Commit | Line | Data |
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252b5132 | 1 | /* Generic ECOFF (Extended-COFF) routines. |
e92d460e | 2 | Copyright 1990, 1991, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | Original version by Per Bothner. | |
5 | Full support added by Ian Lance Taylor, ian@cygnus.com. | |
6 | ||
b0ac09d2 | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
b0ac09d2 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
252b5132 | 13 | |
b0ac09d2 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
b0ac09d2 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libbfd.h" | |
27 | #include "aout/ar.h" | |
28 | #include "aout/ranlib.h" | |
29 | #include "aout/stab_gnu.h" | |
30 | ||
31 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines | |
32 | some other stuff which we don't want and which conflicts with stuff | |
33 | we do want. */ | |
34 | #include "libaout.h" | |
35 | #include "aout/aout64.h" | |
36 | #undef N_ABS | |
37 | #undef exec_hdr | |
38 | #undef obj_sym_filepos | |
39 | ||
40 | #include "coff/internal.h" | |
41 | #include "coff/sym.h" | |
42 | #include "coff/symconst.h" | |
43 | #include "coff/ecoff.h" | |
44 | #include "libcoff.h" | |
45 | #include "libecoff.h" | |
46 | \f | |
47 | /* Prototypes for static functions. */ | |
48 | ||
b34976b6 AM |
49 | static int ecoff_get_magic |
50 | PARAMS ((bfd *)); | |
51 | static long ecoff_sec_to_styp_flags | |
52 | PARAMS ((const char *, flagword)); | |
53 | static bfd_boolean ecoff_slurp_symbolic_header | |
54 | PARAMS ((bfd *)); | |
55 | static bfd_boolean ecoff_set_symbol_info | |
56 | PARAMS ((bfd *, SYMR *, asymbol *, int, int)); | |
57 | static void ecoff_emit_aggregate | |
58 | PARAMS ((bfd *, FDR *, char *, RNDXR *, long, const char *)); | |
59 | static char *ecoff_type_to_string | |
60 | PARAMS ((bfd *, FDR *, unsigned int)); | |
61 | static bfd_boolean ecoff_slurp_reloc_table | |
62 | PARAMS ((bfd *, asection *, asymbol **)); | |
63 | static int ecoff_sort_hdrs | |
64 | PARAMS ((const PTR, const PTR)); | |
65 | static bfd_boolean ecoff_compute_section_file_positions | |
66 | PARAMS ((bfd *)); | |
67 | static bfd_size_type ecoff_compute_reloc_file_positions | |
68 | PARAMS ((bfd *)); | |
69 | static bfd_boolean ecoff_get_extr | |
70 | PARAMS ((asymbol *, EXTR *)); | |
71 | static void ecoff_set_index | |
72 | PARAMS ((asymbol *, bfd_size_type)); | |
73 | static unsigned int ecoff_armap_hash | |
74 | PARAMS ((const char *, unsigned int *, unsigned int, unsigned int)); | |
252b5132 RH |
75 | \f |
76 | /* This stuff is somewhat copied from coffcode.h. */ | |
77 | ||
5f771d47 ILT |
78 | static asection bfd_debug_section = |
79 | { | |
d1778b88 AM |
80 | /* name, id, index, next, flags, user_set_vma, reloc_done, */ |
81 | "*DEBUG*", 0, 0, NULL, 0, 0, 0, | |
82 | /* linker_mark, linker_has_input, gc_mark, segment_mark, */ | |
83 | 0, 0, 0, 0, | |
dc810e39 | 84 | /* vma, lma, _cooked_size, _raw_size, */ |
d1778b88 AM |
85 | 0, 0, 0, 0, |
86 | /* output_offset, output_section, alignment_power, */ | |
87 | 0, NULL, 0, | |
51d7ee16 | 88 | /* relocation, orelocation, reloc_count, filepos, rel_filepos, */ |
062e2358 | 89 | NULL, NULL, 0, 0, 0, |
51d7ee16 NC |
90 | /* line_filepos, userdata, contents, lineno, lineno_count, */ |
91 | 0, NULL, NULL, NULL, 0, | |
862517b6 AM |
92 | /* entsize, comdat, moving_line_filepos, */ |
93 | 0, NULL, 0, | |
062e2358 AM |
94 | /* target_index, used_by_bfd, constructor_chain, owner, */ |
95 | 0, NULL, NULL, NULL, | |
51d7ee16 NC |
96 | /* symbol, */ |
97 | (struct symbol_cache_entry *) NULL, | |
98 | /* symbol_ptr_ptr, */ | |
99 | (struct symbol_cache_entry **) NULL, | |
100 | /* link_order_head, link_order_tail */ | |
101 | NULL, NULL | |
5f771d47 | 102 | }; |
252b5132 RH |
103 | |
104 | /* Create an ECOFF object. */ | |
105 | ||
b34976b6 | 106 | bfd_boolean |
252b5132 RH |
107 | _bfd_ecoff_mkobject (abfd) |
108 | bfd *abfd; | |
109 | { | |
dc810e39 | 110 | bfd_size_type amt = sizeof (ecoff_data_type); |
b0ac09d2 | 111 | |
dc810e39 | 112 | abfd->tdata.ecoff_obj_data = (struct ecoff_tdata *) bfd_zalloc (abfd, amt); |
252b5132 | 113 | if (abfd->tdata.ecoff_obj_data == NULL) |
b34976b6 | 114 | return FALSE; |
252b5132 | 115 | |
b34976b6 | 116 | return TRUE; |
252b5132 RH |
117 | } |
118 | ||
119 | /* This is a hook called by coff_real_object_p to create any backend | |
120 | specific information. */ | |
121 | ||
122 | PTR | |
123 | _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
124 | bfd *abfd; | |
125 | PTR filehdr; | |
126 | PTR aouthdr; | |
127 | { | |
128 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
129 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
130 | ecoff_data_type *ecoff; | |
131 | ||
82e51918 | 132 | if (! _bfd_ecoff_mkobject (abfd)) |
252b5132 RH |
133 | return NULL; |
134 | ||
135 | ecoff = ecoff_data (abfd); | |
136 | ecoff->gp_size = 8; | |
137 | ecoff->sym_filepos = internal_f->f_symptr; | |
138 | ||
139 | if (internal_a != (struct internal_aouthdr *) NULL) | |
140 | { | |
141 | int i; | |
142 | ||
143 | ecoff->text_start = internal_a->text_start; | |
144 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
145 | ecoff->gp = internal_a->gp_value; | |
146 | ecoff->gprmask = internal_a->gprmask; | |
147 | for (i = 0; i < 4; i++) | |
148 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
149 | ecoff->fprmask = internal_a->fprmask; | |
150 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
151 | abfd->flags |= D_PAGED; | |
152 | else | |
153 | abfd->flags &=~ D_PAGED; | |
154 | } | |
155 | ||
156 | /* It turns out that no special action is required by the MIPS or | |
157 | Alpha ECOFF backends. They have different information in the | |
158 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
159 | fprmask) and let the swapping routines ensure that only relevant | |
160 | information is written out. */ | |
161 | ||
162 | return (PTR) ecoff; | |
163 | } | |
164 | ||
165 | /* Initialize a new section. */ | |
166 | ||
b34976b6 | 167 | bfd_boolean |
252b5132 | 168 | _bfd_ecoff_new_section_hook (abfd, section) |
5f771d47 | 169 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
170 | asection *section; |
171 | { | |
172 | section->alignment_power = 4; | |
173 | ||
174 | if (strcmp (section->name, _TEXT) == 0 | |
175 | || strcmp (section->name, _INIT) == 0 | |
176 | || strcmp (section->name, _FINI) == 0) | |
177 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
178 | else if (strcmp (section->name, _DATA) == 0 | |
179 | || strcmp (section->name, _SDATA) == 0) | |
180 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
181 | else if (strcmp (section->name, _RDATA) == 0 | |
182 | || strcmp (section->name, _LIT8) == 0 | |
183 | || strcmp (section->name, _LIT4) == 0 | |
184 | || strcmp (section->name, _RCONST) == 0 | |
185 | || strcmp (section->name, _PDATA) == 0) | |
186 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
187 | else if (strcmp (section->name, _BSS) == 0 | |
188 | || strcmp (section->name, _SBSS) == 0) | |
189 | section->flags |= SEC_ALLOC; | |
190 | else if (strcmp (section->name, _LIB) == 0) | |
b0ac09d2 NC |
191 | /* An Irix 4 shared libary. */ |
192 | section->flags |= SEC_COFF_SHARED_LIBRARY; | |
252b5132 RH |
193 | |
194 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
195 | uncertain about .init on some systems and I don't know how shared | |
196 | libraries work. */ | |
197 | ||
b34976b6 | 198 | return TRUE; |
252b5132 RH |
199 | } |
200 | ||
201 | /* Determine the machine architecture and type. This is called from | |
202 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
203 | below. This could be an ECOFF backend routine, with one version | |
204 | for each target, but there aren't all that many ECOFF targets. */ | |
205 | ||
b34976b6 | 206 | bfd_boolean |
252b5132 RH |
207 | _bfd_ecoff_set_arch_mach_hook (abfd, filehdr) |
208 | bfd *abfd; | |
209 | PTR filehdr; | |
210 | { | |
211 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
212 | enum bfd_architecture arch; | |
213 | unsigned long mach; | |
214 | ||
215 | switch (internal_f->f_magic) | |
216 | { | |
217 | case MIPS_MAGIC_1: | |
218 | case MIPS_MAGIC_LITTLE: | |
219 | case MIPS_MAGIC_BIG: | |
220 | arch = bfd_arch_mips; | |
250d94fd | 221 | mach = bfd_mach_mips3000; |
252b5132 RH |
222 | break; |
223 | ||
224 | case MIPS_MAGIC_LITTLE2: | |
225 | case MIPS_MAGIC_BIG2: | |
b0ac09d2 | 226 | /* MIPS ISA level 2: the r6000. */ |
252b5132 | 227 | arch = bfd_arch_mips; |
250d94fd | 228 | mach = bfd_mach_mips6000; |
252b5132 RH |
229 | break; |
230 | ||
231 | case MIPS_MAGIC_LITTLE3: | |
232 | case MIPS_MAGIC_BIG3: | |
b0ac09d2 | 233 | /* MIPS ISA level 3: the r4000. */ |
252b5132 | 234 | arch = bfd_arch_mips; |
250d94fd | 235 | mach = bfd_mach_mips4000; |
252b5132 RH |
236 | break; |
237 | ||
238 | case ALPHA_MAGIC: | |
239 | arch = bfd_arch_alpha; | |
240 | mach = 0; | |
241 | break; | |
242 | ||
243 | default: | |
244 | arch = bfd_arch_obscure; | |
245 | mach = 0; | |
246 | break; | |
247 | } | |
248 | ||
249 | return bfd_default_set_arch_mach (abfd, arch, mach); | |
250 | } | |
251 | ||
252 | /* Get the magic number to use based on the architecture and machine. | |
253 | This is the inverse of _bfd_ecoff_set_arch_mach_hook, above. */ | |
254 | ||
255 | static int | |
256 | ecoff_get_magic (abfd) | |
257 | bfd *abfd; | |
258 | { | |
259 | int big, little; | |
260 | ||
261 | switch (bfd_get_arch (abfd)) | |
262 | { | |
263 | case bfd_arch_mips: | |
264 | switch (bfd_get_mach (abfd)) | |
265 | { | |
266 | default: | |
267 | case 0: | |
250d94fd | 268 | case bfd_mach_mips3000: |
252b5132 RH |
269 | big = MIPS_MAGIC_BIG; |
270 | little = MIPS_MAGIC_LITTLE; | |
271 | break; | |
272 | ||
250d94fd | 273 | case bfd_mach_mips6000: |
252b5132 RH |
274 | big = MIPS_MAGIC_BIG2; |
275 | little = MIPS_MAGIC_LITTLE2; | |
276 | break; | |
277 | ||
250d94fd | 278 | case bfd_mach_mips4000: |
252b5132 RH |
279 | big = MIPS_MAGIC_BIG3; |
280 | little = MIPS_MAGIC_LITTLE3; | |
281 | break; | |
282 | } | |
283 | ||
284 | return bfd_big_endian (abfd) ? big : little; | |
285 | ||
286 | case bfd_arch_alpha: | |
287 | return ALPHA_MAGIC; | |
288 | ||
289 | default: | |
290 | abort (); | |
291 | return 0; | |
292 | } | |
293 | } | |
294 | ||
295 | /* Get the section s_flags to use for a section. */ | |
296 | ||
297 | static long | |
298 | ecoff_sec_to_styp_flags (name, flags) | |
299 | const char *name; | |
300 | flagword flags; | |
301 | { | |
302 | long styp; | |
303 | ||
304 | styp = 0; | |
305 | ||
306 | if (strcmp (name, _TEXT) == 0) | |
307 | styp = STYP_TEXT; | |
308 | else if (strcmp (name, _DATA) == 0) | |
309 | styp = STYP_DATA; | |
310 | else if (strcmp (name, _SDATA) == 0) | |
311 | styp = STYP_SDATA; | |
312 | else if (strcmp (name, _RDATA) == 0) | |
313 | styp = STYP_RDATA; | |
314 | else if (strcmp (name, _LITA) == 0) | |
315 | styp = STYP_LITA; | |
316 | else if (strcmp (name, _LIT8) == 0) | |
317 | styp = STYP_LIT8; | |
318 | else if (strcmp (name, _LIT4) == 0) | |
319 | styp = STYP_LIT4; | |
320 | else if (strcmp (name, _BSS) == 0) | |
321 | styp = STYP_BSS; | |
322 | else if (strcmp (name, _SBSS) == 0) | |
323 | styp = STYP_SBSS; | |
324 | else if (strcmp (name, _INIT) == 0) | |
325 | styp = STYP_ECOFF_INIT; | |
326 | else if (strcmp (name, _FINI) == 0) | |
327 | styp = STYP_ECOFF_FINI; | |
328 | else if (strcmp (name, _PDATA) == 0) | |
329 | styp = STYP_PDATA; | |
330 | else if (strcmp (name, _XDATA) == 0) | |
331 | styp = STYP_XDATA; | |
332 | else if (strcmp (name, _LIB) == 0) | |
333 | styp = STYP_ECOFF_LIB; | |
334 | else if (strcmp (name, _GOT) == 0) | |
335 | styp = STYP_GOT; | |
336 | else if (strcmp (name, _HASH) == 0) | |
337 | styp = STYP_HASH; | |
338 | else if (strcmp (name, _DYNAMIC) == 0) | |
339 | styp = STYP_DYNAMIC; | |
340 | else if (strcmp (name, _LIBLIST) == 0) | |
341 | styp = STYP_LIBLIST; | |
342 | else if (strcmp (name, _RELDYN) == 0) | |
343 | styp = STYP_RELDYN; | |
344 | else if (strcmp (name, _CONFLIC) == 0) | |
345 | styp = STYP_CONFLIC; | |
346 | else if (strcmp (name, _DYNSTR) == 0) | |
347 | styp = STYP_DYNSTR; | |
348 | else if (strcmp (name, _DYNSYM) == 0) | |
349 | styp = STYP_DYNSYM; | |
350 | else if (strcmp (name, _COMMENT) == 0) | |
351 | { | |
352 | styp = STYP_COMMENT; | |
353 | flags &=~ SEC_NEVER_LOAD; | |
354 | } | |
355 | else if (strcmp (name, _RCONST) == 0) | |
356 | styp = STYP_RCONST; | |
1abaf976 | 357 | else if (flags & SEC_CODE) |
252b5132 | 358 | styp = STYP_TEXT; |
1abaf976 | 359 | else if (flags & SEC_DATA) |
252b5132 RH |
360 | styp = STYP_DATA; |
361 | else if (flags & SEC_READONLY) | |
362 | styp = STYP_RDATA; | |
363 | else if (flags & SEC_LOAD) | |
364 | styp = STYP_REG; | |
365 | else | |
366 | styp = STYP_BSS; | |
367 | ||
368 | if (flags & SEC_NEVER_LOAD) | |
369 | styp |= STYP_NOLOAD; | |
370 | ||
371 | return styp; | |
372 | } | |
373 | ||
374 | /* Get the BFD flags to use for a section. */ | |
375 | ||
b34976b6 | 376 | bfd_boolean |
7c8ca0e4 | 377 | _bfd_ecoff_styp_to_sec_flags (abfd, hdr, name, section, flags_ptr) |
5f771d47 | 378 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 379 | PTR hdr; |
5f771d47 | 380 | const char *name ATTRIBUTE_UNUSED; |
7b50b349 | 381 | asection *section ATTRIBUTE_UNUSED; |
7c8ca0e4 | 382 | flagword * flags_ptr; |
252b5132 RH |
383 | { |
384 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
385 | long styp_flags = internal_s->s_flags; | |
7c8ca0e4 | 386 | flagword sec_flags = 0; |
252b5132 RH |
387 | |
388 | if (styp_flags & STYP_NOLOAD) | |
389 | sec_flags |= SEC_NEVER_LOAD; | |
390 | ||
391 | /* For 386 COFF, at least, an unloadable text or data section is | |
392 | actually a shared library section. */ | |
393 | if ((styp_flags & STYP_TEXT) | |
394 | || (styp_flags & STYP_ECOFF_INIT) | |
395 | || (styp_flags & STYP_ECOFF_FINI) | |
396 | || (styp_flags & STYP_DYNAMIC) | |
397 | || (styp_flags & STYP_LIBLIST) | |
398 | || (styp_flags & STYP_RELDYN) | |
399 | || styp_flags == STYP_CONFLIC | |
400 | || (styp_flags & STYP_DYNSTR) | |
401 | || (styp_flags & STYP_DYNSYM) | |
402 | || (styp_flags & STYP_HASH)) | |
403 | { | |
404 | if (sec_flags & SEC_NEVER_LOAD) | |
405 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; | |
406 | else | |
407 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
408 | } | |
409 | else if ((styp_flags & STYP_DATA) | |
410 | || (styp_flags & STYP_RDATA) | |
411 | || (styp_flags & STYP_SDATA) | |
412 | || styp_flags == STYP_PDATA | |
413 | || styp_flags == STYP_XDATA | |
414 | || (styp_flags & STYP_GOT) | |
415 | || styp_flags == STYP_RCONST) | |
416 | { | |
417 | if (sec_flags & SEC_NEVER_LOAD) | |
418 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; | |
419 | else | |
420 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
421 | if ((styp_flags & STYP_RDATA) | |
422 | || styp_flags == STYP_PDATA | |
423 | || styp_flags == STYP_RCONST) | |
424 | sec_flags |= SEC_READONLY; | |
425 | } | |
426 | else if ((styp_flags & STYP_BSS) | |
427 | || (styp_flags & STYP_SBSS)) | |
7c8ca0e4 | 428 | sec_flags |= SEC_ALLOC; |
252b5132 | 429 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) |
7c8ca0e4 | 430 | sec_flags |= SEC_NEVER_LOAD; |
252b5132 RH |
431 | else if ((styp_flags & STYP_LITA) |
432 | || (styp_flags & STYP_LIT8) | |
433 | || (styp_flags & STYP_LIT4)) | |
7c8ca0e4 | 434 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; |
252b5132 | 435 | else if (styp_flags & STYP_ECOFF_LIB) |
7c8ca0e4 | 436 | sec_flags |= SEC_COFF_SHARED_LIBRARY; |
252b5132 | 437 | else |
7c8ca0e4 | 438 | sec_flags |= SEC_ALLOC | SEC_LOAD; |
252b5132 | 439 | |
7c8ca0e4 | 440 | * flags_ptr = sec_flags; |
b34976b6 | 441 | return TRUE; |
252b5132 RH |
442 | } |
443 | \f | |
444 | /* Read in the symbolic header for an ECOFF object file. */ | |
445 | ||
b34976b6 | 446 | static bfd_boolean |
252b5132 RH |
447 | ecoff_slurp_symbolic_header (abfd) |
448 | bfd *abfd; | |
449 | { | |
450 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
451 | bfd_size_type external_hdr_size; | |
452 | PTR raw = NULL; | |
453 | HDRR *internal_symhdr; | |
454 | ||
455 | /* See if we've already read it in. */ | |
1abaf976 | 456 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == |
252b5132 | 457 | backend->debug_swap.sym_magic) |
b34976b6 | 458 | return TRUE; |
252b5132 RH |
459 | |
460 | /* See whether there is a symbolic header. */ | |
461 | if (ecoff_data (abfd)->sym_filepos == 0) | |
462 | { | |
463 | bfd_get_symcount (abfd) = 0; | |
b34976b6 | 464 | return TRUE; |
252b5132 RH |
465 | } |
466 | ||
467 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
468 | as read from the file header, but on ECOFF this is always the | |
469 | size of the symbolic information header. It would be cleaner to | |
470 | handle this when we first read the file in coffgen.c. */ | |
471 | external_hdr_size = backend->debug_swap.external_hdr_size; | |
472 | if (bfd_get_symcount (abfd) != external_hdr_size) | |
473 | { | |
474 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 475 | return FALSE; |
252b5132 RH |
476 | } |
477 | ||
478 | /* Read the symbolic information header. */ | |
dc810e39 | 479 | raw = (PTR) bfd_malloc (external_hdr_size); |
252b5132 RH |
480 | if (raw == NULL) |
481 | goto error_return; | |
482 | ||
dc810e39 AM |
483 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) != 0 |
484 | || bfd_bread (raw, external_hdr_size, abfd) != external_hdr_size) | |
252b5132 RH |
485 | goto error_return; |
486 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
487 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); | |
488 | ||
489 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) | |
490 | { | |
491 | bfd_set_error (bfd_error_bad_value); | |
492 | goto error_return; | |
493 | } | |
494 | ||
495 | /* Now we can get the correct number of symbols. */ | |
496 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
497 | + internal_symhdr->iextMax); | |
498 | ||
499 | if (raw != NULL) | |
500 | free (raw); | |
b34976b6 | 501 | return TRUE; |
252b5132 RH |
502 | error_return: |
503 | if (raw != NULL) | |
504 | free (raw); | |
b34976b6 | 505 | return FALSE; |
252b5132 RH |
506 | } |
507 | ||
508 | /* Read in and swap the important symbolic information for an ECOFF | |
509 | object file. This is called by gdb via the read_debug_info entry | |
510 | point in the backend structure. */ | |
511 | ||
b34976b6 | 512 | bfd_boolean |
252b5132 RH |
513 | _bfd_ecoff_slurp_symbolic_info (abfd, ignore, debug) |
514 | bfd *abfd; | |
5f771d47 | 515 | asection *ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
516 | struct ecoff_debug_info *debug; |
517 | { | |
518 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
519 | HDRR *internal_symhdr; | |
520 | bfd_size_type raw_base; | |
521 | bfd_size_type raw_size; | |
522 | PTR raw; | |
523 | bfd_size_type external_fdr_size; | |
524 | char *fraw_src; | |
525 | char *fraw_end; | |
526 | struct fdr *fdr_ptr; | |
527 | bfd_size_type raw_end; | |
528 | bfd_size_type cb_end; | |
dc810e39 AM |
529 | bfd_size_type amt; |
530 | file_ptr pos; | |
252b5132 RH |
531 | |
532 | BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info); | |
533 | ||
534 | /* Check whether we've already gotten it, and whether there's any to | |
535 | get. */ | |
536 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
b34976b6 | 537 | return TRUE; |
252b5132 RH |
538 | if (ecoff_data (abfd)->sym_filepos == 0) |
539 | { | |
540 | bfd_get_symcount (abfd) = 0; | |
b34976b6 | 541 | return TRUE; |
252b5132 RH |
542 | } |
543 | ||
544 | if (! ecoff_slurp_symbolic_header (abfd)) | |
b34976b6 | 545 | return FALSE; |
252b5132 RH |
546 | |
547 | internal_symhdr = &debug->symbolic_header; | |
548 | ||
549 | /* Read all the symbolic information at once. */ | |
550 | raw_base = (ecoff_data (abfd)->sym_filepos | |
551 | + backend->debug_swap.external_hdr_size); | |
552 | ||
553 | /* Alpha ecoff makes the determination of raw_size difficult. It has | |
554 | an undocumented debug data section between the symhdr and the first | |
555 | documented section. And the ordering of the sections varies between | |
556 | statically and dynamically linked executables. | |
557 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
252b5132 RH |
558 | raw_end = 0; |
559 | ||
560 | #define UPDATE_RAW_END(start, count, size) \ | |
561 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
562 | if (cb_end > raw_end) \ | |
563 | raw_end = cb_end | |
564 | ||
565 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
566 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); | |
567 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); | |
568 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); | |
0e327d91 NC |
569 | /* eraxxon@alumni.rice.edu: ioptMax refers to the size of the |
570 | optimization symtab, not the number of entries */ | |
571 | UPDATE_RAW_END (cbOptOffset, ioptMax, sizeof (char)); | |
252b5132 RH |
572 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
573 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
574 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
575 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); | |
576 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); | |
577 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); | |
578 | ||
579 | #undef UPDATE_RAW_END | |
580 | ||
581 | raw_size = raw_end - raw_base; | |
582 | if (raw_size == 0) | |
583 | { | |
584 | ecoff_data (abfd)->sym_filepos = 0; | |
b34976b6 | 585 | return TRUE; |
252b5132 RH |
586 | } |
587 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
588 | if (raw == NULL) | |
b34976b6 | 589 | return FALSE; |
dc810e39 AM |
590 | |
591 | pos = ecoff_data (abfd)->sym_filepos; | |
592 | pos += backend->debug_swap.external_hdr_size; | |
593 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
594 | || bfd_bread (raw, raw_size, abfd) != raw_size) | |
252b5132 RH |
595 | { |
596 | bfd_release (abfd, raw); | |
b34976b6 | 597 | return FALSE; |
252b5132 RH |
598 | } |
599 | ||
600 | ecoff_data (abfd)->raw_syments = raw; | |
601 | ||
602 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
603 | #define FIX(off1, off2, type) \ | |
604 | if (internal_symhdr->off1 == 0) \ | |
605 | debug->off2 = (type) NULL; \ | |
606 | else \ | |
607 | debug->off2 = (type) ((char *) raw \ | |
608 | + (internal_symhdr->off1 \ | |
609 | - raw_base)) | |
b0ac09d2 | 610 | |
252b5132 RH |
611 | FIX (cbLineOffset, line, unsigned char *); |
612 | FIX (cbDnOffset, external_dnr, PTR); | |
613 | FIX (cbPdOffset, external_pdr, PTR); | |
614 | FIX (cbSymOffset, external_sym, PTR); | |
615 | FIX (cbOptOffset, external_opt, PTR); | |
616 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
