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 | ||
5e462ed9 ILT |
125 | /* The linker needs a section to hold small common variables while |
126 | linking. There is no convenient way to create it when the linker | |
127 | needs it, so we always create one for each BFD. We then avoid | |
128 | writing it out. */ | |
129 | #define SCOMMON ".scommon" | |
130 | ||
515c4292 ILT |
131 | /* MIPS ECOFF has COFF sections, but the debugging information is |
132 | stored in a completely different format. This files uses the some | |
133 | of the swapping routines from coffswap.h, and some of the generic | |
134 | COFF routines in coffgen.c, but, unlike the real COFF targets, does | |
135 | not use coffcode.h itself. */ | |
136 | ||
8fa0d3a0 ILT |
137 | /* Get the generic COFF swapping routines, except for the reloc, |
138 | symbol, and lineno ones. Give them ecoff names. */ | |
c3fe0c41 | 139 | #define MIPSECOFF |
8fa0d3a0 | 140 | #define NO_COFF_RELOCS |
515c4292 ILT |
141 | #define NO_COFF_SYMBOLS |
142 | #define NO_COFF_LINENOS | |
515c4292 ILT |
143 | #define coff_swap_filehdr_in ecoff_swap_filehdr_in |
144 | #define coff_swap_filehdr_out ecoff_swap_filehdr_out | |
145 | #define coff_swap_aouthdr_in ecoff_swap_aouthdr_in | |
146 | #define coff_swap_aouthdr_out ecoff_swap_aouthdr_out | |
147 | #define coff_swap_scnhdr_in ecoff_swap_scnhdr_in | |
148 | #define coff_swap_scnhdr_out ecoff_swap_scnhdr_out | |
149 | #include "coffswap.h" | |
150 | \f | |
151 | /* This stuff is somewhat copied from coffcode.h. */ | |
152 | ||
153 | static asection bfd_debug_section = { "*DEBUG*" }; | |
154 | ||
155 | /* See whether the magic number matches. */ | |
156 | ||
157 | static boolean | |
158 | DEFUN(ecoff_bad_format_hook, (abfd, filehdr), | |
159 | bfd *abfd AND | |
160 | PTR filehdr) | |
161 | { | |
162 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
163 | ||
164 | if (ECOFFBADMAG (*internal_f)) | |
165 | return false; | |
166 | ||
167 | return true; | |
168 | } | |
169 | ||
170 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ | |
171 | ||
172 | static asection * | |
173 | DEFUN (ecoff_make_section_hook, (abfd, name), | |
174 | bfd *abfd AND | |
175 | char *name) | |
176 | { | |
177 | return (asection *) NULL; | |
178 | } | |
179 | ||
180 | /* Initialize a new section. */ | |
181 | ||
182 | static boolean | |
183 | DEFUN (ecoff_new_section_hook, (abfd, section), | |
184 | bfd *abfd AND | |
185 | asection *section) | |
186 | { | |
187 | section->alignment_power = abfd->xvec->align_power_min; | |
8fa0d3a0 ILT |
188 | |
189 | if (strcmp (section->name, _TEXT) == 0) | |
190 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
191 | else if (strcmp (section->name, _DATA) == 0 | |
192 | || strcmp (section->name, _SDATA) == 0) | |
193 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
194 | else if (strcmp (section->name, _RDATA) == 0 | |
195 | || strcmp (section->name, _LIT8) == 0 | |
196 | || strcmp (section->name, _LIT4) == 0) | |
197 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
198 | else if (strcmp (section->name, _BSS) == 0 | |
199 | || strcmp (section->name, _SBSS) == 0) | |
bf4b84bc | 200 | section->flags |= SEC_ALLOC; |
8fa0d3a0 ILT |
201 | |
202 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
203 | uncertain about .init on some systems and I don't know how shared | |
204 | libraries work. */ | |
205 | ||
515c4292 ILT |
206 | return true; |
207 | } | |
208 | ||
209 | #define ecoff_set_alignment_hook \ | |
210 | ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) | |
211 | ||
212 | static boolean | |
213 | DEFUN (ecoff_mkobject, (abfd), | |
214 | bfd *abfd) | |
215 | { | |
216 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
217 | bfd_zalloc (abfd, sizeof(ecoff_data_type))); | |
218 | if (abfd->tdata.ecoff_obj_data == NULL) | |
219 | { | |
220 | bfd_error = no_memory; | |
221 | return false; | |
222 | } | |
223 | ||
5e462ed9 ILT |
224 | /* Always create a .scommon section for every BFD. This is a hack so |
225 | that the linker has something to attach scSCommon symbols to. */ | |
226 | bfd_make_section (abfd, SCOMMON); | |
227 | ||
515c4292 ILT |
228 | return true; |
229 | } | |
230 | ||
231 | /* Create the COFF backend specific information. */ | |
232 | ||
c3fe0c41 ILT |
233 | static PTR |
234 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
235 | bfd *abfd; | |
236 | PTR filehdr; | |
237 | PTR aouthdr; | |
515c4292 ILT |
238 | { |
239 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
c3fe0c41 | 240 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; |
515c4292 ILT |
241 | ecoff_data_type *ecoff; |
242 | ||
243 | if (ecoff_mkobject (abfd) == false) | |
244 | return NULL; | |
245 | ||
246 | ecoff = ecoff_data (abfd); | |
247 | ecoff->sym_filepos = internal_f->f_symptr; | |
c3fe0c41 ILT |
248 | |
249 | if (internal_a != (struct internal_aouthdr *) NULL) | |
250 | { | |
251 | int i; | |
252 | ||
253 | ecoff->gp = internal_a->gp_value; | |
254 | ecoff->gprmask = internal_a->gprmask; | |
5e462ed9 | 255 | for (i = 0; i < 4; i++) |
c3fe0c41 ILT |
256 | ecoff->cprmask[i] = internal_a->cprmask[i]; |
257 | } | |
258 | ||
515c4292 ILT |
259 | return (PTR) ecoff; |
260 | } | |
261 | ||
262 | /* Determine the machine architecture and type. */ | |
263 | static boolean | |
264 | DEFUN (ecoff_set_arch_mach_hook, (abfd, filehdr), | |
265 | bfd *abfd AND | |
266 | PTR filehdr) | |
267 | { | |
268 | long machine; | |
269 | enum bfd_architecture arch; | |
270 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
271 | ||
272 | machine = 0; | |
273 | switch (internal_f->f_magic) { | |
274 | case MIPS_MAGIC_1: | |
275 | case MIPS_MAGIC_2: | |
276 | case MIPS_MAGIC_3: | |
277 | arch = bfd_arch_mips; | |
278 | machine = 0; | |
279 | break; | |
280 | ||
281 | default: /* Unreadable input file type */ | |
282 | arch = bfd_arch_obscure; | |
283 | break; | |
284 | } | |
285 | ||
286 | bfd_default_set_arch_mach(abfd, arch, machine); | |
287 | return true; | |
288 | } | |
289 | ||
8fa0d3a0 ILT |
290 | /* Get the section s_flags to use for a section. */ |
291 | ||
292 | static long | |
293 | DEFUN (sec_to_styp_flags, (name, flags), | |
294 | CONST char *name AND | |
295 | flagword flags) | |
296 | { | |
297 | long styp; | |
298 | ||
299 | styp = 0; | |
300 | ||
301 | if (strcmp (name, _TEXT) == 0) | |
302 | styp = STYP_TEXT; | |
303 | else if (strcmp (name, _DATA) == 0) | |
c3fe0c41 | 304 | styp = STYP_DATA; |
8fa0d3a0 | 305 | else if (strcmp (name, _SDATA) == 0) |
c3fe0c41 | 306 | styp = STYP_SDATA; |
8fa0d3a0 ILT |
307 | else if (strcmp (name, _RDATA) == 0) |
308 | styp = STYP_RDATA; | |
309 | else if (strcmp (name, _LIT8) == 0) | |
310 | styp = STYP_LIT8; | |
311 | else if (strcmp (name, _LIT4) == 0) | |
312 | styp = STYP_LIT4; | |
313 | else if (strcmp (name, _BSS) == 0) | |
314 | styp = STYP_BSS; | |
315 | else if (strcmp (name, _SBSS) == 0) | |
316 | styp = STYP_SBSS; | |
317 | else if (flags & SEC_CODE) | |
318 | styp = STYP_TEXT; | |
319 | else if (flags & SEC_DATA) | |
320 | styp = STYP_DATA; | |
321 | else if (flags & SEC_READONLY) | |
322 | styp = STYP_RDATA; | |
323 | else if (flags & SEC_LOAD) | |
324 | styp = STYP_TEXT; | |
325 | else | |
326 | styp = STYP_BSS; | |
327 | ||
328 | if (flags & SEC_NEVER_LOAD) | |
329 | styp |= STYP_NOLOAD; | |
330 | ||
331 | return styp; | |
332 | } | |
333 | ||
515c4292 ILT |
334 | /* Get the BFD flags to use for a section. */ |
335 | ||
336 | static flagword | |
8fa0d3a0 ILT |
337 | DEFUN (styp_to_sec_flags, (abfd, hdr), |
338 | bfd *abfd AND | |
339 | PTR hdr) | |
515c4292 ILT |
340 | { |
341 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
342 | long styp_flags = internal_s->s_flags; | |
343 | flagword sec_flags=0; | |
344 | ||
345 | if (styp_flags & STYP_NOLOAD) | |
346 | sec_flags |= SEC_NEVER_LOAD; | |
347 | ||
348 | /* For 386 COFF, at least, an unloadable text or data section is | |
349 | actually a shared library section. */ | |
350 | if (styp_flags & STYP_TEXT) | |
351 | { | |
352 | if (sec_flags & SEC_NEVER_LOAD) | |
353 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
354 | else | |
355 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
356 | } | |
357 | else if ((styp_flags & STYP_DATA) | |
358 | || (styp_flags & STYP_RDATA) | |
359 | || (styp_flags & STYP_SDATA)) | |
360 | { | |
361 | if (sec_flags & SEC_NEVER_LOAD) | |
362 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
363 | else | |
364 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
365 | if (styp_flags & STYP_RDATA) | |
366 | sec_flags |= SEC_READONLY; | |
367 | } | |
368 | else if ((styp_flags & STYP_BSS) | |
369 | || (styp_flags & STYP_SBSS)) | |
370 | { | |
371 | sec_flags |= SEC_ALLOC; | |
372 | } | |
373 | else if (styp_flags & STYP_INFO) | |
374 | { | |
375 | sec_flags |= SEC_NEVER_LOAD; | |
376 | } | |
377 | else if ((styp_flags & STYP_LIT8) | |
378 | || (styp_flags & STYP_LIT4)) | |
379 | { | |
380 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
381 | } | |
382 | else | |
383 | { | |
384 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
385 | } | |
386 | ||
387 | return sec_flags; | |
388 | } | |
389 | \f | |
8fa0d3a0 ILT |
390 | /* Read in and swap the important symbolic information for an ECOFF |
391 | object file. */ | |
392 | ||
393 | static boolean | |
394 | DEFUN (ecoff_slurp_symbolic_info, (abfd), | |
395 | bfd *abfd) | |
396 | { | |
397 | struct hdr_ext external_symhdr; | |
398 | HDRR *internal_symhdr; | |
399 | bfd_size_type raw_base; | |
400 | bfd_size_type raw_size; | |
401 | PTR raw; | |
402 | struct fdr_ext *fraw_src; | |
403 | struct fdr_ext *fraw_end; | |
404 | struct fdr *fdr_ptr; | |
405 | ||
406 | /* Check whether we've already gotten it, and whether there's any to | |
407 | get. */ | |
408 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
409 | return true; | |
410 | if (ecoff_data (abfd)->sym_filepos == 0) | |
411 | { | |
412 | bfd_get_symcount (abfd) = 0; | |
413 | return true; | |
414 | } | |
415 | ||
416 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
417 | as read from the file header, but on ECOFF this is always the | |
418 | size of the symbolic information header. It would be cleaner to | |
419 | handle this when we first read the file in coffgen.c. */ | |
420 | if (bfd_get_symcount (abfd) != sizeof (external_symhdr)) | |
421 | { | |
422 | bfd_error = bad_value; | |
423 | return false; | |
424 | } | |
425 | ||
426 | /* Read the symbolic information header. */ | |
427 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
428 | || (bfd_read ((PTR) &external_symhdr, sizeof (external_symhdr), 1, abfd) | |
429 | != sizeof (external_symhdr))) | |
430 | { | |
431 | bfd_error = system_call_error; | |
432 | return false; | |
433 | } | |
434 | internal_symhdr = &ecoff_data (abfd)->symbolic_header; | |
435 | ecoff_swap_hdr_in (abfd, &external_symhdr, internal_symhdr); | |
436 | ||
437 | if (internal_symhdr->magic != magicSym) | |
438 | { | |
439 | bfd_error = bad_value; | |
440 | return false; | |
441 | } | |
442 | ||
443 | /* Now we can get the correct number of symbols. */ | |
444 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
445 | + internal_symhdr->iextMax); | |
446 | ||
c3fe0c41 | 447 | /* Read all the symbolic information at once. */ |
23ba15b7 ILT |
448 | raw_base = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); |
449 | ||
450 | if (internal_symhdr->cbExtOffset != 0) | |
451 | raw_size = (internal_symhdr->cbExtOffset | |
452 | - raw_base | |
453 | + internal_symhdr->iextMax * sizeof (struct ext_ext)); | |
454 | else | |
455 | { | |
456 | long cbline, issmax, issextmax; | |
457 | ||
458 | cbline = (internal_symhdr->cbLine + 3) &~ 4; | |
459 | issmax = (internal_symhdr->issMax + 3) &~ 4; | |
460 | issextmax = (internal_symhdr->issExtMax + 3) &~ 4; | |
461 | raw_size = (cbline * sizeof (unsigned char) | |
462 | + internal_symhdr->idnMax * sizeof (struct dnr_ext) | |
463 | + internal_symhdr->ipdMax * sizeof (struct pdr_ext) | |
464 | + internal_symhdr->isymMax * sizeof (struct sym_ext) | |
465 | + internal_symhdr->ioptMax * sizeof (struct opt_ext) | |
466 | + internal_symhdr->iauxMax * sizeof (union aux_ext) | |
467 | + issmax * sizeof (char) | |
468 | + issextmax * sizeof (char) | |
469 | + internal_symhdr->ifdMax * sizeof (struct fdr_ext) | |
470 | + internal_symhdr->crfd * sizeof (struct rfd_ext) | |
471 | + internal_symhdr->iextMax * sizeof (struct ext_ext)); | |
472 | } | |
473 | ||
c3fe0c41 ILT |
474 | if (raw_size == 0) |
475 | { | |
476 | ecoff_data (abfd)->sym_filepos = 0; | |
477 | return true; | |
478 | } | |
8fa0d3a0 ILT |
479 | raw = (PTR) bfd_alloc (abfd, raw_size); |
480 | if (raw == NULL) | |
481 | { | |
482 | bfd_error = no_memory; | |
483 | return false; | |
484 | } | |
485 | if (bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
486 | { | |
487 | bfd_error = system_call_error; | |
488 | bfd_release (abfd, raw); | |
489 | return false; | |
490 | } | |
491 | ||
492 | ecoff_data (abfd)->raw_size = raw_size; | |
493 | ecoff_data (abfd)->raw_syments = raw; | |
494 | ||
495 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
496 | #define FIX(off1, off2, type) \ | |
497 | if (internal_symhdr->off1 == 0) \ | |
498 | ecoff_data (abfd)->off2 = (type *) NULL; \ | |
499 | else \ | |
500 | ecoff_data (abfd)->off2 = (type *) ((char *) raw \ | |
501 | + internal_symhdr->off1 \ | |
502 | - raw_base) | |
503 | FIX (cbLineOffset, line, unsigned char); | |
504 | FIX (cbDnOffset, external_dnr, struct dnr_ext); | |
505 | FIX (cbPdOffset, external_pdr, struct pdr_ext); | |
506 | FIX (cbSymOffset, external_sym, struct sym_ext); | |
507 | FIX (cbOptOffset, external_opt, struct opt_ext); | |
508 | FIX (cbAuxOffset, external_aux, union aux_ext); | |
509 | FIX (cbSsOffset, ss, char); | |
510 | FIX (cbSsExtOffset, ssext, char); | |
511 | FIX (cbFdOffset, external_fdr, struct fdr_ext); | |
512 | FIX (cbRfdOffset, external_rfd, struct rfd_ext); | |
513 | FIX (cbExtOffset, external_ext, struct ext_ext); | |
514 | #undef FIX | |
515 | ||
516 | /* I don't want to always swap all the data, because it will just | |
517 | waste time and most programs will never look at it. The only | |
518 | time the linker needs most of the debugging information swapped | |
519 | is when linking big-endian and little-endian MIPS object files | |
520 | together, which is not a common occurrence. | |
521 | ||
522 | We need to look at the fdr to deal with a lot of information in | |
523 | the symbols, so we swap them here. */ | |
524 | ecoff_data (abfd)->fdr = (struct fdr *) bfd_alloc (abfd, | |
525 | (internal_symhdr->ifdMax * | |
526 | sizeof (struct fdr))); | |
527 | if (ecoff_data (abfd)->fdr == NULL) | |
528 | { | |
529 | bfd_error = no_memory; | |
530 | return false; | |
531 | } | |
532 | fdr_ptr = ecoff_data (abfd)->fdr; | |
533 | fraw_src = ecoff_data (abfd)->external_fdr; | |
534 | fraw_end = fraw_src + internal_symhdr->ifdMax; | |
535 | for (; fraw_src < fraw_end; fraw_src++, fdr_ptr++) | |
536 | ecoff_swap_fdr_in (abfd, fraw_src, fdr_ptr); | |
537 | ||
538 | return true; | |
539 | } | |
540 | \f | |
515c4292 ILT |
541 | /* ECOFF symbol table routines. The ECOFF symbol table is described |
542 | in gcc/mips-tfile.c. */ | |
543 | ||
bf4b84bc ILT |
544 | /* ECOFF uses two common sections. One is the usual one, and the |
545 | other is for small objects. All the small objects are kept | |
546 | together, and then referenced via the gp pointer, which yields | |
547 | faster assembler code. This is what we use for the small common | |
548 | section. */ | |
549 | static asection ecoff_scom_section; | |
550 | static asymbol ecoff_scom_symbol; | |
551 | static asymbol *ecoff_scom_symbol_ptr; | |
552 | ||
515c4292 ILT |
553 | /* Create an empty symbol. */ |
554 | ||
555 | static asymbol * | |
556 | DEFUN (ecoff_make_empty_symbol, (abfd), | |
557 | bfd *abfd) | |
558 | { | |
559 | ecoff_symbol_type *new; | |
560 | ||
561 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
562 | if (new == (ecoff_symbol_type *) NULL) | |
563 | { | |
564 | bfd_error = no_memory; | |
565 | return (asymbol *) NULL; | |
566 | } | |
567 | new->symbol.section = (asection *) NULL; | |
568 | new->fdr = (FDR *) NULL; | |
569 | new->local = false; | |
570 | new->native.lnative = (struct sym_ext *) NULL; | |
571 | new->symbol.the_bfd = abfd; | |
572 | return &new->symbol; | |
573 | } | |
574 | ||
575 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
576 | ||
577 | static void | |
578 | DEFUN (ecoff_set_symbol_info, (abfd, ecoff_sym, asym, ext), | |
579 | bfd *abfd AND | |
580 | SYMR *ecoff_sym AND | |
581 | asymbol *asym AND | |
582 | int ext) | |
583 | { | |
584 | asym->the_bfd = abfd; | |
585 | asym->value = ecoff_sym->value; | |
586 | asym->section = &bfd_debug_section; | |
587 | asym->udata = NULL; | |
c3fe0c41 ILT |
588 | |
589 | /* Most symbol types are just for debugging. */ | |
590 | switch (ecoff_sym->st) | |
591 | { | |
592 | case stGlobal: | |
593 | case stStatic: | |
594 | case stLabel: | |
595 | case stProc: | |
596 | case stStaticProc: | |
597 | case stBlock: | |
23ba15b7 | 598 | case stNil: |
c3fe0c41 ILT |
599 | break; |
600 | default: | |
601 | asym->flags = BSF_DEBUGGING; | |
602 | return; | |
603 | } | |
604 | ||
515c4292 ILT |
605 | if (ext) |
606 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
607 | else | |
608 | asym->flags = BSF_LOCAL; | |
609 | switch (ecoff_sym->sc) | |
610 | { | |
611 | case scNil: | |
23ba15b7 ILT |
612 | /* Used for compiler generated labels. Leave them in the |
613 | debugging section, and mark them as local. If BSF_DEBUGGING | |
614 | is set, then nm does not display them for some reason. If no | |
615 | flags are set then the linker whines about them. */ | |
616 | asym->flags = BSF_LOCAL; | |
515c4292 ILT |
617 | break; |
618 | case scText: | |
619 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
620 | asym->value -= asym->section->vma; | |
621 | break; | |
