Commit | Line | Data |
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1f29e30b JG |
1 | /* BFD back-end for MIPS Extended-Coff files. |
2 | Copyright 1990, 1991, 1992 Free Software Foundation, Inc. | |
8fa0d3a0 ILT |
3 | Original version by Per Bothner. |
4 | Full support by Ian Lance Taylor, ian@cygnus.com. | |
1327fb29 | 5 | |
68b70212 | 6 | This file is part of BFD, the Binary File Descriptor library. |
23b0b558 | 7 | |
68b70212 | 8 | This program is free software; you can redistribute it and/or modify |
23b0b558 | 9 | it under the terms of the GNU General Public License as published by |
68b70212 JG |
10 | the Free Software Foundation; either version 2 of the License, or |
11 | (at your option) any later version. | |
23b0b558 | 12 | |
68b70212 | 13 | This program is distributed in the hope that it will be useful, |
23b0b558 JG |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
68b70212 JG |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
1327fb29 | 21 | |
23b0b558 | 22 | #include "bfd.h" |
dd4646ca | 23 | #include "sysdep.h" |
1327fb29 | 24 | #include "libbfd.h" |
8fa0d3a0 | 25 | #include "seclet.h" |
294eaca4 SC |
26 | #include "coff/mips.h" |
27 | #include "coff/internal.h" | |
515c4292 ILT |
28 | #include "coff/sym.h" |
29 | #include "coff/symconst.h" | |
30 | #include "coff/ecoff-ext.h" | |
31 | #include "libcoff.h" | |
32 | ||
33 | /* `Tdata' information kept for ECOFF files. */ | |
34 | ||
35 | #define ecoff_data(abfd) ((abfd)->tdata.ecoff_obj_data) | |
36 | ||
37 | typedef struct ecoff_tdata | |
38 | { | |
8fa0d3a0 ILT |
39 | /* The reloc file position, set by |
40 | ecoff_compute_section_file_positions. */ | |
41 | file_ptr reloc_filepos; | |
42 | ||
43 | /* The symbol table file position, set by ecoff_mkobject_hook. */ | |
515c4292 ILT |
44 | file_ptr sym_filepos; |
45 | ||
b6bef862 ILT |
46 | /* The cached gp value. This is used when relocating. */ |
47 | bfd_vma gp; | |
48 | ||
8fa0d3a0 ILT |
49 | /* The size of the unswapped ECOFF symbolic information. */ |
50 | bfd_size_type raw_size; | |
51 | ||
515c4292 ILT |
52 | /* The unswapped ECOFF symbolic information. */ |
53 | PTR raw_syments; | |
54 | ||
55 | /* The swapped ECOFF symbolic header. */ | |
56 | HDRR symbolic_header; | |
57 | ||
58 | /* Pointers to the unswapped symbolic information. */ | |
59 | unsigned char *line; | |
60 | struct dnr_ext *external_dnr; | |
61 | struct pdr_ext *external_pdr; | |
62 | struct sym_ext *external_sym; | |
63 | struct opt_ext *external_opt; | |
64 | union aux_ext *external_aux; | |
65 | char *ss; | |
66 | char *ssext; | |
67 | struct fdr_ext *external_fdr; | |
68 | struct rfd_ext *external_rfd; | |
69 | struct ext_ext *external_ext; | |
70 | ||
71 | /* The swapped fdr information. */ | |
72 | FDR *fdr; | |
73 | ||
74 | /* The canonical BFD symbols. */ | |
75 | struct ecoff_symbol_struct *canonical_symbols; | |
76 | ||
77 | } ecoff_data_type; | |
78 | ||
79 | /* Each canonical asymbol really looks like this. */ | |
80 | ||
81 | typedef struct ecoff_symbol_struct | |
82 | { | |
83 | /* The actual symbol which the rest of BFD works with */ | |
84 | asymbol symbol; | |
85 | ||
86 | /* The fdr for this symbol. */ | |
87 | FDR *fdr; | |
88 | ||
89 | /* true if this is a local symbol rather than an external one. */ | |
90 | boolean local; | |
91 | ||
92 | /* A pointer to the unswapped hidden information for this symbol */ | |
93 | union | |
94 | { | |
95 | struct sym_ext *lnative; | |
96 | struct ext_ext *enative; | |
97 | } | |
98 | native; | |
99 | } ecoff_symbol_type; | |
100 | ||
101 | /* We take the address of the first element of a asymbol to ensure that the | |
102 | macro is only ever applied to an asymbol. */ | |
103 | #define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd))) | |
104 | ||
105 | /* MIPS ECOFF has COFF sections, but the debugging information is | |
106 | stored in a completely different format. This files uses the some | |
107 | of the swapping routines from coffswap.h, and some of the generic | |
108 | COFF routines in coffgen.c, but, unlike the real COFF targets, does | |
109 | not use coffcode.h itself. */ | |
110 | ||
8fa0d3a0 ILT |
111 | /* Get the generic COFF swapping routines, except for the reloc, |
112 | symbol, and lineno ones. Give them ecoff names. */ | |
113 | #define NO_COFF_RELOCS | |
515c4292 ILT |
114 | #define NO_COFF_SYMBOLS |
115 | #define NO_COFF_LINENOS | |
515c4292 ILT |
116 | #define coff_swap_filehdr_in ecoff_swap_filehdr_in |
117 | #define coff_swap_filehdr_out ecoff_swap_filehdr_out | |
118 | #define coff_swap_aouthdr_in ecoff_swap_aouthdr_in | |
119 | #define coff_swap_aouthdr_out ecoff_swap_aouthdr_out | |
120 | #define coff_swap_scnhdr_in ecoff_swap_scnhdr_in | |
121 | #define coff_swap_scnhdr_out ecoff_swap_scnhdr_out | |
122 | #include "coffswap.h" | |
123 | \f | |
124 | /* This stuff is somewhat copied from coffcode.h. */ | |
125 | ||
126 | static asection bfd_debug_section = { "*DEBUG*" }; | |
127 | ||
128 | /* See whether the magic number matches. */ | |
129 | ||
130 | static boolean | |
131 | DEFUN(ecoff_bad_format_hook, (abfd, filehdr), | |
132 | bfd *abfd AND | |
133 | PTR filehdr) | |
134 | { | |
135 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
136 | ||
137 | if (ECOFFBADMAG (*internal_f)) | |
138 | return false; | |
139 | ||
140 | return true; | |
141 | } | |
142 | ||
143 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ | |
144 | ||
145 | static asection * | |
146 | DEFUN (ecoff_make_section_hook, (abfd, name), | |
147 | bfd *abfd AND | |
148 | char *name) | |
149 | { | |
150 | return (asection *) NULL; | |
151 | } | |
152 | ||
153 | /* Initialize a new section. */ | |
154 | ||
155 | static boolean | |
156 | DEFUN (ecoff_new_section_hook, (abfd, section), | |
157 | bfd *abfd AND | |
158 | asection *section) | |
159 | { | |
160 | section->alignment_power = abfd->xvec->align_power_min; | |
8fa0d3a0 ILT |
161 | |
162 | if (strcmp (section->name, _TEXT) == 0) | |
163 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
164 | else if (strcmp (section->name, _DATA) == 0 | |
165 | || strcmp (section->name, _SDATA) == 0) | |
166 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
167 | else if (strcmp (section->name, _RDATA) == 0 | |
168 | || strcmp (section->name, _LIT8) == 0 | |
169 | || strcmp (section->name, _LIT4) == 0) | |
170 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
171 | else if (strcmp (section->name, _BSS) == 0 | |
172 | || strcmp (section->name, _SBSS) == 0) | |
173 | section->flags |= SEC_ALLOC; | |
174 | ||
175 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
176 | uncertain about .init on some systems and I don't know how shared | |
177 | libraries work. */ | |
178 | ||
515c4292 ILT |
179 | return true; |
180 | } | |
181 | ||
182 | #define ecoff_set_alignment_hook \ | |
183 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
184 | ||
185 | static boolean | |
186 | DEFUN (ecoff_mkobject, (abfd), | |
187 | bfd *abfd) | |
188 | { | |
189 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
190 | bfd_zalloc (abfd, sizeof(ecoff_data_type))); | |
191 | if (abfd->tdata.ecoff_obj_data == NULL) | |
192 | { | |
193 | bfd_error = no_memory; | |
194 | return false; | |
195 | } | |
196 | ||
197 | return true; | |
198 | } | |
199 | ||
200 | /* Create the COFF backend specific information. */ | |
201 | ||
202 | static PTR | |
203 | DEFUN(ecoff_mkobject_hook,(abfd, filehdr), | |
204 | bfd *abfd AND | |
205 | PTR filehdr) | |
206 | { | |
207 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
208 | ecoff_data_type *ecoff; | |
209 | ||
210 | if (ecoff_mkobject (abfd) == false) | |
211 | return NULL; | |
212 | ||
213 | ecoff = ecoff_data (abfd); | |
214 | ecoff->sym_filepos = internal_f->f_symptr; | |
215 | return (PTR) ecoff; | |
216 | } | |
217 | ||
218 | /* Determine the machine architecture and type. */ | |
219 | static boolean | |
220 | DEFUN (ecoff_set_arch_mach_hook, (abfd, filehdr), | |
221 | bfd *abfd AND | |
222 | PTR filehdr) | |
223 | { | |
224 | long machine; | |
225 | enum bfd_architecture arch; | |
226 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
227 | ||
228 | machine = 0; | |
229 | switch (internal_f->f_magic) { | |
230 | case MIPS_MAGIC_1: | |
231 | case MIPS_MAGIC_2: | |
232 | case MIPS_MAGIC_3: | |
233 | arch = bfd_arch_mips; | |
234 | machine = 0; | |
235 | break; | |
236 | ||
237 | default: /* Unreadable input file type */ | |
238 | arch = bfd_arch_obscure; | |
239 | break; | |
240 | } | |
241 | ||
242 | bfd_default_set_arch_mach(abfd, arch, machine); | |
243 | return true; | |
244 | } | |
245 | ||
8fa0d3a0 ILT |
246 | /* Get the section s_flags to use for a section. */ |
247 | ||
248 | static long | |
249 | DEFUN (sec_to_styp_flags, (name, flags), | |
250 | CONST char *name AND | |
251 | flagword flags) | |
252 | { | |
253 | long styp; | |
254 | ||
255 | styp = 0; | |
256 | ||
257 | if (strcmp (name, _TEXT) == 0) | |
258 | styp = STYP_TEXT; | |
259 | else if (strcmp (name, _DATA) == 0) | |
260 | styp == STYP_DATA; | |
261 | else if (strcmp (name, _SDATA) == 0) | |
262 | styp == STYP_SDATA; | |
263 | else if (strcmp (name, _RDATA) == 0) | |
264 | styp = STYP_RDATA; | |
265 | else if (strcmp (name, _LIT8) == 0) | |
266 | styp = STYP_LIT8; | |
267 | else if (strcmp (name, _LIT4) == 0) | |
268 | styp = STYP_LIT4; | |
269 | else if (strcmp (name, _BSS) == 0) | |
270 | styp = STYP_BSS; | |
271 | else if (strcmp (name, _SBSS) == 0) | |
272 | styp = STYP_SBSS; | |
273 | else if (flags & SEC_CODE) | |
274 | styp = STYP_TEXT; | |
275 | else if (flags & SEC_DATA) | |
276 | styp = STYP_DATA; | |
277 | else if (flags & SEC_READONLY) | |
278 | styp = STYP_RDATA; | |
279 | else if (flags & SEC_LOAD) | |
280 | styp = STYP_TEXT; | |
281 | else | |
282 | styp = STYP_BSS; | |
283 | ||
284 | if (flags & SEC_NEVER_LOAD) | |
285 | styp |= STYP_NOLOAD; | |
286 | ||
287 | return styp; | |
288 | } | |
289 | ||
515c4292 ILT |
290 | /* Get the BFD flags to use for a section. */ |
291 | ||
292 | static flagword | |
8fa0d3a0 ILT |
293 | DEFUN (styp_to_sec_flags, (abfd, hdr), |
294 | bfd *abfd AND | |
295 | PTR hdr) | |
515c4292 ILT |
296 | { |
297 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
298 | long styp_flags = internal_s->s_flags; | |
299 | flagword sec_flags=0; | |
300 | ||
301 | if (styp_flags & STYP_NOLOAD) | |
302 | sec_flags |= SEC_NEVER_LOAD; | |
303 | ||
304 | /* For 386 COFF, at least, an unloadable text or data section is | |
305 | actually a shared library section. */ | |
306 | if (styp_flags & STYP_TEXT) | |
307 | { | |
308 | if (sec_flags & SEC_NEVER_LOAD) | |
309 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
310 | else | |
311 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
312 | } | |
313 | else if ((styp_flags & STYP_DATA) | |
314 | || (styp_flags & STYP_RDATA) | |
315 | || (styp_flags & STYP_SDATA)) | |
316 | { | |
317 | if (sec_flags & SEC_NEVER_LOAD) | |
318 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
319 | else | |
320 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
321 | if (styp_flags & STYP_RDATA) | |
322 | sec_flags |= SEC_READONLY; | |
323 | } | |
324 | else if ((styp_flags & STYP_BSS) | |
325 | || (styp_flags & STYP_SBSS)) | |
326 | { | |
327 | sec_flags |= SEC_ALLOC; | |
328 | } | |
329 | else if (styp_flags & STYP_INFO) | |
330 | { | |
331 | sec_flags |= SEC_NEVER_LOAD; | |
332 | } | |
333 | else if ((styp_flags & STYP_LIT8) | |
334 | || (styp_flags & STYP_LIT4)) | |
335 | { | |
336 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
337 | } | |
338 | else | |
339 | { | |
340 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
341 | } | |
342 | ||
343 | return sec_flags; | |
344 | } | |
345 | \f | |
8fa0d3a0 ILT |
346 | /* Read in and swap the important symbolic information for an ECOFF |
347 | object file. */ | |
348 | ||
349 | static boolean | |
350 | DEFUN (ecoff_slurp_symbolic_info, (abfd), | |
351 | bfd *abfd) | |
352 | { | |
353 | struct hdr_ext external_symhdr; | |
354 | HDRR *internal_symhdr; | |
355 | bfd_size_type raw_base; | |
356 | bfd_size_type raw_size; | |
357 | PTR raw; | |
358 | struct fdr_ext *fraw_src; | |
359 | struct fdr_ext *fraw_end; | |
360 | struct fdr *fdr_ptr; | |
361 | ||
362 | /* Check whether we've already gotten it, and whether there's any to | |
363 | get. */ | |
364 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
365 | return true; | |
366 | if (ecoff_data (abfd)->sym_filepos == 0) | |
367 | { | |
368 | bfd_get_symcount (abfd) = 0; | |
369 | return true; | |
370 | } | |
371 | ||
372 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
373 | as read from the file header, but on ECOFF this is always the | |
374 | size of the symbolic information header. It would be cleaner to | |
375 | handle this when we first read the file in coffgen.c. */ | |
376 | if (bfd_get_symcount (abfd) != sizeof (external_symhdr)) | |
377 | { | |
378 | bfd_error = bad_value; | |
379 | return false; | |
380 | } | |
381 | ||
382 | /* Read the symbolic information header. */ | |
383 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
384 | || (bfd_read ((PTR) &external_symhdr, sizeof (external_symhdr), 1, abfd) | |
385 | != sizeof (external_symhdr))) | |
386 | { | |
387 | bfd_error = system_call_error; | |
388 | return false; | |
389 | } | |
390 | internal_symhdr = &ecoff_data (abfd)->symbolic_header; | |
391 | ecoff_swap_hdr_in (abfd, &external_symhdr, internal_symhdr); | |
392 | ||
393 | if (internal_symhdr->magic != magicSym) | |
394 | { | |
395 | bfd_error = bad_value; | |
396 | return false; | |
397 | } | |
398 | ||
