmptbl; | |
1508 | char cobol_main; | |
1509 | char weakext; | |
1510 | ||
1511 | if (ecoffsymbol (symbol)->local) | |
1512 | { | |
1513 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1514 | &ecoff_ext.asym); | |
1515 | type = 'l'; | |
1516 | pos = ((((char *) ecoffsymbol (symbol)->native | |
1517 | - (char *) ecoff_data (abfd)->debug_info.external_sym) | |
1518 | / debug_swap->external_sym_size) | |
1519 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); | |
1520 | jmptbl = ' '; | |
1521 | cobol_main = ' '; | |
1522 | weakext = ' '; | |
1523 | } | |
1524 | else | |
1525 | { | |
1526 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1527 | &ecoff_ext); | |
1528 | type = 'e'; | |
1529 | pos = (((char *) ecoffsymbol (symbol)->native | |
1530 | - (char *) ecoff_data (abfd)->debug_info.external_ext) | |
1531 | / debug_swap->external_ext_size); | |
1532 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1533 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1534 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1535 | } | |
1536 | ||
1537 | fprintf (file, "[%3d] %c ", | |
1538 | pos, type); | |
1539 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1540 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1541 | (unsigned) ecoff_ext.asym.st, | |
1542 | (unsigned) ecoff_ext.asym.sc, | |
1543 | (unsigned) ecoff_ext.asym.index, | |
1544 | jmptbl, cobol_main, weakext, | |
1545 | symbol->name); | |
1546 | ||
1547 | if (ecoffsymbol (symbol)->fdr != NULL | |
1548 | && ecoff_ext.asym.index != indexNil) | |
1549 | { | |
1550 | FDR *fdr; | |
1551 | unsigned int indx; | |
1552 | int bigendian; | |
1553 | bfd_size_type sym_base; | |
1554 | union aux_ext *aux_base; | |
1555 | ||
1556 | fdr = ecoffsymbol (symbol)->fdr; | |
1557 | indx = ecoff_ext.asym.index; | |
1558 | ||
1559 | /* sym_base is used to map the fdr relative indices which | |
1560 | appear in the file to the position number which we are | |
1561 | using. */ | |
1562 | sym_base = fdr->isymBase; | |
1563 | if (ecoffsymbol (symbol)->local) | |
1564 | sym_base += | |
1565 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
1566 | ||
1567 | /* aux_base is the start of the aux entries for this file; | |
1568 | asym.index is an offset from this. */ | |
1569 | aux_base = (ecoff_data (abfd)->debug_info.external_aux | |
1570 | + fdr->iauxBase); | |
1571 | ||
1572 | /* The aux entries are stored in host byte order; the | |
1573 | order is indicated by a bit in the fdr. */ | |
1574 | bigendian = fdr->fBigendian; | |
1575 | ||
1576 | /* This switch is basically from gcc/mips-tdump.c */ | |
1577 | switch (ecoff_ext.asym.st) | |
1578 | { | |
1579 | case stNil: | |
1580 | case stLabel: | |
1581 | break; | |
1582 | ||
1583 | case stFile: | |
1584 | case stBlock: | |
1585 | fprintf (file, _("\n End+1 symbol: %ld"), | |
1586 | (long) (indx + sym_base)); | |
1587 | break; | |
1588 | ||
1589 | case stEnd: | |
1590 | if (ecoff_ext.asym.sc == scText | |
1591 | || ecoff_ext.asym.sc == scInfo) | |
1592 | fprintf (file, _("\n First symbol: %ld"), | |
1593 | (long) (indx + sym_base)); | |
1594 | else | |
1595 | fprintf (file, _("\n First symbol: %ld"), | |
1596 | ((long) | |
1597 | (AUX_GET_ISYM (bigendian, | |
1598 | &aux_base[ecoff_ext.asym.index]) | |
1599 | + sym_base))); | |
1600 | break; | |
1601 | ||
1602 | case stProc: | |
1603 | case stStaticProc: | |
1604 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1605 | ; | |
1606 | else if (ecoffsymbol (symbol)->local) | |
1607 | fprintf (file, _("\n End+1 symbol: %-7ld Type: %s"), | |
1608 | ((long) | |
1609 | (AUX_GET_ISYM (bigendian, | |
1610 | &aux_base[ecoff_ext.asym.index]) | |
1611 | + sym_base)), | |
1612 | ecoff_type_to_string (abfd, fdr, indx + 1)); | |
1613 | else | |
1614 | fprintf (file, _("\n Local symbol: %ld"), | |
1615 | ((long) indx | |
1616 | + (long) sym_base | |
1617 | + (ecoff_data (abfd) | |
1618 | ->debug_info.symbolic_header.iextMax))); | |
1619 | break; | |
1620 | ||
1621 | case stStruct: | |
1622 | fprintf (file, _("\n struct; End+1 symbol: %ld"), | |
1623 | (long) (indx + sym_base)); | |
1624 | break; | |
1625 | ||
1626 | case stUnion: | |
1627 | fprintf (file, _("\n union; End+1 symbol: %ld"), | |
1628 | (long) (indx + sym_base)); | |
1629 | break; | |
1630 | ||
1631 | case stEnum: | |
1632 | fprintf (file, _("\n enum; End+1 symbol: %ld"), | |
1633 | (long) (indx + sym_base)); | |
1634 | break; | |
1635 | ||
1636 | default: | |
1637 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1638 | fprintf (file, _("\n Type: %s"), | |
1639 | ecoff_type_to_string (abfd, fdr, indx)); | |
1640 | break; | |
1641 | } | |
1642 | } | |
1643 | } | |
1644 | break; | |
1645 | } | |
1646 | } | |
1647 | \f | |
1648 | /* Read in the relocs for a section. */ | |
1649 | ||
1650 | static boolean | |
1651 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1652 | bfd *abfd; | |
1653 | asection *section; | |
1654 | asymbol **symbols; | |
1655 | { | |
1656 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1657 | arelent *internal_relocs; | |
1658 | bfd_size_type external_reloc_size; | |
1659 | bfd_size_type external_relocs_size; | |
1660 | char *external_relocs; | |
1661 | arelent *rptr; | |
1662 | unsigned int i; | |
1663 | ||
1664 | if (section->relocation != (arelent *) NULL | |
1665 | || section->reloc_count == 0 | |
1666 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1667 | return true; | |
1668 | ||
1669 | if (_bfd_ecoff_slurp_symbol_table (abfd) == false) | |
1670 | return false; | |
1671 | ||
1672 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1673 | (sizeof (arelent) | |
1674 | * section->reloc_count)); | |
1675 | external_reloc_size = backend->external_reloc_size; | |
1676 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1677 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1678 | if (internal_relocs == (arelent *) NULL | |
1679 | || external_relocs == (char *) NULL) | |
1680 | return false; | |
1681 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1682 | return false; | |
1683 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1684 | != external_relocs_size) | |
1685 | return false; | |
1686 | ||
1687 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1688 | { | |
1689 | struct internal_reloc intern; | |
1690 | ||
1691 | (*backend->swap_reloc_in) (abfd, | |
1692 | external_relocs + i * external_reloc_size, | |
1693 | &intern); | |
1694 | ||
1695 | if (intern.r_extern) | |
1696 | { | |
1697 | /* r_symndx is an index into the external symbols. */ | |
1698 | BFD_ASSERT (intern.r_symndx >= 0 | |
1699 | && (intern.r_symndx | |
1700 | < (ecoff_data (abfd) | |
1701 | ->debug_info.symbolic_header.iextMax))); | |
1702 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
1703 | rptr->addend = 0; | |
1704 | } | |
1705 | else if (intern.r_symndx == RELOC_SECTION_NONE | |
1706 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1707 | { | |
1708 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1709 | rptr->addend = 0; | |
1710 | } | |
1711 | else | |
1712 | { | |
1713 | CONST char *sec_name; | |
1714 | asection *sec; | |
1715 | ||
1716 | /* r_symndx is a section key. */ | |
1717 | switch (intern.r_symndx) | |
1718 | { | |
1719 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1720 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1721 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1722 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1723 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1724 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1725 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1726 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1727 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
1728 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; | |
1729 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
1730 | case RELOC_SECTION_FINI: sec_name = ".fini"; break; | |
1731 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; | |
1732 | case RELOC_SECTION_RCONST: sec_name = ".rconst"; break; | |
1733 | default: abort (); | |
1734 | } | |
1735 | ||
1736 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1737 | if (sec == (asection *) NULL) | |
1738 | abort (); | |
1739 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
1740 | ||
1741 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
1742 | } | |
1743 | ||
1744 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
1745 | ||
1746 | /* Let the backend select the howto field and do any other | |
1747 | required processing. */ | |
1748 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); | |
1749 | } | |
1750 | ||
1751 | bfd_release (abfd, external_relocs); | |
1752 | ||
1753 | section->relocation = internal_relocs; | |
1754 | ||
1755 | return true; | |
1756 | } | |
1757 | ||
1758 | /* Get a canonical list of relocs. */ | |
1759 | ||
1760 | long | |
1761 | _bfd_ecoff_canonicalize_reloc (abfd, section, relptr, symbols) | |
1762 | bfd *abfd; | |
1763 | asection *section; | |
1764 | arelent **relptr; | |
1765 | asymbol **symbols; | |
1766 | { | |
1767 | unsigned int count; | |
1768 | ||
1769 | if (section->flags & SEC_CONSTRUCTOR) | |
1770 | { | |
1771 | arelent_chain *chain; | |
1772 | ||
1773 | /* This section has relocs made up by us, not the file, so take | |
1774 | them out of their chain and place them into the data area | |
1775 | provided. */ | |
1776 | for (count = 0, chain = section->constructor_chain; | |
1777 | count < section->reloc_count; | |
1778 | count++, chain = chain->next) | |
1779 | *relptr++ = &chain->relent; | |
1780 | } | |
1781 | else | |
1782 | { | |
1783 | arelent *tblptr; | |
1784 | ||
1785 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1786 | return -1; | |
1787 | ||
1788 | tblptr = section->relocation; | |
1789 | ||
1790 | for (count = 0; count < section->reloc_count; count++) | |
1791 | *relptr++ = tblptr++; | |
1792 | } | |
1793 | ||
1794 | *relptr = (arelent *) NULL; | |
1795 | ||
1796 | return section->reloc_count; | |
1797 | } | |
1798 | \f | |
1799 | /* Provided a BFD, a section and an offset into the section, calculate | |
1800 | and return the name of the source file and the line nearest to the | |
1801 | wanted location. */ | |
1802 | ||
1803 | /*ARGSUSED*/ | |
1804 | boolean | |
1805 | _bfd_ecoff_find_nearest_line (abfd, section, ignore_symbols, offset, | |
1806 | filename_ptr, functionname_ptr, retline_ptr) | |
1807 | bfd *abfd; | |
1808 | asection *section; | |
5f771d47 | 1809 | asymbol **ignore_symbols ATTRIBUTE_UNUSED; |
252b5132 RH |
1810 | bfd_vma offset; |
1811 | CONST char **filename_ptr; | |
1812 | CONST char **functionname_ptr; | |
1813 | unsigned int *retline_ptr; | |
1814 | { | |
1815 | const struct ecoff_debug_swap * const debug_swap | |
1816 | = &ecoff_backend (abfd)->debug_swap; | |
1817 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; | |
1818 | struct ecoff_find_line *line_info; | |
1819 | ||
1820 | /* Make sure we have the FDR's. */ | |
1821 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, debug_info) | |
1822 | || bfd_get_symcount (abfd) == 0) | |
1823 | return false; | |
1824 | ||
1825 | if (ecoff_data (abfd)->find_line_info == NULL) | |
1826 | { | |
1827 | ecoff_data (abfd)->find_line_info = | |
1828 | ((struct ecoff_find_line *) | |
1829 | bfd_zalloc (abfd, sizeof (struct ecoff_find_line))); | |
1830 | if (ecoff_data (abfd)->find_line_info == NULL) | |
1831 | return false; | |
1832 | } | |
1833 | line_info = ecoff_data (abfd)->find_line_info; | |
1834 | ||
1835 | return _bfd_ecoff_locate_line (abfd, section, offset, debug_info, | |
1836 | debug_swap, line_info, filename_ptr, | |
1837 | functionname_ptr, retline_ptr); | |
1838 | } | |
1839 | \f | |
1840 | /* Copy private BFD data. This is called by objcopy and strip. We | |
1841 | use it to copy the ECOFF debugging information from one BFD to the | |
1842 | other. It would be theoretically possible to represent the ECOFF | |
1843 | debugging information in the symbol table. However, it would be a | |
1844 | lot of work, and there would be little gain (gas, gdb, and ld | |
1845 | already access the ECOFF debugging information via the | |
1846 | ecoff_debug_info structure, and that structure would have to be | |
1847 | retained in order to support ECOFF debugging in MIPS ELF). | |
1848 | ||
1849 | The debugging information for the ECOFF external symbols comes from | |
1850 | the symbol table, so this function only handles the other debugging | |
1851 | information. */ | |
1852 | ||
1853 | boolean | |
1854 | _bfd_ecoff_bfd_copy_private_bfd_data (ibfd, obfd) | |
1855 | bfd *ibfd; | |
1856 | bfd *obfd; | |
1857 | { | |
1858 | struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info; | |
1859 | struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info; | |
1860 | register int i; | |
1861 | asymbol **sym_ptr_ptr; | |
1862 | size_t c; | |
1863 | boolean local; | |
1864 | ||
1865 | /* We only want to copy information over if both BFD's use ECOFF | |
1866 | format. */ | |
1867 | if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour | |
1868 | || bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) | |
1869 | return true; | |
1870 | ||
1871 | /* Copy the GP value and the register masks. */ | |
1872 | ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp; | |
1873 | ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask; | |
1874 | ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask; | |
1875 | for (i = 0; i < 3; i++) | |
1876 | ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i]; | |
1877 | ||
1878 | /* Copy the version stamp. */ | |
1879 | oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp; | |
1880 | ||
1881 | /* If there are no symbols, don't copy any debugging information. */ | |
1882 | c = bfd_get_symcount (obfd); | |
1883 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
1884 | if (c == 0 || sym_ptr_ptr == (asymbol **) NULL) | |
1885 | return true; | |
1886 | ||
1887 | /* See if there are any local symbols. */ | |
1888 | local = false; | |
1889 | for (; c > 0; c--, sym_ptr_ptr++) | |
1890 | { | |
1891 | if (ecoffsymbol (*sym_ptr_ptr)->local) | |
1892 | { | |
1893 | local = true; | |
1894 | break; | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | if (local) | |
1899 | { | |
1900 | /* There are some local symbols. We just bring over all the | |
1901 | debugging information. FIXME: This is not quite the right | |
1902 | thing to do. If the user has asked us to discard all | |
1903 | debugging information, then we are probably going to wind up | |
1904 | keeping it because there will probably be some local symbol | |
1905 | which objcopy did not discard. We should actually break | |
1906 | apart the debugging information and only keep that which | |
1907 | applies to the symbols we want to keep. */ | |
1908 | oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax; | |
1909 | oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine; | |
1910 | oinfo->line = iinfo->line; | |
1911 | ||
1912 | oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax; | |
1913 | oinfo->external_dnr = iinfo->external_dnr; | |
1914 | ||