622 | case scData: | |
623 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
624 | asym->value -= asym->section->vma; | |
625 | break; | |
626 | case scBss: | |
c3fe0c41 | 627 | if (ext) |
23ba15b7 ILT |
628 | { |
629 | asym->section = &bfd_com_section; | |
630 | asym->flags = 0; | |
631 | } | |
c3fe0c41 ILT |
632 | else |
633 | { | |
634 | asym->section = bfd_make_section_old_way (abfd, ".bss"); | |
635 | asym->value -= asym->section->vma; | |
636 | } | |
515c4292 ILT |
637 | break; |
638 | case scRegister: | |
639 | asym->flags = BSF_DEBUGGING; | |
640 | break; | |
641 | case scAbs: | |
642 | asym->section = &bfd_abs_section; | |
515c4292 ILT |
643 | break; |
644 | case scUndefined: | |
645 | asym->section = &bfd_und_section; | |
23ba15b7 ILT |
646 | asym->flags = 0; |
647 | asym->value = 0; | |
515c4292 ILT |
648 | break; |
649 | case scCdbLocal: | |
650 | case scBits: | |
651 | case scCdbSystem: | |
652 | case scRegImage: | |
653 | case scInfo: | |
654 | case scUserStruct: | |
655 | asym->flags = BSF_DEBUGGING; | |
656 | break; | |
657 | case scSData: | |
658 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
659 | asym->value -= asym->section->vma; | |
660 | break; | |
661 | case scSBss: | |
382f2a3d | 662 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); |
bf4b84bc ILT |
663 | if (! ext) |
664 | asym->value -= asym->section->vma; | |
515c4292 ILT |
665 | break; |
666 | case scRData: | |
667 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
668 | asym->value -= asym->section->vma; | |
669 | break; | |
670 | case scVar: | |
671 | asym->flags = BSF_DEBUGGING; | |
672 | break; | |
673 | case scCommon: | |
5e462ed9 ILT |
674 | /* FIXME: We should take a -G argument, which gives the maximum |
675 | size of objects to be put in the small common section. Until | |
676 | we do, we put objects of sizes up to 8 in the small common | |
677 | section. The assembler should do this for us, but the native | |
678 | assembler seems to get confused. */ | |
679 | if (asym->value > 8) | |
680 | { | |
681 | asym->section = &bfd_com_section; | |
682 | break; | |
683 | } | |
684 | /* Fall through. */ | |
382f2a3d | 685 | case scSCommon: |
bf4b84bc ILT |
686 | if (ecoff_scom_section.name == NULL) |
687 | { | |
688 | /* Initialize the small common section. */ | |
5e462ed9 | 689 | ecoff_scom_section.name = SCOMMON; |
bf4b84bc ILT |
690 | ecoff_scom_section.flags = SEC_IS_COMMON; |
691 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
692 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
693 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
5e462ed9 | 694 | ecoff_scom_symbol.name = SCOMMON; |
bf4b84bc ILT |
695 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; |
696 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
697 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
698 | } | |
699 | asym->section = &ecoff_scom_section; | |
23ba15b7 | 700 | asym->flags = 0; |
382f2a3d | 701 | break; |
515c4292 ILT |
702 | case scVarRegister: |
703 | case scVariant: | |
704 | asym->flags = BSF_DEBUGGING; | |
705 | break; | |
706 | case scSUndefined: | |
707 | asym->section = &bfd_und_section; | |
23ba15b7 ILT |
708 | asym->flags = 0; |
709 | asym->value = 0; | |
515c4292 ILT |
710 | break; |
711 | case scInit: | |
712 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
713 | asym->value -= asym->section->vma; | |
714 | break; | |
715 | case scBasedVar: | |
716 | case scXData: | |
717 | case scPData: | |
718 | asym->flags = BSF_DEBUGGING; | |
719 | break; | |
720 | case scFini: | |
721 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
722 | asym->value -= asym->section->vma; | |
723 | break; | |
724 | default: | |
515c4292 ILT |
725 | break; |
726 | } | |
727 | } | |
728 | ||
729 | /* Read an ECOFF symbol table. */ | |
730 | ||
731 | static boolean | |
732 | DEFUN (ecoff_slurp_symbol_table, (abfd), | |
733 | bfd *abfd) | |
734 | { | |
515c4292 | 735 | bfd_size_type internal_size; |
515c4292 ILT |
736 | ecoff_symbol_type *internal; |
737 | ecoff_symbol_type *internal_ptr; | |
738 | struct ext_ext *eraw_src; | |
739 | struct ext_ext *eraw_end; | |
8fa0d3a0 ILT |
740 | FDR *fdr_ptr; |
741 | FDR *fdr_end; | |
515c4292 ILT |
742 | |
743 | /* If we've already read in the symbol table, do nothing. */ | |
744 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
745 | return true; | |
746 | ||
8fa0d3a0 ILT |
747 | /* Get the symbolic information. */ |
748 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
749 | return false; | |
750 | if (bfd_get_symcount (abfd) == 0) | |
751 | return true; | |
515c4292 ILT |
752 | |
753 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
754 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
755 | if (internal == NULL) | |
756 | { | |
757 | bfd_error = no_memory; | |
758 | return false; | |
759 | } | |
760 | ||
761 | internal_ptr = internal; | |
762 | eraw_src = ecoff_data (abfd)->external_ext; | |
8fa0d3a0 | 763 | eraw_end = eraw_src + ecoff_data (abfd)->symbolic_header.iextMax; |
515c4292 ILT |
764 | for (; eraw_src < eraw_end; eraw_src++, internal_ptr++) |
765 | { | |
766 | EXTR internal_esym; | |
767 | ||
768 | ecoff_swap_ext_in (abfd, eraw_src, &internal_esym); | |
769 | internal_ptr->symbol.name = (ecoff_data (abfd)->ssext | |
770 | + internal_esym.asym.iss); | |
771 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
772 | &internal_ptr->symbol, 1); | |
773 | internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; | |
774 | internal_ptr->local = false; | |
775 | internal_ptr->native.enative = eraw_src; | |
776 | } | |
777 | ||
778 | /* The local symbols must be accessed via the fdr's, because the | |
779 | string and aux indices are relative to the fdr information. */ | |
780 | fdr_ptr = ecoff_data (abfd)->fdr; | |
8fa0d3a0 | 781 | fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; |
515c4292 ILT |
782 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
783 | { | |
784 | struct sym_ext *lraw_src; | |
785 | struct sym_ext *lraw_end; | |
786 | ||
787 | lraw_src = ecoff_data (abfd)->external_sym + fdr_ptr->isymBase; | |
788 | lraw_end = lraw_src + fdr_ptr->csym; | |
789 | for (; lraw_src < lraw_end; lraw_src++, internal_ptr++) | |
790 | { | |
791 | SYMR internal_sym; | |
792 | ||
793 | ecoff_swap_sym_in (abfd, lraw_src, &internal_sym); | |
794 | internal_ptr->symbol.name = (ecoff_data (abfd)->ss | |
795 | + fdr_ptr->issBase | |
796 | + internal_sym.iss); | |
797 | ecoff_set_symbol_info (abfd, &internal_sym, | |
798 | &internal_ptr->symbol, 0); | |
799 | internal_ptr->fdr = fdr_ptr; | |
800 | internal_ptr->local = true; | |
801 | internal_ptr->native.lnative = lraw_src; | |
802 | } | |
803 | } | |
804 | ||
805 | ecoff_data (abfd)->canonical_symbols = internal; | |
806 | ||
807 | return true; | |
808 | } | |
809 | ||
810 | static unsigned int | |
811 | DEFUN (ecoff_get_symtab_upper_bound, (abfd), | |
812 | bfd *abfd) | |
813 | { | |
8fa0d3a0 ILT |
814 | if (ecoff_slurp_symbolic_info (abfd) == false |
815 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
816 | return 0; |
817 | ||
818 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
819 | } | |
820 | ||
821 | static unsigned int | |
822 | DEFUN (ecoff_get_symtab, (abfd, alocation), | |
823 | bfd *abfd AND | |
824 | asymbol **alocation) | |
825 | { | |
826 | unsigned int counter = 0; | |
827 | ecoff_symbol_type *symbase; | |
828 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
829 | ||
8fa0d3a0 ILT |
830 | if (ecoff_slurp_symbol_table (abfd) == false |
831 | || bfd_get_symcount (abfd) == 0) | |
515c4292 ILT |
832 | return 0; |
833 | ||
834 | symbase = ecoff_data (abfd)->canonical_symbols; | |
835 | while (counter < bfd_get_symcount (abfd)) | |
836 | { | |
837 | *(location++) = symbase++; | |
838 | counter++; | |
839 | } | |
840 | *location++ = (ecoff_symbol_type *) NULL; | |
841 | return bfd_get_symcount (abfd); | |
842 | } | |
843 | ||
844 | /* Turn ECOFF type information into a printable string. | |
845 | emit_aggregate and type_to_string are from gcc/mips-tdump.c, with | |
846 | swapping added and used_ptr removed. */ | |
847 | ||
848 | /* Write aggregate information to a string. */ | |
849 | ||
850 | static void | |
851 | DEFUN (emit_aggregate, (abfd, string, rndx, isym, which), | |
852 | bfd *abfd AND | |
853 | char *string AND | |
854 | RNDXR *rndx AND | |
855 | long isym AND | |
856 | CONST char *which) | |
857 | { | |
858 | int ifd = rndx->rfd; | |
859 | int indx = rndx->index; | |
860 | int sym_base, ss_base; | |
861 | CONST char *name; | |
862 | ||
863 | if (ifd == 0xfff) | |
864 | ifd = isym; | |
865 | ||
866 | sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; | |
867 | ss_base = ecoff_data (abfd)->fdr[ifd].issBase; | |
868 | ||
869 | if (indx == indexNil) | |
870 | name = "/* no name */"; | |
871 | else | |
872 | { | |
873 | SYMR sym; | |
874 | ||
875 | indx += sym_base; | |
876 | ecoff_swap_sym_in (abfd, | |
877 | ecoff_data (abfd)->external_sym + indx, | |
878 | &sym); | |
879 | name = ecoff_data (abfd)->ss + ss_base + sym.iss; | |
880 | } | |
881 | ||
882 | sprintf (string, | |
883 | "%s %s { ifd = %d, index = %d }", | |
884 | which, name, ifd, | |
885 | indx + ecoff_data (abfd)->symbolic_header.iextMax); | |
886 | } | |
887 | ||
888 | /* Convert the type information to string format. */ | |
889 | ||
890 | static char * | |
891 | DEFUN (type_to_string, (abfd, aux_ptr, indx, bigendian), | |
892 | bfd *abfd AND | |
893 | union aux_ext *aux_ptr AND | |
894 | int indx AND | |
895 | int bigendian) | |
896 | { | |
897 | AUXU u; | |
898 | struct qual { | |
899 | unsigned int type; | |
900 | int low_bound; | |
901 | int high_bound; | |
902 | int stride; | |
903 | } qualifiers[7]; | |
904 | ||
905 | unsigned int basic_type; | |
906 | int i; | |
907 | static char buffer1[1024]; | |
908 | static char buffer2[1024]; | |
909 | char *p1 = buffer1; | |
910 | char *p2 = buffer2; | |
911 | RNDXR rndx; | |
912 | ||
913 | for (i = 0; i < 7; i++) | |
914 | { | |
915 | qualifiers[i].low_bound = 0; | |
916 | qualifiers[i].high_bound = 0; | |
917 | qualifiers[i].stride = 0; | |
918 | } | |
919 | ||
920 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
921 | return "-1 (no type)"; | |
922 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
923 | ||
924 | basic_type = u.ti.bt; | |
925 | qualifiers[0].type = u.ti.tq0; | |
926 | qualifiers[1].type = u.ti.tq1; | |
927 | qualifiers[2].type = u.ti.tq2; | |
928 | qualifiers[3].type = u.ti.tq3; | |
929 | qualifiers[4].type = u.ti.tq4; | |
930 | qualifiers[5].type = u.ti.tq5; | |
931 | qualifiers[6].type = tqNil; | |
932 | ||
933 | /* | |
934 | * Go get the basic type. | |
935 | */ | |
936 | switch (basic_type) | |
937 | { | |
938 | case btNil: /* undefined */ | |
939 | strcpy (p1, "nil"); | |
940 | break; | |
941 | ||
942 | case btAdr: /* address - integer same size as pointer */ | |
943 | strcpy (p1, "address"); | |
944 | break; | |
945 | ||
946 | case btChar: /* character */ | |
947 | strcpy (p1, "char"); | |
948 | break; | |
949 | ||
950 | case btUChar: /* unsigned character */ | |
951 | strcpy (p1, "unsigned char"); | |
952 | break; | |
953 | ||
954 | case btShort: /* short */ | |
955 | strcpy (p1, "short"); | |
956 | break; | |
957 | ||
958 | case btUShort: /* unsigned short */ | |
959 | strcpy (p1, "unsigned short"); | |
960 | break; | |
961 | ||
962 | case btInt: /* int */ | |
963 | strcpy (p1, "int"); | |
964 | break; | |
965 | ||
966 | case btUInt: /* unsigned int */ | |
967 | strcpy (p1, "unsigned int"); | |
968 | break; | |
969 | ||
970 | case btLong: /* long */ | |
971 | strcpy (p1, "long"); | |
972 | break; | |
973 | ||
974 | case btULong: /* unsigned long */ | |
975 | strcpy (p1, "unsigned long"); | |
976 | break; | |
977 | ||
978 | case btFloat: /* float (real) */ | |
979 | strcpy (p1, "float"); | |
980 | break; | |
981 | ||
982 | case btDouble: /* Double (real) */ | |
983 | strcpy (p1, "double"); | |
984 | break; | |
985 | ||
986 | /* Structures add 1-2 aux words: | |
987 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
988 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
989 | ||
990 | case btStruct: /* Structure (Record) */ | |
991 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
992 | emit_aggregate (abfd, p1, &rndx, | |
993 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
994 | "struct"); | |
995 | indx++; /* skip aux words */ | |
996 | break; | |
997 | ||
998 | /* Unions add 1-2 aux words: | |
999 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1000 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1001 | ||
1002 | case btUnion: /* Union */ | |
1003 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1004 | emit_aggregate (abfd, p1, &rndx, | |
1005 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1006 | "union"); | |
1007 | indx++; /* skip aux words */ | |
1008 | break; | |
1009 | ||
1010 | /* Enumerations add 1-2 aux words: | |
1011 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1012 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1013 | ||
1014 | case btEnum: /* Enumeration */ | |
1015 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1016 | emit_aggregate (abfd, p1, &rndx, | |
1017 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1018 | "enum"); | |
1019 | indx++; /* skip aux words */ | |
1020 | break; | |
1021 | ||
1022 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1023 | strcpy (p1, "typedef"); | |
1024 | break; | |
1025 | ||
1026 | case btRange: /* subrange of int */ | |
1027 | strcpy (p1, "subrange"); | |
1028 | break; | |
1029 | ||
1030 | case btSet: /* pascal sets */ | |
1031 | strcpy (p1, "set"); | |
1032 | break; | |
1033 | ||
1034 | case btComplex: /* fortran complex */ | |
1035 | strcpy (p1, "complex"); | |
1036 | break; | |
1037 | ||
1038 | case btDComplex: /* fortran double complex */ | |
1039 | strcpy (p1, "double complex"); | |
1040 | break; | |
1041 | ||
1042 | case btIndirect: /* forward or unnamed typedef */ | |
1043 | strcpy (p1, "forward/unamed typedef"); | |
1044 | break; | |
1045 | ||
1046 | case btFixedDec: /* Fixed Decimal */ | |
1047 | strcpy (p1, "fixed decimal"); | |
1048 | break; | |
1049 | ||
1050 | case btFloatDec: /* Float Decimal */ | |
1051 | strcpy (p1, "float decimal"); | |
1052 | break; | |
1053 | ||
1054 | case btString: /* Varying Length Character String */ | |
1055 | strcpy (p1, "string"); | |
1056 | break; | |
1057 | ||
1058 | case btBit: /* Aligned Bit String */ | |
1059 | strcpy (p1, "bit"); | |
1060 | break; | |
1061 | ||
1062 | case btPicture: /* Picture */ | |
1063 | strcpy (p1, "picture"); | |
1064 | break; | |
1065 | ||
1066 | case btVoid: /* Void */ | |
1067 | strcpy (p1, "void"); | |
1068 | break; | |
1069 | ||
1070 | default: | |
1071 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1072 | break; | |
1073 | } | |
1074 | ||
1075 | p1 += strlen (buffer1); | |
1076 | ||
1077 | /* | |
1078 | * If this is a bitfield, get the bitsize. | |
1079 | */ | |
1080 | if (u.ti.fBitfield) | |
1081 | { | |
1082 | int bitsize; | |
1083 | ||
1084 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1085 | sprintf (p1, " : %d", bitsize); | |
1086 | p1 += strlen (buffer1); | |
1087 | } | |
1088 | ||
1089 | ||
1090 | /* | |
1091 | * Deal with any qualifiers. | |
1092 | */ | |
1093 | if (qualifiers[0].type != tqNil) | |
1094 | { | |
1095 | /* | |
1096 | * Snarf up any array bounds in the correct order. Arrays | |
1097 | * store 5 successive words in the aux. table: | |
1098 | * word 0 RNDXR to type of the bounds (ie, int) | |
1099 | * word 1 Current file descriptor index | |
1100 | * word 2 low bound | |
1101 | * word 3 high bound (or -1 if []) | |
1102 | * word 4 stride size in bits | |
1103 | */ | |
1104 | for (i = 0; i < 7; i++) | |
1105 | { | |
1106 | if (qualifiers[i].type == tqArray) | |
1107 | { | |
1108 | qualifiers[i].low_bound = | |
1109 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1110 | qualifiers[i].high_bound = | |
1111 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1112 | qualifiers[i].stride = | |
1113 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1114 | indx += 5; | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | /* | |
1119 | * Now print out the qualifiers. | |
1120 | */ | |
1121 | for (i = 0; i < 6; i++) | |
1122 | { | |
1123 | switch (qualifiers[i].type) | |
1124 | { | |
1125 | case tqNil: | |
1126 | case tqMax: | |
1127 | break; | |
1128 | ||
1129 | case tqPtr: | |
1130 | strcpy (p2, "ptr to "); | |
1131 | p2 += sizeof ("ptr to ")-1; | |
1132 | break; | |
1133 | ||
1134 | case tqVol: | |
1135 | strcpy (p2, "volatile "); | |
1136 | p2 += sizeof ("volatile ")-1; | |
1137 | break; | |
1138 | ||
1139 | case tqFar: | |
1140 | strcpy (p2, "far "); | |
1141 | p2 += sizeof ("far ")-1; | |
1142 | break; | |
1143 | ||
1144 | case tqProc: | |
1145 | strcpy (p2, "func. ret. "); | |
1146 | p2 += sizeof ("func. ret. "); | |
1147 | break; | |
1148 | ||
1149 | case tqArray: | |
1150 | { | |
1151 | int first_array = i; | |
1152 | int j; | |
1153 | ||
1154 | /* Print array bounds reversed (ie, in the order the C | |
1155 | programmer writes them). C is such a fun language.... */ | |
1156 | ||
1157 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1158 | i++; | |
1159 | ||
1160 | for (j = i; j >= first_array; j--) | |
1161 | { | |
1162 | strcpy (p2, "array ["); | |
1163 | p2 += sizeof ("array [")-1; | |
1164 | if (qualifiers[j].low_bound != 0) | |
1165 | sprintf (p2, | |
1166 | "%ld:%ld {%ld bits}", | |
1167 | (long) qualifiers[j].low_bound, | |
1168 | (long) qualifiers[j].high_bound, | |
1169 | (long) qualifiers[j].stride); | |
1170 | ||
1171 | else if (qualifiers[j].high_bound != -1) | |
1172 | sprintf (p2, | |
1173 | "%ld {%ld bits}", | |
1174 | (long) (qualifiers[j].high_bound + 1), | |
1175 | (long) (qualifiers[j].stride)); | |
1176 | ||
1177 | else | |
1178 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1179 | ||
1180 | p2 += strlen (p2); | |