617 | FIX (cbSsOffset, ss, char *); | |
618 | FIX (cbSsExtOffset, ssext, char *); | |
619 | FIX (cbFdOffset, external_fdr, PTR); | |
620 | FIX (cbRfdOffset, external_rfd, PTR); | |
621 | FIX (cbExtOffset, external_ext, PTR); | |
622 | #undef FIX | |
623 | ||
624 | /* I don't want to always swap all the data, because it will just | |
625 | waste time and most programs will never look at it. The only | |
626 | time the linker needs most of the debugging information swapped | |
627 | is when linking big-endian and little-endian MIPS object files | |
628 | together, which is not a common occurrence. | |
629 | ||
630 | We need to look at the fdr to deal with a lot of information in | |
631 | the symbols, so we swap them here. */ | |
dc810e39 AM |
632 | amt = internal_symhdr->ifdMax; |
633 | amt *= sizeof (struct fdr); | |
634 | debug->fdr = (struct fdr *) bfd_alloc (abfd, amt); | |
252b5132 | 635 | if (debug->fdr == NULL) |
b34976b6 | 636 | return FALSE; |
252b5132 RH |
637 | external_fdr_size = backend->debug_swap.external_fdr_size; |
638 | fdr_ptr = debug->fdr; | |
639 | fraw_src = (char *) debug->external_fdr; | |
640 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; | |
641 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
642 | (*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); | |
643 | ||
b34976b6 | 644 | return TRUE; |
252b5132 RH |
645 | } |
646 | \f | |
647 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
648 | in gcc/mips-tfile.c. */ | |
649 | ||
650 | /* ECOFF uses two common sections. One is the usual one, and the | |
651 | other is for small objects. All the small objects are kept | |
652 | together, and then referenced via the gp pointer, which yields | |
653 | faster assembler code. This is what we use for the small common | |
654 | section. */ | |
655 | static asection ecoff_scom_section; | |
656 | static asymbol ecoff_scom_symbol; | |
657 | static asymbol *ecoff_scom_symbol_ptr; | |
658 | ||
659 | /* Create an empty symbol. */ | |
660 | ||
661 | asymbol * | |
662 | _bfd_ecoff_make_empty_symbol (abfd) | |
663 | bfd *abfd; | |
664 | { | |
665 | ecoff_symbol_type *new; | |
dc810e39 | 666 | bfd_size_type amt = sizeof (ecoff_symbol_type); |
252b5132 | 667 | |
9bab7074 | 668 | new = (ecoff_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
669 | if (new == (ecoff_symbol_type *) NULL) |
670 | return (asymbol *) NULL; | |
252b5132 RH |
671 | new->symbol.section = (asection *) NULL; |
672 | new->fdr = (FDR *) NULL; | |
b34976b6 | 673 | new->local = FALSE; |
252b5132 RH |
674 | new->native = NULL; |
675 | new->symbol.the_bfd = abfd; | |
676 | return &new->symbol; | |
677 | } | |
678 | ||
679 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
680 | ||
b34976b6 | 681 | static bfd_boolean |
252b5132 RH |
682 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, weak) |
683 | bfd *abfd; | |
684 | SYMR *ecoff_sym; | |
685 | asymbol *asym; | |
686 | int ext; | |
687 | int weak; | |
688 | { | |
689 | asym->the_bfd = abfd; | |
690 | asym->value = ecoff_sym->value; | |
691 | asym->section = &bfd_debug_section; | |
692 | asym->udata.i = 0; | |
693 | ||
694 | /* Most symbol types are just for debugging. */ | |
695 | switch (ecoff_sym->st) | |
696 | { | |
697 | case stGlobal: | |
698 | case stStatic: | |
699 | case stLabel: | |
700 | case stProc: | |
701 | case stStaticProc: | |
702 | break; | |
703 | case stNil: | |
704 | if (ECOFF_IS_STAB (ecoff_sym)) | |
705 | { | |
706 | asym->flags = BSF_DEBUGGING; | |
b34976b6 | 707 | return TRUE; |
252b5132 RH |
708 | } |
709 | break; | |
710 | default: | |
711 | asym->flags = BSF_DEBUGGING; | |
b34976b6 | 712 | return TRUE; |
252b5132 RH |
713 | } |
714 | ||
715 | if (weak) | |
716 | asym->flags = BSF_EXPORT | BSF_WEAK; | |
717 | else if (ext) | |
718 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
719 | else | |
720 | { | |
721 | asym->flags = BSF_LOCAL; | |
722 | /* Normally, a local stProc symbol will have a corresponding | |
723 | external symbol. We mark the local symbol as a debugging | |
724 | symbol, in order to prevent nm from printing both out. | |
725 | Similarly, we mark stLabel and stabs symbols as debugging | |
726 | symbols. In both cases, we do want to set the value | |
727 | correctly based on the symbol class. */ | |
728 | if (ecoff_sym->st == stProc | |
729 | || ecoff_sym->st == stLabel | |
730 | || ECOFF_IS_STAB (ecoff_sym)) | |
731 | asym->flags |= BSF_DEBUGGING; | |
732 | } | |
b0ac09d2 NC |
733 | |
734 | if (ecoff_sym->st == stProc || ecoff_sym->st == stStaticProc) | |
735 | asym->flags |= BSF_FUNCTION; | |
736 | ||
252b5132 RH |
737 | switch (ecoff_sym->sc) |
738 | { | |
739 | case scNil: | |
740 | /* Used for compiler generated labels. Leave them in the | |
741 | debugging section, and mark them as local. If BSF_DEBUGGING | |
742 | is set, then nm does not display them for some reason. If no | |
743 | flags are set then the linker whines about them. */ | |
744 | asym->flags = BSF_LOCAL; | |
745 | break; | |
746 | case scText: | |
747 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
748 | asym->value -= asym->section->vma; | |
749 | break; | |
750 | case scData: | |
751 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
752 | asym->value -= asym->section->vma; | |
753 | break; | |
754 | case scBss: | |
755 | asym->section = bfd_make_section_old_way (abfd, ".bss"); | |
756 | asym->value -= asym->section->vma; | |
757 | break; | |
758 | case scRegister: | |
759 | asym->flags = BSF_DEBUGGING; | |
760 | break; | |
761 | case scAbs: | |
762 | asym->section = bfd_abs_section_ptr; | |
763 | break; | |
764 | case scUndefined: | |
765 | asym->section = bfd_und_section_ptr; | |
766 | asym->flags = 0; | |
767 | asym->value = 0; | |
768 | break; | |
769 | case scCdbLocal: | |
770 | case scBits: | |
771 | case scCdbSystem: | |
772 | case scRegImage: | |
773 | case scInfo: | |
774 | case scUserStruct: | |
775 | asym->flags = BSF_DEBUGGING; | |
776 | break; | |
777 | case scSData: | |
778 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
779 | asym->value -= asym->section->vma; | |
780 | break; | |
781 | case scSBss: | |
782 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
783 | asym->value -= asym->section->vma; | |
784 | break; | |
785 | case scRData: | |
786 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
787 | asym->value -= asym->section->vma; | |
788 | break; | |
789 | case scVar: | |
790 | asym->flags = BSF_DEBUGGING; | |
791 | break; | |
792 | case scCommon: | |
793 | if (asym->value > ecoff_data (abfd)->gp_size) | |
794 | { | |
795 | asym->section = bfd_com_section_ptr; | |
796 | asym->flags = 0; | |
797 | break; | |
798 | } | |
799 | /* Fall through. */ | |
800 | case scSCommon: | |
801 | if (ecoff_scom_section.name == NULL) | |
802 | { | |
803 | /* Initialize the small common section. */ | |
804 | ecoff_scom_section.name = SCOMMON; | |
805 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
806 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
807 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
808 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
809 | ecoff_scom_symbol.name = SCOMMON; | |
810 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
811 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
812 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
813 | } | |
814 | asym->section = &ecoff_scom_section; | |
815 | asym->flags = 0; | |
816 | break; | |
817 | case scVarRegister: | |
818 | case scVariant: | |
819 | asym->flags = BSF_DEBUGGING; | |
820 | break; | |
821 | case scSUndefined: | |
822 | asym->section = bfd_und_section_ptr; | |
823 | asym->flags = 0; | |
824 | asym->value = 0; | |
825 | break; | |
826 | case scInit: | |
827 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
828 | asym->value -= asym->section->vma; | |
829 | break; | |
830 | case scBasedVar: | |
831 | case scXData: | |
832 | case scPData: | |
833 | asym->flags = BSF_DEBUGGING; | |
834 | break; | |
835 | case scFini: | |
836 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
837 | asym->value -= asym->section->vma; | |
838 | break; | |
839 | case scRConst: | |
840 | asym->section = bfd_make_section_old_way (abfd, ".rconst"); | |
841 | asym->value -= asym->section->vma; | |
842 | break; | |
843 | default: | |
844 | break; | |
845 | } | |
846 | ||
847 | /* Look for special constructors symbols and make relocation entries | |
848 | in a special construction section. These are produced by the | |
849 | -fgnu-linker argument to g++. */ | |
850 | if (ECOFF_IS_STAB (ecoff_sym)) | |
851 | { | |
852 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
853 | { | |
854 | default: | |
855 | break; | |
856 | ||
857 | case N_SETA: | |
858 | case N_SETT: | |
859 | case N_SETD: | |
860 | case N_SETB: | |
861 | { | |
862 | /* This code is no longer needed. It used to be used to | |
863 | make the linker handle set symbols, but they are now | |
864 | handled in the add_symbols routine instead. */ | |
865 | #if 0 | |
866 | const char *name; | |
867 | asection *section; | |
868 | arelent_chain *reloc_chain; | |
869 | unsigned int bitsize; | |
dc810e39 | 870 | bfd_size_type amt; |
252b5132 RH |
871 | |
872 | /* Get a section with the same name as the symbol (usually | |
873 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
874 | name ___CTOR_LIST (three underscores). We need | |
875 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
876 | a leading underscore. This should be handled by gcc, | |
877 | but instead we do it here. Actually, this should all | |
878 | be done differently anyhow. */ | |
879 | name = bfd_asymbol_name (asym); | |
880 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
881 | { | |
882 | ++name; | |
883 | asym->name = name; | |
884 | } | |
885 | section = bfd_get_section_by_name (abfd, name); | |
886 | if (section == (asection *) NULL) | |
887 | { | |
888 | char *copy; | |
889 | ||
dc810e39 AM |
890 | amt = strlen (name) + 1; |
891 | copy = (char *) bfd_alloc (abfd, amt); | |
252b5132 | 892 | if (!copy) |
b34976b6 | 893 | return FALSE; |
252b5132 RH |
894 | strcpy (copy, name); |
895 | section = bfd_make_section (abfd, copy); | |
896 | } | |
897 | ||
898 | /* Build a reloc pointing to this constructor. */ | |
dc810e39 AM |
899 | amt = sizeof (arelent_chain); |
900 | reloc_chain = (arelent_chain *) bfd_alloc (abfd, amt); | |
252b5132 | 901 | if (!reloc_chain) |
b34976b6 | 902 | return FALSE; |
252b5132 RH |
903 | reloc_chain->relent.sym_ptr_ptr = |
904 | bfd_get_section (asym)->symbol_ptr_ptr; | |
905 | reloc_chain->relent.address = section->_raw_size; | |
906 | reloc_chain->relent.addend = asym->value; | |
907 | reloc_chain->relent.howto = | |
908 | ecoff_backend (abfd)->constructor_reloc; | |
909 | ||
910 | /* Set up the constructor section to hold the reloc. */ | |
911 | section->flags = SEC_CONSTRUCTOR; | |
912 | ++section->reloc_count; | |
913 | ||
914 | /* Constructor sections must be rounded to a boundary | |
915 | based on the bitsize. These are not real sections-- | |
916 | they are handled specially by the linker--so the ECOFF | |
917 | 16 byte alignment restriction does not apply. */ | |
918 | bitsize = ecoff_backend (abfd)->constructor_bitsize; | |
919 | section->alignment_power = 1; | |
920 | while ((1 << section->alignment_power) < bitsize / 8) | |
921 | ++section->alignment_power; | |
922 | ||
923 | reloc_chain->next = section->constructor_chain; | |
924 | section->constructor_chain = reloc_chain; | |
925 | section->_raw_size += bitsize / 8; | |
926 | ||
927 | #endif /* 0 */ | |
928 | ||
929 | /* Mark the symbol as a constructor. */ | |
930 | asym->flags |= BSF_CONSTRUCTOR; | |
931 | } | |
932 | break; | |
933 | } | |
934 | } | |
b34976b6 | 935 | return TRUE; |
252b5132 RH |
936 | } |
937 | ||
938 | /* Read an ECOFF symbol table. */ | |
939 | ||
b34976b6 | 940 | bfd_boolean |
252b5132 RH |
941 | _bfd_ecoff_slurp_symbol_table (abfd) |
942 | bfd *abfd; | |
943 | { | |
944 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
945 | const bfd_size_type external_ext_size | |
946 | = backend->debug_swap.external_ext_size; | |
947 | const bfd_size_type external_sym_size | |
948 | = backend->debug_swap.external_sym_size; | |
949 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
950 | = backend->debug_swap.swap_ext_in; | |
951 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
952 | = backend->debug_swap.swap_sym_in; | |
953 | bfd_size_type internal_size; | |
954 | ecoff_symbol_type *internal; | |
955 | ecoff_symbol_type *internal_ptr; | |
956 | char *eraw_src; | |
957 | char *eraw_end; | |
958 | FDR *fdr_ptr; | |
959 | FDR *fdr_end; | |
960 | ||
961 | /* If we've already read in the symbol table, do nothing. */ | |
962 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
b34976b6 | 963 | return TRUE; |
252b5132 RH |
964 | |
965 | /* Get the symbolic information. */ | |
966 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, | |
967 | &ecoff_data (abfd)->debug_info)) | |
b34976b6 | 968 | return FALSE; |
252b5132 | 969 | if (bfd_get_symcount (abfd) == 0) |
b34976b6 | 970 | return TRUE; |
252b5132 | 971 | |
dc810e39 AM |
972 | internal_size = bfd_get_symcount (abfd); |
973 | internal_size *= sizeof (ecoff_symbol_type); | |
252b5132 RH |
974 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); |
975 | if (internal == NULL) | |
b34976b6 | 976 | return FALSE; |
252b5132 RH |
977 | |
978 | internal_ptr = internal; | |
979 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; | |
980 | eraw_end = (eraw_src | |
981 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax | |
982 | * external_ext_size)); | |
983 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
984 | { | |
985 | EXTR internal_esym; | |
986 | ||
987 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
988 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext | |
989 | + internal_esym.asym.iss); | |
990 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
991 | &internal_ptr->symbol, 1, | |
992 | internal_esym.weakext)) | |
b34976b6 | 993 | return FALSE; |
252b5132 RH |
994 | /* The alpha uses a negative ifd field for section symbols. */ |
995 | if (internal_esym.ifd >= 0) | |
996 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr | |
997 | + internal_esym.ifd); | |
998 | else | |
999 | internal_ptr->fdr = NULL; | |
b34976b6 | 1000 | internal_ptr->local = FALSE; |
252b5132 RH |
1001 | internal_ptr->native = (PTR) eraw_src; |
1002 | } | |
1003 | ||
1004 | /* The local symbols must be accessed via the fdr's, because the | |
1005 | string and aux indices are relative to the fdr information. */ | |
1006 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; | |
1007 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
1008 | for (; fdr_ptr < fdr_end; fdr_ptr++) | |
1009 | { | |
1010 | char *lraw_src; | |
1011 | char *lraw_end; | |
1012 | ||
1013 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym | |
1014 | + fdr_ptr->isymBase * external_sym_size); | |
1015 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
1016 | for (; | |
1017 | lraw_src < lraw_end; | |
1018 | lraw_src += external_sym_size, internal_ptr++) | |
1019 | { | |
1020 | SYMR internal_sym; | |
1021 | ||
1022 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
1023 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss | |
1024 | + fdr_ptr->issBase | |
1025 | + internal_sym.iss); | |
1026 | if (!ecoff_set_symbol_info (abfd, &internal_sym, | |
1027 | &internal_ptr->symbol, 0, 0)) | |
b34976b6 | 1028 | return FALSE; |
252b5132 | 1029 | internal_ptr->fdr = fdr_ptr; |
b34976b6 | 1030 | internal_ptr->local = TRUE; |
252b5132 RH |
1031 | internal_ptr->native = (PTR) lraw_src; |
1032 | } | |
1033 | } | |
1034 | ||
1035 | ecoff_data (abfd)->canonical_symbols = internal; | |
1036 | ||
b34976b6 | 1037 | return TRUE; |
252b5132 RH |
1038 | } |
1039 | ||
1040 | /* Return the amount of space needed for the canonical symbols. */ | |
1041 | ||
1042 | long | |
1043 | _bfd_ecoff_get_symtab_upper_bound (abfd) | |
1044 | bfd *abfd; | |
1045 | { | |
1046 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, | |
1047 | &ecoff_data (abfd)->debug_info)) | |
1048 | return -1; | |
1049 | ||
1050 | if (bfd_get_symcount (abfd) == 0) | |
1051 | return 0; | |
1052 | ||
1053 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1054 | } | |
1055 | ||
1056 | /* Get the canonical symbols. */ | |
1057 | ||
1058 | long | |
1059 | _bfd_ecoff_get_symtab (abfd, alocation) | |
1060 | bfd *abfd; | |
1061 | asymbol **alocation; | |
1062 | { | |
1063 | unsigned int counter = 0; | |
1064 | ecoff_symbol_type *symbase; | |
1065 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1066 | ||
82e51918 | 1067 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
252b5132 RH |
1068 | return -1; |
1069 | if (bfd_get_symcount (abfd) == 0) | |
1070 | return 0; | |
1071 | ||
1072 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1073 | while (counter < bfd_get_symcount (abfd)) | |
1074 | { | |
1075 | *(location++) = symbase++; | |
1076 | counter++; | |
1077 | } | |
1078 | *location++ = (ecoff_symbol_type *) NULL; | |
1079 | return bfd_get_symcount (abfd); | |
1080 | } | |
1081 | ||
1082 | /* Turn ECOFF type information into a printable string. | |
1083 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1084 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1085 | ||
1086 | /* Write aggregate information to a string. */ | |
1087 | ||
1088 | static void | |
1089 | ecoff_emit_aggregate (abfd, fdr, string, rndx, isym, which) | |
1090 | bfd *abfd; | |
1091 | FDR *fdr; | |
1092 | char *string; | |
1093 | RNDXR *rndx; | |
1094 | long isym; | |
1095 | const char *which; | |
1096 | { | |
1097 | const struct ecoff_debug_swap * const debug_swap = | |
1098 | &ecoff_backend (abfd)->debug_swap; | |
1099 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; | |
1100 | unsigned int ifd = rndx->rfd; | |
1101 | unsigned int indx = rndx->index; | |
1102 | const char *name; | |
1abaf976 | 1103 | |
252b5132 RH |
1104 | if (ifd == 0xfff) |
1105 | ifd = isym; | |
1106 | ||
1107 | /* An ifd of -1 is an opaque type. An escaped index of 0 is a | |
1108 | struct return type of a procedure compiled without -g. */ | |
1109 | if (ifd == 0xffffffff | |
1110 | || (rndx->rfd == 0xfff && indx == 0)) | |
1111 | name = "<undefined>"; | |
1112 | else if (indx == indexNil) | |
1113 | name = "<no name>"; | |
1114 | else | |
1115 | { | |
1116 | SYMR sym; | |
1117 | ||
1118 | if (debug_info->external_rfd == NULL) | |
1119 | fdr = debug_info->fdr + ifd; | |
1120 | else | |
1121 | { | |
1122 | RFDT rfd; | |
1123 | ||
1124 | (*debug_swap->swap_rfd_in) (abfd, | |
1125 | ((char *) debug_info->external_rfd | |
1126 | + ((fdr->rfdBase + ifd) | |
1127 | * debug_swap->external_rfd_size)), | |
1128 | &rfd); | |
1129 | fdr = debug_info->fdr + rfd; | |
1130 | } | |
1131 | ||
1132 | indx += fdr->isymBase; | |
1133 | ||
1134 | (*debug_swap->swap_sym_in) (abfd, | |
1135 | ((char *) debug_info->external_sym | |
1136 | + indx * debug_swap->external_sym_size), | |
1137 | &sym); | |
1138 | ||
1139 | name = debug_info->ss + fdr->issBase + sym.iss; | |
1140 | } | |
1141 | ||
1142 | sprintf (string, | |
1143 | "%s %s { ifd = %u, index = %lu }", | |
1144 | which, name, ifd, | |
1145 | ((long) indx | |
1146 | + debug_info->symbolic_header.iextMax)); | |
1147 | } | |
1148 | ||
1149 | /* Convert the type information to string format. */ | |
1150 | ||
1151 | static char * | |
1152 | ecoff_type_to_string (abfd, fdr, indx) | |
1153 | bfd *abfd; | |
1154 | FDR *fdr; | |
1155 | unsigned int indx; | |
1156 | { | |
1157 | union aux_ext *aux_ptr; | |
1158 | int bigendian; | |
1159 | AUXU u; | |
1160 | struct qual { | |
1161 | unsigned int type; | |
1162 | int low_bound; | |
1163 | int high_bound; | |
1164 | int stride; | |
1165 | } qualifiers[7]; | |
1166 | unsigned int basic_type; | |
1167 | int i; | |
1168 | char buffer1[1024]; | |
1169 | static char buffer2[1024]; | |
1170 | char *p1 = buffer1; | |
1171 | char *p2 = buffer2; | |
1172 | RNDXR rndx; | |
1173 | ||
1174 | aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase; | |
1175 | bigendian = fdr->fBigendian; | |
1176 | ||
1177 | for (i = 0; i < 7; i++) | |
1178 | { | |
1179 | qualifiers[i].low_bound = 0; | |
1180 | qualifiers[i].high_bound = 0; | |
1181 | qualifiers[i].stride = 0; | |
1182 | } | |
1183 | ||
1184 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == (bfd_vma) -1) | |
1185 | return "-1 (no type)"; | |
1186 | _bfd_ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1187 | ||
1188 | basic_type = u.ti.bt; | |
1189 | qualifiers[0].type = u.ti.tq0; | |
1190 | qualifiers[1].type = u.ti.tq1; | |
1191 | qualifiers[2].type = u.ti.tq2; | |
1192 | qualifiers[3].type = u.ti.tq3; | |
1193 | qualifiers[4].type = u.ti.tq4; | |
1194 | qualifiers[5].type = u.ti.tq5; | |
1195 | qualifiers[6].type = tqNil; | |
1196 | ||
b0ac09d2 | 1197 | /* Go get the basic type. */ |
252b5132 RH |
1198 | switch (basic_type) |
1199 | { | |
b0ac09d2 | 1200 | case btNil: /* Undefined. */ |
252b5132 RH |
1201 | strcpy (p1, "nil"); |
1202 | break; | |
1203 | ||
b0ac09d2 | 1204 | case btAdr: /* Address - integer same size as pointer. */ |
252b5132 RH |
1205 | strcpy (p1, "address"); |
1206 | break; | |
1207 | ||
b0ac09d2 | 1208 | case btChar: /* Character. */ |
252b5132 RH |
1209 | strcpy (p1, "char"); |
1210 | break; | |
1211 | ||
b0ac09d2 | 1212 | case btUChar: /* Unsigned character. */ |
252b5132 RH |
1213 | strcpy (p1, "unsigned char"); |
1214 | break; | |
1215 | ||
b0ac09d2 | 1216 | case btShort: /* Short. */ |
252b5132 RH |
1217 | strcpy (p1, "short"); |
1218 | break; | |
1219 | ||
b0ac09d2 | 1220 | case btUShort: /* Unsigned short. */ |
252b5132 RH |
1221 | strcpy (p1, "unsigned short"); |
1222 | break; | |
1223 | ||
b0ac09d2 | 1224 | case btInt: /* Int. */ |
252b5132 RH |
1225 | strcpy (p1, "int"); |
1226 | break; | |
1227 | ||
b0ac09d2 | 1228 | case btUInt: /* Unsigned int. */ |
252b5132 RH |
1229 | strcpy (p1, "unsigned int"); |
1230 | break; | |
1231 | ||
b0ac09d2 | 1232 | case btLong: /* Long. */ |
252b5132 RH |
1233 | strcpy (p1, "long"); |
1234 | break; | |
1235 | ||
b0ac09d2 | 1236 | case btULong: /* Unsigned long. */ |
252b5132 RH |
1237 | strcpy (p1, "unsigned long"); |
1238 | break; | |
1239 | ||
b0ac09d2 | 1240 | case btFloat: /* Float (real). */ |
252b5132 RH |
1241 | strcpy (p1, "float"); |
1242 | break; | |
1243 | ||
b0ac09d2 | 1244 | case btDouble: /* Double (real). */ |
252b5132 RH |
1245 | strcpy (p1, "double"); |
1246 | break; | |
1247 | ||
1248 | /* Structures add 1-2 aux words: | |
1249 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1250 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1251 | ||
b0ac09d2 | 1252 | case btStruct: /* Structure (Record). */ |