1915 | oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax; | |
1916 | oinfo->external_pdr = iinfo->external_pdr; | |
1917 | ||
1918 | oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax; | |
1919 | oinfo->external_sym = iinfo->external_sym; | |
1920 | ||
1921 | oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax; | |
1922 | oinfo->external_opt = iinfo->external_opt; | |
1923 | ||
1924 | oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax; | |
1925 | oinfo->external_aux = iinfo->external_aux; | |
1926 | ||
1927 | oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax; | |
1928 | oinfo->ss = iinfo->ss; | |
1929 | ||
1930 | oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax; | |
1931 | oinfo->external_fdr = iinfo->external_fdr; | |
1932 | ||
1933 | oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd; | |
1934 | oinfo->external_rfd = iinfo->external_rfd; | |
1935 | } | |
1936 | else | |
1937 | { | |
1938 | /* We are discarding all the local symbol information. Look | |
1939 | through the external symbols and remove all references to FDR | |
1940 | or aux information. */ | |
1941 | c = bfd_get_symcount (obfd); | |
1942 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
1943 | for (; c > 0; c--, sym_ptr_ptr++) | |
1944 | { | |
1945 | EXTR esym; | |
1946 | ||
1947 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_in)) | |
1948 | (obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym); | |
1949 | esym.ifd = ifdNil; | |
1950 | esym.asym.index = indexNil; | |
1951 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_out)) | |
1952 | (obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native); | |
1953 | } | |
1954 | } | |
1955 | ||
1956 | return true; | |
1957 | } | |
1958 | \f | |
1959 | /* Set the architecture. The supported architecture is stored in the | |
1960 | backend pointer. We always set the architecture anyhow, since many | |
1961 | callers ignore the return value. */ | |
1962 | ||
1963 | boolean | |
1964 | _bfd_ecoff_set_arch_mach (abfd, arch, machine) | |
1965 | bfd *abfd; | |
1966 | enum bfd_architecture arch; | |
1967 | unsigned long machine; | |
1968 | { | |
1969 | bfd_default_set_arch_mach (abfd, arch, machine); | |
1970 | return arch == ecoff_backend (abfd)->arch; | |
1971 | } | |
1972 | ||
1973 | /* Get the size of the section headers. */ | |
1974 | ||
1975 | /*ARGSUSED*/ | |
1976 | int | |
1977 | _bfd_ecoff_sizeof_headers (abfd, reloc) | |
1978 | bfd *abfd; | |
5f771d47 | 1979 | boolean reloc ATTRIBUTE_UNUSED; |
252b5132 RH |
1980 | { |
1981 | asection *current; | |
1982 | int c; | |
1983 | int ret; | |
1984 | ||
1985 | c = 0; | |
1986 | for (current = abfd->sections; | |
1987 | current != (asection *)NULL; | |
1988 | current = current->next) | |
1989 | ++c; | |
1990 | ||
1991 | ret = (bfd_coff_filhsz (abfd) | |
1992 | + bfd_coff_aoutsz (abfd) | |
1993 | + c * bfd_coff_scnhsz (abfd)); | |
1994 | return BFD_ALIGN (ret, 16); | |
1995 | } | |
1996 | ||
1997 | /* Get the contents of a section. */ | |
1998 | ||
1999 | boolean | |
2000 | _bfd_ecoff_get_section_contents (abfd, section, location, offset, count) | |
2001 | bfd *abfd; | |
2002 | asection *section; | |
2003 | PTR location; | |
2004 | file_ptr offset; | |
2005 | bfd_size_type count; | |
2006 | { | |
2007 | return _bfd_generic_get_section_contents (abfd, section, location, | |
2008 | offset, count); | |
2009 | } | |
2010 | ||
2011 | /* Sort sections by VMA, but put SEC_ALLOC sections first. This is | |
2012 | called via qsort. */ | |
2013 | ||
2014 | static int | |
2015 | ecoff_sort_hdrs (arg1, arg2) | |
2016 | const PTR arg1; | |
2017 | const PTR arg2; | |
2018 | { | |
2019 | const asection *hdr1 = *(const asection **) arg1; | |
2020 | const asection *hdr2 = *(const asection **) arg2; | |
2021 | ||
2022 | if ((hdr1->flags & SEC_ALLOC) != 0) | |
2023 | { | |
2024 | if ((hdr2->flags & SEC_ALLOC) == 0) | |
2025 | return -1; | |
2026 | } | |
2027 | else | |
2028 | { | |
2029 | if ((hdr2->flags & SEC_ALLOC) != 0) | |
2030 | return 1; | |
2031 | } | |
2032 | if (hdr1->vma < hdr2->vma) | |
2033 | return -1; | |
2034 | else if (hdr1->vma > hdr2->vma) | |
2035 | return 1; | |
2036 | else | |
2037 | return 0; | |
2038 | } | |
2039 | ||
2040 | /* Calculate the file position for each section, and set | |
2041 | reloc_filepos. */ | |
2042 | ||
2043 | static boolean | |
2044 | ecoff_compute_section_file_positions (abfd) | |
2045 | bfd *abfd; | |
2046 | { | |
2047 | file_ptr sofar, file_sofar; | |
2048 | asection **sorted_hdrs; | |
2049 | asection *current; | |
2050 | unsigned int i; | |
2051 | file_ptr old_sofar; | |
2052 | boolean rdata_in_text; | |
2053 | boolean first_data, first_nonalloc; | |
2054 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2055 | ||
2056 | sofar = _bfd_ecoff_sizeof_headers (abfd, false); | |
2057 | file_sofar = sofar; | |
2058 | ||
2059 | /* Sort the sections by VMA. */ | |
2060 | sorted_hdrs = (asection **) bfd_malloc (abfd->section_count | |
2061 | * sizeof (asection *)); | |
2062 | if (sorted_hdrs == NULL) | |
2063 | return false; | |
2064 | for (current = abfd->sections, i = 0; | |
2065 | current != NULL; | |
2066 | current = current->next, i++) | |
2067 | sorted_hdrs[i] = current; | |
2068 | BFD_ASSERT (i == abfd->section_count); | |
2069 | ||
2070 | qsort (sorted_hdrs, abfd->section_count, sizeof (asection *), | |
2071 | ecoff_sort_hdrs); | |
2072 | ||
2073 | /* Some versions of the OSF linker put the .rdata section in the | |
2074 | text segment, and some do not. */ | |
2075 | rdata_in_text = ecoff_backend (abfd)->rdata_in_text; | |
2076 | if (rdata_in_text) | |
2077 | { | |
2078 | for (i = 0; i < abfd->section_count; i++) | |
2079 | { | |
2080 | current = sorted_hdrs[i]; | |
2081 | if (strcmp (current->name, _RDATA) == 0) | |
2082 | break; | |
2083 | if ((current->flags & SEC_CODE) == 0 | |
2084 | && strcmp (current->name, _PDATA) != 0 | |
2085 | && strcmp (current->name, _RCONST) != 0) | |
2086 | { | |
2087 | rdata_in_text = false; | |
2088 | break; | |
2089 | } | |
2090 | } | |
2091 | } | |
2092 | ecoff_data (abfd)->rdata_in_text = rdata_in_text; | |
2093 | ||
2094 | first_data = true; | |
2095 | first_nonalloc = true; | |
2096 | for (i = 0; i < abfd->section_count; i++) | |
2097 | { | |
2098 | unsigned int alignment_power; | |
2099 | ||
2100 | current = sorted_hdrs[i]; | |
2101 | ||
2102 | /* For the Alpha ECOFF .pdata section the lnnoptr field is | |
2103 | supposed to indicate the number of .pdata entries that are | |
2104 | really in the section. Each entry is 8 bytes. We store this | |
2105 | away in line_filepos before increasing the section size. */ | |
2106 | if (strcmp (current->name, _PDATA) == 0) | |
2107 | current->line_filepos = current->_raw_size / 8; | |
2108 | ||
2109 | alignment_power = current->alignment_power; | |
2110 | ||
2111 | /* On Ultrix, the data sections in an executable file must be | |
2112 | aligned to a page boundary within the file. This does not | |
2113 | affect the section size, though. FIXME: Does this work for | |
2114 | other platforms? It requires some modification for the | |
2115 | Alpha, because .rdata on the Alpha goes with the text, not | |
2116 | the data. */ | |
2117 | if ((abfd->flags & EXEC_P) != 0 | |
2118 | && (abfd->flags & D_PAGED) != 0 | |
2119 | && ! first_data | |
2120 | && (current->flags & SEC_CODE) == 0 | |
2121 | && (! rdata_in_text | |
2122 | || strcmp (current->name, _RDATA) != 0) | |
2123 | && strcmp (current->name, _PDATA) != 0 | |
2124 | && strcmp (current->name, _RCONST) != 0) | |
2125 | { | |
2126 | sofar = (sofar + round - 1) &~ (round - 1); | |
2127 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
2128 | first_data = false; | |
2129 | } | |
2130 | else if (strcmp (current->name, _LIB) == 0) | |
2131 | { | |
2132 | /* On Irix 4, the location of contents of the .lib section | |
2133 | from a shared library section is also rounded up to a | |
2134 | page boundary. */ | |
2135 | ||
2136 | sofar = (sofar + round - 1) &~ (round - 1); | |
2137 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
2138 | } | |
2139 | else if (first_nonalloc | |
2140 | && (current->flags & SEC_ALLOC) == 0 | |
2141 | && (abfd->flags & D_PAGED) != 0) | |
2142 | { | |
2143 | /* Skip up to the next page for an unallocated section, such | |
2144 | as the .comment section on the Alpha. This leaves room | |
2145 | for the .bss section. */ | |
2146 | first_nonalloc = false; | |
2147 | sofar = (sofar + round - 1) &~ (round - 1); | |
2148 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
2149 | } | |
2150 | ||
2151 | /* Align the sections in the file to the same boundary on | |
2152 | which they are aligned in virtual memory. */ | |
2153 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); | |
2154 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2155 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); | |
2156 | ||
2157 | if ((abfd->flags & D_PAGED) != 0 | |
2158 | && (current->flags & SEC_ALLOC) != 0) | |
2159 | { | |
2160 | sofar += (current->vma - sofar) % round; | |
2161 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2162 | file_sofar += (current->vma - file_sofar) % round; | |
2163 | } | |
2164 | ||
2165 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0) | |
2166 | current->filepos = file_sofar; | |
2167 | ||
2168 | sofar += current->_raw_size; | |
2169 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2170 | file_sofar += current->_raw_size; | |
2171 | ||
2172 | /* make sure that this section is of the right size too */ | |
2173 | old_sofar = sofar; | |
2174 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); | |
2175 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2176 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); | |
2177 | current->_raw_size += sofar - old_sofar; | |
2178 | } | |
2179 | ||
2180 | free (sorted_hdrs); | |
2181 | sorted_hdrs = NULL; | |
2182 | ||
2183 | ecoff_data (abfd)->reloc_filepos = file_sofar; | |
2184 | ||
2185 | return true; | |
2186 | } | |
2187 | ||
2188 | /* Determine the location of the relocs for all the sections in the | |
2189 | output file, as well as the location of the symbolic debugging | |
2190 | information. */ | |
2191 | ||
2192 | static bfd_size_type | |
2193 | ecoff_compute_reloc_file_positions (abfd) | |
2194 | bfd *abfd; | |
2195 | { | |
2196 | const bfd_size_type external_reloc_size = | |
2197 | ecoff_backend (abfd)->external_reloc_size; | |
2198 | file_ptr reloc_base; | |
2199 | bfd_size_type reloc_size; | |
2200 | asection *current; | |
2201 | file_ptr sym_base; | |
2202 | ||
2203 | if (! abfd->output_has_begun) | |
2204 | { | |
2205 | if (! ecoff_compute_section_file_positions (abfd)) | |
2206 | abort (); | |
2207 | abfd->output_has_begun = true; | |
2208 | } | |
2209 | ||
2210 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2211 | ||
2212 | reloc_size = 0; | |
2213 | for (current = abfd->sections; | |
2214 | current != (asection *)NULL; | |
2215 | current = current->next) | |
2216 | { | |
2217 | if (current->reloc_count == 0) | |
2218 | current->rel_filepos = 0; | |
2219 | else | |
2220 | { | |
2221 | bfd_size_type relsize; | |
2222 | ||
2223 | current->rel_filepos = reloc_base; | |
2224 | relsize = current->reloc_count * external_reloc_size; | |
2225 | reloc_size += relsize; | |
2226 | reloc_base += relsize; | |
2227 | } | |
2228 | } | |
2229 | ||
2230 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; | |
2231 | ||
2232 | /* At least on Ultrix, the symbol table of an executable file must | |
2233 | be aligned to a page boundary. FIXME: Is this true on other | |
2234 | platforms? */ | |
2235 | if ((abfd->flags & EXEC_P) != 0 | |
2236 | && (abfd->flags & D_PAGED) != 0) | |
2237 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) | |
2238 | &~ (ecoff_backend (abfd)->round - 1)); | |
2239 | ||
2240 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2241 | ||
2242 | return reloc_size; | |
2243 | } | |
2244 | ||
2245 | /* Set the contents of a section. */ | |
2246 | ||
2247 | boolean | |
2248 | _bfd_ecoff_set_section_contents (abfd, section, location, offset, count) | |
2249 | bfd *abfd; | |
2250 | asection *section; | |
2251 | PTR location; | |
2252 | file_ptr offset; | |
2253 | bfd_size_type count; | |
2254 | { | |
2255 | /* This must be done first, because bfd_set_section_contents is | |
2256 | going to set output_has_begun to true. */ | |
2257 | if (abfd->output_has_begun == false) | |
2258 | { | |
2259 | if (! ecoff_compute_section_file_positions (abfd)) | |
2260 | return false; | |
2261 | } | |
2262 | ||
2263 | /* Handle the .lib section specially so that Irix 4 shared libraries | |
2264 | work out. See coff_set_section_contents in coffcode.h. */ | |
2265 | if (strcmp (section->name, _LIB) == 0) | |
2266 | { | |
2267 | bfd_byte *rec, *recend; | |
2268 | ||
2269 | rec = (bfd_byte *) location; | |
2270 | recend = rec + count; | |
2271 | while (rec < recend) | |
2272 | { | |
2273 | ++section->lma; | |
2274 | rec += bfd_get_32 (abfd, rec) * 4; | |
2275 | } | |
2276 | ||
2277 | BFD_ASSERT (rec == recend); | |
2278 | } | |
2279 | ||
2280 | if (count == 0) | |
2281 | return true; | |
2282 | ||
2283 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 | |
2284 | || bfd_write (location, 1, count, abfd) != count) | |
2285 | return false; | |
2286 | ||
2287 | return true; | |
2288 | } | |
2289 | ||
2290 | /* Get the GP value for an ECOFF file. This is a hook used by | |
2291 | nlmconv. */ | |
2292 | ||
2293 | bfd_vma | |
2294 | bfd_ecoff_get_gp_value (abfd) | |
2295 | bfd *abfd; | |
2296 | { | |
2297 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2298 | || bfd_get_format (abfd) != bfd_object) | |
2299 | { | |
2300 | bfd_set_error (bfd_error_invalid_operation); | |
2301 | return 0; | |
2302 | } | |
2303 | ||
2304 | return ecoff_data (abfd)->gp; | |
2305 | } | |
2306 | ||
2307 | /* Set the GP value for an ECOFF file. This is a hook used by the | |
2308 | assembler. */ | |
2309 | ||
2310 | boolean | |
2311 | bfd_ecoff_set_gp_value (abfd, gp_value) | |
2312 | bfd *abfd; | |
2313 | bfd_vma gp_value; | |
2314 | { | |
2315 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2316 | || bfd_get_format (abfd) != bfd_object) | |
2317 | { | |
2318 | bfd_set_error (bfd_error_invalid_operation); | |
2319 | return false; | |
2320 | } | |
2321 | ||
2322 | ecoff_data (abfd)->gp = gp_value; | |
2323 | ||
2324 | return true; | |
2325 | } | |
2326 | ||
2327 | /* Set the register masks for an ECOFF file. This is a hook used by | |
2328 | the assembler. */ | |
2329 | ||
2330 | boolean | |
2331 | bfd_ecoff_set_regmasks (abfd, gprmask, fprmask, cprmask) | |
2332 | bfd *abfd; | |
2333 | unsigned long gprmask; | |
2334 | unsigned long fprmask; | |
2335 | unsigned long *cprmask; | |
2336 | { | |
2337 | ecoff_data_type *tdata; | |
2338 | ||
2339 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2340 | || bfd_get_format (abfd) != bfd_object) | |
2341 | { | |
2342 | bfd_set_error (bfd_error_invalid_operation); | |
2343 | return false; | |
2344 | } | |
2345 | ||
2346 | tdata = ecoff_data (abfd); | |
2347 | tdata->gprmask = gprmask; | |
2348 | tdata->fprmask = fprmask; | |
2349 | if (cprmask != (unsigned long *) NULL) | |