399 | /* Now we can get the correct number of symbols. */ | |
400 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
401 | + internal_symhdr->iextMax); | |
402 | ||
403 | /* Read all the symbolic information at once. This expression | |
404 | assumes that the external symbols are always the last item. */ | |
405 | raw_base = ecoff_data (abfd)->sym_filepos + sizeof (external_symhdr); | |
406 | raw_size = (internal_symhdr->cbExtOffset - raw_base | |
407 | + internal_symhdr->iextMax * sizeof (struct ext_ext)); | |
408 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
409 | if (raw == NULL) | |
410 | { | |
411 | bfd_error = no_memory; | |
412 | return false; | |
413 | } | |
414 | if (bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
415 | { | |
416 | bfd_error = system_call_error; | |
417 | bfd_release (abfd, raw); | |
418 | return false; | |
419 | } | |
420 | ||
421 | ecoff_data (abfd)->raw_size = raw_size; | |
422 | ecoff_data (abfd)->raw_syments = raw; | |
423 | ||
424 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
425 | #define FIX(off1, off2, type) \ | |
426 | if (internal_symhdr->off1 == 0) \ | |
427 | ecoff_data (abfd)->off2 = (type *) NULL; \ | |
428 | else \ | |
429 | ecoff_data (abfd)->off2 = (type *) ((char *) raw \ | |
430 | + internal_symhdr->off1 \ | |
431 | - raw_base) | |
432 | FIX (cbLineOffset, line, unsigned char); | |
433 | FIX (cbDnOffset, external_dnr, struct dnr_ext); | |
434 | FIX (cbPdOffset, external_pdr, struct pdr_ext); | |
435 | FIX (cbSymOffset, external_sym, struct sym_ext); | |
436 | FIX (cbOptOffset, external_opt, struct opt_ext); | |
437 | FIX (cbAuxOffset, external_aux, union aux_ext); | |
438 | FIX (cbSsOffset, ss, char); | |
439 | FIX (cbSsExtOffset, ssext, char); | |
440 | FIX (cbFdOffset, external_fdr, struct fdr_ext); | |
441 | FIX (cbRfdOffset, external_rfd, struct rfd_ext); | |
442 | FIX (cbExtOffset, external_ext, struct ext_ext); | |
443 | #undef FIX | |
444 | ||
445 | /* I don't want to always swap all the data, because it will just | |
446 | waste time and most programs will never look at it. The only | |
447 | time the linker needs most of the debugging information swapped | |
448 | is when linking big-endian and little-endian MIPS object files | |
449 | together, which is not a common occurrence. | |
450 | ||
451 | We need to look at the fdr to deal with a lot of information in | |
452 | the symbols, so we swap them here. */ | |
453 | ecoff_data (abfd)->fdr = (struct fdr *) bfd_alloc (abfd, | |
454 | (internal_symhdr->ifdMax * | |
455 | sizeof (struct fdr))); | |
456 | if (ecoff_data (abfd)->fdr == NULL) | |
457 | { | |
458 | bfd_error = no_memory; | |
459 | return false; | |
460 | } | |
461 | fdr_ptr = ecoff_data (abfd)->fdr; | |
462 | fraw_src = ecoff_data (abfd)->external_fdr; | |
463 | fraw_end = fraw_src + internal_symhdr->ifdMax; | |
464 | for (; fraw_src < fraw_end; fraw_src++, fdr_ptr++) | |
465 | ecoff_swap_fdr_in (abfd, fraw_src, fdr_ptr); | |
466 | ||
467 | return true; | |
468 | } | |
469 | \f | |
515c4292 ILT |
470 | /* ECOFF symbol table routines. The ECOFF symbol table is described |
471 | in gcc/mips-tfile.c. */ | |
472 | ||
473 | /* Create an empty symbol. */ | |
474 | ||
475 | static asymbol * | |
476 | DEFUN (ecoff_make_empty_symbol, (abfd), | |
477 | bfd *abfd) | |
478 | { | |
479 | ecoff_symbol_type *new; | |
480 | ||
481 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
482 | if (new == (ecoff_symbol_type *) NULL) | |
483 | { | |
484 | bfd_error = no_memory; | |
485 | return (asymbol *) NULL; | |
486 | } | |
487 | new->symbol.section = (asection *) NULL; | |
488 | new->fdr = (FDR *) NULL; | |
489 | new->local = false; | |
490 | new->native.lnative = (struct sym_ext *) NULL; | |
491 | new->symbol.the_bfd = abfd; | |
492 | return &new->symbol; | |
493 | } | |
494 | ||
495 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
496 | ||
497 | static void | |
498 | DEFUN (ecoff_set_symbol_info, (abfd, ecoff_sym, asym, ext), | |
499 | bfd *abfd AND | |
500 | SYMR *ecoff_sym AND | |
501 | asymbol *asym AND | |
502 | int ext) | |
503 | { | |
504 | asym->the_bfd = abfd; | |
505 | asym->value = ecoff_sym->value; | |
506 | asym->section = &bfd_debug_section; | |
507 | asym->udata = NULL; | |
508 | if (ext) | |
509 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
510 | else | |
511 | asym->flags = BSF_LOCAL; | |
512 | switch (ecoff_sym->sc) | |
513 | { | |
514 | case scNil: | |
515 | asym->flags = 0; | |
516 | break; | |
517 | case scText: | |
518 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
519 | asym->value -= asym->section->vma; | |
520 | break; | |
521 | case scData: | |
522 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
523 | asym->value -= asym->section->vma; | |
524 | break; | |
525 | case scBss: | |
526 | asym->section = &bfd_com_section; | |
527 | asym->flags = 0; | |
528 | break; | |
529 | case scRegister: | |
530 | asym->flags = BSF_DEBUGGING; | |
531 | break; | |
532 | case scAbs: | |
533 | asym->section = &bfd_abs_section; | |
534 | asym->flags = 0; | |
535 | break; | |
536 | case scUndefined: | |
537 | asym->section = &bfd_und_section; | |
538 | asym->flags = 0; | |
539 | break; | |
540 | case scCdbLocal: | |
541 | case scBits: | |
542 | case scCdbSystem: | |
543 | case scRegImage: | |
544 | case scInfo: | |
545 | case scUserStruct: | |
546 | asym->flags = BSF_DEBUGGING; | |
547 | break; | |
548 | case scSData: | |
549 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
550 | asym->value -= asym->section->vma; | |
551 | break; | |
552 | case scSBss: | |
553 | asym->section = &bfd_com_section; | |
554 | asym->flags = 0; | |
555 | break; | |
556 | case scRData: | |
557 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
558 | asym->value -= asym->section->vma; | |
559 | break; | |
560 | case scVar: | |
561 | asym->flags = BSF_DEBUGGING; | |
562 | break; | |
563 | case scCommon: | |
564 | case scSCommon: | |
565 | asym->section = &bfd_com_section; | |
566 | asym->flags = 0; | |
567 | break; | |
568 | case scVarRegister: | |
569 | case scVariant: | |
570 | asym->flags = BSF_DEBUGGING; | |
571 | break; | |
572 | case scSUndefined: | |
573 | asym->section = &bfd_und_section; | |
574 | asym->flags = 0; | |
575 | break; | |
576 | case scInit: | |
577 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
578 | asym->value -= asym->section->vma; | |
579 | break; | |
580 | case scBasedVar: | |
581 | case scXData: | |
582 | case scPData: | |
583 | asym->flags = BSF_DEBUGGING; | |
584 | break; | |
585 | case scFini: | |
586 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
587 | asym->value -= asym->section->vma; | |
588 | break; | |
589 | default: | |
590 | asym->flags = 0; | |
591 | break; | |
592 | } | |
593 | } | |
594 | ||
595 | /* Read an ECOFF symbol table. */ | |
596 | ||
597 | static boolean | |
598 | DEFUN (ecoff_slurp_symbol_table, (abfd), | |
599 | bfd *abfd) | |
600 | { | |
515c4292 | 601 | bfd_size_type internal_size; |
515c4292 ILT |
602 | ecoff_symbol_type *internal; |
603 | ecoff_symbol_type *internal_ptr; | |
604 | struct ext_ext *eraw_src; | |
605 | struct ext_ext *eraw_end; | |
8fa0d3a0 ILT |
606 | FDR *fdr_ptr; |
607 | FDR *fdr_end; | |
515c4292 ILT |
608 | |
609 | /* If we've already read in the symbol table, do nothing. */ | |
610 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
611 | return true; | |
612 | ||
8fa0d3a0 ILT |
613 | /* Get the symbolic information. */ |
614 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
615 | return false; | |
616 | if (bfd_get_symcount (abfd) == 0) | |
617 | return true; | |
515c4292 ILT |
618 | |
619 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
620 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
621 | if (internal == NULL) | |
622 | { | |
623 | bfd_error = no_memory; | |
624 | return false; | |
625 | } | |
626 | ||
627 | internal_ptr = internal; | |
628 | eraw_src = ecoff_data (abfd)->external_ext; | |
8fa0d3a0 | 629 | eraw_end = eraw_src + ecoff_data (abfd)->symbolic_header.iextMax; |
515c4292 ILT |
630 | for (; eraw_src < eraw_end; eraw_src++, internal_ptr++) |
631 | { | |
632 | EXTR internal_esym; | |
633 | ||
634 | ecoff_swap_ext_in (abfd, eraw_src, &internal_esym); | |
635 | internal_ptr->symbol.name = (ecoff_data (abfd)->ssext | |
636 | + internal_esym.asym.iss); | |
637 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
638 | &internal_ptr->symbol, 1); | |
639 | internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; | |
640 | internal_ptr->local = false; | |
641 | internal_ptr->native.enative = eraw_src; | |
642 | } | |
643 | ||
644 | /* The local symbols must be accessed via the fdr's, because the | |
645 | string and aux indices are relative to the fdr information. */ | |
646 | fdr_ptr = ecoff_data (abfd)->fdr; | |
8fa0d3a0 | 647 | fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; |
515c4292 ILT |
648 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
649 | { | |
650 | struct sym_ext *lraw_src; | |
651 | struct sym_ext *lraw_end; | |
652 | ||
653 | lraw_src = ecoff_data (abfd)->external_sym + fdr_ptr->isymBase; | |
654 | lraw_end = lraw_src + fdr_ptr->csym; | |
655 | for (; lraw_src < lraw_end; lraw_src++, internal_ptr++) | |
656 | { | |
657 | SYMR internal_sym; | |
658 | ||
659 | ecoff_swap_sym_in (abfd, lraw_src, &internal_sym); | |
660 | internal_ptr->symbol.name = (ecoff_data (abfd)->ss | |
661 | + fdr_ptr->issBase | |
662 | + internal_sym.iss); | |
663 | ecoff_set_symbol_info (abfd, &internal_sym, | |
664 | &internal_ptr->symbol, 0); | |
665 | internal_ptr->fdr = fdr_ptr; | |
666 | internal_ptr->local = true; | |
667 | internal_ptr->native.lnative = lraw_src; | |
668 | } | |
669 | } | |
670 | ||
671 | ecoff_data (abfd)->canonical_symbols = internal; | |
672 | ||
673 | return true; | |
674 | } | |
675 | ||
676 | static unsigned int | |
677 | DEFUN (ecoff_get_symtab_upper_bound, (abfd), | |
678 | bfd *abfd) | |
679 | { | |
8fa0d3a0 ILT |
680 | if (ecoff_slurp_symbolic_info (abfd) == false |
681 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
682 | return 0; |
683 | ||
684 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
685 | } | |
686 | ||
687 | static unsigned int | |
688 | DEFUN (ecoff_get_symtab, (abfd, alocation), | |
689 | bfd *abfd AND | |
690 | asymbol **alocation) | |
691 | { | |
692 | unsigned int counter = 0; | |
693 | ecoff_symbol_type *symbase; | |
694 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
695 | ||
8fa0d3a0 ILT |
696 | if (ecoff_slurp_symbol_table (abfd) == false |
697 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
698 | return 0; |
699 | ||
700 | symbase = ecoff_data (abfd)->canonical_symbols; | |
701 | while (counter < bfd_get_symcount (abfd)) | |
702 | { | |
703 | *(location++) = symbase++; | |
704 | counter++; | |
705 | } | |
706 | *location++ = (ecoff_symbol_type *) NULL; | |
707 | return bfd_get_symcount (abfd); | |
708 | } | |
709 | ||
710 | /* Turn ECOFF type information into a printable string. | |
711 | emit_aggregate and type_to_string are from gcc/mips-tdump.c, with | |
712 | swapping added and used_ptr removed. */ | |
713 | ||
714 | /* Write aggregate information to a string. */ | |
715 | ||
716 | static void | |
717 | DEFUN (emit_aggregate, (abfd, string, rndx, isym, which), | |
718 | bfd *abfd AND | |
719 | char *string AND | |
720 | RNDXR *rndx AND | |
721 | long isym AND | |
722 | CONST char *which) | |
723 | { | |
724 | int ifd = rndx->rfd; | |
725 | int indx = rndx->index; | |
726 | int sym_base, ss_base; | |
727 | CONST char *name; | |
728 | ||
729 | if (ifd == 0xfff) | |
730 | ifd = isym; | |
731 | ||
732 | sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; | |
733 | ss_base = ecoff_data (abfd)->fdr[ifd].issBase; | |
734 | ||
735 | if (indx == indexNil) | |
736 | name = "/* no name */"; | |
737 | else | |
738 | { | |
739 | SYMR sym; | |
740 | ||
741 | indx += sym_base; | |
742 | ecoff_swap_sym_in (abfd, | |
743 | ecoff_data (abfd)->external_sym + indx, | |
744 | &sym); | |
745 | name = ecoff_data (abfd)->ss + ss_base + sym.iss; | |
746 | } | |
747 | ||
748 | sprintf (string, | |
749 | "%s %s { ifd = %d, index = %d }", | |
750 | which, name, ifd, | |
751 | indx + ecoff_data (abfd)->symbolic_header.iextMax); | |
752 | } | |
753 | ||
754 | /* Convert the type information to string format. */ | |
755 | ||
756 | static char * | |
757 | DEFUN (type_to_string, (abfd, aux_ptr, indx, bigendian), | |
758 | bfd *abfd AND | |
759 | union aux_ext *aux_ptr AND | |
760 | int indx AND | |
761 | int bigendian) | |
762 | { | |
763 | AUXU u; | |
764 | struct qual { | |
765 | unsigned int type; | |
766 | int low_bound; | |
767 | int high_bound; | |
768 | int stride; | |
769 | } qualifiers[7]; | |
770 | ||
771 | unsigned int basic_type; | |
772 | int i; | |
773 | static char buffer1[1024]; | |
774 | static char buffer2[1024]; | |
775 | char *p1 = buffer1; | |
776 | char *p2 = buffer2; | |
777 | RNDXR rndx; | |
778 | ||
779 | for (i = 0; i < 7; i++) | |
780 | { | |
781 | qualifiers[i].low_bound = 0; | |
782 | qualifiers[i].high_bound = 0; | |
783 | qualifiers[i].stride = 0; | |
784 | } | |
785 | ||
786 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
787 | return "-1 (no type)"; | |
788 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
789 | ||
790 | basic_type = u.ti.bt; | |
791 | qualifiers[0].type = u.ti.tq0; | |
792 | qualifiers[1].type = u.ti.tq1; | |
793 | qualifiers[2].type = u.ti.tq2; | |
794 | qualifiers[3].type = u.ti.tq3; | |
795 | qualifiers[4].type = u.ti.tq4; | |
796 | qualifiers[5].type = u.ti.tq5; | |
797 | qualifiers[6].type = tqNil; | |