252b5132 RH |
1253 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
1254 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1255 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1256 | "struct"); | |
b0ac09d2 | 1257 | indx++; /* Skip aux words. */ |
252b5132 RH |
1258 | break; |
1259 | ||
1260 | /* Unions add 1-2 aux words: | |
1261 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1262 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1263 | ||
b0ac09d2 | 1264 | case btUnion: /* Union. */ |
252b5132 RH |
1265 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
1266 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1267 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1268 | "union"); | |
b0ac09d2 | 1269 | indx++; /* Skip aux words. */ |
252b5132 RH |
1270 | break; |
1271 | ||
1272 | /* Enumerations add 1-2 aux words: | |
1273 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1274 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1275 | ||
b0ac09d2 | 1276 | case btEnum: /* Enumeration. */ |
252b5132 RH |
1277 | _bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); |
1278 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, | |
1279 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1280 | "enum"); | |
b0ac09d2 | 1281 | indx++; /* Skip aux words. */ |
252b5132 RH |
1282 | break; |
1283 | ||
b0ac09d2 | 1284 | case btTypedef: /* Defined via a typedef, isymRef points. */ |
252b5132 RH |
1285 | strcpy (p1, "typedef"); |
1286 | break; | |
1287 | ||
b0ac09d2 | 1288 | case btRange: /* Subrange of int. */ |
252b5132 RH |
1289 | strcpy (p1, "subrange"); |
1290 | break; | |
1291 | ||
b0ac09d2 | 1292 | case btSet: /* Pascal sets. */ |
252b5132 RH |
1293 | strcpy (p1, "set"); |
1294 | break; | |
1295 | ||
b0ac09d2 | 1296 | case btComplex: /* Fortran complex. */ |
252b5132 RH |
1297 | strcpy (p1, "complex"); |
1298 | break; | |
1299 | ||
b0ac09d2 | 1300 | case btDComplex: /* Fortran double complex. */ |
252b5132 RH |
1301 | strcpy (p1, "double complex"); |
1302 | break; | |
1303 | ||
b0ac09d2 | 1304 | case btIndirect: /* Forward or unnamed typedef. */ |
252b5132 RH |
1305 | strcpy (p1, "forward/unamed typedef"); |
1306 | break; | |
1307 | ||
b0ac09d2 | 1308 | case btFixedDec: /* Fixed Decimal. */ |
252b5132 RH |
1309 | strcpy (p1, "fixed decimal"); |
1310 | break; | |
1311 | ||
b0ac09d2 | 1312 | case btFloatDec: /* Float Decimal. */ |
252b5132 RH |
1313 | strcpy (p1, "float decimal"); |
1314 | break; | |
1315 | ||
b0ac09d2 | 1316 | case btString: /* Varying Length Character String. */ |
252b5132 RH |
1317 | strcpy (p1, "string"); |
1318 | break; | |
1319 | ||
b0ac09d2 | 1320 | case btBit: /* Aligned Bit String. */ |
252b5132 RH |
1321 | strcpy (p1, "bit"); |
1322 | break; | |
1323 | ||
b0ac09d2 | 1324 | case btPicture: /* Picture. */ |
252b5132 RH |
1325 | strcpy (p1, "picture"); |
1326 | break; | |
1327 | ||
b0ac09d2 | 1328 | case btVoid: /* Void. */ |
252b5132 RH |
1329 | strcpy (p1, "void"); |
1330 | break; | |
1331 | ||
1332 | default: | |
1333 | sprintf (p1, _("Unknown basic type %d"), (int) basic_type); | |
1334 | break; | |
1335 | } | |
1336 | ||
1337 | p1 += strlen (buffer1); | |
1338 | ||
b0ac09d2 | 1339 | /* If this is a bitfield, get the bitsize. */ |
252b5132 RH |
1340 | if (u.ti.fBitfield) |
1341 | { | |
1342 | int bitsize; | |
1343 | ||
1344 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1345 | sprintf (p1, " : %d", bitsize); | |
1346 | p1 += strlen (buffer1); | |
1347 | } | |
1348 | ||
b0ac09d2 | 1349 | /* Deal with any qualifiers. */ |
252b5132 RH |
1350 | if (qualifiers[0].type != tqNil) |
1351 | { | |
b0ac09d2 NC |
1352 | /* Snarf up any array bounds in the correct order. Arrays |
1353 | store 5 successive words in the aux. table: | |
1354 | word 0 RNDXR to type of the bounds (ie, int) | |
1355 | word 1 Current file descriptor index | |
1356 | word 2 low bound | |
1357 | word 3 high bound (or -1 if []) | |
1358 | word 4 stride size in bits. */ | |
252b5132 RH |
1359 | for (i = 0; i < 7; i++) |
1360 | { | |
1361 | if (qualifiers[i].type == tqArray) | |
1362 | { | |
1363 | qualifiers[i].low_bound = | |
1364 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1365 | qualifiers[i].high_bound = | |
1366 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1367 | qualifiers[i].stride = | |
1368 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1369 | indx += 5; | |
1370 | } | |
1371 | } | |
1372 | ||
b0ac09d2 | 1373 | /* Now print out the qualifiers. */ |
252b5132 RH |
1374 | for (i = 0; i < 6; i++) |
1375 | { | |
1376 | switch (qualifiers[i].type) | |
1377 | { | |
1378 | case tqNil: | |
1379 | case tqMax: | |
1380 | break; | |
1381 | ||
1382 | case tqPtr: | |
1383 | strcpy (p2, "ptr to "); | |
1384 | p2 += sizeof ("ptr to ")-1; | |
1385 | break; | |
1386 | ||
1387 | case tqVol: | |
1388 | strcpy (p2, "volatile "); | |
1389 | p2 += sizeof ("volatile ")-1; | |
1390 | break; | |
1391 | ||
1392 | case tqFar: | |
1393 | strcpy (p2, "far "); | |
1394 | p2 += sizeof ("far ")-1; | |
1395 | break; | |
1396 | ||
1397 | case tqProc: | |
1398 | strcpy (p2, "func. ret. "); | |
1399 | p2 += sizeof ("func. ret. "); | |
1400 | break; | |
1401 | ||
1402 | case tqArray: | |
1403 | { | |
1404 | int first_array = i; | |
1405 | int j; | |
1406 | ||
1407 | /* Print array bounds reversed (ie, in the order the C | |
1abaf976 | 1408 | programmer writes them). C is such a fun language.... */ |
252b5132 RH |
1409 | while (i < 5 && qualifiers[i+1].type == tqArray) |
1410 | i++; | |
1411 | ||
1412 | for (j = i; j >= first_array; j--) | |
1413 | { | |
1414 | strcpy (p2, "array ["); | |
1415 | p2 += sizeof ("array [")-1; | |
1416 | if (qualifiers[j].low_bound != 0) | |
1417 | sprintf (p2, | |
1418 | "%ld:%ld {%ld bits}", | |
1419 | (long) qualifiers[j].low_bound, | |
1420 | (long) qualifiers[j].high_bound, | |
1421 | (long) qualifiers[j].stride); | |
1422 | ||
1423 | else if (qualifiers[j].high_bound != -1) | |
1424 | sprintf (p2, | |
1425 | "%ld {%ld bits}", | |
1426 | (long) (qualifiers[j].high_bound + 1), | |
1427 | (long) (qualifiers[j].stride)); | |
1428 | ||
1429 | else | |
1430 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1431 | ||
1432 | p2 += strlen (p2); | |
1433 | strcpy (p2, "] of "); | |
1434 | p2 += sizeof ("] of ")-1; | |
1435 | } | |
1436 | } | |
1437 | break; | |
1438 | } | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | strcpy (p2, buffer1); | |
1443 | return buffer2; | |
1444 | } | |
1445 | ||
1446 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1447 | ||
252b5132 RH |
1448 | void |
1449 | _bfd_ecoff_get_symbol_info (abfd, symbol, ret) | |
5f771d47 | 1450 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1451 | asymbol *symbol; |
1452 | symbol_info *ret; | |
1453 | { | |
1454 | bfd_symbol_info (symbol, ret); | |
1455 | } | |
1456 | ||
1457 | /* Return whether this is a local label. */ | |
1458 | ||
b34976b6 | 1459 | bfd_boolean |
252b5132 | 1460 | _bfd_ecoff_bfd_is_local_label_name (abfd, name) |
5f771d47 | 1461 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1462 | const char *name; |
1463 | { | |
1464 | return name[0] == '$'; | |
1465 | } | |
1466 | ||
1467 | /* Print information about an ECOFF symbol. */ | |
1468 | ||
1469 | void | |
1470 | _bfd_ecoff_print_symbol (abfd, filep, symbol, how) | |
1471 | bfd *abfd; | |
1472 | PTR filep; | |
1473 | asymbol *symbol; | |
1474 | bfd_print_symbol_type how; | |
1475 | { | |
1476 | const struct ecoff_debug_swap * const debug_swap | |
1477 | = &ecoff_backend (abfd)->debug_swap; | |
1478 | FILE *file = (FILE *)filep; | |
1479 | ||
1480 | switch (how) | |
1481 | { | |
1482 | case bfd_print_symbol_name: | |
1483 | fprintf (file, "%s", symbol->name); | |
1484 | break; | |
1485 | case bfd_print_symbol_more: | |
1486 | if (ecoffsymbol (symbol)->local) | |
1487 | { | |
1488 | SYMR ecoff_sym; | |
1abaf976 | 1489 | |
252b5132 RH |
1490 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1491 | &ecoff_sym); | |
1492 | fprintf (file, "ecoff local "); | |
1493 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1494 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1495 | (unsigned) ecoff_sym.sc); | |
1496 | } | |
1497 | else | |
1498 | { | |
1499 | EXTR ecoff_ext; | |
1500 | ||
1501 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1502 | &ecoff_ext); | |
1503 | fprintf (file, "ecoff extern "); | |
1504 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1505 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1506 | (unsigned) ecoff_ext.asym.sc); | |
1507 | } | |
1508 | break; | |
1509 | case bfd_print_symbol_all: | |
b0ac09d2 | 1510 | /* Print out the symbols in a reasonable way. */ |
252b5132 RH |
1511 | { |
1512 | char type; | |
1513 | int pos; | |
1514 | EXTR ecoff_ext; | |
1515 | char jmptbl; | |
1516 | char cobol_main; | |
1517 | char weakext; | |
1518 | ||
1519 | if (ecoffsymbol (symbol)->local) | |
1520 | { | |
1521 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1522 | &ecoff_ext.asym); | |
1523 | type = 'l'; | |
1524 | pos = ((((char *) ecoffsymbol (symbol)->native | |
1525 | - (char *) ecoff_data (abfd)->debug_info.external_sym) | |
1526 | / debug_swap->external_sym_size) | |
1527 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); | |
1528 | jmptbl = ' '; | |
1529 | cobol_main = ' '; | |
1530 | weakext = ' '; | |
1531 | } | |
1532 | else | |
1533 | { | |
1534 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1535 | &ecoff_ext); | |
1536 | type = 'e'; | |
1537 | pos = (((char *) ecoffsymbol (symbol)->native | |
1538 | - (char *) ecoff_data (abfd)->debug_info.external_ext) | |
1539 | / debug_swap->external_ext_size); | |
1540 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1541 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1542 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1543 | } | |
1544 | ||
1545 | fprintf (file, "[%3d] %c ", | |
1546 | pos, type); | |
1547 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1548 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1549 | (unsigned) ecoff_ext.asym.st, | |
1550 | (unsigned) ecoff_ext.asym.sc, | |
1551 | (unsigned) ecoff_ext.asym.index, | |
1552 | jmptbl, cobol_main, weakext, | |
1553 | symbol->name); | |
1554 | ||
1555 | if (ecoffsymbol (symbol)->fdr != NULL | |
1556 | && ecoff_ext.asym.index != indexNil) | |
1557 | { | |
1558 | FDR *fdr; | |
1559 | unsigned int indx; | |
1560 | int bigendian; | |
1561 | bfd_size_type sym_base; | |
1562 | union aux_ext *aux_base; | |
1563 | ||
1564 | fdr = ecoffsymbol (symbol)->fdr; | |
1565 | indx = ecoff_ext.asym.index; | |
1566 | ||
1567 | /* sym_base is used to map the fdr relative indices which | |
1568 | appear in the file to the position number which we are | |
1569 | using. */ | |
1570 | sym_base = fdr->isymBase; | |
1571 | if (ecoffsymbol (symbol)->local) | |
1572 | sym_base += | |
1573 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
1574 | ||
1575 | /* aux_base is the start of the aux entries for this file; | |
1576 | asym.index is an offset from this. */ | |
1577 | aux_base = (ecoff_data (abfd)->debug_info.external_aux | |
1578 | + fdr->iauxBase); | |
1579 | ||
1580 | /* The aux entries are stored in host byte order; the | |
1581 | order is indicated by a bit in the fdr. */ | |
1582 | bigendian = fdr->fBigendian; | |
1583 | ||
b0ac09d2 | 1584 | /* This switch is basically from gcc/mips-tdump.c. */ |
252b5132 RH |
1585 | switch (ecoff_ext.asym.st) |
1586 | { | |
1587 | case stNil: | |
1588 | case stLabel: | |
1589 | break; | |
1590 | ||
1591 | case stFile: | |
1592 | case stBlock: | |
1593 | fprintf (file, _("\n End+1 symbol: %ld"), | |
1594 | (long) (indx + sym_base)); | |
1595 | break; | |
1596 | ||
1597 | case stEnd: | |
1598 | if (ecoff_ext.asym.sc == scText | |
1599 | || ecoff_ext.asym.sc == scInfo) | |
1600 | fprintf (file, _("\n First symbol: %ld"), | |
1601 | (long) (indx + sym_base)); | |
1602 | else | |
1abaf976 | 1603 | fprintf (file, _("\n First symbol: %ld"), |
252b5132 RH |
1604 | ((long) |
1605 | (AUX_GET_ISYM (bigendian, | |
1606 | &aux_base[ecoff_ext.asym.index]) | |
1607 | + sym_base))); | |
1608 | break; | |
1609 | ||
1610 | case stProc: | |
1611 | case stStaticProc: | |
1612 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1613 | ; | |
1614 | else if (ecoffsymbol (symbol)->local) | |
1615 | fprintf (file, _("\n End+1 symbol: %-7ld Type: %s"), | |
1616 | ((long) | |
1617 | (AUX_GET_ISYM (bigendian, | |
1618 | &aux_base[ecoff_ext.asym.index]) | |
1619 | + sym_base)), | |
1620 | ecoff_type_to_string (abfd, fdr, indx + 1)); | |
1621 | else | |
1622 | fprintf (file, _("\n Local symbol: %ld"), | |
1623 | ((long) indx | |
1624 | + (long) sym_base | |
1625 | + (ecoff_data (abfd) | |
1626 | ->debug_info.symbolic_header.iextMax))); | |
1627 | break; | |
1628 | ||
1629 | case stStruct: | |
1630 | fprintf (file, _("\n struct; End+1 symbol: %ld"), | |
1631 | (long) (indx + sym_base)); | |
1632 | break; | |
1633 | ||
1634 | case stUnion: | |
1635 | fprintf (file, _("\n union; End+1 symbol: %ld"), | |
1636 | (long) (indx + sym_base)); | |
1637 | break; | |
1638 | ||
1639 | case stEnum: | |
1640 | fprintf (file, _("\n enum; End+1 symbol: %ld"), | |
1641 | (long) (indx + sym_base)); | |
1642 | break; | |
1643 | ||
1644 | default: | |
1645 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1646 | fprintf (file, _("\n Type: %s"), | |
1647 | ecoff_type_to_string (abfd, fdr, indx)); | |
1648 | break; | |
1649 | } | |
1650 | } | |
1651 | } | |
1652 | break; | |
1653 | } | |
1654 | } | |
1655 | \f | |
1656 | /* Read in the relocs for a section. */ | |
1657 | ||
b34976b6 | 1658 | static bfd_boolean |
252b5132 RH |
1659 | ecoff_slurp_reloc_table (abfd, section, symbols) |
1660 | bfd *abfd; | |
1661 | asection *section; | |
1662 | asymbol **symbols; | |
1663 | { | |
1664 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1665 | arelent *internal_relocs; | |
1666 | bfd_size_type external_reloc_size; | |
dc810e39 | 1667 | bfd_size_type amt; |
252b5132 RH |
1668 | char *external_relocs; |
1669 | arelent *rptr; | |
1670 | unsigned int i; | |
1671 | ||
1672 | if (section->relocation != (arelent *) NULL | |
1673 | || section->reloc_count == 0 | |
1674 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
b34976b6 | 1675 | return TRUE; |
252b5132 | 1676 | |
82e51918 | 1677 | if (! _bfd_ecoff_slurp_symbol_table (abfd)) |
b34976b6 | 1678 | return FALSE; |
1abaf976 | 1679 | |
dc810e39 AM |
1680 | amt = section->reloc_count; |
1681 | amt *= sizeof (arelent); | |
1682 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
1683 | ||
252b5132 | 1684 | external_reloc_size = backend->external_reloc_size; |
dc810e39 AM |
1685 | amt = external_reloc_size * section->reloc_count; |
1686 | external_relocs = (char *) bfd_alloc (abfd, amt); | |
252b5132 RH |
1687 | if (internal_relocs == (arelent *) NULL |
1688 | || external_relocs == (char *) NULL) | |
b34976b6 | 1689 | return FALSE; |
252b5132 | 1690 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) |
b34976b6 | 1691 | return FALSE; |
dc810e39 | 1692 | if (bfd_bread (external_relocs, amt, abfd) != amt) |
b34976b6 | 1693 | return FALSE; |
252b5132 RH |
1694 | |
1695 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1696 | { | |
1697 | struct internal_reloc intern; | |
1698 | ||
1699 | (*backend->swap_reloc_in) (abfd, | |
1700 | external_relocs + i * external_reloc_size, | |
1701 | &intern); | |
1702 | ||
1703 | if (intern.r_extern) | |
1704 | { | |
1705 | /* r_symndx is an index into the external symbols. */ | |
1706 | BFD_ASSERT (intern.r_symndx >= 0 | |
1707 | && (intern.r_symndx | |
1708 | < (ecoff_data (abfd) | |
1709 | ->debug_info.symbolic_header.iextMax))); | |
1710 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
1711 | rptr->addend = 0; | |
1712 | } | |
1713 | else if (intern.r_symndx == RELOC_SECTION_NONE | |
1714 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1715 | { | |
1716 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
1717 | rptr->addend = 0; | |
1718 | } | |
1719 | else | |
1720 | { | |
dc810e39 | 1721 | const char *sec_name; |
252b5132 RH |
1722 | asection *sec; |
1723 | ||
1724 | /* r_symndx is a section key. */ | |
1725 | switch (intern.r_symndx) | |
1726 | { | |
1727 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1728 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1729 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1730 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1731 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1732 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1733 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1734 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1735 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
1736 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; | |
1737 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
1738 | case RELOC_SECTION_FINI: sec_name = ".fini"; break; | |
1739 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; | |
1740 | case RELOC_SECTION_RCONST: sec_name = ".rconst"; break; | |
1741 | default: abort (); | |
1742 | } | |
1743 | ||
1744 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1745 | if (sec == (asection *) NULL) | |
1746 | abort (); | |
1747 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
1748 | ||
1749 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
1750 | } | |
1751 | ||
1752 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
1753 | ||
1754 | /* Let the backend select the howto field and do any other | |
1755 | required processing. */ | |
1756 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); | |
1757 | } | |
1758 | ||
1759 | bfd_release (abfd, external_relocs); | |
1760 | ||
1761 | section->relocation = internal_relocs; | |
1762 | ||
b34976b6 | 1763 | return TRUE; |
252b5132 RH |
1764 | } |
1765 | ||
1766 | /* Get a canonical list of relocs. */ | |
1767 | ||
1768 | long | |
1769 | _bfd_ecoff_canonicalize_reloc (abfd, section, relptr, symbols) | |
1770 | bfd *abfd; | |
1771 | asection *section; | |
1772 | arelent **relptr; | |
1773 | asymbol **symbols; | |
1774 | { | |
1775 | unsigned int count; | |
1776 | ||
1abaf976 | 1777 | if (section->flags & SEC_CONSTRUCTOR) |
252b5132 RH |
1778 | { |
1779 | arelent_chain *chain; | |
1780 | ||
1781 | /* This section has relocs made up by us, not the file, so take | |
1782 | them out of their chain and place them into the data area | |
1783 | provided. */ | |
1784 | for (count = 0, chain = section->constructor_chain; | |
1785 | count < section->reloc_count; | |
1786 | count++, chain = chain->next) | |
1787 | *relptr++ = &chain->relent; | |
1788 | } | |
1789 | else | |
1abaf976 | 1790 | { |
252b5132 RH |
1791 | arelent *tblptr; |
1792 | ||
82e51918 | 1793 | if (! ecoff_slurp_reloc_table (abfd, section, symbols)) |
252b5132 RH |
1794 | return -1; |
1795 | ||
1796 | tblptr = section->relocation; | |
1797 | ||
1798 | for (count = 0; count < section->reloc_count; count++) | |
1799 | *relptr++ = tblptr++; | |
1800 | } | |
1801 | ||
1802 | *relptr = (arelent *) NULL; | |
1803 | ||
1804 | return section->reloc_count; | |
1805 | } | |
1806 | \f | |
1807 | /* Provided a BFD, a section and an offset into the section, calculate | |
1808 | and return the name of the source file and the line nearest to the | |
1809 | wanted location. */ | |
1810 | ||
b34976b6 | 1811 | bfd_boolean |
252b5132 RH |
1812 | _bfd_ecoff_find_nearest_line (abfd, section, ignore_symbols, offset, |
1813 | filename_ptr, functionname_ptr, retline_ptr) | |
1814 | bfd *abfd; | |
1815 | asection *section; | |
5f771d47 | 1816 | asymbol **ignore_symbols ATTRIBUTE_UNUSED; |
252b5132 | 1817 | bfd_vma offset; |
dc810e39 AM |
1818 | const char **filename_ptr; |
1819 | const char **functionname_ptr; | |
252b5132 RH |
1820 | unsigned int *retline_ptr; |
1821 | { | |
1822 | const struct ecoff_debug_swap * const debug_swap | |
1823 | = &ecoff_backend (abfd)->debug_swap; | |
1824 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; | |
1825 | struct ecoff_find_line *line_info; | |
1826 | ||
1827 | /* Make sure we have the FDR's. */ | |
1828 | if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, debug_info) | |
1829 | || bfd_get_symcount (abfd) == 0) | |
b34976b6 | 1830 | return FALSE; |
252b5132 RH |
1831 | |
1832 | if (ecoff_data (abfd)->find_line_info == NULL) | |
1833 | { | |
dc810e39 AM |
1834 | bfd_size_type amt = sizeof (struct ecoff_find_line); |
1835 | ecoff_data (abfd)->find_line_info | |
1836 | = (struct ecoff_find_line *) bfd_zalloc (abfd, amt); | |
252b5132 | 1837 | if (ecoff_data (abfd)->find_line_info == NULL) |
b34976b6 | 1838 | return FALSE; |
252b5132 RH |
1839 | } |
1840 | line_info = ecoff_data (abfd)->find_line_info; | |
1841 | ||
1842 | return _bfd_ecoff_locate_line (abfd, section, offset, debug_info, | |
1843 | debug_swap, line_info, filename_ptr, | |
1844 | functionname_ptr, retline_ptr); | |
1845 | } | |
1846 | \f | |
1847 | /* Copy private BFD data. This is called by objcopy and strip. We | |
1848 | use it to copy the ECOFF debugging information from one BFD to the | |
1849 | other. It would be theoretically possible to represent the ECOFF | |
1850 | debugging information in the symbol table. However, it would be a | |
1851 | lot of work, and there would be little gain (gas, gdb, and ld | |
1852 | already access the ECOFF debugging information via the | |
1853 | ecoff_debug_info structure, and that structure would have to be | |
1854 | retained in order to support ECOFF debugging in MIPS ELF). | |
1855 | ||
1856 | The debugging information for the ECOFF external symbols comes from | |
1857 | the symbol table, so this function only handles the other debugging | |
1858 | information. */ | |
1859 | ||
b34976b6 | 1860 | bfd_boolean |
252b5132 RH |
1861 | _bfd_ecoff_bfd_copy_private_bfd_data (ibfd, obfd) |
1862 | bfd *ibfd; | |
1863 | bfd *obfd; | |
1864 | { | |
1865 | struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info; | |
1866 | struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info; | |
1867 | register int i; | |
1868 | asymbol **sym_ptr_ptr; | |
1869 | size_t c; | |
b34976b6 | 1870 | bfd_boolean local; |
252b5132 RH |
1871 | |
1872 | /* We only want to copy information over if both BFD's use ECOFF | |
1873 | format. */ | |
1874 | if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour | |
1875 | || bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) | |
b34976b6 | 1876 | return TRUE; |
252b5132 RH |
1877 | |
1878 | /* Copy the GP value and the register masks. */ | |
1879 | ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp; | |
1880 | ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask; | |
1881 | ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask; | |
1882 | for (i = 0; i < 3; i++) | |