2350 | { | |
2351 | register int i; | |
2352 | ||
2353 | for (i = 0; i < 3; i++) | |
2354 | tdata->cprmask[i] = cprmask[i]; | |
2355 | } | |
2356 | ||
2357 | return true; | |
2358 | } | |
2359 | ||
2360 | /* Get ECOFF EXTR information for an external symbol. This function | |
2361 | is passed to bfd_ecoff_debug_externals. */ | |
2362 | ||
2363 | static boolean | |
2364 | ecoff_get_extr (sym, esym) | |
2365 | asymbol *sym; | |
2366 | EXTR *esym; | |
2367 | { | |
2368 | ecoff_symbol_type *ecoff_sym_ptr; | |
2369 | bfd *input_bfd; | |
2370 | ||
2371 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour | |
2372 | || ecoffsymbol (sym)->native == NULL) | |
2373 | { | |
2374 | /* Don't include debugging, local, or section symbols. */ | |
2375 | if ((sym->flags & BSF_DEBUGGING) != 0 | |
2376 | || (sym->flags & BSF_LOCAL) != 0 | |
2377 | || (sym->flags & BSF_SECTION_SYM) != 0) | |
2378 | return false; | |
2379 | ||
2380 | esym->jmptbl = 0; | |
2381 | esym->cobol_main = 0; | |
2382 | esym->weakext = (sym->flags & BSF_WEAK) != 0; | |
2383 | esym->reserved = 0; | |
2384 | esym->ifd = ifdNil; | |
2385 | /* FIXME: we can do better than this for st and sc. */ | |
2386 | esym->asym.st = stGlobal; | |
2387 | esym->asym.sc = scAbs; | |
2388 | esym->asym.reserved = 0; | |
2389 | esym->asym.index = indexNil; | |
2390 | return true; | |
2391 | } | |
2392 | ||
2393 | ecoff_sym_ptr = ecoffsymbol (sym); | |
2394 | ||
2395 | if (ecoff_sym_ptr->local) | |
2396 | return false; | |
2397 | ||
2398 | input_bfd = bfd_asymbol_bfd (sym); | |
2399 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) | |
2400 | (input_bfd, ecoff_sym_ptr->native, esym); | |
2401 | ||
2402 | /* If the symbol was defined by the linker, then esym will be | |
2403 | undefined but sym will not be. Get a better class for such a | |
2404 | symbol. */ | |
2405 | if ((esym->asym.sc == scUndefined | |
2406 | || esym->asym.sc == scSUndefined) | |
2407 | && ! bfd_is_und_section (bfd_get_section (sym))) | |
2408 | esym->asym.sc = scAbs; | |
2409 | ||
2410 | /* Adjust the FDR index for the symbol by that used for the input | |
2411 | BFD. */ | |
2412 | if (esym->ifd != -1) | |
2413 | { | |
2414 | struct ecoff_debug_info *input_debug; | |
2415 | ||
2416 | input_debug = &ecoff_data (input_bfd)->debug_info; | |
2417 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); | |
2418 | if (input_debug->ifdmap != (RFDT *) NULL) | |
2419 | esym->ifd = input_debug->ifdmap[esym->ifd]; | |
2420 | } | |
2421 | ||
2422 | return true; | |
2423 | } | |
2424 | ||
2425 | /* Set the external symbol index. This routine is passed to | |
2426 | bfd_ecoff_debug_externals. */ | |
2427 | ||
2428 | static void | |
2429 | ecoff_set_index (sym, indx) | |
2430 | asymbol *sym; | |
2431 | bfd_size_type indx; | |
2432 | { | |
2433 | ecoff_set_sym_index (sym, indx); | |
2434 | } | |
2435 | ||
2436 | /* Write out an ECOFF file. */ | |
2437 | ||
2438 | boolean | |
2439 | _bfd_ecoff_write_object_contents (abfd) | |
2440 | bfd *abfd; | |
2441 | { | |
2442 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2443 | const bfd_vma round = backend->round; | |
2444 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2445 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2446 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2447 | const bfd_size_type external_hdr_size | |
2448 | = backend->debug_swap.external_hdr_size; | |
2449 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
2450 | void (* const adjust_reloc_out) PARAMS ((bfd *, | |
2451 | const arelent *, | |
2452 | struct internal_reloc *)) | |
2453 | = backend->adjust_reloc_out; | |
2454 | void (* const swap_reloc_out) PARAMS ((bfd *, | |
2455 | const struct internal_reloc *, | |
2456 | PTR)) | |
2457 | = backend->swap_reloc_out; | |
2458 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
2459 | HDRR * const symhdr = &debug->symbolic_header; | |
2460 | asection *current; | |
2461 | unsigned int count; | |
2462 | bfd_size_type reloc_size; | |
2463 | bfd_size_type text_size; | |
2464 | bfd_vma text_start; | |
2465 | boolean set_text_start; | |
2466 | bfd_size_type data_size; | |
2467 | bfd_vma data_start; | |
2468 | boolean set_data_start; | |
2469 | bfd_size_type bss_size; | |
2470 | PTR buff = NULL; | |
2471 | PTR reloc_buff = NULL; | |
2472 | struct internal_filehdr internal_f; | |
2473 | struct internal_aouthdr internal_a; | |
2474 | int i; | |
2475 | ||
2476 | /* Determine where the sections and relocs will go in the output | |
2477 | file. */ | |
2478 | reloc_size = ecoff_compute_reloc_file_positions (abfd); | |
2479 | ||
2480 | count = 1; | |
2481 | for (current = abfd->sections; | |
2482 | current != (asection *)NULL; | |
2483 | current = current->next) | |
2484 | { | |
2485 | current->target_index = count; | |
2486 | ++count; | |
2487 | } | |
2488 | ||
2489 | if ((abfd->flags & D_PAGED) != 0) | |
2490 | text_size = _bfd_ecoff_sizeof_headers (abfd, false); | |
2491 | else | |
2492 | text_size = 0; | |
2493 | text_start = 0; | |
2494 | set_text_start = false; | |
2495 | data_size = 0; | |
2496 | data_start = 0; | |
2497 | set_data_start = false; | |
2498 | bss_size = 0; | |
2499 | ||
2500 | /* Write section headers to the file. */ | |
2501 | ||
2502 | /* Allocate buff big enough to hold a section header, | |
2503 | file header, or a.out header. */ | |
2504 | { | |
2505 | bfd_size_type siz; | |
2506 | siz = scnhsz; | |
2507 | if (siz < filhsz) | |
2508 | siz = filhsz; | |
2509 | if (siz < aoutsz) | |
2510 | siz = aoutsz; | |
2511 | buff = (PTR) bfd_malloc ((size_t) siz); | |
2512 | if (buff == NULL) | |
2513 | goto error_return; | |
2514 | } | |
2515 | ||
2516 | internal_f.f_nscns = 0; | |
2517 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
2518 | goto error_return; | |
2519 | for (current = abfd->sections; | |
2520 | current != (asection *) NULL; | |
2521 | current = current->next) | |
2522 | { | |
2523 | struct internal_scnhdr section; | |
2524 | bfd_vma vma; | |
2525 | ||
2526 | ++internal_f.f_nscns; | |
2527 | ||
2528 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2529 | ||
2530 | /* This seems to be correct for Irix 4 shared libraries. */ | |
2531 | vma = bfd_get_section_vma (abfd, current); | |
2532 | if (strcmp (current->name, _LIB) == 0) | |
2533 | section.s_vaddr = 0; | |
2534 | else | |
2535 | section.s_vaddr = vma; | |
2536 | ||
2537 | section.s_paddr = current->lma; | |
2538 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2539 | ||
2540 | /* If this section is unloadable then the scnptr will be 0. */ | |
2541 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2542 | section.s_scnptr = 0; | |
2543 | else | |
2544 | section.s_scnptr = current->filepos; | |
2545 | section.s_relptr = current->rel_filepos; | |
2546 | ||
2547 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2548 | object file produced by the assembler is supposed to point to | |
2549 | information about how much room is required by objects of | |
2550 | various different sizes. I think this only matters if we | |
2551 | want the linker to compute the best size to use, or | |
2552 | something. I don't know what happens if the information is | |
2553 | not present. */ | |
2554 | if (strcmp (current->name, _PDATA) != 0) | |
2555 | section.s_lnnoptr = 0; | |
2556 | else | |
2557 | { | |
2558 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to | |
2559 | hold the number of entries in the section (each entry is | |
2560 | 8 bytes). We stored this in the line_filepos field in | |
2561 | ecoff_compute_section_file_positions. */ | |
2562 | section.s_lnnoptr = current->line_filepos; | |
2563 | } | |
2564 | ||
2565 | section.s_nreloc = current->reloc_count; | |
2566 | section.s_nlnno = 0; | |
2567 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
2568 | current->flags); | |
2569 | ||
2570 | if (bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff) == 0 | |
2571 | || bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
2572 | goto error_return; | |
2573 | ||
2574 | if ((section.s_flags & STYP_TEXT) != 0 | |
2575 | || ((section.s_flags & STYP_RDATA) != 0 | |
2576 | && ecoff_data (abfd)->rdata_in_text) | |
2577 | || section.s_flags == STYP_PDATA | |
2578 | || (section.s_flags & STYP_DYNAMIC) != 0 | |
2579 | || (section.s_flags & STYP_LIBLIST) != 0 | |
2580 | || (section.s_flags & STYP_RELDYN) != 0 | |
2581 | || section.s_flags == STYP_CONFLIC | |
2582 | || (section.s_flags & STYP_DYNSTR) != 0 | |
2583 | || (section.s_flags & STYP_DYNSYM) != 0 | |
2584 | || (section.s_flags & STYP_HASH) != 0 | |
2585 | || (section.s_flags & STYP_ECOFF_INIT) != 0 | |
2586 | || (section.s_flags & STYP_ECOFF_FINI) != 0 | |
2587 | || section.s_flags == STYP_RCONST) | |
2588 | { | |
2589 | text_size += bfd_get_section_size_before_reloc (current); | |
2590 | if (! set_text_start || text_start > vma) | |
2591 | { | |
2592 | text_start = vma; | |
2593 | set_text_start = true; | |
2594 | } | |
2595 | } | |
2596 | else if ((section.s_flags & STYP_RDATA) != 0 | |
2597 | || (section.s_flags & STYP_DATA) != 0 | |
2598 | || (section.s_flags & STYP_LITA) != 0 | |
2599 | || (section.s_flags & STYP_LIT8) != 0 | |
2600 | || (section.s_flags & STYP_LIT4) != 0 | |
2601 | || (section.s_flags & STYP_SDATA) != 0 | |
2602 | || section.s_flags == STYP_XDATA | |
2603 | || (section.s_flags & STYP_GOT) != 0) | |
2604 | { | |
2605 | data_size += bfd_get_section_size_before_reloc (current); | |
2606 | if (! set_data_start || data_start > vma) | |
2607 | { | |
2608 | data_start = vma; | |
2609 | set_data_start = true; | |
2610 | } | |
2611 | } | |
2612 | else if ((section.s_flags & STYP_BSS) != 0 | |
2613 | || (section.s_flags & STYP_SBSS) != 0) | |
2614 | bss_size += bfd_get_section_size_before_reloc (current); | |
2615 | else if (section.s_flags == 0 | |
2616 | || (section.s_flags & STYP_ECOFF_LIB) != 0 | |
2617 | || section.s_flags == STYP_COMMENT) | |
2618 | /* Do nothing */ ; | |
2619 | else | |
2620 | abort (); | |
2621 | } | |
2622 | ||
2623 | /* Set up the file header. */ | |
2624 | ||
2625 | internal_f.f_magic = ecoff_get_magic (abfd); | |
2626 | ||
2627 | /* We will NOT put a fucking timestamp in the header here. Every | |
2628 | time you put it back, I will come in and take it out again. I'm | |
2629 | sorry. This field does not belong here. We fill it with a 0 so | |
2630 | it compares the same but is not a reasonable time. -- | |
2631 | gnu@cygnus.com. */ | |
2632 | internal_f.f_timdat = 0; | |
2633 | ||
2634 | if (bfd_get_symcount (abfd) != 0) | |
2635 | { | |
2636 | /* The ECOFF f_nsyms field is not actually the number of | |
2637 | symbols, it's the size of symbolic information header. */ | |
2638 | internal_f.f_nsyms = external_hdr_size; | |
2639 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; | |
2640 | } | |
2641 | else | |
2642 | { | |
2643 | internal_f.f_nsyms = 0; | |
2644 | internal_f.f_symptr = 0; | |
2645 | } | |
2646 | ||
2647 | internal_f.f_opthdr = aoutsz; | |
2648 | ||
2649 | internal_f.f_flags = F_LNNO; | |
2650 | if (reloc_size == 0) | |
2651 | internal_f.f_flags |= F_RELFLG; | |
2652 | if (bfd_get_symcount (abfd) == 0) | |
2653 | internal_f.f_flags |= F_LSYMS; | |
2654 | if (abfd->flags & EXEC_P) | |
2655 | internal_f.f_flags |= F_EXEC; | |
2656 | ||
2657 | if (bfd_little_endian (abfd)) | |
2658 | internal_f.f_flags |= F_AR32WR; | |
2659 | else | |
2660 | internal_f.f_flags |= F_AR32W; | |
2661 | ||
2662 | /* Set up the ``optional'' header. */ | |
2663 | if ((abfd->flags & D_PAGED) != 0) | |
2664 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
2665 | else | |
2666 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
2667 | ||
2668 | /* FIXME: Is this really correct? */ | |
2669 | internal_a.vstamp = symhdr->vstamp; | |
2670 | ||
2671 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
2672 | FIXME: Is this true on other platforms? */ | |
2673 | if ((abfd->flags & D_PAGED) != 0) | |
2674 | { | |
2675 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
2676 | internal_a.text_start = text_start &~ (round - 1); | |
2677 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
2678 | internal_a.data_start = data_start &~ (round - 1); | |
2679 | } | |
2680 | else | |
2681 | { | |
2682 | internal_a.tsize = text_size; | |
2683 | internal_a.text_start = text_start; | |
2684 | internal_a.dsize = data_size; | |
2685 | internal_a.data_start = data_start; | |
2686 | } | |
2687 | ||
2688 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
2689 | are at the end of the data section. The bsize field in the | |
2690 | optional header records how many bss bytes are required beyond | |
2691 | those in the data section. The value is not rounded to a page | |
2692 | boundary. */ | |
2693 | if (bss_size < internal_a.dsize - data_size) | |
2694 | bss_size = 0; | |
2695 | else | |
2696 | bss_size -= internal_a.dsize - data_size; | |
2697 | internal_a.bsize = bss_size; | |
2698 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
2699 | ||
2700 | internal_a.entry = bfd_get_start_address (abfd); | |
2701 | ||
2702 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
2703 | ||
2704 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
2705 | internal_a.fprmask = ecoff_data (abfd)->fprmask; | |
2706 | for (i = 0; i < 4; i++) | |
2707 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
2708 | ||
2709 | /* Let the backend adjust the headers if necessary. */ | |
2710 | if (backend->adjust_headers) | |
2711 | { | |
2712 | if (! (*backend->adjust_headers) (abfd, &internal_f, &internal_a)) | |
2713 | goto error_return; | |
2714 | } | |
2715 | ||
2716 | /* Write out the file header and the optional header. */ | |
2717 | ||
2718 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
2719 | goto error_return; | |
2720 | ||
2721 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); | |
2722 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
2723 | goto error_return; | |
2724 | ||
2725 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); | |
2726 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
2727 | goto error_return; | |
2728 | ||
2729 | /* Build the external symbol information. This must be done before | |
2730 | writing out the relocs so that we know the symbol indices. We | |
2731 | don't do this if this BFD was created by the backend linker, | |
2732 | since it will have already handled the symbols and relocs. */ | |
2733 | if (! ecoff_data (abfd)->linker) | |
2734 | { | |
2735 | symhdr->iextMax = 0; | |
2736 | symhdr->issExtMax = 0; | |
2737 | debug->external_ext = debug->external_ext_end = NULL; | |
2738 | debug->ssext = debug->ssext_end = NULL; | |
2739 | if (bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, | |
2740 | (((abfd->flags & EXEC_P) == 0) | |
2741 | ? true : false), | |
2742 | ecoff_get_extr, ecoff_set_index) | |
2743 | == false) | |
2744 | goto error_return; | |
2745 | ||
2746 | /* Write out the relocs. */ | |
2747 | for (current = abfd->sections; | |
2748 | current != (asection *) NULL; | |
2749 | current = current->next) | |
2750 | { | |
2751 | arelent **reloc_ptr_ptr; | |
2752 | arelent **reloc_end; | |
2753 | char *out_ptr; | |
2754 | ||
2755 | if (current->reloc_count == 0) | |
