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" |
c3fe0c41 ILT |
26 | #include "aout/ar.h" |
27 | #include "aout/ranlib.h" | |
294eaca4 SC |
28 | #include "coff/mips.h" |
29 | #include "coff/internal.h" | |
515c4292 ILT |
30 | #include "coff/sym.h" |
31 | #include "coff/symconst.h" | |
32 | #include "coff/ecoff-ext.h" | |
33 | #include "libcoff.h" | |
34 | ||
35 | /* `Tdata' information kept for ECOFF files. */ | |
36 | ||
37 | #define ecoff_data(abfd) ((abfd)->tdata.ecoff_obj_data) | |
38 | ||
39 | typedef struct ecoff_tdata | |
40 | { | |
8fa0d3a0 ILT |
41 | /* The reloc file position, set by |
42 | ecoff_compute_section_file_positions. */ | |
43 | file_ptr reloc_filepos; | |
44 | ||
45 | /* The symbol table file position, set by ecoff_mkobject_hook. */ | |
515c4292 ILT |
46 | file_ptr sym_filepos; |
47 | ||
b6bef862 ILT |
48 | /* The cached gp value. This is used when relocating. */ |
49 | bfd_vma gp; | |
50 | ||
c3fe0c41 ILT |
51 | /* The register masks. When linking, all the masks found in the |
52 | input files are combined into the masks of the output file. */ | |
53 | unsigned long gprmask; | |
54 | unsigned long cprmask[4]; | |
55 | ||
8fa0d3a0 ILT |
56 | /* The size of the unswapped ECOFF symbolic information. */ |
57 | bfd_size_type raw_size; | |
58 | ||
515c4292 ILT |
59 | /* The unswapped ECOFF symbolic information. */ |
60 | PTR raw_syments; | |
61 | ||
62 | /* The swapped ECOFF symbolic header. */ | |
63 | HDRR symbolic_header; | |
64 | ||
65 | /* Pointers to the unswapped symbolic information. */ | |
66 | unsigned char *line; | |
67 | struct dnr_ext *external_dnr; | |
68 | struct pdr_ext *external_pdr; | |
69 | struct sym_ext *external_sym; | |
70 | struct opt_ext *external_opt; | |
71 | union aux_ext *external_aux; | |
72 | char *ss; | |
73 | char *ssext; | |
74 | struct fdr_ext *external_fdr; | |
75 | struct rfd_ext *external_rfd; | |
76 | struct ext_ext *external_ext; | |
77 | ||
c3fe0c41 | 78 | /* The swapped FDR information. */ |
515c4292 ILT |
79 | FDR *fdr; |
80 | ||
c3fe0c41 ILT |
81 | /* The FDR index. This is set for an input BFD to a link so that |
82 | the external symbols can set their FDR index correctly. */ | |
83 | unsigned int ifdbase; | |
84 | ||
515c4292 ILT |
85 | /* The canonical BFD symbols. */ |
86 | struct ecoff_symbol_struct *canonical_symbols; | |
87 | ||
88 | } ecoff_data_type; | |
89 | ||
90 | /* Each canonical asymbol really looks like this. */ | |
91 | ||
92 | typedef struct ecoff_symbol_struct | |
93 | { | |
94 | /* The actual symbol which the rest of BFD works with */ | |
95 | asymbol symbol; | |
96 | ||
97 | /* The fdr for this symbol. */ | |
98 | FDR *fdr; | |
99 | ||
100 | /* true if this is a local symbol rather than an external one. */ | |
101 | boolean local; | |
102 | ||
103 | /* A pointer to the unswapped hidden information for this symbol */ | |
104 | union | |
105 | { | |
106 | struct sym_ext *lnative; | |
107 | struct ext_ext *enative; | |
108 | } | |
109 | native; | |
110 | } ecoff_symbol_type; | |
111 | ||
112 | /* We take the address of the first element of a asymbol to ensure that the | |
113 | macro is only ever applied to an asymbol. */ | |
114 | #define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd))) | |
115 | ||
c3fe0c41 ILT |
116 | /* This is a hack borrowed from coffcode.h; we need to save the index |
117 | of a symbol when we write it out so that can set the symbol index | |
118 | correctly when we write out the relocs. */ | |
119 | #define ecoff_get_sym_index(symbol) ((unsigned long) (symbol)->udata) | |
120 | #define ecoff_set_sym_index(symbol, idx) ((symbol)->udata = (PTR) (idx)) | |
121 | ||
122 | /* The page boundary used to align sections in the executable file. */ | |
123 | #define PAGE_SIZE 0x2000 | |
124 | ||
515c4292 ILT |
125 | /* MIPS ECOFF has COFF sections, but the debugging information is |
126 | stored in a completely different format. This files uses the some | |
127 | of the swapping routines from coffswap.h, and some of the generic | |
128 | COFF routines in coffgen.c, but, unlike the real COFF targets, does | |
129 | not use coffcode.h itself. */ | |
130 | ||
8fa0d3a0 ILT |
131 | /* Get the generic COFF swapping routines, except for the reloc, |
132 | symbol, and lineno ones. Give them ecoff names. */ | |
c3fe0c41 | 133 | #define MIPSECOFF |
8fa0d3a0 | 134 | #define NO_COFF_RELOCS |
515c4292 ILT |
135 | #define NO_COFF_SYMBOLS |
136 | #define NO_COFF_LINENOS | |
515c4292 ILT |
137 | #define coff_swap_filehdr_in ecoff_swap_filehdr_in |
138 | #define coff_swap_filehdr_out ecoff_swap_filehdr_out | |
139 | #define coff_swap_aouthdr_in ecoff_swap_aouthdr_in | |
140 | #define coff_swap_aouthdr_out ecoff_swap_aouthdr_out | |
141 | #define coff_swap_scnhdr_in ecoff_swap_scnhdr_in | |
142 | #define coff_swap_scnhdr_out ecoff_swap_scnhdr_out | |
143 | #include "coffswap.h" | |
144 | \f | |
145 | /* This stuff is somewhat copied from coffcode.h. */ | |
146 | ||
147 | static asection bfd_debug_section = { "*DEBUG*" }; | |
148 | ||
149 | /* See whether the magic number matches. */ | |
150 | ||
151 | static boolean | |
152 | DEFUN(ecoff_bad_format_hook, (abfd, filehdr), | |
153 | bfd *abfd AND | |
154 | PTR filehdr) | |
155 | { | |
156 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
157 | ||
158 | if (ECOFFBADMAG (*internal_f)) | |
159 | return false; | |
160 | ||
161 | return true; | |
162 | } | |
163 | ||
164 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ | |
165 | ||
166 | static asection * | |
167 | DEFUN (ecoff_make_section_hook, (abfd, name), | |
168 | bfd *abfd AND | |
169 | char *name) | |
170 | { | |
171 | return (asection *) NULL; | |
172 | } | |
173 | ||
174 | /* Initialize a new section. */ | |
175 | ||
176 | static boolean | |
177 | DEFUN (ecoff_new_section_hook, (abfd, section), | |
178 | bfd *abfd AND | |
179 | asection *section) | |
180 | { | |
181 | section->alignment_power = abfd->xvec->align_power_min; | |
8fa0d3a0 ILT |
182 | |
183 | if (strcmp (section->name, _TEXT) == 0) | |
184 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
185 | else if (strcmp (section->name, _DATA) == 0 | |
186 | || strcmp (section->name, _SDATA) == 0) | |
187 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
188 | else if (strcmp (section->name, _RDATA) == 0 | |
189 | || strcmp (section->name, _LIT8) == 0 | |
190 | || strcmp (section->name, _LIT4) == 0) | |
191 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
192 | else if (strcmp (section->name, _BSS) == 0 | |
193 | || strcmp (section->name, _SBSS) == 0) | |
bf4b84bc | 194 | section->flags |= SEC_ALLOC; |
8fa0d3a0 ILT |
195 | |
196 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
197 | uncertain about .init on some systems and I don't know how shared | |
198 | libraries work. */ | |
199 | ||
515c4292 ILT |
200 | return true; |
201 | } | |
202 | ||
203 | #define ecoff_set_alignment_hook \ | |
204 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
205 | ||
206 | static boolean | |
207 | DEFUN (ecoff_mkobject, (abfd), | |
208 | bfd *abfd) | |
209 | { | |
210 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
211 | bfd_zalloc (abfd, sizeof(ecoff_data_type))); | |
212 | if (abfd->tdata.ecoff_obj_data == NULL) | |
213 | { | |
214 | bfd_error = no_memory; | |
215 | return false; | |
216 | } | |
217 | ||
218 | return true; | |
219 | } | |
220 | ||
221 | /* Create the COFF backend specific information. */ | |
222 | ||
c3fe0c41 ILT |
223 | static PTR |
224 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
225 | bfd *abfd; | |
226 | PTR filehdr; | |
227 | PTR aouthdr; | |
515c4292 ILT |
228 | { |
229 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
c3fe0c41 | 230 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; |
515c4292 ILT |
231 | ecoff_data_type *ecoff; |
232 | ||
233 | if (ecoff_mkobject (abfd) == false) | |
234 | return NULL; | |
235 | ||
236 | ecoff = ecoff_data (abfd); | |
237 | ecoff->sym_filepos = internal_f->f_symptr; | |
c3fe0c41 ILT |
238 | |
239 | if (internal_a != (struct internal_aouthdr *) NULL) | |
240 | { | |
241 | int i; | |
242 | ||
243 | ecoff->gp = internal_a->gp_value; | |
244 | ecoff->gprmask = internal_a->gprmask; | |
245 | for (i = 0; i < 3; i++) | |
246 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
247 | } | |
248 | ||
515c4292 ILT |
249 | return (PTR) ecoff; |
250 | } | |
251 | ||
252 | /* Determine the machine architecture and type. */ | |
253 | static boolean | |
254 | DEFUN (ecoff_set_arch_mach_hook, (abfd, filehdr), | |
255 | bfd *abfd AND | |
256 | PTR filehdr) | |
257 | { | |
258 | long machine; | |
259 | enum bfd_architecture arch; | |
260 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
261 | ||
262 | machine = 0; | |
263 | switch (internal_f->f_magic) { | |
264 | case MIPS_MAGIC_1: | |
265 | case MIPS_MAGIC_2: | |
266 | case MIPS_MAGIC_3: | |
267 | arch = bfd_arch_mips; | |
268 | machine = 0; | |
269 | break; | |
270 | ||
271 | default: /* Unreadable input file type */ | |
272 | arch = bfd_arch_obscure; | |
273 | break; | |
274 | } | |
275 | ||
276 | bfd_default_set_arch_mach(abfd, arch, machine); | |
277 | return true; | |
278 | } | |
279 | ||
8fa0d3a0 ILT |
280 | /* Get the section s_flags to use for a section. */ |
281 | ||
282 | static long | |
283 | DEFUN (sec_to_styp_flags, (name, flags), | |
284 | CONST char *name AND | |
285 | flagword flags) | |
286 | { | |
287 | long styp; | |
288 | ||
289 | styp = 0; | |
290 | ||
291 | if (strcmp (name, _TEXT) == 0) | |
292 | styp = STYP_TEXT; | |
293 | else if (strcmp (name, _DATA) == 0) | |
c3fe0c41 | 294 | styp = STYP_DATA; |
8fa0d3a0 | 295 | else if (strcmp (name, _SDATA) == 0) |
c3fe0c41 | 296 | styp = STYP_SDATA; |
8fa0d3a0 ILT |
297 | else if (strcmp (name, _RDATA) == 0) |
298 | styp = STYP_RDATA; | |
299 | else if (strcmp (name, _LIT8) == 0) | |
300 | styp = STYP_LIT8; | |
301 | else if (strcmp (name, _LIT4) == 0) | |
302 | styp = STYP_LIT4; | |
303 | else if (strcmp (name, _BSS) == 0) | |
304 | styp = STYP_BSS; | |
305 | else if (strcmp (name, _SBSS) == 0) | |
306 | styp = STYP_SBSS; | |
307 | else if (flags & SEC_CODE) | |
308 | styp = STYP_TEXT; | |
309 | else if (flags & SEC_DATA) | |
310 | styp = STYP_DATA; | |
311 | else if (flags & SEC_READONLY) | |
312 | styp = STYP_RDATA; | |
313 | else if (flags & SEC_LOAD) | |
314 | styp = STYP_TEXT; | |
315 | else | |
316 | styp = STYP_BSS; | |
317 | ||
318 | if (flags & SEC_NEVER_LOAD) | |
319 | styp |= STYP_NOLOAD; | |
320 | ||
321 | return styp; | |
322 | } | |
323 | ||
515c4292 ILT |
324 | /* Get the BFD flags to use for a section. */ |
325 | ||
326 | static flagword | |
8fa0d3a0 ILT |
327 | DEFUN (styp_to_sec_flags, (abfd, hdr), |
328 | bfd *abfd AND | |
329 | PTR hdr) | |
515c4292 ILT |
330 | { |
331 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
332 | long styp_flags = internal_s->s_flags; | |
333 | flagword sec_flags=0; | |
334 | ||
335 | if (styp_flags & STYP_NOLOAD) | |
336 | sec_flags |= SEC_NEVER_LOAD; | |
337 | ||
338 | /* For 386 COFF, at least, an unloadable text or data section is | |
339 | actually a shared library section. */ | |
340 | if (styp_flags & STYP_TEXT) | |
341 | { | |
342 | if (sec_flags & SEC_NEVER_LOAD) | |
343 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
344 | else | |
345 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
346 | } | |
347 | else if ((styp_flags & STYP_DATA) | |
348 | || (styp_flags & STYP_RDATA) | |
349 | || (styp_flags & STYP_SDATA)) | |
350 | { | |
351 | if (sec_flags & SEC_NEVER_LOAD) | |
352 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
353 | else | |
354 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
355 | if (styp_flags & STYP_RDATA) | |
356 | sec_flags |= SEC_READONLY; | |
357 | } | |
358 | else if ((styp_flags & STYP_BSS) | |
359 | || (styp_flags & STYP_SBSS)) | |
360 | { | |
361 | sec_flags |= SEC_ALLOC; | |
362 | } | |
363 | else if (styp_flags & STYP_INFO) | |
364 | { | |
365 | sec_flags |= SEC_NEVER_LOAD; | |
366 | } | |
367 | else if ((styp_flags & STYP_LIT8) | |
368 | || (styp_flags & STYP_LIT4)) | |
369 | { | |
370 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
371 | } | |
372 | else | |
373 | { | |
374 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
375 | } | |
376 | ||
377 | return sec_flags; | |
378 | } | |
379 | \f | |
8fa0d3a0 ILT |
380 | /* Read in and swap the important symbolic information for an ECOFF |
381 | object file. */ | |
382 | ||
383 | static boolean | |
384 | DEFUN (ecoff_slurp_symbolic_info, (abfd), | |
385 | bfd *abfd) | |
386 | { | |
387 | struct hdr_ext external_symhdr; | |
388 | HDRR *internal_symhdr; | |
389 | bfd_size_type raw_base; | |
390 | bfd_size_type raw_size; | |
391 | PTR raw; | |
392 | struct fdr_ext *fraw_src; | |
393 | struct fdr_ext *fraw_end; | |
394 | struct fdr *fdr_ptr; | |
395 | ||
396 | /* Check whether we've already gotten it, and whether there's any to | |
397 | get. */ | |
398 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
399 | return true; | |
400 | if (ecoff_data (abfd)->sym_filepos == 0) | |
401 | { | |
402 | bfd_get_symcount (abfd) = 0; | |
403 | return true; | |
404 | } | |
405 | ||
406 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
407 | as read from the file header, but on ECOFF this is always the | |
408 | size of the symbolic information header. It would be cleaner to | |
409 | handle this when we first read the file in coffgen.c. */ | |
410 | if (bfd_get_symcount (abfd) != sizeof (external_symhdr)) | |
411 | { | |
412 | bfd_error = bad_value; | |
413 | return false; | |
414 | } | |
415 | ||
416 | /* Read the symbolic information header. */ | |
417 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
418 | || (bfd_read ((PTR) &external_symhdr, sizeof (external_symhdr), 1, abfd) | |
419 | != sizeof (external_symhdr))) | |
420 | { | |
421 | bfd_error = system_call_error; | |
422 | return false; | |
423 | } | |
424 | internal_symhdr = &ecoff_data (abfd)->symbolic_header; | |
425 | ecoff_swap_hdr_in (abfd, &external_symhdr, internal_symhdr); | |
426 | ||
427 | if (internal_symhdr->magic != magicSym) | |
428 | { | |
429 | bfd_error = bad_value; | |
430 | return false; | |
431 | } | |
432 | ||
433 | /* Now we can get the correct number of symbols. */ | |
434 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
435 | + internal_symhdr->iextMax); | |
436 | ||
c3fe0c41 | 437 | /* Read all the symbolic information at once. */ |
23ba15b7 ILT |
438 | raw_base = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); |
439 | ||
440 | if (internal_symhdr->cbExtOffset != 0) | |
441 | raw_size = (internal_symhdr->cbExtOffset | |
442 | - raw_base | |
443 | + internal_symhdr->iextMax * sizeof (struct ext_ext)); | |
444 | else | |
445 | { | |
446 | long cbline, issmax, issextmax; | |
447 | ||
448 | cbline = (internal_symhdr->cbLine + 3) &~ 4; | |
449 | issmax = (internal_symhdr->issMax + 3) &~ 4; | |
450 | issextmax = (internal_symhdr->issExtMax + 3) &~ 4; | |
451 | raw_size = (cbline * sizeof (unsigned char) | |
452 | + internal_symhdr->idnMax * sizeof (struct dnr_ext) | |
453 | + internal_symhdr->ipdMax * sizeof (struct pdr_ext) | |
454 | + internal_symhdr->isymMax * sizeof (struct sym_ext) | |
455 | + internal_symhdr->ioptMax * sizeof (struct opt_ext) | |
456 | + internal_symhdr->iauxMax * sizeof (union aux_ext) | |
457 | + issmax * sizeof (char) | |
458 | + issextmax * sizeof (char) | |
459 | + internal_symhdr->ifdMax * sizeof (struct fdr_ext) | |
460 | + internal_symhdr->crfd * sizeof (struct rfd_ext) | |
461 | + internal_symhdr->iextMax * sizeof (struct ext_ext)); | |
462 | } | |
463 | ||
c3fe0c41 ILT |
464 | if (raw_size == 0) |
465 | { | |
466 | ecoff_data (abfd)->sym_filepos = 0; | |
467 | return true; | |
468 | } | |
8fa0d3a0 ILT |
469 | raw = (PTR) bfd_alloc (abfd, raw_size); |
470 | if (raw == NULL) | |
471 | { | |
472 | bfd_error = no_memory; | |
473 | return false; | |
474 | } | |
475 | if (bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
476 | { | |
477 | bfd_error = system_call_error; | |
478 | bfd_release (abfd, raw); | |
479 | return false; | |
480 | } | |
481 | ||
482 | ecoff_data (abfd)->raw_size = raw_size; | |
483 | ecoff_data (abfd)->raw_syments = raw; | |
484 | ||
485 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
486 | #define FIX(off1, off2, type) \ | |
487 | if (internal_symhdr->off1 == 0) \ | |
488 | ecoff_data (abfd)->off2 = (type *) NULL; \ | |
489 | else \ | |
490 | ecoff_data (abfd)->off2 = (type *) ((char *) raw \ | |
491 | + internal_symhdr->off1 \ | |
492 | - raw_base) | |
493 | FIX (cbLineOffset, line, unsigned char); | |
494 | FIX (cbDnOffset, external_dnr, struct dnr_ext); | |
495 | FIX (cbPdOffset, external_pdr, struct pdr_ext); | |
496 | FIX (cbSymOffset, external_sym, struct sym_ext); | |
497 | FIX (cbOptOffset, external_opt, struct opt_ext); | |
498 | FIX (cbAuxOffset, external_aux, union aux_ext); | |
499 | FIX (cbSsOffset, ss, char); | |
500 | FIX (cbSsExtOffset, ssext, char); | |
501 | FIX (cbFdOffset, external_fdr, struct fdr_ext); | |
502 | FIX (cbRfdOffset, external_rfd, struct rfd_ext); | |
503 | FIX (cbExtOffset, external_ext, struct ext_ext); | |
504 | #undef FIX | |
505 | ||
506 | /* I don't want to always swap all the data, because it will just | |
507 | waste time and most programs will never look at it. The only | |
508 | time the linker needs most of the debugging information swapped | |
509 | is when linking big-endian and little-endian MIPS object files | |
510 | together, which is not a common occurrence. | |
511 | ||
512 | We need to look at the fdr to deal with a lot of information in | |
513 | the symbols, so we swap them here. */ | |
514 | ecoff_data (abfd)->fdr = (struct fdr *) bfd_alloc (abfd, | |
515 | (internal_symhdr->ifdMax * | |
516 | sizeof (struct fdr))); | |
517 | if (ecoff_data (abfd)->fdr == NULL) | |
518 | { | |
519 | bfd_error = no_memory; | |
520 | return false; | |
521 | } | |
522 | fdr_ptr = ecoff_data (abfd)->fdr; | |
523 | fraw_src = ecoff_data (abfd)->external_fdr; | |
