Commit | Line | Data |
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a6163c10 TG |
1 | /* BFD back-end for VMS archive files. |
2 | ||
3 | Copyright 2010 Free Software Foundation, Inc. | |
4 | Written by Tristan Gingold <gingold@adacore.com>, AdaCore. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
25 | #include "libbfd.h" | |
26 | #include "safe-ctype.h" | |
27 | #include "bfdver.h" | |
28 | #include "vms.h" | |
29 | #include "vms/lbr.h" | |
30 | #include "vms/dcx.h" | |
31 | ||
32 | /* The standard VMS disk block size. */ | |
33 | #ifndef VMS_BLOCK_SIZE | |
34 | #define VMS_BLOCK_SIZE 512 | |
35 | #endif | |
36 | ||
37 | /* Maximum key length (which is also the maximum symbol length in archive). */ | |
38 | #define MAX_KEYLEN 129 | |
39 | ||
40 | /* DCX Submaps. */ | |
41 | ||
42 | struct dcxsbm_desc | |
43 | { | |
44 | unsigned char min_char; | |
45 | unsigned char max_char; | |
46 | unsigned char *flags; | |
47 | unsigned char *nodes; | |
48 | unsigned short *next; | |
49 | }; | |
50 | ||
51 | /* Kind of library. Used to filter in archive_p. */ | |
52 | ||
53 | enum vms_lib_kind | |
54 | { | |
55 | vms_lib_vax, | |
56 | vms_lib_alpha, | |
57 | vms_lib_ia64, | |
58 | vms_lib_txt | |
59 | }; | |
60 | ||
61 | /* Back-end private data. */ | |
62 | ||
63 | struct lib_tdata | |
64 | { | |
8e57e1d1 TG |
65 | /* Standard tdata for an archive. But we don't use many fields. */ |
66 | struct artdata artdata; | |
67 | ||
a6163c10 TG |
68 | /* Major version. */ |
69 | unsigned char ver; | |
70 | ||
71 | /* Type of the archive. */ | |
72 | unsigned char type; | |
73 | ||
74 | /* Kind of archive. Summary of its type. */ | |
75 | enum vms_lib_kind kind; | |
76 | ||
77 | /* Total size of the mhd (element header). */ | |
78 | unsigned int mhd_size; | |
79 | ||
80 | /* Vector of modules (archive elements), already sorted. */ | |
81 | unsigned int nbr_modules; | |
82 | struct carsym *modules; | |
83 | bfd **cache; | |
84 | ||
a6163c10 TG |
85 | /* DCX (decompression) data. */ |
86 | unsigned int nbr_dcxsbm; | |
87 | struct dcxsbm_desc *dcxsbm; | |
88 | }; | |
89 | ||
90 | #define bfd_libdata(bfd) ((struct lib_tdata *)((bfd)->tdata.any)) | |
91 | ||
92 | /* End-Of-Text pattern. This is a special record to mark the end of file. */ | |
93 | ||
94 | static const unsigned char eotdesc[] = { 0x03, 0x00, 0x77, 0x00, 0x77, 0x00 }; | |
95 | ||
8e57e1d1 TG |
96 | /* Describe the current state of carsym entries while building the archive |
97 | table of content. Things are simple with Alpha archives as the number | |
98 | of entries is known, but with IA64 archives a entry can make a reference | |
99 | to severals members. Therefore we must be able to extend the table on the | |
100 | fly, but it should be allocated on the bfd - which doesn't support realloc. | |
101 | To reduce the overhead, the table is initially allocated in the BFD's | |
102 | objalloc and extended if necessary on the heap. In the later case, it | |
103 | is finally copied to the BFD's objalloc so that it will automatically be | |
104 | freed. */ | |
105 | ||
106 | struct carsym_mem | |
107 | { | |
108 | /* The table of content. */ | |
109 | struct carsym *idx; | |
110 | ||
111 | /* Number of entries used in the table. */ | |
112 | unsigned int nbr; | |
113 | ||
114 | /* Maximum number of entries. */ | |
115 | unsigned int max; | |
116 | ||