798 | ||
799 | /* | |
800 | * Go get the basic type. | |
801 | */ | |
802 | switch (basic_type) | |
803 | { | |
804 | case btNil: /* undefined */ | |
805 | strcpy (p1, "nil"); | |
806 | break; | |
807 | ||
808 | case btAdr: /* address - integer same size as pointer */ | |
809 | strcpy (p1, "address"); | |
810 | break; | |
811 | ||
812 | case btChar: /* character */ | |
813 | strcpy (p1, "char"); | |
814 | break; | |
815 | ||
816 | case btUChar: /* unsigned character */ | |
817 | strcpy (p1, "unsigned char"); | |
818 | break; | |
819 | ||
820 | case btShort: /* short */ | |
821 | strcpy (p1, "short"); | |
822 | break; | |
823 | ||
824 | case btUShort: /* unsigned short */ | |
825 | strcpy (p1, "unsigned short"); | |
826 | break; | |
827 | ||
828 | case btInt: /* int */ | |
829 | strcpy (p1, "int"); | |
830 | break; | |
831 | ||
832 | case btUInt: /* unsigned int */ | |
833 | strcpy (p1, "unsigned int"); | |
834 | break; | |
835 | ||
836 | case btLong: /* long */ | |
837 | strcpy (p1, "long"); | |
838 | break; | |
839 | ||
840 | case btULong: /* unsigned long */ | |
841 | strcpy (p1, "unsigned long"); | |
842 | break; | |
843 | ||
844 | case btFloat: /* float (real) */ | |
845 | strcpy (p1, "float"); | |
846 | break; | |
847 | ||
848 | case btDouble: /* Double (real) */ | |
849 | strcpy (p1, "double"); | |
850 | break; | |
851 | ||
852 | /* Structures add 1-2 aux words: | |
853 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
854 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
855 | ||
856 | case btStruct: /* Structure (Record) */ | |
857 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
858 | emit_aggregate (abfd, p1, &rndx, | |
859 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
860 | "struct"); | |
861 | indx++; /* skip aux words */ | |
862 | break; | |
863 | ||
864 | /* Unions add 1-2 aux words: | |
865 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
866 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
867 | ||
868 | case btUnion: /* Union */ | |
869 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
870 | emit_aggregate (abfd, p1, &rndx, | |
871 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
872 | "union"); | |
873 | indx++; /* skip aux words */ | |
874 | break; | |
875 | ||
876 | /* Enumerations add 1-2 aux words: | |
877 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
878 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
879 | ||
880 | case btEnum: /* Enumeration */ | |
881 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
882 | emit_aggregate (abfd, p1, &rndx, | |
883 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
884 | "enum"); | |
885 | indx++; /* skip aux words */ | |
886 | break; | |
887 | ||
888 | case btTypedef: /* defined via a typedef, isymRef points */ | |
889 | strcpy (p1, "typedef"); | |
890 | break; | |
891 | ||
892 | case btRange: /* subrange of int */ | |
893 | strcpy (p1, "subrange"); | |
894 | break; | |
895 | ||
896 | case btSet: /* pascal sets */ | |
897 | strcpy (p1, "set"); | |
898 | break; | |
899 | ||
900 | case btComplex: /* fortran complex */ | |
901 | strcpy (p1, "complex"); | |
902 | break; | |
903 | ||
904 | case btDComplex: /* fortran double complex */ | |
905 | strcpy (p1, "double complex"); | |
906 | break; | |
907 | ||
908 | case btIndirect: /* forward or unnamed typedef */ | |
909 | strcpy (p1, "forward/unamed typedef"); | |
910 | break; | |
911 | ||
912 | case btFixedDec: /* Fixed Decimal */ | |
913 | strcpy (p1, "fixed decimal"); | |
914 | break; | |
915 | ||
916 | case btFloatDec: /* Float Decimal */ | |
917 | strcpy (p1, "float decimal"); | |
918 | break; | |
919 | ||
920 | case btString: /* Varying Length Character String */ | |
921 | strcpy (p1, "string"); | |
922 | break; | |
923 | ||
924 | case btBit: /* Aligned Bit String */ | |
925 | strcpy (p1, "bit"); | |
926 | break; | |
927 | ||
928 | case btPicture: /* Picture */ | |
929 | strcpy (p1, "picture"); | |
930 | break; | |
931 | ||
932 | case btVoid: /* Void */ | |
933 | strcpy (p1, "void"); | |
934 | break; | |
935 | ||
936 | default: | |
937 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
938 | break; | |
939 | } | |
940 | ||
941 | p1 += strlen (buffer1); | |
942 | ||
943 | /* | |
944 | * If this is a bitfield, get the bitsize. | |
945 | */ | |
946 | if (u.ti.fBitfield) | |
947 | { | |
948 | int bitsize; | |
949 | ||
950 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
951 | sprintf (p1, " : %d", bitsize); | |
952 | p1 += strlen (buffer1); | |
953 | } | |
954 | ||
955 | ||
956 | /* | |
957 | * Deal with any qualifiers. | |
958 | */ | |
959 | if (qualifiers[0].type != tqNil) | |
960 | { | |
961 | /* | |
962 | * Snarf up any array bounds in the correct order. Arrays | |
963 | * store 5 successive words in the aux. table: | |
964 | * word 0 RNDXR to type of the bounds (ie, int) | |
965 | * word 1 Current file descriptor index | |
966 | * word 2 low bound | |
967 | * word 3 high bound (or -1 if []) | |
968 | * word 4 stride size in bits | |
969 | */ | |
970 | for (i = 0; i < 7; i++) | |
971 | { | |
972 | if (qualifiers[i].type == tqArray) | |
973 | { | |
974 | qualifiers[i].low_bound = | |
975 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
976 | qualifiers[i].high_bound = | |
977 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
978 | qualifiers[i].stride = | |
979 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
980 | indx += 5; | |
981 | } | |
982 | } | |
983 | ||
984 | /* | |
985 | * Now print out the qualifiers. | |
986 | */ | |
987 | for (i = 0; i < 6; i++) | |
988 | { | |
989 | switch (qualifiers[i].type) | |
990 | { | |
991 | case tqNil: | |
992 | case tqMax: | |
993 | break; | |
994 | ||
995 | case tqPtr: | |
996 | strcpy (p2, "ptr to "); | |
997 | p2 += sizeof ("ptr to ")-1; | |
998 | break; | |
999 | ||
1000 | case tqVol: | |
1001 | strcpy (p2, "volatile "); | |
1002 | p2 += sizeof ("volatile ")-1; | |
1003 | break; | |
1004 | ||
1005 | case tqFar: | |
1006 | strcpy (p2, "far "); | |
1007 | p2 += sizeof ("far ")-1; | |
1008 | break; | |
1009 | ||
1010 | case tqProc: | |
1011 | strcpy (p2, "func. ret. "); | |
1012 | p2 += sizeof ("func. ret. "); | |
1013 | break; | |
1014 | ||
1015 | case tqArray: | |
1016 | { | |
1017 | int first_array = i; | |
1018 | int j; | |
1019 | ||
1020 | /* Print array bounds reversed (ie, in the order the C | |
1021 | programmer writes them). C is such a fun language.... */ | |
1022 | ||
1023 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1024 | i++; | |
1025 | ||
1026 | for (j = i; j >= first_array; j--) | |
1027 | { | |
1028 | strcpy (p2, "array ["); | |
1029 | p2 += sizeof ("array [")-1; | |
1030 | if (qualifiers[j].low_bound != 0) | |
1031 | sprintf (p2, | |
1032 | "%ld:%ld {%ld bits}", | |
1033 | (long) qualifiers[j].low_bound, | |
1034 | (long) qualifiers[j].high_bound, | |
1035 | (long) qualifiers[j].stride); | |
1036 | ||
1037 | else if (qualifiers[j].high_bound != -1) | |
1038 | sprintf (p2, | |
1039 | "%ld {%ld bits}", | |
1040 | (long) (qualifiers[j].high_bound + 1), | |
1041 | (long) (qualifiers[j].stride)); | |
1042 | ||
1043 | else | |
1044 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1045 | ||
1046 | p2 += strlen (p2); | |
1047 | strcpy (p2, "] of "); | |
1048 | p2 += sizeof ("] of ")-1; | |
1049 | } | |
1050 | } | |
1051 | break; | |
1052 | } | |
1053 | } | |
1054 | } | |
1055 | ||
1056 | strcpy (p2, buffer1); | |
1057 | return buffer2; | |
1058 | } | |
1059 | ||
1060 | /* Print information about an ECOFF symbol. */ | |
1061 | ||
1062 | static void | |
1063 | DEFUN (ecoff_print_symbol, (abfd, filep, symbol, how), | |
1064 | bfd *abfd AND | |
1065 | PTR filep AND | |
1066 | asymbol *symbol AND | |
1067 | bfd_print_symbol_type how) | |
1068 | { | |
1069 | FILE *file = (FILE *)filep; | |
1070 | ||
1071 | switch (how) | |
1072 | { | |
1073 | case bfd_print_symbol_name: | |
1074 | fprintf (file, "%s", symbol->name); | |
1075 | break; | |
1076 | case bfd_print_symbol_more: | |
1077 | if (ecoffsymbol (symbol)->local) | |
1078 | { | |
1079 | SYMR ecoff_sym; | |
1080 | ||
1081 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1082 | &ecoff_sym); | |
1083 | fprintf (file, "ecoff local %lx %x %x", | |
1084 | (unsigned long) ecoff_sym.value, | |
1085 | (unsigned) ecoff_sym.st, (unsigned) ecoff_sym.sc); | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | EXTR ecoff_ext; | |
1090 | ||
1091 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1092 | &ecoff_ext); | |
1093 | fprintf (file, "ecoff extern %lx %x %x", | |
1094 | (unsigned long) ecoff_ext.asym.value, | |
1095 | (unsigned) ecoff_ext.asym.st, | |
1096 | (unsigned) ecoff_ext.asym.sc); | |
1097 | } | |
1098 | break; | |
1099 | case bfd_print_symbol_nm: | |
1100 | { | |
1101 | CONST char *section_name = symbol->section->name; | |
1102 | ||
1103 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
1104 | fprintf (file, " %-5s %s %s", | |
1105 | section_name, | |
1106 | ecoffsymbol (symbol)->local ? "l" : "e", | |
1107 | symbol->name); | |
1108 | } | |
1109 | break; | |
1110 | case bfd_print_symbol_all: | |
1111 | /* Print out the symbols in a reasonable way */ | |
1112 | { | |
515c4292 ILT |
1113 | char type; |
1114 | int pos; | |
1115 | EXTR ecoff_ext; | |
1116 | char jmptbl; | |
1117 | char cobol_main; | |
1118 | char weakext; | |
1119 | ||
1120 | if (ecoffsymbol (symbol)->local) | |
1121 | { | |
1122 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1123 | &ecoff_ext.asym); | |
1124 | type = 'l'; | |
1125 | pos = (ecoffsymbol (symbol)->native.lnative | |
1126 | - ecoff_data (abfd)->external_sym | |
1127 | + ecoff_data (abfd)->symbolic_header.iextMax); | |
1128 | jmptbl = ' '; | |
1129 | cobol_main = ' '; | |
1130 | weakext = ' '; | |
1131 | } | |
1132 | else | |
1133 | { | |
1134 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1135 | &ecoff_ext); | |
1136 | type = 'e'; | |
1137 | pos = (ecoffsymbol (symbol)->native.enative | |
1138 | - ecoff_data (abfd)->external_ext); | |
1139 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1140 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1141 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1142 | } | |
1143 | ||
1144 | fprintf (file, "[%3d] %c %lx st %x sc %x indx %x %c%c%c %s", | |
1145 | pos, type, (unsigned long) ecoff_ext.asym.value, | |
1146 | (unsigned) ecoff_ext.asym.st, | |
1147 | (unsigned) ecoff_ext.asym.sc, | |
1148 | (unsigned) ecoff_ext.asym.index, | |
1149 | jmptbl, cobol_main, weakext, | |
1150 | symbol->name); | |
1151 | ||
1152 | if (ecoffsymbol (symbol)->fdr != NULL | |
1153 | && ecoff_ext.asym.index != indexNil) | |
1154 | { | |
1155 | unsigned indx; | |
1156 | int bigendian; | |
1157 | long sym_base; | |
1158 | union aux_ext *aux_base; | |
1159 | ||
1160 | indx = ecoff_ext.asym.index; | |
1161 | ||
1162 | /* sym_base is used to map the fdr relative indices which | |
1163 | appear in the file to the position number which we are | |
1164 | using. */ | |
1165 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1166 | if (ecoffsymbol (symbol)->local) | |
1167 | sym_base += ecoff_data (abfd)->symbolic_header.iextMax; | |
1168 | ||
1169 | /* aux_base is the start of the aux entries for this file; | |
1170 | asym.index is an offset from this. */ | |
1171 | aux_base = (ecoff_data (abfd)->external_aux | |
1172 | + ecoffsymbol (symbol)->fdr->iauxBase); | |
1173 | ||
1174 | /* The aux entries are stored in host byte order; the | |
1175 | order is indicated by a bit in the fdr. */ | |
1176 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1177 | ||
1178 | /* This switch is basically from gcc/mips-tdump.c */ | |
1179 | switch (ecoff_ext.asym.st) | |
1180 | { | |
1181 | case stNil: | |
1182 | case stLabel: | |
1183 | break; | |
1184 | ||
1185 | case stFile: | |
1186 | case stBlock: | |
1187 | printf ("\n End+1 symbol: %ld", indx + sym_base); | |
1188 | break; | |
1189 | ||
1190 | case stEnd: | |
1191 | if (ecoff_ext.asym.sc == scText | |
1192 | || ecoff_ext.asym.sc == scInfo) | |
1193 | printf ("\n First symbol: %ld", indx + sym_base); | |
1194 | else | |
1195 | printf ("\n First symbol: %ld", | |
1196 | (AUX_GET_ISYM (bigendian, | |
1197 | &aux_base[ecoff_ext.asym.index]) | |
1198 | + sym_base)); | |
1199 | break; | |
1200 | ||
1201 | case stProc: | |
1202 | case stStaticProc: | |
1203 | if (MIPS_IS_STAB (&ecoff_ext.asym)) | |
1204 | ; | |
1205 | else if (ecoffsymbol (symbol)->local) | |
1206 | printf ("\n End+1 symbol: %-7ld Type: %s", | |
1207 | (AUX_GET_ISYM (bigendian, | |
1208 | &aux_base[ecoff_ext.asym.index]) | |
1209 | + sym_base), | |
1210 | type_to_string (abfd, aux_base, indx + 1, | |
1211 | bigendian)); | |
1212 | else | |
b6bef862 ILT |
1213 | printf ("\n Local symbol: %d", |
1214 | (indx | |
1215 | + sym_base | |
1216 | + ecoff_data (abfd)->symbolic_header.iextMax)); | |
515c4292 ILT |
1217 | break; |
1218 | ||
1219 | default: | |
1220 | if (!MIPS_IS_STAB (&ecoff_ext.asym)) | |
1221 | printf ("\n Type: %s", | |
1222 | type_to_string (abfd, aux_base, indx, bigendian)); | |
1223 | break; | |
1224 | } | |
1225 | } | |
1226 | } | |
1227 | break; | |
1228 | } | |
1229 | } | |
1230 | \f | |
b6bef862 ILT |
1231 | /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in |
1232 | external form. They use a bit which indicates whether the symbol | |
1233 | is external. */ | |
1234 | ||
1235 | /* Swap a reloc in. */ | |
1236 | ||
1237 | static void | |
1238 | DEFUN (ecoff_swap_reloc_in, (abfd, ext, intern), | |
1239 | bfd *abfd AND | |
1240 | RELOC *ext AND | |
1241 | struct internal_reloc *intern) | |
1242 | { | |