524 | fraw_end = fraw_src + internal_symhdr->ifdMax; | |
525 | for (; fraw_src < fraw_end; fraw_src++, fdr_ptr++) | |
526 | ecoff_swap_fdr_in (abfd, fraw_src, fdr_ptr); | |
527 | ||
528 | return true; | |
529 | } | |
530 | \f | |
515c4292 ILT |
531 | /* ECOFF symbol table routines. The ECOFF symbol table is described |
532 | in gcc/mips-tfile.c. */ | |
533 | ||
bf4b84bc ILT |
534 | /* ECOFF uses two common sections. One is the usual one, and the |
535 | other is for small objects. All the small objects are kept | |
536 | together, and then referenced via the gp pointer, which yields | |
537 | faster assembler code. This is what we use for the small common | |
538 | section. */ | |
539 | static asection ecoff_scom_section; | |
540 | static asymbol ecoff_scom_symbol; | |
541 | static asymbol *ecoff_scom_symbol_ptr; | |
542 | ||
515c4292 ILT |
543 | /* Create an empty symbol. */ |
544 | ||
545 | static asymbol * | |
546 | DEFUN (ecoff_make_empty_symbol, (abfd), | |
547 | bfd *abfd) | |
548 | { | |
549 | ecoff_symbol_type *new; | |
550 | ||
551 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
552 | if (new == (ecoff_symbol_type *) NULL) | |
553 | { | |
554 | bfd_error = no_memory; | |
555 | return (asymbol *) NULL; | |
556 | } | |
557 | new->symbol.section = (asection *) NULL; | |
558 | new->fdr = (FDR *) NULL; | |
559 | new->local = false; | |
560 | new->native.lnative = (struct sym_ext *) NULL; | |
561 | new->symbol.the_bfd = abfd; | |
562 | return &new->symbol; | |
563 | } | |
564 | ||
565 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
566 | ||
567 | static void | |
568 | DEFUN (ecoff_set_symbol_info, (abfd, ecoff_sym, asym, ext), | |
569 | bfd *abfd AND | |
570 | SYMR *ecoff_sym AND | |
571 | asymbol *asym AND | |
572 | int ext) | |
573 | { | |
574 | asym->the_bfd = abfd; | |
575 | asym->value = ecoff_sym->value; | |
576 | asym->section = &bfd_debug_section; | |
577 | asym->udata = NULL; | |
c3fe0c41 ILT |
578 | |
579 | /* Most symbol types are just for debugging. */ | |
580 | switch (ecoff_sym->st) | |
581 | { | |
582 | case stGlobal: | |
583 | case stStatic: | |
584 | case stLabel: | |
585 | case stProc: | |
586 | case stStaticProc: | |
587 | case stBlock: | |
23ba15b7 | 588 | case stNil: |
c3fe0c41 ILT |
589 | break; |
590 | default: | |
591 | asym->flags = BSF_DEBUGGING; | |
592 | return; | |
593 | } | |
594 | ||
515c4292 ILT |
595 | if (ext) |
596 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
597 | else | |
598 | asym->flags = BSF_LOCAL; | |
599 | switch (ecoff_sym->sc) | |
600 | { | |
601 | case scNil: | |
23ba15b7 ILT |
602 | /* Used for compiler generated labels. Leave them in the |
603 | debugging section, and mark them as local. If BSF_DEBUGGING | |
604 | is set, then nm does not display them for some reason. If no | |
605 | flags are set then the linker whines about them. */ | |
606 | asym->flags = BSF_LOCAL; | |
515c4292 ILT |
607 | break; |
608 | case scText: | |
609 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
610 | asym->value -= asym->section->vma; | |
611 | break; | |
612 | case scData: | |
613 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
614 | asym->value -= asym->section->vma; | |
615 | break; | |
616 | case scBss: | |
c3fe0c41 | 617 | if (ext) |
23ba15b7 ILT |
618 | { |
619 | asym->section = &bfd_com_section; | |
620 | asym->flags = 0; | |
621 | } | |
c3fe0c41 ILT |
622 | else |
623 | { | |
624 | asym->section = bfd_make_section_old_way (abfd, ".bss"); | |
625 | asym->value -= asym->section->vma; | |
626 | } | |
515c4292 ILT |
627 | break; |
628 | case scRegister: | |
629 | asym->flags = BSF_DEBUGGING; | |
630 | break; | |
631 | case scAbs: | |
632 | asym->section = &bfd_abs_section; | |
515c4292 ILT |
633 | break; |
634 | case scUndefined: | |
635 | asym->section = &bfd_und_section; | |
23ba15b7 ILT |
636 | asym->flags = 0; |
637 | asym->value = 0; | |
515c4292 ILT |
638 | break; |
639 | case scCdbLocal: | |
640 | case scBits: | |
641 | case scCdbSystem: | |
642 | case scRegImage: | |
643 | case scInfo: | |
644 | case scUserStruct: | |
645 | asym->flags = BSF_DEBUGGING; | |
646 | break; | |
647 | case scSData: | |
648 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
649 | asym->value -= asym->section->vma; | |
650 | break; | |
651 | case scSBss: | |
382f2a3d | 652 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); |
bf4b84bc ILT |
653 | if (! ext) |
654 | asym->value -= asym->section->vma; | |
515c4292 ILT |
655 | break; |
656 | case scRData: | |
657 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
658 | asym->value -= asym->section->vma; | |
659 | break; | |
660 | case scVar: | |
661 | asym->flags = BSF_DEBUGGING; | |
662 | break; | |
663 | case scCommon: | |
515c4292 | 664 | asym->section = &bfd_com_section; |
515c4292 | 665 | break; |
382f2a3d | 666 | case scSCommon: |
bf4b84bc ILT |
667 | if (ecoff_scom_section.name == NULL) |
668 | { | |
669 | /* Initialize the small common section. */ | |
670 | ecoff_scom_section.name = "*SCOM*"; | |
671 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
672 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
673 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
674 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
675 | ecoff_scom_symbol.name = "*SCOM*"; | |
676 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
677 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
678 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
679 | } | |
680 | asym->section = &ecoff_scom_section; | |
23ba15b7 | 681 | asym->flags = 0; |
382f2a3d | 682 | break; |
515c4292 ILT |
683 | case scVarRegister: |
684 | case scVariant: | |
685 | asym->flags = BSF_DEBUGGING; | |
686 | break; | |
687 | case scSUndefined: | |
688 | asym->section = &bfd_und_section; | |
23ba15b7 ILT |
689 | asym->flags = 0; |
690 | asym->value = 0; | |
515c4292 ILT |
691 | break; |
692 | case scInit: | |
693 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
694 | asym->value -= asym->section->vma; | |
695 | break; | |
696 | case scBasedVar: | |
697 | case scXData: | |
698 | case scPData: | |
699 | asym->flags = BSF_DEBUGGING; | |
700 | break; | |
701 | case scFini: | |
702 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
703 | asym->value -= asym->section->vma; | |
704 | break; | |
705 | default: | |
515c4292 ILT |
706 | break; |
707 | } | |
708 | } | |
709 | ||
710 | /* Read an ECOFF symbol table. */ | |
711 | ||
712 | static boolean | |
713 | DEFUN (ecoff_slurp_symbol_table, (abfd), | |
714 | bfd *abfd) | |
715 | { | |
515c4292 | 716 | bfd_size_type internal_size; |
515c4292 ILT |
717 | ecoff_symbol_type *internal; |
718 | ecoff_symbol_type *internal_ptr; | |
719 | struct ext_ext *eraw_src; | |
720 | struct ext_ext *eraw_end; | |
8fa0d3a0 ILT |
721 | FDR *fdr_ptr; |
722 | FDR *fdr_end; | |
515c4292 ILT |
723 | |
724 | /* If we've already read in the symbol table, do nothing. */ | |
725 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
726 | return true; | |
727 | ||
8fa0d3a0 ILT |
728 | /* Get the symbolic information. */ |
729 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
730 | return false; | |
731 | if (bfd_get_symcount (abfd) == 0) | |
732 | return true; | |
515c4292 ILT |
733 | |
734 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
735 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
736 | if (internal == NULL) | |
737 | { | |
738 | bfd_error = no_memory; | |
739 | return false; | |
740 | } | |
741 | ||
742 | internal_ptr = internal; | |
743 | eraw_src = ecoff_data (abfd)->external_ext; | |
8fa0d3a0 | 744 | eraw_end = eraw_src + ecoff_data (abfd)->symbolic_header.iextMax; |
515c4292 ILT |
745 | for (; eraw_src < eraw_end; eraw_src++, internal_ptr++) |
746 | { | |
747 | EXTR internal_esym; | |
748 | ||
749 | ecoff_swap_ext_in (abfd, eraw_src, &internal_esym); | |
750 | internal_ptr->symbol.name = (ecoff_data (abfd)->ssext | |
751 | + internal_esym.asym.iss); | |
752 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
753 | &internal_ptr->symbol, 1); | |
754 | internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; | |
755 | internal_ptr->local = false; | |
756 | internal_ptr->native.enative = eraw_src; | |
757 | } | |
758 | ||
759 | /* The local symbols must be accessed via the fdr's, because the | |
760 | string and aux indices are relative to the fdr information. */ | |
761 | fdr_ptr = ecoff_data (abfd)->fdr; | |
8fa0d3a0 | 762 | fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; |
515c4292 ILT |
763 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
764 | { | |
765 | struct sym_ext *lraw_src; | |
766 | struct sym_ext *lraw_end; | |
767 | ||
768 | lraw_src = ecoff_data (abfd)->external_sym + fdr_ptr->isymBase; | |
769 | lraw_end = lraw_src + fdr_ptr->csym; | |
770 | for (; lraw_src < lraw_end; lraw_src++, internal_ptr++) | |
771 | { | |
772 | SYMR internal_sym; | |
773 | ||
774 | ecoff_swap_sym_in (abfd, lraw_src, &internal_sym); | |
775 | internal_ptr->symbol.name = (ecoff_data (abfd)->ss | |
776 | + fdr_ptr->issBase | |
777 | + internal_sym.iss); | |
778 | ecoff_set_symbol_info (abfd, &internal_sym, | |
779 | &internal_ptr->symbol, 0); | |
780 | internal_ptr->fdr = fdr_ptr; | |
781 | internal_ptr->local = true; | |
782 | internal_ptr->native.lnative = lraw_src; | |
783 | } | |
784 | } | |
785 | ||
786 | ecoff_data (abfd)->canonical_symbols = internal; | |
787 | ||
788 | return true; | |
789 | } | |
790 | ||
791 | static unsigned int | |
792 | DEFUN (ecoff_get_symtab_upper_bound, (abfd), | |
793 | bfd *abfd) | |
794 | { | |
8fa0d3a0 ILT |
795 | if (ecoff_slurp_symbolic_info (abfd) == false |
796 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
797 | return 0; |
798 | ||
799 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
800 | } | |
801 | ||
802 | static unsigned int | |
803 | DEFUN (ecoff_get_symtab, (abfd, alocation), | |
804 | bfd *abfd AND | |
805 | asymbol **alocation) | |
806 | { | |
807 | unsigned int counter = 0; | |
808 | ecoff_symbol_type *symbase; | |
809 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
810 | ||
8fa0d3a0 ILT |
811 | if (ecoff_slurp_symbol_table (abfd) == false |
812 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
813 | return 0; |
814 | ||
815 | symbase = ecoff_data (abfd)->canonical_symbols; | |
816 | while (counter < bfd_get_symcount (abfd)) | |
817 | { | |
818 | *(location++) = symbase++; | |
819 | counter++; | |
820 | } | |
821 | *location++ = (ecoff_symbol_type *) NULL; | |
822 | return bfd_get_symcount (abfd); | |
823 | } | |
824 | ||
825 | /* Turn ECOFF type information into a printable string. | |
826 | emit_aggregate and type_to_string are from gcc/mips-tdump.c, with | |
827 | swapping added and used_ptr removed. */ | |
828 | ||
829 | /* Write aggregate information to a string. */ | |
830 | ||
831 | static void | |
832 | DEFUN (emit_aggregate, (abfd, string, rndx, isym, which), | |
833 | bfd *abfd AND | |
834 | char *string AND | |
835 | RNDXR *rndx AND | |
836 | long isym AND | |
837 | CONST char *which) | |
838 | { | |
839 | int ifd = rndx->rfd; | |
840 | int indx = rndx->index; | |
841 | int sym_base, ss_base; | |
842 | CONST char *name; | |
843 | ||
844 | if (ifd == 0xfff) | |
845 | ifd = isym; | |
846 | ||
847 | sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; | |
848 | ss_base = ecoff_data (abfd)->fdr[ifd].issBase; | |
849 | ||
850 | if (indx == indexNil) | |
851 | name = "/* no name */"; | |
852 | else | |
853 | { | |
854 | SYMR sym; | |
855 | ||
856 | indx += sym_base; | |
857 | ecoff_swap_sym_in (abfd, | |
858 | ecoff_data (abfd)->external_sym + indx, | |
859 | &sym); | |
860 | name = ecoff_data (abfd)->ss + ss_base + sym.iss; | |
861 | } | |
862 | ||
863 | sprintf (string, | |
864 | "%s %s { ifd = %d, index = %d }", | |
865 | which, name, ifd, | |
866 | indx + ecoff_data (abfd)->symbolic_header.iextMax); | |
867 | } | |
868 | ||
869 | /* Convert the type information to string format. */ | |
870 | ||
871 | static char * | |
872 | DEFUN (type_to_string, (abfd, aux_ptr, indx, bigendian), | |
873 | bfd *abfd AND | |
874 | union aux_ext *aux_ptr AND | |
875 | int indx AND | |
876 | int bigendian) | |
877 | { | |
878 | AUXU u; | |
879 | struct qual { | |
880 | unsigned int type; | |
881 | int low_bound; | |
882 | int high_bound; | |
883 | int stride; | |
884 | } qualifiers[7]; | |
885 | ||
886 | unsigned int basic_type; | |
887 | int i; | |
888 | static char buffer1[1024]; | |
889 | static char buffer2[1024]; | |
890 | char *p1 = buffer1; | |
891 | char *p2 = buffer2; | |
892 | RNDXR rndx; | |
893 | ||
894 | for (i = 0; i < 7; i++) | |
895 | { | |
896 | qualifiers[i].low_bound = 0; | |
897 | qualifiers[i].high_bound = 0; | |
898 | qualifiers[i].stride = 0; | |
899 | } | |
900 | ||
901 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
902 | return "-1 (no type)"; | |
903 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
904 | ||
905 | basic_type = u.ti.bt; | |
906 | qualifiers[0].type = u.ti.tq0; | |
907 | qualifiers[1].type = u.ti.tq1; | |
908 | qualifiers[2].type = u.ti.tq2; | |
909 | qualifiers[3].type = u.ti.tq3; | |
910 | qualifiers[4].type = u.ti.tq4; | |
911 | qualifiers[5].type = u.ti.tq5; | |
912 | qualifiers[6].type = tqNil; | |
913 | ||
914 | /* | |
915 | * Go get the basic type. | |
916 | */ | |
917 | switch (basic_type) | |
918 | { | |
919 | case btNil: /* undefined */ | |
920 | strcpy (p1, "nil"); | |
921 | break; | |
922 | ||
923 | case btAdr: /* address - integer same size as pointer */ | |
924 | strcpy (p1, "address"); | |
925 | break; | |
926 | ||
927 | case btChar: /* character */ | |
928 | strcpy (p1, "char"); | |
929 | break; | |
930 | ||
931 | case btUChar: /* unsigned character */ | |
932 | strcpy (p1, "unsigned char"); | |
933 | break; | |
934 | ||
935 | case btShort: /* short */ | |
936 | strcpy (p1, "short"); | |
937 | break; | |
938 | ||
939 | case btUShort: /* unsigned short */ | |
940 | strcpy (p1, "unsigned short"); | |
941 | break; | |
942 | ||
943 | case btInt: /* int */ | |
944 | strcpy (p1, "int"); | |
945 | break; | |
946 | ||
947 | case btUInt: /* unsigned int */ | |
948 | strcpy (p1, "unsigned int"); | |
949 | break; | |
950 | ||
951 | case btLong: /* long */ | |
952 | strcpy (p1, "long"); | |
953 | break; | |
954 | ||
955 | case btULong: /* unsigned long */ | |
956 | strcpy (p1, "unsigned long"); | |
957 | break; | |
958 | ||
959 | case btFloat: /* float (real) */ | |
960 | strcpy (p1, "float"); | |
961 | break; | |
962 | ||
963 | case btDouble: /* Double (real) */ | |
964 | strcpy (p1, "double"); | |
965 | break; | |
966 | ||
967 | /* Structures add 1-2 aux words: | |
968 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
969 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
970 | ||
971 | case btStruct: /* Structure (Record) */ | |
972 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
973 | emit_aggregate (abfd, p1, &rndx, | |
974 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
975 | "struct"); | |
976 | indx++; /* skip aux words */ | |
977 | break; | |
978 | ||
979 | /* Unions add 1-2 aux words: | |
980 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
981 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
982 | ||
983 | case btUnion: /* Union */ | |
984 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
985 | emit_aggregate (abfd, p1, &rndx, | |
986 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
987 | "union"); | |
988 | indx++; /* skip aux words */ | |
989 | break; | |
990 | ||
991 | /* Enumerations add 1-2 aux words: | |
992 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
993 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
994 | ||
995 | case btEnum: /* Enumeration */ | |
996 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
997 | emit_aggregate (abfd, p1, &rndx, | |
998 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
999 | "enum"); | |
1000 | indx++; /* skip aux words */ | |
1001 | break; | |
1002 | ||
1003 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1004 | strcpy (p1, "typedef"); | |
1005 | break; | |
1006 | ||
1007 | case btRange: /* subrange of int */ | |
1008 | strcpy (p1, "subrange"); | |
1009 | break; | |
1010 | ||
1011 | case btSet: /* pascal sets */ | |
1012 | strcpy (p1, "set"); | |
1013 | break; | |
1014 | ||
1015 | case btComplex: /* fortran complex */ | |
1016 | strcpy (p1, "complex"); | |
1017 | break; | |
1018 | ||
1019 | case btDComplex: /* fortran double complex */ | |
1020 | strcpy (p1, "double complex"); | |
1021 | break; | |
1022 | ||
1023 | case btIndirect: /* forward or unnamed typedef */ | |
1024 | strcpy (p1, "forward/unamed typedef"); | |
1025 | break; | |
1026 | ||
1027 | case btFixedDec: /* Fixed Decimal */ | |
1028 | strcpy (p1, "fixed decimal"); | |
1029 | break; | |
1030 | ||
1031 | case btFloatDec: /* Float Decimal */ | |
1032 | strcpy (p1, "float decimal"); | |
1033 | break; | |
1034 | ||
1035 | case btString: /* Varying Length Character String */ | |
1036 | strcpy (p1, "string"); | |
1037 | break; | |
1038 | ||
1039 | case btBit: /* Aligned Bit String */ | |
1040 | strcpy (p1, "bit"); | |
1041 | break; | |
1042 | ||
1043 | case btPicture: /* Picture */ | |
1044 | strcpy (p1, "picture"); | |
1045 | break; | |
1046 | ||
1047 | case btVoid: /* Void */ | |
1048 | strcpy (p1, "void"); | |
1049 | break; | |
1050 | ||
1051 | default: | |
1052 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1053 | break; | |
1054 | } | |
1055 | ||
1056 | p1 += strlen (buffer1); | |
1057 | ||
1058 | /* | |
1059 | * If this is a bitfield, get the bitsize. | |
1060 | */ | |
1061 | if (u.ti.fBitfield) | |
1062 | { | |
1063 | int bitsize; | |
1064 | ||
1065 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1066 | sprintf (p1, " : %d", bitsize); | |
1067 | p1 += strlen (buffer1); | |
1068 | } | |
1069 | ||
1070 | ||
1071 | /* | |
1072 | * Deal with any qualifiers. | |
1073 | */ | |
1074 | if (qualifiers[0].type != tqNil) | |
1075 | { | |
1076 | /* | |
1077 | * Snarf up any array bounds in the correct order. Arrays | |
1078 | * store 5 successive words in the aux. table: | |