2756 | continue; | |
2757 | ||
2758 | reloc_buff = | |
2759 | bfd_alloc (abfd, current->reloc_count * external_reloc_size); | |
2760 | if (reloc_buff == NULL) | |
2761 | goto error_return; | |
2762 | ||
2763 | reloc_ptr_ptr = current->orelocation; | |
2764 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
2765 | out_ptr = (char *) reloc_buff; | |
2766 | for (; | |
2767 | reloc_ptr_ptr < reloc_end; | |
2768 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
2769 | { | |
2770 | arelent *reloc; | |
2771 | asymbol *sym; | |
2772 | struct internal_reloc in; | |
2773 | ||
2774 | memset ((PTR) &in, 0, sizeof in); | |
2775 | ||
2776 | reloc = *reloc_ptr_ptr; | |
2777 | sym = *reloc->sym_ptr_ptr; | |
2778 | ||
2779 | in.r_vaddr = (reloc->address | |
2780 | + bfd_get_section_vma (abfd, current)); | |
2781 | in.r_type = reloc->howto->type; | |
2782 | ||
2783 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
2784 | { | |
2785 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
2786 | in.r_extern = 1; | |
2787 | } | |
2788 | else | |
2789 | { | |
2790 | CONST char *name; | |
2791 | ||
2792 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
2793 | if (strcmp (name, ".text") == 0) | |
2794 | in.r_symndx = RELOC_SECTION_TEXT; | |
2795 | else if (strcmp (name, ".rdata") == 0) | |
2796 | in.r_symndx = RELOC_SECTION_RDATA; | |
2797 | else if (strcmp (name, ".data") == 0) | |
2798 | in.r_symndx = RELOC_SECTION_DATA; | |
2799 | else if (strcmp (name, ".sdata") == 0) | |
2800 | in.r_symndx = RELOC_SECTION_SDATA; | |
2801 | else if (strcmp (name, ".sbss") == 0) | |
2802 | in.r_symndx = RELOC_SECTION_SBSS; | |
2803 | else if (strcmp (name, ".bss") == 0) | |
2804 | in.r_symndx = RELOC_SECTION_BSS; | |
2805 | else if (strcmp (name, ".init") == 0) | |
2806 | in.r_symndx = RELOC_SECTION_INIT; | |
2807 | else if (strcmp (name, ".lit8") == 0) | |
2808 | in.r_symndx = RELOC_SECTION_LIT8; | |
2809 | else if (strcmp (name, ".lit4") == 0) | |
2810 | in.r_symndx = RELOC_SECTION_LIT4; | |
2811 | else if (strcmp (name, ".xdata") == 0) | |
2812 | in.r_symndx = RELOC_SECTION_XDATA; | |
2813 | else if (strcmp (name, ".pdata") == 0) | |
2814 | in.r_symndx = RELOC_SECTION_PDATA; | |
2815 | else if (strcmp (name, ".fini") == 0) | |
2816 | in.r_symndx = RELOC_SECTION_FINI; | |
2817 | else if (strcmp (name, ".lita") == 0) | |
2818 | in.r_symndx = RELOC_SECTION_LITA; | |
2819 | else if (strcmp (name, "*ABS*") == 0) | |
2820 | in.r_symndx = RELOC_SECTION_ABS; | |
2821 | else if (strcmp (name, ".rconst") == 0) | |
2822 | in.r_symndx = RELOC_SECTION_RCONST; | |
2823 | else | |
2824 | abort (); | |
2825 | in.r_extern = 0; | |
2826 | } | |
2827 | ||
2828 | (*adjust_reloc_out) (abfd, reloc, &in); | |
2829 | ||
2830 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
2831 | } | |
2832 | ||
2833 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
2834 | goto error_return; | |
2835 | if (bfd_write (reloc_buff, | |
2836 | external_reloc_size, current->reloc_count, abfd) | |
2837 | != external_reloc_size * current->reloc_count) | |
2838 | goto error_return; | |
2839 | bfd_release (abfd, reloc_buff); | |
2840 | reloc_buff = NULL; | |
2841 | } | |
2842 | ||
2843 | /* Write out the symbolic debugging information. */ | |
2844 | if (bfd_get_symcount (abfd) > 0) | |
2845 | { | |
2846 | /* Write out the debugging information. */ | |
2847 | if (bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, | |
2848 | ecoff_data (abfd)->sym_filepos) | |
2849 | == false) | |
2850 | goto error_return; | |
2851 | } | |
2852 | } | |
2853 | ||
2854 | /* The .bss section of a demand paged executable must receive an | |
2855 | entire page. If there are symbols, the symbols will start on the | |
2856 | next page. If there are no symbols, we must fill out the page by | |
2857 | hand. */ | |
2858 | if (bfd_get_symcount (abfd) == 0 | |
2859 | && (abfd->flags & EXEC_P) != 0 | |
2860 | && (abfd->flags & D_PAGED) != 0) | |
2861 | { | |
2862 | char c; | |
2863 | ||
2864 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2865 | SEEK_SET) != 0) | |
2866 | goto error_return; | |
2867 | if (bfd_read (&c, 1, 1, abfd) == 0) | |
2868 | c = 0; | |
2869 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2870 | SEEK_SET) != 0) | |
2871 | goto error_return; | |
2872 | if (bfd_write (&c, 1, 1, abfd) != 1) | |
2873 | goto error_return; | |
2874 | } | |
2875 | ||
2876 | if (reloc_buff != NULL) | |
2877 | bfd_release (abfd, reloc_buff); | |
2878 | if (buff != NULL) | |
2879 | free (buff); | |
2880 | return true; | |
2881 | error_return: | |
2882 | if (reloc_buff != NULL) | |
2883 | bfd_release (abfd, reloc_buff); | |
2884 | if (buff != NULL) | |
2885 | free (buff); | |
2886 | return false; | |
2887 | } | |
2888 | \f | |
2889 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
2890 | archive header (armap). The byte ordering of the armap and the | |
2891 | contents are encoded in the name of the armap itself. At least for | |
2892 | now, we only support archives with the same byte ordering in the | |
2893 | armap and the contents. | |
2894 | ||
2895 | The first four bytes in the armap are the number of symbol | |
2896 | definitions. This is always a power of two. | |
2897 | ||
2898 | This is followed by the symbol definitions. Each symbol definition | |
2899 | occupies 8 bytes. The first four bytes are the offset from the | |
2900 | start of the armap strings to the null-terminated string naming | |
2901 | this symbol. The second four bytes are the file offset to the | |
2902 | archive member which defines this symbol. If the second four bytes | |
2903 | are 0, then this is not actually a symbol definition, and it should | |
2904 | be ignored. | |
2905 | ||
2906 | The symbols are hashed into the armap with a closed hashing scheme. | |
2907 | See the functions below for the details of the algorithm. | |
2908 | ||
2909 | After the symbol definitions comes four bytes holding the size of | |
2910 | the string table, followed by the string table itself. */ | |
2911 | ||
2912 | /* The name of an archive headers looks like this: | |
2913 | __________E[BL]E[BL]_ (with a trailing space). | |
2914 | The trailing space is changed to an X if the archive is changed to | |
2915 | indicate that the armap is out of date. | |
2916 | ||
2917 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
2918 | ||
2919 | #define ARMAP_BIG_ENDIAN 'B' | |
2920 | #define ARMAP_LITTLE_ENDIAN 'L' | |
2921 | #define ARMAP_MARKER 'E' | |
2922 | #define ARMAP_START_LENGTH 10 | |
2923 | #define ARMAP_HEADER_MARKER_INDEX 10 | |
2924 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
2925 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
2926 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
2927 | #define ARMAP_END_INDEX 14 | |
2928 | #define ARMAP_END "_ " | |
2929 | ||
2930 | /* This is a magic number used in the hashing algorithm. */ | |
2931 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
2932 | ||
2933 | /* This returns the hash value to use for a string. It also sets | |
2934 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
2935 | is the number of entries in the hash table, and HLOG is the log | |
2936 | base 2 of SIZE. */ | |
2937 | ||
2938 | static unsigned int | |
2939 | ecoff_armap_hash (s, rehash, size, hlog) | |
2940 | CONST char *s; | |
2941 | unsigned int *rehash; | |
2942 | unsigned int size; | |
2943 | unsigned int hlog; | |
2944 | { | |
2945 | unsigned int hash; | |
2946 | ||
2947 | if (hlog == 0) | |
2948 | return 0; | |
2949 | hash = *s++; | |
2950 | while (*s != '\0') | |
2951 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
2952 | hash *= ARMAP_HASH_MAGIC; | |
2953 | *rehash = (hash & (size - 1)) | 1; | |
2954 | return hash >> (32 - hlog); | |
2955 | } | |
2956 | ||
2957 | /* Read in the armap. */ | |
2958 | ||
2959 | boolean | |
2960 | _bfd_ecoff_slurp_armap (abfd) | |
2961 | bfd *abfd; | |
2962 | { | |
2963 | char nextname[17]; | |
2964 | unsigned int i; | |
2965 | struct areltdata *mapdata; | |
2966 | bfd_size_type parsed_size; | |
2967 | char *raw_armap; | |
2968 | struct artdata *ardata; | |
2969 | unsigned int count; | |
2970 | char *raw_ptr; | |
2971 | struct symdef *symdef_ptr; | |
2972 | char *stringbase; | |
2973 | ||
2974 | /* Get the name of the first element. */ | |
2975 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
2976 | if (i == 0) | |
2977 | return true; | |
2978 | if (i != 16) | |
2979 | return false; | |
2980 | ||
2981 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) | |
2982 | return false; | |
2983 | ||
2984 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a | |
2985 | standard COFF armap. We could move the ECOFF armap stuff into | |
2986 | bfd_slurp_armap, but that seems inappropriate since no other | |
2987 | target uses this format. Instead, we check directly for a COFF | |
2988 | armap. */ | |
2989 | if (strncmp (nextname, "/ ", 16) == 0) | |
2990 | return bfd_slurp_armap (abfd); | |
2991 | ||
2992 | /* See if the first element is an armap. */ | |
2993 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, | |
2994 | ARMAP_START_LENGTH) != 0 | |
2995 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER | |
2996 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
2997 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
2998 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
2999 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3000 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3001 | || strncmp (nextname + ARMAP_END_INDEX, | |
3002 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3003 | { | |
3004 | bfd_has_map (abfd) = false; | |
3005 | return true; | |
3006 | } | |
3007 | ||
3008 | /* Make sure we have the right byte ordering. */ | |
3009 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3010 | ^ (bfd_header_big_endian (abfd))) | |
3011 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3012 | ^ (bfd_big_endian (abfd)))) | |
3013 | { | |
3014 | bfd_set_error (bfd_error_wrong_format); | |
3015 | return false; | |
3016 | } | |
3017 | ||
3018 | /* Read in the armap. */ | |
3019 | ardata = bfd_ardata (abfd); | |
3020 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); | |
3021 | if (mapdata == (struct areltdata *) NULL) | |
3022 | return false; | |
3023 | parsed_size = mapdata->parsed_size; | |
3024 | bfd_release (abfd, (PTR) mapdata); | |
3025 | ||
3026 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3027 | if (raw_armap == (char *) NULL) | |
3028 | return false; | |
3029 | ||
3030 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3031 | { | |
3032 | if (bfd_get_error () != bfd_error_system_call) | |
3033 | bfd_set_error (bfd_error_malformed_archive); | |
3034 | bfd_release (abfd, (PTR) raw_armap); | |
3035 | return false; | |
3036 | } | |
3037 | ||
3038 | ardata->tdata = (PTR) raw_armap; | |
3039 | ||
3040 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); | |
3041 | ||
3042 | ardata->symdef_count = 0; | |
3043 | ardata->cache = (struct ar_cache *) NULL; | |
3044 | ||
3045 | /* This code used to overlay the symdefs over the raw archive data, | |
3046 | but that doesn't work on a 64 bit host. */ | |
3047 | ||
3048 | stringbase = raw_armap + count * 8 + 8; | |
3049 | ||
3050 | #ifdef CHECK_ARMAP_HASH | |
3051 | { | |
3052 | unsigned int hlog; | |
3053 | ||
3054 | /* Double check that I have the hashing algorithm right by making | |
3055 | sure that every symbol can be looked up successfully. */ | |
3056 | hlog = 0; | |
3057 | for (i = 1; i < count; i <<= 1) | |
3058 | hlog++; | |
3059 | BFD_ASSERT (i == count); | |
3060 | ||
3061 | raw_ptr = raw_armap + 4; | |
3062 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3063 | { | |
3064 | unsigned int name_offset, file_offset; | |
3065 | unsigned int hash, rehash, srch; | |
3066 | ||
3067 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3068 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); | |
3069 | if (file_offset == 0) | |
3070 | continue; | |
3071 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3072 | hlog); | |
3073 | if (hash == i) | |
3074 | continue; | |
3075 | ||
3076 | /* See if we can rehash to this location. */ | |
3077 | for (srch = (hash + rehash) & (count - 1); | |
3078 | srch != hash && srch != i; | |
3079 | srch = (srch + rehash) & (count - 1)) | |
3080 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) | |
3081 | != 0); | |
3082 | BFD_ASSERT (srch == i); | |
3083 | } | |
3084 | } | |
3085 | ||
3086 | #endif /* CHECK_ARMAP_HASH */ | |
3087 | ||
3088 | raw_ptr = raw_armap + 4; | |
3089 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3090 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
3091 | ++ardata->symdef_count; | |
3092 | ||
3093 | symdef_ptr = ((struct symdef *) | |
3094 | bfd_alloc (abfd, | |
3095 | ardata->symdef_count * sizeof (struct symdef))); | |
3096 | if (!symdef_ptr) | |
3097 | return false; | |
3098 | ||
3099 | ardata->symdefs = (carsym *) symdef_ptr; | |
3100 | ||
3101 | raw_ptr = raw_armap + 4; | |
3102 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3103 | { | |
3104 | unsigned int name_offset, file_offset; | |
3105 | ||
3106 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); | |
3107 | if (file_offset == 0) | |
3108 | continue; | |
3109 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3110 | symdef_ptr->s.name = stringbase + name_offset; | |
3111 | symdef_ptr->file_offset = file_offset; | |
3112 | ++symdef_ptr; | |
3113 | } | |
3114 | ||
3115 | ardata->first_file_filepos = bfd_tell (abfd); | |
3116 | /* Pad to an even boundary. */ | |
3117 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3118 | ||
3119 | bfd_has_map (abfd) = true; | |
3120 | ||
3121 | return true; | |
3122 | } | |
3123 | ||
3124 | /* Write out an armap. */ | |
3125 | ||
3126 | boolean | |
3127 | _bfd_ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3128 | bfd *abfd; | |
3129 | unsigned int elength; | |
3130 | struct orl *map; | |
3131 | unsigned int orl_count; | |
3132 | int stridx; | |
3133 | { | |
3134 | unsigned int hashsize, hashlog; | |
3135 | unsigned int symdefsize; | |
3136 | int padit; | |
3137 | unsigned int stringsize; | |
3138 | unsigned int mapsize; | |
3139 | file_ptr firstreal; | |
3140 | struct ar_hdr hdr; | |
3141 | struct stat statbuf; | |
3142 | unsigned int i; | |
3143 | bfd_byte temp[4]; | |
3144 | bfd_byte *hashtable; | |
3145 | bfd *current; | |
3146 | bfd *last_elt; | |
3147 | ||
3148 | /* Ultrix appears to use as a hash table size the least power of two | |
3149 | greater than twice the number of entries. */ | |
3150 | for (hashlog = 0; ((unsigned int) 1 << hashlog) <= 2 * orl_count; hashlog++) | |
3151 | ; | |
3152 | hashsize = 1 << hashlog; | |
3153 | ||
3154 | symdefsize = hashsize * 8; | |
3155 | padit = stridx % 2; | |
3156 | stringsize = stridx + padit; | |
3157 | ||
3158 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
3159 | mapsize = symdefsize + stringsize + 8; | |
3160 | ||
3161 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3162 | ||
3163 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3164 | ||
3165 | /* Work out the ECOFF armap name. */ | |