1243 | intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr); | |
1244 | if (abfd->xvec->header_byteorder_big_p != false) | |
1245 | { | |
1246 | intern->r_symndx = ((ext->r_bits[0] | |
1247 | << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) | |
1248 | | (ext->r_bits[1] | |
1249 | << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) | |
1250 | | (ext->r_bits[2] | |
1251 | << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); | |
1252 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) | |
1253 | >> RELOC_BITS3_TYPE_SH_BIG); | |
1254 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; | |
1255 | } | |
1256 | else | |
1257 | { | |
1258 | intern->r_symndx = ((ext->r_bits[0] | |
1259 | << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) | |
1260 | | (ext->r_bits[1] | |
1261 | << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) | |
1262 | | (ext->r_bits[2] | |
1263 | << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); | |
1264 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) | |
1265 | >> RELOC_BITS3_TYPE_SH_LITTLE); | |
1266 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | /* Swap a reloc out. */ | |
1271 | ||
1272 | static unsigned int | |
1273 | DEFUN (ecoff_swap_reloc_out, (abfd, src, dst), | |
1274 | bfd *abfd AND | |
1275 | PTR src AND | |
1276 | PTR dst) | |
1277 | { | |
1278 | struct internal_reloc *intern = (struct internal_reloc *) src; | |
1279 | RELOC *ext = (RELOC *) dst; | |
1280 | ||
1281 | bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr); | |
1282 | if (abfd->xvec->header_byteorder_big_p != false) | |
1283 | { | |
1284 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; | |
1285 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; | |
1286 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; | |
1287 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) | |
1288 | & RELOC_BITS3_TYPE_BIG) | |
1289 | | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); | |
1290 | } | |
1291 | else | |
1292 | { | |
1293 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; | |
1294 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; | |
1295 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; | |
1296 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) | |
1297 | & RELOC_BITS3_TYPE_LITTLE) | |
1298 | | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); | |
1299 | } | |
1300 | ||
1301 | return RELSZ; | |
1302 | } | |
1303 | ||
1304 | /* Do a REFHI relocation. The next reloc must be the corresponding | |
1305 | REFLO. This has to be done in a function so that carry is handled | |
1306 | correctly. */ | |
1307 | ||
1308 | static bfd_reloc_status_type | |
1309 | DEFUN (ecoff_refhi_reloc, (abfd, | |
1310 | reloc_entry, | |
1311 | symbol, | |
1312 | data, | |
1313 | input_section, | |
1314 | output_bfd), | |
1315 | bfd *abfd AND | |
1316 | arelent *reloc_entry AND | |
1317 | asymbol *symbol AND | |
1318 | PTR data AND | |
1319 | asection *input_section AND | |
1320 | bfd *output_bfd) | |
1321 | { | |
1322 | bfd_reloc_status_type ret; | |
1323 | arelent *rello; | |
1324 | bfd_vma relocation; | |
1325 | asection *reloc_target_output_section; | |
1326 | unsigned long val; | |
1327 | unsigned long insn; | |
1328 | ||
1329 | ret = bfd_reloc_ok; | |
1330 | if (symbol->section == &bfd_und_section | |
1331 | && output_bfd == (bfd *) NULL) | |
1332 | ret = bfd_reloc_undefined; | |
1333 | ||
1334 | rello = reloc_entry + 1; | |
1335 | BFD_ASSERT (rello->howto->type == ECOFF_R_REFLO | |
1336 | && *rello->sym_ptr_ptr == *reloc_entry->sym_ptr_ptr); | |
1337 | ||
1338 | if (symbol->section == &bfd_com_section) | |
1339 | relocation = 0; | |
1340 | else | |
1341 | relocation = symbol->value; | |
1342 | ||
1343 | relocation += symbol->section->output_section->vma; | |
1344 | relocation += symbol->section->output_offset; | |
1345 | ||
1346 | if (reloc_entry->address > input_section->_cooked_size) | |
1347 | return bfd_reloc_outofrange; | |
1348 | ||
1349 | if (output_bfd != (bfd *) NULL) | |
1350 | reloc_entry->address += input_section->output_offset; | |
1351 | ||
1352 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1353 | val = (((insn & 0xffff) << 16) | |
1354 | + (bfd_get_32 (abfd, (bfd_byte *) data + rello->address) & 0xffff)); | |
1355 | insn = (insn &~ 0xffff) | (((val + symbol->value) >> 16) & 0xffff); | |
1356 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
1357 | ||
1358 | return ret; | |
1359 | } | |
1360 | ||
1361 | /* Do a GPREL relocation. This is a 16 bit value which must become | |
1362 | the offset from the gp register. */ | |
1363 | ||
1364 | static bfd_reloc_status_type | |
1365 | DEFUN (ecoff_gprel_reloc, (abfd, | |
1366 | reloc_entry, | |
1367 | symbol, | |
1368 | data, | |
1369 | input_section, | |
1370 | output_bfd), | |
1371 | bfd *abfd AND | |
1372 | arelent *reloc_entry AND | |
1373 | asymbol *symbol AND | |
1374 | PTR data AND | |
1375 | asection *input_section AND | |
1376 | bfd *output_bfd) | |
1377 | { | |
1378 | bfd_reloc_status_type ret; | |
1379 | bfd_vma relocation; | |
1380 | unsigned long val; | |
1381 | unsigned long insn; | |
1382 | ||
1383 | /* If this is a partial link, we don't need to do anything unusual | |
1384 | here. */ | |
1385 | if (output_bfd != (bfd *) NULL) | |
1386 | return bfd_reloc_continue; | |
1387 | ||
1388 | ret = bfd_reloc_ok; | |
1389 | if (symbol->section == &bfd_und_section) | |
1390 | ret = bfd_reloc_undefined; | |
1391 | ||
1392 | /* Otherwise we have to figure out the gp value, so that we can | |
1393 | adjust the symbol value correctly. We look up the symbol _gp in | |
1394 | the output BFD. If we can't find it, we're stuck. We cache it | |
1395 | in the ECOFF target data. */ | |
1396 | output_bfd = symbol->section->output_section->owner; | |
1397 | if (ecoff_data (output_bfd)->gp == 0) | |
1398 | { | |
1399 | unsigned int count; | |
1400 | asymbol **sym; | |
1401 | unsigned int i; | |
1402 | ||
1403 | count = bfd_get_symcount (output_bfd); | |
1404 | sym = bfd_get_outsymbols (output_bfd); | |
1405 | ||
1406 | /* We should do something more friendly here, but we don't have | |
1407 | a good reloc status to return. */ | |
1408 | if (sym == (asymbol **) NULL) | |
1409 | abort (); | |
1410 | ||
1411 | for (i = 0; i < count; i++, sym++) | |
1412 | { | |
1413 | register CONST char *name; | |
1414 | ||
1415 | name = bfd_asymbol_name (*sym); | |
1416 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1417 | { | |
1418 | ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym); | |
1419 | break; | |
1420 | } | |
1421 | } | |
1422 | ||
1423 | /* We should do something more friendly here, but we don't have | |
1424 | a good reloc status to return. */ | |
1425 | if (i >= count) | |
1426 | abort (); | |
1427 | } | |
1428 | ||
1429 | if (symbol->section == &bfd_com_section) | |
1430 | relocation = 0; | |
1431 | else | |
1432 | relocation = symbol->value; | |
1433 | ||
1434 | relocation += symbol->section->output_section->vma; | |
1435 | relocation += symbol->section->output_offset; | |
1436 | ||
1437 | if (reloc_entry->address > input_section->_cooked_size) | |
1438 | return bfd_reloc_outofrange; | |
1439 | ||
1440 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1441 | val = insn & 0xffff; | |
1442 | if ((val & 0x8000) != 0) | |
1443 | val -= 0x10000; | |
1444 | val -= ecoff_data (output_bfd)->gp; | |
1445 | insn = (insn &~ 0xffff) | (val & 0xffff); | |
1446 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
1447 | ||
1448 | return ret; | |
1449 | } | |
1450 | ||
1451 | /* How to process the various relocs types. */ | |
1452 | ||
1453 | static reloc_howto_type ecoff_howto_table[] = | |
1454 | { | |
1455 | /* Reloc type 0 is ignored. The reloc reading code ensures that | |
1456 | this is a reference to the .abs section, which will cause | |
1457 | bfd_perform_relocation to do nothing. */ | |
1458 | HOWTO (ECOFF_R_IGNORE, /* type */ | |
1459 | 0, /* rightshift */ | |
1460 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1461 | 8, /* bitsize (obsolete) */ | |
1462 | false, /* pc_relative */ | |
1463 | 0, /* bitpos */ | |
1464 | false, /* absolute (obsolete) */ | |
1465 | false, /* complain_on_overflow */ | |
1466 | 0, /* special_function */ | |
1467 | "IGNORE", /* name */ | |
1468 | false, /* partial_inplace */ | |
1469 | 0, /* src_mask */ | |
1470 | 0, /* dst_mask */ | |
1471 | false), /* pcrel_offset */ | |
1472 | ||
1473 | /* A 16 bit reference to a symbol, normally from a data section. */ | |
1474 | HOWTO (ECOFF_R_REFHALF, /* type */ | |
1475 | 0, /* rightshift */ | |
1476 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1477 | 16, /* bitsize (obsolete) */ | |
1478 | false, /* pc_relative */ | |
1479 | 0, /* bitpos */ | |
1480 | false, /* absolute (obsolete) */ | |
1481 | true, /* complain_on_overflow */ | |
1482 | 0, /* special_function */ | |
1483 | "REFHALF", /* name */ | |
1484 | true, /* partial_inplace */ | |
1485 | 0xffff, /* src_mask */ | |
1486 | 0xffff, /* dst_mask */ | |
1487 | false), /* pcrel_offset */ | |
1488 | ||
1489 | /* A 32 bit reference to a symbol, normally from a data section. */ | |
1490 | HOWTO (ECOFF_R_REFWORD, /* type */ | |
1491 | 0, /* rightshift */ | |
1492 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1493 | 32, /* bitsize (obsolete) */ | |
1494 | false, /* pc_relative */ | |
1495 | 0, /* bitpos */ | |
1496 | false, /* absolute (obsolete) */ | |
1497 | true, /* complain_on_overflow */ | |
1498 | 0, /* special_function */ | |
1499 | "REFWORD", /* name */ | |
1500 | true, /* partial_inplace */ | |
1501 | 0xffffffff, /* src_mask */ | |
1502 | 0xffffffff, /* dst_mask */ | |
1503 | false), /* pcrel_offset */ | |
1504 | ||
1505 | /* A 26 bit absolute jump address. */ | |
1506 | HOWTO (ECOFF_R_JMPADDR, /* type */ | |
1507 | 2, /* rightshift */ | |
1508 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1509 | 32, /* bitsize (obsolete) */ | |
1510 | false, /* pc_relative */ | |
1511 | 0, /* bitpos */ | |
1512 | false, /* absolute (obsolete) */ | |
1513 | true, /* complain_on_overflow */ | |
1514 | 0, /* special_function */ | |
1515 | "JMPADDR", /* name */ | |
1516 | true, /* partial_inplace */ | |
1517 | 0x3ffffff, /* src_mask */ | |
1518 | 0x3ffffff, /* dst_mask */ | |
1519 | false), /* pcrel_offset */ | |
1520 | ||
1521 | /* The high 16 bits of a symbol value. Handled by the function | |
1522 | ecoff_refhi_reloc. */ | |
1523 | HOWTO (ECOFF_R_REFHI, /* type */ | |
1524 | 16, /* rightshift */ | |
1525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1526 | 32, /* bitsize (obsolete) */ | |
1527 | false, /* pc_relative */ | |
1528 | 0, /* bitpos */ | |
1529 | false, /* absolute (obsolete) */ | |
1530 | true, /* complain_on_overflow */ | |
1531 | ecoff_refhi_reloc, /* special_function */ | |
1532 | "REFHI", /* name */ | |
1533 | true, /* partial_inplace */ | |
1534 | 0xffff, /* src_mask */ | |
1535 | 0xffff, /* dst_mask */ | |
1536 | false), /* pcrel_offset */ | |
1537 | ||
1538 | /* The low 16 bits of a symbol value. */ | |
1539 | HOWTO (ECOFF_R_REFLO, /* type */ | |
1540 | 0, /* rightshift */ | |
1541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1542 | 32, /* bitsize (obsolete) */ | |
1543 | false, /* pc_relative */ | |
1544 | 0, /* bitpos */ | |
1545 | false, /* absolute (obsolete) */ | |
1546 | true, /* complain_on_overflow */ | |
1547 | 0, /* special_function */ | |
1548 | "REFLO", /* name */ | |
1549 | true, /* partial_inplace */ | |
1550 | 0xffff, /* src_mask */ | |
1551 | 0xffff, /* dst_mask */ | |
1552 | false), /* pcrel_offset */ | |
1553 | ||
1554 | /* A reference to an offset from the gp register. Handled by the | |
1555 | function ecoff_gprel_reloc. */ | |
1556 | HOWTO (ECOFF_R_GPREL, /* type */ | |
1557 | 0, /* rightshift */ | |
1558 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1559 | 32, /* bitsize (obsolete) */ | |
1560 | false, /* pc_relative */ | |
1561 | 0, /* bitpos */ | |
1562 | false, /* absolute (obsolete) */ | |
1563 | true, /* complain_on_overflow */ | |
1564 | ecoff_gprel_reloc, /* special_function */ | |
1565 | "GPREL", /* name */ | |
1566 | true, /* partial_inplace */ | |
1567 | 0xffff, /* src_mask */ | |
1568 | 0xffff, /* dst_mask */ | |
1569 | false), /* pcrel_offset */ | |
1570 | ||
1571 | /* A reference to a literal using an offset from the gp register. | |
1572 | Handled by the function ecoff_gprel_reloc. */ | |
1573 | HOWTO (ECOFF_R_LITERAL, /* type */ | |
1574 | 0, /* rightshift */ | |
1575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1576 | 32, /* bitsize (obsolete) */ | |
1577 | false, /* pc_relative */ | |
1578 | 0, /* bitpos */ | |
1579 | false, /* absolute (obsolete) */ | |
1580 | true, /* complain_on_overflow */ | |
1581 | ecoff_gprel_reloc, /* special_function */ | |
1582 | "LITERAL", /* name */ | |
1583 | true, /* partial_inplace */ | |
1584 | 0xffff, /* src_mask */ | |
1585 | 0xffff, /* dst_mask */ | |
1586 | false) /* pcrel_offset */ | |
1587 | }; | |
1588 | ||
1589 | /* Read in the relocs for a section. */ | |
1590 | ||
1591 | static boolean | |
1592 | DEFUN (ecoff_slurp_reloc_table, (abfd, section, symbols), | |
1593 | bfd *abfd AND | |
1594 | asection *section AND | |
1595 | asymbol **symbols) | |
1596 | { | |
1597 | RELOC *external_relocs; | |
1598 | arelent *internal_relocs; | |
1599 | arelent *rptr; | |
1600 | unsigned int i; | |
1601 | ||
1602 | if (section->relocation != (arelent *) NULL | |
1603 | || section->reloc_count == 0 | |
1604 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1605 | return true; | |
1606 | ||
1607 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1608 | return false; | |