1079 | * word 0 RNDXR to type of the bounds (ie, int) | |
1080 | * word 1 Current file descriptor index | |
1081 | * word 2 low bound | |
1082 | * word 3 high bound (or -1 if []) | |
1083 | * word 4 stride size in bits | |
1084 | */ | |
1085 | for (i = 0; i < 7; i++) | |
1086 | { | |
1087 | if (qualifiers[i].type == tqArray) | |
1088 | { | |
1089 | qualifiers[i].low_bound = | |
1090 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1091 | qualifiers[i].high_bound = | |
1092 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1093 | qualifiers[i].stride = | |
1094 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1095 | indx += 5; | |
1096 | } | |
1097 | } | |
1098 | ||
1099 | /* | |
1100 | * Now print out the qualifiers. | |
1101 | */ | |
1102 | for (i = 0; i < 6; i++) | |
1103 | { | |
1104 | switch (qualifiers[i].type) | |
1105 | { | |
1106 | case tqNil: | |
1107 | case tqMax: | |
1108 | break; | |
1109 | ||
1110 | case tqPtr: | |
1111 | strcpy (p2, "ptr to "); | |
1112 | p2 += sizeof ("ptr to ")-1; | |
1113 | break; | |
1114 | ||
1115 | case tqVol: | |
1116 | strcpy (p2, "volatile "); | |
1117 | p2 += sizeof ("volatile ")-1; | |
1118 | break; | |
1119 | ||
1120 | case tqFar: | |
1121 | strcpy (p2, "far "); | |
1122 | p2 += sizeof ("far ")-1; | |
1123 | break; | |
1124 | ||
1125 | case tqProc: | |
1126 | strcpy (p2, "func. ret. "); | |
1127 | p2 += sizeof ("func. ret. "); | |
1128 | break; | |
1129 | ||
1130 | case tqArray: | |
1131 | { | |
1132 | int first_array = i; | |
1133 | int j; | |
1134 | ||
1135 | /* Print array bounds reversed (ie, in the order the C | |
1136 | programmer writes them). C is such a fun language.... */ | |
1137 | ||
1138 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1139 | i++; | |
1140 | ||
1141 | for (j = i; j >= first_array; j--) | |
1142 | { | |
1143 | strcpy (p2, "array ["); | |
1144 | p2 += sizeof ("array [")-1; | |
1145 | if (qualifiers[j].low_bound != 0) | |
1146 | sprintf (p2, | |
1147 | "%ld:%ld {%ld bits}", | |
1148 | (long) qualifiers[j].low_bound, | |
1149 | (long) qualifiers[j].high_bound, | |
1150 | (long) qualifiers[j].stride); | |
1151 | ||
1152 | else if (qualifiers[j].high_bound != -1) | |
1153 | sprintf (p2, | |
1154 | "%ld {%ld bits}", | |
1155 | (long) (qualifiers[j].high_bound + 1), | |
1156 | (long) (qualifiers[j].stride)); | |
1157 | ||
1158 | else | |
1159 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1160 | ||
1161 | p2 += strlen (p2); | |
1162 | strcpy (p2, "] of "); | |
1163 | p2 += sizeof ("] of ")-1; | |
1164 | } | |
1165 | } | |
1166 | break; | |
1167 | } | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | strcpy (p2, buffer1); | |
1172 | return buffer2; | |
1173 | } | |
1174 | ||
1175 | /* Print information about an ECOFF symbol. */ | |
1176 | ||
1177 | static void | |
1178 | DEFUN (ecoff_print_symbol, (abfd, filep, symbol, how), | |
1179 | bfd *abfd AND | |
1180 | PTR filep AND | |
1181 | asymbol *symbol AND | |
1182 | bfd_print_symbol_type how) | |
1183 | { | |
1184 | FILE *file = (FILE *)filep; | |
1185 | ||
1186 | switch (how) | |
1187 | { | |
1188 | case bfd_print_symbol_name: | |
1189 | fprintf (file, "%s", symbol->name); | |
1190 | break; | |
1191 | case bfd_print_symbol_more: | |
1192 | if (ecoffsymbol (symbol)->local) | |
1193 | { | |
1194 | SYMR ecoff_sym; | |
1195 | ||
1196 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1197 | &ecoff_sym); | |
1198 | fprintf (file, "ecoff local %lx %x %x", | |
1199 | (unsigned long) ecoff_sym.value, | |
1200 | (unsigned) ecoff_sym.st, (unsigned) ecoff_sym.sc); | |
1201 | } | |
1202 | else | |
1203 | { | |
1204 | EXTR ecoff_ext; | |
1205 | ||
1206 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1207 | &ecoff_ext); | |
1208 | fprintf (file, "ecoff extern %lx %x %x", | |
1209 | (unsigned long) ecoff_ext.asym.value, | |
1210 | (unsigned) ecoff_ext.asym.st, | |
1211 | (unsigned) ecoff_ext.asym.sc); | |
1212 | } | |
1213 | break; | |
1214 | case bfd_print_symbol_nm: | |
1215 | { | |
1216 | CONST char *section_name = symbol->section->name; | |
1217 | ||
1218 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
1219 | fprintf (file, " %-5s %s %s", | |
1220 | section_name, | |
1221 | ecoffsymbol (symbol)->local ? "l" : "e", | |
1222 | symbol->name); | |
1223 | } | |
1224 | break; | |
1225 | case bfd_print_symbol_all: | |
1226 | /* Print out the symbols in a reasonable way */ | |
1227 | { | |
515c4292 ILT |
1228 | char type; |
1229 | int pos; | |
1230 | EXTR ecoff_ext; | |
1231 | char jmptbl; | |
1232 | char cobol_main; | |
1233 | char weakext; | |
1234 | ||
1235 | if (ecoffsymbol (symbol)->local) | |
1236 | { | |
1237 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1238 | &ecoff_ext.asym); | |
1239 | type = 'l'; | |
1240 | pos = (ecoffsymbol (symbol)->native.lnative | |
1241 | - ecoff_data (abfd)->external_sym | |
1242 | + ecoff_data (abfd)->symbolic_header.iextMax); | |
1243 | jmptbl = ' '; | |
1244 | cobol_main = ' '; | |
1245 | weakext = ' '; | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1250 | &ecoff_ext); | |
1251 | type = 'e'; | |
1252 | pos = (ecoffsymbol (symbol)->native.enative | |
1253 | - ecoff_data (abfd)->external_ext); | |
1254 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1255 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1256 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1257 | } | |
1258 | ||
1259 | fprintf (file, "[%3d] %c %lx st %x sc %x indx %x %c%c%c %s", | |
1260 | pos, type, (unsigned long) ecoff_ext.asym.value, | |
1261 | (unsigned) ecoff_ext.asym.st, | |
1262 | (unsigned) ecoff_ext.asym.sc, | |
1263 | (unsigned) ecoff_ext.asym.index, | |
1264 | jmptbl, cobol_main, weakext, | |
1265 | symbol->name); | |
1266 | ||
1267 | if (ecoffsymbol (symbol)->fdr != NULL | |
1268 | && ecoff_ext.asym.index != indexNil) | |
1269 | { | |
1270 | unsigned indx; | |
1271 | int bigendian; | |
1272 | long sym_base; | |
1273 | union aux_ext *aux_base; | |
1274 | ||
1275 | indx = ecoff_ext.asym.index; | |
1276 | ||
1277 | /* sym_base is used to map the fdr relative indices which | |
1278 | appear in the file to the position number which we are | |
1279 | using. */ | |
1280 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1281 | if (ecoffsymbol (symbol)->local) | |
1282 | sym_base += ecoff_data (abfd)->symbolic_header.iextMax; | |
1283 | ||
1284 | /* aux_base is the start of the aux entries for this file; | |
1285 | asym.index is an offset from this. */ | |
1286 | aux_base = (ecoff_data (abfd)->external_aux | |
1287 | + ecoffsymbol (symbol)->fdr->iauxBase); | |
1288 | ||
1289 | /* The aux entries are stored in host byte order; the | |
1290 | order is indicated by a bit in the fdr. */ | |
1291 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1292 | ||
1293 | /* This switch is basically from gcc/mips-tdump.c */ | |
1294 | switch (ecoff_ext.asym.st) | |
1295 | { | |
1296 | case stNil: | |
1297 | case stLabel: | |
1298 | break; | |
1299 | ||
1300 | case stFile: | |
1301 | case stBlock: | |
1302 | printf ("\n End+1 symbol: %ld", indx + sym_base); | |
1303 | break; | |
1304 | ||
1305 | case stEnd: | |
1306 | if (ecoff_ext.asym.sc == scText | |
1307 | || ecoff_ext.asym.sc == scInfo) | |
1308 | printf ("\n First symbol: %ld", indx + sym_base); | |
1309 | else | |
1310 | printf ("\n First symbol: %ld", | |
1311 | (AUX_GET_ISYM (bigendian, | |
1312 | &aux_base[ecoff_ext.asym.index]) | |
1313 | + sym_base)); | |
1314 | break; | |
1315 | ||
1316 | case stProc: | |
1317 | case stStaticProc: | |
1318 | if (MIPS_IS_STAB (&ecoff_ext.asym)) | |
1319 | ; | |
1320 | else if (ecoffsymbol (symbol)->local) | |
1321 | printf ("\n End+1 symbol: %-7ld Type: %s", | |
1322 | (AUX_GET_ISYM (bigendian, | |
1323 | &aux_base[ecoff_ext.asym.index]) | |
1324 | + sym_base), | |
1325 | type_to_string (abfd, aux_base, indx + 1, | |
1326 | bigendian)); | |
1327 | else | |
b6bef862 ILT |
1328 | printf ("\n Local symbol: %d", |
1329 | (indx | |
1330 | + sym_base | |
1331 | + ecoff_data (abfd)->symbolic_header.iextMax)); | |
515c4292 ILT |
1332 | break; |
1333 | ||
1334 | default: | |
1335 | if (!MIPS_IS_STAB (&ecoff_ext.asym)) | |
1336 | printf ("\n Type: %s", | |
1337 | type_to_string (abfd, aux_base, indx, bigendian)); | |
1338 | break; | |
1339 | } | |
1340 | } | |
1341 | } | |
1342 | break; | |
1343 | } | |
1344 | } | |
1345 | \f | |
b6bef862 ILT |
1346 | /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in |
1347 | external form. They use a bit which indicates whether the symbol | |
1348 | is external. */ | |
1349 | ||
1350 | /* Swap a reloc in. */ | |
1351 | ||
1352 | static void | |
1353 | DEFUN (ecoff_swap_reloc_in, (abfd, ext, intern), | |
1354 | bfd *abfd AND | |
1355 | RELOC *ext AND | |
1356 | struct internal_reloc *intern) | |
1357 | { | |
1358 | intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr); | |
1359 | if (abfd->xvec->header_byteorder_big_p != false) | |
1360 | { | |
c3fe0c41 | 1361 | intern->r_symndx = (((int) ext->r_bits[0] |
b6bef862 | 1362 | << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) |
c3fe0c41 | 1363 | | ((int) ext->r_bits[1] |
b6bef862 | 1364 | << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) |
c3fe0c41 | 1365 | | ((int) ext->r_bits[2] |
b6bef862 ILT |
1366 | << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); |
1367 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) | |
1368 | >> RELOC_BITS3_TYPE_SH_BIG); | |
1369 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; | |
1370 | } | |
1371 | else | |
1372 | { | |
c3fe0c41 | 1373 | intern->r_symndx = (((int) ext->r_bits[0] |
b6bef862 | 1374 | << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) |
c3fe0c41 | 1375 | | ((int) ext->r_bits[1] |
b6bef862 | 1376 | << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) |
c3fe0c41 | 1377 | | ((int) ext->r_bits[2] |
b6bef862 ILT |
1378 | << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); |
1379 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) | |
1380 | >> RELOC_BITS3_TYPE_SH_LITTLE); | |
1381 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | /* Swap a reloc out. */ | |
1386 | ||
1387 | static unsigned int | |
1388 | DEFUN (ecoff_swap_reloc_out, (abfd, src, dst), | |
1389 | bfd *abfd AND | |
1390 | PTR src AND | |
1391 | PTR dst) | |
1392 | { | |
1393 | struct internal_reloc *intern = (struct internal_reloc *) src; | |
1394 | RELOC *ext = (RELOC *) dst; | |
1395 | ||
1396 | bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr); | |
1397 | if (abfd->xvec->header_byteorder_big_p != false) | |
1398 | { | |
1399 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; | |
1400 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; | |
1401 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; | |
1402 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) | |
1403 | & RELOC_BITS3_TYPE_BIG) | |
1404 | | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); | |
1405 | } | |
1406 | else | |
1407 | { | |
1408 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; | |
1409 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; | |
1410 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; | |
1411 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) | |
1412 | & RELOC_BITS3_TYPE_LITTLE) | |
1413 | | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); | |
1414 | } | |
1415 | ||
1416 | return RELSZ; | |
1417 | } | |
1418 | ||
bf4b84bc ILT |
1419 | /* ECOFF relocs are either against external symbols, or against |
1420 | sections. If we are producing relocateable output, and the reloc | |
1421 | is against an external symbol, the resulting reloc will also be | |
1422 | against the same symbol. In such a case, we don't want to change | |
1423 | anything about the way the reloc is handled, since it will all be | |
1424 | done at final link time. Rather than put special case code into | |
1425 | bfd_perform_relocation, all the reloc types use this howto | |
1426 | function. It just short circuits the reloc if producing | |
1427 | relocateable output against an external symbol. */ | |
1428 | ||
1429 | static bfd_reloc_status_type | |
1430 | ecoff_generic_reloc (abfd, | |
1431 | reloc_entry, | |
1432 | symbol, | |
1433 | data, | |
1434 | input_section, | |
1435 | output_bfd) | |
1436 | bfd *abfd; | |
1437 | arelent *reloc_entry; | |
1438 | asymbol *symbol; | |
1439 | PTR data; | |
1440 | asection *input_section; | |
1441 | bfd *output_bfd; | |
1442 | { | |
1443 | if (output_bfd != (bfd *) NULL | |
1444 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1445 | { | |
1446 | reloc_entry->address += input_section->output_offset; | |
1447 | return bfd_reloc_ok; | |
1448 | } | |
1449 | ||
1450 | return bfd_reloc_continue; | |
1451 | } | |
1452 | ||
b6bef862 ILT |
1453 | /* Do a REFHI relocation. The next reloc must be the corresponding |
1454 | REFLO. This has to be done in a function so that carry is handled | |
1455 | correctly. */ | |
1456 | ||
1457 | static bfd_reloc_status_type | |
bf4b84bc ILT |
1458 | ecoff_refhi_reloc (abfd, |
1459 | reloc_entry, | |
1460 | symbol, | |
1461 | data, | |
1462 | input_section, | |
1463 | output_bfd) | |
1464 | bfd *abfd; | |
1465 | arelent *reloc_entry; | |
1466 | asymbol *symbol; | |
1467 | PTR data; | |
1468 | asection *input_section; | |
1469 | bfd *output_bfd; | |
b6bef862 ILT |
1470 | { |
1471 | bfd_reloc_status_type ret; | |
1472 | arelent *rello; | |
1473 | bfd_vma relocation; | |
b6bef862 | 1474 | unsigned long insn; |
c3fe0c41 ILT |
1475 | unsigned long val; |
1476 | unsigned long vallo; | |
b6bef862 | 1477 | |
bf4b84bc ILT |
1478 | /* If we're relocating, and this an external symbol, we don't want |
1479 | to change anything. */ | |
1480 | if (output_bfd != (bfd *) NULL | |
1481 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1482 | { | |
1483 | reloc_entry->address += input_section->output_offset; | |
1484 | return bfd_reloc_ok; | |
1485 | } | |
1486 | ||
b6bef862 ILT |
1487 | ret = bfd_reloc_ok; |
1488 | if (symbol->section == &bfd_und_section | |
1489 | && output_bfd == (bfd *) NULL) | |
1490 | ret = bfd_reloc_undefined; | |
1491 | ||
1492 | rello = reloc_entry + 1; | |
1493 | BFD_ASSERT (rello->howto->type == ECOFF_R_REFLO | |
1494 | && *rello->sym_ptr_ptr == *reloc_entry->sym_ptr_ptr); | |
1495 | ||
382f2a3d | 1496 | if (bfd_is_com_section (symbol->section)) |
b6bef862 ILT |
1497 | relocation = 0; |
1498 | else | |
1499 | relocation = symbol->value; | |
1500 | ||
bf4b84bc ILT |
1501 | relocation += symbol->section->output_section->vma; |
1502 | relocation += symbol->section->output_offset; | |
c3fe0c41 | 1503 | relocation += reloc_entry->addend; |
b6bef862 ILT |
1504 | |
1505 | if (reloc_entry->address > input_section->_cooked_size) | |
1506 | return bfd_reloc_outofrange; | |
1507 | ||
b6bef862 | 1508 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
c3fe0c41 ILT |
1509 | vallo = bfd_get_32 (abfd, (bfd_byte *) data + rello->address) & 0xffff; |
1510 | val = ((insn & 0xffff) << 16) + vallo; | |
1511 | val += relocation; | |
1512 | ||
1513 | /* The low order 16 bits are always treated as a signed value. | |
1514 | Therefore, a negative value in the low order bits requires an | |
1515 | adjustment in the high order bits. We need to make this | |
1516 | adjustment in two ways: once for the bits we took from the data, | |
1517 | and once for the bits we are putting back in to the data. */ | |
1518 | if ((vallo & 0x8000) != 0) | |
1519 | val -= 0x10000; | |
1520 | if ((val & 0x8000) != 0) | |
1521 | val += 0x10000; | |
1522 | ||
1523 | insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); | |
b6bef862 ILT |
1524 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
1525 | ||
c3fe0c41 ILT |
1526 | if (output_bfd != (bfd *) NULL) |
1527 | reloc_entry->address += input_section->output_offset; | |
1528 | ||
b6bef862 ILT |
1529 | return ret; |
1530 | } | |
1531 | ||
1532 | /* Do a GPREL relocation. This is a 16 bit value which must become | |
1533 | the offset from the gp register. */ | |
1534 | ||
1535 | static bfd_reloc_status_type | |
bf4b84bc ILT |
1536 | ecoff_gprel_reloc (abfd, |
1537 | reloc_entry, | |
1538 | symbol, | |
1539 | data, | |
1540 | input_section, | |
1541 | output_bfd) | |
1542 | bfd *abfd; | |
1543 | arelent *reloc_entry; | |
1544 | asymbol *symbol; | |
1545 | PTR data; | |
1546 | asection *input_section; | |
1547 | bfd *output_bfd; | |
b6bef862 | 1548 | { |
c3fe0c41 | 1549 | boolean relocateable; |
b6bef862 ILT |
1550 | bfd_vma relocation; |
1551 | unsigned long val; | |
1552 | unsigned long insn; | |
1553 | ||
bf4b84bc ILT |
1554 | /* If we're relocating, and this an external symbol, we don't want |
1555 | to change anything. */ | |
1556 | if (output_bfd != (bfd *) NULL | |
1557 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1558 | { | |
1559 | reloc_entry->address += input_section->output_offset; | |
1560 | return bfd_reloc_ok; | |
1561 | } | |
1562 | ||
b6bef862 | 1563 | if (output_bfd != (bfd *) NULL) |
c3fe0c41 ILT |
1564 | relocateable = true; |
1565 | else | |
1566 | { | |
1567 | relocateable = false; | |
1568 | output_bfd = symbol->section->output_section->owner; | |
1569 | } | |
b6bef862 | 1570 | |
c3fe0c41 ILT |
1571 | if (symbol->section == &bfd_und_section |
1572 | && relocateable == false) | |
1573 | return bfd_reloc_undefined; | |
b6bef862 | 1574 | |
c3fe0c41 ILT |
1575 | /* We have to figure out the gp value, so that we can adjust the |
1576 | symbol value correctly. We look up the symbol _gp in the output | |
1577 | BFD. If we can't find it, we're stuck. We cache it in the ECOFF | |
1578 | target data. */ | |
b6bef862 ILT |
1579 | if (ecoff_data (output_bfd)->gp == 0) |
1580 | { | |
bf4b84bc | 1581 | if (relocateable != false) |
c3fe0c41 ILT |
1582 | { |
1583 | /* Make up a value. */ | |
1584 | ecoff_data (output_bfd)->gp = | |
1585 | symbol->section->output_section->vma + 0x4000; | |
1586 | } | |
1587 | else | |
1588 | { | |
1589 | unsigned int count; | |
1590 | asymbol **sym; | |
1591 | unsigned int i; | |
b6bef862 | 1592 | |
c3fe0c41 ILT |