1181 | strcpy (p2, "] of "); | |
1182 | p2 += sizeof ("] of ")-1; | |
1183 | } | |
1184 | } | |
1185 | break; | |
1186 | } | |
1187 | } | |
1188 | } | |
1189 | ||
1190 | strcpy (p2, buffer1); | |
1191 | return buffer2; | |
1192 | } | |
1193 | ||
1194 | /* Print information about an ECOFF symbol. */ | |
1195 | ||
1196 | static void | |
1197 | DEFUN (ecoff_print_symbol, (abfd, filep, symbol, how), | |
1198 | bfd *abfd AND | |
1199 | PTR filep AND | |
1200 | asymbol *symbol AND | |
1201 | bfd_print_symbol_type how) | |
1202 | { | |
1203 | FILE *file = (FILE *)filep; | |
1204 | ||
1205 | switch (how) | |
1206 | { | |
1207 | case bfd_print_symbol_name: | |
1208 | fprintf (file, "%s", symbol->name); | |
1209 | break; | |
1210 | case bfd_print_symbol_more: | |
1211 | if (ecoffsymbol (symbol)->local) | |
1212 | { | |
1213 | SYMR ecoff_sym; | |
1214 | ||
1215 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1216 | &ecoff_sym); | |
1217 | fprintf (file, "ecoff local %lx %x %x", | |
1218 | (unsigned long) ecoff_sym.value, | |
1219 | (unsigned) ecoff_sym.st, (unsigned) ecoff_sym.sc); | |
1220 | } | |
1221 | else | |
1222 | { | |
1223 | EXTR ecoff_ext; | |
1224 | ||
1225 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1226 | &ecoff_ext); | |
1227 | fprintf (file, "ecoff extern %lx %x %x", | |
1228 | (unsigned long) ecoff_ext.asym.value, | |
1229 | (unsigned) ecoff_ext.asym.st, | |
1230 | (unsigned) ecoff_ext.asym.sc); | |
1231 | } | |
1232 | break; | |
1233 | case bfd_print_symbol_nm: | |
1234 | { | |
1235 | CONST char *section_name = symbol->section->name; | |
1236 | ||
1237 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
1238 | fprintf (file, " %-5s %s %s", | |
1239 | section_name, | |
1240 | ecoffsymbol (symbol)->local ? "l" : "e", | |
1241 | symbol->name); | |
1242 | } | |
1243 | break; | |
1244 | case bfd_print_symbol_all: | |
1245 | /* Print out the symbols in a reasonable way */ | |
1246 | { | |
515c4292 ILT |
1247 | char type; |
1248 | int pos; | |
1249 | EXTR ecoff_ext; | |
1250 | char jmptbl; | |
1251 | char cobol_main; | |
1252 | char weakext; | |
1253 | ||
1254 | if (ecoffsymbol (symbol)->local) | |
1255 | { | |
1256 | ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, | |
1257 | &ecoff_ext.asym); | |
1258 | type = 'l'; | |
1259 | pos = (ecoffsymbol (symbol)->native.lnative | |
1260 | - ecoff_data (abfd)->external_sym | |
1261 | + ecoff_data (abfd)->symbolic_header.iextMax); | |
1262 | jmptbl = ' '; | |
1263 | cobol_main = ' '; | |
1264 | weakext = ' '; | |
1265 | } | |
1266 | else | |
1267 | { | |
1268 | ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, | |
1269 | &ecoff_ext); | |
1270 | type = 'e'; | |
1271 | pos = (ecoffsymbol (symbol)->native.enative | |
1272 | - ecoff_data (abfd)->external_ext); | |
1273 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1274 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1275 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1276 | } | |
1277 | ||
1278 | fprintf (file, "[%3d] %c %lx st %x sc %x indx %x %c%c%c %s", | |
1279 | pos, type, (unsigned long) ecoff_ext.asym.value, | |
1280 | (unsigned) ecoff_ext.asym.st, | |
1281 | (unsigned) ecoff_ext.asym.sc, | |
1282 | (unsigned) ecoff_ext.asym.index, | |
1283 | jmptbl, cobol_main, weakext, | |
1284 | symbol->name); | |
1285 | ||
1286 | if (ecoffsymbol (symbol)->fdr != NULL | |
1287 | && ecoff_ext.asym.index != indexNil) | |
1288 | { | |
1289 | unsigned indx; | |
1290 | int bigendian; | |
1291 | long sym_base; | |
1292 | union aux_ext *aux_base; | |
1293 | ||
1294 | indx = ecoff_ext.asym.index; | |
1295 | ||
1296 | /* sym_base is used to map the fdr relative indices which | |
1297 | appear in the file to the position number which we are | |
1298 | using. */ | |
1299 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1300 | if (ecoffsymbol (symbol)->local) | |
1301 | sym_base += ecoff_data (abfd)->symbolic_header.iextMax; | |
1302 | ||
1303 | /* aux_base is the start of the aux entries for this file; | |
1304 | asym.index is an offset from this. */ | |
1305 | aux_base = (ecoff_data (abfd)->external_aux | |
1306 | + ecoffsymbol (symbol)->fdr->iauxBase); | |
1307 | ||
1308 | /* The aux entries are stored in host byte order; the | |
1309 | order is indicated by a bit in the fdr. */ | |
1310 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1311 | ||
1312 | /* This switch is basically from gcc/mips-tdump.c */ | |
1313 | switch (ecoff_ext.asym.st) | |
1314 | { | |
1315 | case stNil: | |
1316 | case stLabel: | |
1317 | break; | |
1318 | ||
1319 | case stFile: | |
1320 | case stBlock: | |
1321 | printf ("\n End+1 symbol: %ld", indx + sym_base); | |
1322 | break; | |
1323 | ||
1324 | case stEnd: | |
1325 | if (ecoff_ext.asym.sc == scText | |
1326 | || ecoff_ext.asym.sc == scInfo) | |
1327 | printf ("\n First symbol: %ld", indx + sym_base); | |
1328 | else | |
1329 | printf ("\n First symbol: %ld", | |
1330 | (AUX_GET_ISYM (bigendian, | |
1331 | &aux_base[ecoff_ext.asym.index]) | |
1332 | + sym_base)); | |
1333 | break; | |
1334 | ||
1335 | case stProc: | |
1336 | case stStaticProc: | |
1337 | if (MIPS_IS_STAB (&ecoff_ext.asym)) | |
1338 | ; | |
1339 | else if (ecoffsymbol (symbol)->local) | |
1340 | printf ("\n End+1 symbol: %-7ld Type: %s", | |
1341 | (AUX_GET_ISYM (bigendian, | |
1342 | &aux_base[ecoff_ext.asym.index]) | |
1343 | + sym_base), | |
1344 | type_to_string (abfd, aux_base, indx + 1, | |
1345 | bigendian)); | |
1346 | else | |
b6bef862 ILT |
1347 | printf ("\n Local symbol: %d", |
1348 | (indx | |
1349 | + sym_base | |
1350 | + ecoff_data (abfd)->symbolic_header.iextMax)); | |
515c4292 ILT |
1351 | break; |
1352 | ||
1353 | default: | |
1354 | if (!MIPS_IS_STAB (&ecoff_ext.asym)) | |
1355 | printf ("\n Type: %s", | |
1356 | type_to_string (abfd, aux_base, indx, bigendian)); | |
1357 | break; | |
1358 | } | |
1359 | } | |
1360 | } | |
1361 | break; | |
1362 | } | |
1363 | } | |
1364 | \f | |
b6bef862 ILT |
1365 | /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in |
1366 | external form. They use a bit which indicates whether the symbol | |
1367 | is external. */ | |
1368 | ||
1369 | /* Swap a reloc in. */ | |
1370 | ||
1371 | static void | |
1372 | DEFUN (ecoff_swap_reloc_in, (abfd, ext, intern), | |
1373 | bfd *abfd AND | |
1374 | RELOC *ext AND | |
1375 | struct internal_reloc *intern) | |
1376 | { | |
1377 | intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr); | |
1378 | if (abfd->xvec->header_byteorder_big_p != false) | |
1379 | { | |
c3fe0c41 | 1380 | intern->r_symndx = (((int) ext->r_bits[0] |
b6bef862 | 1381 | << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) |
c3fe0c41 | 1382 | | ((int) ext->r_bits[1] |
b6bef862 | 1383 | << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) |
c3fe0c41 | 1384 | | ((int) ext->r_bits[2] |
b6bef862 ILT |
1385 | << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); |
1386 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) | |
1387 | >> RELOC_BITS3_TYPE_SH_BIG); | |
1388 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; | |
1389 | } | |
1390 | else | |
1391 | { | |
c3fe0c41 | 1392 | intern->r_symndx = (((int) ext->r_bits[0] |
b6bef862 | 1393 | << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) |
c3fe0c41 | 1394 | | ((int) ext->r_bits[1] |
b6bef862 | 1395 | << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) |
c3fe0c41 | 1396 | | ((int) ext->r_bits[2] |
b6bef862 ILT |
1397 | << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); |
1398 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) | |
1399 | >> RELOC_BITS3_TYPE_SH_LITTLE); | |
1400 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | /* Swap a reloc out. */ | |
1405 | ||
1406 | static unsigned int | |
1407 | DEFUN (ecoff_swap_reloc_out, (abfd, src, dst), | |
1408 | bfd *abfd AND | |
1409 | PTR src AND | |
1410 | PTR dst) | |
1411 | { | |
1412 | struct internal_reloc *intern = (struct internal_reloc *) src; | |
1413 | RELOC *ext = (RELOC *) dst; | |
1414 | ||
1415 | bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr); | |
1416 | if (abfd->xvec->header_byteorder_big_p != false) | |
1417 | { | |
1418 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; | |
1419 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; | |
1420 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; | |
1421 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) | |
1422 | & RELOC_BITS3_TYPE_BIG) | |
1423 | | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); | |
1424 | } | |
1425 | else | |
1426 | { | |
1427 | ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; | |
1428 | ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; | |
1429 | ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; | |
1430 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) | |
1431 | & RELOC_BITS3_TYPE_LITTLE) | |
1432 | | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); | |
1433 | } | |
1434 | ||
1435 | return RELSZ; | |
1436 | } | |
1437 | ||
bf4b84bc ILT |
1438 | /* ECOFF relocs are either against external symbols, or against |
1439 | sections. If we are producing relocateable output, and the reloc | |
1440 | is against an external symbol, the resulting reloc will also be | |
1441 | against the same symbol. In such a case, we don't want to change | |
1442 | anything about the way the reloc is handled, since it will all be | |
1443 | done at final link time. Rather than put special case code into | |
1444 | bfd_perform_relocation, all the reloc types use this howto | |
1445 | function. It just short circuits the reloc if producing | |
1446 | relocateable output against an external symbol. */ | |
1447 | ||
1448 | static bfd_reloc_status_type | |
1449 | ecoff_generic_reloc (abfd, | |
1450 | reloc_entry, | |
1451 | symbol, | |
1452 | data, | |
1453 | input_section, | |
1454 | output_bfd) | |
1455 | bfd *abfd; | |
1456 | arelent *reloc_entry; | |
1457 | asymbol *symbol; | |
1458 | PTR data; | |
1459 | asection *input_section; | |
1460 | bfd *output_bfd; | |
1461 | { | |
1462 | if (output_bfd != (bfd *) NULL | |
1463 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1464 | { | |
1465 | reloc_entry->address += input_section->output_offset; | |
1466 | return bfd_reloc_ok; | |
1467 | } | |
1468 | ||
1469 | return bfd_reloc_continue; | |
1470 | } | |
1471 | ||
b6bef862 ILT |
1472 | /* Do a REFHI relocation. The next reloc must be the corresponding |
1473 | REFLO. This has to be done in a function so that carry is handled | |
1474 | correctly. */ | |
1475 | ||
1476 | static bfd_reloc_status_type | |
bf4b84bc ILT |
1477 | ecoff_refhi_reloc (abfd, |
1478 | reloc_entry, | |
1479 | symbol, | |
1480 | data, | |
1481 | input_section, | |
1482 | output_bfd) | |
1483 | bfd *abfd; | |
1484 | arelent *reloc_entry; | |
1485 | asymbol *symbol; | |
1486 | PTR data; | |
1487 | asection *input_section; | |
1488 | bfd *output_bfd; | |
b6bef862 ILT |
1489 | { |
1490 | bfd_reloc_status_type ret; | |
1491 | arelent *rello; | |
1492 | bfd_vma relocation; | |
b6bef862 | 1493 | unsigned long insn; |
c3fe0c41 ILT |
1494 | unsigned long val; |
1495 | unsigned long vallo; | |
b6bef862 | 1496 | |
bf4b84bc ILT |
1497 | /* If we're relocating, and this an external symbol, we don't want |
1498 | to change anything. */ | |
1499 | if (output_bfd != (bfd *) NULL | |
1500 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1501 | { | |
1502 | reloc_entry->address += input_section->output_offset; | |
1503 | return bfd_reloc_ok; | |
1504 | } | |
1505 | ||
b6bef862 ILT |
1506 | ret = bfd_reloc_ok; |
1507 | if (symbol->section == &bfd_und_section | |
1508 | && output_bfd == (bfd *) NULL) | |
1509 | ret = bfd_reloc_undefined; | |
1510 | ||
1511 | rello = reloc_entry + 1; | |
1512 | BFD_ASSERT (rello->howto->type == ECOFF_R_REFLO | |
1513 | && *rello->sym_ptr_ptr == *reloc_entry->sym_ptr_ptr); | |
1514 | ||
382f2a3d | 1515 | if (bfd_is_com_section (symbol->section)) |
b6bef862 ILT |
1516 | relocation = 0; |
1517 | else | |
1518 | relocation = symbol->value; | |
1519 | ||
bf4b84bc ILT |
1520 | relocation += symbol->section->output_section->vma; |
1521 | relocation += symbol->section->output_offset; | |
c3fe0c41 | 1522 | relocation += reloc_entry->addend; |
b6bef862 ILT |
1523 | |
1524 | if (reloc_entry->address > input_section->_cooked_size) | |
1525 | return bfd_reloc_outofrange; | |
1526 | ||
b6bef862 | 1527 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
c3fe0c41 ILT |
1528 | vallo = bfd_get_32 (abfd, (bfd_byte *) data + rello->address) & 0xffff; |
1529 | val = ((insn & 0xffff) << 16) + vallo; | |
1530 | val += relocation; | |
1531 | ||
1532 | /* The low order 16 bits are always treated as a signed value. | |
1533 | Therefore, a negative value in the low order bits requires an | |
1534 | adjustment in the high order bits. We need to make this | |
1535 | adjustment in two ways: once for the bits we took from the data, | |
1536 | and once for the bits we are putting back in to the data. */ | |
1537 | if ((vallo & 0x8000) != 0) | |
1538 | val -= 0x10000; | |
1539 | if ((val & 0x8000) != 0) | |
1540 | val += 0x10000; | |
1541 | ||
1542 | insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); | |
b6bef862 ILT |
1543 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
1544 | ||
c3fe0c41 ILT |
1545 | if (output_bfd != (bfd *) NULL) |
1546 | reloc_entry->address += input_section->output_offset; | |
1547 | ||
b6bef862 ILT |
1548 | return ret; |
1549 | } | |
1550 | ||
1551 | /* Do a GPREL relocation. This is a 16 bit value which must become | |
1552 | the offset from the gp register. */ | |
1553 | ||
1554 | static bfd_reloc_status_type | |
bf4b84bc ILT |
1555 | ecoff_gprel_reloc (abfd, |
1556 | reloc_entry, | |
1557 | symbol, | |
1558 | data, | |
1559 | input_section, | |
1560 | output_bfd) | |
1561 | bfd *abfd; | |
1562 | arelent *reloc_entry; | |
1563 | asymbol *symbol; | |
1564 | PTR data; | |
1565 | asection *input_section; | |
1566 | bfd *output_bfd; | |
b6bef862 | 1567 | { |
c3fe0c41 | 1568 | boolean relocateable; |
b6bef862 ILT |
1569 | bfd_vma relocation; |
1570 | unsigned long val; | |
1571 | unsigned long insn; | |
1572 | ||
bf4b84bc ILT |
1573 | /* If we're relocating, and this an external symbol, we don't want |
1574 | to change anything. */ | |
1575 | if (output_bfd != (bfd *) NULL | |
1576 | && (symbol->flags & BSF_SECTION_SYM) == 0) | |
1577 | { | |
1578 | reloc_entry->address += input_section->output_offset; | |
1579 | return bfd_reloc_ok; | |
1580 | } | |
1581 | ||
b6bef862 | 1582 | if (output_bfd != (bfd *) NULL) |
c3fe0c41 ILT |
1583 | relocateable = true; |
1584 | else | |
1585 | { | |
1586 | relocateable = false; | |
1587 | output_bfd = symbol->section->output_section->owner; | |
1588 | } | |
b6bef862 | 1589 | |
c3fe0c41 ILT |
1590 | if (symbol->section == &bfd_und_section |
1591 | && relocateable == false) | |
1592 | return bfd_reloc_undefined; | |
b6bef862 | 1593 | |
c3fe0c41 ILT |
1594 | /* We have to figure out the gp value, so that we can adjust the |
1595 | symbol value correctly. We look up the symbol _gp in the output | |
1596 | BFD. If we can't find it, we're stuck. We cache it in the ECOFF | |
1597 | target data. */ | |
b6bef862 ILT |
1598 | if (ecoff_data (output_bfd)->gp == 0) |
1599 | { | |
bf4b84bc | 1600 | if (relocateable != false) |
c3fe0c41 ILT |
1601 | { |
1602 | /* Make up a value. */ | |
1603 | ecoff_data (output_bfd)->gp = | |
1604 | symbol->section->output_section->vma + 0x4000; | |
1605 | } | |
1606 | else | |
1607 | { | |
1608 | unsigned int count; | |
1609 | asymbol **sym; | |
1610 | unsigned int i; | |
b6bef862 | 1611 | |
c3fe0c41 ILT |
1612 | count = bfd_get_symcount (output_bfd); |
1613 | sym = bfd_get_outsymbols (output_bfd); | |
b6bef862 | 1614 | |
c3fe0c41 ILT |
1615 | /* We should do something more friendly here, but we don't |
1616 | have a good reloc status to return. */ | |
1617 | if (sym == (asymbol **) NULL) | |
1618 | abort (); | |
b6bef862 | 1619 | |
c3fe0c41 | 1620 | for (i = 0; i < count; i++, sym++) |
b6bef862 | 1621 | { |
c3fe0c41 ILT |
1622 | register CONST char *name; |
1623 | ||
1624 | name = bfd_asymbol_name (*sym); | |
1625 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1626 | { | |
1627 | ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym); | |
1628 | break; | |
1629 | } | |
b6bef862 | 1630 | } |
b6bef862 | 1631 | |
c3fe0c41 ILT |
1632 | /* We should do something more friendly here, but we don't have |
1633 | a good reloc status to return. */ | |
1634 | if (i >= count) | |
1635 | abort (); | |
1636 | } | |
b6bef862 ILT |
1637 | } |
1638 | ||
382f2a3d | 1639 | if (bfd_is_com_section (symbol->section)) |
b6bef862 ILT |
1640 | relocation = 0; |
1641 | else | |
1642 | relocation = symbol->value; | |
1643 | ||
1644 | relocation += symbol->section->output_section->vma; | |
1645 | relocation += symbol->section->output_offset; | |
1646 | ||
1647 | if (reloc_entry->address > input_section->_cooked_size) | |
1648 | return bfd_reloc_outofrange; | |
1649 | ||
1650 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
c3fe0c41 ILT |
1651 | |
1652 | /* Set val to the offset into the section (if we are relocating | |
1653 | against an external symbol, insn & 0xffff will be zero and so | |
1654 | will reloc_entry->addend). */ | |
1655 | val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; | |
1656 | if (val & 0x8000) | |
b6bef862 | 1657 | val -= 0x10000; |
c3fe0c41 ILT |
1658 | |
1659 | /* Adjust val for the final section location and GP value. */ | |
1660 | val += (relocation - ecoff_data (output_bfd)->gp); | |
1661 | ||
b6bef862 ILT |
1662 | insn = (insn &~ 0xffff) | (val & 0xffff); |
1663 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
1664 | ||
bf4b84bc | 1665 | if (relocateable != false) |
c3fe0c41 ILT |
1666 | reloc_entry->address += input_section->output_offset; |
1667 | ||
1668 | /* Make sure it fit in 16 bits. */ | |
1669 | if (val >= 0x8000 && val < 0xffff8000) | |