1609 | ||
1610 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1611 | (sizeof (arelent) | |
1612 | * section->reloc_count)); | |
1613 | external_relocs = (RELOC *) bfd_alloc (abfd, RELSZ * section->reloc_count); | |
1614 | if (internal_relocs == (arelent *) NULL | |
1615 | || external_relocs == (RELOC *) NULL) | |
1616 | { | |
1617 | bfd_error = no_memory; | |
1618 | return false; | |
1619 | } | |
1620 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1621 | return false; | |
1622 | if (bfd_read (external_relocs, 1, RELSZ * section->reloc_count, abfd) | |
1623 | != RELSZ * section->reloc_count) | |
1624 | { | |
1625 | bfd_error = system_call_error; | |
1626 | return false; | |
1627 | } | |
1628 | ||
1629 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1630 | { | |
1631 | struct internal_reloc intern; | |
1632 | ||
1633 | ecoff_swap_reloc_in (abfd, external_relocs + i, &intern); | |
1634 | ||
1635 | if (intern.r_type < 0 || intern.r_type > ECOFF_R_LITERAL) | |
1636 | abort (); | |
1637 | ||
1638 | if (intern.r_extern) | |
1639 | { | |
1640 | /* r_symndx is an index into the external symbols. */ | |
1641 | BFD_ASSERT (intern.r_symndx >= 0 | |
1642 | && (intern.r_symndx | |
1643 | < ecoff_data (abfd)->symbolic_header.iextMax)); | |
1644 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
1645 | } | |
1646 | else | |
1647 | { | |
1648 | CONST char *sec_name; | |
1649 | asection *sec; | |
1650 | ||
1651 | /* r_symndx is a section key. */ | |
1652 | switch (intern.r_symndx) | |
1653 | { | |
1654 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1655 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1656 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1657 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1658 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1659 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1660 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1661 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1662 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
1663 | default: abort (); | |
1664 | } | |
1665 | ||
1666 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1667 | if (sec == (asection *) NULL) | |
1668 | abort (); | |
1669 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
1670 | } | |
1671 | ||
1672 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
1673 | rptr->addend = 0; | |
1674 | rptr->howto = &ecoff_howto_table[intern.r_type]; | |
1675 | ||
1676 | /* If the type is ECOFF_R_IGNORE, make sure this is a reference | |
1677 | to the absolute section so that the reloc is ignored. */ | |
1678 | if (intern.r_type == ECOFF_R_IGNORE) | |
1679 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1680 | } | |
1681 | ||
1682 | bfd_release (abfd, external_relocs); | |
1683 | ||
1684 | section->relocation = internal_relocs; | |
1685 | ||
1686 | return true; | |
1687 | } | |
1688 | ||
1689 | /* Get a canonical list of relocs. */ | |
1690 | ||
1691 | static unsigned int | |
1692 | DEFUN (ecoff_canonicalize_reloc, (abfd, section, relptr, symbols), | |
1693 | bfd *abfd AND | |
1694 | asection *section AND | |
1695 | arelent **relptr AND | |
1696 | asymbol **symbols) | |
1697 | { | |
1698 | unsigned int count; | |
1699 | ||
1700 | if (section->flags & SEC_CONSTRUCTOR) | |
1701 | { | |
1702 | arelent_chain *chain; | |
1703 | ||
1704 | /* This section has relocs made up by us, not the file, so take | |
1705 | them out of their chain and place them into the data area | |
1706 | provided. */ | |
1707 | for (count = 0, chain = section->constructor_chain; | |
1708 | count < section->reloc_count; | |
1709 | count++, chain = chain->next) | |
1710 | *relptr++ = &chain->relent; | |
1711 | } | |
1712 | else | |
1713 | { | |
1714 | arelent *tblptr; | |
1715 | ||
1716 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1717 | return 0; | |
1718 | ||
1719 | tblptr = section->relocation; | |
1720 | if (tblptr == (arelent *) NULL) | |
1721 | return 0; | |
1722 | ||
1723 | for (count = 0; count < section->reloc_count; count++) | |
1724 | *relptr++ = tblptr++; | |
1725 | } | |
1726 | ||
1727 | *relptr = (arelent *) NULL; | |
1728 | ||
1729 | return section->reloc_count; | |
1730 | } | |
1731 | \f | |
515c4292 ILT |
1732 | /* Provided a BFD, a section and an offset into the section, calculate |
1733 | and return the name of the source file and the line nearest to the | |
1734 | wanted location. */ | |
1735 | ||
1736 | static boolean | |
1737 | DEFUN (ecoff_find_nearest_line, (abfd, | |
1738 | section, | |
1739 | ignore_symbols, | |
1740 | offset, | |
1741 | filename_ptr, | |
1742 | functionname_ptr, | |
1743 | retline_ptr), | |
1744 | bfd *abfd AND | |
1745 | asection *section AND | |
1746 | asymbol **ignore_symbols AND | |
1747 | bfd_vma offset AND | |
1748 | CONST char **filename_ptr AND | |
1749 | CONST char **functionname_ptr AND | |
1750 | unsigned int *retline_ptr) | |
1751 | { | |
1752 | FDR *fdr_ptr; | |
1753 | FDR *fdr_start; | |
1754 | FDR *fdr_end; | |
1755 | FDR *fdr_hold; | |
1756 | struct pdr_ext *pdr_ptr; | |
1757 | struct pdr_ext *pdr_end; | |
1758 | PDR pdr; | |
1759 | unsigned char *line_ptr; | |
1760 | unsigned char *line_end; | |
1761 | int lineno; | |
1762 | SYMR proc_sym; | |
1763 | ||
1764 | /* If we're not in the .text section, we don't have any line | |
1765 | numbers. */ | |
1766 | if (strcmp (section->name, _TEXT) != 0) | |
1767 | return false; | |
1768 | ||
8fa0d3a0 ILT |
1769 | /* Make sure we have the FDR's. */ |
1770 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1771 | || bfd_get_symcount (abfd) == 0) | |
1772 | return false; | |
1773 | ||
515c4292 ILT |
1774 | /* Each file descriptor (FDR) has a memory address. Here we track |
1775 | down which FDR we want. The FDR's are stored in increasing | |
1776 | memory order. If speed is ever important, this can become a | |
1777 | binary search. We must ignore FDR's with no PDR entries; they | |
1778 | will have the adr of the FDR before or after them. */ | |
1779 | fdr_start = ecoff_data (abfd)->fdr; | |
1780 | fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; | |
1781 | fdr_hold = (FDR *) NULL; | |
1782 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
1783 | { | |
1784 | if (offset < fdr_ptr->adr) | |
1785 | break; | |
1786 | if (fdr_ptr->cpd > 0) | |
1787 | fdr_hold = fdr_ptr; | |
1788 | } | |
1789 | if (fdr_hold == (FDR *) NULL) | |
1790 | return false; | |
1791 | fdr_ptr = fdr_hold; | |
1792 | ||
1793 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
1794 | have an address, which is relative to the FDR address, and are | |
1795 | also stored in increasing memory order. */ | |
1796 | offset -= fdr_ptr->adr; | |
1797 | pdr_ptr = ecoff_data (abfd)->external_pdr + fdr_ptr->ipdFirst; | |
1798 | pdr_end = pdr_ptr + fdr_ptr->cpd; | |
1799 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
1800 | if (offset < pdr.adr) | |
1801 | return false; | |
1802 | for (pdr_ptr++; pdr_ptr < pdr_end; pdr_ptr++) | |
1803 | { | |
1804 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
1805 | if (offset < pdr.adr) | |
1806 | break; | |
1807 | } | |
1808 | ||
1809 | /* Now we can look for the actual line number. The line numbers are | |
1810 | stored in a very funky format, which I won't try to describe. | |
1811 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
1812 | we want; we need this to compute line_end. */ | |
1813 | line_end = ecoff_data (abfd)->line; | |
1814 | if (pdr_ptr == pdr_end) | |
1815 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
1816 | else | |
1817 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
1818 | ||
1819 | /* Now change pdr and pdr_ptr to the one we want. */ | |
1820 | pdr_ptr--; | |
1821 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
1822 | ||
1823 | offset -= pdr.adr; | |
1824 | lineno = pdr.lnLow; | |
1825 | line_ptr = (ecoff_data (abfd)->line | |
1826 | + fdr_ptr->cbLineOffset | |
1827 | + pdr.cbLineOffset); | |
1828 | while (line_ptr < line_end) | |
1829 | { | |
1830 | int delta; | |
1831 | int count; | |
1832 | ||
1833 | delta = *line_ptr >> 4; | |
1834 | if (delta >= 0x8) | |
1835 | delta -= 0x10; | |
1836 | count = (*line_ptr & 0xf) + 1; | |
1837 | ++line_ptr; | |
1838 | if (delta == -8) | |
1839 | { | |
1840 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
1841 | if (delta >= 0x8000) | |
1842 | delta -= 0x10000; | |
1843 | line_ptr += 2; | |
1844 | } | |
1845 | lineno += delta; | |
1846 | if (offset < count * 4) | |
1847 | break; | |
1848 | offset -= count * 4; | |
1849 | } | |
1850 | ||
1851 | /* If offset is too large, this line is not interesting. */ | |
1852 | if (offset > 100) | |
1853 | return false; | |
1854 | ||
1855 | *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; | |
1856 | ecoff_swap_sym_in (abfd, | |
1857 | (ecoff_data (abfd)->external_sym | |
1858 | + fdr_ptr->isymBase | |
1859 | + pdr.isym), | |
1860 | &proc_sym); | |
1861 | *functionname_ptr = ecoff_data (abfd)->ss + proc_sym.iss; | |
1862 | *retline_ptr = lineno; | |
1863 | return true; | |
1864 | } | |
1865 | \f | |
8fa0d3a0 ILT |
1866 | /* We can't use the generic linking routines for ECOFF, because we |
1867 | have to handle all the debugging information. The generic link | |
1868 | routine just works out the section contents and attaches a list of | |
1869 | symbols. | |
1870 | ||
1871 | We link by looping over all the seclets. We make two passes. On | |
1872 | the first we set the actual section contents and determine the size | |
1873 | of the debugging information. On the second we accumulate the | |
1874 | debugging information and write it out. | |
1875 | ||
1876 | This currently always accumulates the debugging information, which | |
1877 | is incorrect, because it ignores the -s and -S options of the | |
1878 | linker. The linker needs to be modified to give us that | |
1879 | information in a more useful format (currently it just provides a | |
1880 | list of symbols which should appear in the output file). */ | |
1881 | ||
1882 | /* Clear the output_has_begun flag for all the input BFD's. We use it | |
1883 | to avoid linking in the debugging information for a BFD more than | |
1884 | once. */ | |
1885 | ||
1886 | static void | |
1887 | DEFUN (ecoff_clear_output_flags, (abfd), | |
1888 | bfd *abfd) | |
1889 | { | |
1890 | register asection *o; | |
1891 | register bfd_seclet_type *p; | |
1892 | ||
1893 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
1894 | for (p = o->seclets_head; | |
1895 | p != (bfd_seclet_type *) NULL; | |
1896 | p = p->next) | |
1897 | if (p->type == bfd_indirect_seclet) | |
1898 | p->u.indirect.section->owner->output_has_begun = false; | |
1899 | } | |
1900 | ||
1901 | /* Handle an indirect seclet on the first pass. Set the contents of | |
1902 | the output section, and accumulate the debugging information if | |
1903 | any. */ | |
1904 | ||
1905 | static boolean | |
1906 | DEFUN (ecoff_rel, (output_bfd, seclet, output_section, data, relocateable), | |
1907 | bfd *output_bfd AND | |
1908 | bfd_seclet_type *seclet AND | |
1909 | asection *output_section AND | |
1910 | PTR data AND | |
1911 | boolean relocateable) | |
1912 | { | |
1913 | bfd *input_bfd; | |
1914 | HDRR *output_symhdr; | |
1915 | HDRR *input_symhdr; | |
1916 | ||
1917 | if ((output_section->flags & SEC_HAS_CONTENTS) | |
1918 | && !(output_section->flags & SEC_NEVER_LOAD) | |
1919 | && (output_section->flags & SEC_LOAD) | |
1920 | && seclet->size) | |
1921 | { | |
1922 | data = (PTR) bfd_get_relocated_section_contents (output_bfd, | |
1923 | seclet, | |
1924 | data, | |
1925 | relocateable); | |
1926 | if (bfd_set_section_contents (output_bfd, | |
1927 | output_section, | |
1928 | data, | |
1929 | seclet->offset, | |
1930 | seclet->size) | |
1931 | == false) | |
1932 | { | |
1933 | abort(); | |
1934 | } | |
1935 | } | |
1936 | ||
1937 | input_bfd = seclet->u.indirect.section->owner; | |
1938 | ||
1939 | /* We want to figure out how much space will be required to | |
1940 | incorporate all the debugging information from input_bfd. We use | |
1941 | the output_has_begun field to avoid adding it in more than once. | |
1942 | The actual incorporation is done in the second pass, in | |
1943 | ecoff_get_debug. The code has to parallel that code in its | |
1944 | manipulations of output_symhdr. */ | |
1945 | ||
1946 | if (input_bfd->output_has_begun) | |
1947 | return true; | |
1948 | input_bfd->output_has_begun = true; | |
1949 | ||
1950 | output_symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
1951 | ||
1952 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
1953 | { | |
1954 | asymbol **symbols; | |
1955 | asymbol **sym_ptr; | |
1956 | asymbol **sym_end; | |
1957 | ||
1958 | /* We just accumulate symbols from a non-ECOFF BFD. */ | |
1959 | ||
1960 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
1961 | get_symtab_upper_bound (input_bfd)); | |
1962 | if (symbols == (asymbol **) NULL) | |
1963 | { | |
1964 | bfd_error = no_memory; | |
1965 | return false; | |
1966 | } | |
1967 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
1968 | ||
1969 | for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) | |
1970 | { | |
1971 | size_t len; | |
1972 | ||
1973 | len = strlen ((*sym_ptr)->name); | |
1974 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
1975 | { | |
1976 | ++output_symhdr->isymMax; | |
1977 | output_symhdr->issMax += len + 1; | |
1978 | } | |
1979 | else | |
1980 | { | |
1981 | ++output_symhdr->iextMax; | |
1982 | output_symhdr->issExtMax += len + 1; | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | bfd_release (output_bfd, (PTR) symbols); | |