1883 | ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i]; | |
1884 | ||
1885 | /* Copy the version stamp. */ | |
1886 | oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp; | |
1887 | ||
1888 | /* If there are no symbols, don't copy any debugging information. */ | |
1889 | c = bfd_get_symcount (obfd); | |
1890 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
1891 | if (c == 0 || sym_ptr_ptr == (asymbol **) NULL) | |
b34976b6 | 1892 | return TRUE; |
252b5132 RH |
1893 | |
1894 | /* See if there are any local symbols. */ | |
b34976b6 | 1895 | local = FALSE; |
252b5132 RH |
1896 | for (; c > 0; c--, sym_ptr_ptr++) |
1897 | { | |
1898 | if (ecoffsymbol (*sym_ptr_ptr)->local) | |
1899 | { | |
b34976b6 | 1900 | local = TRUE; |
252b5132 RH |
1901 | break; |
1902 | } | |
1903 | } | |
1904 | ||
1905 | if (local) | |
1906 | { | |
1907 | /* There are some local symbols. We just bring over all the | |
1908 | debugging information. FIXME: This is not quite the right | |
1909 | thing to do. If the user has asked us to discard all | |
1910 | debugging information, then we are probably going to wind up | |
1911 | keeping it because there will probably be some local symbol | |
1912 | which objcopy did not discard. We should actually break | |
1913 | apart the debugging information and only keep that which | |
1914 | applies to the symbols we want to keep. */ | |
1915 | oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax; | |
1916 | oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine; | |
1917 | oinfo->line = iinfo->line; | |
1918 | ||
1919 | oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax; | |
1920 | oinfo->external_dnr = iinfo->external_dnr; | |
1921 | ||
1922 | oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax; | |
1923 | oinfo->external_pdr = iinfo->external_pdr; | |
1924 | ||
1925 | oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax; | |
1926 | oinfo->external_sym = iinfo->external_sym; | |
1927 | ||
1928 | oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax; | |
1929 | oinfo->external_opt = iinfo->external_opt; | |
1930 | ||
1931 | oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax; | |
1932 | oinfo->external_aux = iinfo->external_aux; | |
1933 | ||
1934 | oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax; | |
1935 | oinfo->ss = iinfo->ss; | |
1936 | ||
1937 | oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax; | |
1938 | oinfo->external_fdr = iinfo->external_fdr; | |
1939 | ||
1940 | oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd; | |
1941 | oinfo->external_rfd = iinfo->external_rfd; | |
1942 | } | |
1943 | else | |
1944 | { | |
1945 | /* We are discarding all the local symbol information. Look | |
1946 | through the external symbols and remove all references to FDR | |
1947 | or aux information. */ | |
1948 | c = bfd_get_symcount (obfd); | |
1949 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
1950 | for (; c > 0; c--, sym_ptr_ptr++) | |
1951 | { | |
1952 | EXTR esym; | |
1953 | ||
1954 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_in)) | |
1955 | (obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym); | |
1956 | esym.ifd = ifdNil; | |
1957 | esym.asym.index = indexNil; | |
1958 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_out)) | |
1959 | (obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native); | |
1960 | } | |
1961 | } | |
1962 | ||
b34976b6 | 1963 | return TRUE; |
252b5132 RH |
1964 | } |
1965 | \f | |
1966 | /* Set the architecture. The supported architecture is stored in the | |
1967 | backend pointer. We always set the architecture anyhow, since many | |
1968 | callers ignore the return value. */ | |
1969 | ||
b34976b6 | 1970 | bfd_boolean |
252b5132 RH |
1971 | _bfd_ecoff_set_arch_mach (abfd, arch, machine) |
1972 | bfd *abfd; | |
1973 | enum bfd_architecture arch; | |
1974 | unsigned long machine; | |
1975 | { | |
1976 | bfd_default_set_arch_mach (abfd, arch, machine); | |
1977 | return arch == ecoff_backend (abfd)->arch; | |
1978 | } | |
1979 | ||
1980 | /* Get the size of the section headers. */ | |
1981 | ||
252b5132 RH |
1982 | int |
1983 | _bfd_ecoff_sizeof_headers (abfd, reloc) | |
1984 | bfd *abfd; | |
b34976b6 | 1985 | bfd_boolean reloc ATTRIBUTE_UNUSED; |
252b5132 RH |
1986 | { |
1987 | asection *current; | |
1988 | int c; | |
1989 | int ret; | |
1990 | ||
1991 | c = 0; | |
1992 | for (current = abfd->sections; | |
1abaf976 KH |
1993 | current != (asection *)NULL; |
1994 | current = current->next) | |
252b5132 RH |
1995 | ++c; |
1996 | ||
1997 | ret = (bfd_coff_filhsz (abfd) | |
1998 | + bfd_coff_aoutsz (abfd) | |
1999 | + c * bfd_coff_scnhsz (abfd)); | |
2000 | return BFD_ALIGN (ret, 16); | |
2001 | } | |
2002 | ||
2003 | /* Get the contents of a section. */ | |
2004 | ||
b34976b6 | 2005 | bfd_boolean |
252b5132 RH |
2006 | _bfd_ecoff_get_section_contents (abfd, section, location, offset, count) |
2007 | bfd *abfd; | |
2008 | asection *section; | |
2009 | PTR location; | |
2010 | file_ptr offset; | |
2011 | bfd_size_type count; | |
2012 | { | |
2013 | return _bfd_generic_get_section_contents (abfd, section, location, | |
2014 | offset, count); | |
2015 | } | |
2016 | ||
2017 | /* Sort sections by VMA, but put SEC_ALLOC sections first. This is | |
2018 | called via qsort. */ | |
2019 | ||
2020 | static int | |
2021 | ecoff_sort_hdrs (arg1, arg2) | |
2022 | const PTR arg1; | |
2023 | const PTR arg2; | |
2024 | { | |
2025 | const asection *hdr1 = *(const asection **) arg1; | |
2026 | const asection *hdr2 = *(const asection **) arg2; | |
2027 | ||
2028 | if ((hdr1->flags & SEC_ALLOC) != 0) | |
2029 | { | |
2030 | if ((hdr2->flags & SEC_ALLOC) == 0) | |
2031 | return -1; | |
2032 | } | |
2033 | else | |
2034 | { | |
2035 | if ((hdr2->flags & SEC_ALLOC) != 0) | |
2036 | return 1; | |
2037 | } | |
2038 | if (hdr1->vma < hdr2->vma) | |
2039 | return -1; | |
2040 | else if (hdr1->vma > hdr2->vma) | |
2041 | return 1; | |
2042 | else | |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | /* Calculate the file position for each section, and set | |
2047 | reloc_filepos. */ | |
2048 | ||
b34976b6 | 2049 | static bfd_boolean |
252b5132 RH |
2050 | ecoff_compute_section_file_positions (abfd) |
2051 | bfd *abfd; | |
2052 | { | |
2053 | file_ptr sofar, file_sofar; | |
2054 | asection **sorted_hdrs; | |
2055 | asection *current; | |
2056 | unsigned int i; | |
2057 | file_ptr old_sofar; | |
b34976b6 AM |
2058 | bfd_boolean rdata_in_text; |
2059 | bfd_boolean first_data, first_nonalloc; | |
252b5132 | 2060 | const bfd_vma round = ecoff_backend (abfd)->round; |
dc810e39 | 2061 | bfd_size_type amt; |
252b5132 | 2062 | |
b34976b6 | 2063 | sofar = _bfd_ecoff_sizeof_headers (abfd, FALSE); |
252b5132 RH |
2064 | file_sofar = sofar; |
2065 | ||
2066 | /* Sort the sections by VMA. */ | |
dc810e39 AM |
2067 | amt = abfd->section_count; |
2068 | amt *= sizeof (asection *); | |
2069 | sorted_hdrs = (asection **) bfd_malloc (amt); | |
252b5132 | 2070 | if (sorted_hdrs == NULL) |
b34976b6 | 2071 | return FALSE; |
252b5132 RH |
2072 | for (current = abfd->sections, i = 0; |
2073 | current != NULL; | |
2074 | current = current->next, i++) | |
2075 | sorted_hdrs[i] = current; | |
2076 | BFD_ASSERT (i == abfd->section_count); | |
2077 | ||
2078 | qsort (sorted_hdrs, abfd->section_count, sizeof (asection *), | |
2079 | ecoff_sort_hdrs); | |
2080 | ||
2081 | /* Some versions of the OSF linker put the .rdata section in the | |
2082 | text segment, and some do not. */ | |
2083 | rdata_in_text = ecoff_backend (abfd)->rdata_in_text; | |
2084 | if (rdata_in_text) | |
2085 | { | |
2086 | for (i = 0; i < abfd->section_count; i++) | |
2087 | { | |
2088 | current = sorted_hdrs[i]; | |
2089 | if (strcmp (current->name, _RDATA) == 0) | |
2090 | break; | |
2091 | if ((current->flags & SEC_CODE) == 0 | |
2092 | && strcmp (current->name, _PDATA) != 0 | |
2093 | && strcmp (current->name, _RCONST) != 0) | |
2094 | { | |
b34976b6 | 2095 | rdata_in_text = FALSE; |
252b5132 RH |
2096 | break; |
2097 | } | |
2098 | } | |
2099 | } | |
2100 | ecoff_data (abfd)->rdata_in_text = rdata_in_text; | |
2101 | ||
b34976b6 AM |
2102 | first_data = TRUE; |
2103 | first_nonalloc = TRUE; | |
252b5132 RH |
2104 | for (i = 0; i < abfd->section_count; i++) |
2105 | { | |
2106 | unsigned int alignment_power; | |
2107 | ||
2108 | current = sorted_hdrs[i]; | |
2109 | ||
2110 | /* For the Alpha ECOFF .pdata section the lnnoptr field is | |
2111 | supposed to indicate the number of .pdata entries that are | |
2112 | really in the section. Each entry is 8 bytes. We store this | |
2113 | away in line_filepos before increasing the section size. */ | |
2114 | if (strcmp (current->name, _PDATA) == 0) | |
2115 | current->line_filepos = current->_raw_size / 8; | |
2116 | ||
2117 | alignment_power = current->alignment_power; | |
2118 | ||
2119 | /* On Ultrix, the data sections in an executable file must be | |
2120 | aligned to a page boundary within the file. This does not | |
2121 | affect the section size, though. FIXME: Does this work for | |
2122 | other platforms? It requires some modification for the | |
2123 | Alpha, because .rdata on the Alpha goes with the text, not | |
2124 | the data. */ | |
2125 | if ((abfd->flags & EXEC_P) != 0 | |
2126 | && (abfd->flags & D_PAGED) != 0 | |
2127 | && ! first_data | |
2128 | && (current->flags & SEC_CODE) == 0 | |
2129 | && (! rdata_in_text | |
2130 | || strcmp (current->name, _RDATA) != 0) | |
2131 | && strcmp (current->name, _PDATA) != 0 | |
2132 | && strcmp (current->name, _RCONST) != 0) | |
2133 | { | |
2134 | sofar = (sofar + round - 1) &~ (round - 1); | |
2135 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
b34976b6 | 2136 | first_data = FALSE; |
252b5132 RH |
2137 | } |
2138 | else if (strcmp (current->name, _LIB) == 0) | |
2139 | { | |
2140 | /* On Irix 4, the location of contents of the .lib section | |
2141 | from a shared library section is also rounded up to a | |
2142 | page boundary. */ | |
2143 | ||
2144 | sofar = (sofar + round - 1) &~ (round - 1); | |
2145 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
2146 | } | |
2147 | else if (first_nonalloc | |
2148 | && (current->flags & SEC_ALLOC) == 0 | |
2149 | && (abfd->flags & D_PAGED) != 0) | |
2150 | { | |
2151 | /* Skip up to the next page for an unallocated section, such | |
2152 | as the .comment section on the Alpha. This leaves room | |
2153 | for the .bss section. */ | |
b34976b6 | 2154 | first_nonalloc = FALSE; |
252b5132 RH |
2155 | sofar = (sofar + round - 1) &~ (round - 1); |
2156 | file_sofar = (file_sofar + round - 1) &~ (round - 1); | |
2157 | } | |
2158 | ||
2159 | /* Align the sections in the file to the same boundary on | |
2160 | which they are aligned in virtual memory. */ | |
2161 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); | |
2162 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2163 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); | |
2164 | ||
2165 | if ((abfd->flags & D_PAGED) != 0 | |
2166 | && (current->flags & SEC_ALLOC) != 0) | |
2167 | { | |
2168 | sofar += (current->vma - sofar) % round; | |
2169 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2170 | file_sofar += (current->vma - file_sofar) % round; | |
2171 | } | |
2172 | ||
2173 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0) | |
2174 | current->filepos = file_sofar; | |
2175 | ||
2176 | sofar += current->_raw_size; | |
2177 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2178 | file_sofar += current->_raw_size; | |
2179 | ||
b0ac09d2 | 2180 | /* Make sure that this section is of the right size too. */ |
252b5132 RH |
2181 | old_sofar = sofar; |
2182 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); | |
2183 | if ((current->flags & SEC_HAS_CONTENTS) != 0) | |
2184 | file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); | |
2185 | current->_raw_size += sofar - old_sofar; | |
2186 | } | |
2187 | ||
2188 | free (sorted_hdrs); | |
2189 | sorted_hdrs = NULL; | |
2190 | ||
2191 | ecoff_data (abfd)->reloc_filepos = file_sofar; | |
2192 | ||
b34976b6 | 2193 | return TRUE; |
252b5132 RH |
2194 | } |
2195 | ||
2196 | /* Determine the location of the relocs for all the sections in the | |
2197 | output file, as well as the location of the symbolic debugging | |
2198 | information. */ | |
2199 | ||
2200 | static bfd_size_type | |
2201 | ecoff_compute_reloc_file_positions (abfd) | |
2202 | bfd *abfd; | |
2203 | { | |
2204 | const bfd_size_type external_reloc_size = | |
2205 | ecoff_backend (abfd)->external_reloc_size; | |
2206 | file_ptr reloc_base; | |
2207 | bfd_size_type reloc_size; | |
2208 | asection *current; | |
2209 | file_ptr sym_base; | |
2210 | ||
2211 | if (! abfd->output_has_begun) | |
2212 | { | |
2213 | if (! ecoff_compute_section_file_positions (abfd)) | |
2214 | abort (); | |
b34976b6 | 2215 | abfd->output_has_begun = TRUE; |
252b5132 | 2216 | } |
1abaf976 | 2217 | |
252b5132 RH |
2218 | reloc_base = ecoff_data (abfd)->reloc_filepos; |
2219 | ||
2220 | reloc_size = 0; | |
2221 | for (current = abfd->sections; | |
1abaf976 KH |
2222 | current != (asection *)NULL; |
2223 | current = current->next) | |
252b5132 RH |
2224 | { |
2225 | if (current->reloc_count == 0) | |
2226 | current->rel_filepos = 0; | |
2227 | else | |
2228 | { | |
2229 | bfd_size_type relsize; | |
2230 | ||
2231 | current->rel_filepos = reloc_base; | |
2232 | relsize = current->reloc_count * external_reloc_size; | |
2233 | reloc_size += relsize; | |
2234 | reloc_base += relsize; | |
2235 | } | |
2236 | } | |
2237 | ||
2238 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; | |
2239 | ||
2240 | /* At least on Ultrix, the symbol table of an executable file must | |
2241 | be aligned to a page boundary. FIXME: Is this true on other | |
2242 | platforms? */ | |
2243 | if ((abfd->flags & EXEC_P) != 0 | |
2244 | && (abfd->flags & D_PAGED) != 0) | |
2245 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) | |
2246 | &~ (ecoff_backend (abfd)->round - 1)); | |
2247 | ||
2248 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2249 | ||
2250 | return reloc_size; | |
2251 | } | |
2252 | ||
2253 | /* Set the contents of a section. */ | |
2254 | ||
b34976b6 | 2255 | bfd_boolean |
252b5132 RH |
2256 | _bfd_ecoff_set_section_contents (abfd, section, location, offset, count) |
2257 | bfd *abfd; | |
2258 | asection *section; | |
2259 | PTR location; | |
2260 | file_ptr offset; | |
2261 | bfd_size_type count; | |
2262 | { | |
dc810e39 AM |
2263 | file_ptr pos; |
2264 | ||
252b5132 | 2265 | /* This must be done first, because bfd_set_section_contents is |
b34976b6 | 2266 | going to set output_has_begun to TRUE. */ |
82e51918 | 2267 | if (! abfd->output_has_begun) |
252b5132 RH |
2268 | { |
2269 | if (! ecoff_compute_section_file_positions (abfd)) | |
b34976b6 | 2270 | return FALSE; |
252b5132 RH |
2271 | } |
2272 | ||
2273 | /* Handle the .lib section specially so that Irix 4 shared libraries | |
2274 | work out. See coff_set_section_contents in coffcode.h. */ | |
2275 | if (strcmp (section->name, _LIB) == 0) | |
2276 | { | |
2277 | bfd_byte *rec, *recend; | |
2278 | ||
2279 | rec = (bfd_byte *) location; | |
2280 | recend = rec + count; | |
2281 | while (rec < recend) | |
2282 | { | |
2283 | ++section->lma; | |
2284 | rec += bfd_get_32 (abfd, rec) * 4; | |
2285 | } | |
2286 | ||
2287 | BFD_ASSERT (rec == recend); | |
2288 | } | |
2289 | ||
2290 | if (count == 0) | |
b34976b6 | 2291 | return TRUE; |
252b5132 | 2292 | |
dc810e39 AM |
2293 | pos = section->filepos + offset; |
2294 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
2295 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 2296 | return FALSE; |
252b5132 | 2297 | |
b34976b6 | 2298 | return TRUE; |
252b5132 RH |
2299 | } |
2300 | ||
2301 | /* Get the GP value for an ECOFF file. This is a hook used by | |
2302 | nlmconv. */ | |
2303 | ||
2304 | bfd_vma | |
2305 | bfd_ecoff_get_gp_value (abfd) | |
2306 | bfd *abfd; | |
2307 | { | |
2308 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2309 | || bfd_get_format (abfd) != bfd_object) | |
2310 | { | |
2311 | bfd_set_error (bfd_error_invalid_operation); | |
2312 | return 0; | |
2313 | } | |
1abaf976 | 2314 | |
252b5132 RH |
2315 | return ecoff_data (abfd)->gp; |
2316 | } | |
2317 | ||
2318 | /* Set the GP value for an ECOFF file. This is a hook used by the | |
2319 | assembler. */ | |
2320 | ||
b34976b6 | 2321 | bfd_boolean |
252b5132 RH |
2322 | bfd_ecoff_set_gp_value (abfd, gp_value) |
2323 | bfd *abfd; | |
2324 | bfd_vma gp_value; | |
2325 | { | |
2326 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2327 | || bfd_get_format (abfd) != bfd_object) | |
2328 | { | |
2329 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2330 | return FALSE; |
252b5132 RH |
2331 | } |
2332 | ||
2333 | ecoff_data (abfd)->gp = gp_value; | |
2334 | ||
b34976b6 | 2335 | return TRUE; |
252b5132 RH |
2336 | } |
2337 | ||
2338 | /* Set the register masks for an ECOFF file. This is a hook used by | |
2339 | the assembler. */ | |
2340 | ||
b34976b6 | 2341 | bfd_boolean |
252b5132 RH |
2342 | bfd_ecoff_set_regmasks (abfd, gprmask, fprmask, cprmask) |
2343 | bfd *abfd; | |
2344 | unsigned long gprmask; | |
2345 | unsigned long fprmask; | |
2346 | unsigned long *cprmask; | |
2347 | { | |
2348 | ecoff_data_type *tdata; | |
2349 | ||
2350 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2351 | || bfd_get_format (abfd) != bfd_object) | |
2352 | { | |
2353 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2354 | return FALSE; |
252b5132 RH |
2355 | } |
2356 | ||
2357 | tdata = ecoff_data (abfd); | |
2358 | tdata->gprmask = gprmask; | |
2359 | tdata->fprmask = fprmask; | |
2360 | if (cprmask != (unsigned long *) NULL) | |
2361 | { | |
b0ac09d2 | 2362 | int i; |
252b5132 RH |
2363 | |
2364 | for (i = 0; i < 3; i++) | |
2365 | tdata->cprmask[i] = cprmask[i]; | |
2366 | } | |
2367 | ||
b34976b6 | 2368 | return TRUE; |
252b5132 RH |
2369 | } |
2370 | ||
2371 | /* Get ECOFF EXTR information for an external symbol. This function | |
2372 | is passed to bfd_ecoff_debug_externals. */ | |
2373 | ||
b34976b6 | 2374 | static bfd_boolean |
252b5132 RH |
2375 | ecoff_get_extr (sym, esym) |
2376 | asymbol *sym; | |
2377 | EXTR *esym; | |
2378 | { | |
2379 | ecoff_symbol_type *ecoff_sym_ptr; | |
2380 | bfd *input_bfd; | |
2381 | ||
2382 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour | |
2383 | || ecoffsymbol (sym)->native == NULL) | |
2384 | { | |
2385 | /* Don't include debugging, local, or section symbols. */ | |
2386 | if ((sym->flags & BSF_DEBUGGING) != 0 | |
2387 | || (sym->flags & BSF_LOCAL) != 0 | |
2388 | || (sym->flags & BSF_SECTION_SYM) != 0) | |
b34976b6 | 2389 | return FALSE; |
252b5132 RH |
2390 | |
2391 | esym->jmptbl = 0; | |
2392 | esym->cobol_main = 0; | |
2393 | esym->weakext = (sym->flags & BSF_WEAK) != 0; | |
2394 | esym->reserved = 0; | |
2395 | esym->ifd = ifdNil; | |
2396 | /* FIXME: we can do better than this for st and sc. */ | |
2397 | esym->asym.st = stGlobal; | |
2398 | esym->asym.sc = scAbs; | |
2399 | esym->asym.reserved = 0; | |
2400 | esym->asym.index = indexNil; | |
b34976b6 | 2401 | return TRUE; |
252b5132 RH |
2402 | } |
2403 | ||
2404 | ecoff_sym_ptr = ecoffsymbol (sym); | |
2405 | ||
2406 | if (ecoff_sym_ptr->local) | |
b34976b6 | 2407 | return FALSE; |
252b5132 RH |
2408 | |
2409 | input_bfd = bfd_asymbol_bfd (sym); | |
2410 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) | |
2411 | (input_bfd, ecoff_sym_ptr->native, esym); | |
2412 | ||
2413 | /* If the symbol was defined by the linker, then esym will be | |
2414 | undefined but sym will not be. Get a better class for such a | |
2415 | symbol. */ | |
2416 | if ((esym->asym.sc == scUndefined | |
2417 | || esym->asym.sc == scSUndefined) | |
2418 | && ! bfd_is_und_section (bfd_get_section (sym))) | |
2419 | esym->asym.sc = scAbs; | |
2420 | ||
2421 | /* Adjust the FDR index for the symbol by that used for the input | |
2422 | BFD. */ | |
2423 | if (esym->ifd != -1) | |
2424 | { | |
2425 | struct ecoff_debug_info *input_debug; | |
2426 | ||
2427 | input_debug = &ecoff_data (input_bfd)->debug_info; | |
2428 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); | |
2429 | if (input_debug->ifdmap != (RFDT *) NULL) | |
2430 | esym->ifd = input_debug->ifdmap[esym->ifd]; | |
2431 | } | |
2432 | ||
b34976b6 | 2433 | return TRUE; |
252b5132 RH |
2434 | } |
2435 | ||
2436 | /* Set the external symbol index. This routine is passed to | |
2437 | bfd_ecoff_debug_externals. */ | |
2438 | ||
2439 | static void | |
2440 | ecoff_set_index (sym, indx) | |
2441 | asymbol *sym; | |
2442 | bfd_size_type indx; | |
2443 | { | |
2444 | ecoff_set_sym_index (sym, indx); | |
2445 | } | |
2446 | ||
2447 | /* Write out an ECOFF file. */ | |
2448 | ||
b34976b6 | 2449 | bfd_boolean |
252b5132 RH |
2450 | _bfd_ecoff_write_object_contents (abfd) |
2451 | bfd *abfd; | |
2452 | { | |
2453 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2454 | const bfd_vma round = backend->round; | |
2455 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2456 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2457 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2458 | const bfd_size_type external_hdr_size | |
2459 | = backend->debug_swap.external_hdr_size; | |
2460 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
b34976b6 AM |
2461 | void (* const adjust_reloc_out) |
2462 | PARAMS ((bfd *, const arelent *, struct internal_reloc *)) | |
252b5132 | 2463 | = backend->adjust_reloc_out; |
b34976b6 AM |
2464 | void (* const swap_reloc_out) |
2465 | PARAMS ((bfd *, const struct internal_reloc *, PTR)) | |
252b5132 RH |
2466 | = backend->swap_reloc_out; |
2467 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
2468 | HDRR * const symhdr = &debug->symbolic_header; | |
2469 | asection *current; | |
2470 | unsigned int count; | |
2471 | bfd_size_type reloc_size; | |
2472 | bfd_size_type text_size; | |
2473 | bfd_vma text_start; | |
b34976b6 | 2474 | bfd_boolean set_text_start; |
252b5132 RH |
2475 | bfd_size_type data_size; |
2476 | bfd_vma data_start; | |
b34976b6 | 2477 | bfd_boolean set_data_start; |
252b5132 RH |
2478 | bfd_size_type bss_size; |
2479 | PTR buff = NULL; | |
2480 | PTR reloc_buff = NULL; | |
2481 | struct internal_filehdr internal_f; | |
2482 | struct internal_aouthdr internal_a; | |
2483 | int i; | |
2484 | ||
2485 | /* Determine where the sections and relocs will go in the output | |
2486 | file. */ | |
2487 | reloc_size = ecoff_compute_reloc_file_positions (abfd); | |
2488 | ||
2489 | count = 1; | |
2490 | for (current = abfd->sections; | |
1abaf976 KH |
2491 | current != (asection *)NULL; |
2492 | current = current->next) | |
252b5132 RH |
2493 | { |