1670 | return bfd_reloc_outofrange; | |
1671 | ||
1672 | return bfd_reloc_ok; | |
b6bef862 ILT |
1673 | } |
1674 | ||
1675 | /* How to process the various relocs types. */ | |
1676 | ||
1677 | static reloc_howto_type ecoff_howto_table[] = | |
1678 | { | |
1679 | /* Reloc type 0 is ignored. The reloc reading code ensures that | |
1680 | this is a reference to the .abs section, which will cause | |
1681 | bfd_perform_relocation to do nothing. */ | |
1682 | HOWTO (ECOFF_R_IGNORE, /* type */ | |
1683 | 0, /* rightshift */ | |
1684 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1685 | 8, /* bitsize (obsolete) */ | |
1686 | false, /* pc_relative */ | |
1687 | 0, /* bitpos */ | |
1688 | false, /* absolute (obsolete) */ | |
1689 | false, /* complain_on_overflow */ | |
1690 | 0, /* special_function */ | |
1691 | "IGNORE", /* name */ | |
1692 | false, /* partial_inplace */ | |
1693 | 0, /* src_mask */ | |
1694 | 0, /* dst_mask */ | |
1695 | false), /* pcrel_offset */ | |
1696 | ||
1697 | /* A 16 bit reference to a symbol, normally from a data section. */ | |
1698 | HOWTO (ECOFF_R_REFHALF, /* type */ | |
1699 | 0, /* rightshift */ | |
1700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1701 | 16, /* bitsize (obsolete) */ | |
1702 | false, /* pc_relative */ | |
1703 | 0, /* bitpos */ | |
1704 | false, /* absolute (obsolete) */ | |
1705 | true, /* complain_on_overflow */ | |
bf4b84bc | 1706 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1707 | "REFHALF", /* name */ |
1708 | true, /* partial_inplace */ | |
1709 | 0xffff, /* src_mask */ | |
1710 | 0xffff, /* dst_mask */ | |
1711 | false), /* pcrel_offset */ | |
1712 | ||
1713 | /* A 32 bit reference to a symbol, normally from a data section. */ | |
1714 | HOWTO (ECOFF_R_REFWORD, /* type */ | |
1715 | 0, /* rightshift */ | |
1716 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1717 | 32, /* bitsize (obsolete) */ | |
1718 | false, /* pc_relative */ | |
1719 | 0, /* bitpos */ | |
1720 | false, /* absolute (obsolete) */ | |
1721 | true, /* complain_on_overflow */ | |
bf4b84bc | 1722 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1723 | "REFWORD", /* name */ |
1724 | true, /* partial_inplace */ | |
1725 | 0xffffffff, /* src_mask */ | |
1726 | 0xffffffff, /* dst_mask */ | |
1727 | false), /* pcrel_offset */ | |
1728 | ||
1729 | /* A 26 bit absolute jump address. */ | |
1730 | HOWTO (ECOFF_R_JMPADDR, /* type */ | |
1731 | 2, /* rightshift */ | |
1732 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1733 | 32, /* bitsize (obsolete) */ | |
1734 | false, /* pc_relative */ | |
1735 | 0, /* bitpos */ | |
1736 | false, /* absolute (obsolete) */ | |
1737 | true, /* complain_on_overflow */ | |
bf4b84bc | 1738 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1739 | "JMPADDR", /* name */ |
1740 | true, /* partial_inplace */ | |
1741 | 0x3ffffff, /* src_mask */ | |
1742 | 0x3ffffff, /* dst_mask */ | |
1743 | false), /* pcrel_offset */ | |
1744 | ||
1745 | /* The high 16 bits of a symbol value. Handled by the function | |
1746 | ecoff_refhi_reloc. */ | |
1747 | HOWTO (ECOFF_R_REFHI, /* type */ | |
1748 | 16, /* rightshift */ | |
1749 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1750 | 32, /* bitsize (obsolete) */ | |
1751 | false, /* pc_relative */ | |
1752 | 0, /* bitpos */ | |
1753 | false, /* absolute (obsolete) */ | |
1754 | true, /* complain_on_overflow */ | |
1755 | ecoff_refhi_reloc, /* special_function */ | |
1756 | "REFHI", /* name */ | |
1757 | true, /* partial_inplace */ | |
1758 | 0xffff, /* src_mask */ | |
1759 | 0xffff, /* dst_mask */ | |
1760 | false), /* pcrel_offset */ | |
1761 | ||
1762 | /* The low 16 bits of a symbol value. */ | |
1763 | HOWTO (ECOFF_R_REFLO, /* type */ | |
1764 | 0, /* rightshift */ | |
1765 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1766 | 32, /* bitsize (obsolete) */ | |
1767 | false, /* pc_relative */ | |
1768 | 0, /* bitpos */ | |
1769 | false, /* absolute (obsolete) */ | |
1770 | true, /* complain_on_overflow */ | |
bf4b84bc | 1771 | ecoff_generic_reloc, /* special_function */ |
b6bef862 ILT |
1772 | "REFLO", /* name */ |
1773 | true, /* partial_inplace */ | |
1774 | 0xffff, /* src_mask */ | |
1775 | 0xffff, /* dst_mask */ | |
1776 | false), /* pcrel_offset */ | |
1777 | ||
1778 | /* A reference to an offset from the gp register. Handled by the | |
1779 | function ecoff_gprel_reloc. */ | |
1780 | HOWTO (ECOFF_R_GPREL, /* type */ | |
1781 | 0, /* rightshift */ | |
1782 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1783 | 32, /* bitsize (obsolete) */ | |
1784 | false, /* pc_relative */ | |
1785 | 0, /* bitpos */ | |
1786 | false, /* absolute (obsolete) */ | |
1787 | true, /* complain_on_overflow */ | |
1788 | ecoff_gprel_reloc, /* special_function */ | |
1789 | "GPREL", /* name */ | |
1790 | true, /* partial_inplace */ | |
1791 | 0xffff, /* src_mask */ | |
1792 | 0xffff, /* dst_mask */ | |
1793 | false), /* pcrel_offset */ | |
1794 | ||
1795 | /* A reference to a literal using an offset from the gp register. | |
1796 | Handled by the function ecoff_gprel_reloc. */ | |
1797 | HOWTO (ECOFF_R_LITERAL, /* type */ | |
1798 | 0, /* rightshift */ | |
1799 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1800 | 32, /* bitsize (obsolete) */ | |
1801 | false, /* pc_relative */ | |
1802 | 0, /* bitpos */ | |
1803 | false, /* absolute (obsolete) */ | |
1804 | true, /* complain_on_overflow */ | |
1805 | ecoff_gprel_reloc, /* special_function */ | |
1806 | "LITERAL", /* name */ | |
1807 | true, /* partial_inplace */ | |
1808 | 0xffff, /* src_mask */ | |
1809 | 0xffff, /* dst_mask */ | |
1810 | false) /* pcrel_offset */ | |
1811 | }; | |
1812 | ||
1813 | /* Read in the relocs for a section. */ | |
1814 | ||
1815 | static boolean | |
1816 | DEFUN (ecoff_slurp_reloc_table, (abfd, section, symbols), | |
1817 | bfd *abfd AND | |
1818 | asection *section AND | |
1819 | asymbol **symbols) | |
1820 | { | |
1821 | RELOC *external_relocs; | |
1822 | arelent *internal_relocs; | |
1823 | arelent *rptr; | |
1824 | unsigned int i; | |
1825 | ||
1826 | if (section->relocation != (arelent *) NULL | |
1827 | || section->reloc_count == 0 | |
1828 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1829 | return true; | |
1830 | ||
1831 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1832 | return false; | |
1833 | ||
1834 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1835 | (sizeof (arelent) | |
1836 | * section->reloc_count)); | |
1837 | external_relocs = (RELOC *) bfd_alloc (abfd, RELSZ * section->reloc_count); | |
1838 | if (internal_relocs == (arelent *) NULL | |
1839 | || external_relocs == (RELOC *) NULL) | |
1840 | { | |
1841 | bfd_error = no_memory; | |
1842 | return false; | |
1843 | } | |
1844 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1845 | return false; | |
1846 | if (bfd_read (external_relocs, 1, RELSZ * section->reloc_count, abfd) | |
1847 | != RELSZ * section->reloc_count) | |
1848 | { | |
1849 | bfd_error = system_call_error; | |
1850 | return false; | |
1851 | } | |
1852 | ||
1853 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1854 | { | |
1855 | struct internal_reloc intern; | |
1856 | ||
1857 | ecoff_swap_reloc_in (abfd, external_relocs + i, &intern); | |
1858 | ||
c3fe0c41 | 1859 | if (intern.r_type > ECOFF_R_LITERAL) |
b6bef862 ILT |
1860 | abort (); |
1861 | ||
1862 | if (intern.r_extern) | |
1863 | { | |
1864 | /* r_symndx is an index into the external symbols. */ | |
1865 | BFD_ASSERT (intern.r_symndx >= 0 | |
1866 | && (intern.r_symndx | |
1867 | < ecoff_data (abfd)->symbolic_header.iextMax)); | |
1868 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
c3fe0c41 | 1869 | rptr->addend = 0; |
b6bef862 ILT |
1870 | } |
1871 | else | |
1872 | { | |
1873 | CONST char *sec_name; | |
1874 | asection *sec; | |
1875 | ||
1876 | /* r_symndx is a section key. */ | |
1877 | switch (intern.r_symndx) | |
1878 | { | |
1879 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1880 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1881 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1882 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1883 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1884 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1885 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1886 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1887 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
1888 | default: abort (); | |
1889 | } | |
1890 | ||
1891 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1892 | if (sec == (asection *) NULL) | |
1893 | abort (); | |
1894 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
c3fe0c41 ILT |
1895 | |
1896 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
1897 | if (intern.r_type == ECOFF_R_GPREL | |
1898 | || intern.r_type == ECOFF_R_LITERAL) | |
1899 | rptr->addend += ecoff_data (abfd)->gp; | |
b6bef862 ILT |
1900 | } |
1901 | ||
1902 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
b6bef862 ILT |
1903 | rptr->howto = &ecoff_howto_table[intern.r_type]; |
1904 | ||
1905 | /* If the type is ECOFF_R_IGNORE, make sure this is a reference | |
1906 | to the absolute section so that the reloc is ignored. */ | |
1907 | if (intern.r_type == ECOFF_R_IGNORE) | |
1908 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1909 | } | |
1910 | ||
1911 | bfd_release (abfd, external_relocs); | |
1912 | ||
1913 | section->relocation = internal_relocs; | |
1914 | ||
1915 | return true; | |
1916 | } | |
1917 | ||
1918 | /* Get a canonical list of relocs. */ | |
1919 | ||
1920 | static unsigned int | |
1921 | DEFUN (ecoff_canonicalize_reloc, (abfd, section, relptr, symbols), | |
1922 | bfd *abfd AND | |
1923 | asection *section AND | |
1924 | arelent **relptr AND | |
1925 | asymbol **symbols) | |
1926 | { | |
1927 | unsigned int count; | |
1928 | ||
1929 | if (section->flags & SEC_CONSTRUCTOR) | |
1930 | { | |
1931 | arelent_chain *chain; | |
1932 | ||
1933 | /* This section has relocs made up by us, not the file, so take | |
1934 | them out of their chain and place them into the data area | |
1935 | provided. */ | |
1936 | for (count = 0, chain = section->constructor_chain; | |
1937 | count < section->reloc_count; | |
1938 | count++, chain = chain->next) | |
1939 | *relptr++ = &chain->relent; | |
1940 | } | |
bf4b84bc | 1941 | else |
b6bef862 ILT |
1942 | { |
1943 | arelent *tblptr; | |
1944 | ||
1945 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1946 | return 0; | |
1947 | ||
1948 | tblptr = section->relocation; | |
1949 | if (tblptr == (arelent *) NULL) | |
1950 | return 0; | |
1951 | ||
1952 | for (count = 0; count < section->reloc_count; count++) | |
1953 | *relptr++ = tblptr++; | |
1954 | } | |
1955 | ||
1956 | *relptr = (arelent *) NULL; | |
1957 | ||
1958 | return section->reloc_count; | |
1959 | } | |
1960 | \f | |
515c4292 ILT |
1961 | /* Provided a BFD, a section and an offset into the section, calculate |
1962 | and return the name of the source file and the line nearest to the | |
1963 | wanted location. */ | |
1964 | ||
1965 | static boolean | |
1966 | DEFUN (ecoff_find_nearest_line, (abfd, | |
1967 | section, | |
1968 | ignore_symbols, | |
1969 | offset, | |
1970 | filename_ptr, | |
1971 | functionname_ptr, | |
1972 | retline_ptr), | |
1973 | bfd *abfd AND | |
1974 | asection *section AND | |
1975 | asymbol **ignore_symbols AND | |
1976 | bfd_vma offset AND | |
1977 | CONST char **filename_ptr AND | |
1978 | CONST char **functionname_ptr AND | |
1979 | unsigned int *retline_ptr) | |
1980 | { | |
1981 | FDR *fdr_ptr; | |
1982 | FDR *fdr_start; | |
1983 | FDR *fdr_end; | |
1984 | FDR *fdr_hold; | |
1985 | struct pdr_ext *pdr_ptr; | |
1986 | struct pdr_ext *pdr_end; | |
1987 | PDR pdr; | |
1988 | unsigned char *line_ptr; | |
1989 | unsigned char *line_end; | |
1990 | int lineno; | |
515c4292 ILT |
1991 | |
1992 | /* If we're not in the .text section, we don't have any line | |
1993 | numbers. */ | |
1994 | if (strcmp (section->name, _TEXT) != 0) | |
1995 | return false; | |
1996 | ||
8fa0d3a0 ILT |
1997 | /* Make sure we have the FDR's. */ |
1998 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1999 | || bfd_get_symcount (abfd) == 0) | |
2000 | return false; | |
2001 | ||
515c4292 ILT |
2002 | /* Each file descriptor (FDR) has a memory address. Here we track |
2003 | down which FDR we want. The FDR's are stored in increasing | |
2004 | memory order. If speed is ever important, this can become a | |
2005 | binary search. We must ignore FDR's with no PDR entries; they | |
2006 | will have the adr of the FDR before or after them. */ | |
2007 | fdr_start = ecoff_data (abfd)->fdr; | |
2008 | fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; | |
2009 | fdr_hold = (FDR *) NULL; | |
2010 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
2011 | { | |
2012 | if (offset < fdr_ptr->adr) | |
2013 | break; | |
2014 | if (fdr_ptr->cpd > 0) | |
2015 | fdr_hold = fdr_ptr; | |
2016 | } | |
2017 | if (fdr_hold == (FDR *) NULL) | |
2018 | return false; | |
2019 | fdr_ptr = fdr_hold; | |
2020 | ||
2021 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
2022 | have an address, which is relative to the FDR address, and are | |
2023 | also stored in increasing memory order. */ | |
2024 | offset -= fdr_ptr->adr; | |
2025 | pdr_ptr = ecoff_data (abfd)->external_pdr + fdr_ptr->ipdFirst; | |
2026 | pdr_end = pdr_ptr + fdr_ptr->cpd; | |
2027 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2028 | if (offset < pdr.adr) | |
2029 | return false; | |
2030 | for (pdr_ptr++; pdr_ptr < pdr_end; pdr_ptr++) | |
2031 | { | |
2032 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2033 | if (offset < pdr.adr) | |
2034 | break; | |
2035 | } | |
2036 | ||
2037 | /* Now we can look for the actual line number. The line numbers are | |
2038 | stored in a very funky format, which I won't try to describe. | |
2039 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
2040 | we want; we need this to compute line_end. */ | |
2041 | line_end = ecoff_data (abfd)->line; | |
2042 | if (pdr_ptr == pdr_end) | |
2043 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
2044 | else | |
2045 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
2046 | ||
2047 | /* Now change pdr and pdr_ptr to the one we want. */ | |
2048 | pdr_ptr--; | |
2049 | ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); | |
2050 | ||
2051 | offset -= pdr.adr; | |
2052 | lineno = pdr.lnLow; | |
2053 | line_ptr = (ecoff_data (abfd)->line | |
2054 | + fdr_ptr->cbLineOffset | |
2055 | + pdr.cbLineOffset); | |
2056 | while (line_ptr < line_end) | |
2057 | { | |
2058 | int delta; | |
2059 | int count; | |
2060 | ||
2061 | delta = *line_ptr >> 4; | |
2062 | if (delta >= 0x8) | |
2063 | delta -= 0x10; | |
2064 | count = (*line_ptr & 0xf) + 1; | |
2065 | ++line_ptr; | |
2066 | if (delta == -8) | |
2067 | { | |
2068 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
2069 | if (delta >= 0x8000) | |
2070 | delta -= 0x10000; | |
2071 | line_ptr += 2; | |
2072 | } | |
2073 | lineno += delta; | |
2074 | if (offset < count * 4) | |
2075 | break; | |
2076 | offset -= count * 4; | |
2077 | } | |
2078 | ||
2079 | /* If offset is too large, this line is not interesting. */ | |
2080 | if (offset > 100) | |
2081 | return false; | |
2082 | ||
bf4b84bc ILT |
2083 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, |
2084 | at least according to gdb/mipsread.c. */ | |
2085 | if (fdr_ptr->rss == -1) | |
2086 | { | |
2087 | *filename_ptr = NULL; | |
2088 | if (pdr.isym == -1) | |
2089 | *functionname_ptr = NULL; | |
2090 | else | |
2091 | { | |
2092 | EXTR proc_ext; | |
2093 | ||
2094 | ecoff_swap_ext_in (abfd, | |
2095 | (ecoff_data (abfd)->external_ext | |
2096 | + pdr.isym), | |
2097 | &proc_ext); | |
2098 | *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss; | |
2099 | } | |
2100 | } | |
2101 | else | |
2102 | { | |
2103 | SYMR proc_sym; | |
2104 | ||
2105 | *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; | |
2106 | ecoff_swap_sym_in (abfd, | |
2107 | (ecoff_data (abfd)->external_sym | |
2108 | + fdr_ptr->isymBase | |
2109 | + pdr.isym), | |
2110 | &proc_sym); | |
2111 | *functionname_ptr = (ecoff_data (abfd)->ss | |
2112 | + fdr_ptr->issBase | |
2113 | + proc_sym.iss); | |
2114 | } | |
515c4292 ILT |
2115 | *retline_ptr = lineno; |
2116 | return true; | |
2117 | } | |
2118 | \f | |
8fa0d3a0 ILT |
2119 | /* We can't use the generic linking routines for ECOFF, because we |
2120 | have to handle all the debugging information. The generic link | |
2121 | routine just works out the section contents and attaches a list of | |
2122 | symbols. | |
2123 | ||
2124 | We link by looping over all the seclets. We make two passes. On | |
2125 | the first we set the actual section contents and determine the size | |
2126 | of the debugging information. On the second we accumulate the | |
2127 | debugging information and write it out. | |
2128 | ||
2129 | This currently always accumulates the debugging information, which | |
2130 | is incorrect, because it ignores the -s and -S options of the | |
2131 | linker. The linker needs to be modified to give us that | |
2132 | information in a more useful format (currently it just provides a | |
2133 | list of symbols which should appear in the output file). */ | |
2134 | ||
2135 | /* Clear the output_has_begun flag for all the input BFD's. We use it | |
2136 | to avoid linking in the debugging information for a BFD more than | |
2137 | once. */ | |
2138 | ||
2139 | static void | |
2140 | DEFUN (ecoff_clear_output_flags, (abfd), | |
2141 | bfd *abfd) | |
2142 | { | |
2143 | register asection *o; | |
2144 | register bfd_seclet_type *p; | |
2145 | ||
2146 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2147 | for (p = o->seclets_head; | |
2148 | p != (bfd_seclet_type *) NULL; | |
2149 | p = p->next) | |
2150 | if (p->type == bfd_indirect_seclet) | |
2151 | p->u.indirect.section->owner->output_has_begun = false; | |