1987 | ||
1988 | ++output_symhdr->ifdMax; | |
1989 | ||
1990 | return true; | |
1991 | } | |
1992 | ||
1993 | /* We simply add in the information from another ECOFF BFD. First | |
1994 | we make sure we have the symbolic information. */ | |
1995 | if (ecoff_slurp_symbolic_info (input_bfd) == false) | |
1996 | return false; | |
1997 | if (bfd_get_symcount (input_bfd) == 0) | |
1998 | return true; | |
1999 | ||
2000 | input_symhdr = &ecoff_data (input_bfd)->symbolic_header; | |
2001 | ||
2002 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2003 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2004 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2005 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2006 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2007 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2008 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2009 | output_symhdr->issMax += input_symhdr->issMax; | |
2010 | output_symhdr->issExtMax += input_symhdr->issExtMax; | |
2011 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2012 | output_symhdr->iextMax += input_symhdr->iextMax; | |
2013 | ||
2014 | /* The RFD's are special, since we create them if needed. */ | |
2015 | if (input_symhdr->crfd > 0) | |
2016 | output_symhdr->crfd += input_symhdr->crfd; | |
2017 | else | |
2018 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2019 | ||
2020 | return true; | |
2021 | } | |
2022 | ||
2023 | /* Handle an arbitrary seclet on the first pass. */ | |
2024 | ||
2025 | static boolean | |
2026 | DEFUN (ecoff_dump_seclet, (abfd, seclet, section, data, relocateable), | |
2027 | bfd *abfd AND | |
2028 | bfd_seclet_type *seclet AND | |
2029 | asection *section AND | |
2030 | PTR data AND | |
2031 | boolean relocateable) | |
2032 | { | |
2033 | switch (seclet->type) | |
2034 | { | |
2035 | case bfd_indirect_seclet: | |
2036 | /* The contents of this section come from another one somewhere | |
2037 | else. */ | |
2038 | return ecoff_rel (abfd, seclet, section, data, relocateable); | |
2039 | ||
2040 | case bfd_fill_seclet: | |
2041 | /* Fill in the section with us. */ | |
2042 | { | |
2043 | char *d = (char *) bfd_alloc (abfd, seclet->size); | |
2044 | unsigned int i; | |
2045 | boolean ret; | |
2046 | ||
2047 | for (i = 0; i < seclet->size; i+=2) | |
2048 | d[i] = seclet->u.fill.value >> 8; | |
2049 | for (i = 1; i < seclet->size; i+=2) | |
2050 | d[i] = seclet->u.fill.value; | |
2051 | ret = bfd_set_section_contents (abfd, section, d, seclet->offset, | |
2052 | seclet->size); | |
2053 | bfd_release (abfd, (PTR) d); | |
2054 | return ret; | |
2055 | } | |
2056 | ||
2057 | default: | |
2058 | abort(); | |
2059 | } | |
2060 | ||
2061 | return true; | |
2062 | } | |
2063 | ||
2064 | /* Add a string to the debugging information we are accumulating for a | |
2065 | file. Return the offset from the fdr string base or from the | |
2066 | external string base. */ | |
2067 | ||
2068 | static long | |
2069 | DEFUN (ecoff_add_string, (output_bfd, fdr, string, external), | |
2070 | bfd *output_bfd AND | |
2071 | FDR *fdr AND | |
2072 | CONST char *string AND | |
2073 | boolean external) | |
2074 | { | |
2075 | HDRR *symhdr; | |
2076 | size_t len; | |
2077 | long ret; | |
2078 | ||
2079 | symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2080 | len = strlen (string); | |
2081 | if (external) | |
2082 | { | |
2083 | strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); | |
2084 | ret = symhdr->issExtMax; | |
2085 | symhdr->issExtMax += len + 1; | |
2086 | } | |
2087 | else | |
2088 | { | |
2089 | strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); | |
2090 | ret = fdr->cbSs; | |
2091 | symhdr->issMax += len + 1; | |
2092 | fdr->cbSs += len + 1; | |
2093 | } | |
2094 | return ret; | |
2095 | } | |
2096 | ||
2097 | /* Accumulate the debugging information from an input section. */ | |
2098 | ||
2099 | static boolean | |
2100 | DEFUN (ecoff_get_debug, (output_bfd, seclet, section), | |
2101 | bfd *output_bfd AND | |
2102 | bfd_seclet_type *seclet AND | |
2103 | asection *section) | |
2104 | { | |
2105 | bfd *input_bfd; | |
2106 | HDRR *output_symhdr; | |
2107 | HDRR *input_symhdr; | |
2108 | ecoff_data_type *output_ecoff; | |
2109 | ecoff_data_type *input_ecoff; | |
2110 | FDR *fdr_ptr; | |
2111 | FDR *fdr_end; | |
2112 | struct fdr_ext *fdr_out; | |
2113 | struct ext_ext *ext_ptr; | |
2114 | struct ext_ext *ext_end; | |
2115 | struct ext_ext *ext_out; | |
2116 | long iss; | |
2117 | long isym; | |
2118 | long iline; | |
2119 | long iopt; | |
2120 | long ipdr; | |
2121 | long iaux; | |
2122 | long irfd; | |
2123 | long cbline; | |
2124 | ||
2125 | input_bfd = seclet->u.indirect.section->owner; | |
2126 | ||
2127 | /* Don't get the information more than once. */ | |
2128 | if (input_bfd->output_has_begun) | |
2129 | return true; | |
2130 | input_bfd->output_has_begun = true; | |
2131 | ||
2132 | output_ecoff = ecoff_data (output_bfd); | |
2133 | output_symhdr = &output_ecoff->symbolic_header; | |
2134 | ||
2135 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2136 | { | |
2137 | FDR fdr; | |
2138 | asymbol **symbols; | |
2139 | asymbol **sym_ptr; | |
2140 | asymbol **sym_end; | |
2141 | ||
2142 | /* This is not an ECOFF BFD. Just gather the symbols. */ | |
2143 | ||
2144 | memset (&fdr, 0, sizeof fdr); | |
2145 | ||
2146 | fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; | |
2147 | fdr.issBase = output_symhdr->issMax; | |
2148 | fdr.cbSs = 0; | |
2149 | fdr.rss = ecoff_add_string (output_bfd, | |
2150 | &fdr, | |
2151 | bfd_get_filename (input_bfd), | |
2152 | false); | |
2153 | fdr.isymBase = output_symhdr->isymMax; | |
2154 | ||
2155 | /* Get the symbols from the input BFD. */ | |
2156 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2157 | get_symtab_upper_bound (input_bfd)); | |
2158 | if (symbols == (asymbol **) NULL) | |
2159 | { | |
2160 | bfd_error = no_memory; | |
2161 | return false; | |
2162 | } | |
2163 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2164 | ||
2165 | /* Handle the local symbols. */ | |
2166 | fdr.csym = 0; | |
2167 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2168 | { | |
2169 | SYMR internal_sym; | |
2170 | ||
2171 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) | |
2172 | continue; | |
2173 | memset (&internal_sym, 0, sizeof internal_sym); | |
2174 | internal_sym.iss = ecoff_add_string (output_bfd, | |
2175 | &fdr, | |
2176 | (*sym_ptr)->name, | |
2177 | false); | |
2178 | internal_sym.value = (*sym_ptr)->value; | |
2179 | internal_sym.st = stNil; | |
2180 | internal_sym.sc = scUndefined; | |
2181 | internal_sym.index = indexNil; | |
2182 | ecoff_swap_sym_out (output_bfd, &internal_sym, | |
2183 | (output_ecoff->external_sym | |
2184 | + output_symhdr->isymMax)); | |
2185 | ++fdr.csym; | |
2186 | ++output_symhdr->isymMax; | |
2187 | } | |
2188 | ||
2189 | /* Handle the external symbols. */ | |
2190 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2191 | { | |
2192 | EXTR internal_ext; | |
2193 | ||
2194 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
2195 | continue; | |
2196 | memset (&internal_ext, 0, sizeof internal_ext); | |
2197 | internal_ext.ifd = output_symhdr->ifdMax; | |
2198 | internal_ext.asym.iss = ecoff_add_string (output_bfd, | |
2199 | &fdr, | |
2200 | (*sym_ptr)->name, | |
2201 | true); | |
2202 | internal_ext.asym.value = (*sym_ptr)->value; | |
2203 | internal_ext.asym.st = stNil; | |
2204 | internal_ext.asym.sc = scUndefined; | |
2205 | internal_ext.asym.reserved = 0; | |
2206 | internal_ext.asym.index = indexNil; | |
2207 | ecoff_swap_ext_out (output_bfd, &internal_ext, | |
2208 | (output_ecoff->external_ext | |
2209 | + output_symhdr->iextMax)); | |
2210 | ++output_symhdr->iextMax; | |
2211 | } | |
2212 | ||
2213 | bfd_release (output_bfd, (PTR) symbols); | |
2214 | ||
2215 | /* Leave everything else zeroed out. This will cause the lang | |
2216 | field to be langC. The fBigendian field will indicate little | |
2217 | endian format, but it doesn't matter because it only applies | |
2218 | to aux fields and there are none. */ | |
2219 | ||
2220 | ecoff_swap_fdr_out (output_bfd, &fdr, | |
2221 | (output_ecoff->external_fdr | |
2222 | + output_symhdr->ifdMax)); | |
2223 | ++output_symhdr->ifdMax; | |
2224 | return true; | |
2225 | } | |
2226 | ||
2227 | /* This is an ECOFF BFD. We want to grab the information from | |
2228 | input_bfd and attach it to output_bfd. */ | |
2229 | if (bfd_get_symcount (input_bfd) == 0) | |
2230 | return true; | |
2231 | input_ecoff = ecoff_data (input_bfd); | |
2232 | input_symhdr = &input_ecoff->symbolic_header; | |
2233 | ||
2234 | /* Because ECOFF uses relative pointers for most of the debugging | |
2235 | information, much of it can simply be copied from input_bfd to | |
2236 | output_bfd. */ | |
2237 | memcpy (output_ecoff->line + output_symhdr->cbLineOffset, | |
2238 | input_ecoff->line, | |
2239 | input_symhdr->cbLine * sizeof (unsigned char)); | |
2240 | memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, | |
2241 | input_ecoff->external_aux, | |
2242 | input_symhdr->iauxMax * sizeof (union aux_ext)); | |
2243 | memcpy (output_ecoff->ss + output_symhdr->issMax, | |
2244 | input_ecoff->ss, | |
2245 | input_symhdr->issMax * sizeof (char)); | |
2246 | memcpy (output_ecoff->ssext + output_symhdr->issExtMax, | |
2247 | input_ecoff->ssext, | |
2248 | input_symhdr->issExtMax * sizeof (char)); | |
2249 | ||
2250 | /* Some of the information may need to be swapped. */ | |
2251 | if (output_bfd->xvec->byteorder_big_p == input_bfd->xvec->byteorder_big_p) | |
2252 | { | |
2253 | /* The two BFD's have the same endianness, so memcpy will | |
2254 | suffice. */ | |
2255 | memcpy (output_ecoff->external_dnr + output_symhdr->idnMax, | |
2256 | input_ecoff->external_dnr, | |
2257 | input_symhdr->idnMax * sizeof (struct dnr_ext)); | |
2258 | memcpy (output_ecoff->external_pdr + output_symhdr->ipdMax, | |
2259 | input_ecoff->external_pdr, | |
2260 | input_symhdr->ipdMax * sizeof (struct pdr_ext)); | |
2261 | memcpy (output_ecoff->external_sym + output_symhdr->isymMax, | |
2262 | input_ecoff->external_sym, | |
2263 | input_symhdr->isymMax * sizeof (struct sym_ext)); | |
2264 | memcpy (output_ecoff->external_opt + output_symhdr->ioptMax, | |
2265 | input_ecoff->external_opt, | |
2266 | input_symhdr->ioptMax * sizeof (struct opt_ext)); | |
2267 | } | |
2268 | else | |
2269 | { | |
2270 | struct dnr_ext *dnr_in; | |
2271 | struct dnr_ext *dnr_end; | |
2272 | struct dnr_ext *dnr_out; | |
2273 | struct pdr_ext *pdr_in; | |
2274 | struct pdr_ext *pdr_end; | |
2275 | struct pdr_ext *pdr_out; | |
2276 | struct sym_ext *sym_in; | |
2277 | struct sym_ext *sym_end; | |
2278 | struct sym_ext *sym_out; | |
2279 | struct opt_ext *opt_in; | |
2280 | struct opt_ext *opt_end; | |
2281 | struct opt_ext *opt_out; | |
2282 | ||
2283 | /* The two BFD's have different endianness, so we must swap | |
2284 | everything in and out. This code would always work, but it | |
2285 | would be very slow in the normal case. */ | |
2286 | dnr_in = input_ecoff->external_dnr; | |
2287 | dnr_end = dnr_in + input_symhdr->idnMax; | |
2288 | dnr_out = output_ecoff->external_dnr + output_symhdr->idnMax; | |
2289 | for (; dnr_in < dnr_end; dnr_in++, dnr_out++) | |
2290 | { | |
2291 | DNR dnr; | |
2292 | ||
2293 | ecoff_swap_dnr_in (input_bfd, dnr_in, &dnr); | |
2294 | ecoff_swap_dnr_out (output_bfd, &dnr, dnr_out); | |
2295 | } | |
2296 | pdr_in = input_ecoff->external_pdr; | |
2297 | pdr_end = pdr_in + input_symhdr->ipdMax; | |
2298 | pdr_out = output_ecoff->external_pdr + output_symhdr->ipdMax; | |
2299 | for (; pdr_in < pdr_end; pdr_in++, pdr_out++) | |
2300 | { | |
2301 | PDR pdr; | |
2302 | ||
2303 | ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr); | |
2304 | ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out); | |
2305 | } | |
2306 | sym_in = input_ecoff->external_sym; | |
2307 | sym_end = sym_in + input_symhdr->isymMax; | |
2308 | sym_out = output_ecoff->external_sym + output_symhdr->isymMax; | |
2309 | for (; sym_in < sym_end; sym_in++, sym_out++) | |
2310 | { | |
2311 | SYMR sym; | |
2312 | ||
2313 | ecoff_swap_sym_in (input_bfd, sym_in, &sym); | |
2314 | ecoff_swap_sym_out (output_bfd, &sym, sym_out); | |
2315 | } | |
2316 | opt_in = input_ecoff->external_opt; | |
2317 | opt_end = opt_in + input_symhdr->ioptMax; | |
2318 | opt_out = output_ecoff->external_opt + output_symhdr->ioptMax; | |
2319 | for (; opt_in < opt_end; opt_in++, opt_out++) | |
2320 | { | |
2321 | OPTR opt; | |
2322 | ||
2323 | ecoff_swap_opt_in (input_bfd, opt_in, &opt); | |
2324 | ecoff_swap_opt_out (output_bfd, &opt, opt_out); | |
2325 | } | |
2326 | } | |
2327 | ||
2328 | /* Step through the FDR's of input_bfd, adjust the offsets, and | |
2329 | swap them out. */ | |
2330 | iss = output_symhdr->issMax; | |
2331 | isym = output_symhdr->isymMax; | |
2332 | iline = output_symhdr->ilineMax; | |
2333 | iopt = output_symhdr->ioptMax; | |
2334 | ipdr = output_symhdr->ipdMax; | |
2335 | iaux = output_symhdr->iauxMax; | |
2336 | irfd = output_symhdr->crfd; | |
2337 | cbline = output_symhdr->cbLineOffset; | |
2338 | ||
2339 | fdr_ptr = input_ecoff->fdr; | |
2340 | fdr_end = fdr_ptr + input_symhdr->ifdMax; | |
2341 | fdr_out = output_ecoff->external_fdr + output_symhdr->ifdMax; | |
2342 | for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out++) | |
2343 | { | |
2344 | FDR fdr; | |
2345 | ||
2346 | fdr = *fdr_ptr; | |
2347 | ||
2348 | /* The memory address for this fdr is the address for the seclet | |