2494 | current->target_index = count; | |
2495 | ++count; | |
2496 | } | |
2497 | ||
2498 | if ((abfd->flags & D_PAGED) != 0) | |
b34976b6 | 2499 | text_size = _bfd_ecoff_sizeof_headers (abfd, FALSE); |
252b5132 RH |
2500 | else |
2501 | text_size = 0; | |
2502 | text_start = 0; | |
b34976b6 | 2503 | set_text_start = FALSE; |
252b5132 RH |
2504 | data_size = 0; |
2505 | data_start = 0; | |
b34976b6 | 2506 | set_data_start = FALSE; |
252b5132 RH |
2507 | bss_size = 0; |
2508 | ||
2509 | /* Write section headers to the file. */ | |
2510 | ||
2511 | /* Allocate buff big enough to hold a section header, | |
2512 | file header, or a.out header. */ | |
2513 | { | |
2514 | bfd_size_type siz; | |
2515 | siz = scnhsz; | |
2516 | if (siz < filhsz) | |
2517 | siz = filhsz; | |
2518 | if (siz < aoutsz) | |
2519 | siz = aoutsz; | |
dc810e39 | 2520 | buff = (PTR) bfd_malloc (siz); |
252b5132 RH |
2521 | if (buff == NULL) |
2522 | goto error_return; | |
2523 | } | |
2524 | ||
2525 | internal_f.f_nscns = 0; | |
2526 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
2527 | goto error_return; | |
2528 | for (current = abfd->sections; | |
2529 | current != (asection *) NULL; | |
2530 | current = current->next) | |
2531 | { | |
2532 | struct internal_scnhdr section; | |
2533 | bfd_vma vma; | |
2534 | ||
2535 | ++internal_f.f_nscns; | |
2536 | ||
2537 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2538 | ||
2539 | /* This seems to be correct for Irix 4 shared libraries. */ | |
2540 | vma = bfd_get_section_vma (abfd, current); | |
2541 | if (strcmp (current->name, _LIB) == 0) | |
2542 | section.s_vaddr = 0; | |
2543 | else | |
2544 | section.s_vaddr = vma; | |
2545 | ||
2546 | section.s_paddr = current->lma; | |
2547 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2548 | ||
2549 | /* If this section is unloadable then the scnptr will be 0. */ | |
2550 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
2551 | section.s_scnptr = 0; | |
2552 | else | |
2553 | section.s_scnptr = current->filepos; | |
2554 | section.s_relptr = current->rel_filepos; | |
2555 | ||
2556 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2557 | object file produced by the assembler is supposed to point to | |
2558 | information about how much room is required by objects of | |
2559 | various different sizes. I think this only matters if we | |
2560 | want the linker to compute the best size to use, or | |
2561 | something. I don't know what happens if the information is | |
2562 | not present. */ | |
2563 | if (strcmp (current->name, _PDATA) != 0) | |
2564 | section.s_lnnoptr = 0; | |
2565 | else | |
2566 | { | |
2567 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to | |
2568 | hold the number of entries in the section (each entry is | |
2569 | 8 bytes). We stored this in the line_filepos field in | |
2570 | ecoff_compute_section_file_positions. */ | |
2571 | section.s_lnnoptr = current->line_filepos; | |
2572 | } | |
2573 | ||
2574 | section.s_nreloc = current->reloc_count; | |
2575 | section.s_nlnno = 0; | |
2576 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
2577 | current->flags); | |
2578 | ||
2579 | if (bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff) == 0 | |
dc810e39 | 2580 | || bfd_bwrite (buff, scnhsz, abfd) != scnhsz) |
252b5132 RH |
2581 | goto error_return; |
2582 | ||
2583 | if ((section.s_flags & STYP_TEXT) != 0 | |
2584 | || ((section.s_flags & STYP_RDATA) != 0 | |
2585 | && ecoff_data (abfd)->rdata_in_text) | |
2586 | || section.s_flags == STYP_PDATA | |
2587 | || (section.s_flags & STYP_DYNAMIC) != 0 | |
2588 | || (section.s_flags & STYP_LIBLIST) != 0 | |
2589 | || (section.s_flags & STYP_RELDYN) != 0 | |
2590 | || section.s_flags == STYP_CONFLIC | |
2591 | || (section.s_flags & STYP_DYNSTR) != 0 | |
2592 | || (section.s_flags & STYP_DYNSYM) != 0 | |
2593 | || (section.s_flags & STYP_HASH) != 0 | |
2594 | || (section.s_flags & STYP_ECOFF_INIT) != 0 | |
2595 | || (section.s_flags & STYP_ECOFF_FINI) != 0 | |
2596 | || section.s_flags == STYP_RCONST) | |
2597 | { | |
2598 | text_size += bfd_get_section_size_before_reloc (current); | |
2599 | if (! set_text_start || text_start > vma) | |
2600 | { | |
2601 | text_start = vma; | |
b34976b6 | 2602 | set_text_start = TRUE; |
252b5132 RH |
2603 | } |
2604 | } | |
2605 | else if ((section.s_flags & STYP_RDATA) != 0 | |
2606 | || (section.s_flags & STYP_DATA) != 0 | |
2607 | || (section.s_flags & STYP_LITA) != 0 | |
2608 | || (section.s_flags & STYP_LIT8) != 0 | |
2609 | || (section.s_flags & STYP_LIT4) != 0 | |
2610 | || (section.s_flags & STYP_SDATA) != 0 | |
2611 | || section.s_flags == STYP_XDATA | |
2612 | || (section.s_flags & STYP_GOT) != 0) | |
2613 | { | |
2614 | data_size += bfd_get_section_size_before_reloc (current); | |
2615 | if (! set_data_start || data_start > vma) | |
2616 | { | |
2617 | data_start = vma; | |
b34976b6 | 2618 | set_data_start = TRUE; |
252b5132 RH |
2619 | } |
2620 | } | |
2621 | else if ((section.s_flags & STYP_BSS) != 0 | |
2622 | || (section.s_flags & STYP_SBSS) != 0) | |
2623 | bss_size += bfd_get_section_size_before_reloc (current); | |
2624 | else if (section.s_flags == 0 | |
2625 | || (section.s_flags & STYP_ECOFF_LIB) != 0 | |
2626 | || section.s_flags == STYP_COMMENT) | |
b0ac09d2 | 2627 | /* Do nothing. */ ; |
252b5132 RH |
2628 | else |
2629 | abort (); | |
1abaf976 | 2630 | } |
252b5132 RH |
2631 | |
2632 | /* Set up the file header. */ | |
252b5132 RH |
2633 | internal_f.f_magic = ecoff_get_magic (abfd); |
2634 | ||
2635 | /* We will NOT put a fucking timestamp in the header here. Every | |
2636 | time you put it back, I will come in and take it out again. I'm | |
2637 | sorry. This field does not belong here. We fill it with a 0 so | |
2638 | it compares the same but is not a reasonable time. -- | |
2639 | gnu@cygnus.com. */ | |
2640 | internal_f.f_timdat = 0; | |
2641 | ||
2642 | if (bfd_get_symcount (abfd) != 0) | |
2643 | { | |
2644 | /* The ECOFF f_nsyms field is not actually the number of | |
2645 | symbols, it's the size of symbolic information header. */ | |
2646 | internal_f.f_nsyms = external_hdr_size; | |
2647 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; | |
2648 | } | |
2649 | else | |
2650 | { | |
2651 | internal_f.f_nsyms = 0; | |
2652 | internal_f.f_symptr = 0; | |
2653 | } | |
2654 | ||
2655 | internal_f.f_opthdr = aoutsz; | |
2656 | ||
2657 | internal_f.f_flags = F_LNNO; | |
2658 | if (reloc_size == 0) | |
2659 | internal_f.f_flags |= F_RELFLG; | |
2660 | if (bfd_get_symcount (abfd) == 0) | |
2661 | internal_f.f_flags |= F_LSYMS; | |
2662 | if (abfd->flags & EXEC_P) | |
2663 | internal_f.f_flags |= F_EXEC; | |
2664 | ||
2665 | if (bfd_little_endian (abfd)) | |
2666 | internal_f.f_flags |= F_AR32WR; | |
2667 | else | |
2668 | internal_f.f_flags |= F_AR32W; | |
2669 | ||
2670 | /* Set up the ``optional'' header. */ | |
2671 | if ((abfd->flags & D_PAGED) != 0) | |
2672 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
2673 | else | |
2674 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
2675 | ||
2676 | /* FIXME: Is this really correct? */ | |
2677 | internal_a.vstamp = symhdr->vstamp; | |
2678 | ||
2679 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
2680 | FIXME: Is this true on other platforms? */ | |
2681 | if ((abfd->flags & D_PAGED) != 0) | |
2682 | { | |
2683 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
2684 | internal_a.text_start = text_start &~ (round - 1); | |
2685 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
2686 | internal_a.data_start = data_start &~ (round - 1); | |
2687 | } | |
2688 | else | |
2689 | { | |
2690 | internal_a.tsize = text_size; | |
2691 | internal_a.text_start = text_start; | |
2692 | internal_a.dsize = data_size; | |
2693 | internal_a.data_start = data_start; | |
2694 | } | |
2695 | ||
2696 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
2697 | are at the end of the data section. The bsize field in the | |
2698 | optional header records how many bss bytes are required beyond | |
2699 | those in the data section. The value is not rounded to a page | |
2700 | boundary. */ | |
2701 | if (bss_size < internal_a.dsize - data_size) | |
2702 | bss_size = 0; | |
2703 | else | |
2704 | bss_size -= internal_a.dsize - data_size; | |
2705 | internal_a.bsize = bss_size; | |
2706 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
2707 | ||
2708 | internal_a.entry = bfd_get_start_address (abfd); | |
2709 | ||
2710 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
2711 | ||
2712 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
2713 | internal_a.fprmask = ecoff_data (abfd)->fprmask; | |
2714 | for (i = 0; i < 4; i++) | |
2715 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
2716 | ||
2717 | /* Let the backend adjust the headers if necessary. */ | |
2718 | if (backend->adjust_headers) | |
2719 | { | |
2720 | if (! (*backend->adjust_headers) (abfd, &internal_f, &internal_a)) | |
2721 | goto error_return; | |
2722 | } | |
2723 | ||
2724 | /* Write out the file header and the optional header. */ | |
252b5132 RH |
2725 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
2726 | goto error_return; | |
2727 | ||
2728 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); | |
dc810e39 | 2729 | if (bfd_bwrite (buff, filhsz, abfd) != filhsz) |
252b5132 RH |
2730 | goto error_return; |
2731 | ||
2732 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); | |
dc810e39 | 2733 | if (bfd_bwrite (buff, aoutsz, abfd) != aoutsz) |
252b5132 RH |
2734 | goto error_return; |
2735 | ||
2736 | /* Build the external symbol information. This must be done before | |
2737 | writing out the relocs so that we know the symbol indices. We | |
2738 | don't do this if this BFD was created by the backend linker, | |
2739 | since it will have already handled the symbols and relocs. */ | |
2740 | if (! ecoff_data (abfd)->linker) | |
2741 | { | |
2742 | symhdr->iextMax = 0; | |
2743 | symhdr->issExtMax = 0; | |
2744 | debug->external_ext = debug->external_ext_end = NULL; | |
2745 | debug->ssext = debug->ssext_end = NULL; | |
82e51918 AM |
2746 | if (! bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, |
2747 | (abfd->flags & EXEC_P) == 0, | |
2748 | ecoff_get_extr, ecoff_set_index)) | |
252b5132 RH |
2749 | goto error_return; |
2750 | ||
2751 | /* Write out the relocs. */ | |
2752 | for (current = abfd->sections; | |
2753 | current != (asection *) NULL; | |
2754 | current = current->next) | |
2755 | { | |
2756 | arelent **reloc_ptr_ptr; | |
2757 | arelent **reloc_end; | |
2758 | char *out_ptr; | |
dc810e39 | 2759 | bfd_size_type amt; |
252b5132 RH |
2760 | |
2761 | if (current->reloc_count == 0) | |
2762 | continue; | |
2763 | ||
dc810e39 AM |
2764 | amt = current->reloc_count * external_reloc_size; |
2765 | reloc_buff = bfd_alloc (abfd, amt); | |
252b5132 RH |
2766 | if (reloc_buff == NULL) |
2767 | goto error_return; | |
2768 | ||
2769 | reloc_ptr_ptr = current->orelocation; | |
2770 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
2771 | out_ptr = (char *) reloc_buff; | |
2772 | for (; | |
2773 | reloc_ptr_ptr < reloc_end; | |
2774 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
2775 | { | |
2776 | arelent *reloc; | |
2777 | asymbol *sym; | |
2778 | struct internal_reloc in; | |
1abaf976 | 2779 | |
252b5132 RH |
2780 | memset ((PTR) &in, 0, sizeof in); |
2781 | ||
2782 | reloc = *reloc_ptr_ptr; | |
2783 | sym = *reloc->sym_ptr_ptr; | |
2784 | ||
2785 | in.r_vaddr = (reloc->address | |
2786 | + bfd_get_section_vma (abfd, current)); | |
2787 | in.r_type = reloc->howto->type; | |
2788 | ||
2789 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
2790 | { | |
2791 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
2792 | in.r_extern = 1; | |
2793 | } | |
2794 | else | |
2795 | { | |
dc810e39 | 2796 | const char *name; |
252b5132 RH |
2797 | |
2798 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
2799 | if (strcmp (name, ".text") == 0) | |
2800 | in.r_symndx = RELOC_SECTION_TEXT; | |
2801 | else if (strcmp (name, ".rdata") == 0) | |
2802 | in.r_symndx = RELOC_SECTION_RDATA; | |
2803 | else if (strcmp (name, ".data") == 0) | |
2804 | in.r_symndx = RELOC_SECTION_DATA; | |
2805 | else if (strcmp (name, ".sdata") == 0) | |
2806 | in.r_symndx = RELOC_SECTION_SDATA; | |
2807 | else if (strcmp (name, ".sbss") == 0) | |
2808 | in.r_symndx = RELOC_SECTION_SBSS; | |
2809 | else if (strcmp (name, ".bss") == 0) | |
2810 | in.r_symndx = RELOC_SECTION_BSS; | |
2811 | else if (strcmp (name, ".init") == 0) | |
2812 | in.r_symndx = RELOC_SECTION_INIT; | |
2813 | else if (strcmp (name, ".lit8") == 0) | |
2814 | in.r_symndx = RELOC_SECTION_LIT8; | |
2815 | else if (strcmp (name, ".lit4") == 0) | |
2816 | in.r_symndx = RELOC_SECTION_LIT4; | |
2817 | else if (strcmp (name, ".xdata") == 0) | |
2818 | in.r_symndx = RELOC_SECTION_XDATA; | |
2819 | else if (strcmp (name, ".pdata") == 0) | |
2820 | in.r_symndx = RELOC_SECTION_PDATA; | |
2821 | else if (strcmp (name, ".fini") == 0) | |
2822 | in.r_symndx = RELOC_SECTION_FINI; | |
2823 | else if (strcmp (name, ".lita") == 0) | |
2824 | in.r_symndx = RELOC_SECTION_LITA; | |
2825 | else if (strcmp (name, "*ABS*") == 0) | |
2826 | in.r_symndx = RELOC_SECTION_ABS; | |
2827 | else if (strcmp (name, ".rconst") == 0) | |
2828 | in.r_symndx = RELOC_SECTION_RCONST; | |
2829 | else | |
2830 | abort (); | |
2831 | in.r_extern = 0; | |
2832 | } | |
2833 | ||
2834 | (*adjust_reloc_out) (abfd, reloc, &in); | |
2835 | ||
2836 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
2837 | } | |
2838 | ||
2839 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
2840 | goto error_return; | |
dc810e39 AM |
2841 | amt = current->reloc_count * external_reloc_size; |
2842 | if (bfd_bwrite (reloc_buff, amt, abfd) != amt) | |
252b5132 RH |
2843 | goto error_return; |
2844 | bfd_release (abfd, reloc_buff); | |
2845 | reloc_buff = NULL; | |
2846 | } | |
2847 | ||
2848 | /* Write out the symbolic debugging information. */ | |
2849 | if (bfd_get_symcount (abfd) > 0) | |
2850 | { | |
2851 | /* Write out the debugging information. */ | |
82e51918 AM |
2852 | if (! bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, |
2853 | ecoff_data (abfd)->sym_filepos)) | |
252b5132 RH |
2854 | goto error_return; |
2855 | } | |
2856 | } | |
2857 | ||
2858 | /* The .bss section of a demand paged executable must receive an | |
2859 | entire page. If there are symbols, the symbols will start on the | |
2860 | next page. If there are no symbols, we must fill out the page by | |
2861 | hand. */ | |
2862 | if (bfd_get_symcount (abfd) == 0 | |
2863 | && (abfd->flags & EXEC_P) != 0 | |
2864 | && (abfd->flags & D_PAGED) != 0) | |
2865 | { | |
2866 | char c; | |
2867 | ||
2868 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2869 | SEEK_SET) != 0) | |
2870 | goto error_return; | |
dc810e39 | 2871 | if (bfd_bread (&c, (bfd_size_type) 1, abfd) == 0) |
252b5132 RH |
2872 | c = 0; |
2873 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2874 | SEEK_SET) != 0) | |
2875 | goto error_return; | |
dc810e39 | 2876 | if (bfd_bwrite (&c, (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
2877 | goto error_return; |
2878 | } | |
2879 | ||
2880 | if (reloc_buff != NULL) | |
2881 | bfd_release (abfd, reloc_buff); | |
2882 | if (buff != NULL) | |
2883 | free (buff); | |
b34976b6 | 2884 | return TRUE; |
252b5132 RH |
2885 | error_return: |
2886 | if (reloc_buff != NULL) | |
2887 | bfd_release (abfd, reloc_buff); | |
2888 | if (buff != NULL) | |
2889 | free (buff); | |
b34976b6 | 2890 | return FALSE; |
252b5132 RH |
2891 | } |
2892 | \f | |
2893 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
2894 | archive header (armap). The byte ordering of the armap and the | |
2895 | contents are encoded in the name of the armap itself. At least for | |
2896 | now, we only support archives with the same byte ordering in the | |
2897 | armap and the contents. | |
2898 | ||
2899 | The first four bytes in the armap are the number of symbol | |
2900 | definitions. This is always a power of two. | |
2901 | ||
2902 | This is followed by the symbol definitions. Each symbol definition | |
2903 | occupies 8 bytes. The first four bytes are the offset from the | |
2904 | start of the armap strings to the null-terminated string naming | |
2905 | this symbol. The second four bytes are the file offset to the | |
2906 | archive member which defines this symbol. If the second four bytes | |
2907 | are 0, then this is not actually a symbol definition, and it should | |
2908 | be ignored. | |
2909 | ||
2910 | The symbols are hashed into the armap with a closed hashing scheme. | |
2911 | See the functions below for the details of the algorithm. | |
2912 | ||
2913 | After the symbol definitions comes four bytes holding the size of | |
2914 | the string table, followed by the string table itself. */ | |
2915 | ||
2916 | /* The name of an archive headers looks like this: | |
2917 | __________E[BL]E[BL]_ (with a trailing space). | |
2918 | The trailing space is changed to an X if the archive is changed to | |
2919 | indicate that the armap is out of date. | |
2920 | ||
2921 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
2922 | ||
2923 | #define ARMAP_BIG_ENDIAN 'B' | |
2924 | #define ARMAP_LITTLE_ENDIAN 'L' | |
2925 | #define ARMAP_MARKER 'E' | |
2926 | #define ARMAP_START_LENGTH 10 | |
2927 | #define ARMAP_HEADER_MARKER_INDEX 10 | |
2928 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
2929 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
2930 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
2931 | #define ARMAP_END_INDEX 14 | |
2932 | #define ARMAP_END "_ " | |
2933 | ||
2934 | /* This is a magic number used in the hashing algorithm. */ | |
2935 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
2936 | ||
2937 | /* This returns the hash value to use for a string. It also sets | |
2938 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
2939 | is the number of entries in the hash table, and HLOG is the log | |
2940 | base 2 of SIZE. */ | |
2941 | ||
2942 | static unsigned int | |
2943 | ecoff_armap_hash (s, rehash, size, hlog) | |
dc810e39 | 2944 | const char *s; |
252b5132 RH |
2945 | unsigned int *rehash; |
2946 | unsigned int size; | |
2947 | unsigned int hlog; | |
2948 | { | |
2949 | unsigned int hash; | |
2950 | ||
2951 | if (hlog == 0) | |
2952 | return 0; | |
2953 | hash = *s++; | |
2954 | while (*s != '\0') | |
2955 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
2956 | hash *= ARMAP_HASH_MAGIC; | |
2957 | *rehash = (hash & (size - 1)) | 1; | |
2958 | return hash >> (32 - hlog); | |
2959 | } | |
2960 | ||
2961 | /* Read in the armap. */ | |
2962 | ||
b34976b6 | 2963 | bfd_boolean |
252b5132 RH |
2964 | _bfd_ecoff_slurp_armap (abfd) |
2965 | bfd *abfd; | |
2966 | { | |
2967 | char nextname[17]; | |
2968 | unsigned int i; | |
2969 | struct areltdata *mapdata; | |
2970 | bfd_size_type parsed_size; | |
2971 | char *raw_armap; | |
2972 | struct artdata *ardata; | |
2973 | unsigned int count; | |
2974 | char *raw_ptr; | |
2975 | struct symdef *symdef_ptr; | |
2976 | char *stringbase; | |
dc810e39 | 2977 | bfd_size_type amt; |
1abaf976 | 2978 | |
252b5132 | 2979 | /* Get the name of the first element. */ |
dc810e39 | 2980 | i = bfd_bread ((PTR) nextname, (bfd_size_type) 16, abfd); |
252b5132 | 2981 | if (i == 0) |
b34976b6 | 2982 | return TRUE; |
252b5132 | 2983 | if (i != 16) |
b34976b6 | 2984 | return FALSE; |
252b5132 RH |
2985 | |
2986 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) | |
b34976b6 | 2987 | return FALSE; |
252b5132 RH |
2988 | |
2989 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a | |
2990 | standard COFF armap. We could move the ECOFF armap stuff into | |
2991 | bfd_slurp_armap, but that seems inappropriate since no other | |
2992 | target uses this format. Instead, we check directly for a COFF | |
2993 | armap. */ | |
2994 | if (strncmp (nextname, "/ ", 16) == 0) | |
2995 | return bfd_slurp_armap (abfd); | |
2996 | ||
2997 | /* See if the first element is an armap. */ | |
2998 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, | |
2999 | ARMAP_START_LENGTH) != 0 | |
3000 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER | |
3001 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3002 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3003 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3004 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3005 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3006 | || strncmp (nextname + ARMAP_END_INDEX, | |
3007 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3008 | { | |
b34976b6 AM |
3009 | bfd_has_map (abfd) = FALSE; |
3010 | return TRUE; | |
252b5132 RH |
3011 | } |
3012 | ||
3013 | /* Make sure we have the right byte ordering. */ | |
3014 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3015 | ^ (bfd_header_big_endian (abfd))) | |
3016 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3017 | ^ (bfd_big_endian (abfd)))) | |
3018 | { | |
3019 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 3020 | return FALSE; |
252b5132 RH |
3021 | } |
3022 | ||
3023 | /* Read in the armap. */ | |
3024 | ardata = bfd_ardata (abfd); | |
3025 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); | |
3026 | if (mapdata == (struct areltdata *) NULL) | |
b34976b6 | 3027 | return FALSE; |
252b5132 RH |
3028 | parsed_size = mapdata->parsed_size; |
3029 | bfd_release (abfd, (PTR) mapdata); | |
1abaf976 | 3030 | |
252b5132 RH |
3031 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); |
3032 | if (raw_armap == (char *) NULL) | |
b34976b6 | 3033 | return FALSE; |
1abaf976 | 3034 | |
dc810e39 | 3035 | if (bfd_bread ((PTR) raw_armap, parsed_size, abfd) != parsed_size) |
252b5132 RH |
3036 | { |
3037 | if (bfd_get_error () != bfd_error_system_call) | |
3038 | bfd_set_error (bfd_error_malformed_archive); | |
3039 | bfd_release (abfd, (PTR) raw_armap); | |
b34976b6 | 3040 | return FALSE; |
252b5132 | 3041 | } |
1abaf976 | 3042 | |
252b5132 RH |
3043 | ardata->tdata = (PTR) raw_armap; |
3044 | ||
dc810e39 | 3045 | count = H_GET_32 (abfd, raw_armap); |
252b5132 RH |
3046 | |
3047 | ardata->symdef_count = 0; | |
3048 | ardata->cache = (struct ar_cache *) NULL; | |
3049 | ||
3050 | /* This code used to overlay the symdefs over the raw archive data, | |
3051 | but that doesn't work on a 64 bit host. */ | |
252b5132 RH |
3052 | stringbase = raw_armap + count * 8 + 8; |
3053 | ||
3054 | #ifdef CHECK_ARMAP_HASH | |
3055 | { | |
3056 | unsigned int hlog; | |
3057 | ||
3058 | /* Double check that I have the hashing algorithm right by making | |
3059 | sure that every symbol can be looked up successfully. */ | |
3060 | hlog = 0; | |
3061 | for (i = 1; i < count; i <<= 1) | |