2152 | } | |
2153 | ||
2154 | /* Handle an indirect seclet on the first pass. Set the contents of | |
2155 | the output section, and accumulate the debugging information if | |
2156 | any. */ | |
2157 | ||
2158 | static boolean | |
2159 | DEFUN (ecoff_rel, (output_bfd, seclet, output_section, data, relocateable), | |
2160 | bfd *output_bfd AND | |
2161 | bfd_seclet_type *seclet AND | |
2162 | asection *output_section AND | |
2163 | PTR data AND | |
2164 | boolean relocateable) | |
2165 | { | |
2166 | bfd *input_bfd; | |
2167 | HDRR *output_symhdr; | |
2168 | HDRR *input_symhdr; | |
c3fe0c41 ILT |
2169 | ecoff_symbol_type *sym_ptr; |
2170 | ecoff_symbol_type *sym_end; | |
8fa0d3a0 ILT |
2171 | |
2172 | if ((output_section->flags & SEC_HAS_CONTENTS) | |
2173 | && !(output_section->flags & SEC_NEVER_LOAD) | |
2174 | && (output_section->flags & SEC_LOAD) | |
2175 | && seclet->size) | |
2176 | { | |
2177 | data = (PTR) bfd_get_relocated_section_contents (output_bfd, | |
2178 | seclet, | |
2179 | data, | |
2180 | relocateable); | |
2181 | if (bfd_set_section_contents (output_bfd, | |
2182 | output_section, | |
2183 | data, | |
2184 | seclet->offset, | |
2185 | seclet->size) | |
2186 | == false) | |
2187 | { | |
2188 | abort(); | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | input_bfd = seclet->u.indirect.section->owner; | |
2193 | ||
2194 | /* We want to figure out how much space will be required to | |
2195 | incorporate all the debugging information from input_bfd. We use | |
2196 | the output_has_begun field to avoid adding it in more than once. | |
2197 | The actual incorporation is done in the second pass, in | |
2198 | ecoff_get_debug. The code has to parallel that code in its | |
2199 | manipulations of output_symhdr. */ | |
2200 | ||
2201 | if (input_bfd->output_has_begun) | |
2202 | return true; | |
2203 | input_bfd->output_has_begun = true; | |
2204 | ||
2205 | output_symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2206 | ||
2207 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2208 | { | |
2209 | asymbol **symbols; | |
2210 | asymbol **sym_ptr; | |
2211 | asymbol **sym_end; | |
2212 | ||
c3fe0c41 ILT |
2213 | /* We just accumulate local symbols from a non-ECOFF BFD. The |
2214 | external symbols are handled separately. */ | |
8fa0d3a0 ILT |
2215 | |
2216 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2217 | get_symtab_upper_bound (input_bfd)); | |
2218 | if (symbols == (asymbol **) NULL) | |
2219 | { | |
2220 | bfd_error = no_memory; | |
2221 | return false; | |
2222 | } | |
2223 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2224 | ||
2225 | for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) | |
2226 | { | |
2227 | size_t len; | |
2228 | ||
2229 | len = strlen ((*sym_ptr)->name); | |
2230 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
2231 | { | |
2232 | ++output_symhdr->isymMax; | |
2233 | output_symhdr->issMax += len + 1; | |
2234 | } | |
8fa0d3a0 ILT |
2235 | } |
2236 | ||
2237 | bfd_release (output_bfd, (PTR) symbols); | |
2238 | ||
2239 | ++output_symhdr->ifdMax; | |
2240 | ||
2241 | return true; | |
2242 | } | |
2243 | ||
2244 | /* We simply add in the information from another ECOFF BFD. First | |
2245 | we make sure we have the symbolic information. */ | |
c3fe0c41 | 2246 | if (ecoff_slurp_symbol_table (input_bfd) == false) |
8fa0d3a0 ILT |
2247 | return false; |
2248 | if (bfd_get_symcount (input_bfd) == 0) | |
2249 | return true; | |
2250 | ||
2251 | input_symhdr = &ecoff_data (input_bfd)->symbolic_header; | |
2252 | ||
c3fe0c41 ILT |
2253 | /* Figure out how much information we are going to be putting in. |
2254 | The external symbols are handled separately. */ | |
8fa0d3a0 ILT |
2255 | output_symhdr->ilineMax += input_symhdr->ilineMax; |
2256 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2257 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2258 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2259 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2260 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2261 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2262 | output_symhdr->issMax += input_symhdr->issMax; | |
8fa0d3a0 | 2263 | output_symhdr->ifdMax += input_symhdr->ifdMax; |
8fa0d3a0 ILT |
2264 | |
2265 | /* The RFD's are special, since we create them if needed. */ | |
2266 | if (input_symhdr->crfd > 0) | |
2267 | output_symhdr->crfd += input_symhdr->crfd; | |
2268 | else | |
2269 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2270 | ||
2271 | return true; | |
2272 | } | |
2273 | ||
2274 | /* Handle an arbitrary seclet on the first pass. */ | |
2275 | ||
2276 | static boolean | |
2277 | DEFUN (ecoff_dump_seclet, (abfd, seclet, section, data, relocateable), | |
2278 | bfd *abfd AND | |
2279 | bfd_seclet_type *seclet AND | |
2280 | asection *section AND | |
2281 | PTR data AND | |
2282 | boolean relocateable) | |
2283 | { | |
2284 | switch (seclet->type) | |
2285 | { | |
2286 | case bfd_indirect_seclet: | |
2287 | /* The contents of this section come from another one somewhere | |
2288 | else. */ | |
2289 | return ecoff_rel (abfd, seclet, section, data, relocateable); | |
2290 | ||
2291 | case bfd_fill_seclet: | |
c3fe0c41 ILT |
2292 | /* Fill in the section with fill.value. This is used to pad out |
2293 | sections, but we must avoid padding the .bss section. */ | |
2294 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
2295 | { | |
2296 | if (seclet->u.fill.value != 0) | |
2297 | abort (); | |
2298 | } | |
2299 | else | |
2300 | { | |
2301 | char *d = (char *) bfd_alloc (abfd, seclet->size); | |
2302 | unsigned int i; | |
2303 | boolean ret; | |
2304 | ||
2305 | for (i = 0; i < seclet->size; i+=2) | |
2306 | d[i] = seclet->u.fill.value >> 8; | |
2307 | for (i = 1; i < seclet->size; i+=2) | |
2308 | d[i] = seclet->u.fill.value; | |
2309 | ret = bfd_set_section_contents (abfd, section, d, seclet->offset, | |
2310 | seclet->size); | |
2311 | bfd_release (abfd, (PTR) d); | |
2312 | return ret; | |
2313 | } | |
2314 | break; | |
8fa0d3a0 ILT |
2315 | |
2316 | default: | |
2317 | abort(); | |
2318 | } | |
2319 | ||
2320 | return true; | |
2321 | } | |
2322 | ||
2323 | /* Add a string to the debugging information we are accumulating for a | |
2324 | file. Return the offset from the fdr string base or from the | |
2325 | external string base. */ | |
2326 | ||
2327 | static long | |
2328 | DEFUN (ecoff_add_string, (output_bfd, fdr, string, external), | |
2329 | bfd *output_bfd AND | |
2330 | FDR *fdr AND | |
2331 | CONST char *string AND | |
2332 | boolean external) | |
2333 | { | |
2334 | HDRR *symhdr; | |
2335 | size_t len; | |
2336 | long ret; | |
2337 | ||
2338 | symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2339 | len = strlen (string); | |
2340 | if (external) | |
2341 | { | |
2342 | strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); | |
2343 | ret = symhdr->issExtMax; | |
2344 | symhdr->issExtMax += len + 1; | |
2345 | } | |
2346 | else | |
2347 | { | |
2348 | strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); | |
2349 | ret = fdr->cbSs; | |
2350 | symhdr->issMax += len + 1; | |
2351 | fdr->cbSs += len + 1; | |
2352 | } | |
2353 | return ret; | |
2354 | } | |
2355 | ||
2356 | /* Accumulate the debugging information from an input section. */ | |
2357 | ||
2358 | static boolean | |
5e462ed9 | 2359 | DEFUN (ecoff_get_debug, (output_bfd, seclet, section, relocateable), |
8fa0d3a0 ILT |
2360 | bfd *output_bfd AND |
2361 | bfd_seclet_type *seclet AND | |
5e462ed9 ILT |
2362 | asection *section AND |
2363 | boolean relocateable) | |
8fa0d3a0 ILT |
2364 | { |
2365 | bfd *input_bfd; | |
2366 | HDRR *output_symhdr; | |
2367 | HDRR *input_symhdr; | |
2368 | ecoff_data_type *output_ecoff; | |
2369 | ecoff_data_type *input_ecoff; | |
c3fe0c41 ILT |
2370 | unsigned int count; |
2371 | struct sym_ext *sym_out; | |
2372 | struct ext_ext *ext_out; | |
2373 | ecoff_symbol_type *esym_ptr; | |
2374 | ecoff_symbol_type *esym_end; | |
8fa0d3a0 ILT |
2375 | FDR *fdr_ptr; |
2376 | FDR *fdr_end; | |
2377 | struct fdr_ext *fdr_out; | |
8fa0d3a0 ILT |
2378 | |
2379 | input_bfd = seclet->u.indirect.section->owner; | |
2380 | ||
2381 | /* Don't get the information more than once. */ | |
2382 | if (input_bfd->output_has_begun) | |
2383 | return true; | |
2384 | input_bfd->output_has_begun = true; | |
2385 | ||
2386 | output_ecoff = ecoff_data (output_bfd); | |
2387 | output_symhdr = &output_ecoff->symbolic_header; | |
2388 | ||
2389 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2390 | { | |
2391 | FDR fdr; | |
2392 | asymbol **symbols; | |
2393 | asymbol **sym_ptr; | |
2394 | asymbol **sym_end; | |
2395 | ||
2396 | /* This is not an ECOFF BFD. Just gather the symbols. */ | |
2397 | ||
2398 | memset (&fdr, 0, sizeof fdr); | |
2399 | ||
2400 | fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; | |
2401 | fdr.issBase = output_symhdr->issMax; | |
2402 | fdr.cbSs = 0; | |
2403 | fdr.rss = ecoff_add_string (output_bfd, | |
2404 | &fdr, | |
2405 | bfd_get_filename (input_bfd), | |
2406 | false); | |
2407 | fdr.isymBase = output_symhdr->isymMax; | |
2408 | ||
c3fe0c41 | 2409 | /* Get the local symbols from the input BFD. */ |
8fa0d3a0 ILT |
2410 | symbols = (asymbol **) bfd_alloc (output_bfd, |
2411 | get_symtab_upper_bound (input_bfd)); | |
2412 | if (symbols == (asymbol **) NULL) | |
2413 | { | |
2414 | bfd_error = no_memory; | |
2415 | return false; | |
2416 | } | |
2417 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2418 | ||
c3fe0c41 ILT |
2419 | /* Handle the local symbols. Any external symbols are handled |
2420 | separately. */ | |
8fa0d3a0 ILT |
2421 | fdr.csym = 0; |
2422 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2423 | { | |
2424 | SYMR internal_sym; | |
2425 | ||
2426 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) | |
2427 | continue; | |
2428 | memset (&internal_sym, 0, sizeof internal_sym); | |
2429 | internal_sym.iss = ecoff_add_string (output_bfd, | |
2430 | &fdr, | |
2431 | (*sym_ptr)->name, | |
2432 | false); | |
5e462ed9 ILT |
2433 | |
2434 | if (bfd_is_com_section ((*sym_ptr)->section) | |
2435 | || (*sym_ptr)->section == &bfd_und_section) | |
2436 | internal_sym.value = (*sym_ptr)->value; | |
2437 | else | |
2438 | internal_sym.value = ((*sym_ptr)->value | |
2439 | + (*sym_ptr)->section->output_offset | |
2440 | + (*sym_ptr)->section->output_section->vma); | |
8fa0d3a0 ILT |
2441 | internal_sym.st = stNil; |
2442 | internal_sym.sc = scUndefined; | |
2443 | internal_sym.index = indexNil; | |
2444 | ecoff_swap_sym_out (output_bfd, &internal_sym, | |
2445 | (output_ecoff->external_sym | |
2446 | + output_symhdr->isymMax)); | |
2447 | ++fdr.csym; | |
2448 | ++output_symhdr->isymMax; | |
2449 | } | |
2450 | ||
8fa0d3a0 ILT |
2451 | bfd_release (output_bfd, (PTR) symbols); |
2452 | ||
c3fe0c41 ILT |
2453 | /* Leave everything else in the FDR zeroed out. This will cause |
2454 | the lang field to be langC. The fBigendian field will | |
2455 | indicate little endian format, but it doesn't matter because | |
2456 | it only applies to aux fields and there are none. */ | |
8fa0d3a0 ILT |
2457 | |
2458 | ecoff_swap_fdr_out (output_bfd, &fdr, | |
2459 | (output_ecoff->external_fdr | |
2460 | + output_symhdr->ifdMax)); | |
2461 | ++output_symhdr->ifdMax; | |
2462 | return true; | |
2463 | } | |
2464 | ||
2465 | /* This is an ECOFF BFD. We want to grab the information from | |
2466 | input_bfd and attach it to output_bfd. */ | |
c3fe0c41 ILT |
2467 | count = bfd_get_symcount (input_bfd); |
2468 | if (count == 0) | |
8fa0d3a0 ILT |
2469 | return true; |
2470 | input_ecoff = ecoff_data (input_bfd); | |
2471 | input_symhdr = &input_ecoff->symbolic_header; | |
2472 | ||
c3fe0c41 ILT |
2473 | /* I think that it is more efficient to simply copy the debugging |
2474 | information from the input BFD to the output BFD. Because ECOFF | |
2475 | uses relative pointers for most of the debugging information, | |
2476 | only a little of it has to be changed at all. */ | |
2477 | ||
2478 | /* Swap in the local symbols, adjust their values, and swap them out | |
2479 | again. The external symbols are handled separately. */ | |
2480 | sym_out = output_ecoff->external_sym + output_symhdr->isymMax; | |
2481 | ||
2482 | esym_ptr = ecoff_data (input_bfd)->canonical_symbols; | |
2483 | esym_end = esym_ptr + count; | |
2484 | for (; esym_ptr < esym_end; esym_ptr++) | |
2485 | { | |
2486 | if (esym_ptr->local) | |
2487 | { | |
2488 | SYMR sym; | |
2489 | ||
2490 | ecoff_swap_sym_in (input_bfd, esym_ptr->native.lnative, &sym); | |
5e462ed9 ILT |
2491 | |
2492 | /* If we're producing an executable, move common symbols | |
2493 | into bss. */ | |
2494 | if (relocateable == false) | |
2495 | { | |
2496 | if (sym.sc == scCommon) | |
2497 | sym.sc = scBss; | |
2498 | else if (sym.sc == scSCommon) | |
2499 | sym.sc = scSBss; | |
2500 | } | |
2501 | ||
382f2a3d | 2502 | if (! bfd_is_com_section (esym_ptr->symbol.section) |
c3fe0c41 ILT |
2503 | && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0 |
2504 | && esym_ptr->symbol.section != &bfd_und_section) | |
2505 | sym.value = (esym_ptr->symbol.value | |
2506 | + esym_ptr->symbol.section->output_offset | |
2507 | + esym_ptr->symbol.section->output_section->vma); | |
2508 | ecoff_swap_sym_out (output_bfd, &sym, sym_out); | |
2509 | ++sym_out; | |
2510 | } | |
2511 | } | |
2512 | ||
2513 | /* That should have accounted for all the local symbols in | |
2514 | input_bfd. */ | |
2515 | BFD_ASSERT ((sym_out - output_ecoff->external_sym) - output_symhdr->isymMax | |
2516 | == input_symhdr->isymMax); | |
2517 | ||
2518 | /* Copy the information that does not need swapping. */ | |
2519 | memcpy (output_ecoff->line + output_symhdr->cbLine, | |
8fa0d3a0 ILT |
2520 | input_ecoff->line, |
2521 | input_symhdr->cbLine * sizeof (unsigned char)); | |
2522 | memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, | |
2523 | input_ecoff->external_aux, | |
2524 | input_symhdr->iauxMax * sizeof (union aux_ext)); | |
2525 | memcpy (output_ecoff->ss + output_symhdr->issMax, | |
2526 | input_ecoff->ss, | |
2527 | input_symhdr->issMax * sizeof (char)); | |
8fa0d3a0 ILT |
2528 | |
2529 | /* Some of the information may need to be swapped. */ | |
c3fe0c41 ILT |
2530 | if (output_bfd->xvec->header_byteorder_big_p |
2531 | == input_bfd->xvec->header_byteorder_big_p) | |
8fa0d3a0 ILT |
2532 | { |
2533 | /* The two BFD's have the same endianness, so memcpy will | |
2534 | suffice. */ | |
2535 | memcpy (output_ecoff->external_dnr + output_symhdr->idnMax, | |
2536 | input_ecoff->external_dnr, | |
2537 | input_symhdr->idnMax * sizeof (struct dnr_ext)); | |
2538 | memcpy (output_ecoff->external_pdr + output_symhdr->ipdMax, | |
2539 | input_ecoff->external_pdr, | |
2540 | input_symhdr->ipdMax * sizeof (struct pdr_ext)); | |
8fa0d3a0 ILT |
2541 | memcpy (output_ecoff->external_opt + output_symhdr->ioptMax, |
2542 | input_ecoff->external_opt, | |
2543 | input_symhdr->ioptMax * sizeof (struct opt_ext)); | |
2544 | } | |
2545 | else | |
2546 | { | |
2547 | struct dnr_ext *dnr_in; | |
2548 | struct dnr_ext *dnr_end; | |
2549 | struct dnr_ext *dnr_out; | |
2550 | struct pdr_ext *pdr_in; | |
2551 | struct pdr_ext *pdr_end; | |
2552 | struct pdr_ext *pdr_out; | |
8fa0d3a0 ILT |
2553 | struct opt_ext *opt_in; |
2554 | struct opt_ext *opt_end; | |
2555 | struct opt_ext *opt_out; | |
2556 | ||
2557 | /* The two BFD's have different endianness, so we must swap | |
2558 | everything in and out. This code would always work, but it | |
c3fe0c41 | 2559 | would be slow in the normal case. */ |
8fa0d3a0 ILT |
2560 | dnr_in = input_ecoff->external_dnr; |
2561 | dnr_end = dnr_in + input_symhdr->idnMax; | |
2562 | dnr_out = output_ecoff->external_dnr + output_symhdr->idnMax; | |
2563 | for (; dnr_in < dnr_end; dnr_in++, dnr_out++) | |
2564 | { | |
2565 | DNR dnr; | |
2566 | ||
2567 | ecoff_swap_dnr_in (input_bfd, dnr_in, &dnr); | |
2568 | ecoff_swap_dnr_out (output_bfd, &dnr, dnr_out); | |
2569 | } | |
2570 | pdr_in = input_ecoff->external_pdr; | |
2571 | pdr_end = pdr_in + input_symhdr->ipdMax; | |
2572 | pdr_out = output_ecoff->external_pdr + output_symhdr->ipdMax; | |
2573 | for (; pdr_in < pdr_end; pdr_in++, pdr_out++) | |
2574 | { | |
2575 | PDR pdr; | |
2576 | ||
2577 | ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr); | |
2578 | ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out); | |
2579 | } | |
8fa0d3a0 ILT |
2580 | opt_in = input_ecoff->external_opt; |
2581 | opt_end = opt_in + input_symhdr->ioptMax; | |
2582 | opt_out = output_ecoff->external_opt + output_symhdr->ioptMax; | |
2583 | for (; opt_in < opt_end; opt_in++, opt_out++) | |
2584 | { | |
2585 | OPTR opt; | |
2586 | ||
2587 | ecoff_swap_opt_in (input_bfd, opt_in, &opt); | |
2588 | ecoff_swap_opt_out (output_bfd, &opt, opt_out); | |
2589 | } | |
2590 | } | |
2591 | ||
c3fe0c41 ILT |
2592 | /* Set ifdbase so that the external symbols know how to adjust their |
2593 | ifd values. */ | |
2594 | input_ecoff->ifdbase = output_symhdr->ifdMax; | |
2595 | ||
8fa0d3a0 ILT |
2596 | fdr_ptr = input_ecoff->fdr; |
2597 | fdr_end = fdr_ptr + input_symhdr->ifdMax; | |
2598 | fdr_out = output_ecoff->external_fdr + output_symhdr->ifdMax; | |
2599 | for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out++) | |
2600 | { | |
2601 | FDR fdr; | |
2602 | ||
2603 | fdr = *fdr_ptr; | |
2604 | ||
2605 | /* The memory address for this fdr is the address for the seclet | |
2606 | plus the offset to this fdr within input_bfd. */ | |
2607 | fdr.adr = (bfd_get_section_vma (output_bfd, section) | |
2608 | + seclet->offset | |
2609 | + (fdr_ptr->adr - input_ecoff->fdr->adr)); | |
2610 | ||
bf4b84bc ILT |
2611 | fdr.issBase += output_symhdr->issMax; |
2612 | fdr.isymBase += output_symhdr->isymMax; | |
2613 | fdr.ilineBase += output_symhdr->ilineMax; | |
2614 | fdr.ioptBase += output_symhdr->ioptMax; | |