2349 | plus the offset to this fdr within input_bfd. */ | |
2350 | fdr.adr = (bfd_get_section_vma (output_bfd, section) | |
2351 | + seclet->offset | |
2352 | + (fdr_ptr->adr - input_ecoff->fdr->adr)); | |
2353 | ||
2354 | fdr.issBase = iss; | |
2355 | iss += fdr.cbSs * sizeof (char); | |
2356 | fdr.isymBase = isym; | |
2357 | isym += fdr.csym * sizeof (struct sym_ext); | |
2358 | fdr.ilineBase = iline; | |
2359 | iline += fdr.cline; | |
2360 | fdr.ioptBase = iopt; | |
2361 | iopt += fdr.copt * sizeof (struct opt_ext); | |
2362 | fdr.ipdFirst = ipdr; | |
2363 | ipdr += fdr.cpd * sizeof (struct pdr_ext); | |
2364 | fdr.iauxBase = iaux; | |
2365 | iaux += fdr.caux * sizeof (union aux_ext); | |
2366 | fdr.rfdBase = irfd; | |
2367 | irfd += fdr.crfd * sizeof (struct rfd_ext); | |
2368 | fdr.cbLineOffset = cbline; | |
2369 | cbline += fdr.cbLine * sizeof (unsigned char); | |
2370 | ||
2371 | ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out); | |
2372 | } | |
2373 | ||
2374 | if (input_symhdr->crfd > 0) | |
2375 | { | |
2376 | struct rfd_ext *rfd_in; | |
2377 | struct rfd_ext *rfd_end; | |
2378 | struct rfd_ext *rfd_out; | |
2379 | ||
2380 | /* Swap and adjust the RFD's. RFD's are only created by the | |
2381 | linker, so this will only be necessary if one of the input | |
2382 | files is the result of a partial link. Presumably all | |
2383 | necessary RFD's are present. */ | |
2384 | rfd_in = input_ecoff->external_rfd; | |
2385 | rfd_end = rfd_in + input_symhdr->crfd; | |
2386 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2387 | for (; rfd_in < rfd_end; rfd_in++, rfd_out++) | |
2388 | { | |
2389 | RFDT rfd; | |
2390 | ||
2391 | ecoff_swap_rfd_in (input_bfd, rfd_in, &rfd); | |
2392 | rfd += output_symhdr->ifdMax; | |
2393 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2394 | } | |
2395 | output_symhdr->crfd += input_symhdr->crfd; | |
2396 | } | |
2397 | else | |
2398 | { | |
2399 | struct rfd_ext *rfd_out; | |
2400 | struct rfd_ext *rfd_end; | |
2401 | RFDT rfd; | |
2402 | ||
2403 | /* Create RFD's. Some of the debugging information includes | |
2404 | relative file indices. These indices are taken as indices to | |
2405 | the RFD table if there is one, or to the global table if | |
2406 | there is not. If we did not create RFD's, we would have to | |
2407 | parse and adjust all the debugging information which contains | |
2408 | file indices. */ | |
2409 | rfd = output_symhdr->ifdMax; | |
2410 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2411 | rfd_end = rfd_out + input_symhdr->ifdMax; | |
2412 | for (; rfd_out < rfd_end; rfd_out++, rfd++) | |
2413 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2414 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2415 | } | |
2416 | ||
2417 | /* We have to swap the external symbols in and out because we have | |
2418 | to adjust the file descriptor indices. */ | |
2419 | ext_ptr = input_ecoff->external_ext; | |
2420 | ext_end = ext_ptr + input_symhdr->iextMax; | |
2421 | ext_out = output_ecoff->external_ext + output_symhdr->iextMax; | |
2422 | for (; ext_ptr < ext_end; ext_ptr++, ext_out++) | |
2423 | { | |
2424 | EXTR ext; | |
2425 | ||
2426 | ecoff_swap_ext_in (input_bfd, ext_ptr, &ext); | |
2427 | ext.ifd += output_symhdr->ifdMax; | |
2428 | ecoff_swap_ext_out (output_bfd, &ext, ext_out); | |
2429 | } | |
2430 | ||
2431 | /* Update the counts. */ | |
2432 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2433 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2434 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2435 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2436 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2437 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2438 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2439 | output_symhdr->issMax += input_symhdr->issMax; | |
2440 | output_symhdr->issExtMax += input_symhdr->issExtMax; | |
2441 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2442 | output_symhdr->iextMax += input_symhdr->iextMax; | |
2443 | ||
2444 | /* Double check that the counts we got by stepping through the FDR's | |
2445 | match the counts we got from input_symhdr. */ | |
2446 | BFD_ASSERT (output_symhdr->issMax == iss | |
2447 | && output_symhdr->isymMax == isym | |
2448 | && output_symhdr->ilineMax == iline | |
2449 | && output_symhdr->ioptMax == iopt | |
2450 | && output_symhdr->ipdMax == ipdr | |
2451 | && output_symhdr->iauxMax == iaux | |
2452 | && output_symhdr->cbLineOffset == cbline); | |
2453 | ||
2454 | return true; | |
2455 | } | |
2456 | ||
2457 | /* This is the actual link routine. It makes two passes over all the | |
2458 | seclets. */ | |
2459 | ||
2460 | static boolean | |
2461 | DEFUN (ecoff_bfd_seclet_link, (abfd, data, relocateable), | |
2462 | bfd *abfd AND | |
2463 | PTR data AND | |
2464 | boolean relocateable) | |
2465 | { | |
2466 | HDRR *symhdr; | |
2467 | int ipass; | |
2468 | register asection *o; | |
2469 | register bfd_seclet_type *p; | |
2470 | bfd_size_type size; | |
2471 | char *raw; | |
2472 | ||
2473 | /* We accumulate the debugging information counts in the symbolic | |
2474 | header. */ | |
2475 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
2476 | symhdr->ilineMax = 0; | |
2477 | symhdr->cbLine = 0; | |
2478 | symhdr->idnMax = 0; | |
2479 | symhdr->ipdMax = 0; | |
2480 | symhdr->isymMax = 0; | |
2481 | symhdr->ioptMax = 0; | |
2482 | symhdr->iauxMax = 0; | |
2483 | symhdr->issMax = 0; | |
2484 | symhdr->issExtMax = 0; | |
2485 | symhdr->ifdMax = 0; | |
2486 | symhdr->crfd = 0; | |
2487 | symhdr->iextMax = 0; | |
2488 | ||
2489 | /* We are only going to look at each input BFD once. It is | |
2490 | convenient to look at the code section first, so that the first | |
2491 | time we look at a BFD we can set the text address (otherwise, | |
2492 | when we get to the text section, we would have to be able to | |
2493 | track down the file information associated with that BFD). So we | |
2494 | actually do each pass in two sub passes; first the code sections, | |
2495 | then the non-code sections. */ | |
2496 | ||
2497 | /* Do the first pass: set the output section contents and count the | |
2498 | debugging information. */ | |
2499 | ecoff_clear_output_flags (abfd); | |
2500 | for (ipass = 0; ipass < 2; ipass++) | |
2501 | { | |
2502 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2503 | { | |
2504 | /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, | |
2505 | so they are done on pass 0. For other sections the | |
2506 | expression is true, so they are done on pass 1. */ | |
2507 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2508 | continue; | |
2509 | ||
2510 | for (p = o->seclets_head; | |
2511 | p != (bfd_seclet_type *) NULL; | |
2512 | p = p->next) | |
2513 | { | |
2514 | if (ecoff_dump_seclet (abfd, p, o, data, relocateable) | |
2515 | == false) | |
2516 | return false; | |
2517 | } | |
2518 | } | |
2519 | } | |
2520 | ||
2521 | /* Now the counts in symhdr are the correct size for the debugging | |
2522 | information. We allocate the right amount of space, and reset | |
2523 | the counts so that the second pass can use them as indices. It | |
2524 | would be possible to output the debugging information directly to | |
2525 | the file in pass 2, rather than to build it in memory and then | |
2526 | write it out. Outputting to the file would require a lot of | |
2527 | seeks and small writes, though, and I think this approach is | |
2528 | faster. */ | |
2529 | size = (symhdr->cbLine * sizeof (unsigned char) | |
2530 | + symhdr->idnMax * sizeof (struct dnr_ext) | |
2531 | + symhdr->ipdMax * sizeof (struct pdr_ext) | |
2532 | + symhdr->isymMax * sizeof (struct sym_ext) | |
2533 | + symhdr->ioptMax * sizeof (struct opt_ext) | |
2534 | + symhdr->iauxMax * sizeof (union aux_ext) | |
2535 | + symhdr->issMax * sizeof (char) | |
2536 | + symhdr->issExtMax * sizeof (char) | |
2537 | + symhdr->ifdMax * sizeof (struct fdr_ext) | |
2538 | + symhdr->crfd * sizeof (struct rfd_ext) | |
2539 | + symhdr->iextMax * sizeof (struct ext_ext)); | |
2540 | raw = (char *) bfd_alloc (abfd, size); | |
2541 | if (raw == (char *) NULL) | |
2542 | { | |
2543 | bfd_error = no_memory; | |
2544 | return false; | |
2545 | } | |
2546 | ecoff_data (abfd)->raw_size = size; | |
2547 | ecoff_data (abfd)->raw_syments = (PTR) raw; | |
2548 | ||
2549 | /* Initialize the raw pointers. */ | |
2550 | #define SET(field, count, type) \ | |
2551 | ecoff_data (abfd)->field = (type *) raw; \ | |
2552 | raw += symhdr->count * sizeof (type) | |
2553 | ||
2554 | SET (line, cbLine, unsigned char); | |
2555 | SET (external_dnr, idnMax, struct dnr_ext); | |
2556 | SET (external_pdr, ipdMax, struct pdr_ext); | |
2557 | SET (external_sym, isymMax, struct sym_ext); | |
2558 | SET (external_opt, ioptMax, struct opt_ext); | |
2559 | SET (external_aux, iauxMax, union aux_ext); | |
2560 | SET (ss, issMax, char); | |
2561 | SET (ssext, issExtMax, char); | |
2562 | SET (external_fdr, ifdMax, struct fdr_ext); | |
2563 | SET (external_rfd, crfd, struct rfd_ext); | |
2564 | SET (external_ext, iextMax, struct ext_ext); | |
2565 | #undef SET | |
2566 | ||
2567 | /* Reset the counts so the second pass can use them to know how far | |
2568 | it has gotten. */ | |
2569 | symhdr->ilineMax = 0; | |
2570 | symhdr->cbLine = 0; | |
2571 | symhdr->idnMax = 0; | |
2572 | symhdr->ipdMax = 0; | |
2573 | symhdr->isymMax = 0; | |
2574 | symhdr->ioptMax = 0; | |
2575 | symhdr->iauxMax = 0; | |
2576 | symhdr->issMax = 0; | |
2577 | symhdr->issExtMax = 0; | |
2578 | symhdr->ifdMax = 0; | |
2579 | symhdr->crfd = 0; | |
2580 | symhdr->iextMax = 0; | |
2581 | ||
2582 | /* Do the second pass: accumulate the debugging information. */ | |
2583 | ecoff_clear_output_flags (abfd); | |
2584 | for (ipass = 0; ipass < 2; ipass++) | |
2585 | { | |
2586 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2587 | { | |
2588 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2589 | continue; | |
2590 | for (p = o->seclets_head; | |
2591 | p != (bfd_seclet_type *) NULL; | |
2592 | p = p->next) | |
2593 | { | |
2594 | if (p->type == bfd_indirect_seclet) | |
2595 | { | |
2596 | if (ecoff_get_debug (abfd, p, o) == false) | |
2597 | return false; | |
2598 | } | |
2599 | } | |
2600 | } | |
2601 | } | |
2602 | ||
2603 | return true; | |
2604 | } | |
2605 | \f | |
2606 | /* Set the architecture. The only architecture we support here is | |
2607 | mips. We set the architecture anyhow, since many callers ignore | |
2608 | the return value. */ | |
2609 | ||
2610 | static boolean | |
2611 | DEFUN (ecoff_set_arch_mach, (abfd, arch, machine), | |
2612 | bfd *abfd AND | |
2613 | enum bfd_architecture arch AND | |
2614 | unsigned long machine) | |
2615 | { | |
2616 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2617 | return arch == bfd_arch_mips; | |
2618 | } | |
2619 | ||
2620 | /* Calculate the file position for each section, and set | |
2621 | reloc_filepos. */ | |
2622 | ||
2623 | static void | |
2624 | DEFUN (ecoff_compute_section_file_positions, (abfd), | |
2625 | bfd *abfd) | |
2626 | { | |
2627 | asection *current; | |
2628 | asection *previous; | |
2629 | file_ptr sofar; | |
2630 | file_ptr old_sofar; | |
2631 | ||
2632 | sofar = FILHSZ; | |
2633 | ||
2634 | if (bfd_get_start_address (abfd)) | |
2635 | { | |
2636 | /* A start address may have been added to the original file. In | |
2637 | this case it will need an optional header to record it. */ | |
2638 | abfd->flags |= EXEC_P; | |
2639 | } | |
2640 | ||
2641 | if (abfd->flags & EXEC_P) | |
2642 | sofar += AOUTSZ; | |
2643 | ||
2644 | sofar += abfd->section_count * SCNHSZ; | |
2645 | ||
2646 | previous = (asection *) NULL; | |
2647 | for (current = abfd->sections; | |
2648 | current != (asection *) NULL; | |
2649 | current = current->next) | |
2650 | { | |
2651 | /* Only deal with sections which have contents */ | |
2652 | if (! (current->flags & SEC_HAS_CONTENTS)) | |
2653 | continue; | |
2654 | ||
2655 | /* Align the sections in the file to the same boundary on | |
2656 | which they are aligned in virtual memory. */ | |
2657 | old_sofar = sofar; | |
2658 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2659 | if (previous != (asection *) NULL) | |
2660 | previous->_raw_size += sofar - old_sofar; | |
2661 | ||
2662 | current->filepos = sofar; | |
2663 | ||
2664 | sofar += current->_raw_size; | |
2665 | ||
2666 | /* make sure that this section is of the right size too */ | |
2667 | old_sofar = sofar; | |
2668 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2669 | current->_raw_size += sofar - old_sofar; | |
2670 | previous = current; | |
2671 | } | |
2672 | ||
2673 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2674 | } | |
2675 | ||
2676 | /* Set the contents of a section. */ | |
2677 | ||
2678 | static boolean | |
2679 | DEFUN (ecoff_set_section_contents, (abfd, section, location, offset, count), | |
2680 | bfd *abfd AND | |
b6bef862 | 2681 | asection *section AND |
8fa0d3a0 ILT |
2682 | PTR location AND |
2683 | file_ptr offset AND | |
2684 | bfd_size_type count) | |
2685 | { | |
2686 | if (abfd->output_has_begun == false) | |
2687 | ecoff_compute_section_file_positions (abfd); | |
2688 | ||
2689 | bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); | |
2690 | ||
2691 | if (count != 0) | |
2692 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
2693 | ||
2694 | return true; | |
2695 | } | |
2696 | ||
2697 | /* Write out an ECOFF file. */ | |
2698 | ||
2699 | static boolean | |
2700 | DEFUN (ecoff_write_object_contents, (abfd), | |
2701 | bfd *abfd) | |