3062 | hlog++; | |
3063 | BFD_ASSERT (i == count); | |
3064 | ||
3065 | raw_ptr = raw_armap + 4; | |
3066 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3067 | { | |
3068 | unsigned int name_offset, file_offset; | |
3069 | unsigned int hash, rehash, srch; | |
1abaf976 | 3070 | |
dc810e39 AM |
3071 | name_offset = H_GET_32 (abfd, raw_ptr); |
3072 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); | |
252b5132 RH |
3073 | if (file_offset == 0) |
3074 | continue; | |
3075 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3076 | hlog); | |
3077 | if (hash == i) | |
3078 | continue; | |
3079 | ||
3080 | /* See if we can rehash to this location. */ | |
3081 | for (srch = (hash + rehash) & (count - 1); | |
3082 | srch != hash && srch != i; | |
3083 | srch = (srch + rehash) & (count - 1)) | |
dc810e39 | 3084 | BFD_ASSERT (H_GET_32 (abfd, (raw_armap + 8 + srch * 8)) != 0); |
252b5132 RH |
3085 | BFD_ASSERT (srch == i); |
3086 | } | |
3087 | } | |
3088 | ||
3089 | #endif /* CHECK_ARMAP_HASH */ | |
3090 | ||
3091 | raw_ptr = raw_armap + 4; | |
3092 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dc810e39 | 3093 | if (H_GET_32 (abfd, (raw_ptr + 4)) != 0) |
252b5132 RH |
3094 | ++ardata->symdef_count; |
3095 | ||
dc810e39 AM |
3096 | amt = ardata->symdef_count; |
3097 | amt *= sizeof (struct symdef); | |
3098 | symdef_ptr = (struct symdef *) bfd_alloc (abfd, amt); | |
252b5132 | 3099 | if (!symdef_ptr) |
b34976b6 | 3100 | return FALSE; |
252b5132 RH |
3101 | |
3102 | ardata->symdefs = (carsym *) symdef_ptr; | |
3103 | ||
3104 | raw_ptr = raw_armap + 4; | |
3105 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3106 | { | |
3107 | unsigned int name_offset, file_offset; | |
3108 | ||
dc810e39 | 3109 | file_offset = H_GET_32 (abfd, (raw_ptr + 4)); |
252b5132 RH |
3110 | if (file_offset == 0) |
3111 | continue; | |
dc810e39 | 3112 | name_offset = H_GET_32 (abfd, raw_ptr); |
252b5132 RH |
3113 | symdef_ptr->s.name = stringbase + name_offset; |
3114 | symdef_ptr->file_offset = file_offset; | |
3115 | ++symdef_ptr; | |
3116 | } | |
3117 | ||
3118 | ardata->first_file_filepos = bfd_tell (abfd); | |
3119 | /* Pad to an even boundary. */ | |
3120 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3121 | ||
b34976b6 | 3122 | bfd_has_map (abfd) = TRUE; |
252b5132 | 3123 | |
b34976b6 | 3124 | return TRUE; |
252b5132 RH |
3125 | } |
3126 | ||
3127 | /* Write out an armap. */ | |
3128 | ||
b34976b6 | 3129 | bfd_boolean |
252b5132 RH |
3130 | _bfd_ecoff_write_armap (abfd, elength, map, orl_count, stridx) |
3131 | bfd *abfd; | |
3132 | unsigned int elength; | |
3133 | struct orl *map; | |
3134 | unsigned int orl_count; | |
3135 | int stridx; | |
3136 | { | |
3137 | unsigned int hashsize, hashlog; | |
dc810e39 | 3138 | bfd_size_type symdefsize; |
252b5132 RH |
3139 | int padit; |
3140 | unsigned int stringsize; | |
3141 | unsigned int mapsize; | |
3142 | file_ptr firstreal; | |
3143 | struct ar_hdr hdr; | |
3144 | struct stat statbuf; | |
3145 | unsigned int i; | |
3146 | bfd_byte temp[4]; | |
3147 | bfd_byte *hashtable; | |
3148 | bfd *current; | |
3149 | bfd *last_elt; | |
3150 | ||
3151 | /* Ultrix appears to use as a hash table size the least power of two | |
3152 | greater than twice the number of entries. */ | |
3153 | for (hashlog = 0; ((unsigned int) 1 << hashlog) <= 2 * orl_count; hashlog++) | |
3154 | ; | |
3155 | hashsize = 1 << hashlog; | |
3156 | ||
3157 | symdefsize = hashsize * 8; | |
3158 | padit = stridx % 2; | |
3159 | stringsize = stridx + padit; | |
3160 | ||
1abaf976 | 3161 | /* Include 8 bytes to store symdefsize and stringsize in output. */ |
252b5132 RH |
3162 | mapsize = symdefsize + stringsize + 8; |
3163 | ||
3164 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3165 | ||
3166 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3167 | ||
3168 | /* Work out the ECOFF armap name. */ | |
3169 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); | |
3170 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; | |
3171 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3172 | (bfd_header_big_endian (abfd) | |
3173 | ? ARMAP_BIG_ENDIAN | |
3174 | : ARMAP_LITTLE_ENDIAN); | |
3175 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3176 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3177 | bfd_big_endian (abfd) ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3178 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3179 | ||
3180 | /* Write the timestamp of the archive header to be just a little bit | |
3181 | later than the timestamp of the file, otherwise the linker will | |
3182 | complain that the index is out of date. Actually, the Ultrix | |
3183 | linker just checks the archive name; the GNU linker may check the | |
3184 | date. */ | |
3185 | stat (abfd->filename, &statbuf); | |
3186 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3187 | ||
3188 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3189 | armap. */ | |
3190 | hdr.ar_uid[0] = '0'; | |
3191 | hdr.ar_gid[0] = '0'; | |
ec0ef80e | 3192 | #if 0 |
252b5132 | 3193 | hdr.ar_mode[0] = '0'; |
ec0ef80e | 3194 | #else |
1abaf976 | 3195 | /* Building gcc ends up extracting the armap as a file - twice. */ |
ec0ef80e DD |
3196 | hdr.ar_mode[0] = '6'; |
3197 | hdr.ar_mode[1] = '4'; | |
3198 | hdr.ar_mode[2] = '4'; | |
3199 | #endif | |
252b5132 RH |
3200 | |
3201 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3202 | ||
3203 | hdr.ar_fmag[0] = '`'; | |
3204 | hdr.ar_fmag[1] = '\012'; | |
3205 | ||
3206 | /* Turn all null bytes in the header into spaces. */ | |
3207 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
1abaf976 KH |
3208 | if (((char *) (&hdr))[i] == '\0') |
3209 | (((char *) (&hdr))[i]) = ' '; | |
252b5132 | 3210 | |
dc810e39 | 3211 | if (bfd_bwrite ((PTR) &hdr, (bfd_size_type) sizeof (struct ar_hdr), abfd) |
252b5132 | 3212 | != sizeof (struct ar_hdr)) |
b34976b6 | 3213 | return FALSE; |
252b5132 | 3214 | |
dc810e39 AM |
3215 | H_PUT_32 (abfd, hashsize, temp); |
3216 | if (bfd_bwrite ((PTR) temp, (bfd_size_type) 4, abfd) != 4) | |
b34976b6 | 3217 | return FALSE; |
1abaf976 | 3218 | |
252b5132 RH |
3219 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); |
3220 | if (!hashtable) | |
b34976b6 | 3221 | return FALSE; |
252b5132 RH |
3222 | |
3223 | current = abfd->archive_head; | |
3224 | last_elt = current; | |
3225 | for (i = 0; i < orl_count; i++) | |
3226 | { | |
3227 | unsigned int hash, rehash; | |
3228 | ||
3229 | /* Advance firstreal to the file position of this archive | |
3230 | element. */ | |
dc810e39 | 3231 | if (map[i].u.abfd != last_elt) |
252b5132 RH |
3232 | { |
3233 | do | |
3234 | { | |
3235 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3236 | firstreal += firstreal % 2; | |
3237 | current = current->next; | |
3238 | } | |
dc810e39 | 3239 | while (current != map[i].u.abfd); |
252b5132 RH |
3240 | } |
3241 | ||
3242 | last_elt = current; | |
3243 | ||
3244 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
dc810e39 | 3245 | if (H_GET_32 (abfd, (hashtable + (hash * 8) + 4)) != 0) |
252b5132 RH |
3246 | { |
3247 | unsigned int srch; | |
3248 | ||
3249 | /* The desired slot is already taken. */ | |
3250 | for (srch = (hash + rehash) & (hashsize - 1); | |
3251 | srch != hash; | |
3252 | srch = (srch + rehash) & (hashsize - 1)) | |
dc810e39 | 3253 | if (H_GET_32 (abfd, (hashtable + (srch * 8) + 4)) == 0) |
252b5132 RH |
3254 | break; |
3255 | ||
3256 | BFD_ASSERT (srch != hash); | |
3257 | ||
3258 | hash = srch; | |
3259 | } | |
1abaf976 | 3260 | |
dc810e39 AM |
3261 | H_PUT_32 (abfd, map[i].namidx, (hashtable + hash * 8)); |
3262 | H_PUT_32 (abfd, firstreal, (hashtable + hash * 8 + 4)); | |
252b5132 RH |
3263 | } |
3264 | ||
dc810e39 | 3265 | if (bfd_bwrite ((PTR) hashtable, symdefsize, abfd) != symdefsize) |
b34976b6 | 3266 | return FALSE; |
252b5132 RH |
3267 | |
3268 | bfd_release (abfd, hashtable); | |
3269 | ||
3270 | /* Now write the strings. */ | |
dc810e39 AM |
3271 | H_PUT_32 (abfd, stringsize, temp); |
3272 | if (bfd_bwrite ((PTR) temp, (bfd_size_type) 4, abfd) != 4) | |
b34976b6 | 3273 | return FALSE; |
252b5132 RH |
3274 | for (i = 0; i < orl_count; i++) |
3275 | { | |
3276 | bfd_size_type len; | |
3277 | ||
3278 | len = strlen (*map[i].name) + 1; | |
dc810e39 | 3279 | if (bfd_bwrite ((PTR) (*map[i].name), len, abfd) != len) |
b34976b6 | 3280 | return FALSE; |
252b5132 RH |
3281 | } |
3282 | ||
3283 | /* The spec sez this should be a newline. But in order to be | |
3284 | bug-compatible for DECstation ar we use a null. */ | |
3285 | if (padit) | |
3286 | { | |
dc810e39 | 3287 | if (bfd_bwrite ("", (bfd_size_type) 1, abfd) != 1) |
b34976b6 | 3288 | return FALSE; |
252b5132 RH |
3289 | } |
3290 | ||
b34976b6 | 3291 | return TRUE; |
252b5132 RH |
3292 | } |
3293 | ||
3294 | /* See whether this BFD is an archive. If it is, read in the armap | |
3295 | and the extended name table. */ | |
3296 | ||
3297 | const bfd_target * | |
3298 | _bfd_ecoff_archive_p (abfd) | |
3299 | bfd *abfd; | |
3300 | { | |
3301 | struct artdata *tdata_hold; | |
3302 | char armag[SARMAG + 1]; | |
dc810e39 | 3303 | bfd_size_type amt; |
252b5132 | 3304 | |
dc810e39 | 3305 | if (bfd_bread ((PTR) armag, (bfd_size_type) SARMAG, abfd) != SARMAG) |
252b5132 RH |
3306 | { |
3307 | if (bfd_get_error () != bfd_error_system_call) | |
3308 | bfd_set_error (bfd_error_wrong_format); | |
3309 | return (const bfd_target *) NULL; | |
3310 | } | |
3311 | ||
3312 | if (strncmp (armag, ARMAG, SARMAG) != 0) | |
3313 | { | |
3314 | bfd_set_error (bfd_error_wrong_format); | |
3315 | return NULL; | |
3316 | } | |
3317 | ||
487e54f2 | 3318 | tdata_hold = bfd_ardata (abfd); |
252b5132 | 3319 | |
487e54f2 AM |
3320 | amt = sizeof (struct artdata); |
3321 | bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
3322 | if (bfd_ardata (abfd) == (struct artdata *) NULL) |
3323 | { | |
487e54f2 | 3324 | bfd_ardata (abfd) = tdata_hold; |
252b5132 RH |
3325 | return (const bfd_target *) NULL; |
3326 | } | |
3327 | ||
3328 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3329 | bfd_ardata (abfd)->cache = NULL; | |
3330 | bfd_ardata (abfd)->archive_head = NULL; | |
3331 | bfd_ardata (abfd)->symdefs = NULL; | |
3332 | bfd_ardata (abfd)->extended_names = NULL; | |
3333 | bfd_ardata (abfd)->tdata = NULL; | |
1abaf976 | 3334 | |
82e51918 AM |
3335 | if (! _bfd_ecoff_slurp_armap (abfd) |
3336 | || ! _bfd_ecoff_slurp_extended_name_table (abfd)) | |
252b5132 RH |
3337 | { |
3338 | bfd_release (abfd, bfd_ardata (abfd)); | |
487e54f2 | 3339 | bfd_ardata (abfd) = tdata_hold; |
252b5132 RH |
3340 | return (const bfd_target *) NULL; |
3341 | } | |
1abaf976 | 3342 | |
252b5132 RH |
3343 | if (bfd_has_map (abfd)) |
3344 | { | |
3345 | bfd *first; | |
3346 | ||
3347 | /* This archive has a map, so we may presume that the contents | |
3348 | are object files. Make sure that if the first file in the | |
3349 | archive can be recognized as an object file, it is for this | |
3350 | target. If not, assume that this is the wrong format. If | |
3351 | the first file is not an object file, somebody is doing | |
3352 | something weird, and we permit it so that ar -t will work. */ | |
3353 | ||
3354 | first = bfd_openr_next_archived_file (abfd, (bfd *) NULL); | |
3355 | if (first != NULL) | |
3356 | { | |
b34976b6 | 3357 | first->target_defaulted = FALSE; |
252b5132 RH |
3358 | if (bfd_check_format (first, bfd_object) |
3359 | && first->xvec != abfd->xvec) | |
3360 | { | |
487e54f2 AM |
3361 | #if 0 |
3362 | /* We ought to close `first' here, but we can't, because | |
3363 | we have no way to remove it from the archive cache. | |
3364 | It's close to impossible to figure out when we can | |
3365 | release bfd_ardata. FIXME. */ | |
252b5132 RH |
3366 | (void) bfd_close (first); |
3367 | bfd_release (abfd, bfd_ardata (abfd)); | |
487e54f2 AM |
3368 | #endif |
3369 | bfd_set_error (bfd_error_wrong_object_format); | |
3370 | bfd_ardata (abfd) = tdata_hold; | |
252b5132 RH |
3371 | return NULL; |
3372 | } | |
487e54f2 | 3373 | /* And we ought to close `first' here too. */ |
252b5132 RH |
3374 | } |
3375 | } | |
3376 | ||
3377 | return abfd->xvec; | |
3378 | } | |
3379 | \f | |
3380 | /* ECOFF linker code. */ | |
3381 | ||
3382 | static struct bfd_hash_entry *ecoff_link_hash_newfunc | |
3383 | PARAMS ((struct bfd_hash_entry *entry, | |
3384 | struct bfd_hash_table *table, | |
3385 | const char *string)); | |
b34976b6 | 3386 | static bfd_boolean ecoff_link_add_archive_symbols |
252b5132 | 3387 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 AM |
3388 | static bfd_boolean ecoff_link_check_archive_element |
3389 | PARAMS ((bfd *, struct bfd_link_info *, bfd_boolean *pneeded)); | |
3390 | static bfd_boolean ecoff_link_add_object_symbols | |
252b5132 | 3391 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 3392 | static bfd_boolean ecoff_link_add_externals |
252b5132 RH |
3393 | PARAMS ((bfd *, struct bfd_link_info *, PTR, char *)); |
3394 | ||
3395 | /* Routine to create an entry in an ECOFF link hash table. */ | |
3396 | ||
3397 | static struct bfd_hash_entry * | |
3398 | ecoff_link_hash_newfunc (entry, table, string) | |
3399 | struct bfd_hash_entry *entry; | |
3400 | struct bfd_hash_table *table; | |
3401 | const char *string; | |
3402 | { | |
3403 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; | |
3404 | ||
3405 | /* Allocate the structure if it has not already been allocated by a | |
3406 | subclass. */ | |
3407 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3408 | ret = ((struct ecoff_link_hash_entry *) | |
3409 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); | |
3410 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3411 | return NULL; | |
3412 | ||
3413 | /* Call the allocation method of the superclass. */ | |
3414 | ret = ((struct ecoff_link_hash_entry *) | |
3415 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3416 | table, string)); | |
3417 | ||
3418 | if (ret) | |
3419 | { | |
3420 | /* Set local fields. */ | |
3421 | ret->indx = -1; | |
3422 | ret->abfd = NULL; | |
3423 | ret->written = 0; | |
3424 | ret->small = 0; | |
3425 | } | |
3426 | memset ((PTR) &ret->esym, 0, sizeof ret->esym); | |
3427 | ||
3428 | return (struct bfd_hash_entry *) ret; | |
3429 | } | |
3430 | ||
3431 | /* Create an ECOFF link hash table. */ | |
3432 | ||
3433 | struct bfd_link_hash_table * | |
3434 | _bfd_ecoff_bfd_link_hash_table_create (abfd) | |
3435 | bfd *abfd; | |
3436 | { | |
3437 | struct ecoff_link_hash_table *ret; | |
dc810e39 | 3438 | bfd_size_type amt = sizeof (struct ecoff_link_hash_table); |
252b5132 | 3439 | |
e2d34d7d | 3440 | ret = (struct ecoff_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
3441 | if (ret == NULL) |
3442 | return NULL; | |
3443 | if (! _bfd_link_hash_table_init (&ret->root, abfd, | |
3444 | ecoff_link_hash_newfunc)) | |
3445 | { | |
3446 | free (ret); | |
3447 | return (struct bfd_link_hash_table *) NULL; | |
3448 | } | |
3449 | return &ret->root; | |
3450 | } | |
3451 | ||
3452 | /* Look up an entry in an ECOFF link hash table. */ | |
3453 | ||
3454 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ | |
3455 | ((struct ecoff_link_hash_entry *) \ | |
3456 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) | |
3457 | ||
3458 | /* Traverse an ECOFF link hash table. */ | |
3459 | ||
3460 | #define ecoff_link_hash_traverse(table, func, info) \ | |
3461 | (bfd_link_hash_traverse \ | |
3462 | (&(table)->root, \ | |
b34976b6 | 3463 | (bfd_boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ |
252b5132 RH |
3464 | (info))) |
3465 | ||
3466 | /* Get the ECOFF link hash table from the info structure. This is | |
3467 | just a cast. */ | |
3468 | ||
3469 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) | |
3470 | ||
3471 | /* Given an ECOFF BFD, add symbols to the global hash table as | |
3472 | appropriate. */ | |
3473 | ||
b34976b6 | 3474 | bfd_boolean |
252b5132 RH |
3475 | _bfd_ecoff_bfd_link_add_symbols (abfd, info) |
3476 | bfd *abfd; | |
3477 | struct bfd_link_info *info; | |
3478 | { | |
3479 | switch (bfd_get_format (abfd)) | |
3480 | { | |
3481 | case bfd_object: | |
3482 | return ecoff_link_add_object_symbols (abfd, info); | |
3483 | case bfd_archive: | |
3484 | return ecoff_link_add_archive_symbols (abfd, info); | |
3485 | default: | |
3486 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 3487 | return FALSE; |
252b5132 RH |
3488 | } |
3489 | } | |
3490 | ||
3491 | /* Add the symbols from an archive file to the global hash table. | |
3492 | This looks through the undefined symbols, looks each one up in the | |
3493 | archive hash table, and adds any associated object file. We do not | |
3494 | use _bfd_generic_link_add_archive_symbols because ECOFF archives | |
3495 | already have a hash table, so there is no reason to construct | |
3496 | another one. */ | |
3497 | ||
b34976b6 | 3498 | static bfd_boolean |
252b5132 RH |
3499 | ecoff_link_add_archive_symbols (abfd, info) |
3500 | bfd *abfd; | |
3501 | struct bfd_link_info *info; | |
3502 | { | |
3503 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3504 | const bfd_byte *raw_armap; | |
3505 | struct bfd_link_hash_entry **pundef; | |
3506 | unsigned int armap_count; | |
3507 | unsigned int armap_log; | |
3508 | unsigned int i; | |
3509 | const bfd_byte *hashtable; | |
3510 | const char *stringbase; | |
3511 | ||
3512 | if (! bfd_has_map (abfd)) | |
3513 | { | |
3514 | /* An empty archive is a special case. */ | |
3515 | if (bfd_openr_next_archived_file (abfd, (bfd *) NULL) == NULL) | |
b34976b6 | 3516 | return TRUE; |
252b5132 | 3517 | bfd_set_error (bfd_error_no_armap); |
b34976b6 | 3518 | return FALSE; |
252b5132 RH |
3519 | } |
3520 | ||
3521 | /* If we don't have any raw data for this archive, as can happen on | |
3522 | Irix 4.0.5F, we call the generic routine. | |
3523 | FIXME: We should be more clever about this, since someday tdata | |
3524 | may get to something for a generic archive. */ | |
3525 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; | |
3526 | if (raw_armap == (bfd_byte *) NULL) | |
3527 | return (_bfd_generic_link_add_archive_symbols | |
3528 | (abfd, info, ecoff_link_check_archive_element)); | |
3529 | ||
dc810e39 | 3530 | armap_count = H_GET_32 (abfd, raw_armap); |
252b5132 RH |
3531 | |
3532 | armap_log = 0; | |
3533 | for (i = 1; i < armap_count; i <<= 1) | |
3534 | armap_log++; | |
3535 | BFD_ASSERT (i == armap_count); | |
3536 | ||
3537 | hashtable = raw_armap + 4; | |
3538 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; | |
3539 | ||
3540 | /* Look through the list of undefined symbols. */ | |
3541 | pundef = &info->hash->undefs; | |
3542 | while (*pundef != (struct bfd_link_hash_entry *) NULL) | |
3543 | { | |
3544 | struct bfd_link_hash_entry *h; | |
3545 | unsigned int hash, rehash; | |
3546 | unsigned int file_offset; | |
3547 | const char *name; | |
3548 | bfd *element; | |
3549 | ||
3550 | h = *pundef; | |
3551 | ||
3552 | /* When a symbol is defined, it is not necessarily removed from | |
3553 | the list. */ | |
3554 | if (h->type != bfd_link_hash_undefined | |
3555 | && h->type != bfd_link_hash_common) | |
3556 | { | |
3557 | /* Remove this entry from the list, for general cleanliness | |
3558 | and because we are going to look through the list again | |
3559 | if we search any more libraries. We can't remove the | |
3560 | entry if it is the tail, because that would lose any | |
3561 | entries we add to the list later on. */ | |
3562 | if (*pundef != info->hash->undefs_tail) | |
3563 | *pundef = (*pundef)->next; | |
3564 | else | |
3565 | pundef = &(*pundef)->next; | |
3566 | continue; | |
3567 | } | |
3568 | ||
3569 | /* Native ECOFF linkers do not pull in archive elements merely | |
3570 | to satisfy common definitions, so neither do we. We leave | |
3571 | them on the list, though, in case we are linking against some | |
3572 | other object format. */ | |
3573 | if (h->type != bfd_link_hash_undefined) | |
3574 | { | |
3575 | pundef = &(*pundef)->next; | |
3576 | continue; | |
3577 | } | |
3578 | ||
3579 | /* Look for this symbol in the archive hash table. */ | |
3580 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, | |
3581 | armap_log); | |
3582 | ||
dc810e39 | 3583 | file_offset = H_GET_32 (abfd, hashtable + (hash * 8) + 4); |
252b5132 RH |
3584 | if (file_offset == 0) |
3585 | { | |
3586 | /* Nothing in this slot. */ | |
3587 | pundef = &(*pundef)->next; | |
3588 | continue; | |
3589 | } | |
3590 | ||
dc810e39 | 3591 | name = stringbase + H_GET_32 (abfd, hashtable + (hash * 8)); |
252b5132 RH |
3592 | if (name[0] != h->root.string[0] |
3593 | || strcmp (name, h->root.string) != 0) | |
3594 | { | |
3595 | unsigned int srch; | |
b34976b6 | 3596 | bfd_boolean found; |
252b5132 RH |
3597 | |
3598 | /* That was the wrong symbol. Try rehashing. */ | |
b34976b6 | 3599 | found = FALSE; |
252b5132 RH |
3600 | for (srch = (hash + rehash) & (armap_count - 1); |
3601 | srch != hash; | |
3602 | srch = (srch + rehash) & (armap_count - 1)) | |
3603 | { | |
dc810e39 | 3604 | file_offset = H_GET_32 (abfd, hashtable + (srch * 8) + 4); |
252b5132 RH |
3605 | if (file_offset == 0) |
3606 | break; | |
dc810e39 | 3607 | name = stringbase + H_GET_32 (abfd, hashtable + (srch * 8)); |
252b5132 RH |
3608 | if (name[0] == h->root.string[0] |
3609 | && strcmp (name, h->root.string) == 0) | |
3610 | { | |
b34976b6 | 3611 | found = TRUE; |
252b5132 RH |
3612 | break; |
3613 | } | |
3614 | } | |
3615 | ||
3616 | if (! found) | |
3617 | { | |
3618 | pundef = &(*pundef)->next; | |
3619 | continue; | |
3620 | } | |
3621 | ||
3622 | hash = srch; | |
3623 | } | |
3624 | ||
dc810e39 | 3625 | element = (*backend->get_elt_at_filepos) (abfd, (file_ptr) file_offset); |
252b5132 | 3626 | if (element == (bfd *) NULL) |
b34976b6 | 3627 | return FALSE; |
252b5132 RH |
3628 | |
3629 | if (! bfd_check_format (element, bfd_object)) | |
b34976b6 | 3630 | return FALSE; |
252b5132 RH |
3631 | |
3632 | /* Unlike the generic linker, we know that this element provides | |
3633 | a definition for an undefined symbol and we know that we want | |
3634 | to include it. We don't need to check anything. */ | |
3635 | if (! (*info->callbacks->add_archive_element) (info, element, name)) | |
b34976b6 | 3636 | return FALSE; |
252b5132 | 3637 | if (! ecoff_link_add_object_symbols (element, info)) |
b34976b6 | 3638 | return FALSE; |
252b5132 RH |
3639 | |
3640 | pundef = &(*pundef)->next; | |
3641 | } | |
3642 | ||
b34976b6 | 3643 | return TRUE; |
252b5132 RH |
3644 | } |
3645 | ||
3646 | /* This is called if we used _bfd_generic_link_add_archive_symbols | |
3647 | because we were not dealing with an ECOFF archive. */ | |
3648 | ||
b34976b6 | 3649 | static bfd_boolean |
252b5132 RH |