2615 | fdr.ipdFirst += output_symhdr->ipdMax; | |
2616 | fdr.iauxBase += output_symhdr->iauxMax; | |
2617 | fdr.rfdBase += output_symhdr->crfd; | |
c3fe0c41 ILT |
2618 | |
2619 | /* If there are no RFD's, we are going to add some. We don't | |
2620 | want to adjust irfd for this, so that all the FDR's can share | |
2621 | the RFD's. */ | |
2622 | if (input_symhdr->crfd == 0) | |
2623 | fdr.crfd = input_symhdr->ifdMax; | |
2624 | ||
2625 | if (fdr.cbLine != 0) | |
bf4b84bc | 2626 | fdr.cbLineOffset += output_symhdr->cbLine; |
8fa0d3a0 ILT |
2627 | |
2628 | ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out); | |
2629 | } | |
2630 | ||
2631 | if (input_symhdr->crfd > 0) | |
2632 | { | |
2633 | struct rfd_ext *rfd_in; | |
2634 | struct rfd_ext *rfd_end; | |
2635 | struct rfd_ext *rfd_out; | |
2636 | ||
2637 | /* Swap and adjust the RFD's. RFD's are only created by the | |
2638 | linker, so this will only be necessary if one of the input | |
2639 | files is the result of a partial link. Presumably all | |
2640 | necessary RFD's are present. */ | |
2641 | rfd_in = input_ecoff->external_rfd; | |
2642 | rfd_end = rfd_in + input_symhdr->crfd; | |
2643 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2644 | for (; rfd_in < rfd_end; rfd_in++, rfd_out++) | |
2645 | { | |
2646 | RFDT rfd; | |
2647 | ||
2648 | ecoff_swap_rfd_in (input_bfd, rfd_in, &rfd); | |
2649 | rfd += output_symhdr->ifdMax; | |
2650 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2651 | } | |
2652 | output_symhdr->crfd += input_symhdr->crfd; | |
2653 | } | |
2654 | else | |
2655 | { | |
2656 | struct rfd_ext *rfd_out; | |
2657 | struct rfd_ext *rfd_end; | |
2658 | RFDT rfd; | |
2659 | ||
2660 | /* Create RFD's. Some of the debugging information includes | |
2661 | relative file indices. These indices are taken as indices to | |
2662 | the RFD table if there is one, or to the global table if | |
2663 | there is not. If we did not create RFD's, we would have to | |
2664 | parse and adjust all the debugging information which contains | |
2665 | file indices. */ | |
2666 | rfd = output_symhdr->ifdMax; | |
2667 | rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; | |
2668 | rfd_end = rfd_out + input_symhdr->ifdMax; | |
2669 | for (; rfd_out < rfd_end; rfd_out++, rfd++) | |
2670 | ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); | |
2671 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2672 | } | |
2673 | ||
c3fe0c41 ILT |
2674 | /* Combine the register masks. */ |
2675 | { | |
2676 | int i; | |
8fa0d3a0 | 2677 | |
c3fe0c41 | 2678 | output_ecoff->gprmask |= input_ecoff->gprmask; |
5e462ed9 | 2679 | for (i = 0; i < 4; i++) |
c3fe0c41 ILT |
2680 | output_ecoff->cprmask[i] |= input_ecoff->cprmask[i]; |
2681 | } | |
8fa0d3a0 ILT |
2682 | |
2683 | /* Update the counts. */ | |
2684 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2685 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2686 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2687 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2688 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2689 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2690 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2691 | output_symhdr->issMax += input_symhdr->issMax; | |
8fa0d3a0 | 2692 | output_symhdr->ifdMax += input_symhdr->ifdMax; |
8fa0d3a0 | 2693 | |
8fa0d3a0 ILT |
2694 | return true; |
2695 | } | |
2696 | ||
2697 | /* This is the actual link routine. It makes two passes over all the | |
2698 | seclets. */ | |
2699 | ||
2700 | static boolean | |
2701 | DEFUN (ecoff_bfd_seclet_link, (abfd, data, relocateable), | |
2702 | bfd *abfd AND | |
2703 | PTR data AND | |
2704 | boolean relocateable) | |
2705 | { | |
2706 | HDRR *symhdr; | |
2707 | int ipass; | |
2708 | register asection *o; | |
2709 | register bfd_seclet_type *p; | |
c3fe0c41 | 2710 | asymbol **sym_ptr_ptr; |
8fa0d3a0 ILT |
2711 | bfd_size_type size; |
2712 | char *raw; | |
2713 | ||
2714 | /* We accumulate the debugging information counts in the symbolic | |
2715 | header. */ | |
2716 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
c3fe0c41 ILT |
2717 | symhdr->magic = magicSym; |
2718 | /* FIXME: What should the version stamp be? */ | |
2719 | symhdr->vstamp = 0; | |
8fa0d3a0 ILT |
2720 | symhdr->ilineMax = 0; |
2721 | symhdr->cbLine = 0; | |
2722 | symhdr->idnMax = 0; | |
2723 | symhdr->ipdMax = 0; | |
2724 | symhdr->isymMax = 0; | |
2725 | symhdr->ioptMax = 0; | |
2726 | symhdr->iauxMax = 0; | |
2727 | symhdr->issMax = 0; | |
2728 | symhdr->issExtMax = 0; | |
2729 | symhdr->ifdMax = 0; | |
2730 | symhdr->crfd = 0; | |
2731 | symhdr->iextMax = 0; | |
2732 | ||
c3fe0c41 ILT |
2733 | /* We need to copy over the debugging symbols from each input BFD. |
2734 | When we do this copying, we have to adjust the text address in | |
2735 | the FDR structures, so we have to know the text address used for | |
2736 | the input BFD. Since we only want to copy the symbols once per | |
2737 | input BFD, but we are going to look at each input BFD multiple | |
2738 | times (once for each section it provides), we arrange to always | |
2739 | look at the text section first. That means that when we copy the | |
2740 | debugging information, we always know the text address. So we | |
2741 | actually do each pass in two sub passes; first the text sections, | |
2742 | then the non-text sections. We use the output_has_begun flag to | |
2743 | determine whether we have copied over the debugging information | |
2744 | yet. */ | |
8fa0d3a0 ILT |
2745 | |
2746 | /* Do the first pass: set the output section contents and count the | |
2747 | debugging information. */ | |
2748 | ecoff_clear_output_flags (abfd); | |
2749 | for (ipass = 0; ipass < 2; ipass++) | |
2750 | { | |
2751 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2752 | { | |
2753 | /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, | |
2754 | so they are done on pass 0. For other sections the | |
2755 | expression is true, so they are done on pass 1. */ | |
2756 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2757 | continue; | |
2758 | ||
2759 | for (p = o->seclets_head; | |
2760 | p != (bfd_seclet_type *) NULL; | |
2761 | p = p->next) | |
2762 | { | |
2763 | if (ecoff_dump_seclet (abfd, p, o, data, relocateable) | |
2764 | == false) | |
2765 | return false; | |
2766 | } | |
2767 | } | |
2768 | } | |
2769 | ||
c3fe0c41 ILT |
2770 | /* We handle the external symbols differently. We use the ones |
2771 | attached to the output_bfd. The linker will have already | |
2772 | determined which symbols are to be attached. Here we just | |
2773 | determine how much space we will need for them. */ | |
2774 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2775 | if (sym_ptr_ptr != NULL) | |
2776 | { | |
2777 | asymbol **sym_end; | |
2778 | ||
2779 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
2780 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
2781 | { | |
2782 | if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0 | |
2783 | && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0) | |
2784 | { | |
2785 | ++symhdr->iextMax; | |
2786 | symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1; | |
2787 | } | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | /* Adjust the counts so that structures are longword aligned. */ | |
2792 | symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; | |
2793 | symhdr->issMax = (symhdr->issMax + 3) &~ 3; | |
2794 | symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; | |
2795 | ||
8fa0d3a0 ILT |
2796 | /* Now the counts in symhdr are the correct size for the debugging |
2797 | information. We allocate the right amount of space, and reset | |
2798 | the counts so that the second pass can use them as indices. It | |
2799 | would be possible to output the debugging information directly to | |
2800 | the file in pass 2, rather than to build it in memory and then | |
2801 | write it out. Outputting to the file would require a lot of | |
2802 | seeks and small writes, though, and I think this approach is | |
2803 | faster. */ | |
2804 | size = (symhdr->cbLine * sizeof (unsigned char) | |
2805 | + symhdr->idnMax * sizeof (struct dnr_ext) | |
2806 | + symhdr->ipdMax * sizeof (struct pdr_ext) | |
2807 | + symhdr->isymMax * sizeof (struct sym_ext) | |
2808 | + symhdr->ioptMax * sizeof (struct opt_ext) | |
2809 | + symhdr->iauxMax * sizeof (union aux_ext) | |
2810 | + symhdr->issMax * sizeof (char) | |
2811 | + symhdr->issExtMax * sizeof (char) | |
2812 | + symhdr->ifdMax * sizeof (struct fdr_ext) | |
2813 | + symhdr->crfd * sizeof (struct rfd_ext) | |
2814 | + symhdr->iextMax * sizeof (struct ext_ext)); | |
2815 | raw = (char *) bfd_alloc (abfd, size); | |
2816 | if (raw == (char *) NULL) | |
2817 | { | |
2818 | bfd_error = no_memory; | |
2819 | return false; | |
2820 | } | |
2821 | ecoff_data (abfd)->raw_size = size; | |
2822 | ecoff_data (abfd)->raw_syments = (PTR) raw; | |
2823 | ||
2824 | /* Initialize the raw pointers. */ | |
2825 | #define SET(field, count, type) \ | |
2826 | ecoff_data (abfd)->field = (type *) raw; \ | |
2827 | raw += symhdr->count * sizeof (type) | |
2828 | ||
2829 | SET (line, cbLine, unsigned char); | |
2830 | SET (external_dnr, idnMax, struct dnr_ext); | |
2831 | SET (external_pdr, ipdMax, struct pdr_ext); | |
2832 | SET (external_sym, isymMax, struct sym_ext); | |
2833 | SET (external_opt, ioptMax, struct opt_ext); | |
2834 | SET (external_aux, iauxMax, union aux_ext); | |
2835 | SET (ss, issMax, char); | |
2836 | SET (ssext, issExtMax, char); | |
2837 | SET (external_fdr, ifdMax, struct fdr_ext); | |
2838 | SET (external_rfd, crfd, struct rfd_ext); | |
2839 | SET (external_ext, iextMax, struct ext_ext); | |
2840 | #undef SET | |
2841 | ||
2842 | /* Reset the counts so the second pass can use them to know how far | |
2843 | it has gotten. */ | |
2844 | symhdr->ilineMax = 0; | |
2845 | symhdr->cbLine = 0; | |
2846 | symhdr->idnMax = 0; | |
2847 | symhdr->ipdMax = 0; | |
2848 | symhdr->isymMax = 0; | |
2849 | symhdr->ioptMax = 0; | |
2850 | symhdr->iauxMax = 0; | |
2851 | symhdr->issMax = 0; | |
2852 | symhdr->issExtMax = 0; | |
2853 | symhdr->ifdMax = 0; | |
2854 | symhdr->crfd = 0; | |
2855 | symhdr->iextMax = 0; | |
2856 | ||
2857 | /* Do the second pass: accumulate the debugging information. */ | |
2858 | ecoff_clear_output_flags (abfd); | |
2859 | for (ipass = 0; ipass < 2; ipass++) | |
2860 | { | |
2861 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2862 | { | |
2863 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2864 | continue; | |
2865 | for (p = o->seclets_head; | |
2866 | p != (bfd_seclet_type *) NULL; | |
2867 | p = p->next) | |
2868 | { | |
2869 | if (p->type == bfd_indirect_seclet) | |
2870 | { | |
5e462ed9 | 2871 | if (ecoff_get_debug (abfd, p, o, relocateable) == false) |
8fa0d3a0 ILT |
2872 | return false; |
2873 | } | |
2874 | } | |
2875 | } | |
2876 | } | |
2877 | ||
c3fe0c41 ILT |
2878 | /* Put in the external symbols. */ |
2879 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2880 | if (sym_ptr_ptr != NULL) | |
2881 | { | |
2882 | char *ssext; | |
2883 | struct ext_ext *external_ext; | |
2884 | ||
2885 | ssext = ecoff_data (abfd)->ssext; | |
2886 | external_ext = ecoff_data (abfd)->external_ext; | |
2887 | for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++) | |
2888 | { | |
2889 | asymbol *sym_ptr; | |
2890 | EXTR esym; | |
2891 | ||
2892 | sym_ptr = *sym_ptr_ptr; | |
2893 | ||
2894 | if ((sym_ptr->flags & BSF_DEBUGGING) != 0 | |
2895 | || (sym_ptr->flags & BSF_LOCAL) != 0) | |
2896 | continue; | |
2897 | ||
2898 | /* The enative pointer can be NULL for a symbol created by | |
2899 | the linker via ecoff_make_empty_symbol. */ | |
2900 | if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour | |
2901 | || (((ecoff_symbol_type *) sym_ptr)->native.enative | |
2902 | == (struct ext_ext *) NULL)) | |
2903 | { | |
2904 | esym.jmptbl = 0; | |
2905 | esym.cobol_main = 0; | |
2906 | esym.weakext = 0; | |
2907 | esym.reserved = 0; | |
2908 | esym.ifd = ifdNil; | |
2909 | /* FIXME: we can do better than this for st and sc. */ | |
2910 | esym.asym.st = stGlobal; | |
2911 | esym.asym.sc = scAbs; | |
2912 | esym.asym.reserved = 0; | |
2913 | esym.asym.index = indexNil; | |
2914 | } | |
2915 | else | |
2916 | { | |
2917 | ecoff_symbol_type *ecoff_sym_ptr; | |
2918 | ||
2919 | ecoff_sym_ptr = (ecoff_symbol_type *) sym_ptr; | |
2920 | if (ecoff_sym_ptr->local) | |
2921 | abort (); | |
2922 | ecoff_swap_ext_in (abfd, ecoff_sym_ptr->native.enative, &esym); | |
2923 | ||
5e462ed9 ILT |
2924 | /* If we're producing an executable, move common symbols |
2925 | into bss. */ | |
2926 | if (relocateable == false) | |
2927 | { | |
2928 | if (esym.asym.sc == scCommon) | |
2929 | esym.asym.sc = scBss; | |
2930 | else if (esym.asym.sc == scSCommon) | |
2931 | esym.asym.sc = scSBss; | |
2932 | } | |
2933 | ||
c3fe0c41 ILT |
2934 | /* Adjust the FDR index for the symbol by that used for |
2935 | the input BFD. */ | |
2936 | esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase; | |
2937 | } | |
2938 | ||
2939 | esym.asym.iss = symhdr->issExtMax; | |
2940 | ||
382f2a3d | 2941 | if (bfd_is_com_section (sym_ptr->section) |
c3fe0c41 ILT |
2942 | || sym_ptr->section == &bfd_und_section) |
2943 | esym.asym.value = sym_ptr->value; | |
2944 | else | |
2945 | esym.asym.value = (sym_ptr->value | |
2946 | + sym_ptr->section->output_offset | |
2947 | + sym_ptr->section->output_section->vma); | |
2948 | ||
2949 | ecoff_swap_ext_out (abfd, &esym, external_ext + symhdr->iextMax); | |
2950 | ||
2951 | ecoff_set_sym_index (sym_ptr, symhdr->iextMax); | |
2952 | ||
2953 | ++symhdr->iextMax; | |
2954 | ||
2955 | strcpy (ssext + symhdr->issExtMax, sym_ptr->name); | |
2956 | symhdr->issExtMax += strlen (sym_ptr->name) + 1; | |
2957 | } | |
2958 | } | |
2959 | ||
2960 | /* Adjust the counts so that structures are longword aligned. */ | |
2961 | symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; | |
2962 | symhdr->issMax = (symhdr->issMax + 3) &~ 3; | |
2963 | symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; | |
2964 | ||
8fa0d3a0 ILT |
2965 | return true; |
2966 | } | |
2967 | \f | |
2968 | /* Set the architecture. The only architecture we support here is | |
2969 | mips. We set the architecture anyhow, since many callers ignore | |
2970 | the return value. */ | |
2971 | ||
2972 | static boolean | |
2973 | DEFUN (ecoff_set_arch_mach, (abfd, arch, machine), | |
2974 | bfd *abfd AND | |
2975 | enum bfd_architecture arch AND | |
2976 | unsigned long machine) | |
2977 | { | |
2978 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2979 | return arch == bfd_arch_mips; | |
2980 | } | |
2981 | ||
5e462ed9 ILT |
2982 | /* Get the size of the section headers. We do not output the .scommon |
2983 | section which we created in ecoff_mkobject. */ | |
2984 | ||
2985 | static int | |
2986 | ecoff_sizeof_headers (abfd, reloc) | |
2987 | bfd *abfd; | |
2988 | boolean reloc; | |
2989 | { | |
2990 | return FILHSZ + AOUTSZ + (abfd->section_count - 1) * SCNHSZ; | |
2991 | } | |
2992 | ||
8fa0d3a0 ILT |
2993 | /* Calculate the file position for each section, and set |
2994 | reloc_filepos. */ | |
2995 | ||
2996 | static void | |
2997 | DEFUN (ecoff_compute_section_file_positions, (abfd), | |
2998 | bfd *abfd) | |
2999 | { | |
3000 | asection *current; | |
8fa0d3a0 ILT |
3001 | file_ptr sofar; |
3002 | file_ptr old_sofar; | |
c3fe0c41 | 3003 | boolean first_data; |
8fa0d3a0 | 3004 | |
8fa0d3a0 | 3005 | if (bfd_get_start_address (abfd)) |
c3fe0c41 | 3006 | abfd->flags |= EXEC_P; |
8fa0d3a0 | 3007 | |
5e462ed9 | 3008 | sofar = ecoff_sizeof_headers (abfd, false); |
8fa0d3a0 | 3009 | |
c3fe0c41 | 3010 | first_data = true; |
8fa0d3a0 ILT |
3011 | for (current = abfd->sections; |
3012 | current != (asection *) NULL; | |
3013 | current = current->next) | |
3014 | { | |
3015 | /* Only deal with sections which have contents */ | |
5e462ed9 ILT |
3016 | if (! (current->flags & SEC_HAS_CONTENTS) |
3017 | || strcmp (current->name, SCOMMON) == 0) | |
8fa0d3a0 ILT |
3018 | continue; |
3019 | ||
c3fe0c41 ILT |
3020 | /* On Ultrix, the data sections in an executable file must be |
3021 | aligned to a page boundary within the file. This does not | |
3022 | affect the section size, though. FIXME: Does this work for | |
3023 | other platforms? */ | |
3024 | if ((abfd->flags & EXEC_P) != 0 | |
3025 | && first_data != false | |
3026 | && (current->flags & SEC_CODE) == 0) | |
3027 | { | |
3028 | sofar = (sofar + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3029 | first_data = false; | |
3030 | } | |
3031 | ||
8fa0d3a0 ILT |
3032 | /* Align the sections in the file to the same boundary on |
3033 | which they are aligned in virtual memory. */ | |
3034 | old_sofar = sofar; | |
3035 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
8fa0d3a0 ILT |
3036 | |
3037 | current->filepos = sofar; | |
3038 | ||
3039 | sofar += current->_raw_size; | |
3040 | ||
3041 | /* make sure that this section is of the right size too */ | |
3042 | old_sofar = sofar; | |
3043 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3044 | current->_raw_size += sofar - old_sofar; | |
8fa0d3a0 ILT |
3045 | } |
3046 | ||
3047 | ecoff_data (abfd)->reloc_filepos = sofar; | |
3048 | } | |
3049 | ||
3050 | /* Set the contents of a section. */ | |
3051 | ||
3052 | static boolean | |
3053 | DEFUN (ecoff_set_section_contents, (abfd, section, location, offset, count), | |
3054 | bfd *abfd AND | |
b6bef862 | 3055 | asection *section AND |
8fa0d3a0 ILT |
3056 | PTR location AND |
3057 | file_ptr offset AND | |
3058 | bfd_size_type count) | |
3059 | { | |
3060 | if (abfd->output_has_begun == false) | |
3061 | ecoff_compute_section_file_positions (abfd); | |
3062 | ||
3063 | bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); | |
3064 | ||
3065 | if (count != 0) | |
3066 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