2702 | { | |
2703 | asection *current; | |
2704 | unsigned int count; | |
2705 | file_ptr scn_base; | |
2706 | file_ptr reloc_base; | |
2707 | file_ptr sym_base; | |
2708 | unsigned long reloc_size; | |
2709 | unsigned long text_size; | |
2710 | unsigned long text_start; | |
2711 | unsigned long data_size; | |
2712 | unsigned long data_start; | |
2713 | unsigned long bss_size; | |
2714 | struct internal_filehdr internal_f; | |
2715 | struct internal_aouthdr internal_a; | |
2716 | ||
2717 | bfd_error = system_call_error; | |
2718 | ||
2719 | if(abfd->output_has_begun == false) | |
2720 | ecoff_compute_section_file_positions(abfd); | |
2721 | ||
2722 | if (abfd->sections != (asection *) NULL) | |
2723 | scn_base = abfd->sections->filepos; | |
2724 | else | |
2725 | scn_base = 0; | |
2726 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2727 | ||
2728 | count = 1; | |
2729 | reloc_size = 0; | |
2730 | for (current = abfd->sections; | |
2731 | current != (asection *)NULL; | |
2732 | current = current->next) | |
2733 | { | |
2734 | current->target_index = count; | |
2735 | ++count; | |
2736 | if (current->reloc_count != 0) | |
2737 | { | |
2738 | bfd_size_type relsize; | |
2739 | ||
2740 | current->rel_filepos = reloc_base; | |
2741 | relsize = current->reloc_count * RELSZ; | |
2742 | reloc_size += relsize; | |
2743 | reloc_base += relsize; | |
2744 | } | |
2745 | else | |
2746 | current->rel_filepos = 0; | |
2747 | } | |
2748 | ||
2749 | sym_base = reloc_base + reloc_size; | |
2750 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2751 | ||
2752 | text_size = 0; | |
2753 | text_start = 0; | |
2754 | data_size = 0; | |
2755 | data_start = 0; | |
2756 | bss_size = 0; | |
2757 | ||
2758 | /* Write section headers to the file. */ | |
2759 | ||
2760 | internal_f.f_nscns = 0; | |
2761 | if (bfd_seek (abfd, | |
2762 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
2763 | (FILHSZ + AOUTSZ) : FILHSZ), | |
2764 | SEEK_SET) != 0) | |
2765 | return false; | |
2766 | for (current = abfd->sections; | |
2767 | current != (asection *) NULL; | |
2768 | current = current->next) | |
2769 | { | |
2770 | struct internal_scnhdr section; | |
2771 | bfd_vma vma; | |
2772 | ||
2773 | ++internal_f.f_nscns; | |
2774 | ||
2775 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2776 | ||
2777 | /* FIXME: is this correct for shared libraries? I think it is | |
2778 | but I have no platform to check. Ian Lance Taylor. */ | |
2779 | vma = bfd_get_section_vma (abfd, current); | |
2780 | if (strcmp (current->name, _LIB) == 0) | |
2781 | section.s_vaddr = 0; | |
2782 | else | |
2783 | section.s_vaddr = vma; | |
2784 | ||
2785 | section.s_paddr = vma; | |
2786 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2787 | ||
2788 | /* If this section has no size or is unloadable then the scnptr | |
2789 | will be 0 too. */ | |
2790 | if (current->_raw_size == 0 | |
2791 | || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2792 | section.s_scnptr = 0; | |
2793 | else | |
2794 | section.s_scnptr = current->filepos; | |
2795 | section.s_relptr = current->rel_filepos; | |
2796 | ||
2797 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2798 | object file produced by the assembler is supposed to point to | |
2799 | information about how much room is required by objects of | |
2800 | various different sizes. I think this only matters if we | |
2801 | want the linker to compute the best size to use, or | |
2802 | something. I don't know what happens if the information is | |
2803 | not present. */ | |
2804 | section.s_lnnoptr = 0; | |
2805 | ||
2806 | section.s_nreloc = current->reloc_count; | |
2807 | section.s_nlnno = 0; | |
2808 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
2809 | ||
2810 | { | |
2811 | SCNHDR buff; | |
2812 | ||
2813 | ecoff_swap_scnhdr_out (abfd, (PTR) §ion, (PTR) &buff); | |
2814 | if (bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) | |
2815 | return false; | |
2816 | } | |
2817 | ||
2818 | /* FIXME: These numbers don't add up to what the MIPS tools | |
2819 | produce, although I don't think it matters. */ | |
2820 | if ((section.s_flags & STYP_TEXT) != 0 | |
2821 | || (section.s_flags & STYP_RDATA) != 0 | |
2822 | || (section.s_flags & STYP_LIT8) != 0 | |
2823 | || (section.s_flags & STYP_LIT4) != 0) | |
2824 | { | |
2825 | text_size += bfd_get_section_size_before_reloc (current); | |
2826 | if (text_start == 0 || text_start > vma) | |
2827 | text_start = vma; | |
2828 | } | |
2829 | else if ((section.s_flags & STYP_DATA) != 0 | |
2830 | || (section.s_flags & STYP_SDATA) != 0) | |
2831 | { | |
2832 | data_size += bfd_get_section_size_before_reloc (current); | |
2833 | if (data_start == 0 || data_start > vma) | |
2834 | data_start = vma; | |
2835 | } | |
2836 | else if ((section.s_flags & STYP_BSS) != 0 | |
2837 | || (section.s_flags & STYP_SBSS) != 0) | |
2838 | bss_size += bfd_get_section_size_before_reloc (current); | |
2839 | } | |
2840 | ||
2841 | /* Set up the file header. */ | |
2842 | ||
2843 | internal_f.f_magic = MIPS_MAGIC_2; | |
2844 | ||
2845 | /* | |
2846 | We will NOT put a fucking timestamp in the header here. Every time you | |
2847 | put it back, I will come in and take it out again. I'm sorry. This | |
2848 | field does not belong here. We fill it with a 0 so it compares the | |
2849 | same but is not a reasonable time. -- gnu@cygnus.com | |
2850 | */ | |
2851 | internal_f.f_timdat = 0; | |
2852 | ||
2853 | internal_f.f_nsyms = bfd_get_symcount(abfd); | |
2854 | if (internal_f.f_nsyms != 0) | |
2855 | internal_f.f_symptr = sym_base; | |
2856 | else | |
2857 | internal_f.f_symptr = 0; | |
2858 | ||
2859 | if (abfd->flags & EXEC_P) | |
2860 | internal_f.f_opthdr = AOUTSZ; | |
2861 | else | |
2862 | internal_f.f_opthdr = 0; | |
2863 | ||
2864 | internal_f.f_flags = 0; | |
2865 | if (reloc_size == 0) | |
2866 | internal_f.f_flags |= F_RELFLG; | |
2867 | if (bfd_get_symcount (abfd) == 0) | |
2868 | internal_f.f_flags |= F_LSYMS; | |
2869 | if (abfd->flags & EXEC_P) | |
2870 | internal_f.f_flags |= F_EXEC; | |
2871 | ||
2872 | if (! abfd->xvec->byteorder_big_p) | |
2873 | internal_f.f_flags |= F_AR32WR; | |
2874 | else | |
2875 | internal_f.f_flags |= F_AR32W; | |
2876 | ||
2877 | /* Set up the optional header. */ | |
2878 | ||
2879 | if ((abfd->flags & EXEC_P) != 0) | |
2880 | { | |
2881 | internal_a.magic = ZMAGIC; | |
2882 | ||
2883 | /* FIXME: What should this be? */ | |
2884 | internal_a.vstamp = 0; | |
2885 | ||
2886 | internal_a.tsize = text_size; | |
2887 | internal_a.text_start = text_start; | |
2888 | internal_a.dsize = data_size; | |
2889 | internal_a.data_start = data_start; | |
2890 | internal_a.bsize = bss_size; | |
2891 | ||
2892 | internal_a.entry = bfd_get_start_address (abfd); | |
2893 | ||
2894 | /* FIXME: The MIPS optional header is larger than this.... */ | |
2895 | } | |
2896 | ||
2897 | /* Write out the file header and the optional header. */ | |
2898 | ||
2899 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
2900 | return false; | |
2901 | ||
2902 | { | |
2903 | FILHDR buff; | |
2904 | ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff); | |
2905 | if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ) | |
2906 | return false; | |
2907 | } | |
2908 | ||
2909 | if ((abfd->flags & EXEC_P) != 0) | |
2910 | { | |
2911 | AOUTHDR buff; | |
2912 | ||
2913 | ecoff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
2914 | if (bfd_write ((PTR) &buff, 1, AOUTSZ, abfd) != AOUTSZ) | |
2915 | return false; | |
2916 | } | |
2917 | ||
2918 | /* Write out the relocs. */ | |
2919 | ||
2920 | /* Write out the symbolic debugging information. */ | |
2921 | if (bfd_get_symcount (abfd) > 0) | |
2922 | { | |
2923 | struct hdr_ext buff; | |
2924 | ||
2925 | ecoff_swap_hdr_out (abfd, &ecoff_data (abfd)->symbolic_header, &buff); | |
2926 | if (bfd_write ((PTR) &buff, 1, sizeof buff, abfd) != sizeof buff) | |
2927 | return false; | |
2928 | if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, | |
2929 | ecoff_data (abfd)->raw_size, abfd) | |
2930 | != ecoff_data (abfd)->raw_size) | |
2931 | return false; | |
2932 | } | |
2933 | ||
2934 | return true; | |
2935 | } | |
2936 | \f | |
515c4292 ILT |
2937 | static CONST bfd_coff_backend_data bfd_ecoff_std_swap_table = { |
2938 | (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */ | |
2939 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */ | |
2940 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */ | |
2941 | (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */ | |
2942 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */ | |
2943 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */ | |
2944 | ecoff_swap_reloc_out, ecoff_swap_filehdr_out, ecoff_swap_aouthdr_out, | |
2945 | ecoff_swap_scnhdr_out, | |
2946 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true, | |
2947 | ecoff_swap_filehdr_in, ecoff_swap_aouthdr_in, ecoff_swap_scnhdr_in, | |
2948 | ecoff_bad_format_hook, ecoff_set_arch_mach_hook, ecoff_mkobject_hook, | |
2949 | styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook, | |
2950 | ecoff_slurp_symbol_table | |
2951 | }; | |
2952 | ||
515c4292 ILT |
2953 | /* get_lineno could be written for ECOFF, but it would currently only |
2954 | be useful for linking ECOFF and COFF files together, which doesn't | |
2955 | seem too likely. */ | |
8fa0d3a0 ILT |
2956 | #define ecoff_get_lineno \ |
2957 | ((alent *(*) PARAMS ((bfd *, asymbol *))) bfd_nullvoidptr) | |
515c4292 ILT |
2958 | |
2959 | #define ecoff_core_file_failing_command _bfd_dummy_core_file_failing_command | |
2960 | #define ecoff_core_file_failing_signal _bfd_dummy_core_file_failing_signal | |
2961 | #define ecoff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p | |
2962 | #define ecoff_slurp_armap bfd_slurp_coff_armap | |
2963 | #define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table | |
2964 | #define ecoff_write_armap coff_write_armap | |
2965 | #define ecoff_truncate_arname bfd_dont_truncate_arname | |
2966 | #define ecoff_openr_next_archived_file bfd_generic_openr_next_archived_file | |
2967 | #define ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
2968 | #define ecoff_get_section_contents bfd_generic_get_section_contents | |
8fa0d3a0 | 2969 | #define ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound |
515c4292 | 2970 | #define ecoff_close_and_cleanup bfd_generic_close_and_cleanup |
8fa0d3a0 | 2971 | #define ecoff_sizeof_headers coff_sizeof_headers |
515c4292 | 2972 | #define ecoff_bfd_debug_info_start bfd_void |
8fa0d3a0 | 2973 | #define ecoff_bfd_debug_info_end bfd_void |
515c4292 | 2974 | #define ecoff_bfd_debug_info_accumulate \ |
8fa0d3a0 | 2975 | ((void (*) PARAMS ((bfd *, struct sec *))) bfd_void) |
515c4292 ILT |
2976 | #define ecoff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
2977 | #define ecoff_bfd_relax_section bfd_generic_relax_section | |
c9301d7b | 2978 | |
1327fb29 | 2979 | bfd_target ecoff_little_vec = |
294eaca4 SC |
2980 | { |
2981 | "ecoff-littlemips", /* name */ | |
515c4292 | 2982 | bfd_target_ecoff_flavour, |
294eaca4 SC |
2983 | false, /* data byte order is little */ |
2984 | false, /* header byte order is little */ | |
2985 | ||
2986 | (HAS_RELOC | EXEC_P | /* object flags */ | |
2987 | HAS_LINENO | HAS_DEBUG | | |
2988 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
2989 | ||
2990 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect | |
2991 | flags */ | |
2992 | 0, /* leading underscore */ | |
2993 | '/', /* ar_pad_char */ | |
2994 | 15, /* ar_max_namelen */ | |
2995 | 3, /* minimum alignment power */ | |
2996 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */ | |
2997 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */ | |
2998 | ||
515c4292 | 2999 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
294eaca4 | 3000 | bfd_generic_archive_p, _bfd_dummy_target}, |
515c4292 | 3001 | {bfd_false, ecoff_mkobject, bfd_false, /* bfd_set_format */ |
294eaca4 | 3002 | bfd_false}, |
515c4292 ILT |
3003 | {bfd_false, ecoff_write_object_contents, bfd_false, bfd_false}, |
3004 | JUMP_TABLE (ecoff), | |
3005 | 0, 0, | |
3006 | (PTR) &bfd_ecoff_std_swap_table | |
3007 | }; | |
1327fb29 SC |
3008 | |
3009 | bfd_target ecoff_big_vec = | |
294eaca4 SC |
3010 | { |
3011 | "ecoff-bigmips", /* name */ | |
515c4292 | 3012 | bfd_target_ecoff_flavour, |
294eaca4 SC |
3013 | true, /* data byte order is big */ |
3014 | true, /* header byte order is big */ | |
3015 | ||
3016 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3017 | HAS_LINENO | HAS_DEBUG | | |
3018 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
3019 | ||
3020 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */ | |
3021 | 0, /* leading underscore */ | |
3022 | ' ', /* ar_pad_char */ | |
3023 | 16, /* ar_max_namelen */ | |
3024 | 3, /* minimum alignment power */ | |
3025 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3026 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3027 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
3028 | bfd_generic_archive_p, _bfd_dummy_target}, | |
515c4292 | 3029 | {bfd_false, ecoff_mkobject, bfd_false, /* bfd_set_format */ |
294eaca4 | 3030 | bfd_false}, |
515c4292 | 3031 | {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */ |
294eaca4 | 3032 | bfd_false, bfd_false}, |
515c4292 ILT |
3033 | JUMP_TABLE(ecoff), |
3034 | 0, 0, | |
3035 | (PTR) &bfd_ecoff_std_swap_table | |
3036 | /* Note that there is another bfd_target just above this one. If | |
3037 | you are adding initializers here, you should be adding them there | |
3038 | as well. */ | |
3039 | }; |