1593 | count = bfd_get_symcount (output_bfd); |
1594 | sym = bfd_get_outsymbols (output_bfd); | |
b6bef862 | 1595 | |
c3fe0c41 ILT |
1596 | /* We should do something more friendly here, but we don't |
1597 | have a good reloc status to return. */ | |
1598 | if (sym == (asymbol **) NULL) | |
1599 | abort (); | |
b6bef862 | 1600 | |
c3fe0c41 | 1601 | for (i = 0; i < count; i++, sym++) |
b6bef862 | 1602 | { |
c3fe0c41 ILT |
1603 | register CONST char *name; |
1604 | ||
1605 | name = bfd_asymbol_name (*sym); | |
1606 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1607 | { | |
1608 | ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym); | |
1609 | break; | |
1610 | } | |
b6bef862 | 1611 | } |
b6bef862 | 1612 | |
c3fe0c41 ILT |
1613 | /* We should do something more friendly here, but we don't have |
1614 | a good reloc status to return. */ | |
1615 | if (i >= count) | |
1616 | abort (); | |
1617 | } | |
b6bef862 ILT |
1618 | } |
1619 | ||
382f2a3d | 1620 | if (bfd_is_com_section (symbol->section)) |
b6bef862 ILT |
1621 | relocation = 0; |
1622 | else | |
1623 | relocation = symbol->value; | |
1624 | ||
1625 | relocation += symbol->section->output_section->vma; | |
1626 | relocation += symbol->section->output_offset; | |
1627 | ||
1628 | if (reloc_entry->address > input_section->_cooked_size) | |
1629 | return bfd_reloc_outofrange; | |
1630 | ||
1631 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
c3fe0c41 ILT |
1632 | |
1633 | /* Set val to the offset into the section (if we are relocating | |
1634 | against an external symbol, insn & 0xffff will be zero and so | |
1635 | will reloc_entry->addend). */ | |
1636 | val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; | |
1637 | if (val & 0x8000) | |
b6bef862 | 1638 | val -= 0x10000; |
c3fe0c41 ILT |
1639 | |
1640 | /* Adjust val for the final section location and GP value. */ | |
1641 | val += (relocation - ecoff_data (output_bfd)->gp); | |
1642 | ||
b6bef862 ILT |
1643 | insn = (insn &~ 0xffff) | (val & 0xffff); |
1644 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
1645 | ||
bf4b84bc | 1646 | if (relocateable != false) |
c3fe0c41 ILT |
1647 | reloc_entry->address += input_section->output_offset; |
1648 | ||
1649 | /* Make sure it fit in 16 bits. */ | |
1650 | if (val >= 0x8000 && val < 0xffff8000) | |
1651 | return bfd_reloc_outofrange; | |
1652 | ||
1653 | return bfd_reloc_ok; | |
b6bef862 ILT |
1654 | } |
1655 | ||
1656 | /* How to process the various relocs types. */ | |
1657 | ||
1658 | static reloc_howto_type ecoff_howto_table[] = | |
1659 | { | |
1660 | /* Reloc type 0 is ignored. The reloc reading code ensures that | |
1661 | this is a reference to the .abs section, which will cause | |
1662 | bfd_perform_relocation to do nothing. */ | |
1663 | HOWTO (ECOFF_R_IGNORE, /* type */ | |
1664 | 0, /* rightshift */ | |
1665 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1666 | 8, /* bitsize (obsolete) */ | |
1667 | false, /* pc_relative */ | |
1668 | 0, /* bitpos */ | |
1669 | false, /* absolute (obsolete) */ | |
1670 | false, /* complain_on_overflow */ | |
1671 | 0, /* special_function */ | |
1672 | "IGNORE", /* name */ | |
1673 | false, /* partial_inplace */ | |
1674 | 0, /* src_mask */ | |
1675 | 0, /* dst_mask */ | |
1676 | false), /* pcrel_offset */ | |
1677 | ||
1678 | /* A 16 bit reference to a symbol, normally from a data section. */ | |
1679 | HOWTO (ECOFF_R_REFHALF, /* type */ | |
1680 | 0, /* rightshift */ | |
1681 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1682 | 16, /* bitsize (obsolete) */ | |
1683 | false, /* pc_relative */ | |
1684 | 0, /* bitpos */ | |
1685 | false, /* absolute (obsolete) */ | |
1686 | true, /* complain_on_overflow */ | |
bf4b84bc | 1687 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1688 | "REFHALF", /* name */ |
1689 | true, /* partial_inplace */ | |
1690 | 0xffff, /* src_mask */ | |
1691 | 0xffff, /* dst_mask */ | |
1692 | false), /* pcrel_offset */ | |
1693 | ||
1694 | /* A 32 bit reference to a symbol, normally from a data section. */ | |
1695 | HOWTO (ECOFF_R_REFWORD, /* type */ | |
1696 | 0, /* rightshift */ | |
1697 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1698 | 32, /* bitsize (obsolete) */ | |
1699 | false, /* pc_relative */ | |
1700 | 0, /* bitpos */ | |
1701 | false, /* absolute (obsolete) */ | |
1702 | true, /* complain_on_overflow */ | |
bf4b84bc | 1703 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1704 | "REFWORD", /* name */ |
1705 | true, /* partial_inplace */ | |
1706 | 0xffffffff, /* src_mask */ | |
1707 | 0xffffffff, /* dst_mask */ | |
1708 | false), /* pcrel_offset */ | |
1709 | ||
1710 | /* A 26 bit absolute jump address. */ | |
1711 | HOWTO (ECOFF_R_JMPADDR, /* type */ | |
1712 | 2, /* rightshift */ | |
1713 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1714 | 32, /* bitsize (obsolete) */ | |
1715 | false, /* pc_relative */ | |
1716 | 0, /* bitpos */ | |
1717 | false, /* absolute (obsolete) */ | |
1718 | true, /* complain_on_overflow */ | |
bf4b84bc | 1719 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1720 | "JMPADDR", /* name */ |
1721 | true, /* partial_inplace */ | |
1722 | 0x3ffffff, /* src_mask */ | |
1723 | 0x3ffffff, /* dst_mask */ | |
1724 | false), /* pcrel_offset */ | |
1725 | ||
1726 | /* The high 16 bits of a symbol value. Handled by the function | |
1727 | ecoff_refhi_reloc. */ | |
1728 | HOWTO (ECOFF_R_REFHI, /* type */ | |
1729 | 16, /* rightshift */ | |
1730 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1731 | 32, /* bitsize (obsolete) */ | |
1732 | false, /* pc_relative */ | |
1733 | 0, /* bitpos */ | |
1734 | false, /* absolute (obsolete) */ | |
1735 | true, /* complain_on_overflow */ | |
1736 | ecoff_refhi_reloc, /* special_function */ | |
1737 | "REFHI", /* name */ | |
1738 | true, /* partial_inplace */ | |
1739 | 0xffff, /* src_mask */ | |
1740 | 0xffff, /* dst_mask */ | |
1741 | false), /* pcrel_offset */ | |
1742 | ||
1743 | /* The low 16 bits of a symbol value. */ | |
1744 | HOWTO (ECOFF_R_REFLO, /* type */ | |
1745 | 0, /* rightshift */ | |
1746 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1747 | 32, /* bitsize (obsolete) */ | |
1748 | false, /* pc_relative */ | |
1749 | 0, /* bitpos */ | |
1750 | false, /* absolute (obsolete) */ | |
1751 | true, /* complain_on_overflow */ | |
bf4b84bc | 1752 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1753 | "REFLO", /* name */ |
1754 | true, /* partial_inplace */ | |
1755 | 0xffff, /* src_mask */ | |
1756 | 0xffff, /* dst_mask */ | |
1757 | false), /* pcrel_offset */ | |
1758 | ||
1759 | /* A reference to an offset from the gp register. Handled by the | |
1760 | function ecoff_gprel_reloc. */ | |
1761 | HOWTO (ECOFF_R_GPREL, /* type */ | |
1762 | 0, /* rightshift */ | |
1763 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1764 | 32, /* bitsize (obsolete) */ | |
1765 | false, /* pc_relative */ | |
1766 | 0, /* bitpos */ | |
1767 | false, /* absolute (obsolete) */ | |
1768 | true, /* complain_on_overflow */ | |
1769 | ecoff_gprel_reloc, /* special_function */ | |
1770 | "GPREL", /* name */ | |
1771 | true, /* partial_inplace */ | |
1772 | 0xffff, /* src_mask */ | |
1773 | 0xffff, /* dst_mask */ | |
1774 | false), /* pcrel_offset */ | |
1775 | ||
1776 | /* A reference to a literal using an offset from the gp register. | |
1777 | Handled by the function ecoff_gprel_reloc. */ | |
1778 | HOWTO (ECOFF_R_LITERAL, /* type */ | |
1779 | 0, /* rightshift */ | |
1780 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1781 | 32, /* bitsize (obsolete) */ | |
1782 | false, /* pc_relative */ | |
1783 | 0, /* bitpos */ | |
1784 | false, /* absolute (obsolete) */ | |
1785 | true, /* complain_on_overflow */ | |
1786 | ecoff_gprel_reloc, /* special_function */ | |
1787 | "LITERAL", /* name */ | |
1788 | true, /* partial_inplace */ | |
1789 | 0xffff, /* src_mask */ | |
1790 | 0xffff, /* dst_mask */ | |
1791 | false) /* pcrel_offset */ | |
1792 | }; | |
1793 | ||
1794 | /* Read in the relocs for a section. */ | |
1795 | ||
1796 | static boolean | |
1797 | DEFUN (ecoff_slurp_reloc_table, (abfd, section, symbols), | |
1798 | bfd *abfd AND | |
1799 | asection *section AND | |
1800 | asymbol **symbols) | |
1801 | { | |
1802 | RELOC *external_relocs; | |
1803 | arelent *internal_relocs; | |
1804 | arelent *rptr; | |
1805 | unsigned int i; | |
1806 | ||
1807 | if (section->relocation != (arelent *) NULL | |
1808 | || section->reloc_count == 0 | |
1809 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1810 | return true; | |
1811 | ||
1812 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1813 | return false; | |
1814 | ||
1815 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1816 | (sizeof (arelent) | |
1817 | * section->reloc_count)); | |
1818 | external_relocs = (RELOC *) bfd_alloc (abfd, RELSZ * section->reloc_count); | |
1819 | if (internal_relocs == (arelent *) NULL | |
1820 | || external_relocs == (RELOC *) NULL) | |
1821 | { | |
1822 | bfd_error = no_memory; | |
1823 | return false; | |
1824 | } | |
1825 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1826 | return false; | |
1827 | if (bfd_read (external_relocs, 1, RELSZ * section->reloc_count, abfd) | |
1828 | != RELSZ * section->reloc_count) | |
1829 | { | |
1830 | bfd_error = system_call_error; | |
1831 | return false; | |
1832 | } | |
1833 | ||
1834 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1835 | { | |
1836 | struct internal_reloc intern; | |
1837 | ||
1838 | ecoff_swap_reloc_in (abfd, external_relocs + i, &intern); | |
1839 | ||
c3fe0c41 | 1840 | if (intern.r_type > ECOFF_R_LITERAL) |
b6bef862 ILT |
1841 | abort (); |
1842 | ||
1843 | if (intern.r_extern) | |
1844 | { | |
1845 | /* r_symndx is an index into the external symbols. */ | |
1846 | BFD_ASSERT (intern.r_symndx >= 0 | |
1847 | && (intern.r_symndx | |
1848 | < ecoff_data (abfd)->symbolic_header.iextMax)); | |
1849 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
c3fe0c41 | 1850 | rptr->addend = 0; |
b6bef862 ILT |
1851 | } |
1852 | else | |
1853 | { | |
1854 | CONST char *sec_name; | |
1855 | asection *sec; | |
1856 | ||
1857 | /* r_symndx is a section key. */ | |
1858 | switch (intern.r_symndx) | |
1859 | { | |
1860 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1861 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1862 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1863 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1864 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1865 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1866 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1867 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1868 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
1869 | default: abort (); | |
1870 | } | |
1871 | ||
1872 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1873 | if (sec == (asection *) NULL) | |
1874 | abort (); | |
1875 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
c3fe0c41 ILT |
1876 | |
1877 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
1878 | if (intern.r_type == ECOFF_R_GPREL | |
1879 | || intern.r_type == ECOFF_R_LITERAL) | |
1880 | rptr->addend += ecoff_data (abfd)->gp; | |
b6bef862 ILT |
1881 | } |
1882 | ||
1883 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
b6bef862 ILT |
1884 | rptr->howto = &ecoff_howto_table[intern.r_type]; |
1885 | ||
1886 | /* If the type is ECOFF_R_IGNORE, make sure this is a reference | |
1887 | to the absolute section so that the reloc is ignored. */ | |
1888 | if (intern.r_type == ECOFF_R_IGNORE) | |
1889 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1890 | } | |
1891 | ||
1892 | bfd_release (abfd, external_relocs); | |
1893 | ||
1894 | section->relocation = internal_relocs; | |
1895 | ||
1896 | return true; | |
1897 | } | |
1898 | ||
1899 | /* Get a canonical list of relocs. */ | |
1900 | ||
1901 | static unsigned int | |
1902 | DEFUN (ecoff_canonicalize_reloc, (abfd, section, relptr, symbols), | |
1903 | bfd *abfd AND | |
1904 | asection *section AND | |
1905 | arelent **relptr AND | |
1906 | asymbol **symbols) | |
1907 | { | |
1908 | unsigned int count; | |
1909 | ||
1910 | if (section->flags & SEC_CONSTRUCTOR) | |
1911 | { | |
1912 | arelent_chain *chain; | |
1913 | ||
1914 | /* This section has relocs made up by us, not the file, so take | |
1915 | them out of their chain and place them into the data area | |
1916 | provided. */ | |
1917 | for (count = 0, chain = section->constructor_chain; | |
1918 | count < section->reloc_count; | |
1919 | count++, chain = chain->next) | |
1920 | *relptr++ = &chain->relent; | |
1921 | } | |
bf4b84bc | 1922 | else |
b6bef862 ILT |
1923 | { |
1924 | arelent *tblptr; | |
1925 | ||
1926 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1927 | return 0; | |
1928 | ||
1929 | tblptr = section->relocation; | |
1930 | if (tblptr == (arelent *) NULL) | |
1931 | return 0; | |
1932 | ||
1933 | for (count = 0; count < section->reloc_count; count++) | |
1934 | *relptr++ = tblptr++; | |
1935 | } | |
1936 | ||
1937 | *relptr = (arelent *) NULL; | |
1938 | ||
1939 | return section->reloc_count; | |
1940 | } | |
1941 | \f | |
515c4292 ILT |
1942 | /* Provided a BFD, a section and an offset into the section, calculate |
1943 | and return the name of the source file and the line nearest to the | |
1944 | wanted location. */ | |
1945 | ||
1946 | static boolean | |
1947 | DEFUN (ecoff_find_nearest_line, (abfd, | |
1948 | section, | |
1949 | ignore_symbols, | |
1950 | offset, | |
1951 | filename_ptr, | |
1952 | functionname_ptr, | |
1953 | retline_ptr), | |
1954 | bfd *abfd AND | |
1955 | asection *section AND | |
1956 | asymbol **ignore_symbols AND | |
1957 | bfd_vma offset AND | |
1958 | CONST char **filename_ptr AND | |
1959 | CONST char **functionname_ptr AND | |
1960 | unsigned int *retline_ptr) | |
1961 | { | |
1962 | FDR *fdr_ptr; | |
1963 | FDR *fdr_start; | |
1964 | FDR *fdr_end; | |
1965 | FDR *fdr_hold; | |
1966 | struct pdr_ext *pdr_ptr; | |
1967 | struct pdr_ext *pdr_end; | |
1968 | PDR pdr; | |
1969 | unsigned char *line_ptr; | |
1970 | unsigned char *line_end; | |
1971 | int lineno; | |
515c4292 ILT |
1972 | |
1973 | /* If we're not in the .text section, we don't have any line | |
1974 | numbers. */ | |
1975 | if (strcmp (section->name, _TEXT) != 0) | |
1976 | return false; | |
1977 | ||
8fa0d3a0 ILT |
1978 | /* Make sure we have the FDR's. */ |
1979 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1980 | || bfd_get_symcount (abfd) == 0) | |
1981 | return false; | |
1982 | ||
515c4292 ILT |
1983 | /* Each file descriptor (FDR) has a memory address. Here we track |
1984 | down which FDR we want. The FDR's are stored in increasing | |
1985 | memory order. If speed is ever important, this can become a | |
1986 | binary search. We must ignore FDR's with no PDR entries; they | |
1987 | will have the adr of the FDR before or after them. */ | |
1988 | fdr_start = ecoff_data (abfd)->fdr; | |
1989 | fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; | |
1990 | fdr_hold = (FDR *) NULL; | |
1991 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
1992 | { | |
1993 | if (offset < fdr_ptr->adr) | |
1994 | break; | |
1995 | if (fdr_ptr->cpd > 0) | |
1996 | fdr_hold = fdr_ptr; | |
1997 | } | |
1998 | if (fdr_hold == (FDR *) NULL) | |
1999 | return false; | |
2000 | fdr_ptr = fdr_hold; | |
2001 | ||
2002 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
2003 | have an address, which is relative to the FDR address, and are | |
2004 | also stored in increasing memory order. */ | |
2005 | offset -= fdr_ptr->adr; | |
2006 | pdr_ptr = ecoff_data (abfd)->external_pdr + fdr_ptr->ipdFirst; | |
2007 | pdr_end = pdr_ptr + fdr_ptr->cpd; | |
2008 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2009 | if (offset < pdr.adr) | |
2010 | return false; | |
2011 | for (pdr_ptr++; pdr_ptr < pdr_end; pdr_ptr++) | |
2012 | { | |
2013 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2014 | if (offset < pdr.adr) | |
2015 | break; | |
2016 | } | |
2017 | ||
2018 | /* Now we can look for the actual line number. The line numbers are | |
2019 | stored in a very funky format, which I won't try to describe. | |
2020 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
2021 | we want; we need this to compute line_end. */ | |
2022 | line_end = ecoff_data (abfd)->line; | |
2023 | if (pdr_ptr == pdr_end) | |
2024 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
2025 | else | |
2026 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
2027 | ||
2028 | /* Now change pdr and pdr_ptr to the one we want. */ | |
2029 | pdr_ptr--; | |
2030 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2031 | ||
2032 | offset -= pdr.adr; | |
2033 | lineno = pdr.lnLow; | |
2034 | line_ptr = (ecoff_data (abfd)->line | |
2035 | + fdr_ptr->cbLineOffset | |
2036 | + pdr.cbLineOffset); | |
2037 | while (line_ptr < line_end) | |
2038 | { | |
2039 | int delta; | |
2040 | int count; | |
2041 | ||
2042 | delta = *line_ptr >> 4; | |
2043 | if (delta >= 0x8) | |
2044 | delta -= 0x10; | |
2045 | count = (*line_ptr & 0xf) + 1; | |
2046 | ++line_ptr; | |
2047 | if (delta == -8) | |
2048 | { | |
2049 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
2050 | if (delta >= 0x8000) | |
2051 | delta -= 0x10000; | |
2052 | line_ptr += 2; | |
2053 | } | |
2054 | lineno += delta; | |
2055 | if (offset < count * 4) | |
2056 | break; | |
2057 | offset -= count * 4; | |
2058 | } | |
2059 | ||
2060 | /* If offset is too large, this line is not interesting. */ | |
2061 | if (offset > 100) | |
2062 | return false; | |
2063 | ||
bf4b84bc ILT |
2064 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, |
2065 | at least according to gdb/mipsread.c. */ | |
2066 | if (fdr_ptr->rss == -1) | |
2067 | { | |
2068 | *filename_ptr = NULL; | |
2069 | if (pdr.isym == -1) | |
2070 | *functionname_ptr = NULL; | |
2071 | else | |
2072 | { | |
2073 | EXTR proc_ext; | |
2074 | ||
2075 | ecoff_swap_ext_in (abfd, | |
2076 | (ecoff_data (abfd)->external_ext | |
2077 | + pdr.isym), | |