3166 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); | |
3167 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; | |
3168 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3169 | (bfd_header_big_endian (abfd) | |
3170 | ? ARMAP_BIG_ENDIAN | |
3171 | : ARMAP_LITTLE_ENDIAN); | |
3172 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3173 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3174 | bfd_big_endian (abfd) ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3175 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3176 | ||
3177 | /* Write the timestamp of the archive header to be just a little bit | |
3178 | later than the timestamp of the file, otherwise the linker will | |
3179 | complain that the index is out of date. Actually, the Ultrix | |
3180 | linker just checks the archive name; the GNU linker may check the | |
3181 | date. */ | |
3182 | stat (abfd->filename, &statbuf); | |
3183 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3184 | ||
3185 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3186 | armap. */ | |
3187 | hdr.ar_uid[0] = '0'; | |
3188 | hdr.ar_gid[0] = '0'; | |
ec0ef80e | 3189 | #if 0 |
252b5132 | 3190 | hdr.ar_mode[0] = '0'; |
ec0ef80e DD |
3191 | #else |
3192 | /* Building gcc ends up extracting the armap as a file - twice. */ | |
3193 | hdr.ar_mode[0] = '6'; | |
3194 | hdr.ar_mode[1] = '4'; | |
3195 | hdr.ar_mode[2] = '4'; | |
3196 | #endif | |
252b5132 RH |
3197 | |
3198 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3199 | ||
3200 | hdr.ar_fmag[0] = '`'; | |
3201 | hdr.ar_fmag[1] = '\012'; | |
3202 | ||
3203 | /* Turn all null bytes in the header into spaces. */ | |
3204 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3205 | if (((char *)(&hdr))[i] == '\0') | |
3206 | (((char *)(&hdr))[i]) = ' '; | |
3207 | ||
3208 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3209 | != sizeof (struct ar_hdr)) | |
3210 | return false; | |
3211 | ||
3212 | bfd_h_put_32 (abfd, (bfd_vma) hashsize, temp); | |
3213 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) | |
3214 | return false; | |
3215 | ||
3216 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
3217 | if (!hashtable) | |
3218 | return false; | |
3219 | ||
3220 | current = abfd->archive_head; | |
3221 | last_elt = current; | |
3222 | for (i = 0; i < orl_count; i++) | |
3223 | { | |
3224 | unsigned int hash, rehash; | |
3225 | ||
3226 | /* Advance firstreal to the file position of this archive | |
3227 | element. */ | |
3228 | if (((bfd *) map[i].pos) != last_elt) | |
3229 | { | |
3230 | do | |
3231 | { | |
3232 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3233 | firstreal += firstreal % 2; | |
3234 | current = current->next; | |
3235 | } | |
3236 | while (current != (bfd *) map[i].pos); | |
3237 | } | |
3238 | ||
3239 | last_elt = current; | |
3240 | ||
3241 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
3242 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) | |
3243 | { | |
3244 | unsigned int srch; | |
3245 | ||
3246 | /* The desired slot is already taken. */ | |
3247 | for (srch = (hash + rehash) & (hashsize - 1); | |
3248 | srch != hash; | |
3249 | srch = (srch + rehash) & (hashsize - 1)) | |
3250 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) | |
3251 | break; | |
3252 | ||
3253 | BFD_ASSERT (srch != hash); | |
3254 | ||
3255 | hash = srch; | |
3256 | } | |
3257 | ||
3258 | bfd_h_put_32 (abfd, (bfd_vma) map[i].namidx, | |
3259 | (PTR) (hashtable + hash * 8)); | |
3260 | bfd_h_put_32 (abfd, (bfd_vma) firstreal, | |
3261 | (PTR) (hashtable + hash * 8 + 4)); | |
3262 | } | |
3263 | ||
3264 | if (bfd_write ((PTR) hashtable, 1, symdefsize, abfd) != symdefsize) | |
3265 | return false; | |
3266 | ||
3267 | bfd_release (abfd, hashtable); | |
3268 | ||
3269 | /* Now write the strings. */ | |
3270 | bfd_h_put_32 (abfd, (bfd_vma) stringsize, temp); | |
3271 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) | |
3272 | return false; | |
3273 | for (i = 0; i < orl_count; i++) | |
3274 | { | |
3275 | bfd_size_type len; | |
3276 | ||
3277 | len = strlen (*map[i].name) + 1; | |
3278 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3279 | return false; | |
3280 | } | |
3281 | ||
3282 | /* The spec sez this should be a newline. But in order to be | |
3283 | bug-compatible for DECstation ar we use a null. */ | |
3284 | if (padit) | |
3285 | { | |
3286 | if (bfd_write ("", 1, 1, abfd) != 1) | |
3287 | return false; | |
3288 | } | |
3289 | ||
3290 | return true; | |
3291 | } | |
3292 | ||
3293 | /* See whether this BFD is an archive. If it is, read in the armap | |
3294 | and the extended name table. */ | |
3295 | ||
3296 | const bfd_target * | |
3297 | _bfd_ecoff_archive_p (abfd) | |
3298 | bfd *abfd; | |
3299 | { | |
3300 | struct artdata *tdata_hold; | |
3301 | char armag[SARMAG + 1]; | |
3302 | ||
3303 | tdata_hold = abfd->tdata.aout_ar_data; | |
3304 | ||
3305 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG) | |
3306 | { | |
3307 | if (bfd_get_error () != bfd_error_system_call) | |
3308 | bfd_set_error (bfd_error_wrong_format); | |
3309 | return (const bfd_target *) NULL; | |
3310 | } | |
3311 | ||
3312 | if (strncmp (armag, ARMAG, SARMAG) != 0) | |
3313 | { | |
3314 | bfd_set_error (bfd_error_wrong_format); | |
3315 | return NULL; | |
3316 | } | |
3317 | ||
3318 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3319 | involves a cast, we can't do it as the left operand of | |
3320 | assignment. */ | |
3321 | abfd->tdata.aout_ar_data = | |
3322 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3323 | ||
3324 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3325 | { | |
3326 | abfd->tdata.aout_ar_data = tdata_hold; | |
3327 | return (const bfd_target *) NULL; | |
3328 | } | |
3329 | ||
3330 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3331 | bfd_ardata (abfd)->cache = NULL; | |
3332 | bfd_ardata (abfd)->archive_head = NULL; | |
3333 | bfd_ardata (abfd)->symdefs = NULL; | |
3334 | bfd_ardata (abfd)->extended_names = NULL; | |
3335 | bfd_ardata (abfd)->tdata = NULL; | |
3336 | ||
3337 | if (_bfd_ecoff_slurp_armap (abfd) == false | |
3338 | || _bfd_ecoff_slurp_extended_name_table (abfd) == false) | |
3339 | { | |
3340 | bfd_release (abfd, bfd_ardata (abfd)); | |
3341 | abfd->tdata.aout_ar_data = tdata_hold; | |
3342 | return (const bfd_target *) NULL; | |
3343 | } | |
3344 | ||
3345 | if (bfd_has_map (abfd)) | |
3346 | { | |
3347 | bfd *first; | |
3348 | ||
3349 | /* This archive has a map, so we may presume that the contents | |
3350 | are object files. Make sure that if the first file in the | |
3351 | archive can be recognized as an object file, it is for this | |
3352 | target. If not, assume that this is the wrong format. If | |
3353 | the first file is not an object file, somebody is doing | |
3354 | something weird, and we permit it so that ar -t will work. */ | |
3355 | ||
3356 | first = bfd_openr_next_archived_file (abfd, (bfd *) NULL); | |
3357 | if (first != NULL) | |
3358 | { | |
3359 | boolean fail; | |
3360 | ||
3361 | first->target_defaulted = false; | |
3362 | fail = false; | |
3363 | if (bfd_check_format (first, bfd_object) | |
3364 | && first->xvec != abfd->xvec) | |
3365 | { | |
3366 | (void) bfd_close (first); | |
3367 | bfd_release (abfd, bfd_ardata (abfd)); | |
3368 | abfd->tdata.aout_ar_data = tdata_hold; | |
3369 | bfd_set_error (bfd_error_wrong_format); | |
3370 | return NULL; | |
3371 | } | |
3372 | ||
3373 | /* We ought to close first here, but we can't, because we | |
3374 | have no way to remove it from the archive cache. FIXME. */ | |
3375 | } | |
3376 | } | |
3377 | ||
3378 | return abfd->xvec; | |
3379 | } | |
3380 | \f | |
3381 | /* ECOFF linker code. */ | |
3382 | ||
3383 | static struct bfd_hash_entry *ecoff_link_hash_newfunc | |
3384 | PARAMS ((struct bfd_hash_entry *entry, | |
3385 | struct bfd_hash_table *table, | |
3386 | const char *string)); | |
3387 | static boolean ecoff_link_add_archive_symbols | |
3388 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3389 | static boolean ecoff_link_check_archive_element | |
3390 | PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded)); | |
3391 | static boolean ecoff_link_add_object_symbols | |
3392 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3393 | static boolean ecoff_link_add_externals | |
3394 | PARAMS ((bfd *, struct bfd_link_info *, PTR, char *)); | |
3395 | ||
3396 | /* Routine to create an entry in an ECOFF link hash table. */ | |
3397 | ||
3398 | static struct bfd_hash_entry * | |
3399 | ecoff_link_hash_newfunc (entry, table, string) | |
3400 | struct bfd_hash_entry *entry; | |
3401 | struct bfd_hash_table *table; | |
3402 | const char *string; | |
3403 | { | |
3404 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; | |
3405 | ||
3406 | /* Allocate the structure if it has not already been allocated by a | |
3407 | subclass. */ | |
3408 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3409 | ret = ((struct ecoff_link_hash_entry *) | |
3410 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); | |
3411 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3412 | return NULL; | |
3413 | ||
3414 | /* Call the allocation method of the superclass. */ | |
3415 | ret = ((struct ecoff_link_hash_entry *) | |
3416 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3417 | table, string)); | |
3418 | ||
3419 | if (ret) | |
3420 | { | |
3421 | /* Set local fields. */ | |
3422 | ret->indx = -1; | |
3423 | ret->abfd = NULL; | |
3424 | ret->written = 0; | |
3425 | ret->small = 0; | |
3426 | } | |
3427 | memset ((PTR) &ret->esym, 0, sizeof ret->esym); | |
3428 | ||
3429 | return (struct bfd_hash_entry *) ret; | |
3430 | } | |
3431 | ||
3432 | /* Create an ECOFF link hash table. */ | |
3433 | ||
3434 | struct bfd_link_hash_table * | |
3435 | _bfd_ecoff_bfd_link_hash_table_create (abfd) | |
3436 | bfd *abfd; | |
3437 | { | |
3438 | struct ecoff_link_hash_table *ret; | |
3439 | ||
3440 | ret = ((struct ecoff_link_hash_table *) | |
3441 | bfd_alloc (abfd, sizeof (struct ecoff_link_hash_table))); | |
3442 | if (ret == NULL) | |
3443 | return NULL; | |
3444 | if (! _bfd_link_hash_table_init (&ret->root, abfd, | |
3445 | ecoff_link_hash_newfunc)) | |
3446 | { | |
3447 | free (ret); | |
3448 | return (struct bfd_link_hash_table *) NULL; | |
3449 | } | |
3450 | return &ret->root; | |
3451 | } | |
3452 | ||
3453 | /* Look up an entry in an ECOFF link hash table. */ | |
3454 | ||
3455 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ | |
3456 | ((struct ecoff_link_hash_entry *) \ | |
3457 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) | |
3458 | ||
3459 | /* Traverse an ECOFF link hash table. */ | |
3460 | ||
3461 | #define ecoff_link_hash_traverse(table, func, info) \ | |
3462 | (bfd_link_hash_traverse \ | |
3463 | (&(table)->root, \ | |
3464 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ | |
3465 | (info))) | |
3466 | ||
3467 | /* Get the ECOFF link hash table from the info structure. This is | |
3468 | just a cast. */ | |
3469 | ||
3470 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) | |
3471 | ||
3472 | /* Given an ECOFF BFD, add symbols to the global hash table as | |
3473 | appropriate. */ | |
3474 | ||
3475 | boolean | |
3476 | _bfd_ecoff_bfd_link_add_symbols (abfd, info) | |
3477 | bfd *abfd; | |
3478 | struct bfd_link_info *info; | |
3479 | { | |
3480 | switch (bfd_get_format (abfd)) | |
3481 | { | |
3482 | case bfd_object: | |
3483 | return ecoff_link_add_object_symbols (abfd, info); | |
3484 | case bfd_archive: | |
3485 | return ecoff_link_add_archive_symbols (abfd, info); | |
3486 | default: | |
3487 | bfd_set_error (bfd_error_wrong_format); | |
3488 | return false; | |
3489 | } | |
3490 | } | |
3491 | ||
3492 | /* Add the symbols from an archive file to the global hash table. | |
3493 | This looks through the undefined symbols, looks each one up in the | |
3494 | archive hash table, and adds any associated object file. We do not | |
3495 | use _bfd_generic_link_add_archive_symbols because ECOFF archives | |
3496 | already have a hash table, so there is no reason to construct | |
3497 | another one. */ | |
3498 | ||
3499 | static boolean | |
3500 | ecoff_link_add_archive_symbols (abfd, info) | |
3501 | bfd *abfd; | |
3502 | struct bfd_link_info *info; | |
3503 | { | |
3504 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3505 | const bfd_byte *raw_armap; | |
3506 | struct bfd_link_hash_entry **pundef; | |
3507 | unsigned int armap_count; | |
3508 | unsigned int armap_log; | |
3509 | unsigned int i; | |
3510 | const bfd_byte *hashtable; | |
3511 | const char *stringbase; | |
3512 | ||
3513 | if (! bfd_has_map (abfd)) | |
3514 | { | |
3515 | /* An empty archive is a special case. */ | |
3516 | if (bfd_openr_next_archived_file (abfd, (bfd *) NULL) == NULL) | |
3517 | return true; | |
3518 | bfd_set_error (bfd_error_no_armap); | |
3519 | return false; | |
3520 | } | |
3521 | ||
3522 | /* If we don't have any raw data for this archive, as can happen on | |
3523 | Irix 4.0.5F, we call the generic routine. | |
3524 | FIXME: We should be more clever about this, since someday tdata | |
3525 | may get to something for a generic archive. */ | |
3526 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; | |
3527 | if (raw_armap == (bfd_byte *) NULL) | |
3528 | return (_bfd_generic_link_add_archive_symbols | |
3529 | (abfd, info, ecoff_link_check_archive_element)); | |
3530 | ||
3531 | armap_count = bfd_h_get_32 (abfd, raw_armap); | |
3532 | ||
3533 | armap_log = 0; | |
3534 | for (i = 1; i < armap_count; i <<= 1) | |
3535 | armap_log++; | |
3536 | BFD_ASSERT (i == armap_count); | |
3537 | ||
3538 | hashtable = raw_armap + 4; | |
3539 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; | |
3540 | ||
3541 | /* Look through the list of undefined symbols. */ | |
3542 | pundef = &info->hash->undefs; | |
3543 | while (*pundef != (struct bfd_link_hash_entry *) NULL) | |
3544 | { | |
3545 | struct bfd_link_hash_entry *h; | |
3546 | unsigned int hash, rehash; | |
3547 | unsigned int file_offset; | |
3548 | const char *name; | |
3549 | bfd *element; | |
3550 | ||
3551 | h = *pundef; | |
3552 | ||
3553 | /* When a symbol is defined, it is not necessarily removed from | |
3554 | the list. */ | |
3555 | if (h->type != bfd_link_hash_undefined | |
3556 | && h->type != bfd_link_hash_common) | |
3557 | { | |
3558 | /* Remove this entry from the list, for general cleanliness | |
3559 | and because we are going to look through the list again | |
3560 | if we search any more libraries. We can't remove the | |
3561 | entry if it is the tail, because that would lose any | |
3562 | entries we add to the list later on. */ | |
3563 | if (*pundef != info->hash->undefs_tail) | |
3564 | *pundef = (*pundef)->next; | |
3565 | else | |
3566 | pundef = &(*pundef)->next; | |
3567 | continue; | |
3568 | } | |
3569 | ||
3570 | /* Native ECOFF linkers do not pull in archive elements merely | |
3571 | to satisfy common definitions, so neither do we. We leave | |
3572 | them on the list, though, in case we are linking against some | |
3573 | other object format. */ | |
3574 | if (h->type != bfd_link_hash_undefined) | |