117 | /* If true, the table was reallocated on the heap. If false, it is still | |
118 | in the BFD's objalloc. */ | |
119 | bfd_boolean realloced; | |
120 | }; | |
121 | ||
122 | /* Simply add a name to the index. */ | |
123 | ||
124 | static bfd_boolean | |
125 | vms_add_index (struct carsym_mem *cs, char *name, | |
126 | unsigned int idx_vbn, unsigned int idx_off) | |
127 | { | |
128 | if (cs->nbr == cs->max) | |
129 | { | |
130 | struct carsym *n; | |
131 | ||
132 | cs->max = 2 * cs->max + 32; | |
133 | ||
134 | if (!cs->realloced) | |
135 | { | |
136 | n = bfd_malloc2 (cs->max, sizeof (struct carsym)); | |
137 | if (n == NULL) | |
138 | return FALSE; | |
139 | memcpy (n, cs->idx, cs->nbr * sizeof (struct carsym)); | |
140 | /* And unfortunately we can't free cs->idx. */ | |
141 | } | |
142 | else | |
143 | { | |
144 | n = bfd_realloc_or_free (cs->idx, cs->nbr * sizeof (struct carsym)); | |
145 | if (n == NULL) | |
146 | return FALSE; | |
147 | } | |
148 | cs->idx = n; | |
149 | cs->realloced = TRUE; | |
150 | } | |
151 | cs->idx[cs->nbr].file_offset = (idx_vbn - 1) * VMS_BLOCK_SIZE + idx_off; | |
152 | cs->idx[cs->nbr].name = name; | |
153 | cs->nbr++; | |
154 | return TRUE; | |
155 | } | |
156 | ||
157 | /* Follow all member of a lns list (pointed by RFA) and add indexes for | |
158 | NAME. Return FALSE in case of error. */ | |
159 | ||
160 | static bfd_boolean | |
161 | vms_add_indexes_from_list (bfd *abfd, struct carsym_mem *cs, char *name, | |
162 | struct vms_rfa *rfa) | |
163 | { | |
164 | struct vms_lns lns; | |
165 | unsigned int vbn; | |
166 | file_ptr off; | |
167 | ||
168 | while (1) | |
169 | { | |
170 | vbn = bfd_getl32 (rfa->vbn); | |
171 | if (vbn == 0) | |
172 | return TRUE; | |
173 | ||
174 | /* Read the LHS. */ | |
175 | off = (vbn - 1) * VMS_BLOCK_SIZE + bfd_getl16 (rfa->offset); | |
176 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
177 | || bfd_bread (&lns, sizeof (lns), abfd) != sizeof (lns)) | |
178 | return FALSE; | |
179 | ||
180 | if (!vms_add_index (cs, name, | |
181 | bfd_getl32 (lns.modrfa.vbn), | |
182 | bfd_getl16 (lns.modrfa.offset))) | |
183 | return FALSE; | |
184 | ||
185 | rfa = &lns.nxtrfa; | |
186 | } | |
187 | } | |
188 | ||
13a985e1 TG |
189 | /* Read block VBN from ABFD and store it into BLK. */ |
190 | ||
191 | static bfd_boolean | |
192 | vms_read_block (bfd *abfd, unsigned int vbn, void *blk) | |
193 | { | |
194 | file_ptr off; | |
195 | ||
196 | /* Read the index block. */ | |
197 | off = (vbn - 1) * VMS_BLOCK_SIZE; | |
198 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
199 | || bfd_bread (blk, VMS_BLOCK_SIZE, abfd) != VMS_BLOCK_SIZE) | |
200 | return FALSE; | |
201 | ||
202 | return TRUE; | |
203 | } | |
204 | ||
a6163c10 TG |
205 | /* Read index block VBN and put the entry in **IDX (which is updated). |
206 | If the entry is indirect, recurse. */ | |
207 | ||
208 | static bfd_boolean | |
8e57e1d1 | 209 | vms_traverse_index (bfd *abfd, unsigned int vbn, struct carsym_mem *cs) |
a6163c10 TG |
210 | { |
211 | struct vms_indexdef indexdef; | |
a6163c10 | 212 | file_ptr off; |
8e57e1d1 TG |
213 | unsigned char *p; |
214 | unsigned char *endp; | |
a6163c10 TG |
215 | |
216 | /* Read the index block. */ | |
13a985e1 TG |
217 | BFD_ASSERT (sizeof (indexdef) == VMS_BLOCK_SIZE); |
218 | if (!vms_read_block (abfd, vbn, &indexdef)) | |
a6163c10 TG |
219 | return FALSE; |