2078 | &proc_ext); | |
2079 | *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss; | |
2080 | } | |
2081 | } | |
2082 | else | |
2083 | { | |
2084 | SYMR proc_sym; | |
2085 | ||
2086 | *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; | |
2087 | ecoff_swap_sym_in (abfd, | |
2088 | (ecoff_data (abfd)->external_sym | |
2089 | + fdr_ptr->isymBase | |
2090 | + pdr.isym), | |
2091 | &proc_sym); | |
2092 | *functionname_ptr = (ecoff_data (abfd)->ss | |
2093 | + fdr_ptr->issBase | |
2094 | + proc_sym.iss); | |
2095 | } | |
515c4292 ILT |
2096 | *retline_ptr = lineno; |
2097 | return true; | |
2098 | } | |
2099 | \f | |
8fa0d3a0 ILT |
2100 | /* We can't use the generic linking routines for ECOFF, because we |
2101 | have to handle all the debugging information. The generic link | |
2102 | routine just works out the section contents and attaches a list of | |
2103 | symbols. | |
2104 | ||
2105 | We link by looping over all the seclets. We make two passes. On | |
2106 | the first we set the actual section contents and determine the size | |
2107 | of the debugging information. On the second we accumulate the | |
2108 | debugging information and write it out. | |
2109 | ||
2110 | This currently always accumulates the debugging information, which | |
2111 | is incorrect, because it ignores the -s and -S options of the | |
2112 | linker. The linker needs to be modified to give us that | |
2113 | information in a more useful format (currently it just provides a | |
2114 | list of symbols which should appear in the output file). */ | |
2115 | ||
2116 | /* Clear the output_has_begun flag for all the input BFD's. We use it | |
2117 | to avoid linking in the debugging information for a BFD more than | |
2118 | once. */ | |
2119 | ||
2120 | static void | |
2121 | DEFUN (ecoff_clear_output_flags, (abfd), | |
2122 | bfd *abfd) | |
2123 | { | |
2124 | register asection *o; | |
2125 | register bfd_seclet_type *p; | |
2126 | ||
2127 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2128 | for (p = o->seclets_head; | |
2129 | p != (bfd_seclet_type *) NULL; | |
2130 | p = p->next) | |
2131 | if (p->type == bfd_indirect_seclet) | |
2132 | p->u.indirect.section->owner->output_has_begun = false; | |
2133 | } | |
2134 | ||
2135 | /* Handle an indirect seclet on the first pass. Set the contents of | |
2136 | the output section, and accumulate the debugging information if | |
2137 | any. */ | |
2138 | ||
2139 | static boolean | |
2140 | DEFUN (ecoff_rel, (output_bfd, seclet, output_section, data, relocateable), | |
2141 | bfd *output_bfd AND | |
2142 | bfd_seclet_type *seclet AND | |
2143 | asection *output_section AND | |
2144 | PTR data AND | |
2145 | boolean relocateable) | |
2146 | { | |
2147 | bfd *input_bfd; | |
2148 | HDRR *output_symhdr; | |
2149 | HDRR *input_symhdr; | |
c3fe0c41 ILT |
2150 | ecoff_symbol_type *sym_ptr; |
2151 | ecoff_symbol_type *sym_end; | |
8fa0d3a0 ILT |
2152 | |
2153 | if ((output_section->flags & SEC_HAS_CONTENTS) | |
2154 | && !(output_section->flags & SEC_NEVER_LOAD) | |
2155 | && (output_section->flags & SEC_LOAD) | |
2156 | && seclet->size) | |
2157 | { | |
2158 | data = (PTR) bfd_get_relocated_section_contents (output_bfd, | |
2159 | seclet, | |
2160 | data, | |
2161 | relocateable); | |
2162 | if (bfd_set_section_contents (output_bfd, | |
2163 | output_section, | |
2164 | data, | |
2165 | seclet->offset, | |
2166 | seclet->size) | |
2167 | == false) | |
2168 | { | |
2169 | abort(); | |
2170 | } | |
2171 | } | |
2172 | ||
2173 | input_bfd = seclet->u.indirect.section->owner; | |
2174 | ||
2175 | /* We want to figure out how much space will be required to | |
2176 | incorporate all the debugging information from input_bfd. We use | |
2177 | the output_has_begun field to avoid adding it in more than once. | |
2178 | The actual incorporation is done in the second pass, in | |
2179 | ecoff_get_debug. The code has to parallel that code in its | |
2180 | manipulations of output_symhdr. */ | |
2181 | ||
2182 | if (input_bfd->output_has_begun) | |
2183 | return true; | |
2184 | input_bfd->output_has_begun = true; | |
2185 | ||
2186 | output_symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2187 | ||
2188 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2189 | { | |
2190 | asymbol **symbols; | |
2191 | asymbol **sym_ptr; | |
2192 | asymbol **sym_end; | |
2193 | ||
c3fe0c41 ILT |
2194 | /* We just accumulate local symbols from a non-ECOFF BFD. The |
2195 | external symbols are handled separately. */ | |
8fa0d3a0 ILT |
2196 | |
2197 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2198 | get_symtab_upper_bound (input_bfd)); | |
2199 | if (symbols == (asymbol **) NULL) | |
2200 | { | |
2201 | bfd_error = no_memory; | |
2202 | return false; | |
2203 | } | |
2204 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2205 | ||
2206 | for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) | |
2207 | { | |
2208 | size_t len; | |
2209 | ||
2210 | len = strlen ((*sym_ptr)->name); | |
2211 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
2212 | { | |
2213 | ++output_symhdr->isymMax; | |
2214 | output_symhdr->issMax += len + 1; | |
2215 | } | |
8fa0d3a0 ILT |
2216 | } |
2217 | ||
2218 | bfd_release (output_bfd, (PTR) symbols); | |
2219 | ||
2220 | ++output_symhdr->ifdMax; | |
2221 | ||
2222 | return true; | |
2223 | } | |
2224 | ||
2225 | /* We simply add in the information from another ECOFF BFD. First | |
2226 | we make sure we have the symbolic information. */ | |
c3fe0c41 | 2227 | if (ecoff_slurp_symbol_table (input_bfd) == false) |
8fa0d3a0 ILT |
2228 | return false; |
2229 | if (bfd_get_symcount (input_bfd) == 0) | |
2230 | return true; | |
2231 | ||
2232 | input_symhdr = &ecoff_data (input_bfd)->symbolic_header; | |
2233 | ||
c3fe0c41 ILT |
2234 | /* Figure out how much information we are going to be putting in. |
2235 | The external symbols are handled separately. */ | |
8fa0d3a0 ILT |
2236 | output_symhdr->ilineMax += input_symhdr->ilineMax; |
2237 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2238 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2239 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2240 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2241 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2242 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2243 | output_symhdr->issMax += input_symhdr->issMax; | |
8fa0d3a0 | 2244 | output_symhdr->ifdMax += input_symhdr->ifdMax; |
8fa0d3a0 ILT |
2245 | |
2246 | /* The RFD's are special, since we create them if needed. */ | |
2247 | if (input_symhdr->crfd > 0) | |
2248 | output_symhdr->crfd += input_symhdr->crfd; | |
2249 | else | |
2250 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2251 | ||
2252 | return true; | |
2253 | } | |
2254 | ||
2255 | /* Handle an arbitrary seclet on the first pass. */ | |
2256 | ||
2257 | static boolean | |
2258 | DEFUN (ecoff_dump_seclet, (abfd, seclet, section, data, relocateable), | |
2259 | bfd *abfd AND | |
2260 | bfd_seclet_type *seclet AND | |
2261 | asection *section AND | |
2262 | PTR data AND | |
2263 | boolean relocateable) | |
2264 | { | |
2265 | switch (seclet->type) | |
2266 | { | |
2267 | case bfd_indirect_seclet: | |
2268 | /* The contents of this section come from another one somewhere | |
2269 | else. */ | |
2270 | return ecoff_rel (abfd, seclet, section, data, relocateable); | |
2271 | ||
2272 | case bfd_fill_seclet: | |
c3fe0c41 ILT |
2273 | /* Fill in the section with fill.value. This is used to pad out |
2274 | sections, but we must avoid padding the .bss section. */ | |
2275 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
2276 | { | |
2277 | if (seclet->u.fill.value != 0) | |
2278 | abort (); | |
2279 | } | |
2280 | else | |
2281 | { | |
2282 | char *d = (char *) bfd_alloc (abfd, seclet->size); | |
2283 | unsigned int i; | |
2284 | boolean ret; | |
2285 | ||
2286 | for (i = 0; i < seclet->size; i+=2) | |
2287 | d[i] = seclet->u.fill.value >> 8; | |
2288 | for (i = 1; i < seclet->size; i+=2) | |
2289 | d[i] = seclet->u.fill.value; | |
2290 | ret = bfd_set_section_contents (abfd, section, d, seclet->offset, | |
2291 | seclet->size); | |
2292 | bfd_release (abfd, (PTR) d); | |
2293 | return ret; | |
2294 | } | |
2295 | break; | |
8fa0d3a0 ILT |
2296 | |
2297 | default: | |
2298 | abort(); | |
2299 | } | |
2300 | ||
2301 | return true; | |
2302 | } | |
2303 | ||
2304 | /* Add a string to the debugging information we are accumulating for a | |
2305 | file. Return the offset from the fdr string base or from the | |
2306 | external string base. */ | |
2307 | ||
2308 | static long | |
2309 | DEFUN (ecoff_add_string, (output_bfd, fdr, string, external), | |
2310 | bfd *output_bfd AND | |
2311 | FDR *fdr AND | |
2312 | CONST char *string AND | |
2313 | boolean external) | |
2314 | { | |
2315 | HDRR *symhdr; | |
2316 | size_t len; | |
2317 | long ret; | |
2318 | ||
2319 | symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2320 | len = strlen (string); | |
2321 | if (external) | |
2322 | { | |
2323 | strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); | |
2324 | ret = symhdr->issExtMax; | |
2325 | symhdr->issExtMax += len + 1; | |
2326 | } | |
2327 | else | |
2328 | { | |
2329 | strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); | |
2330 | ret = fdr->cbSs; | |
2331 | symhdr->issMax += len + 1; | |
2332 | fdr->cbSs += len + 1; | |
2333 | } | |
2334 | return ret; | |
2335 | } | |
2336 | ||
2337 | /* Accumulate the debugging information from an input section. */ | |
2338 | ||
2339 | static boolean | |
2340 | DEFUN (ecoff_get_debug, (output_bfd, seclet, section), | |
2341 | bfd *output_bfd AND | |
2342 | bfd_seclet_type *seclet AND | |
2343 | asection *section) | |
2344 | { | |
2345 | bfd *input_bfd; | |
2346 | HDRR *output_symhdr; | |
2347 | HDRR *input_symhdr; | |
2348 | ecoff_data_type *output_ecoff; | |
2349 | ecoff_data_type *input_ecoff; | |
c3fe0c41 ILT |
2350 | unsigned int count; |
2351 | struct sym_ext *sym_out; | |
2352 | struct ext_ext *ext_out; | |
2353 | ecoff_symbol_type *esym_ptr; | |
2354 | ecoff_symbol_type *esym_end; | |
8fa0d3a0 ILT |
2355 | FDR *fdr_ptr; |
2356 | FDR *fdr_end; | |
2357 | struct fdr_ext *fdr_out; | |
8fa0d3a0 ILT |
2358 | |
2359 | input_bfd = seclet->u.indirect.section->owner; | |
2360 | ||
2361 | /* Don't get the information more than once. */ | |
2362 | if (input_bfd->output_has_begun) | |
2363 | return true; | |
2364 | input_bfd->output_has_begun = true; | |
2365 | ||
2366 | output_ecoff = ecoff_data (output_bfd); | |
2367 | output_symhdr = &output_ecoff->symbolic_header; | |
2368 | ||
2369 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2370 | { | |
2371 | FDR fdr; | |
2372 | asymbol **symbols; | |
2373 | asymbol **sym_ptr; | |
2374 | asymbol **sym_end; | |
2375 | ||
2376 | /* This is not an ECOFF BFD. Just gather the symbols. */ | |
2377 | ||
2378 | memset (&fdr, 0, sizeof fdr); | |
2379 | ||
2380 | fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; | |
2381 | fdr.issBase = output_symhdr->issMax; | |
2382 | fdr.cbSs = 0; | |
2383 | fdr.rss = ecoff_add_string (output_bfd, | |
2384 | &fdr, | |
2385 | bfd_get_filename (input_bfd), | |
2386 | false); | |
2387 | fdr.isymBase = output_symhdr->isymMax; | |
2388 | ||
c3fe0c41 | 2389 | /* Get the local symbols from the input BFD. */ |
8fa0d3a0 ILT |
2390 | symbols = (asymbol **) bfd_alloc (output_bfd, |
2391 | get_symtab_upper_bound (input_bfd)); | |
2392 | if (symbols == (asymbol **) NULL) | |
2393 | { | |
2394 | bfd_error = no_memory; | |
2395 | return false; | |
2396 | } | |
2397 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2398 | ||
c3fe0c41 ILT |
2399 | /* Handle the local symbols. Any external symbols are handled |
2400 | separately. */ | |
8fa0d3a0 ILT |
2401 | fdr.csym = 0; |
2402 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2403 | { | |
2404 | SYMR internal_sym; | |
2405 | ||
2406 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) | |
2407 | continue; | |
2408 | memset (&internal_sym, 0, sizeof internal_sym); | |
2409 | internal_sym.iss = ecoff_add_string (output_bfd, | |
2410 | &fdr, | |
2411 | (*sym_ptr)->name, | |
2412 | false); | |
2413 | internal_sym.value = (*sym_ptr)->value; | |
2414 | internal_sym.st = stNil; | |
2415 | internal_sym.sc = scUndefined; | |
2416 | internal_sym.index = indexNil; | |
2417 | ecoff_swap_sym_out (output_bfd, &internal_sym, | |
2418 | (output_ecoff->external_sym | |
2419 | + output_symhdr->isymMax)); | |
2420 | ++fdr.csym; | |
2421 | ++output_symhdr->isymMax; | |
2422 | } | |
2423 | ||
8fa0d3a0 ILT |
2424 | bfd_release (output_bfd, (PTR) symbols); |
2425 | ||
c3fe0c41 ILT |
2426 | /* Leave everything else in the FDR zeroed out. This will cause |
2427 | the lang field to be langC. The fBigendian field will | |
2428 | indicate little endian format, but it doesn't matter because | |
2429 | it only applies to aux fields and there are none. */ | |
8fa0d3a0 ILT |
2430 | |
2431 | ecoff_swap_fdr_out (output_bfd, &fdr, | |
2432 | (output_ecoff->external_fdr | |
2433 | + output_symhdr->ifdMax)); | |
2434 | ++output_symhdr->ifdMax; | |
2435 | return true; | |
2436 | } | |
2437 | ||
2438 | /* This is an ECOFF BFD. We want to grab the information from | |
2439 | input_bfd and attach it to output_bfd. */ | |
c3fe0c41 ILT |
2440 | count = bfd_get_symcount (input_bfd); |
2441 | if (count == 0) | |
8fa0d3a0 ILT |
2442 | return true; |
2443 | input_ecoff = ecoff_data (input_bfd); | |
2444 | input_symhdr = &input_ecoff->symbolic_header; | |
2445 | ||
c3fe0c41 ILT |
2446 | /* I think that it is more efficient to simply copy the debugging |
2447 | information from the input BFD to the output BFD. Because ECOFF | |
2448 | uses relative pointers for most of the debugging information, | |
2449 | only a little of it has to be changed at all. */ | |
2450 | ||
2451 | /* Swap in the local symbols, adjust their values, and swap them out | |
2452 | again. The external symbols are handled separately. */ | |
2453 | sym_out = output_ecoff->external_sym + output_symhdr->isymMax; | |
2454 | ||
2455 | esym_ptr = ecoff_data (input_bfd)->canonical_symbols; | |
2456 | esym_end = esym_ptr + count; | |
2457 | for (; esym_ptr < esym_end; esym_ptr++) | |
2458 | { | |
2459 | if (esym_ptr->local) | |
2460 | { | |
2461 | SYMR sym; | |
2462 | ||
2463 | ecoff_swap_sym_in (input_bfd, esym_ptr->native.lnative, &sym); | |
382f2a3d | 2464 | if (! bfd_is_com_section (esym_ptr->symbol.section) |
c3fe0c41 ILT |
2465 | && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0 |
2466 | && esym_ptr->symbol.section != &bfd_und_section) | |
2467 | sym.value = (esym_ptr->symbol.value | |
2468 | + esym_ptr->symbol.section->output_offset | |
2469 | + esym_ptr->symbol.section->output_section->vma); | |
2470 | ecoff_swap_sym_out (output_bfd, &sym, sym_out); | |
2471 | ++sym_out; | |
2472 | } | |
2473 | } | |
2474 | ||
2475 | /* That should have accounted for all the local symbols in | |
2476 | input_bfd. */ | |
2477 | BFD_ASSERT ((sym_out - output_ecoff->external_sym) - output_symhdr->isymMax | |
2478 | == input_symhdr->isymMax); | |
2479 | ||
2480 | /* Copy the information that does not need swapping. */ | |
2481 | memcpy (output_ecoff->line + output_symhdr->cbLine, | |
8fa0d3a0 ILT |
2482 | input_ecoff->line, |
2483 | input_symhdr->cbLine * sizeof (unsigned char)); | |
2484 | memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, | |
2485 | input_ecoff->external_aux, | |
2486 | input_symhdr->iauxMax * sizeof (union aux_ext)); | |
2487 | memcpy (output_ecoff->ss + output_symhdr->issMax, | |
2488 | input_ecoff->ss, | |
2489 | input_symhdr->issMax * sizeof (char)); | |
8fa0d3a0 ILT |
2490 | |
2491 | /* Some of the information may need to be swapped. */ | |
c3fe0c41 ILT |
2492 | if (output_bfd->xvec->header_byteorder_big_p |
2493 | == input_bfd->xvec->header_byteorder_big_p) | |
8fa0d3a0 ILT |
2494 | { |
2495 | /* The two BFD's have the same endianness, so memcpy will | |
2496 | suffice. */ | |
2497 | memcpy (output_ecoff->external_dnr + output_symhdr->idnMax, | |
2498 | input_ecoff->external_dnr, | |
2499 | input_symhdr->idnMax * sizeof (struct dnr_ext)); | |
2500 | memcpy (output_ecoff->external_pdr + output_symhdr->ipdMax, | |
2501 | input_ecoff->external_pdr, | |
2502 | input_symhdr->ipdMax * sizeof (struct pdr_ext)); | |
8fa0d3a0 ILT |
2503 | memcpy (output_ecoff->external_opt + output_symhdr->ioptMax, |
2504 | input_ecoff->external_opt, | |
2505 | input_symhdr->ioptMax * sizeof (struct opt_ext)); | |
2506 | } | |
2507 | else | |
2508 | { | |
2509 | struct dnr_ext *dnr_in; | |
2510 | struct dnr_ext *dnr_end; | |
2511 | struct dnr_ext *dnr_out; | |
2512 | struct pdr_ext *pdr_in; | |
2513 | struct pdr_ext *pdr_end; | |
2514 | struct pdr_ext *pdr_out; | |
8fa0d3a0 ILT |
2515 | struct opt_ext *opt_in; |
2516 | struct opt_ext *opt_end; | |
2517 | struct opt_ext *opt_out; | |
2518 | ||
2519 | /* The two BFD's have different endianness, so we must swap | |
2520 | everything in and out. This code would always work, but it | |
c3fe0c41 | 2521 | would be slow in the normal case. */ |
8fa0d3a0 ILT |
2522 | dnr_in = input_ecoff->external_dnr; |
2523 | dnr_end = dnr_in + input_symhdr->idnMax; | |
2524 | dnr_out = output_ecoff->external_dnr + output_symhdr->idnMax; | |
2525 | for (; dnr_in < dnr_end; dnr_in++, dnr_out++) | |
2526 | { | |
2527 | DNR dnr; | |
2528 | ||
2529 | ecoff_swap_dnr_in (input_bfd, dnr_in, &dnr); | |
2530 | ecoff_swap_dnr_out (output_bfd, &dnr, dnr_out); | |
2531 | } | |
2532 | pdr_in = input_ecoff->external_pdr; | |
2533 | pdr_end = pdr_in + input_symhdr->ipdMax; | |
2534 | pdr_out = output_ecoff->external_pdr + output_symhdr->ipdMax; | |
2535 | for (; pdr_in < pdr_end; pdr_in++, pdr_out++) | |
2536 | { | |
2537 | PDR pdr; | |
2538 | ||
2539 | ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr); | |
2540 | ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out); | |
2541 | } | |
8fa0d3a0 ILT |
2542 | opt_in = input_ecoff->external_opt; |
2543 | opt_end = opt_in + input_symhdr->ioptMax; | |