3575 | { | |
3576 | pundef = &(*pundef)->next; | |
3577 | continue; | |
3578 | } | |
3579 | ||
3580 | /* Look for this symbol in the archive hash table. */ | |
3581 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, | |
3582 | armap_log); | |
3583 | ||
3584 | file_offset = bfd_h_get_32 (abfd, hashtable + (hash * 8) + 4); | |
3585 | if (file_offset == 0) | |
3586 | { | |
3587 | /* Nothing in this slot. */ | |
3588 | pundef = &(*pundef)->next; | |
3589 | continue; | |
3590 | } | |
3591 | ||
3592 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (hash * 8)); | |
3593 | if (name[0] != h->root.string[0] | |
3594 | || strcmp (name, h->root.string) != 0) | |
3595 | { | |
3596 | unsigned int srch; | |
3597 | boolean found; | |
3598 | ||
3599 | /* That was the wrong symbol. Try rehashing. */ | |
3600 | found = false; | |
3601 | for (srch = (hash + rehash) & (armap_count - 1); | |
3602 | srch != hash; | |
3603 | srch = (srch + rehash) & (armap_count - 1)) | |
3604 | { | |
3605 | file_offset = bfd_h_get_32 (abfd, hashtable + (srch * 8) + 4); | |
3606 | if (file_offset == 0) | |
3607 | break; | |
3608 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (srch * 8)); | |
3609 | if (name[0] == h->root.string[0] | |
3610 | && strcmp (name, h->root.string) == 0) | |
3611 | { | |
3612 | found = true; | |
3613 | break; | |
3614 | } | |
3615 | } | |
3616 | ||
3617 | if (! found) | |
3618 | { | |
3619 | pundef = &(*pundef)->next; | |
3620 | continue; | |
3621 | } | |
3622 | ||
3623 | hash = srch; | |
3624 | } | |
3625 | ||
3626 | element = (*backend->get_elt_at_filepos) (abfd, file_offset); | |
3627 | if (element == (bfd *) NULL) | |
3628 | return false; | |
3629 | ||
3630 | if (! bfd_check_format (element, bfd_object)) | |
3631 | return false; | |
3632 | ||
3633 | /* Unlike the generic linker, we know that this element provides | |
3634 | a definition for an undefined symbol and we know that we want | |
3635 | to include it. We don't need to check anything. */ | |
3636 | if (! (*info->callbacks->add_archive_element) (info, element, name)) | |
3637 | return false; | |
3638 | if (! ecoff_link_add_object_symbols (element, info)) | |
3639 | return false; | |
3640 | ||
3641 | pundef = &(*pundef)->next; | |
3642 | } | |
3643 | ||
3644 | return true; | |
3645 | } | |
3646 | ||
3647 | /* This is called if we used _bfd_generic_link_add_archive_symbols | |
3648 | because we were not dealing with an ECOFF archive. */ | |
3649 | ||
3650 | static boolean | |
3651 | ecoff_link_check_archive_element (abfd, info, pneeded) | |
3652 | bfd *abfd; | |
3653 | struct bfd_link_info *info; | |
3654 | boolean *pneeded; | |
3655 | { | |
3656 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3657 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3658 | = backend->debug_swap.swap_ext_in; | |
3659 | HDRR *symhdr; | |
3660 | bfd_size_type external_ext_size; | |
3661 | PTR external_ext = NULL; | |
3662 | size_t esize; | |
3663 | char *ssext = NULL; | |
3664 | char *ext_ptr; | |
3665 | char *ext_end; | |
3666 | ||
3667 | *pneeded = false; | |
3668 | ||
3669 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3670 | goto error_return; | |
3671 | ||
3672 | /* If there are no symbols, we don't want it. */ | |
3673 | if (bfd_get_symcount (abfd) == 0) | |
3674 | goto successful_return; | |
3675 | ||
3676 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3677 | ||
3678 | /* Read in the external symbols and external strings. */ | |
3679 | external_ext_size = backend->debug_swap.external_ext_size; | |
3680 | esize = symhdr->iextMax * external_ext_size; | |
3681 | external_ext = (PTR) bfd_malloc (esize); | |
3682 | if (external_ext == NULL && esize != 0) | |
3683 | goto error_return; | |
3684 | ||
3685 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 | |
3686 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
3687 | goto error_return; | |
3688 | ||
3689 | ssext = (char *) bfd_malloc (symhdr->issExtMax); | |
3690 | if (ssext == NULL && symhdr->issExtMax != 0) | |
3691 | goto error_return; | |
3692 | ||
3693 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 | |
3694 | || (bfd_read (ssext, 1, symhdr->issExtMax, abfd) != | |
3695 | (bfd_size_type) symhdr->issExtMax)) | |
3696 | goto error_return; | |
3697 | ||
3698 | /* Look through the external symbols to see if they define some | |
3699 | symbol that is currently undefined. */ | |
3700 | ext_ptr = (char *) external_ext; | |
3701 | ext_end = ext_ptr + esize; | |
3702 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) | |
3703 | { | |
3704 | EXTR esym; | |
3705 | boolean def; | |
3706 | const char *name; | |
3707 | struct bfd_link_hash_entry *h; | |
3708 | ||
3709 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3710 | ||
3711 | /* See if this symbol defines something. */ | |
3712 | if (esym.asym.st != stGlobal | |
3713 | && esym.asym.st != stLabel | |
3714 | && esym.asym.st != stProc) | |
3715 | continue; | |
3716 | ||
3717 | switch (esym.asym.sc) | |
3718 | { | |
3719 | case scText: | |
3720 | case scData: | |
3721 | case scBss: | |
3722 | case scAbs: | |
3723 | case scSData: | |
3724 | case scSBss: | |
3725 | case scRData: | |
3726 | case scCommon: | |
3727 | case scSCommon: | |
3728 | case scInit: | |
3729 | case scFini: | |
3730 | case scRConst: | |
3731 | def = true; | |
3732 | break; | |
3733 | default: | |
3734 | def = false; | |
3735 | break; | |
3736 | } | |
3737 | ||
3738 | if (! def) | |
3739 | continue; | |
3740 | ||
3741 | name = ssext + esym.asym.iss; | |
3742 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); | |
3743 | ||
3744 | /* Unlike the generic linker, we do not pull in elements because | |
3745 | of common symbols. */ | |
3746 | if (h == (struct bfd_link_hash_entry *) NULL | |
3747 | || h->type != bfd_link_hash_undefined) | |
3748 | continue; | |
3749 | ||
3750 | /* Include this element. */ | |
3751 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
3752 | goto error_return; | |
3753 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) | |
3754 | goto error_return; | |
3755 | ||
3756 | *pneeded = true; | |
3757 | goto successful_return; | |
3758 | } | |
3759 | ||
3760 | successful_return: | |
3761 | if (external_ext != NULL) | |
3762 | free (external_ext); | |
3763 | if (ssext != NULL) | |
3764 | free (ssext); | |
3765 | return true; | |
3766 | error_return: | |
3767 | if (external_ext != NULL) | |
3768 | free (external_ext); | |
3769 | if (ssext != NULL) | |
3770 | free (ssext); | |
3771 | return false; | |
3772 | } | |
3773 | ||
3774 | /* Add symbols from an ECOFF object file to the global linker hash | |
3775 | table. */ | |
3776 | ||
3777 | static boolean | |
3778 | ecoff_link_add_object_symbols (abfd, info) | |
3779 | bfd *abfd; | |
3780 | struct bfd_link_info *info; | |
3781 | { | |
3782 | HDRR *symhdr; | |
3783 | bfd_size_type external_ext_size; | |
3784 | PTR external_ext = NULL; | |
3785 | size_t esize; | |
3786 | char *ssext = NULL; | |
3787 | boolean result; | |
3788 | ||
3789 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3790 | return false; | |
3791 | ||
3792 | /* If there are no symbols, we don't want it. */ | |
3793 | if (bfd_get_symcount (abfd) == 0) | |
3794 | return true; | |
3795 | ||
3796 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3797 | ||
3798 | /* Read in the external symbols and external strings. */ | |
3799 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; | |
3800 | esize = symhdr->iextMax * external_ext_size; | |
3801 | external_ext = (PTR) bfd_malloc (esize); | |
3802 | if (external_ext == NULL && esize != 0) | |
3803 | goto error_return; | |
3804 | ||
3805 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 | |
3806 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
3807 | goto error_return; | |
3808 | ||
3809 | ssext = (char *) bfd_malloc (symhdr->issExtMax); | |
3810 | if (ssext == NULL && symhdr->issExtMax != 0) | |
3811 | goto error_return; | |
3812 | ||
3813 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 | |
3814 | || (bfd_read (ssext, 1, symhdr->issExtMax, abfd) | |
3815 | != (bfd_size_type) symhdr->issExtMax)) | |
3816 | goto error_return; | |
3817 | ||
3818 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); | |
3819 | ||
3820 | if (ssext != NULL) | |
3821 | free (ssext); | |
3822 | if (external_ext != NULL) | |
3823 | free (external_ext); | |
3824 | return result; | |
3825 | ||
3826 | error_return: | |
3827 | if (ssext != NULL) | |
3828 | free (ssext); | |
3829 | if (external_ext != NULL) | |
3830 | free (external_ext); | |
3831 | return false; | |
3832 | } | |
3833 | ||
3834 | /* Add the external symbols of an object file to the global linker | |
3835 | hash table. The external symbols and strings we are passed are | |
3836 | just allocated on the stack, and will be discarded. We must | |
3837 | explicitly save any information we may need later on in the link. | |
3838 | We do not want to read the external symbol information again. */ | |
3839 | ||
3840 | static boolean | |
3841 | ecoff_link_add_externals (abfd, info, external_ext, ssext) | |
3842 | bfd *abfd; | |
3843 | struct bfd_link_info *info; | |
3844 | PTR external_ext; | |
3845 | char *ssext; | |
3846 | { | |
3847 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3848 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3849 | = backend->debug_swap.swap_ext_in; | |
3850 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; | |
3851 | unsigned long ext_count; | |
3852 | struct ecoff_link_hash_entry **sym_hash; | |
3853 | char *ext_ptr; | |
3854 | char *ext_end; | |
3855 | ||
3856 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
3857 | ||
3858 | sym_hash = ((struct ecoff_link_hash_entry **) | |
3859 | bfd_alloc (abfd, | |
3860 | ext_count * sizeof (struct bfd_link_hash_entry *))); | |
3861 | if (!sym_hash) | |
3862 | return false; | |
3863 | ecoff_data (abfd)->sym_hashes = sym_hash; | |
3864 | ||
3865 | ext_ptr = (char *) external_ext; | |
3866 | ext_end = ext_ptr + ext_count * external_ext_size; | |
3867 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) | |
3868 | { | |
3869 | EXTR esym; | |
3870 | boolean skip; | |
3871 | bfd_vma value; | |
3872 | asection *section; | |
3873 | const char *name; | |
3874 | struct ecoff_link_hash_entry *h; | |
3875 | ||
3876 | *sym_hash = NULL; | |
3877 | ||
3878 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3879 | ||
3880 | /* Skip debugging symbols. */ | |
3881 | skip = false; | |
3882 | switch (esym.asym.st) | |
3883 | { | |
3884 | case stGlobal: | |
3885 | case stStatic: | |
3886 | case stLabel: | |
3887 | case stProc: | |
3888 | case stStaticProc: | |
3889 | break; | |
3890 | default: | |
3891 | skip = true; | |
3892 | break; | |
3893 | } | |
3894 | ||
3895 | if (skip) | |
3896 | continue; | |
3897 | ||
3898 | /* Get the information for this symbol. */ | |
3899 | value = esym.asym.value; | |
3900 | switch (esym.asym.sc) | |
3901 | { | |
3902 | default: | |
3903 | case scNil: | |
3904 | case scRegister: | |
3905 | case scCdbLocal: | |
3906 | case scBits: | |
3907 | case scCdbSystem: | |
3908 | case scRegImage: | |
3909 | case scInfo: | |
3910 | case scUserStruct: | |
3911 | case scVar: | |
3912 | case scVarRegister: | |
3913 | case scVariant: | |
3914 | case scBasedVar: | |
3915 | case scXData: | |
3916 | case scPData: | |
3917 | section = NULL; | |
3918 | break; | |
3919 | case scText: | |
3920 | section = bfd_make_section_old_way (abfd, ".text"); | |
3921 | value -= section->vma; | |
3922 | break; | |
3923 | case scData: | |
3924 | section = bfd_make_section_old_way (abfd, ".data"); | |
3925 | value -= section->vma; | |
3926 | break; | |
3927 | case scBss: | |
3928 | section = bfd_make_section_old_way (abfd, ".bss"); | |
3929 | value -= section->vma; | |
3930 | break; | |
3931 | case scAbs: | |
3932 | section = bfd_abs_section_ptr; | |
3933 | break; | |
3934 | case scUndefined: | |
3935 | section = bfd_und_section_ptr; | |
3936 | break; | |
3937 | case scSData: | |
3938 | section = bfd_make_section_old_way (abfd, ".sdata"); | |
3939 | value -= section->vma; | |
3940 | break; | |
3941 | case scSBss: | |
3942 | section = bfd_make_section_old_way (abfd, ".sbss"); | |
3943 | value -= section->vma; | |
3944 | break; | |
3945 | case scRData: | |
3946 | section = bfd_make_section_old_way (abfd, ".rdata"); | |
3947 | value -= section->vma; | |
3948 | break; | |
3949 | case scCommon: | |
3950 | if (value > ecoff_data (abfd)->gp_size) | |
3951 | { | |
3952 | section = bfd_com_section_ptr; | |
3953 | break; | |
3954 | } | |
3955 | /* Fall through. */ | |
3956 | case scSCommon: | |
3957 | if (ecoff_scom_section.name == NULL) | |
3958 | { | |
3959 | /* Initialize the small common section. */ | |
3960 | ecoff_scom_section.name = SCOMMON; | |
3961 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
3962 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
3963 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
3964 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
3965 | ecoff_scom_symbol.name = SCOMMON; | |
3966 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
3967 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
3968 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
3969 | } | |
3970 | section = &ecoff_scom_section; | |
3971 | break; | |
3972 | case scSUndefined: | |
3973 | section = bfd_und_section_ptr; | |
3974 | break; | |
3975 | case scInit: | |
3976 | section = bfd_make_section_old_way (abfd, ".init"); | |
3977 | value -= section->vma; | |
3978 | break; | |
3979 | case scFini: | |
3980 | section = bfd_make_section_old_way (abfd, ".fini"); | |
3981 | value -= section->vma; | |
3982 | break; | |
3983 | case scRConst: | |
3984 | section = bfd_make_section_old_way (abfd, ".rconst"); | |
3985 | value -= section->vma; | |
3986 | break; | |
3987 | } | |
3988 | ||
3989 | if (section == (asection *) NULL) | |
3990 | continue; | |
3991 | ||
3992 | name = ssext + esym.asym.iss; | |
3993 | ||
3994 | h = NULL; | |
3995 | if (! (_bfd_generic_link_add_one_symbol | |
3996 | (info, abfd, name, | |
3997 | esym.weakext ? BSF_WEAK : BSF_GLOBAL, | |
3998 | section, value, (const char *) NULL, true, true, | |
3999 | (struct bfd_link_hash_entry **) &h))) | |
4000 | return false; | |
4001 | ||
4002 | *sym_hash = h; | |
4003 | ||
4004 | /* If we are building an ECOFF hash table, save the external | |
4005 | symbol information. */ | |
4006 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
4007 | { | |
4008 | if (h->abfd == (bfd *) NULL | |
4009 | || (! bfd_is_und_section (section) | |
4010 | && (! bfd_is_com_section (section) | |
4011 | || (h->root.type != bfd_link_hash_defined | |
4012 | && h->root.type != bfd_link_hash_defweak)))) | |
4013 | { | |
4014 | h->abfd = abfd; | |
4015 | h->esym = esym; | |
4016 | } | |
4017 | ||
4018 | /* Remember whether this symbol was small undefined. */ | |
4019 | if (esym.asym.sc == scSUndefined) | |
4020 | h->small = 1; | |
4021 | ||
4022 | /* If this symbol was ever small undefined, it needs to wind | |
4023 | up in a GP relative section. We can't control the | |
4024 | section of a defined symbol, but we can control the | |