3650 | ecoff_link_check_archive_element (abfd, info, pneeded) |
3651 | bfd *abfd; | |
3652 | struct bfd_link_info *info; | |
b34976b6 | 3653 | bfd_boolean *pneeded; |
252b5132 RH |
3654 | { |
3655 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3656 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3657 | = backend->debug_swap.swap_ext_in; | |
3658 | HDRR *symhdr; | |
3659 | bfd_size_type external_ext_size; | |
3660 | PTR external_ext = NULL; | |
dc810e39 | 3661 | bfd_size_type esize; |
252b5132 RH |
3662 | char *ssext = NULL; |
3663 | char *ext_ptr; | |
3664 | char *ext_end; | |
3665 | ||
b34976b6 | 3666 | *pneeded = FALSE; |
252b5132 RH |
3667 | |
3668 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3669 | goto error_return; | |
3670 | ||
3671 | /* If there are no symbols, we don't want it. */ | |
3672 | if (bfd_get_symcount (abfd) == 0) | |
3673 | goto successful_return; | |
3674 | ||
3675 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3676 | ||
3677 | /* Read in the external symbols and external strings. */ | |
3678 | external_ext_size = backend->debug_swap.external_ext_size; | |
3679 | esize = symhdr->iextMax * external_ext_size; | |
3680 | external_ext = (PTR) bfd_malloc (esize); | |
3681 | if (external_ext == NULL && esize != 0) | |
3682 | goto error_return; | |
3683 | ||
dc810e39 AM |
3684 | if (bfd_seek (abfd, (file_ptr) symhdr->cbExtOffset, SEEK_SET) != 0 |
3685 | || bfd_bread (external_ext, esize, abfd) != esize) | |
252b5132 RH |
3686 | goto error_return; |
3687 | ||
dc810e39 | 3688 | ssext = (char *) bfd_malloc ((bfd_size_type) symhdr->issExtMax); |
252b5132 RH |
3689 | if (ssext == NULL && symhdr->issExtMax != 0) |
3690 | goto error_return; | |
3691 | ||
dc810e39 AM |
3692 | if (bfd_seek (abfd, (file_ptr) symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3693 | || (bfd_bread (ssext, (bfd_size_type) symhdr->issExtMax, abfd) | |
3694 | != (bfd_size_type) symhdr->issExtMax)) | |
252b5132 RH |
3695 | goto error_return; |
3696 | ||
3697 | /* Look through the external symbols to see if they define some | |
3698 | symbol that is currently undefined. */ | |
3699 | ext_ptr = (char *) external_ext; | |
3700 | ext_end = ext_ptr + esize; | |
3701 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) | |
3702 | { | |
3703 | EXTR esym; | |
b34976b6 | 3704 | bfd_boolean def; |
252b5132 RH |
3705 | const char *name; |
3706 | struct bfd_link_hash_entry *h; | |
3707 | ||
3708 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3709 | ||
3710 | /* See if this symbol defines something. */ | |
3711 | if (esym.asym.st != stGlobal | |
3712 | && esym.asym.st != stLabel | |
3713 | && esym.asym.st != stProc) | |
3714 | continue; | |
3715 | ||
3716 | switch (esym.asym.sc) | |
3717 | { | |
3718 | case scText: | |
3719 | case scData: | |
3720 | case scBss: | |
3721 | case scAbs: | |
3722 | case scSData: | |
3723 | case scSBss: | |
3724 | case scRData: | |
3725 | case scCommon: | |
3726 | case scSCommon: | |
3727 | case scInit: | |
3728 | case scFini: | |
3729 | case scRConst: | |
b34976b6 | 3730 | def = TRUE; |
252b5132 RH |
3731 | break; |
3732 | default: | |
b34976b6 | 3733 | def = FALSE; |
252b5132 RH |
3734 | break; |
3735 | } | |
3736 | ||
3737 | if (! def) | |
3738 | continue; | |
3739 | ||
3740 | name = ssext + esym.asym.iss; | |
b34976b6 | 3741 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
252b5132 RH |
3742 | |
3743 | /* Unlike the generic linker, we do not pull in elements because | |
3744 | of common symbols. */ | |
3745 | if (h == (struct bfd_link_hash_entry *) NULL | |
3746 | || h->type != bfd_link_hash_undefined) | |
3747 | continue; | |
3748 | ||
3749 | /* Include this element. */ | |
3750 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
3751 | goto error_return; | |
3752 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) | |
3753 | goto error_return; | |
3754 | ||
b34976b6 | 3755 | *pneeded = TRUE; |
252b5132 RH |
3756 | goto successful_return; |
3757 | } | |
3758 | ||
3759 | successful_return: | |
3760 | if (external_ext != NULL) | |
3761 | free (external_ext); | |
3762 | if (ssext != NULL) | |
3763 | free (ssext); | |
b34976b6 | 3764 | return TRUE; |
252b5132 RH |
3765 | error_return: |
3766 | if (external_ext != NULL) | |
3767 | free (external_ext); | |
3768 | if (ssext != NULL) | |
3769 | free (ssext); | |
b34976b6 | 3770 | return FALSE; |
252b5132 RH |
3771 | } |
3772 | ||
3773 | /* Add symbols from an ECOFF object file to the global linker hash | |
3774 | table. */ | |
3775 | ||
b34976b6 | 3776 | static bfd_boolean |
252b5132 RH |
3777 | ecoff_link_add_object_symbols (abfd, info) |
3778 | bfd *abfd; | |
3779 | struct bfd_link_info *info; | |
3780 | { | |
3781 | HDRR *symhdr; | |
3782 | bfd_size_type external_ext_size; | |
3783 | PTR external_ext = NULL; | |
dc810e39 | 3784 | bfd_size_type esize; |
252b5132 | 3785 | char *ssext = NULL; |
b34976b6 | 3786 | bfd_boolean result; |
252b5132 RH |
3787 | |
3788 | if (! ecoff_slurp_symbolic_header (abfd)) | |
b34976b6 | 3789 | return FALSE; |
252b5132 RH |
3790 | |
3791 | /* If there are no symbols, we don't want it. */ | |
3792 | if (bfd_get_symcount (abfd) == 0) | |
b34976b6 | 3793 | return TRUE; |
252b5132 RH |
3794 | |
3795 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3796 | ||
3797 | /* Read in the external symbols and external strings. */ | |
3798 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; | |
3799 | esize = symhdr->iextMax * external_ext_size; | |
3800 | external_ext = (PTR) bfd_malloc (esize); | |
3801 | if (external_ext == NULL && esize != 0) | |
3802 | goto error_return; | |
3803 | ||
dc810e39 AM |
3804 | if (bfd_seek (abfd, (file_ptr) symhdr->cbExtOffset, SEEK_SET) != 0 |
3805 | || bfd_bread (external_ext, esize, abfd) != esize) | |
252b5132 RH |
3806 | goto error_return; |
3807 | ||
dc810e39 | 3808 | ssext = (char *) bfd_malloc ((bfd_size_type) symhdr->issExtMax); |
252b5132 RH |
3809 | if (ssext == NULL && symhdr->issExtMax != 0) |
3810 | goto error_return; | |
3811 | ||
dc810e39 AM |
3812 | if (bfd_seek (abfd, (file_ptr) symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3813 | || (bfd_bread (ssext, (bfd_size_type) symhdr->issExtMax, abfd) | |
252b5132 RH |
3814 | != (bfd_size_type) symhdr->issExtMax)) |
3815 | goto error_return; | |
3816 | ||
3817 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); | |
3818 | ||
3819 | if (ssext != NULL) | |
3820 | free (ssext); | |
3821 | if (external_ext != NULL) | |
3822 | free (external_ext); | |
3823 | return result; | |
3824 | ||
3825 | error_return: | |
3826 | if (ssext != NULL) | |
3827 | free (ssext); | |
3828 | if (external_ext != NULL) | |
3829 | free (external_ext); | |
b34976b6 | 3830 | return FALSE; |
252b5132 RH |
3831 | } |
3832 | ||
3833 | /* Add the external symbols of an object file to the global linker | |
3834 | hash table. The external symbols and strings we are passed are | |
3835 | just allocated on the stack, and will be discarded. We must | |
3836 | explicitly save any information we may need later on in the link. | |
3837 | We do not want to read the external symbol information again. */ | |
3838 | ||
b34976b6 | 3839 | static bfd_boolean |
252b5132 RH |
3840 | ecoff_link_add_externals (abfd, info, external_ext, ssext) |
3841 | bfd *abfd; | |
3842 | struct bfd_link_info *info; | |
3843 | PTR external_ext; | |
3844 | char *ssext; | |
3845 | { | |
3846 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3847 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3848 | = backend->debug_swap.swap_ext_in; | |
3849 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; | |
3850 | unsigned long ext_count; | |
14a793b2 | 3851 | struct bfd_link_hash_entry **sym_hash; |
252b5132 RH |
3852 | char *ext_ptr; |
3853 | char *ext_end; | |
dc810e39 | 3854 | bfd_size_type amt; |
252b5132 RH |
3855 | |
3856 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
3857 | ||
dc810e39 AM |
3858 | amt = ext_count; |
3859 | amt *= sizeof (struct bfd_link_hash_entry *); | |
14a793b2 | 3860 | sym_hash = (struct bfd_link_hash_entry **) bfd_alloc (abfd, amt); |
252b5132 | 3861 | if (!sym_hash) |
b34976b6 | 3862 | return FALSE; |
14a793b2 | 3863 | ecoff_data (abfd)->sym_hashes = (struct ecoff_link_hash_entry **) sym_hash; |
252b5132 RH |
3864 | |
3865 | ext_ptr = (char *) external_ext; | |
3866 | ext_end = ext_ptr + ext_count * external_ext_size; | |
3867 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) | |
3868 | { | |
3869 | EXTR esym; | |
b34976b6 | 3870 | bfd_boolean skip; |
252b5132 RH |
3871 | bfd_vma value; |
3872 | asection *section; | |
3873 | const char *name; | |
3874 | struct ecoff_link_hash_entry *h; | |
3875 | ||
3876 | *sym_hash = NULL; | |
3877 | ||
3878 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3879 | ||
3880 | /* Skip debugging symbols. */ | |
b34976b6 | 3881 | skip = FALSE; |
252b5132 RH |
3882 | switch (esym.asym.st) |
3883 | { | |
3884 | case stGlobal: | |
3885 | case stStatic: | |
3886 | case stLabel: | |
3887 | case stProc: | |
3888 | case stStaticProc: | |
3889 | break; | |
3890 | default: | |
b34976b6 | 3891 | skip = TRUE; |
252b5132 RH |
3892 | break; |
3893 | } | |
3894 | ||
3895 | if (skip) | |
3896 | continue; | |
3897 | ||
3898 | /* Get the information for this symbol. */ | |
3899 | value = esym.asym.value; | |
3900 | switch (esym.asym.sc) | |
3901 | { | |
3902 | default: | |
3903 | case scNil: | |
3904 | case scRegister: | |
3905 | case scCdbLocal: | |
3906 | case scBits: | |
3907 | case scCdbSystem: | |
3908 | case scRegImage: | |
3909 | case scInfo: | |
3910 | case scUserStruct: | |
3911 | case scVar: | |
3912 | case scVarRegister: | |
3913 | case scVariant: | |
3914 | case scBasedVar: | |
3915 | case scXData: | |
3916 | case scPData: | |
3917 | section = NULL; | |
3918 | break; | |
3919 | case scText: | |
3920 | section = bfd_make_section_old_way (abfd, ".text"); | |
3921 | value -= section->vma; | |
3922 | break; | |
3923 | case scData: | |
3924 | section = bfd_make_section_old_way (abfd, ".data"); | |
3925 | value -= section->vma; | |
3926 | break; | |
3927 | case scBss: | |
3928 | section = bfd_make_section_old_way (abfd, ".bss"); | |
3929 | value -= section->vma; | |
3930 | break; | |
3931 | case scAbs: | |
3932 | section = bfd_abs_section_ptr; | |
3933 | break; | |
3934 | case scUndefined: | |
3935 | section = bfd_und_section_ptr; | |
3936 | break; | |
3937 | case scSData: | |
3938 | section = bfd_make_section_old_way (abfd, ".sdata"); | |
3939 | value -= section->vma; | |
3940 | break; | |
3941 | case scSBss: | |
3942 | section = bfd_make_section_old_way (abfd, ".sbss"); | |
3943 | value -= section->vma; | |
3944 | break; | |
3945 | case scRData: | |
3946 | section = bfd_make_section_old_way (abfd, ".rdata"); | |
3947 | value -= section->vma; | |
3948 | break; | |
3949 | case scCommon: | |
3950 | if (value > ecoff_data (abfd)->gp_size) | |
3951 | { | |
3952 | section = bfd_com_section_ptr; | |
3953 | break; | |
3954 | } | |
3955 | /* Fall through. */ | |
3956 | case scSCommon: | |
3957 | if (ecoff_scom_section.name == NULL) | |
3958 | { | |
3959 | /* Initialize the small common section. */ | |
3960 | ecoff_scom_section.name = SCOMMON; | |
3961 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
3962 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
3963 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
3964 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
3965 | ecoff_scom_symbol.name = SCOMMON; | |
3966 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
3967 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
3968 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
3969 | } | |
3970 | section = &ecoff_scom_section; | |
3971 | break; | |
3972 | case scSUndefined: | |
3973 | section = bfd_und_section_ptr; | |
3974 | break; | |
3975 | case scInit: | |
3976 | section = bfd_make_section_old_way (abfd, ".init"); | |
3977 | value -= section->vma; | |
3978 | break; | |
3979 | case scFini: | |
3980 | section = bfd_make_section_old_way (abfd, ".fini"); | |
3981 | value -= section->vma; | |
3982 | break; | |
3983 | case scRConst: | |
3984 | section = bfd_make_section_old_way (abfd, ".rconst"); | |
3985 | value -= section->vma; | |
3986 | break; | |
3987 | } | |
3988 | ||
3989 | if (section == (asection *) NULL) | |
3990 | continue; | |
3991 | ||
3992 | name = ssext + esym.asym.iss; | |
3993 | ||
252b5132 RH |
3994 | if (! (_bfd_generic_link_add_one_symbol |
3995 | (info, abfd, name, | |
dc810e39 | 3996 | (flagword) (esym.weakext ? BSF_WEAK : BSF_GLOBAL), |
b34976b6 AM |
3997 | section, value, (const char *) NULL, TRUE, TRUE, sym_hash))) |
3998 | return FALSE; | |
252b5132 | 3999 | |
14a793b2 | 4000 | h = (struct ecoff_link_hash_entry *) *sym_hash; |
252b5132 RH |
4001 | |
4002 | /* If we are building an ECOFF hash table, save the external | |
4003 | symbol information. */ | |
4004 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
4005 | { | |
4006 | if (h->abfd == (bfd *) NULL | |
4007 | || (! bfd_is_und_section (section) | |
4008 | && (! bfd_is_com_section (section) | |
4009 | || (h->root.type != bfd_link_hash_defined | |
4010 | && h->root.type != bfd_link_hash_defweak)))) | |
4011 | { | |
4012 | h->abfd = abfd; | |
4013 | h->esym = esym; | |
4014 | } | |
4015 | ||
4016 | /* Remember whether this symbol was small undefined. */ | |
4017 | if (esym.asym.sc == scSUndefined) | |
4018 | h->small = 1; | |
4019 | ||
4020 | /* If this symbol was ever small undefined, it needs to wind | |
4021 | up in a GP relative section. We can't control the | |
4022 | section of a defined symbol, but we can control the | |
4023 | section of a common symbol. This case is actually needed | |
4024 | on Ultrix 4.2 to handle the symbol cred in -lckrb. */ | |
4025 | if (h->small | |
4026 | && h->root.type == bfd_link_hash_common | |
4027 | && strcmp (h->root.u.c.p->section->name, SCOMMON) != 0) | |
4028 | { | |
4029 | h->root.u.c.p->section = bfd_make_section_old_way (abfd, | |
4030 | SCOMMON); | |
4031 | h->root.u.c.p->section->flags = SEC_ALLOC; | |
4032 | if (h->esym.asym.sc == scCommon) | |
4033 | h->esym.asym.sc = scSCommon; | |
4034 | } | |
4035 | } | |
4036 | } | |
4037 | ||
b34976b6 | 4038 | return TRUE; |
252b5132 RH |
4039 | } |
4040 | \f | |
4041 | /* ECOFF final link routines. */ | |
4042 | ||
b34976b6 | 4043 | static bfd_boolean ecoff_final_link_debug_accumulate |
252b5132 RH |
4044 | PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *, |
4045 | PTR handle)); | |
b34976b6 | 4046 | static bfd_boolean ecoff_link_write_external |
252b5132 | 4047 | PARAMS ((struct ecoff_link_hash_entry *, PTR)); |
b34976b6 | 4048 | static bfd_boolean ecoff_indirect_link_order |
252b5132 RH |
4049 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
4050 | struct bfd_link_order *)); | |
b34976b6 | 4051 | static bfd_boolean ecoff_reloc_link_order |
252b5132 RH |
4052 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
4053 | struct bfd_link_order *)); | |
4054 | ||
4055 | /* Structure used to pass information to ecoff_link_write_external. */ | |
4056 | ||
4057 | struct extsym_info | |
4058 | { | |
4059 | bfd *abfd; | |
4060 | struct bfd_link_info *info; | |
4061 | }; | |
4062 | ||
4063 | /* ECOFF final link routine. This looks through all the input BFDs | |
4064 | and gathers together all the debugging information, and then | |
4065 | processes all the link order information. This may cause it to | |
4066 | close and reopen some input BFDs; I'll see how bad this is. */ | |
4067 | ||
b34976b6 | 4068 | bfd_boolean |
252b5132 RH |
4069 | _bfd_ecoff_bfd_final_link (abfd, info) |
4070 | bfd *abfd; | |
4071 | struct bfd_link_info *info; | |
4072 | { | |
4073 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
4074 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
4075 | HDRR *symhdr; | |
4076 | PTR handle; | |
4077 | register bfd *input_bfd; | |
4078 | asection *o; | |
4079 | struct bfd_link_order *p; | |
4080 | struct extsym_info einfo; | |
4081 | ||
4082 | /* We accumulate the debugging information counts in the symbolic | |
4083 | header. */ | |
4084 | symhdr = &debug->symbolic_header; | |
4085 | symhdr->vstamp = 0; | |
4086 | symhdr->ilineMax = 0; | |
4087 | symhdr->cbLine = 0; | |
4088 | symhdr->idnMax = 0; | |
4089 | symhdr->ipdMax = 0; | |
4090 | symhdr->isymMax = 0; | |
4091 | symhdr->ioptMax = 0; | |
4092 | symhdr->iauxMax = 0; | |
4093 | symhdr->issMax = 0; | |
4094 | symhdr->issExtMax = 0; | |
4095 | symhdr->ifdMax = 0; | |
4096 | symhdr->crfd = 0; | |
4097 | symhdr->iextMax = 0; | |
4098 | ||
4099 | /* We accumulate the debugging information itself in the debug_info | |
4100 | structure. */ | |
4101 | debug->line = NULL; | |
4102 | debug->external_dnr = NULL; | |
4103 | debug->external_pdr = NULL; | |
4104 | debug->external_sym = NULL; | |
4105 | debug->external_opt = NULL; | |
4106 | debug->external_aux = NULL; | |
4107 | debug->ss = NULL; | |
4108 | debug->ssext = debug->ssext_end = NULL; | |
4109 | debug->external_fdr = NULL; | |
4110 | debug->external_rfd = NULL; | |
4111 | debug->external_ext = debug->external_ext_end = NULL; | |
4112 | ||
4113 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); | |
4114 | if (handle == (PTR) NULL) | |
b34976b6 | 4115 | return FALSE; |
252b5132 RH |
4116 | |
4117 | /* Accumulate the debugging symbols from each input BFD. */ | |
4118 | for (input_bfd = info->input_bfds; | |
4119 | input_bfd != (bfd *) NULL; | |
4120 | input_bfd = input_bfd->link_next) | |
4121 | { | |
b34976b6 | 4122 | bfd_boolean ret; |
252b5132 RH |
4123 | |
4124 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) | |
4125 | { | |
4126 | /* Abitrarily set the symbolic header vstamp to the vstamp | |
4127 | of the first object file in the link. */ | |
4128 | if (symhdr->vstamp == 0) | |
4129 | symhdr->vstamp | |
4130 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; | |
4131 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, | |
4132 | handle); | |
4133 | } | |
4134 | else | |
4135 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, | |
4136 | debug, &backend->debug_swap, | |
4137 | input_bfd, info); | |
4138 | if (! ret) | |
b34976b6 | 4139 | return FALSE; |
252b5132 RH |
4140 | |
4141 | /* Combine the register masks. */ | |
4142 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; | |
4143 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; | |
4144 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; | |
4145 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; | |
4146 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; | |
4147 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; | |
4148 | } | |
4149 | ||
4150 | /* Write out the external symbols. */ | |
4151 | einfo.abfd = abfd; | |
4152 | einfo.info = info; | |
4153 | ecoff_link_hash_traverse (ecoff_hash_table (info), | |
4154 | ecoff_link_write_external, | |
4155 | (PTR) &einfo); | |
4156 | ||
4157 | if (info->relocateable) | |
4158 | { | |
4159 | /* We need to make a pass over the link_orders to count up the | |
4160 | number of relocations we will need to output, so that we know | |
4161 | how much space they will take up. */ | |
4162 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4163 | { | |
4164 | o->reloc_count = 0; | |
4165 | for (p = o->link_order_head; | |
4166 | p != (struct bfd_link_order *) NULL; | |
4167 | p = p->next) | |
4168 | if (p->type == bfd_indirect_link_order) | |
4169 | o->reloc_count += p->u.indirect.section->reloc_count; | |
4170 | else if (p->type == bfd_section_reloc_link_order | |
4171 | || p->type == bfd_symbol_reloc_link_order) | |
4172 | ++o->reloc_count; | |
4173 | } | |
4174 | } | |
4175 | ||
4176 | /* Compute the reloc and symbol file positions. */ | |
4177 | ecoff_compute_reloc_file_positions (abfd); | |
4178 | ||
4179 | /* Write out the debugging information. */ | |
4180 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, | |
4181 | &backend->debug_swap, info, | |
4182 | ecoff_data (abfd)->sym_filepos)) | |
b34976b6 | 4183 | return FALSE; |
252b5132 RH |
4184 | |
4185 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); | |
4186 | ||
4187 | if (info->relocateable) | |
4188 | { | |
4189 | /* Now reset the reloc_count field of the sections in the output | |
4190 | BFD to 0, so that we can use them to keep track of how many | |
4191 | relocs we have output thus far. */ | |
4192 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4193 | o->reloc_count = 0; | |
4194 | } | |
4195 | ||
4196 | /* Get a value for the GP register. */ | |
4197 | if (ecoff_data (abfd)->gp == 0) | |
4198 | { | |
4199 | struct bfd_link_hash_entry *h; | |
4200 | ||
b34976b6 | 4201 | h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE); |
252b5132 RH |
4202 | if (h != (struct bfd_link_hash_entry *) NULL |
4203 | && h->type == bfd_link_hash_defined) | |
4204 | ecoff_data (abfd)->gp = (h->u.def.value | |
4205 | + h->u.def.section->output_section->vma | |
4206 | + h->u.def.section->output_offset); | |
4207 | else if (info->relocateable) | |
4208 | { | |
4209 | bfd_vma lo; | |
4210 | ||
4211 | /* Make up a value. */ | |
4212 | lo = (bfd_vma) -1; | |
4213 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4214 | { | |
4215 | if (o->vma < lo | |
4216 | && (strcmp (o->name, _SBSS) == 0 | |
4217 | || strcmp (o->name, _SDATA) == 0 | |
4218 | || strcmp (o->name, _LIT4) == 0 | |
4219 | || strcmp (o->name, _LIT8) == 0 | |
4220 | || strcmp (o->name, _LITA) == 0)) | |
4221 | lo = o->vma; | |
4222 | } | |
4223 | ecoff_data (abfd)->gp = lo + 0x8000; | |
4224 | } | |
4225 | else | |
4226 | { | |
4227 | /* If the relocate_section function needs to do a reloc | |
4228 | involving the GP value, it should make a reloc_dangerous | |
4229 | callback to warn that GP is not defined. */ | |
4230 | } | |
4231 | } | |
4232 | ||
4233 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4234 | { | |
4235 | for (p = o->link_order_head; | |
4236 | p != (struct bfd_link_order *) NULL; | |
4237 | p = p->next) | |
4238 | { | |
4239 | if (p->type == bfd_indirect_link_order | |
4240 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
4241 | == bfd_target_ecoff_flavour)) | |
4242 | { | |
4243 | if (! ecoff_indirect_link_order (abfd, info, o, p)) | |
b34976b6 | 4244 | return FALSE; |
252b5132 RH |
4245 | } |
4246 | else if (p->type == bfd_section_reloc_link_order | |
4247 | || p->type == bfd_symbol_reloc_link_order) | |
4248 | { | |
4249 | if (! ecoff_reloc_link_order (abfd, info, o, p)) | |
b34976b6 | 4250 | return FALSE; |
252b5132 RH |
4251 | } |
4252 | else | |
4253 | { | |
4254 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
b34976b6 | 4255 | return FALSE; |
252b5132 RH |
4256 | } |
4257 | } | |
4258 | } | |
4259 | ||
4260 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; | |
4261 | ||