2544 | opt_out = output_ecoff->external_opt + output_symhdr->ioptMax; | |
2545 | for (; opt_in < opt_end; opt_in++, opt_out++) | |
2546 | { | |
2547 | OPTR opt; | |
2548 | ||
2549 | ecoff_swap_opt_in (input_bfd, opt_in, &opt); | |
2550 | ecoff_swap_opt_out (output_bfd, &opt, opt_out); | |
2551 | } | |
2552 | } | |
2553 | ||
c3fe0c41 ILT |
2554 | /* Set ifdbase so that the external symbols know how to adjust their |
2555 | ifd values. */ | |
2556 | input_ecoff->ifdbase = output_symhdr->ifdMax; | |
2557 | ||
8fa0d3a0 ILT |
2558 | fdr_ptr = input_ecoff->fdr; |
2559 | fdr_end = fdr_ptr + input_symhdr->ifdMax; | |
2560 | fdr_out = output_ecoff->external_fdr + output_symhdr->ifdMax; | |
2561 | for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out++) | |
2562 | { | |
2563 | FDR fdr; | |
2564 | ||
2565 | fdr = *fdr_ptr; | |
2566 | ||
2567 | /* The memory address for this fdr is the address for the seclet | |
2568 | plus the offset to this fdr within input_bfd. */ | |
2569 | fdr.adr = (bfd_get_section_vma (output_bfd, section) | |
2570 | + seclet->offset | |
2571 | + (fdr_ptr->adr - input_ecoff->fdr->adr)); | |
2572 | ||
bf4b84bc ILT |
2573 | fdr.issBase += output_symhdr->issMax; |
2574 | fdr.isymBase += output_symhdr->isymMax; | |
2575 | fdr.ilineBase += output_symhdr->ilineMax; | |
2576 | fdr.ioptBase += output_symhdr->ioptMax; | |
2577 | fdr.ipdFirst += output_symhdr->ipdMax; | |
2578 | fdr.iauxBase += output_symhdr->iauxMax; | |
2579 | fdr.rfdBase += output_symhdr->crfd; | |
c3fe0c41 ILT |
2580 | |
2581 | /* If there are no RFD's, we are going to add some. We don't | |
2582 | want to adjust irfd for this, so that all the FDR's can share | |
2583 | the RFD's. */ | |
2584 | if (input_symhdr->crfd == 0) | |
2585 | fdr.crfd = input_symhdr->ifdMax; | |
2586 | ||
2587 | if (fdr.cbLine != 0) | |
bf4b84bc | 2588 | fdr.cbLineOffset += output_symhdr->cbLine; |
8fa0d3a0 ILT |
2589 | |
2590 | ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out); | |
2591 | } | |
2592 | ||
2593 | if (input_symhdr->crfd > 0) | |
2594 | { | |
2595 | struct rfd_ext *rfd_in; | |
2596 | struct rfd_ext *rfd_end; | |
2597 | struct rfd_ext *rfd_out; | |
2598 | ||
2599 | /* Swap and adjust the RFD's. RFD's are only created by the | |
2600 | linker, so this will only be necessary if one of the input | |
2601 | files is the result of a partial link. Presumably all | |
2602 | necessary RFD's are present. */ | |
2603 | rfd_in = input_ecoff->external_rfd; | |
2604 | rfd_end = rfd_in + input_symhdr->crfd; | |
2605 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2606 | for (; rfd_in < rfd_end; rfd_in++, rfd_out++) | |
2607 | { | |
2608 | RFDT rfd; | |
2609 | ||
2610 | ecoff_swap_rfd_in (input_bfd, rfd_in, &rfd); | |
2611 | rfd += output_symhdr->ifdMax; | |
2612 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2613 | } | |
2614 | output_symhdr->crfd += input_symhdr->crfd; | |
2615 | } | |
2616 | else | |
2617 | { | |
2618 | struct rfd_ext *rfd_out; | |
2619 | struct rfd_ext *rfd_end; | |
2620 | RFDT rfd; | |
2621 | ||
2622 | /* Create RFD's. Some of the debugging information includes | |
2623 | relative file indices. These indices are taken as indices to | |
2624 | the RFD table if there is one, or to the global table if | |
2625 | there is not. If we did not create RFD's, we would have to | |
2626 | parse and adjust all the debugging information which contains | |
2627 | file indices. */ | |
2628 | rfd = output_symhdr->ifdMax; | |
2629 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2630 | rfd_end = rfd_out + input_symhdr->ifdMax; | |
2631 | for (; rfd_out < rfd_end; rfd_out++, rfd++) | |
2632 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2633 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2634 | } | |
2635 | ||
c3fe0c41 ILT |
2636 | /* Combine the register masks. */ |
2637 | { | |
2638 | int i; | |
8fa0d3a0 | 2639 | |
c3fe0c41 ILT |
2640 | output_ecoff->gprmask |= input_ecoff->gprmask; |
2641 | for (i = 0; i < 3; i++) | |
2642 | output_ecoff->cprmask[i] |= input_ecoff->cprmask[i]; | |
2643 | } | |
8fa0d3a0 ILT |
2644 | |
2645 | /* Update the counts. */ | |
2646 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2647 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2648 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2649 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2650 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2651 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2652 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2653 | output_symhdr->issMax += input_symhdr->issMax; | |
8fa0d3a0 | 2654 | output_symhdr->ifdMax += input_symhdr->ifdMax; |
8fa0d3a0 | 2655 | |
8fa0d3a0 ILT |
2656 | return true; |
2657 | } | |
2658 | ||
2659 | /* This is the actual link routine. It makes two passes over all the | |
2660 | seclets. */ | |
2661 | ||
2662 | static boolean | |
2663 | DEFUN (ecoff_bfd_seclet_link, (abfd, data, relocateable), | |
2664 | bfd *abfd AND | |
2665 | PTR data AND | |
2666 | boolean relocateable) | |
2667 | { | |
2668 | HDRR *symhdr; | |
2669 | int ipass; | |
2670 | register asection *o; | |
2671 | register bfd_seclet_type *p; | |
c3fe0c41 | 2672 | asymbol **sym_ptr_ptr; |
8fa0d3a0 ILT |
2673 | bfd_size_type size; |
2674 | char *raw; | |
2675 | ||
2676 | /* We accumulate the debugging information counts in the symbolic | |
2677 | header. */ | |
2678 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
c3fe0c41 ILT |
2679 | symhdr->magic = magicSym; |
2680 | /* FIXME: What should the version stamp be? */ | |
2681 | symhdr->vstamp = 0; | |
8fa0d3a0 ILT |
2682 | symhdr->ilineMax = 0; |
2683 | symhdr->cbLine = 0; | |
2684 | symhdr->idnMax = 0; | |
2685 | symhdr->ipdMax = 0; | |
2686 | symhdr->isymMax = 0; | |
2687 | symhdr->ioptMax = 0; | |
2688 | symhdr->iauxMax = 0; | |
2689 | symhdr->issMax = 0; | |
2690 | symhdr->issExtMax = 0; | |
2691 | symhdr->ifdMax = 0; | |
2692 | symhdr->crfd = 0; | |
2693 | symhdr->iextMax = 0; | |
2694 | ||
c3fe0c41 ILT |
2695 | /* We need to copy over the debugging symbols from each input BFD. |
2696 | When we do this copying, we have to adjust the text address in | |
2697 | the FDR structures, so we have to know the text address used for | |
2698 | the input BFD. Since we only want to copy the symbols once per | |
2699 | input BFD, but we are going to look at each input BFD multiple | |
2700 | times (once for each section it provides), we arrange to always | |
2701 | look at the text section first. That means that when we copy the | |
2702 | debugging information, we always know the text address. So we | |
2703 | actually do each pass in two sub passes; first the text sections, | |
2704 | then the non-text sections. We use the output_has_begun flag to | |
2705 | determine whether we have copied over the debugging information | |
2706 | yet. */ | |
8fa0d3a0 ILT |
2707 | |
2708 | /* Do the first pass: set the output section contents and count the | |
2709 | debugging information. */ | |
2710 | ecoff_clear_output_flags (abfd); | |
2711 | for (ipass = 0; ipass < 2; ipass++) | |
2712 | { | |
2713 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2714 | { | |
2715 | /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, | |
2716 | so they are done on pass 0. For other sections the | |
2717 | expression is true, so they are done on pass 1. */ | |
2718 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2719 | continue; | |
2720 | ||
2721 | for (p = o->seclets_head; | |
2722 | p != (bfd_seclet_type *) NULL; | |
2723 | p = p->next) | |
2724 | { | |
2725 | if (ecoff_dump_seclet (abfd, p, o, data, relocateable) | |
2726 | == false) | |
2727 | return false; | |
2728 | } | |
2729 | } | |
2730 | } | |
2731 | ||
c3fe0c41 ILT |
2732 | /* We handle the external symbols differently. We use the ones |
2733 | attached to the output_bfd. The linker will have already | |
2734 | determined which symbols are to be attached. Here we just | |
2735 | determine how much space we will need for them. */ | |
2736 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2737 | if (sym_ptr_ptr != NULL) | |
2738 | { | |
2739 | asymbol **sym_end; | |
2740 | ||
2741 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
2742 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
2743 | { | |
2744 | if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0 | |
2745 | && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0) | |
2746 | { | |
2747 | ++symhdr->iextMax; | |
2748 | symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1; | |
2749 | } | |
2750 | } | |
2751 | } | |
2752 | ||
2753 | /* Adjust the counts so that structures are longword aligned. */ | |
2754 | symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; | |
2755 | symhdr->issMax = (symhdr->issMax + 3) &~ 3; | |
2756 | symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; | |
2757 | ||
8fa0d3a0 ILT |
2758 | /* Now the counts in symhdr are the correct size for the debugging |
2759 | information. We allocate the right amount of space, and reset | |
2760 | the counts so that the second pass can use them as indices. It | |
2761 | would be possible to output the debugging information directly to | |
2762 | the file in pass 2, rather than to build it in memory and then | |
2763 | write it out. Outputting to the file would require a lot of | |
2764 | seeks and small writes, though, and I think this approach is | |
2765 | faster. */ | |
2766 | size = (symhdr->cbLine * sizeof (unsigned char) | |
2767 | + symhdr->idnMax * sizeof (struct dnr_ext) | |
2768 | + symhdr->ipdMax * sizeof (struct pdr_ext) | |
2769 | + symhdr->isymMax * sizeof (struct sym_ext) | |
2770 | + symhdr->ioptMax * sizeof (struct opt_ext) | |
2771 | + symhdr->iauxMax * sizeof (union aux_ext) | |
2772 | + symhdr->issMax * sizeof (char) | |
2773 | + symhdr->issExtMax * sizeof (char) | |
2774 | + symhdr->ifdMax * sizeof (struct fdr_ext) | |
2775 | + symhdr->crfd * sizeof (struct rfd_ext) | |
2776 | + symhdr->iextMax * sizeof (struct ext_ext)); | |
2777 | raw = (char *) bfd_alloc (abfd, size); | |
2778 | if (raw == (char *) NULL) | |
2779 | { | |
2780 | bfd_error = no_memory; | |
2781 | return false; | |
2782 | } | |
2783 | ecoff_data (abfd)->raw_size = size; | |
2784 | ecoff_data (abfd)->raw_syments = (PTR) raw; | |
2785 | ||
2786 | /* Initialize the raw pointers. */ | |
2787 | #define SET(field, count, type) \ | |
2788 | ecoff_data (abfd)->field = (type *) raw; \ | |
2789 | raw += symhdr->count * sizeof (type) | |
2790 | ||
2791 | SET (line, cbLine, unsigned char); | |
2792 | SET (external_dnr, idnMax, struct dnr_ext); | |
2793 | SET (external_pdr, ipdMax, struct pdr_ext); | |
2794 | SET (external_sym, isymMax, struct sym_ext); | |
2795 | SET (external_opt, ioptMax, struct opt_ext); | |
2796 | SET (external_aux, iauxMax, union aux_ext); | |
2797 | SET (ss, issMax, char); | |
2798 | SET (ssext, issExtMax, char); | |
2799 | SET (external_fdr, ifdMax, struct fdr_ext); | |
2800 | SET (external_rfd, crfd, struct rfd_ext); | |
2801 | SET (external_ext, iextMax, struct ext_ext); | |
2802 | #undef SET | |
2803 | ||
2804 | /* Reset the counts so the second pass can use them to know how far | |
2805 | it has gotten. */ | |
2806 | symhdr->ilineMax = 0; | |
2807 | symhdr->cbLine = 0; | |
2808 | symhdr->idnMax = 0; | |
2809 | symhdr->ipdMax = 0; | |
2810 | symhdr->isymMax = 0; | |
2811 | symhdr->ioptMax = 0; | |
2812 | symhdr->iauxMax = 0; | |
2813 | symhdr->issMax = 0; | |
2814 | symhdr->issExtMax = 0; | |
2815 | symhdr->ifdMax = 0; | |
2816 | symhdr->crfd = 0; | |
2817 | symhdr->iextMax = 0; | |
2818 | ||
2819 | /* Do the second pass: accumulate the debugging information. */ | |
2820 | ecoff_clear_output_flags (abfd); | |
2821 | for (ipass = 0; ipass < 2; ipass++) | |
2822 | { | |
2823 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2824 | { | |
2825 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2826 | continue; | |
2827 | for (p = o->seclets_head; | |
2828 | p != (bfd_seclet_type *) NULL; | |
2829 | p = p->next) | |
2830 | { | |
2831 | if (p->type == bfd_indirect_seclet) | |
2832 | { | |
2833 | if (ecoff_get_debug (abfd, p, o) == false) | |
2834 | return false; | |
2835 | } | |
2836 | } | |
2837 | } | |
2838 | } | |
2839 | ||
c3fe0c41 ILT |
2840 | /* Put in the external symbols. */ |
2841 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2842 | if (sym_ptr_ptr != NULL) | |
2843 | { | |
2844 | char *ssext; | |
2845 | struct ext_ext *external_ext; | |
2846 | ||
2847 | ssext = ecoff_data (abfd)->ssext; | |
2848 | external_ext = ecoff_data (abfd)->external_ext; | |
2849 | for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++) | |
2850 | { | |
2851 | asymbol *sym_ptr; | |
2852 | EXTR esym; | |
2853 | ||
2854 | sym_ptr = *sym_ptr_ptr; | |
2855 | ||
2856 | if ((sym_ptr->flags & BSF_DEBUGGING) != 0 | |
2857 | || (sym_ptr->flags & BSF_LOCAL) != 0) | |
2858 | continue; | |
2859 | ||
2860 | /* The enative pointer can be NULL for a symbol created by | |
2861 | the linker via ecoff_make_empty_symbol. */ | |
2862 | if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour | |
2863 | || (((ecoff_symbol_type *) sym_ptr)->native.enative | |
2864 | == (struct ext_ext *) NULL)) | |
2865 | { | |
2866 | esym.jmptbl = 0; | |
2867 | esym.cobol_main = 0; | |
2868 | esym.weakext = 0; | |
2869 | esym.reserved = 0; | |
2870 | esym.ifd = ifdNil; | |
2871 | /* FIXME: we can do better than this for st and sc. */ | |
2872 | esym.asym.st = stGlobal; | |
2873 | esym.asym.sc = scAbs; | |
2874 | esym.asym.reserved = 0; | |
2875 | esym.asym.index = indexNil; | |
2876 | } | |
2877 | else | |
2878 | { | |
2879 | ecoff_symbol_type *ecoff_sym_ptr; | |
2880 | ||
2881 | ecoff_sym_ptr = (ecoff_symbol_type *) sym_ptr; | |
2882 | if (ecoff_sym_ptr->local) | |
2883 | abort (); | |
2884 | ecoff_swap_ext_in (abfd, ecoff_sym_ptr->native.enative, &esym); | |
2885 | ||
2886 | /* Adjust the FDR index for the symbol by that used for | |
2887 | the input BFD. */ | |
2888 | esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase; | |
2889 | } | |
2890 | ||
2891 | esym.asym.iss = symhdr->issExtMax; | |
2892 | ||
382f2a3d | 2893 | if (bfd_is_com_section (sym_ptr->section) |
c3fe0c41 ILT |
2894 | || sym_ptr->section == &bfd_und_section) |
2895 | esym.asym.value = sym_ptr->value; | |
2896 | else | |
2897 | esym.asym.value = (sym_ptr->value | |
2898 | + sym_ptr->section->output_offset | |
2899 | + sym_ptr->section->output_section->vma); | |
2900 | ||
2901 | ecoff_swap_ext_out (abfd, &esym, external_ext + symhdr->iextMax); | |
2902 | ||
2903 | ecoff_set_sym_index (sym_ptr, symhdr->iextMax); | |
2904 | ||
2905 | ++symhdr->iextMax; | |
2906 | ||
2907 | strcpy (ssext + symhdr->issExtMax, sym_ptr->name); | |
2908 | symhdr->issExtMax += strlen (sym_ptr->name) + 1; | |
2909 | } | |
2910 | } | |
2911 | ||
2912 | /* Adjust the counts so that structures are longword aligned. */ | |
2913 | symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; | |
2914 | symhdr->issMax = (symhdr->issMax + 3) &~ 3; | |
2915 | symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; | |
2916 | ||
8fa0d3a0 ILT |
2917 | return true; |
2918 | } | |
2919 | \f | |
2920 | /* Set the architecture. The only architecture we support here is | |
2921 | mips. We set the architecture anyhow, since many callers ignore | |
2922 | the return value. */ | |
2923 | ||
2924 | static boolean | |
2925 | DEFUN (ecoff_set_arch_mach, (abfd, arch, machine), | |
2926 | bfd *abfd AND | |
2927 | enum bfd_architecture arch AND | |
2928 | unsigned long machine) | |
2929 | { | |
2930 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2931 | return arch == bfd_arch_mips; | |
2932 | } | |
2933 | ||
2934 | /* Calculate the file position for each section, and set | |
2935 | reloc_filepos. */ | |
2936 | ||
2937 | static void | |
2938 | DEFUN (ecoff_compute_section_file_positions, (abfd), | |
2939 | bfd *abfd) | |
2940 | { | |
2941 | asection *current; | |
8fa0d3a0 ILT |
2942 | file_ptr sofar; |
2943 | file_ptr old_sofar; | |
c3fe0c41 | 2944 | boolean first_data; |
8fa0d3a0 ILT |
2945 | |
2946 | sofar = FILHSZ; | |
2947 | ||
2948 | if (bfd_get_start_address (abfd)) | |
c3fe0c41 | 2949 | abfd->flags |= EXEC_P; |
8fa0d3a0 | 2950 | |
c3fe0c41 ILT |
2951 | /* Unlike normal COFF, ECOFF always use the ``optional'' header. */ |
2952 | sofar += AOUTSZ; | |
8fa0d3a0 ILT |
2953 | |
2954 | sofar += abfd->section_count * SCNHSZ; | |
2955 | ||
c3fe0c41 | 2956 | first_data = true; |
8fa0d3a0 ILT |
2957 | for (current = abfd->sections; |
2958 | current != (asection *) NULL; | |
2959 | current = current->next) | |
2960 | { | |
2961 | /* Only deal with sections which have contents */ | |
2962 | if (! (current->flags & SEC_HAS_CONTENTS)) | |
2963 | continue; | |
2964 | ||
c3fe0c41 ILT |
2965 | /* On Ultrix, the data sections in an executable file must be |
2966 | aligned to a page boundary within the file. This does not | |
2967 | affect the section size, though. FIXME: Does this work for | |
2968 | other platforms? */ | |
2969 | if ((abfd->flags & EXEC_P) != 0 | |
2970 | && first_data != false | |
2971 | && (current->flags & SEC_CODE) == 0) | |
2972 | { | |
2973 | sofar = (sofar + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
2974 | first_data = false; | |
2975 | } | |
2976 | ||
8fa0d3a0 ILT |
2977 | /* Align the sections in the file to the same boundary on |
2978 | which they are aligned in virtual memory. */ | |
2979 | old_sofar = sofar; | |
2980 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
8fa0d3a0 ILT |
2981 | |
2982 | current->filepos = sofar; | |
2983 | ||
2984 | sofar += current->_raw_size; | |
2985 | ||
2986 | /* make sure that this section is of the right size too */ | |
2987 | old_sofar = sofar; | |
2988 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2989 | current->_raw_size += sofar - old_sofar; | |
8fa0d3a0 ILT |
2990 | } |
2991 | ||
2992 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2993 | } | |
2994 | ||
2995 | /* Set the contents of a section. */ | |
2996 | ||
2997 | static boolean | |