3067 | ||
3068 | return true; | |
3069 | } | |
3070 | ||
3071 | /* Write out an ECOFF file. */ | |
3072 | ||
3073 | static boolean | |
3074 | DEFUN (ecoff_write_object_contents, (abfd), | |
3075 | bfd *abfd) | |
3076 | { | |
3077 | asection *current; | |
3078 | unsigned int count; | |
3079 | file_ptr scn_base; | |
3080 | file_ptr reloc_base; | |
3081 | file_ptr sym_base; | |
3082 | unsigned long reloc_size; | |
3083 | unsigned long text_size; | |
3084 | unsigned long text_start; | |
3085 | unsigned long data_size; | |
3086 | unsigned long data_start; | |
3087 | unsigned long bss_size; | |
3088 | struct internal_filehdr internal_f; | |
3089 | struct internal_aouthdr internal_a; | |
c3fe0c41 | 3090 | int i; |
8fa0d3a0 ILT |
3091 | |
3092 | bfd_error = system_call_error; | |
3093 | ||
3094 | if(abfd->output_has_begun == false) | |
3095 | ecoff_compute_section_file_positions(abfd); | |
3096 | ||
3097 | if (abfd->sections != (asection *) NULL) | |
3098 | scn_base = abfd->sections->filepos; | |
3099 | else | |
3100 | scn_base = 0; | |
3101 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
3102 | ||
3103 | count = 1; | |
3104 | reloc_size = 0; | |
3105 | for (current = abfd->sections; | |
3106 | current != (asection *)NULL; | |
3107 | current = current->next) | |
3108 | { | |
5e462ed9 ILT |
3109 | if (strcmp (current->name, SCOMMON) == 0) |
3110 | continue; | |
8fa0d3a0 ILT |
3111 | current->target_index = count; |
3112 | ++count; | |
3113 | if (current->reloc_count != 0) | |
3114 | { | |
3115 | bfd_size_type relsize; | |
3116 | ||
3117 | current->rel_filepos = reloc_base; | |
3118 | relsize = current->reloc_count * RELSZ; | |
3119 | reloc_size += relsize; | |
3120 | reloc_base += relsize; | |
3121 | } | |
3122 | else | |
3123 | current->rel_filepos = 0; | |
3124 | } | |
3125 | ||
3126 | sym_base = reloc_base + reloc_size; | |
c3fe0c41 ILT |
3127 | |
3128 | /* At least on Ultrix, the symbol table of an executable file must | |
3129 | be aligned to a page boundary. FIXME: Is this true on other | |
3130 | platforms? */ | |
3131 | if ((abfd->flags & EXEC_P) != 0) | |
3132 | sym_base = (sym_base + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3133 | ||
8fa0d3a0 ILT |
3134 | ecoff_data (abfd)->sym_filepos = sym_base; |
3135 | ||
5e462ed9 | 3136 | text_size = ecoff_sizeof_headers (abfd, false); |
8fa0d3a0 ILT |
3137 | text_start = 0; |
3138 | data_size = 0; | |
3139 | data_start = 0; | |
3140 | bss_size = 0; | |
3141 | ||
3142 | /* Write section headers to the file. */ | |
3143 | ||
3144 | internal_f.f_nscns = 0; | |
c3fe0c41 | 3145 | if (bfd_seek (abfd, (file_ptr) (FILHSZ + AOUTSZ), SEEK_SET) != 0) |
8fa0d3a0 ILT |
3146 | return false; |
3147 | for (current = abfd->sections; | |
3148 | current != (asection *) NULL; | |
3149 | current = current->next) | |
3150 | { | |
3151 | struct internal_scnhdr section; | |
3152 | bfd_vma vma; | |
3153 | ||
5e462ed9 ILT |
3154 | if (strcmp (current->name, SCOMMON) == 0) |
3155 | { | |
3156 | BFD_ASSERT (bfd_get_section_size_before_reloc (current) == 0 | |
3157 | && current->reloc_count == 0); | |
3158 | continue; | |
3159 | } | |
3160 | ||
8fa0d3a0 ILT |
3161 | ++internal_f.f_nscns; |
3162 | ||
3163 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
3164 | ||
3165 | /* FIXME: is this correct for shared libraries? I think it is | |
3166 | but I have no platform to check. Ian Lance Taylor. */ | |
3167 | vma = bfd_get_section_vma (abfd, current); | |
3168 | if (strcmp (current->name, _LIB) == 0) | |
3169 | section.s_vaddr = 0; | |
3170 | else | |
3171 | section.s_vaddr = vma; | |
3172 | ||
3173 | section.s_paddr = vma; | |
3174 | section.s_size = bfd_get_section_size_before_reloc (current); | |
3175 | ||
3176 | /* If this section has no size or is unloadable then the scnptr | |
3177 | will be 0 too. */ | |
3178 | if (current->_raw_size == 0 | |
3179 | || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
3180 | section.s_scnptr = 0; | |
3181 | else | |
3182 | section.s_scnptr = current->filepos; | |
3183 | section.s_relptr = current->rel_filepos; | |
3184 | ||
3185 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
3186 | object file produced by the assembler is supposed to point to | |
3187 | information about how much room is required by objects of | |
3188 | various different sizes. I think this only matters if we | |
3189 | want the linker to compute the best size to use, or | |
3190 | something. I don't know what happens if the information is | |
3191 | not present. */ | |
3192 | section.s_lnnoptr = 0; | |
3193 | ||
3194 | section.s_nreloc = current->reloc_count; | |
3195 | section.s_nlnno = 0; | |
3196 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
3197 | ||
3198 | { | |
3199 | SCNHDR buff; | |
3200 | ||
3201 | ecoff_swap_scnhdr_out (abfd, (PTR) §ion, (PTR) &buff); | |
3202 | if (bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) | |
3203 | return false; | |
3204 | } | |
3205 | ||
c3fe0c41 | 3206 | if ((section.s_flags & STYP_TEXT) != 0) |
8fa0d3a0 ILT |
3207 | { |
3208 | text_size += bfd_get_section_size_before_reloc (current); | |
3209 | if (text_start == 0 || text_start > vma) | |
3210 | text_start = vma; | |
3211 | } | |
c3fe0c41 ILT |
3212 | else if ((section.s_flags & STYP_RDATA) != 0 |
3213 | || (section.s_flags & STYP_DATA) != 0 | |
3214 | || (section.s_flags & STYP_LIT8) != 0 | |
3215 | || (section.s_flags & STYP_LIT4) != 0 | |
8fa0d3a0 ILT |
3216 | || (section.s_flags & STYP_SDATA) != 0) |
3217 | { | |
3218 | data_size += bfd_get_section_size_before_reloc (current); | |
3219 | if (data_start == 0 || data_start > vma) | |
3220 | data_start = vma; | |
3221 | } | |
3222 | else if ((section.s_flags & STYP_BSS) != 0 | |
3223 | || (section.s_flags & STYP_SBSS) != 0) | |
3224 | bss_size += bfd_get_section_size_before_reloc (current); | |
3225 | } | |
3226 | ||
3227 | /* Set up the file header. */ | |
3228 | ||
3229 | internal_f.f_magic = MIPS_MAGIC_2; | |
3230 | ||
3231 | /* | |
3232 | We will NOT put a fucking timestamp in the header here. Every time you | |
3233 | put it back, I will come in and take it out again. I'm sorry. This | |
3234 | field does not belong here. We fill it with a 0 so it compares the | |
3235 | same but is not a reasonable time. -- gnu@cygnus.com | |
3236 | */ | |
3237 | internal_f.f_timdat = 0; | |
3238 | ||
c3fe0c41 ILT |
3239 | if (bfd_get_symcount (abfd) != 0) |
3240 | { | |
3241 | /* The ECOFF f_nsyms field is not actually the number of | |
3242 | symbols, it's the size of symbolic information header. */ | |
3243 | internal_f.f_nsyms = sizeof (struct hdr_ext); | |
3244 | internal_f.f_symptr = sym_base; | |
3245 | } | |
8fa0d3a0 | 3246 | else |
c3fe0c41 ILT |
3247 | { |
3248 | internal_f.f_nsyms = 0; | |
3249 | internal_f.f_symptr = 0; | |
3250 | } | |
8fa0d3a0 | 3251 | |
c3fe0c41 | 3252 | internal_f.f_opthdr = AOUTSZ; |
8fa0d3a0 | 3253 | |
c3fe0c41 | 3254 | internal_f.f_flags = F_LNNO; |
8fa0d3a0 ILT |
3255 | if (reloc_size == 0) |
3256 | internal_f.f_flags |= F_RELFLG; | |
3257 | if (bfd_get_symcount (abfd) == 0) | |
3258 | internal_f.f_flags |= F_LSYMS; | |
3259 | if (abfd->flags & EXEC_P) | |
3260 | internal_f.f_flags |= F_EXEC; | |
3261 | ||
3262 | if (! abfd->xvec->byteorder_big_p) | |
3263 | internal_f.f_flags |= F_AR32WR; | |
3264 | else | |
3265 | internal_f.f_flags |= F_AR32W; | |
3266 | ||
c3fe0c41 ILT |
3267 | /* Set up the ``optional'' header. */ |
3268 | internal_a.magic = ZMAGIC; | |
3269 | ||
3270 | /* FIXME: What should this be? */ | |
3271 | internal_a.vstamp = 0; | |
3272 | ||
3273 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
3274 | FIXME: Is this true on other platforms? */ | |
3275 | internal_a.tsize = (text_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3276 | internal_a.text_start = text_start &~ (PAGE_SIZE - 1); | |
3277 | internal_a.dsize = (data_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1); | |
3278 | internal_a.data_start = data_start &~ (PAGE_SIZE - 1); | |
3279 | ||
3280 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
3281 | are at the end of the data section. The bsize field in the | |
3282 | optional header records how many bss bytes are required beyond | |
3283 | those in the data section. The value is not rounded to a page | |
3284 | boundary. */ | |
3285 | if (bss_size < internal_a.dsize - data_size) | |
3286 | bss_size = 0; | |
3287 | else | |
3288 | bss_size -= internal_a.dsize - data_size; | |
3289 | internal_a.bsize = bss_size; | |
3290 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
8fa0d3a0 | 3291 | |
c3fe0c41 | 3292 | internal_a.entry = bfd_get_start_address (abfd); |
8fa0d3a0 | 3293 | |
c3fe0c41 | 3294 | internal_a.gp_value = ecoff_data (abfd)->gp; |
8fa0d3a0 | 3295 | |
c3fe0c41 | 3296 | internal_a.gprmask = ecoff_data (abfd)->gprmask; |
5e462ed9 | 3297 | for (i = 0; i < 4; i++) |
c3fe0c41 | 3298 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; |
8fa0d3a0 ILT |
3299 | |
3300 | /* Write out the file header and the optional header. */ | |
3301 | ||
3302 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
3303 | return false; | |
3304 | ||
3305 | { | |
3306 | FILHDR buff; | |
3307 | ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff); | |
3308 | if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ) | |
3309 | return false; | |
3310 | } | |
3311 | ||
c3fe0c41 ILT |
3312 | { |
3313 | AOUTHDR buff; | |
3314 | ||
3315 | ecoff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); | |
3316 | if (bfd_write ((PTR) &buff, 1, AOUTSZ, abfd) != AOUTSZ) | |
3317 | return false; | |
3318 | } | |
3319 | ||
3320 | /* Write out the relocs. */ | |
3321 | for (current = abfd->sections; | |
3322 | current != (asection *) NULL; | |
3323 | current = current->next) | |
8fa0d3a0 | 3324 | { |
c3fe0c41 ILT |
3325 | RELOC *buff; |
3326 | arelent **reloc_ptr_ptr; | |
3327 | arelent **reloc_end; | |
3328 | RELOC *out_ptr; | |
3329 | ||
3330 | if (current->reloc_count == 0) | |
3331 | continue; | |
8fa0d3a0 | 3332 | |
c3fe0c41 ILT |
3333 | buff = (RELOC *) bfd_alloc (abfd, current->reloc_count * RELSZ); |
3334 | if (buff == (RELOC *) NULL) | |
3335 | { | |
3336 | bfd_error = no_memory; | |
3337 | return false; | |
3338 | } | |
3339 | ||
3340 | reloc_ptr_ptr = current->orelocation; | |
3341 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
3342 | out_ptr = buff; | |
3343 | for (; reloc_ptr_ptr < reloc_end; reloc_ptr_ptr++, out_ptr++) | |
3344 | { | |
3345 | arelent *reloc; | |
3346 | asymbol *sym; | |
3347 | struct internal_reloc in; | |
3348 | ||
3349 | memset (&in, 0, sizeof in); | |
3350 | ||
3351 | reloc = *reloc_ptr_ptr; | |
3352 | sym = *reloc->sym_ptr_ptr; | |
3353 | ||
3354 | in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current); | |
3355 | in.r_type = reloc->howto->type; | |
3356 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
3357 | { | |
3358 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
3359 | in.r_extern = 1; | |
3360 | } | |
3361 | else | |
3362 | { | |
3363 | CONST char *name; | |
3364 | ||
3365 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
3366 | if (strcmp (name, ".text") == 0) | |
3367 | in.r_symndx = RELOC_SECTION_TEXT; | |
3368 | else if (strcmp (name, ".rdata") == 0) | |
3369 | in.r_symndx = RELOC_SECTION_RDATA; | |
3370 | else if (strcmp (name, ".data") == 0) | |
3371 | in.r_symndx = RELOC_SECTION_DATA; | |
3372 | else if (strcmp (name, ".sdata") == 0) | |
3373 | in.r_symndx = RELOC_SECTION_SDATA; | |
3374 | else if (strcmp (name, ".sbss") == 0) | |
3375 | in.r_symndx = RELOC_SECTION_SBSS; | |
3376 | else if (strcmp (name, ".bss") == 0) | |
3377 | in.r_symndx = RELOC_SECTION_BSS; | |
3378 | else if (strcmp (name, ".init") == 0) | |
3379 | in.r_symndx = RELOC_SECTION_INIT; | |
3380 | else if (strcmp (name, ".lit8") == 0) | |
3381 | in.r_symndx = RELOC_SECTION_LIT8; | |
3382 | else if (strcmp (name, ".lit4") == 0) | |
3383 | in.r_symndx = RELOC_SECTION_LIT4; | |
3384 | else | |
3385 | abort (); | |
3386 | in.r_extern = 0; | |
3387 | } | |
3388 | ||
3389 | ecoff_swap_reloc_out (abfd, (PTR) &in, (PTR) out_ptr); | |
3390 | } | |
3391 | ||
3392 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
8fa0d3a0 | 3393 | return false; |
c3fe0c41 ILT |
3394 | if (bfd_write ((PTR) buff, RELSZ, current->reloc_count, abfd) |
3395 | != RELSZ * current->reloc_count) | |
3396 | return false; | |
3397 | bfd_release (abfd, (PTR) buff); | |
8fa0d3a0 ILT |
3398 | } |
3399 | ||
8fa0d3a0 ILT |
3400 | /* Write out the symbolic debugging information. */ |
3401 | if (bfd_get_symcount (abfd) > 0) | |
3402 | { | |
c3fe0c41 ILT |
3403 | HDRR *symhdr; |
3404 | unsigned long sym_offset; | |
8fa0d3a0 ILT |
3405 | struct hdr_ext buff; |
3406 | ||
c3fe0c41 ILT |
3407 | /* Set up the offsets in the symbolic header. */ |
3408 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
3409 | sym_offset = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); | |
3410 | ||
3411 | #define SET(offset, size, ptr) \ | |
3412 | if (symhdr->size == 0) \ | |
3413 | symhdr->offset = 0; \ | |
3414 | else \ | |
3415 | symhdr->offset = (((char *) ecoff_data (abfd)->ptr \ | |
3416 | - (char *) ecoff_data (abfd)->raw_syments) \ | |
3417 | + sym_offset); | |
3418 | ||
3419 | SET (cbLineOffset, cbLine, line); | |
3420 | SET (cbDnOffset, idnMax, external_dnr); | |
3421 | SET (cbPdOffset, ipdMax, external_pdr); | |
3422 | SET (cbSymOffset, isymMax, external_sym); | |
3423 | SET (cbOptOffset, ioptMax, external_opt); | |
3424 | SET (cbAuxOffset, iauxMax, external_aux); | |
3425 | SET (cbSsOffset, issMax, ss); | |
3426 | SET (cbSsExtOffset, issExtMax, ssext); | |
3427 | SET (cbFdOffset, ifdMax, external_fdr); | |
3428 | SET (cbRfdOffset, crfd, external_rfd); | |
3429 | SET (cbExtOffset, iextMax, external_ext); | |
3430 | #undef SET | |
3431 | ||
3432 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos, | |
3433 | SEEK_SET) != 0) | |
3434 | return false; | |
8fa0d3a0 ILT |
3435 | ecoff_swap_hdr_out (abfd, &ecoff_data (abfd)->symbolic_header, &buff); |
3436 | if (bfd_write ((PTR) &buff, 1, sizeof buff, abfd) != sizeof buff) | |
3437 | return false; | |
3438 | if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, | |
3439 | ecoff_data (abfd)->raw_size, abfd) | |
3440 | != ecoff_data (abfd)->raw_size) | |
3441 | return false; | |
3442 | } | |
3443 | ||
3444 | return true; | |
3445 | } | |
3446 | \f | |
c3fe0c41 ILT |
3447 | /* Archive handling. ECOFF uses what appears to be a unique type of |
3448 | archive header (which I call an armap). The byte ordering of the | |
3449 | armap and the contents are encoded in the name of the armap itself. | |
3450 | At least for now, we only support archives with the same byte | |
3451 | ordering in the armap and the contents. | |
3452 | ||
3453 | The first four bytes in the armap are the number of symbol | |
23ba15b7 | 3454 | definitions. This is always a power of two. |
c3fe0c41 ILT |
3455 | |
3456 | This is followed by the symbol definitions. Each symbol definition | |
3457 | occupies 8 bytes. The first four bytes are the offset from the | |
3458 | start of the armap strings to the null-terminated string naming | |
3459 | this symbol. The second four bytes are the file offset to the | |
3460 | archive member which defines this symbol. If the second four bytes | |
3461 | are 0, then this is not actually a symbol definition, and it should | |
3462 | be ignored. | |
3463 | ||
23ba15b7 ILT |
3464 | The symbols are hashed into the armap with a closed hashing scheme. |
3465 | See the functions below for the details of the algorithm. | |
3466 | ||
3467 | We could use the hash table when looking up symbols in a library. | |
3468 | This would require a new BFD target entry point to replace the | |
3469 | bfd_get_next_mapent function used by the linker. | |
3470 | ||
c3fe0c41 ILT |
3471 | After the symbol definitions comes four bytes holding the size of |
3472 | the string table, followed by the string table itself. */ | |
3473 | ||
3474 | /* The name of an archive headers looks like this: | |
23ba15b7 ILT |
3475 | __________E[BL]E[BL]_ (with a trailing space). |
3476 | The trailing space is changed to an X if the archive is changed to | |
3477 | indicate that the armap is out of date. */ | |
c3fe0c41 ILT |
3478 | |
3479 | #define ARMAP_BIG_ENDIAN 'B' | |
3480 | #define ARMAP_LITTLE_ENDIAN 'L' | |
3481 | #define ARMAP_MARKER 'E' | |
3482 | #define ARMAP_START "__________" | |
3483 | #define ARMAP_HEADER_MARKER_INDEX 10 | |
3484 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
3485 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
3486 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
3487 | #define ARMAP_END_INDEX 14 | |
3488 | #define ARMAP_END "_ " | |
3489 | ||
23ba15b7 ILT |
3490 | /* This is a magic number used in the hashing algorithm. */ |
3491 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
3492 | ||
3493 | /* This returns the hash value to use for a string. It also sets | |
3494 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
3495 | is the number of entries in the hash table, and HLOG is the log | |
3496 | base 2 of SIZE. */ | |
3497 | ||
3498 | static unsigned int | |
3499 | ecoff_armap_hash (s, rehash, size, hlog) | |
3500 | CONST char *s; | |
3501 | unsigned int *rehash; | |
3502 | unsigned int size; | |
3503 | unsigned int hlog; | |
3504 | { | |
3505 | unsigned int hash; | |
3506 | ||
3507 | hash = *s++; | |
3508 | while (*s != '\0') | |
3509 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
3510 | hash *= ARMAP_HASH_MAGIC; | |
3511 | *rehash = (hash & (size - 1)) | 1; | |
3512 | return hash >> (32 - hlog); | |
3513 | } | |
3514 | ||
c3fe0c41 ILT |
3515 | /* Read in the armap. */ |
3516 | ||
3517 | static boolean | |
3518 | DEFUN (ecoff_slurp_armap, (abfd), | |
3519 | bfd *abfd) | |
3520 | { | |
3521 | char nextname[17]; | |
3522 | unsigned int i; | |
3523 | struct areltdata *mapdata; | |
3524 | bfd_size_type parsed_size; | |