b34976b6 | 4262 | ecoff_data (abfd)->linker = TRUE; |
252b5132 | 4263 | |
b34976b6 | 4264 | return TRUE; |
252b5132 RH |
4265 | } |
4266 | ||
4267 | /* Accumulate the debugging information for an input BFD into the | |
4268 | output BFD. This must read in the symbolic information of the | |
4269 | input BFD. */ | |
4270 | ||
b34976b6 | 4271 | static bfd_boolean |
252b5132 RH |
4272 | ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle) |
4273 | bfd *output_bfd; | |
4274 | bfd *input_bfd; | |
4275 | struct bfd_link_info *info; | |
4276 | PTR handle; | |
4277 | { | |
4278 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; | |
4279 | const struct ecoff_debug_swap * const swap = | |
4280 | &ecoff_backend (input_bfd)->debug_swap; | |
4281 | HDRR *symhdr = &debug->symbolic_header; | |
b34976b6 | 4282 | bfd_boolean ret; |
252b5132 | 4283 | |
dc810e39 AM |
4284 | #define READ(ptr, offset, count, size, type) \ |
4285 | if (symhdr->count == 0) \ | |
4286 | debug->ptr = NULL; \ | |
4287 | else \ | |
4288 | { \ | |
4289 | bfd_size_type amt = (bfd_size_type) size * symhdr->count; \ | |
4290 | debug->ptr = (type) bfd_malloc (amt); \ | |
4291 | if (debug->ptr == NULL) \ | |
4292 | { \ | |
b34976b6 | 4293 | ret = FALSE; \ |
dc810e39 AM |
4294 | goto return_something; \ |
4295 | } \ | |
4296 | if (bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ | |
4297 | || bfd_bread (debug->ptr, amt, input_bfd) != amt) \ | |
4298 | { \ | |
b34976b6 | 4299 | ret = FALSE; \ |
dc810e39 AM |
4300 | goto return_something; \ |
4301 | } \ | |
252b5132 RH |
4302 | } |
4303 | ||
4304 | /* If raw_syments is not NULL, then the data was already by read by | |
4305 | _bfd_ecoff_slurp_symbolic_info. */ | |
4306 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4307 | { | |
4308 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), | |
4309 | unsigned char *); | |
4310 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
4311 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
4312 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
4313 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
4314 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
4315 | union aux_ext *); | |
4316 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
4317 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
4318 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
4319 | } | |
4320 | #undef READ | |
4321 | ||
4322 | /* We do not read the external strings or the external symbols. */ | |
4323 | ||
4324 | ret = (bfd_ecoff_debug_accumulate | |
4325 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4326 | &ecoff_backend (output_bfd)->debug_swap, | |
4327 | input_bfd, debug, swap, info)); | |
4328 | ||
4329 | return_something: | |
4330 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4331 | { | |
4332 | if (debug->line != NULL) | |
4333 | free (debug->line); | |
4334 | if (debug->external_dnr != NULL) | |
4335 | free (debug->external_dnr); | |
4336 | if (debug->external_pdr != NULL) | |
4337 | free (debug->external_pdr); | |
4338 | if (debug->external_sym != NULL) | |
4339 | free (debug->external_sym); | |
4340 | if (debug->external_opt != NULL) | |
4341 | free (debug->external_opt); | |
4342 | if (debug->external_aux != NULL) | |
4343 | free (debug->external_aux); | |
4344 | if (debug->ss != NULL) | |
4345 | free (debug->ss); | |
4346 | if (debug->external_fdr != NULL) | |
4347 | free (debug->external_fdr); | |
4348 | if (debug->external_rfd != NULL) | |
4349 | free (debug->external_rfd); | |
4350 | ||
4351 | /* Make sure we don't accidentally follow one of these pointers | |
4352 | into freed memory. */ | |
4353 | debug->line = NULL; | |
4354 | debug->external_dnr = NULL; | |
4355 | debug->external_pdr = NULL; | |
4356 | debug->external_sym = NULL; | |
4357 | debug->external_opt = NULL; | |
4358 | debug->external_aux = NULL; | |
4359 | debug->ss = NULL; | |
4360 | debug->external_fdr = NULL; | |
4361 | debug->external_rfd = NULL; | |
4362 | } | |
4363 | ||
4364 | return ret; | |
4365 | } | |
4366 | ||
4367 | /* Put out information for an external symbol. These come only from | |
4368 | the hash table. */ | |
4369 | ||
b34976b6 | 4370 | static bfd_boolean |
252b5132 RH |
4371 | ecoff_link_write_external (h, data) |
4372 | struct ecoff_link_hash_entry *h; | |
4373 | PTR data; | |
4374 | { | |
4375 | struct extsym_info *einfo = (struct extsym_info *) data; | |
4376 | bfd *output_bfd = einfo->abfd; | |
b34976b6 | 4377 | bfd_boolean strip; |
252b5132 | 4378 | |
e92d460e AM |
4379 | if (h->root.type == bfd_link_hash_warning) |
4380 | { | |
4381 | h = (struct ecoff_link_hash_entry *) h->root.u.i.link; | |
4382 | if (h->root.type == bfd_link_hash_new) | |
b34976b6 | 4383 | return TRUE; |
e92d460e AM |
4384 | } |
4385 | ||
1abaf976 | 4386 | /* We need to check if this symbol is being stripped. */ |
252b5132 RH |
4387 | if (h->root.type == bfd_link_hash_undefined |
4388 | || h->root.type == bfd_link_hash_undefweak) | |
b34976b6 | 4389 | strip = FALSE; |
252b5132 RH |
4390 | else if (einfo->info->strip == strip_all |
4391 | || (einfo->info->strip == strip_some | |
4392 | && bfd_hash_lookup (einfo->info->keep_hash, | |
4393 | h->root.root.string, | |
b34976b6 AM |
4394 | FALSE, FALSE) == NULL)) |
4395 | strip = TRUE; | |
252b5132 | 4396 | else |
b34976b6 | 4397 | strip = FALSE; |
252b5132 RH |
4398 | |
4399 | if (strip || h->written) | |
b34976b6 | 4400 | return TRUE; |
252b5132 RH |
4401 | |
4402 | if (h->abfd == (bfd *) NULL) | |
4403 | { | |
4404 | h->esym.jmptbl = 0; | |
4405 | h->esym.cobol_main = 0; | |
4406 | h->esym.weakext = 0; | |
4407 | h->esym.reserved = 0; | |
4408 | h->esym.ifd = ifdNil; | |
4409 | h->esym.asym.value = 0; | |
4410 | h->esym.asym.st = stGlobal; | |
4411 | ||
4412 | if (h->root.type != bfd_link_hash_defined | |
4413 | && h->root.type != bfd_link_hash_defweak) | |
4414 | h->esym.asym.sc = scAbs; | |
4415 | else | |
4416 | { | |
4417 | asection *output_section; | |
4418 | const char *name; | |
4419 | ||
4420 | output_section = h->root.u.def.section->output_section; | |
4421 | name = bfd_section_name (output_section->owner, output_section); | |
1abaf976 | 4422 | |
252b5132 RH |
4423 | if (strcmp (name, _TEXT) == 0) |
4424 | h->esym.asym.sc = scText; | |
4425 | else if (strcmp (name, _DATA) == 0) | |
4426 | h->esym.asym.sc = scData; | |
4427 | else if (strcmp (name, _SDATA) == 0) | |
4428 | h->esym.asym.sc = scSData; | |
4429 | else if (strcmp (name, _RDATA) == 0) | |
4430 | h->esym.asym.sc = scRData; | |
4431 | else if (strcmp (name, _BSS) == 0) | |
4432 | h->esym.asym.sc = scBss; | |
4433 | else if (strcmp (name, _SBSS) == 0) | |
4434 | h->esym.asym.sc = scSBss; | |
4435 | else if (strcmp (name, _INIT) == 0) | |
4436 | h->esym.asym.sc = scInit; | |
4437 | else if (strcmp (name, _FINI) == 0) | |
4438 | h->esym.asym.sc = scFini; | |
4439 | else if (strcmp (name, _PDATA) == 0) | |
4440 | h->esym.asym.sc = scPData; | |
4441 | else if (strcmp (name, _XDATA) == 0) | |
4442 | h->esym.asym.sc = scXData; | |
4443 | else if (strcmp (name, _RCONST) == 0) | |
4444 | h->esym.asym.sc = scRConst; | |
4445 | else | |
4446 | h->esym.asym.sc = scAbs; | |
4447 | } | |
4448 | ||
4449 | h->esym.asym.reserved = 0; | |
4450 | h->esym.asym.index = indexNil; | |
4451 | } | |
4452 | else if (h->esym.ifd != -1) | |
4453 | { | |
4454 | struct ecoff_debug_info *debug; | |
4455 | ||
4456 | /* Adjust the FDR index for the symbol by that used for the | |
4457 | input BFD. */ | |
4458 | debug = &ecoff_data (h->abfd)->debug_info; | |
4459 | BFD_ASSERT (h->esym.ifd >= 0 | |
4460 | && h->esym.ifd < debug->symbolic_header.ifdMax); | |
4461 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; | |
4462 | } | |
4463 | ||
4464 | switch (h->root.type) | |
4465 | { | |
4466 | default: | |
e92d460e | 4467 | case bfd_link_hash_warning: |
252b5132 RH |
4468 | case bfd_link_hash_new: |
4469 | abort (); | |
4470 | case bfd_link_hash_undefined: | |
4471 | case bfd_link_hash_undefweak: | |
4472 | if (h->esym.asym.sc != scUndefined | |
4473 | && h->esym.asym.sc != scSUndefined) | |
4474 | h->esym.asym.sc = scUndefined; | |
4475 | break; | |
4476 | case bfd_link_hash_defined: | |
4477 | case bfd_link_hash_defweak: | |
4478 | if (h->esym.asym.sc == scUndefined | |
4479 | || h->esym.asym.sc == scSUndefined) | |
4480 | h->esym.asym.sc = scAbs; | |
4481 | else if (h->esym.asym.sc == scCommon) | |
4482 | h->esym.asym.sc = scBss; | |
4483 | else if (h->esym.asym.sc == scSCommon) | |
4484 | h->esym.asym.sc = scSBss; | |
4485 | h->esym.asym.value = (h->root.u.def.value | |
4486 | + h->root.u.def.section->output_section->vma | |
4487 | + h->root.u.def.section->output_offset); | |
4488 | break; | |
4489 | case bfd_link_hash_common: | |
4490 | if (h->esym.asym.sc != scCommon | |
4491 | && h->esym.asym.sc != scSCommon) | |
4492 | h->esym.asym.sc = scCommon; | |
4493 | h->esym.asym.value = h->root.u.c.size; | |
4494 | break; | |
4495 | case bfd_link_hash_indirect: | |
e92d460e AM |
4496 | /* We ignore these symbols, since the indirected symbol is |
4497 | already in the hash table. */ | |
b34976b6 | 4498 | return TRUE; |
252b5132 RH |
4499 | } |
4500 | ||
4501 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the | |
4502 | symbol number. */ | |
4503 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; | |
4504 | h->written = 1; | |
4505 | ||
4506 | return (bfd_ecoff_debug_one_external | |
4507 | (output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4508 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, | |
4509 | &h->esym)); | |
4510 | } | |
4511 | ||
4512 | /* Relocate and write an ECOFF section into an ECOFF output file. */ | |
4513 | ||
b34976b6 | 4514 | static bfd_boolean |
252b5132 RH |
4515 | ecoff_indirect_link_order (output_bfd, info, output_section, link_order) |
4516 | bfd *output_bfd; | |
4517 | struct bfd_link_info *info; | |
4518 | asection *output_section; | |
4519 | struct bfd_link_order *link_order; | |
4520 | { | |
4521 | asection *input_section; | |
4522 | bfd *input_bfd; | |
4523 | struct ecoff_section_tdata *section_tdata; | |
4524 | bfd_size_type raw_size; | |
4525 | bfd_size_type cooked_size; | |
4526 | bfd_byte *contents = NULL; | |
4527 | bfd_size_type external_reloc_size; | |
4528 | bfd_size_type external_relocs_size; | |
4529 | PTR external_relocs = NULL; | |
dc810e39 | 4530 | bfd_size_type amt; |
252b5132 RH |
4531 | |
4532 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); | |
4533 | ||
4534 | if (link_order->size == 0) | |
b34976b6 | 4535 | return TRUE; |
252b5132 RH |
4536 | |
4537 | input_section = link_order->u.indirect.section; | |
4538 | input_bfd = input_section->owner; | |
4539 | section_tdata = ecoff_section_data (input_bfd, input_section); | |
4540 | ||
4541 | raw_size = input_section->_raw_size; | |
4542 | cooked_size = input_section->_cooked_size; | |
4543 | if (cooked_size == 0) | |
4544 | cooked_size = raw_size; | |
4545 | ||
4546 | BFD_ASSERT (input_section->output_section == output_section); | |
4547 | BFD_ASSERT (input_section->output_offset == link_order->offset); | |
4548 | BFD_ASSERT (cooked_size == link_order->size); | |
4549 | ||
4550 | /* Get the section contents. We allocate memory for the larger of | |
4551 | the size before relocating and the size after relocating. */ | |
dc810e39 AM |
4552 | amt = raw_size >= cooked_size ? raw_size : cooked_size; |
4553 | contents = (bfd_byte *) bfd_malloc (amt); | |
4554 | if (contents == NULL && amt != 0) | |
252b5132 RH |
4555 | goto error_return; |
4556 | ||
4557 | /* If we are relaxing, the contents may have already been read into | |
4558 | memory, in which case we copy them into our new buffer. We don't | |
4559 | simply reuse the old buffer in case cooked_size > raw_size. */ | |
4560 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4561 | && section_tdata->contents != (bfd_byte *) NULL) | |
4562 | memcpy (contents, section_tdata->contents, (size_t) raw_size); | |
4563 | else | |
4564 | { | |
4565 | if (! bfd_get_section_contents (input_bfd, input_section, | |
4566 | (PTR) contents, | |
4567 | (file_ptr) 0, raw_size)) | |
4568 | goto error_return; | |
4569 | } | |
4570 | ||
4571 | /* Get the relocs. If we are relaxing MIPS code, they will already | |
4572 | have been read in. Otherwise, we read them in now. */ | |
4573 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; | |
4574 | external_relocs_size = external_reloc_size * input_section->reloc_count; | |
4575 | ||
4576 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4577 | && section_tdata->external_relocs != NULL) | |
4578 | external_relocs = section_tdata->external_relocs; | |
4579 | else | |
4580 | { | |
dc810e39 | 4581 | external_relocs = (PTR) bfd_malloc (external_relocs_size); |
252b5132 RH |
4582 | if (external_relocs == NULL && external_relocs_size != 0) |
4583 | goto error_return; | |
4584 | ||
4585 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 4586 | || (bfd_bread (external_relocs, external_relocs_size, input_bfd) |
252b5132 RH |
4587 | != external_relocs_size)) |
4588 | goto error_return; | |
4589 | } | |
4590 | ||
4591 | /* Relocate the section contents. */ | |
4592 | if (! ((*ecoff_backend (input_bfd)->relocate_section) | |
4593 | (output_bfd, info, input_bfd, input_section, contents, | |
4594 | external_relocs))) | |
4595 | goto error_return; | |
4596 | ||
4597 | /* Write out the relocated section. */ | |
4598 | if (! bfd_set_section_contents (output_bfd, | |
4599 | output_section, | |
4600 | (PTR) contents, | |
dc810e39 | 4601 | (file_ptr) input_section->output_offset, |
252b5132 RH |
4602 | cooked_size)) |
4603 | goto error_return; | |
4604 | ||
4605 | /* If we are producing relocateable output, the relocs were | |
4606 | modified, and we write them out now. We use the reloc_count | |
4607 | field of output_section to keep track of the number of relocs we | |
4608 | have output so far. */ | |
4609 | if (info->relocateable) | |
4610 | { | |
dc810e39 AM |
4611 | file_ptr pos = (output_section->rel_filepos |
4612 | + output_section->reloc_count * external_reloc_size); | |
4613 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
4614 | || (bfd_bwrite (external_relocs, external_relocs_size, output_bfd) | |
252b5132 RH |
4615 | != external_relocs_size)) |
4616 | goto error_return; | |
4617 | output_section->reloc_count += input_section->reloc_count; | |
4618 | } | |
4619 | ||
4620 | if (contents != NULL) | |
4621 | free (contents); | |
4622 | if (external_relocs != NULL && section_tdata == NULL) | |
4623 | free (external_relocs); | |
b34976b6 | 4624 | return TRUE; |
252b5132 RH |
4625 | |
4626 | error_return: | |
4627 | if (contents != NULL) | |
4628 | free (contents); | |
4629 | if (external_relocs != NULL && section_tdata == NULL) | |
4630 | free (external_relocs); | |
b34976b6 | 4631 | return FALSE; |
252b5132 RH |
4632 | } |
4633 | ||
4634 | /* Generate a reloc when linking an ECOFF file. This is a reloc | |
4635 | requested by the linker, and does come from any input file. This | |
4636 | is used to build constructor and destructor tables when linking | |
4637 | with -Ur. */ | |
4638 | ||
b34976b6 | 4639 | static bfd_boolean |
252b5132 RH |
4640 | ecoff_reloc_link_order (output_bfd, info, output_section, link_order) |
4641 | bfd *output_bfd; | |
4642 | struct bfd_link_info *info; | |
4643 | asection *output_section; | |
4644 | struct bfd_link_order *link_order; | |
4645 | { | |
4646 | enum bfd_link_order_type type; | |
4647 | asection *section; | |
4648 | bfd_vma addend; | |
4649 | arelent rel; | |
4650 | struct internal_reloc in; | |
4651 | bfd_size_type external_reloc_size; | |
4652 | bfd_byte *rbuf; | |
b34976b6 | 4653 | bfd_boolean ok; |
dc810e39 | 4654 | file_ptr pos; |
252b5132 RH |
4655 | |
4656 | type = link_order->type; | |
4657 | section = NULL; | |
4658 | addend = link_order->u.reloc.p->addend; | |
4659 | ||
4660 | /* We set up an arelent to pass to the backend adjust_reloc_out | |
4661 | routine. */ | |
4662 | rel.address = link_order->offset; | |
4663 | ||
4664 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
4665 | if (rel.howto == 0) | |
4666 | { | |
4667 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4668 | return FALSE; |
252b5132 RH |
4669 | } |
4670 | ||
4671 | if (type == bfd_section_reloc_link_order) | |
4672 | { | |
4673 | section = link_order->u.reloc.p->u.section; | |
4674 | rel.sym_ptr_ptr = section->symbol_ptr_ptr; | |
4675 | } | |
4676 | else | |
4677 | { | |
4678 | struct bfd_link_hash_entry *h; | |
4679 | ||
4680 | /* Treat a reloc against a defined symbol as though it were | |
4681 | actually against the section. */ | |
4682 | h = bfd_wrapped_link_hash_lookup (output_bfd, info, | |
4683 | link_order->u.reloc.p->u.name, | |
b34976b6 | 4684 | FALSE, FALSE, FALSE); |
252b5132 RH |
4685 | if (h != NULL |
4686 | && (h->type == bfd_link_hash_defined | |
4687 | || h->type == bfd_link_hash_defweak)) | |
4688 | { | |
4689 | type = bfd_section_reloc_link_order; | |
4690 | section = h->u.def.section->output_section; | |
4691 | /* It seems that we ought to add the symbol value to the | |
4692 | addend here, but in practice it has already been added | |
4693 | because it was passed to constructor_callback. */ | |
4694 | addend += section->vma + h->u.def.section->output_offset; | |
4695 | } | |
4696 | else | |
4697 | { | |
4698 | /* We can't set up a reloc against a symbol correctly, | |
4699 | because we have no asymbol structure. Currently no | |
4700 | adjust_reloc_out routine cares. */ | |
4701 | rel.sym_ptr_ptr = (asymbol **) NULL; | |
4702 | } | |
4703 | } | |
4704 | ||
4705 | /* All ECOFF relocs are in-place. Put the addend into the object | |
4706 | file. */ | |
4707 | ||
4708 | BFD_ASSERT (rel.howto->partial_inplace); | |
4709 | if (addend != 0) | |
4710 | { | |
4711 | bfd_size_type size; | |
4712 | bfd_reloc_status_type rstat; | |
4713 | bfd_byte *buf; | |
252b5132 RH |
4714 | |
4715 | size = bfd_get_reloc_size (rel.howto); | |
4716 | buf = (bfd_byte *) bfd_zmalloc (size); | |
4717 | if (buf == (bfd_byte *) NULL) | |
b34976b6 | 4718 | return FALSE; |
dc810e39 AM |
4719 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, |
4720 | (bfd_vma) addend, buf); | |
252b5132 RH |
4721 | switch (rstat) |
4722 | { | |
4723 | case bfd_reloc_ok: | |
4724 | break; | |
4725 | default: | |
4726 | case bfd_reloc_outofrange: | |
4727 | abort (); | |
4728 | case bfd_reloc_overflow: | |
4729 | if (! ((*info->callbacks->reloc_overflow) | |
4730 | (info, | |
4731 | (link_order->type == bfd_section_reloc_link_order | |
4732 | ? bfd_section_name (output_bfd, section) | |
4733 | : link_order->u.reloc.p->u.name), | |
4734 | rel.howto->name, addend, (bfd *) NULL, | |
4735 | (asection *) NULL, (bfd_vma) 0))) | |
4736 | { | |
4737 | free (buf); | |
b34976b6 | 4738 | return FALSE; |
252b5132 RH |
4739 | } |
4740 | break; | |
4741 | } | |
4742 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
4743 | (file_ptr) link_order->offset, size); | |
4744 | free (buf); | |
4745 | if (! ok) | |
b34976b6 | 4746 | return FALSE; |
252b5132 RH |
4747 | } |
4748 | ||
4749 | rel.addend = 0; | |
4750 | ||
08da05b0 | 4751 | /* Move the information into an internal_reloc structure. */ |
252b5132 RH |
4752 | in.r_vaddr = (rel.address |
4753 | + bfd_get_section_vma (output_bfd, output_section)); | |
4754 | in.r_type = rel.howto->type; | |
4755 | ||
4756 | if (type == bfd_symbol_reloc_link_order) | |
4757 | { | |
4758 | struct ecoff_link_hash_entry *h; | |
4759 | ||
4760 | h = ((struct ecoff_link_hash_entry *) | |
4761 | bfd_wrapped_link_hash_lookup (output_bfd, info, | |
4762 | link_order->u.reloc.p->u.name, | |
b34976b6 | 4763 | FALSE, FALSE, TRUE)); |
252b5132 RH |
4764 | if (h != (struct ecoff_link_hash_entry *) NULL |
4765 | && h->indx != -1) | |
4766 | in.r_symndx = h->indx; | |
4767 | else | |
4768 | { | |
4769 | if (! ((*info->callbacks->unattached_reloc) | |
4770 | (info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
4771 | (asection *) NULL, (bfd_vma) 0))) | |
b34976b6 | 4772 | return FALSE; |
252b5132 RH |
4773 | in.r_symndx = 0; |
4774 | } | |
4775 | in.r_extern = 1; | |
4776 | } | |
4777 | else | |
4778 | { | |
dc810e39 | 4779 | const char *name; |
252b5132 RH |
4780 | |
4781 | name = bfd_get_section_name (output_bfd, section); | |
4782 | if (strcmp (name, ".text") == 0) | |
4783 | in.r_symndx = RELOC_SECTION_TEXT; | |
4784 | else if (strcmp (name, ".rdata") == 0) | |
4785 | in.r_symndx = RELOC_SECTION_RDATA; | |
4786 | else if (strcmp (name, ".data") == 0) | |
4787 | in.r_symndx = RELOC_SECTION_DATA; | |
4788 | else if (strcmp (name, ".sdata") == 0) | |
4789 | in.r_symndx = RELOC_SECTION_SDATA; | |
4790 | else if (strcmp (name, ".sbss") == 0) | |
4791 | in.r_symndx = RELOC_SECTION_SBSS; | |
4792 | else if (strcmp (name, ".bss") == 0) | |
4793 | in.r_symndx = RELOC_SECTION_BSS; | |
4794 | else if (strcmp (name, ".init") == 0) | |
4795 | in.r_symndx = RELOC_SECTION_INIT; | |
4796 | else if (strcmp (name, ".lit8") == 0) | |
4797 | in.r_symndx = RELOC_SECTION_LIT8; | |
4798 | else if (strcmp (name, ".lit4") == 0) | |
4799 | in.r_symndx = RELOC_SECTION_LIT4; | |
4800 | else if (strcmp (name, ".xdata") == 0) | |
4801 | in.r_symndx = RELOC_SECTION_XDATA; | |
4802 | else if (strcmp (name, ".pdata") == 0) | |
4803 | in.r_symndx = RELOC_SECTION_PDATA; | |
4804 | else if (strcmp (name, ".fini") == 0) | |
4805 | in.r_symndx = RELOC_SECTION_FINI; | |
4806 | else if (strcmp (name, ".lita") == 0) | |
4807 | in.r_symndx = RELOC_SECTION_LITA; | |
4808 | else if (strcmp (name, "*ABS*") == 0) | |
4809 | in.r_symndx = RELOC_SECTION_ABS; | |
4810 | else if (strcmp (name, ".rconst") == 0) | |
4811 | in.r_symndx = RELOC_SECTION_RCONST; | |
4812 | else | |
4813 | abort (); | |
4814 | in.r_extern = 0; | |
4815 | } | |
4816 | ||
4817 | /* Let the BFD backend adjust the reloc. */ | |
4818 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); | |
4819 | ||
4820 | /* Get some memory and swap out the reloc. */ | |
4821 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; | |
dc810e39 | 4822 | rbuf = (bfd_byte *) bfd_malloc (external_reloc_size); |
252b5132 | 4823 | if (rbuf == (bfd_byte *) NULL) |
b34976b6 | 4824 | return FALSE; |
252b5132 RH |
4825 | |
4826 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (PTR) rbuf); | |
4827 | ||
dc810e39 AM |
4828 | pos = (output_section->rel_filepos |
4829 | + output_section->reloc_count * external_reloc_size); | |
4830 | ok = (bfd_seek (output_bfd, pos, SEEK_SET) == 0 | |
4831 | && (bfd_bwrite ((PTR) rbuf, external_reloc_size, output_bfd) | |
252b5132 RH |
4832 | == external_reloc_size)); |
4833 | ||
4834 | if (ok) | |
4835 | ++output_section->reloc_count; | |
4836 | ||
4837 | free (rbuf); | |
4838 | ||
4839 | return ok; | |
4840 | } |