4025 | section of a common symbol. This case is actually needed | |
4026 | on Ultrix 4.2 to handle the symbol cred in -lckrb. */ | |
4027 | if (h->small | |
4028 | && h->root.type == bfd_link_hash_common | |
4029 | && strcmp (h->root.u.c.p->section->name, SCOMMON) != 0) | |
4030 | { | |
4031 | h->root.u.c.p->section = bfd_make_section_old_way (abfd, | |
4032 | SCOMMON); | |
4033 | h->root.u.c.p->section->flags = SEC_ALLOC; | |
4034 | if (h->esym.asym.sc == scCommon) | |
4035 | h->esym.asym.sc = scSCommon; | |
4036 | } | |
4037 | } | |
4038 | } | |
4039 | ||
4040 | return true; | |
4041 | } | |
4042 | \f | |
4043 | /* ECOFF final link routines. */ | |
4044 | ||
4045 | static boolean ecoff_final_link_debug_accumulate | |
4046 | PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *, | |
4047 | PTR handle)); | |
4048 | static boolean ecoff_link_write_external | |
4049 | PARAMS ((struct ecoff_link_hash_entry *, PTR)); | |
4050 | static boolean ecoff_indirect_link_order | |
4051 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4052 | struct bfd_link_order *)); | |
4053 | static boolean ecoff_reloc_link_order | |
4054 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4055 | struct bfd_link_order *)); | |
4056 | ||
4057 | /* Structure used to pass information to ecoff_link_write_external. */ | |
4058 | ||
4059 | struct extsym_info | |
4060 | { | |
4061 | bfd *abfd; | |
4062 | struct bfd_link_info *info; | |
4063 | }; | |
4064 | ||
4065 | /* ECOFF final link routine. This looks through all the input BFDs | |
4066 | and gathers together all the debugging information, and then | |
4067 | processes all the link order information. This may cause it to | |
4068 | close and reopen some input BFDs; I'll see how bad this is. */ | |
4069 | ||
4070 | boolean | |
4071 | _bfd_ecoff_bfd_final_link (abfd, info) | |
4072 | bfd *abfd; | |
4073 | struct bfd_link_info *info; | |
4074 | { | |
4075 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
4076 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
4077 | HDRR *symhdr; | |
4078 | PTR handle; | |
4079 | register bfd *input_bfd; | |
4080 | asection *o; | |
4081 | struct bfd_link_order *p; | |
4082 | struct extsym_info einfo; | |
4083 | ||
4084 | /* We accumulate the debugging information counts in the symbolic | |
4085 | header. */ | |
4086 | symhdr = &debug->symbolic_header; | |
4087 | symhdr->vstamp = 0; | |
4088 | symhdr->ilineMax = 0; | |
4089 | symhdr->cbLine = 0; | |
4090 | symhdr->idnMax = 0; | |
4091 | symhdr->ipdMax = 0; | |
4092 | symhdr->isymMax = 0; | |
4093 | symhdr->ioptMax = 0; | |
4094 | symhdr->iauxMax = 0; | |
4095 | symhdr->issMax = 0; | |
4096 | symhdr->issExtMax = 0; | |
4097 | symhdr->ifdMax = 0; | |
4098 | symhdr->crfd = 0; | |
4099 | symhdr->iextMax = 0; | |
4100 | ||
4101 | /* We accumulate the debugging information itself in the debug_info | |
4102 | structure. */ | |
4103 | debug->line = NULL; | |
4104 | debug->external_dnr = NULL; | |
4105 | debug->external_pdr = NULL; | |
4106 | debug->external_sym = NULL; | |
4107 | debug->external_opt = NULL; | |
4108 | debug->external_aux = NULL; | |
4109 | debug->ss = NULL; | |
4110 | debug->ssext = debug->ssext_end = NULL; | |
4111 | debug->external_fdr = NULL; | |
4112 | debug->external_rfd = NULL; | |
4113 | debug->external_ext = debug->external_ext_end = NULL; | |
4114 | ||
4115 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); | |
4116 | if (handle == (PTR) NULL) | |
4117 | return false; | |
4118 | ||
4119 | /* Accumulate the debugging symbols from each input BFD. */ | |
4120 | for (input_bfd = info->input_bfds; | |
4121 | input_bfd != (bfd *) NULL; | |
4122 | input_bfd = input_bfd->link_next) | |
4123 | { | |
4124 | boolean ret; | |
4125 | ||
4126 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) | |
4127 | { | |
4128 | /* Abitrarily set the symbolic header vstamp to the vstamp | |
4129 | of the first object file in the link. */ | |
4130 | if (symhdr->vstamp == 0) | |
4131 | symhdr->vstamp | |
4132 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; | |
4133 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, | |
4134 | handle); | |
4135 | } | |
4136 | else | |
4137 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, | |
4138 | debug, &backend->debug_swap, | |
4139 | input_bfd, info); | |
4140 | if (! ret) | |
4141 | return false; | |
4142 | ||
4143 | /* Combine the register masks. */ | |
4144 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; | |
4145 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; | |
4146 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; | |
4147 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; | |
4148 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; | |
4149 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; | |
4150 | } | |
4151 | ||
4152 | /* Write out the external symbols. */ | |
4153 | einfo.abfd = abfd; | |
4154 | einfo.info = info; | |
4155 | ecoff_link_hash_traverse (ecoff_hash_table (info), | |
4156 | ecoff_link_write_external, | |
4157 | (PTR) &einfo); | |
4158 | ||
4159 | if (info->relocateable) | |
4160 | { | |
4161 | /* We need to make a pass over the link_orders to count up the | |
4162 | number of relocations we will need to output, so that we know | |
4163 | how much space they will take up. */ | |
4164 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4165 | { | |
4166 | o->reloc_count = 0; | |
4167 | for (p = o->link_order_head; | |
4168 | p != (struct bfd_link_order *) NULL; | |
4169 | p = p->next) | |
4170 | if (p->type == bfd_indirect_link_order) | |
4171 | o->reloc_count += p->u.indirect.section->reloc_count; | |
4172 | else if (p->type == bfd_section_reloc_link_order | |
4173 | || p->type == bfd_symbol_reloc_link_order) | |
4174 | ++o->reloc_count; | |
4175 | } | |
4176 | } | |
4177 | ||
4178 | /* Compute the reloc and symbol file positions. */ | |
4179 | ecoff_compute_reloc_file_positions (abfd); | |
4180 | ||
4181 | /* Write out the debugging information. */ | |
4182 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, | |
4183 | &backend->debug_swap, info, | |
4184 | ecoff_data (abfd)->sym_filepos)) | |
4185 | return false; | |
4186 | ||
4187 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); | |
4188 | ||
4189 | if (info->relocateable) | |
4190 | { | |
4191 | /* Now reset the reloc_count field of the sections in the output | |
4192 | BFD to 0, so that we can use them to keep track of how many | |
4193 | relocs we have output thus far. */ | |
4194 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4195 | o->reloc_count = 0; | |
4196 | } | |
4197 | ||
4198 | /* Get a value for the GP register. */ | |
4199 | if (ecoff_data (abfd)->gp == 0) | |
4200 | { | |
4201 | struct bfd_link_hash_entry *h; | |
4202 | ||
4203 | h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); | |
4204 | if (h != (struct bfd_link_hash_entry *) NULL | |
4205 | && h->type == bfd_link_hash_defined) | |
4206 | ecoff_data (abfd)->gp = (h->u.def.value | |
4207 | + h->u.def.section->output_section->vma | |
4208 | + h->u.def.section->output_offset); | |
4209 | else if (info->relocateable) | |
4210 | { | |
4211 | bfd_vma lo; | |
4212 | ||
4213 | /* Make up a value. */ | |
4214 | lo = (bfd_vma) -1; | |
4215 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4216 | { | |
4217 | if (o->vma < lo | |
4218 | && (strcmp (o->name, _SBSS) == 0 | |
4219 | || strcmp (o->name, _SDATA) == 0 | |
4220 | || strcmp (o->name, _LIT4) == 0 | |
4221 | || strcmp (o->name, _LIT8) == 0 | |
4222 | || strcmp (o->name, _LITA) == 0)) | |
4223 | lo = o->vma; | |
4224 | } | |
4225 | ecoff_data (abfd)->gp = lo + 0x8000; | |
4226 | } | |
4227 | else | |
4228 | { | |
4229 | /* If the relocate_section function needs to do a reloc | |
4230 | involving the GP value, it should make a reloc_dangerous | |
4231 | callback to warn that GP is not defined. */ | |
4232 | } | |
4233 | } | |
4234 | ||
4235 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4236 | { | |
4237 | for (p = o->link_order_head; | |
4238 | p != (struct bfd_link_order *) NULL; | |
4239 | p = p->next) | |
4240 | { | |
4241 | if (p->type == bfd_indirect_link_order | |
4242 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
4243 | == bfd_target_ecoff_flavour)) | |
4244 | { | |
4245 | if (! ecoff_indirect_link_order (abfd, info, o, p)) | |
4246 | return false; | |
4247 | } | |
4248 | else if (p->type == bfd_section_reloc_link_order | |
4249 | || p->type == bfd_symbol_reloc_link_order) | |
4250 | { | |
4251 | if (! ecoff_reloc_link_order (abfd, info, o, p)) | |
4252 | return false; | |
4253 | } | |
4254 | else | |
4255 | { | |
4256 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
4257 | return false; | |
4258 | } | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; | |
4263 | ||
4264 | ecoff_data (abfd)->linker = true; | |
4265 | ||
4266 | return true; | |
4267 | } | |
4268 | ||
4269 | /* Accumulate the debugging information for an input BFD into the | |
4270 | output BFD. This must read in the symbolic information of the | |
4271 | input BFD. */ | |
4272 | ||
4273 | static boolean | |
4274 | ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle) | |
4275 | bfd *output_bfd; | |
4276 | bfd *input_bfd; | |
4277 | struct bfd_link_info *info; | |
4278 | PTR handle; | |
4279 | { | |
4280 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; | |
4281 | const struct ecoff_debug_swap * const swap = | |
4282 | &ecoff_backend (input_bfd)->debug_swap; | |
4283 | HDRR *symhdr = &debug->symbolic_header; | |
4284 | boolean ret; | |
4285 | ||
4286 | #define READ(ptr, offset, count, size, type) \ | |
4287 | if (symhdr->count == 0) \ | |
4288 | debug->ptr = NULL; \ | |
4289 | else \ | |
4290 | { \ | |
4291 | debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \ | |
4292 | if (debug->ptr == NULL) \ | |
4293 | { \ | |
4294 | ret = false; \ | |
4295 | goto return_something; \ | |
4296 | } \ | |
4297 | if ((bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) \ | |
4298 | != 0) \ | |
4299 | || (bfd_read (debug->ptr, size, symhdr->count, \ | |
4300 | input_bfd) != size * symhdr->count)) \ | |
4301 | { \ | |
4302 | ret = false; \ | |
4303 | goto return_something; \ | |
4304 | } \ | |
4305 | } | |
4306 | ||
4307 | /* If raw_syments is not NULL, then the data was already by read by | |
4308 | _bfd_ecoff_slurp_symbolic_info. */ | |
4309 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4310 | { | |
4311 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), | |
4312 | unsigned char *); | |
4313 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
4314 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
4315 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
4316 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
4317 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
4318 | union aux_ext *); | |
4319 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
4320 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
4321 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
4322 | } | |
4323 | #undef READ | |
4324 | ||
4325 | /* We do not read the external strings or the external symbols. */ | |
4326 | ||
4327 | ret = (bfd_ecoff_debug_accumulate | |
4328 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4329 | &ecoff_backend (output_bfd)->debug_swap, | |
4330 | input_bfd, debug, swap, info)); | |
4331 | ||
4332 | return_something: | |
4333 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4334 | { | |
4335 | if (debug->line != NULL) | |
4336 | free (debug->line); | |
4337 | if (debug->external_dnr != NULL) | |
4338 | free (debug->external_dnr); | |
4339 | if (debug->external_pdr != NULL) | |
4340 | free (debug->external_pdr); | |
4341 | if (debug->external_sym != NULL) | |
4342 | free (debug->external_sym); | |
4343 | if (debug->external_opt != NULL) | |
4344 | free (debug->external_opt); | |
4345 | if (debug->external_aux != NULL) | |
4346 | free (debug->external_aux); | |
4347 | if (debug->ss != NULL) | |
4348 | free (debug->ss); | |
4349 | if (debug->external_fdr != NULL) | |
4350 | free (debug->external_fdr); | |
4351 | if (debug->external_rfd != NULL) | |
4352 | free (debug->external_rfd); | |
4353 | ||
4354 | /* Make sure we don't accidentally follow one of these pointers | |
4355 | into freed memory. */ | |
4356 | debug->line = NULL; | |
4357 | debug->external_dnr = NULL; | |
4358 | debug->external_pdr = NULL; | |
4359 | debug->external_sym = NULL; | |
4360 | debug->external_opt = NULL; | |
4361 | debug->external_aux = NULL; | |
4362 | debug->ss = NULL; | |
4363 | debug->external_fdr = NULL; | |
4364 | debug->external_rfd = NULL; | |
4365 | } | |
4366 | ||
4367 | return ret; | |
4368 | } | |
4369 | ||
4370 | /* Put out information for an external symbol. These come only from | |
4371 | the hash table. */ | |
4372 | ||
4373 | static boolean | |
4374 | ecoff_link_write_external (h, data) | |
4375 | struct ecoff_link_hash_entry *h; | |
4376 | PTR data; | |
4377 | { | |
4378 | struct extsym_info *einfo = (struct extsym_info *) data; | |
4379 | bfd *output_bfd = einfo->abfd; | |
4380 | boolean strip; | |
4381 | ||
4382 | /* We need to check if this symbol is being stripped. */ | |
4383 | if (h->root.type == bfd_link_hash_undefined | |
4384 | || h->root.type == bfd_link_hash_undefweak) | |
4385 | strip = false; | |
4386 | else if (einfo->info->strip == strip_all | |
4387 | || (einfo->info->strip == strip_some | |
4388 | && bfd_hash_lookup (einfo->info->keep_hash, | |
4389 | h->root.root.string, | |
4390 | false, false) == NULL)) | |
4391 | strip = true; | |
4392 | else | |
4393 | strip = false; | |
4394 | ||
4395 | if (strip || h->written) | |
4396 | return true; | |
4397 | ||
4398 | if (h->abfd == (bfd *) NULL) | |
4399 | { | |
4400 | h->esym.jmptbl = 0; | |
4401 | h->esym.cobol_main = 0; | |
4402 | h->esym.weakext = 0; | |
4403 | h->esym.reserved = 0; | |
4404 | h->esym.ifd = ifdNil; | |
4405 | h->esym.asym.value = 0; | |
4406 | h->esym.asym.st = stGlobal; | |
4407 | ||
4408 | if (h->root.type != bfd_link_hash_defined | |
4409 | && h->root.type != bfd_link_hash_defweak) | |
4410 | h->esym.asym.sc = scAbs; | |
4411 | else | |
4412 | { | |
4413 | asection *output_section; | |
4414 | const char *name; | |
4415 | ||
4416 | output_section = h->root.u.def.section->output_section; | |
4417 | name = bfd_section_name (output_section->owner, output_section); | |
4418 | ||
4419 | if (strcmp (name, _TEXT) == 0) | |
4420 | h->esym.asym.sc = scText; | |
4421 | else if (strcmp (name, _DATA) == 0) | |
4422 | h->esym.asym.sc = scData; | |
4423 | else if (strcmp (name, _SDATA) == 0) | |
4424 | h->esym.asym.sc = scSData; | |
4425 | else if (strcmp (name, _RDATA) == 0) | |
4426 | h->esym.asym.sc = scRData; | |
4427 | else if (strcmp (name, _BSS) == 0) | |
4428 | h->esym.asym.sc = scBss; | |
4429 | else if (strcmp (name, _SBSS) == 0) | |
4430 | h->esym.asym.sc = scSBss; | |
4431 | else if (strcmp (name, _INIT) == 0) | |
4432 | h->esym.asym.sc = scInit; | |
4433 | else if (strcmp (name, _FINI) == 0) | |
4434 | h->esym.asym.sc = scFini; | |
4435 | else if (strcmp (name, _PDATA) == 0) | |
4436 | h->esym.asym.sc = scPData; | |
4437 | else if (strcmp (name, _XDATA) == 0) | |