2998 | DEFUN (ecoff_set_section_contents, (abfd, section, location, offset, count), | |
2999 | bfd *abfd AND | |
b6bef862 | 3000 | asection *section AND |
8fa0d3a0 ILT |
3001 | PTR location AND |
3002 | file_ptr offset AND | |
3003 | bfd_size_type count) | |
3004 | { | |
3005 | if (abfd->output_has_begun == false) | |
3006 | ecoff_compute_section_file_positions (abfd); | |
3007 | ||
3008 | bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); | |
3009 | ||
3010 | if (count != 0) | |
3011 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
3012 | ||
3013 | return true; | |
3014 | } | |
3015 | ||
3016 | /* Write out an ECOFF file. */ | |
3017 | ||
3018 | static boolean | |
3019 | DEFUN (ecoff_write_object_contents, (abfd), | |
3020 | bfd *abfd) | |
3021 | { | |
3022 | asection *current; | |
3023 | unsigned int count; | |
3024 | file_ptr scn_base; | |
3025 | file_ptr reloc_base; | |
3026 | file_ptr sym_base; | |
3027 | unsigned long reloc_size; | |
3028 | unsigned long text_size; | |
3029 | unsigned long text_start; | |
3030 | unsigned long data_size; | |
3031 | unsigned long data_start; | |
3032 | unsigned long bss_size; | |
3033 | struct internal_filehdr internal_f; | |
3034 | struct internal_aouthdr internal_a; | |
c3fe0c41 | 3035 | int i; |
8fa0d3a0 ILT |
3036 | |
3037 | bfd_error = system_call_error; | |
3038 | ||
3039 | if(abfd->output_has_begun == false) | |
3040 | ecoff_compute_section_file_positions(abfd); | |
3041 | ||
3042 | if (abfd->sections != (asection *) NULL) | |
3043 | scn_base = abfd->sections->filepos; | |
3044 | else | |
3045 | scn_base = 0; | |
3046 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
3047 | ||
3048 | count = 1; | |
3049 | reloc_size = 0; | |
3050 | for (current = abfd->sections; | |
3051 | current != (asection *)NULL; | |
3052 | current = current->next) | |
3053 | { | |
3054 | current->target_index = count; | |
3055 | ++count; | |
3056 | if (current->reloc_count != 0) | |
3057 | { | |
3058 | bfd_size_type relsize; | |
3059 | ||
3060 | current->rel_filepos = reloc_base; | |
3061 | relsize = current->reloc_count * RELSZ; | |
3062 | reloc_size += relsize; | |
3063 | reloc_base += relsize; | |
3064 | } | |
3065 | else | |
3066 | current->rel_filepos = 0; | |
3067 | } | |
3068 | ||
3069 | sym_base = reloc_base + reloc_size; | |
c3fe0c41 ILT |
3070 | |
3071 | /* At least on Ultrix, the symbol table of an executable file must | |
3072 | be aligned to a page boundary. FIXME: Is this true on other | |
3073 | platforms? */ | |
3074 | if ((abfd->flags & EXEC_P) != 0) | |
3075 | sym_base = (sym_base + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3076 | ||
8fa0d3a0 ILT |
3077 | ecoff_data (abfd)->sym_filepos = sym_base; |
3078 | ||
23ba15b7 | 3079 | text_size = FILHSZ + AOUTSZ + abfd->section_count * SCNHSZ; |
8fa0d3a0 ILT |
3080 | text_start = 0; |
3081 | data_size = 0; | |
3082 | data_start = 0; | |
3083 | bss_size = 0; | |
3084 | ||
3085 | /* Write section headers to the file. */ | |
3086 | ||
3087 | internal_f.f_nscns = 0; | |
c3fe0c41 | 3088 | if (bfd_seek (abfd, (file_ptr) (FILHSZ + AOUTSZ), SEEK_SET) != 0) |
8fa0d3a0 ILT |
3089 | return false; |
3090 | for (current = abfd->sections; | |
3091 | current != (asection *) NULL; | |
3092 | current = current->next) | |
3093 | { | |
3094 | struct internal_scnhdr section; | |
3095 | bfd_vma vma; | |
3096 | ||
3097 | ++internal_f.f_nscns; | |
3098 | ||
3099 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
3100 | ||
3101 | /* FIXME: is this correct for shared libraries? I think it is | |
3102 | but I have no platform to check. Ian Lance Taylor. */ | |
3103 | vma = bfd_get_section_vma (abfd, current); | |
3104 | if (strcmp (current->name, _LIB) == 0) | |
3105 | section.s_vaddr = 0; | |
3106 | else | |
3107 | section.s_vaddr = vma; | |
3108 | ||
3109 | section.s_paddr = vma; | |
3110 | section.s_size = bfd_get_section_size_before_reloc (current); | |
3111 | ||
3112 | /* If this section has no size or is unloadable then the scnptr | |
3113 | will be 0 too. */ | |
3114 | if (current->_raw_size == 0 | |
3115 | || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
3116 | section.s_scnptr = 0; | |
3117 | else | |
3118 | section.s_scnptr = current->filepos; | |
3119 | section.s_relptr = current->rel_filepos; | |
3120 | ||
3121 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
3122 | object file produced by the assembler is supposed to point to | |
3123 | information about how much room is required by objects of | |
3124 | various different sizes. I think this only matters if we | |
3125 | want the linker to compute the best size to use, or | |
3126 | something. I don't know what happens if the information is | |
3127 | not present. */ | |
3128 | section.s_lnnoptr = 0; | |
3129 | ||
3130 | section.s_nreloc = current->reloc_count; | |
3131 | section.s_nlnno = 0; | |
3132 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
3133 | ||
3134 | { | |
3135 | SCNHDR buff; | |
3136 | ||
3137 | ecoff_swap_scnhdr_out (abfd, (PTR) §ion, (PTR) &buff); | |
3138 | if (bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) | |
3139 | return false; | |
3140 | } | |
3141 | ||
c3fe0c41 | 3142 | if ((section.s_flags & STYP_TEXT) != 0) |
8fa0d3a0 ILT |
3143 | { |
3144 | text_size += bfd_get_section_size_before_reloc (current); | |
3145 | if (text_start == 0 || text_start > vma) | |
3146 | text_start = vma; | |
3147 | } | |
c3fe0c41 ILT |
3148 | else if ((section.s_flags & STYP_RDATA) != 0 |
3149 | || (section.s_flags & STYP_DATA) != 0 | |
3150 | || (section.s_flags & STYP_LIT8) != 0 | |
3151 | || (section.s_flags & STYP_LIT4) != 0 | |
8fa0d3a0 ILT |
3152 | || (section.s_flags & STYP_SDATA) != 0) |
3153 | { | |
3154 | data_size += bfd_get_section_size_before_reloc (current); | |
3155 | if (data_start == 0 || data_start > vma) | |
3156 | data_start = vma; | |
3157 | } | |
3158 | else if ((section.s_flags & STYP_BSS) != 0 | |
3159 | || (section.s_flags & STYP_SBSS) != 0) | |
3160 | bss_size += bfd_get_section_size_before_reloc (current); | |
3161 | } | |
3162 | ||
3163 | /* Set up the file header. */ | |
3164 | ||
3165 | internal_f.f_magic = MIPS_MAGIC_2; | |
3166 | ||
3167 | /* | |
3168 | We will NOT put a fucking timestamp in the header here. Every time you | |
3169 | put it back, I will come in and take it out again. I'm sorry. This | |
3170 | field does not belong here. We fill it with a 0 so it compares the | |
3171 | same but is not a reasonable time. -- gnu@cygnus.com | |
3172 | */ | |
3173 | internal_f.f_timdat = 0; | |
3174 | ||
c3fe0c41 ILT |
3175 | if (bfd_get_symcount (abfd) != 0) |
3176 | { | |
3177 | /* The ECOFF f_nsyms field is not actually the number of | |
3178 | symbols, it's the size of symbolic information header. */ | |
3179 | internal_f.f_nsyms = sizeof (struct hdr_ext); | |
3180 | internal_f.f_symptr = sym_base; | |
3181 | } | |
8fa0d3a0 | 3182 | else |
c3fe0c41 ILT |
3183 | { |
3184 | internal_f.f_nsyms = 0; | |
3185 | internal_f.f_symptr = 0; | |
3186 | } | |
8fa0d3a0 | 3187 | |
c3fe0c41 | 3188 | internal_f.f_opthdr = AOUTSZ; |
8fa0d3a0 | 3189 | |
c3fe0c41 | 3190 | internal_f.f_flags = F_LNNO; |
8fa0d3a0 ILT |
3191 | if (reloc_size == 0) |
3192 | internal_f.f_flags |= F_RELFLG; | |
3193 | if (bfd_get_symcount (abfd) == 0) | |
3194 | internal_f.f_flags |= F_LSYMS; | |
3195 | if (abfd->flags & EXEC_P) | |
3196 | internal_f.f_flags |= F_EXEC; | |
3197 | ||
3198 | if (! abfd->xvec->byteorder_big_p) | |
3199 | internal_f.f_flags |= F_AR32WR; | |
3200 | else | |
3201 | internal_f.f_flags |= F_AR32W; | |
3202 | ||
c3fe0c41 ILT |
3203 | /* Set up the ``optional'' header. */ |
3204 | internal_a.magic = ZMAGIC; | |
3205 | ||
3206 | /* FIXME: What should this be? */ | |
3207 | internal_a.vstamp = 0; | |
3208 | ||
3209 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
3210 | FIXME: Is this true on other platforms? */ | |
3211 | internal_a.tsize = (text_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3212 | internal_a.text_start = text_start &~ (PAGE_SIZE - 1); | |
3213 | internal_a.dsize = (data_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3214 | internal_a.data_start = data_start &~ (PAGE_SIZE - 1); | |
3215 | ||
3216 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
3217 | are at the end of the data section. The bsize field in the | |
3218 | optional header records how many bss bytes are required beyond | |
3219 | those in the data section. The value is not rounded to a page | |
3220 | boundary. */ | |
3221 | if (bss_size < internal_a.dsize - data_size) | |
3222 | bss_size = 0; | |
3223 | else | |
3224 | bss_size -= internal_a.dsize - data_size; | |
3225 | internal_a.bsize = bss_size; | |
3226 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
8fa0d3a0 | 3227 | |
c3fe0c41 | 3228 | internal_a.entry = bfd_get_start_address (abfd); |
8fa0d3a0 | 3229 | |
c3fe0c41 | 3230 | internal_a.gp_value = ecoff_data (abfd)->gp; |
8fa0d3a0 | 3231 | |
c3fe0c41 ILT |
3232 | internal_a.gprmask = ecoff_data (abfd)->gprmask; |
3233 | for (i = 0; i < 3; i++) | |
3234 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
8fa0d3a0 ILT |
3235 | |
3236 | /* Write out the file header and the optional header. */ | |
3237 | ||
3238 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
3239 | return false; | |
3240 | ||
3241 | { | |
3242 | FILHDR buff; | |
3243 | ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff); | |
3244 | if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ) | |
3245 | return false; | |
3246 | } | |
3247 | ||
c3fe0c41 ILT |
3248 | { |
3249 | AOUTHDR buff; | |
3250 | ||
3251 | ecoff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
3252 | if (bfd_write ((PTR) &buff, 1, AOUTSZ, abfd) != AOUTSZ) | |
3253 | return false; | |
3254 | } | |
3255 | ||
3256 | /* Write out the relocs. */ | |
3257 | for (current = abfd->sections; | |
3258 | current != (asection *) NULL; | |
3259 | current = current->next) | |
8fa0d3a0 | 3260 | { |
c3fe0c41 ILT |
3261 | RELOC *buff; |
3262 | arelent **reloc_ptr_ptr; | |
3263 | arelent **reloc_end; | |
3264 | RELOC *out_ptr; | |
3265 | ||
3266 | if (current->reloc_count == 0) | |
3267 | continue; | |
8fa0d3a0 | 3268 | |
c3fe0c41 ILT |
3269 | buff = (RELOC *) bfd_alloc (abfd, current->reloc_count * RELSZ); |
3270 | if (buff == (RELOC *) NULL) | |
3271 | { | |
3272 | bfd_error = no_memory; | |
3273 | return false; | |
3274 | } | |
3275 | ||
3276 | reloc_ptr_ptr = current->orelocation; | |
3277 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
3278 | out_ptr = buff; | |
3279 | for (; reloc_ptr_ptr < reloc_end; reloc_ptr_ptr++, out_ptr++) | |
3280 | { | |
3281 | arelent *reloc; | |
3282 | asymbol *sym; | |
3283 | struct internal_reloc in; | |
3284 | ||
3285 | memset (&in, 0, sizeof in); | |
3286 | ||
3287 | reloc = *reloc_ptr_ptr; | |
3288 | sym = *reloc->sym_ptr_ptr; | |
3289 | ||
3290 | in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current); | |
3291 | in.r_type = reloc->howto->type; | |
3292 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3293 | { | |
3294 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
3295 | in.r_extern = 1; | |
3296 | } | |
3297 | else | |
3298 | { | |
3299 | CONST char *name; | |
3300 | ||
3301 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
3302 | if (strcmp (name, ".text") == 0) | |
3303 | in.r_symndx = RELOC_SECTION_TEXT; | |
3304 | else if (strcmp (name, ".rdata") == 0) | |
3305 | in.r_symndx = RELOC_SECTION_RDATA; | |
3306 | else if (strcmp (name, ".data") == 0) | |
3307 | in.r_symndx = RELOC_SECTION_DATA; | |
3308 | else if (strcmp (name, ".sdata") == 0) | |
3309 | in.r_symndx = RELOC_SECTION_SDATA; | |
3310 | else if (strcmp (name, ".sbss") == 0) | |
3311 | in.r_symndx = RELOC_SECTION_SBSS; | |
3312 | else if (strcmp (name, ".bss") == 0) | |
3313 | in.r_symndx = RELOC_SECTION_BSS; | |
3314 | else if (strcmp (name, ".init") == 0) | |
3315 | in.r_symndx = RELOC_SECTION_INIT; | |
3316 | else if (strcmp (name, ".lit8") == 0) | |
3317 | in.r_symndx = RELOC_SECTION_LIT8; | |
3318 | else if (strcmp (name, ".lit4") == 0) | |
3319 | in.r_symndx = RELOC_SECTION_LIT4; | |
3320 | else | |
3321 | abort (); | |
3322 | in.r_extern = 0; | |
3323 | } | |
3324 | ||
3325 | ecoff_swap_reloc_out (abfd, (PTR) &in, (PTR) out_ptr); | |
3326 | } | |
3327 | ||
3328 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
8fa0d3a0 | 3329 | return false; |
c3fe0c41 ILT |
3330 | if (bfd_write ((PTR) buff, RELSZ, current->reloc_count, abfd) |
3331 | != RELSZ * current->reloc_count) | |
3332 | return false; | |
3333 | bfd_release (abfd, (PTR) buff); | |
8fa0d3a0 ILT |
3334 | } |
3335 | ||
8fa0d3a0 ILT |
3336 | /* Write out the symbolic debugging information. */ |
3337 | if (bfd_get_symcount (abfd) > 0) | |
3338 | { | |
c3fe0c41 ILT |
3339 | HDRR *symhdr; |
3340 | unsigned long sym_offset; | |
8fa0d3a0 ILT |
3341 | struct hdr_ext buff; |
3342 | ||
c3fe0c41 ILT |
3343 | /* Set up the offsets in the symbolic header. */ |
3344 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
3345 | sym_offset = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); | |
3346 | ||
3347 | #define SET(offset, size, ptr) \ | |
3348 | if (symhdr->size == 0) \ | |
3349 | symhdr->offset = 0; \ | |
3350 | else \ | |
3351 | symhdr->offset = (((char *) ecoff_data (abfd)->ptr \ | |
3352 | - (char *) ecoff_data (abfd)->raw_syments) \ | |
3353 | + sym_offset); | |
3354 | ||
3355 | SET (cbLineOffset, cbLine, line); | |
3356 | SET (cbDnOffset, idnMax, external_dnr); | |
3357 | SET (cbPdOffset, ipdMax, external_pdr); | |
3358 | SET (cbSymOffset, isymMax, external_sym); | |
3359 | SET (cbOptOffset, ioptMax, external_opt); | |
3360 | SET (cbAuxOffset, iauxMax, external_aux); | |
3361 | SET (cbSsOffset, issMax, ss); | |
3362 | SET (cbSsExtOffset, issExtMax, ssext); | |
3363 | SET (cbFdOffset, ifdMax, external_fdr); | |
3364 | SET (cbRfdOffset, crfd, external_rfd); | |
3365 | SET (cbExtOffset, iextMax, external_ext); | |
3366 | #undef SET | |
3367 | ||
3368 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos, | |
3369 | SEEK_SET) != 0) | |
3370 | return false; | |
8fa0d3a0 ILT |
3371 | ecoff_swap_hdr_out (abfd, &ecoff_data (abfd)->symbolic_header, &buff); |
3372 | if (bfd_write ((PTR) &buff, 1, sizeof buff, abfd) != sizeof buff) | |
3373 | return false; | |
3374 | if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, | |
3375 | ecoff_data (abfd)->raw_size, abfd) | |
3376 | != ecoff_data (abfd)->raw_size) | |
3377 | return false; | |
3378 | } | |
3379 | ||
3380 | return true; | |
3381 | } | |
3382 | \f | |
c3fe0c41 ILT |
3383 | /* Archive handling. ECOFF uses what appears to be a unique type of |
3384 | archive header (which I call an armap). The byte ordering of the | |
3385 | armap and the contents are encoded in the name of the armap itself. | |
3386 | At least for now, we only support archives with the same byte | |
3387 | ordering in the armap and the contents. | |
3388 | ||
3389 | The first four bytes in the armap are the number of symbol | |
23ba15b7 | 3390 | definitions. This is always a power of two. |
c3fe0c41 ILT |
3391 | |
3392 | This is followed by the symbol definitions. Each symbol definition | |
3393 | occupies 8 bytes. The first four bytes are the offset from the | |
3394 | start of the armap strings to the null-terminated string naming | |
3395 | this symbol. The second four bytes are the file offset to the | |
3396 | archive member which defines this symbol. If the second four bytes | |
3397 | are 0, then this is not actually a symbol definition, and it should | |
3398 | be ignored. | |
3399 | ||
23ba15b7 ILT |
3400 | The symbols are hashed into the armap with a closed hashing scheme. |
3401 | See the functions below for the details of the algorithm. | |
3402 | ||
3403 | We could use the hash table when looking up symbols in a library. | |
3404 | This would require a new BFD target entry point to replace the | |
3405 | bfd_get_next_mapent function used by the linker. | |
3406 | ||
c3fe0c41 ILT |
3407 | After the symbol definitions comes four bytes holding the size of |
3408 | the string table, followed by the string table itself. */ | |
3409 | ||
3410 | /* The name of an archive headers looks like this: | |
23ba15b7 ILT |
3411 | __________E[BL]E[BL]_ (with a trailing space). |
3412 | The trailing space is changed to an X if the archive is changed to | |
3413 | indicate that the armap is out of date. */ | |
c3fe0c41 ILT |
3414 | |
3415 | #define ARMAP_BIG_ENDIAN 'B' | |
3416 | #define ARMAP_LITTLE_ENDIAN 'L' | |
3417 | #define ARMAP_MARKER 'E' | |
3418 | #define ARMAP_START "__________" | |
3419 | #define ARMAP_HEADER_MARKER_INDEX 10 | |
3420 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
3421 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
3422 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
3423 | #define ARMAP_END_INDEX 14 | |
3424 | #define ARMAP_END "_ " | |
3425 | ||
23ba15b7 ILT |
3426 | /* This is a magic number used in the hashing algorithm. */ |
3427 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
3428 | ||
3429 | /* This returns the hash value to use for a string. It also sets | |
3430 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
3431 | is the number of entries in the hash table, and HLOG is the log | |
3432 | base 2 of SIZE. */ | |
3433 | ||
3434 | static unsigned int | |
3435 | ecoff_armap_hash (s, rehash, size, hlog) | |
3436 | CONST char *s; | |
3437 | unsigned int *rehash; | |
3438 | unsigned int size; | |
3439 | unsigned int hlog; | |
3440 | { | |
3441 | unsigned int hash; | |
3442 | ||
3443 | hash = *s++; | |
3444 | while (*s != '\0') | |
3445 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
3446 | hash *= ARMAP_HASH_MAGIC; | |
3447 | *rehash = (hash & (size - 1)) | 1; | |
3448 | return hash >> (32 - hlog); | |
3449 | } | |
3450 | ||
c3fe0c41 ILT |
3451 | /* Read in the armap. */ |
3452 | ||
3453 | static boolean | |
3454 | DEFUN (ecoff_slurp_armap, (abfd), | |
3455 | bfd *abfd) | |
3456 | { | |
3457 | char nextname[17]; | |
3458 | unsigned int i; | |
3459 | struct areltdata *mapdata; | |