3525 | char *raw_armap; | |
3526 | struct artdata *ardata; | |
3527 | unsigned int count; | |
3528 | char *raw_ptr; | |
3529 | struct symdef *symdef_ptr; | |
3530 | char *stringbase; | |
3531 | ||
3532 | /* Get the name of the first element. */ | |
3533 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3534 | if (i == 0) | |
3535 | return true; | |
3536 | if (i != 16) | |
3537 | return false; | |
3538 | ||
3539 | bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); | |
3540 | ||
3541 | /* See if the first element is an armap. */ | |
3542 | if (strncmp (nextname, ARMAP_START, sizeof ARMAP_START - 1) != 0 | |
3543 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER | |
3544 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3545 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3546 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3547 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3548 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3549 | || strncmp (nextname + ARMAP_END_INDEX, | |
3550 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3551 | { | |
3552 | bfd_has_map (abfd) = false; | |
3553 | return true; | |
3554 | } | |
3555 | ||
3556 | /* Make sure we have the right byte ordering. */ | |
3557 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3558 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3559 | || ((nextname[ARMAP_OBJECT_MARKER_INDEX] == ARMAP_BIG_ENDIAN) | |
3560 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3561 | { | |
3562 | bfd_error = wrong_format; | |
3563 | return false; | |
3564 | } | |
3565 | ||
3566 | /* Read in the armap. */ | |
3567 | ardata = bfd_ardata (abfd); | |
3568 | mapdata = snarf_ar_hdr (abfd); | |
3569 | if (mapdata == (struct areltdata *) NULL) | |
3570 | return false; | |
3571 | parsed_size = mapdata->parsed_size; | |
3572 | bfd_release (abfd, (PTR) mapdata); | |
3573 | ||
3574 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3575 | if (raw_armap == (char *) NULL) | |
3576 | { | |
3577 | bfd_error = no_memory; | |
3578 | return false; | |
3579 | } | |
3580 | ||
3581 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3582 | { | |
3583 | bfd_error = malformed_archive; | |
3584 | bfd_release (abfd, (PTR) raw_armap); | |
3585 | return false; | |
3586 | } | |
3587 | ||
3588 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); | |
3589 | ||
3590 | ardata->symdef_count = 0; | |
3591 | ardata->cache = (struct ar_cache *) NULL; | |
3592 | ||
3593 | /* Hack: overlay the symdefs on top of the raw archive data. This | |
3594 | is the way do_slurp_bsd_armap works. */ | |
3595 | raw_ptr = raw_armap + LONG_SIZE; | |
3596 | symdef_ptr = (struct symdef *) raw_ptr; | |
3597 | ardata->symdefs = (carsym *) symdef_ptr; | |
3598 | stringbase = raw_ptr + count * (2 * LONG_SIZE) + LONG_SIZE; | |
3599 | ||
23ba15b7 ILT |
3600 | #ifdef CHECK_ARMAP_HASH |
3601 | { | |
3602 | unsigned int hlog; | |
3603 | ||
3604 | /* Double check that I have the hashing algorithm right by making | |
3605 | sure that every symbol can be looked up successfully. */ | |
3606 | hlog = 0; | |
3607 | for (i = 1; i < count; i <<= 1) | |
3608 | hlog++; | |
3609 | BFD_ASSERT (i == count); | |
3610 | ||
3611 | for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) | |
3612 | { | |
3613 | unsigned int name_offset, file_offset; | |
3614 | unsigned int hash, rehash, srch; | |
3615 | ||
3616 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3617 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); | |
3618 | if (file_offset == 0) | |
3619 | continue; | |
3620 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3621 | hlog); | |
3622 | if (hash == i) | |
3623 | continue; | |
3624 | ||
3625 | /* See if we can rehash to this location. */ | |
3626 | for (srch = (hash + rehash) & (count - 1); | |
3627 | srch != hash && srch != i; | |
3628 | srch = (srch + rehash) & (count - 1)) | |
3629 | BFD_ASSERT (bfd_h_get_32 (abfd, | |
3630 | (PTR) (raw_armap | |
3631 | + LONG_SIZE | |
3632 | + (srch * 2 * LONG_SIZE) | |
3633 | + LONG_SIZE)) | |
3634 | != 0); | |
3635 | BFD_ASSERT (srch == i); | |
3636 | } | |
3637 | } | |
3638 | ||
3639 | raw_ptr = raw_armap + LONG_SIZE; | |
3640 | #endif /* CHECK_ARMAP_HASH */ | |
3641 | ||
c3fe0c41 ILT |
3642 | for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) |
3643 | { | |
23ba15b7 | 3644 | unsigned int name_offset, file_offset; |
c3fe0c41 ILT |
3645 | |
3646 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
3647 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); | |
3648 | if (file_offset == 0) | |
3649 | continue; | |
3650 | symdef_ptr->s.name = stringbase + name_offset; | |
3651 | symdef_ptr->file_offset = file_offset; | |
3652 | ++symdef_ptr; | |
3653 | ++ardata->symdef_count; | |
3654 | } | |
3655 | ||
3656 | ardata->first_file_filepos = bfd_tell (abfd); | |
3657 | /* Pad to an even boundary. */ | |
3658 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3659 | ||
3660 | bfd_has_map (abfd) = true; | |
3661 | ||
3662 | return true; | |
3663 | } | |
3664 | ||
3665 | /* Write out an armap. */ | |
3666 | ||
3667 | static boolean | |
3668 | DEFUN (ecoff_write_armap, (abfd, elength, map, orl_count, stridx), | |
3669 | bfd *abfd AND | |
3670 | unsigned int elength AND | |
3671 | struct orl *map AND | |
3672 | unsigned int orl_count AND | |
3673 | int stridx) | |
3674 | { | |
23ba15b7 | 3675 | unsigned int hashsize, hashlog; |
c3fe0c41 ILT |
3676 | unsigned int symdefsize; |
3677 | int padit; | |
3678 | unsigned int stringsize; | |
3679 | unsigned int mapsize; | |
3680 | file_ptr firstreal; | |
3681 | struct ar_hdr hdr; | |
3682 | struct stat statbuf; | |
3683 | unsigned int i; | |
23ba15b7 ILT |
3684 | bfd_byte temp[LONG_SIZE]; |
3685 | bfd_byte *hashtable; | |
c3fe0c41 ILT |
3686 | bfd *current; |
3687 | bfd *last_elt; | |
3688 | ||
23ba15b7 ILT |
3689 | /* Ultrix appears to use as a hash table size the least power of two |
3690 | greater than twice the number of entries. */ | |
3691 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3692 | ; | |
3693 | hashsize = 1 << hashlog; | |
3694 | ||
3695 | symdefsize = hashsize * 2 * LONG_SIZE; | |
c3fe0c41 ILT |
3696 | padit = stridx % 2; |
3697 | stringsize = stridx + padit; | |
3698 | ||
3699 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
23ba15b7 | 3700 | mapsize = LONG_SIZE + symdefsize + stringsize + LONG_SIZE; |
c3fe0c41 ILT |
3701 | |
3702 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3703 | ||
3704 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3705 | ||
3706 | /* Work out the ECOFF armap name. */ | |
3707 | strcpy (hdr.ar_name, ARMAP_START); | |
3708 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; | |
3709 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3710 | (abfd->xvec->header_byteorder_big_p | |
3711 | ? ARMAP_BIG_ENDIAN | |
3712 | : ARMAP_LITTLE_ENDIAN); | |
3713 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3714 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3715 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3716 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3717 | ||
3718 | /* Write the timestamp of the archive header to be just a little bit | |
3719 | later than the timestamp of the file, otherwise the linker will | |
23ba15b7 ILT |
3720 | complain that the index is out of date. Actually, the Ultrix |
3721 | linker just checks the archive name; the GNU linker may check the | |
3722 | date. */ | |
c3fe0c41 ILT |
3723 | if (stat (abfd->filename, &statbuf) < 0) |
3724 | statbuf.st_mtime = time ((PTR) NULL); | |
3725 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3726 | ||
3727 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3728 | armap. */ | |
3729 | hdr.ar_uid[0] = '0'; | |
3730 | hdr.ar_gid[0] = '0'; | |
3731 | hdr.ar_mode[0] = '0'; | |
3732 | ||
3733 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3734 | ||
3735 | hdr.ar_fmag[0] = '`'; | |
3736 | hdr.ar_fmag[1] = '\n'; | |
3737 | ||
3738 | /* Turn all null bytes in the header into spaces. */ | |
3739 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3740 | if (((char *)(&hdr))[i] == '\0') | |
3741 | (((char *)(&hdr))[i]) = ' '; | |
3742 | ||
23ba15b7 ILT |
3743 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) |
3744 | != sizeof (struct ar_hdr)) | |
3745 | return false; | |
c3fe0c41 | 3746 | |
23ba15b7 ILT |
3747 | bfd_h_put_32 (abfd, hashsize, temp); |
3748 | if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) | |
3749 | return false; | |
c3fe0c41 | 3750 | |
23ba15b7 ILT |
3751 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); |
3752 | ||
c3fe0c41 ILT |
3753 | current = abfd->archive_head; |
3754 | last_elt = current; | |
3755 | for (i = 0; i < orl_count; i++) | |
3756 | { | |
23ba15b7 | 3757 | unsigned int hash, rehash; |
c3fe0c41 ILT |
3758 | |
3759 | /* Advance firstreal to the file position of this archive | |
3760 | element. */ | |
3761 | if (((bfd *) map[i].pos) != last_elt) | |
3762 | { | |
3763 | do | |
3764 | { | |
3765 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3766 | firstreal += firstreal % 2; | |
3767 | current = current->next; | |
3768 | } | |
3769 | while (current != (bfd *) map[i].pos); | |
3770 | } | |
3771 | ||
3772 | last_elt = current; | |
3773 | ||
23ba15b7 ILT |
3774 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); |
3775 | if (bfd_h_get_32 (abfd, (PTR) (hashtable | |
3776 | + (hash * 2 * LONG_SIZE) | |
3777 | + LONG_SIZE)) | |
3778 | != 0) | |
3779 | { | |
3780 | unsigned int srch; | |
3781 | ||
3782 | /* The desired slot is already taken. */ | |
3783 | for (srch = (hash + rehash) & (hashsize - 1); | |
3784 | srch != hash; | |
3785 | srch = (srch + rehash) & (hashsize - 1)) | |
3786 | if (bfd_h_get_32 (abfd, (PTR) (hashtable | |
3787 | + (srch * 2 * LONG_SIZE) | |
3788 | + LONG_SIZE)) | |
3789 | == 0) | |
3790 | break; | |
3791 | ||
3792 | BFD_ASSERT (srch != hash); | |
3793 | ||
3794 | hash = srch; | |
3795 | } | |
3796 | ||
3797 | bfd_h_put_32 (abfd, map[i].namidx, | |
3798 | (PTR) (hashtable + hash * 2 * LONG_SIZE)); | |
3799 | bfd_h_put_32 (abfd, firstreal, | |
3800 | (PTR) (hashtable + hash * 2 * LONG_SIZE + LONG_SIZE)); | |
c3fe0c41 ILT |
3801 | } |
3802 | ||
23ba15b7 ILT |
3803 | if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize) |
3804 | return false; | |
3805 | ||
3806 | bfd_release (abfd, hashtable); | |
3807 | ||
c3fe0c41 ILT |
3808 | /* Now write the strings. */ |
3809 | bfd_h_put_32 (abfd, stringsize, temp); | |
23ba15b7 ILT |
3810 | if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) |
3811 | return false; | |
c3fe0c41 | 3812 | for (i = 0; i < orl_count; i++) |
23ba15b7 ILT |
3813 | { |
3814 | bfd_size_type len; | |
3815 | ||
3816 | len = strlen (*map[i].name) + 1; | |
3817 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3818 | return false; | |
3819 | } | |
c3fe0c41 ILT |
3820 | |
3821 | /* The spec sez this should be a newline. But in order to be | |
3822 | bug-compatible for DECstation ar we use a null. */ | |
3823 | if (padit) | |
23ba15b7 ILT |
3824 | { |
3825 | if (bfd_write ("\0", 1, 1, abfd) != 1) | |
3826 | return false; | |
3827 | } | |
c3fe0c41 ILT |
3828 | |
3829 | return true; | |
3830 | } | |
3831 | ||
3832 | /* We just use the generic extended name support. This is a GNU | |
3833 | extension. */ | |
3834 | #define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table | |
3835 | ||
3836 | /* See whether this BFD is an archive. If it is, read in the armap | |
3837 | and the extended name table. */ | |
3838 | ||
3839 | static bfd_target * | |
3840 | DEFUN (ecoff_archive_p, (abfd), | |
3841 | bfd *abfd) | |
3842 | { | |
3843 | char armag[SARMAG + 1]; | |
3844 | ||
3845 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3846 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3847 | { | |
3848 | bfd_error = wrong_format; | |
3849 | return (bfd_target *) NULL; | |
3850 | } | |
3851 | ||
3852 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3853 | involves a cast, we can't do it as the left operand of | |
3854 | assignment. */ | |
3855 | abfd->tdata.aout_ar_data = | |
3856 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3857 | ||
3858 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3859 | { | |
3860 | bfd_error = no_memory; | |
3861 | return (bfd_target *) NULL; | |
3862 | } | |
3863 | ||
3864 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3865 | ||
3866 | if (ecoff_slurp_armap (abfd) == false | |
3867 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3868 | { | |
3869 | bfd_release (abfd, bfd_ardata (abfd)); | |
3870 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3871 | return (bfd_target *) NULL; | |
3872 | } | |
3873 | ||
3874 | return abfd->xvec; | |
3875 | } | |
3876 | \f | |
515c4292 ILT |
3877 | static CONST bfd_coff_backend_data bfd_ecoff_std_swap_table = { |
3878 | (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */ | |
3879 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */ | |
3880 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */ | |
3881 | (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */ | |
3882 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */ | |
3883 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */ | |
3884 | ecoff_swap_reloc_out, ecoff_swap_filehdr_out, ecoff_swap_aouthdr_out, | |
3885 | ecoff_swap_scnhdr_out, | |
3886 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true, | |
3887 | ecoff_swap_filehdr_in, ecoff_swap_aouthdr_in, ecoff_swap_scnhdr_in, | |
3888 | ecoff_bad_format_hook, ecoff_set_arch_mach_hook, ecoff_mkobject_hook, | |
3889 | styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook, | |
3890 | ecoff_slurp_symbol_table | |
3891 | }; | |
3892 | ||
515c4292 ILT |
3893 | /* get_lineno could be written for ECOFF, but it would currently only |
3894 | be useful for linking ECOFF and COFF files together, which doesn't | |
3895 | seem too likely. */ | |
8fa0d3a0 ILT |
3896 | #define ecoff_get_lineno \ |
3897 | ((alent *(*) PARAMS ((bfd *, asymbol *))) bfd_nullvoidptr) | |
515c4292 ILT |
3898 | |
3899 | #define ecoff_core_file_failing_command _bfd_dummy_core_file_failing_command | |
3900 | #define ecoff_core_file_failing_signal _bfd_dummy_core_file_failing_signal | |
3901 | #define ecoff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p | |
515c4292 ILT |
3902 | #define ecoff_truncate_arname bfd_dont_truncate_arname |
3903 | #define ecoff_openr_next_archived_file bfd_generic_openr_next_archived_file | |
3904 | #define ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
3905 | #define ecoff_get_section_contents bfd_generic_get_section_contents | |
8fa0d3a0 | 3906 | #define ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound |
515c4292 | 3907 | #define ecoff_close_and_cleanup bfd_generic_close_and_cleanup |
515c4292 | 3908 | #define ecoff_bfd_debug_info_start bfd_void |
8fa0d3a0 | 3909 | #define ecoff_bfd_debug_info_end bfd_void |
515c4292 | 3910 | #define ecoff_bfd_debug_info_accumulate \ |
8fa0d3a0 | 3911 | ((void (*) PARAMS ((bfd *, struct sec *))) bfd_void) |
515c4292 ILT |
3912 | #define ecoff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
3913 | #define ecoff_bfd_relax_section bfd_generic_relax_section | |
c9301d7b | 3914 | |
1327fb29 | 3915 | bfd_target ecoff_little_vec = |
294eaca4 SC |
3916 | { |
3917 | "ecoff-littlemips", /* name */ | |
515c4292 | 3918 | bfd_target_ecoff_flavour, |
294eaca4 SC |
3919 | false, /* data byte order is little */ |
3920 | false, /* header byte order is little */ | |
3921 | ||
3922 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3923 | HAS_LINENO | HAS_DEBUG | | |
3924 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
3925 | ||
3926 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect | |
3927 | flags */ | |
3928 | 0, /* leading underscore */ | |
3929 | '/', /* ar_pad_char */ | |
3930 | 15, /* ar_max_namelen */ | |
3931 | 3, /* minimum alignment power */ | |
3932 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */ | |
3933 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */ | |
3934 | ||
515c4292 | 3935 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
c3fe0c41 ILT |
3936 | ecoff_archive_p, _bfd_dummy_target}, |
3937 | {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
3938 | bfd_false}, | |
3939 | {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */ | |
3940 | _bfd_write_archive_contents, bfd_false}, | |
515c4292 ILT |
3941 | JUMP_TABLE (ecoff), |
3942 | 0, 0, | |
3943 | (PTR) &bfd_ecoff_std_swap_table | |
3944 | }; | |
1327fb29 SC |
3945 | |
3946 | bfd_target ecoff_big_vec = | |
294eaca4 SC |
3947 | { |
3948 | "ecoff-bigmips", /* name */ | |
515c4292 | 3949 | bfd_target_ecoff_flavour, |
294eaca4 SC |
3950 | true, /* data byte order is big */ |
3951 | true, /* header byte order is big */ | |
3952 | ||
3953 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3954 | HAS_LINENO | HAS_DEBUG | | |
3955 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), | |
3956 | ||
3957 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */ | |
3958 | 0, /* leading underscore */ | |
3959 | ' ', /* ar_pad_char */ | |
3960 | 16, /* ar_max_namelen */ | |
3961 | 3, /* minimum alignment power */ | |
3962 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3963 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, | |
3964 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
c3fe0c41 ILT |
3965 | ecoff_archive_p, _bfd_dummy_target}, |
3966 | {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
3967 | bfd_false}, | |
515c4292 | 3968 | {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */ |
c3fe0c41 | 3969 | _bfd_write_archive_contents, bfd_false}, |
515c4292 ILT |
3970 | JUMP_TABLE(ecoff), |
3971 | 0, 0, | |
3972 | (PTR) &bfd_ecoff_std_swap_table | |
3973 | /* Note that there is another bfd_target just above this one. If | |
3974 | you are adding initializers here, you should be adding them there | |
3975 | as well. */ | |
3976 | }; |