4438 | h->esym.asym.sc = scXData; | |
4439 | else if (strcmp (name, _RCONST) == 0) | |
4440 | h->esym.asym.sc = scRConst; | |
4441 | else | |
4442 | h->esym.asym.sc = scAbs; | |
4443 | } | |
4444 | ||
4445 | h->esym.asym.reserved = 0; | |
4446 | h->esym.asym.index = indexNil; | |
4447 | } | |
4448 | else if (h->esym.ifd != -1) | |
4449 | { | |
4450 | struct ecoff_debug_info *debug; | |
4451 | ||
4452 | /* Adjust the FDR index for the symbol by that used for the | |
4453 | input BFD. */ | |
4454 | debug = &ecoff_data (h->abfd)->debug_info; | |
4455 | BFD_ASSERT (h->esym.ifd >= 0 | |
4456 | && h->esym.ifd < debug->symbolic_header.ifdMax); | |
4457 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; | |
4458 | } | |
4459 | ||
4460 | switch (h->root.type) | |
4461 | { | |
4462 | default: | |
4463 | case bfd_link_hash_new: | |
4464 | abort (); | |
4465 | case bfd_link_hash_undefined: | |
4466 | case bfd_link_hash_undefweak: | |
4467 | if (h->esym.asym.sc != scUndefined | |
4468 | && h->esym.asym.sc != scSUndefined) | |
4469 | h->esym.asym.sc = scUndefined; | |
4470 | break; | |
4471 | case bfd_link_hash_defined: | |
4472 | case bfd_link_hash_defweak: | |
4473 | if (h->esym.asym.sc == scUndefined | |
4474 | || h->esym.asym.sc == scSUndefined) | |
4475 | h->esym.asym.sc = scAbs; | |
4476 | else if (h->esym.asym.sc == scCommon) | |
4477 | h->esym.asym.sc = scBss; | |
4478 | else if (h->esym.asym.sc == scSCommon) | |
4479 | h->esym.asym.sc = scSBss; | |
4480 | h->esym.asym.value = (h->root.u.def.value | |
4481 | + h->root.u.def.section->output_section->vma | |
4482 | + h->root.u.def.section->output_offset); | |
4483 | break; | |
4484 | case bfd_link_hash_common: | |
4485 | if (h->esym.asym.sc != scCommon | |
4486 | && h->esym.asym.sc != scSCommon) | |
4487 | h->esym.asym.sc = scCommon; | |
4488 | h->esym.asym.value = h->root.u.c.size; | |
4489 | break; | |
4490 | case bfd_link_hash_indirect: | |
4491 | case bfd_link_hash_warning: | |
4492 | /* FIXME: Ignore these for now. The circumstances under which | |
4493 | they should be written out are not clear to me. */ | |
4494 | return true; | |
4495 | } | |
4496 | ||
4497 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the | |
4498 | symbol number. */ | |
4499 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; | |
4500 | h->written = 1; | |
4501 | ||
4502 | return (bfd_ecoff_debug_one_external | |
4503 | (output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4504 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, | |
4505 | &h->esym)); | |
4506 | } | |
4507 | ||
4508 | /* Relocate and write an ECOFF section into an ECOFF output file. */ | |
4509 | ||
4510 | static boolean | |
4511 | ecoff_indirect_link_order (output_bfd, info, output_section, link_order) | |
4512 | bfd *output_bfd; | |
4513 | struct bfd_link_info *info; | |
4514 | asection *output_section; | |
4515 | struct bfd_link_order *link_order; | |
4516 | { | |
4517 | asection *input_section; | |
4518 | bfd *input_bfd; | |
4519 | struct ecoff_section_tdata *section_tdata; | |
4520 | bfd_size_type raw_size; | |
4521 | bfd_size_type cooked_size; | |
4522 | bfd_byte *contents = NULL; | |
4523 | bfd_size_type external_reloc_size; | |
4524 | bfd_size_type external_relocs_size; | |
4525 | PTR external_relocs = NULL; | |
4526 | ||
4527 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); | |
4528 | ||
4529 | if (link_order->size == 0) | |
4530 | return true; | |
4531 | ||
4532 | input_section = link_order->u.indirect.section; | |
4533 | input_bfd = input_section->owner; | |
4534 | section_tdata = ecoff_section_data (input_bfd, input_section); | |
4535 | ||
4536 | raw_size = input_section->_raw_size; | |
4537 | cooked_size = input_section->_cooked_size; | |
4538 | if (cooked_size == 0) | |
4539 | cooked_size = raw_size; | |
4540 | ||
4541 | BFD_ASSERT (input_section->output_section == output_section); | |
4542 | BFD_ASSERT (input_section->output_offset == link_order->offset); | |
4543 | BFD_ASSERT (cooked_size == link_order->size); | |
4544 | ||
4545 | /* Get the section contents. We allocate memory for the larger of | |
4546 | the size before relocating and the size after relocating. */ | |
4547 | contents = (bfd_byte *) bfd_malloc (raw_size >= cooked_size | |
4548 | ? (size_t) raw_size | |
4549 | : (size_t) cooked_size); | |
4550 | if (contents == NULL && raw_size != 0) | |
4551 | goto error_return; | |
4552 | ||
4553 | /* If we are relaxing, the contents may have already been read into | |
4554 | memory, in which case we copy them into our new buffer. We don't | |
4555 | simply reuse the old buffer in case cooked_size > raw_size. */ | |
4556 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4557 | && section_tdata->contents != (bfd_byte *) NULL) | |
4558 | memcpy (contents, section_tdata->contents, (size_t) raw_size); | |
4559 | else | |
4560 | { | |
4561 | if (! bfd_get_section_contents (input_bfd, input_section, | |
4562 | (PTR) contents, | |
4563 | (file_ptr) 0, raw_size)) | |
4564 | goto error_return; | |
4565 | } | |
4566 | ||
4567 | /* Get the relocs. If we are relaxing MIPS code, they will already | |
4568 | have been read in. Otherwise, we read them in now. */ | |
4569 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; | |
4570 | external_relocs_size = external_reloc_size * input_section->reloc_count; | |
4571 | ||
4572 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4573 | && section_tdata->external_relocs != NULL) | |
4574 | external_relocs = section_tdata->external_relocs; | |
4575 | else | |
4576 | { | |
4577 | external_relocs = (PTR) bfd_malloc ((size_t) external_relocs_size); | |
4578 | if (external_relocs == NULL && external_relocs_size != 0) | |
4579 | goto error_return; | |
4580 | ||
4581 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
4582 | || (bfd_read (external_relocs, 1, external_relocs_size, input_bfd) | |
4583 | != external_relocs_size)) | |
4584 | goto error_return; | |
4585 | } | |
4586 | ||
4587 | /* Relocate the section contents. */ | |
4588 | if (! ((*ecoff_backend (input_bfd)->relocate_section) | |
4589 | (output_bfd, info, input_bfd, input_section, contents, | |
4590 | external_relocs))) | |
4591 | goto error_return; | |
4592 | ||
4593 | /* Write out the relocated section. */ | |
4594 | if (! bfd_set_section_contents (output_bfd, | |
4595 | output_section, | |
4596 | (PTR) contents, | |
4597 | input_section->output_offset, | |
4598 | cooked_size)) | |
4599 | goto error_return; | |
4600 | ||
4601 | /* If we are producing relocateable output, the relocs were | |
4602 | modified, and we write them out now. We use the reloc_count | |
4603 | field of output_section to keep track of the number of relocs we | |
4604 | have output so far. */ | |
4605 | if (info->relocateable) | |
4606 | { | |
4607 | if (bfd_seek (output_bfd, | |
4608 | (output_section->rel_filepos + | |
4609 | output_section->reloc_count * external_reloc_size), | |
4610 | SEEK_SET) != 0 | |
4611 | || (bfd_write (external_relocs, 1, external_relocs_size, output_bfd) | |
4612 | != external_relocs_size)) | |
4613 | goto error_return; | |
4614 | output_section->reloc_count += input_section->reloc_count; | |
4615 | } | |
4616 | ||
4617 | if (contents != NULL) | |
4618 | free (contents); | |
4619 | if (external_relocs != NULL && section_tdata == NULL) | |
4620 | free (external_relocs); | |
4621 | return true; | |
4622 | ||
4623 | error_return: | |
4624 | if (contents != NULL) | |
4625 | free (contents); | |
4626 | if (external_relocs != NULL && section_tdata == NULL) | |
4627 | free (external_relocs); | |
4628 | return false; | |
4629 | } | |
4630 | ||
4631 | /* Generate a reloc when linking an ECOFF file. This is a reloc | |
4632 | requested by the linker, and does come from any input file. This | |
4633 | is used to build constructor and destructor tables when linking | |
4634 | with -Ur. */ | |
4635 | ||
4636 | static boolean | |
4637 | ecoff_reloc_link_order (output_bfd, info, output_section, link_order) | |
4638 | bfd *output_bfd; | |
4639 | struct bfd_link_info *info; | |
4640 | asection *output_section; | |
4641 | struct bfd_link_order *link_order; | |
4642 | { | |
4643 | enum bfd_link_order_type type; | |
4644 | asection *section; | |
4645 | bfd_vma addend; | |
4646 | arelent rel; | |
4647 | struct internal_reloc in; | |
4648 | bfd_size_type external_reloc_size; | |
4649 | bfd_byte *rbuf; | |
4650 | boolean ok; | |
4651 | ||
4652 | type = link_order->type; | |
4653 | section = NULL; | |
4654 | addend = link_order->u.reloc.p->addend; | |
4655 | ||
4656 | /* We set up an arelent to pass to the backend adjust_reloc_out | |
4657 | routine. */ | |
4658 | rel.address = link_order->offset; | |
4659 | ||
4660 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
4661 | if (rel.howto == 0) | |
4662 | { | |
4663 | bfd_set_error (bfd_error_bad_value); | |
4664 | return false; | |
4665 | } | |
4666 | ||
4667 | if (type == bfd_section_reloc_link_order) | |
4668 | { | |
4669 | section = link_order->u.reloc.p->u.section; | |
4670 | rel.sym_ptr_ptr = section->symbol_ptr_ptr; | |
4671 | } | |
4672 | else | |
4673 | { | |
4674 | struct bfd_link_hash_entry *h; | |
4675 | ||
4676 | /* Treat a reloc against a defined symbol as though it were | |
4677 | actually against the section. */ | |
4678 | h = bfd_wrapped_link_hash_lookup (output_bfd, info, | |
4679 | link_order->u.reloc.p->u.name, | |
4680 | false, false, false); | |
4681 | if (h != NULL | |
4682 | && (h->type == bfd_link_hash_defined | |
4683 | || h->type == bfd_link_hash_defweak)) | |
4684 | { | |
4685 | type = bfd_section_reloc_link_order; | |
4686 | section = h->u.def.section->output_section; | |
4687 | /* It seems that we ought to add the symbol value to the | |
4688 | addend here, but in practice it has already been added | |
4689 | because it was passed to constructor_callback. */ | |
4690 | addend += section->vma + h->u.def.section->output_offset; | |
4691 | } | |
4692 | else | |
4693 | { | |
4694 | /* We can't set up a reloc against a symbol correctly, | |
4695 | because we have no asymbol structure. Currently no | |
4696 | adjust_reloc_out routine cares. */ | |
4697 | rel.sym_ptr_ptr = (asymbol **) NULL; | |
4698 | } | |
4699 | } | |
4700 | ||
4701 | /* All ECOFF relocs are in-place. Put the addend into the object | |
4702 | file. */ | |
4703 | ||
4704 | BFD_ASSERT (rel.howto->partial_inplace); | |
4705 | if (addend != 0) | |
4706 | { | |
4707 | bfd_size_type size; | |
4708 | bfd_reloc_status_type rstat; | |
4709 | bfd_byte *buf; | |
4710 | boolean ok; | |
4711 | ||
4712 | size = bfd_get_reloc_size (rel.howto); | |
4713 | buf = (bfd_byte *) bfd_zmalloc (size); | |
4714 | if (buf == (bfd_byte *) NULL) | |
4715 | return false; | |
4716 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, addend, buf); | |
4717 | switch (rstat) | |
4718 | { | |
4719 | case bfd_reloc_ok: | |
4720 | break; | |
4721 | default: | |
4722 | case bfd_reloc_outofrange: | |
4723 | abort (); | |
4724 | case bfd_reloc_overflow: | |
4725 | if (! ((*info->callbacks->reloc_overflow) | |
4726 | (info, | |
4727 | (link_order->type == bfd_section_reloc_link_order | |
4728 | ? bfd_section_name (output_bfd, section) | |
4729 | : link_order->u.reloc.p->u.name), | |
4730 | rel.howto->name, addend, (bfd *) NULL, | |
4731 | (asection *) NULL, (bfd_vma) 0))) | |
4732 | { | |
4733 | free (buf); | |
4734 | return false; | |
4735 | } | |
4736 | break; | |
4737 | } | |
4738 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
4739 | (file_ptr) link_order->offset, size); | |
4740 | free (buf); | |
4741 | if (! ok) | |
4742 | return false; | |
4743 | } | |
4744 | ||
4745 | rel.addend = 0; | |
4746 | ||
4747 | /* Move the information into a internal_reloc structure. */ | |
4748 | in.r_vaddr = (rel.address | |
4749 | + bfd_get_section_vma (output_bfd, output_section)); | |
4750 | in.r_type = rel.howto->type; | |
4751 | ||
4752 | if (type == bfd_symbol_reloc_link_order) | |
4753 | { | |
4754 | struct ecoff_link_hash_entry *h; | |
4755 | ||
4756 | h = ((struct ecoff_link_hash_entry *) | |
4757 | bfd_wrapped_link_hash_lookup (output_bfd, info, | |
4758 | link_order->u.reloc.p->u.name, | |
4759 | false, false, true)); | |
4760 | if (h != (struct ecoff_link_hash_entry *) NULL | |
4761 | && h->indx != -1) | |
4762 | in.r_symndx = h->indx; | |
4763 | else | |
4764 | { | |
4765 | if (! ((*info->callbacks->unattached_reloc) | |
4766 | (info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
4767 | (asection *) NULL, (bfd_vma) 0))) | |
4768 | return false; | |
4769 | in.r_symndx = 0; | |
4770 | } | |
4771 | in.r_extern = 1; | |
4772 | } | |
4773 | else | |
4774 | { | |
4775 | CONST char *name; | |
4776 | ||
4777 | name = bfd_get_section_name (output_bfd, section); | |
4778 | if (strcmp (name, ".text") == 0) | |
4779 | in.r_symndx = RELOC_SECTION_TEXT; | |
4780 | else if (strcmp (name, ".rdata") == 0) | |
4781 | in.r_symndx = RELOC_SECTION_RDATA; | |
4782 | else if (strcmp (name, ".data") == 0) | |
4783 | in.r_symndx = RELOC_SECTION_DATA; | |
4784 | else if (strcmp (name, ".sdata") == 0) | |
4785 | in.r_symndx = RELOC_SECTION_SDATA; | |
4786 | else if (strcmp (name, ".sbss") == 0) | |
4787 | in.r_symndx = RELOC_SECTION_SBSS; | |
4788 | else if (strcmp (name, ".bss") == 0) | |
4789 | in.r_symndx = RELOC_SECTION_BSS; | |
4790 | else if (strcmp (name, ".init") == 0) | |
4791 | in.r_symndx = RELOC_SECTION_INIT; | |
4792 | else if (strcmp (name, ".lit8") == 0) | |
4793 | in.r_symndx = RELOC_SECTION_LIT8; | |
4794 | else if (strcmp (name, ".lit4") == 0) | |
4795 | in.r_symndx = RELOC_SECTION_LIT4; | |
4796 | else if (strcmp (name, ".xdata") == 0) | |
4797 | in.r_symndx = RELOC_SECTION_XDATA; | |
4798 | else if (strcmp (name, ".pdata") == 0) | |
4799 | in.r_symndx = RELOC_SECTION_PDATA; | |
4800 | else if (strcmp (name, ".fini") == 0) | |
4801 | in.r_symndx = RELOC_SECTION_FINI; | |
4802 | else if (strcmp (name, ".lita") == 0) | |
4803 | in.r_symndx = RELOC_SECTION_LITA; | |
4804 | else if (strcmp (name, "*ABS*") == 0) | |
4805 | in.r_symndx = RELOC_SECTION_ABS; | |
4806 | else if (strcmp (name, ".rconst") == 0) | |
4807 | in.r_symndx = RELOC_SECTION_RCONST; | |
4808 | else | |
4809 | abort (); | |
4810 | in.r_extern = 0; | |
4811 | } | |
4812 | ||
4813 | /* Let the BFD backend adjust the reloc. */ | |
4814 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); | |
4815 | ||
4816 | /* Get some memory and swap out the reloc. */ | |
4817 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; | |
4818 | rbuf = (bfd_byte *) bfd_malloc ((size_t) external_reloc_size); | |
4819 | if (rbuf == (bfd_byte *) NULL) | |
4820 | return false; | |
4821 | ||
4822 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (PTR) rbuf); | |
4823 | ||
4824 | ok = (bfd_seek (output_bfd, | |
4825 | (output_section->rel_filepos + | |
4826 | output_section->reloc_count * external_reloc_size), | |
4827 | SEEK_SET) == 0 | |
4828 | && (bfd_write ((PTR) rbuf, 1, external_reloc_size, output_bfd) | |
4829 | == external_reloc_size)); | |
4830 | ||
4831 | if (ok) | |
4832 | ++output_section->reloc_count; | |
4833 | ||
4834 | free (rbuf); | |
4835 | ||
4836 | return ok; | |
4837 | } |