3460 | bfd_size_type parsed_size; | |
3461 | char *raw_armap; | |
3462 | struct artdata *ardata; | |
3463 | unsigned int count; | |
3464 | char *raw_ptr; | |
3465 | struct symdef *symdef_ptr; | |
3466 | char *stringbase; | |
3467 | ||
3468 | /* Get the name of the first element. */ | |
3469 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3470 | if (i == 0) | |
3471 | return true; | |
3472 | if (i != 16) | |
3473 | return false; | |
3474 | ||
3475 | bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); | |
3476 | ||
3477 | /* See if the first element is an armap. */ | |
3478 | if (strncmp (nextname, ARMAP_START, sizeof ARMAP_START - 1) != 0 | |
3479 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER | |
3480 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3481 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3482 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3483 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3484 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3485 | || strncmp (nextname + ARMAP_END_INDEX, | |
3486 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3487 | { | |
3488 | bfd_has_map (abfd) = false; | |
3489 | return true; | |
3490 | } | |
3491 | ||
3492 | /* Make sure we have the right byte ordering. */ | |
3493 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3494 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3495 | || ((nextname[ARMAP_OBJECT_MARKER_INDEX] == ARMAP_BIG_ENDIAN) | |
3496 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3497 | { | |
3498 | bfd_error = wrong_format; | |
3499 | return false; | |
3500 | } | |
3501 | ||
3502 | /* Read in the armap. */ | |
3503 | ardata = bfd_ardata (abfd); | |
3504 | mapdata = snarf_ar_hdr (abfd); | |
3505 | if (mapdata == (struct areltdata *) NULL) | |
3506 | return false; | |
3507 | parsed_size = mapdata->parsed_size; | |
3508 | bfd_release (abfd, (PTR) mapdata); | |
3509 | ||
3510 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3511 | if (raw_armap == (char *) NULL) | |
3512 | { | |
3513 | bfd_error = no_memory; | |
3514 | return false; | |
3515 | } | |
3516 | ||
3517 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3518 | { | |
3519 | bfd_error = malformed_archive; | |
3520 | bfd_release (abfd, (PTR) raw_armap); | |
3521 | return false; | |
3522 | } | |
3523 | ||
3524 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); | |
3525 | ||
3526 | ardata->symdef_count = 0; | |
3527 | ardata->cache = (struct ar_cache *) NULL; | |
3528 | ||
3529 | /* Hack: overlay the symdefs on top of the raw archive data. This | |
3530 | is the way do_slurp_bsd_armap works. */ | |
3531 | raw_ptr = raw_armap + LONG_SIZE; | |
3532 | symdef_ptr = (struct symdef *) raw_ptr; | |
3533 | ardata->symdefs = (carsym *) symdef_ptr; | |
3534 | stringbase = raw_ptr + count * (2 * LONG_SIZE) + LONG_SIZE; | |
3535 | ||
23ba15b7 ILT |
3536 | #ifdef CHECK_ARMAP_HASH |
3537 | { | |
3538 | unsigned int hlog; | |
3539 | ||
3540 | /* Double check that I have the hashing algorithm right by making | |
3541 | sure that every symbol can be looked up successfully. */ | |
3542 | hlog = 0; | |
3543 | for (i = 1; i < count; i <<= 1) | |
3544 | hlog++; | |
3545 | BFD_ASSERT (i == count); | |
3546 | ||
3547 | for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) | |
3548 | { | |
3549 | unsigned int name_offset, file_offset; | |
3550 | unsigned int hash, rehash, srch; | |
3551 | ||
3552 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3553 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); | |
3554 | if (file_offset == 0) | |
3555 | continue; | |
3556 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3557 | hlog); | |
3558 | if (hash == i) | |
3559 | continue; | |
3560 | ||
3561 | /* See if we can rehash to this location. */ | |
3562 | for (srch = (hash + rehash) & (count - 1); | |
3563 | srch != hash && srch != i; | |
3564 | srch = (srch + rehash) & (count - 1)) | |
3565 | BFD_ASSERT (bfd_h_get_32 (abfd, | |
3566 | (PTR) (raw_armap | |
3567 | + LONG_SIZE | |
3568 | + (srch * 2 * LONG_SIZE) | |
3569 | + LONG_SIZE)) | |
3570 | != 0); | |
3571 | BFD_ASSERT (srch == i); | |
3572 | } | |
3573 | } | |
3574 | ||
3575 | raw_ptr = raw_armap + LONG_SIZE; | |
3576 | #endif /* CHECK_ARMAP_HASH */ | |
3577 | ||
c3fe0c41 ILT |
3578 | for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) |
3579 | { | |
23ba15b7 | 3580 | unsigned int name_offset, file_offset; |
c3fe0c41 ILT |
3581 | |
3582 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3583 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); | |
3584 | if (file_offset == 0) | |
3585 | continue; | |
3586 | symdef_ptr->s.name = stringbase + name_offset; | |
3587 | symdef_ptr->file_offset = file_offset; | |
3588 | ++symdef_ptr; | |
3589 | ++ardata->symdef_count; | |
3590 | } | |
3591 | ||
3592 | ardata->first_file_filepos = bfd_tell (abfd); | |
3593 | /* Pad to an even boundary. */ | |
3594 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3595 | ||
3596 | bfd_has_map (abfd) = true; | |
3597 | ||
3598 | return true; | |
3599 | } | |
3600 | ||
3601 | /* Write out an armap. */ | |
3602 | ||
3603 | static boolean | |
3604 | DEFUN (ecoff_write_armap, (abfd, elength, map, orl_count, stridx), | |
3605 | bfd *abfd AND | |
3606 | unsigned int elength AND | |
3607 | struct orl *map AND | |
3608 | unsigned int orl_count AND | |
3609 | int stridx) | |
3610 | { | |
23ba15b7 | 3611 | unsigned int hashsize, hashlog; |
c3fe0c41 ILT |
3612 | unsigned int symdefsize; |
3613 | int padit; | |
3614 | unsigned int stringsize; | |
3615 | unsigned int mapsize; | |
3616 | file_ptr firstreal; | |
3617 | struct ar_hdr hdr; | |
3618 | struct stat statbuf; | |
3619 | unsigned int i; | |
23ba15b7 ILT |
3620 | bfd_byte temp[LONG_SIZE]; |
3621 | bfd_byte *hashtable; | |
c3fe0c41 ILT |
3622 | bfd *current; |
3623 | bfd *last_elt; | |
3624 | ||
23ba15b7 ILT |
3625 | /* Ultrix appears to use as a hash table size the least power of two |
3626 | greater than twice the number of entries. */ | |
3627 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3628 | ; | |
3629 | hashsize = 1 << hashlog; | |
3630 | ||
3631 | symdefsize = hashsize * 2 * LONG_SIZE; | |
c3fe0c41 ILT |
3632 | padit = stridx % 2; |
3633 | stringsize = stridx + padit; | |
3634 | ||
3635 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
23ba15b7 | 3636 | mapsize = LONG_SIZE + symdefsize + stringsize + LONG_SIZE; |
c3fe0c41 ILT |
3637 | |
3638 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3639 | ||
3640 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3641 | ||
3642 | /* Work out the ECOFF armap name. */ | |
3643 | strcpy (hdr.ar_name, ARMAP_START); | |
3644 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; | |
3645 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3646 | (abfd->xvec->header_byteorder_big_p | |
3647 | ? ARMAP_BIG_ENDIAN | |
3648 | : ARMAP_LITTLE_ENDIAN); | |
3649 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3650 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3651 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3652 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3653 | ||
3654 | /* Write the timestamp of the archive header to be just a little bit | |
3655 | later than the timestamp of the file, otherwise the linker will | |
23ba15b7 ILT |
3656 | complain that the index is out of date. Actually, the Ultrix |
3657 | linker just checks the archive name; the GNU linker may check the | |
3658 | date. */ | |
c3fe0c41 ILT |
3659 | if (stat (abfd->filename, &statbuf) < 0) |
3660 | statbuf.st_mtime = time ((PTR) NULL); | |
3661 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3662 | ||
3663 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3664 | armap. */ | |
3665 | hdr.ar_uid[0] = '0'; | |
3666 | hdr.ar_gid[0] = '0'; | |
3667 | hdr.ar_mode[0] = '0'; | |
3668 | ||
3669 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3670 | ||
3671 | hdr.ar_fmag[0] = '`'; | |
3672 | hdr.ar_fmag[1] = '\n'; | |
3673 | ||
3674 | /* Turn all null bytes in the header into spaces. */ | |
3675 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3676 | if (((char *)(&hdr))[i] == '\0') | |
3677 | (((char *)(&hdr))[i]) = ' '; | |
3678 | ||
23ba15b7 ILT |
3679 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) |
3680 | != sizeof (struct ar_hdr)) | |
3681 | return false; | |
c3fe0c41 | 3682 | |
23ba15b7 ILT |
3683 | bfd_h_put_32 (abfd, hashsize, temp); |
3684 | if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) | |
3685 | return false; | |
c3fe0c41 | 3686 | |
23ba15b7 ILT |
3687 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); |
3688 | ||
c3fe0c41 ILT |
3689 | current = abfd->archive_head; |
3690 | last_elt = current; | |
3691 | for (i = 0; i < orl_count; i++) | |
3692 | { | |
23ba15b7 | 3693 | unsigned int hash, rehash; |
c3fe0c41 ILT |
3694 | |
3695 | /* Advance firstreal to the file position of this archive | |
3696 | element. */ | |
3697 | if (((bfd *) map[i].pos) != last_elt) | |
3698 | { | |
3699 | do | |
3700 | { | |
3701 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3702 | firstreal += firstreal % 2; | |
3703 | current = current->next; | |
3704 | } | |
3705 | while (current != (bfd *) map[i].pos); | |
3706 | } | |
3707 | ||
3708 | last_elt = current; | |
3709 | ||
23ba15b7 ILT |
3710 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); |
3711 | if (bfd_h_get_32 (abfd, (PTR) (hashtable | |
3712 | + (hash * 2 * LONG_SIZE) | |
3713 | + LONG_SIZE)) | |
3714 | != 0) | |
3715 | { | |
3716 | unsigned int srch; | |
3717 | ||
3718 | /* The desired slot is already taken. */ | |
3719 | for (srch = (hash + rehash) & (hashsize - 1); | |
3720 | srch != hash; | |
3721 | srch = (srch + rehash) & (hashsize - 1)) | |
3722 | if (bfd_h_get_32 (abfd, (PTR) (hashtable | |
3723 | + (srch * 2 * LONG_SIZE) | |
3724 | + LONG_SIZE)) | |
3725 | == 0) | |
3726 | break; | |
3727 | ||
3728 | BFD_ASSERT (srch != hash); | |
3729 | ||
3730 | hash = srch; | |
3731 | } | |
3732 | ||
3733 | bfd_h_put_32 (abfd, map[i].namidx, | |
3734 | (PTR) (hashtable + hash * 2 * LONG_SIZE)); | |
3735 | bfd_h_put_32 (abfd, firstreal, | |
3736 | (PTR) (hashtable + hash * 2 * LONG_SIZE + LONG_SIZE)); | |
c3fe0c41 ILT |
3737 | } |
3738 | ||
23ba15b7 ILT |
3739 | if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize) |
3740 | return false; | |
3741 | ||
3742 | bfd_release (abfd, hashtable); | |
3743 | ||
c3fe0c41 ILT |
3744 | /* Now write the strings. */ |
3745 | bfd_h_put_32 (abfd, stringsize, temp); | |
23ba15b7 ILT |
3746 | if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) |
3747 | return false; | |
c3fe0c41 | 3748 | for (i = 0; i < orl_count; i++) |
23ba15b7 ILT |
3749 | { |
3750 | bfd_size_type len; | |
3751 | ||
3752 | len = strlen (*map[i].name) + 1; | |
3753 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3754 | return false; | |
3755 | } | |
c3fe0c41 ILT |
3756 | |
3757 | /* The spec sez this should be a newline. But in order to be | |
3758 | bug-compatible for DECstation ar we use a null. */ | |
3759 | if (padit) | |
23ba15b7 ILT |
3760 | { |
3761 | if (bfd_write ("\0", 1, 1, abfd) != 1) | |
3762 | return false; | |
3763 | } | |
c3fe0c41 ILT |
3764 | |
3765 | return true; | |
3766 | } | |
3767 | ||
3768 | /* We just use the generic extended name support. This is a GNU | |
3769 | extension. */ | |
3770 | #define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table | |
3771 | ||
3772 | /* See whether this BFD is an archive. If it is, read in the armap | |
3773 | and the extended name table. */ | |
3774 | ||
3775 | static bfd_target * | |
3776 | DEFUN (ecoff_archive_p, (abfd), | |
3777 | bfd *abfd) | |
3778 | { | |
3779 | char armag[SARMAG + 1]; | |
3780 | ||
3781 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3782 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3783 | { | |
3784 | bfd_error = wrong_format; | |
3785 | return (bfd_target *) NULL; | |
3786 | } | |
3787 | ||
3788 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3789 | involves a cast, we can't do it as the left operand of | |
3790 | assignment. */ | |
3791 | abfd->tdata.aout_ar_data = | |
3792 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3793 | ||
3794 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3795 | { | |
3796 | bfd_error = no_memory; | |
3797 | return (bfd_target *) NULL; | |
3798 | } | |
3799 | ||
3800 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3801 | ||
3802 | if (ecoff_slurp_armap (abfd) == false | |
3803 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3804 | { | |
3805 | bfd_release (abfd, bfd_ardata (abfd)); | |
3806 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3807 | return (bfd_target *) NULL; | |
3808 | } | |
3809 | ||
3810 | return abfd->xvec; | |
3811 | } | |
3812 | \f | |
515c4292 ILT |
3813 | static CONST bfd_coff_backend_data bfd_ecoff_std_swap_table = { |
3814 | (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */ | |
3815 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */ | |
3816 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */ | |
3817 | (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */ | |
3818 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */ | |
3819 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */ | |
3820 | ecoff_swap_reloc_out, ecoff_swap_filehdr_out, ecoff_swap_aouthdr_out, | |
3821 | ecoff_swap_scnhdr_out, | |
3822 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true, | |
3823 | ecoff_swap_filehdr_in, ecoff_swap_aouthdr_in, ecoff_swap_scnhdr_in, | |
3824 | ecoff_bad_format_hook, ecoff_set_arch_mach_hook, ecoff_mkobject_hook, | |
3825 | styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook, | |
3826 | ecoff_slurp_symbol_table | |
3827 | }; | |
3828 | ||
515c4292 ILT |
3829 | /* get_lineno could be written for ECOFF, but it would currently only |
3830 | be useful for linking ECOFF and COFF files together, which doesn't | |
3831 | seem too likely. */ | |
8fa0d3a0 ILT |
3832 | #define ecoff_get_lineno \ |
3833 | ((alent *(*) PARAMS ((bfd *, asymbol *))) bfd_nullvoidptr) | |
515c4292 ILT |
3834 | |
3835 | #define ecoff_core_file_failing_command _bfd_dummy_core_file_failing_command | |
3836 | #define ecoff_core_file_failing_signal _bfd_dummy_core_file_failing_signal | |
3837 | #define ecoff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p | |
515c4292 ILT |
3838 | #define ecoff_truncate_arname bfd_dont_truncate_arname |
3839 | #define ecoff_openr_next_archived_file bfd_generic_openr_next_archived_file | |
3840 | #define ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
3841 | #define ecoff_get_section_contents bfd_generic_get_section_contents | |
8fa0d3a0 | 3842 | #define ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound |
515c4292 | 3843 | #define ecoff_close_and_cleanup bfd_generic_close_and_cleanup |
8fa0d3a0 | 3844 | #define ecoff_sizeof_headers coff_sizeof_headers |
515c4292 | 3845 | #define ecoff_bfd_debug_info_start bfd_void |
8fa0d3a0 | 3846 | #define ecoff_bfd_debug_info_end bfd_void |
515c4292 | 3847 | #define ecoff_bfd_debug_info_accumulate \ |
8fa0d3a0 | 3848 | ((void (*) PARAMS ((bfd *, struct sec *))) bfd_void) |
515c4292 ILT |
3849 | #define ecoff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
3850 | #define ecoff_bfd_relax_section bfd_generic_relax_section | |
c9301d7b | 3851 | |
1327fb29 | 3852 | bfd_target ecoff_little_vec = |
294eaca4 SC |
3853 | { |
3854 | "ecoff-littlemips", /* name */ | |
515c4292 | 3855 | bfd_target_ecoff_flavour, |
294eaca4 SC |
3856 | false, /* data byte order is little */ |
3857 | false, /* header byte order is little */ | |
3858 | ||
3859 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3860 | HAS_LINENO | HAS_DEBUG | | |
3861 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
3862 | ||
3863 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect | |
3864 | flags */ | |
3865 | 0, /* leading underscore */ | |
3866 | '/', /* ar_pad_char */ | |
3867 | 15, /* ar_max_namelen */ | |
3868 | 3, /* minimum alignment power */ | |
3869 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */ | |
3870 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */ | |
3871 | ||
515c4292 | 3872 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
c3fe0c41 ILT |
3873 | ecoff_archive_p, _bfd_dummy_target}, |
3874 | {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
3875 | bfd_false}, | |
3876 | {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */ | |
3877 | _bfd_write_archive_contents, bfd_false}, | |
515c4292 ILT |
3878 | JUMP_TABLE (ecoff), |
3879 | 0, 0, | |
3880 | (PTR) &bfd_ecoff_std_swap_table | |
3881 | }; | |
1327fb29 SC |
3882 | |
3883 | bfd_target ecoff_big_vec = | |
294eaca4 SC |
3884 | { |
3885 | "ecoff-bigmips", /* name */ | |
515c4292 | 3886 | bfd_target_ecoff_flavour, |
294eaca4 SC |
3887 | true, /* data byte order is big */ |
3888 | true, /* header byte order is big */ | |
3889 | ||
3890 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3891 | HAS_LINENO | HAS_DEBUG | | |
3892 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
3893 | ||
3894 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */ | |
3895 | 0, /* leading underscore */ | |
3896 | ' ', /* ar_pad_char */ | |
3897 | 16, /* ar_max_namelen */ | |
3898 | 3, /* minimum alignment power */ | |
3899 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3900 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3901 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
c3fe0c41 ILT |
3902 | ecoff_archive_p, _bfd_dummy_target}, |
3903 | {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
3904 | bfd_false}, | |
515c4292 | 3905 | {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */ |
c3fe0c41 | 3906 | _bfd_write_archive_contents, bfd_false}, |
515c4292 ILT |
3907 | JUMP_TABLE(ecoff), |
3908 | 0, 0, | |
3909 | (PTR) &bfd_ecoff_std_swap_table | |
3910 | /* Note that there is another bfd_target just above this one. If | |
3911 | you are adding initializers here, you should be adding them there | |
3912 | as well. */ | |
3913 | }; |