220 | ||
221 | /* Traverse it. */ | |
8e57e1d1 TG |
222 | p = &indexdef.keys[0]; |
223 | endp = p + bfd_getl16 (indexdef.used); | |
224 | while (p < endp) | |
a6163c10 TG |
225 | { |
226 | unsigned int idx_vbn; | |
227 | unsigned int idx_off; | |
228 | unsigned int keylen; | |
229 | unsigned char *keyname; | |
8e57e1d1 | 230 | unsigned int flags; |
a6163c10 TG |
231 | |
232 | /* Extract key length. */ | |
8e57e1d1 | 233 | if (bfd_libdata (abfd)->ver == LBR_MAJORID) |
a6163c10 | 234 | { |
8e57e1d1 TG |
235 | struct vms_idx *ridx = (struct vms_idx *)p; |
236 | ||
237 | idx_vbn = bfd_getl32 (ridx->rfa.vbn); | |
238 | idx_off = bfd_getl16 (ridx->rfa.offset); | |
239 | ||
240 | keylen = ridx->keylen; | |
241 | flags = 0; | |
242 | keyname = ridx->keyname; | |
a6163c10 | 243 | } |
8e57e1d1 | 244 | else if (bfd_libdata (abfd)->ver == LBR_ELFMAJORID) |
a6163c10 | 245 | { |
8e57e1d1 TG |
246 | struct vms_elfidx *ridx = (struct vms_elfidx *)p; |
247 | ||
248 | idx_vbn = bfd_getl32 (ridx->rfa.vbn); | |
249 | idx_off = bfd_getl16 (ridx->rfa.offset); | |
250 | ||
251 | keylen = bfd_getl16 (ridx->keylen); | |
252 | flags = ridx->flags; | |
253 | keyname = ridx->keyname; | |
a6163c10 TG |
254 | } |
255 | else | |
256 | return FALSE; | |
257 | ||
8e57e1d1 TG |
258 | /* Illegal value. */ |
259 | if (idx_vbn == 0) | |
260 | return FALSE; | |
261 | ||
a6163c10 TG |
262 | if (idx_off == RFADEF__C_INDEX) |
263 | { | |
264 | /* Indirect entry. Recurse. */ | |
8e57e1d1 | 265 | if (!vms_traverse_index (abfd, idx_vbn, cs)) |
a6163c10 TG |
266 | return FALSE; |
267 | } | |
268 | else | |
269 | { | |
270 | /* Add a new entry. */ | |
271 | char *name; | |
272 | ||
13a985e1 TG |
273 | if (flags & ELFIDX__SYMESC) |
274 | { | |
275 | /* Extended key name. */ | |
276 | unsigned int noff = 0; | |
277 | unsigned int koff; | |
278 | unsigned int kvbn; | |
279 | struct vms_kbn *kbn; | |
280 | unsigned char kblk[VMS_BLOCK_SIZE]; | |
281 | ||
282 | /* Sanity check. */ | |
283 | if (keylen != sizeof (struct vms_kbn)) | |
284 | return FALSE; | |
285 | ||
286 | kbn = (struct vms_kbn *)keyname; | |
287 | keylen = bfd_getl16 (kbn->keylen); | |
288 | ||
289 | name = bfd_alloc (abfd, keylen + 1); | |
290 | if (name == NULL) | |
291 | return FALSE; | |
292 | kvbn = bfd_getl32 (kbn->rfa.vbn); | |
293 | koff = bfd_getl16 (kbn->rfa.offset); | |
294 | ||
295 | /* Read the key, chunk by chunk. */ | |
296 | do | |
297 | { | |
298 | unsigned int klen; | |
299 | ||
300 | if (!vms_read_block (abfd, kvbn, kblk)) | |
301 | return FALSE; | |
302 | kbn = (struct vms_kbn *)(kblk + koff); | |
303 | klen = bfd_getl16 (kbn->keylen); | |
304 | kvbn = bfd_getl32 (kbn->rfa.vbn); | |
305 | koff = bfd_getl16 (kbn->rfa.offset); | |
306 | ||
307 | memcpy (name + noff, kbn + 1, klen); | |
308 | noff += klen; | |
309 | } | |
310 | while (kvbn != 0); | |
311 | ||
312 | /* Sanity check. */ | |
313 | if (noff != keylen) | |
314 | return FALSE; | |
315 | } | |
316 | else | |
317 | { | |
318 | /* Usual key name. */ | |
319 | name = bfd_alloc (abfd, keylen + 1); | |
320 | if (name == NULL) | |
321 | return FALSE; | |
322 | ||
323 | memcpy (name, keyname, keylen); | |
324 | } | |
a6163c10 | 325 | name[keylen] = 0; |
8e57e1d1 TG |
326 | |
327 | if (flags & ELFIDX__LISTRFA) | |
328 | { | |
329 | struct vms_lhs lhs; | |
330 | ||
331 | /* Read the LHS. */ | |
332 | off = (idx_vbn - 1) * VMS_BLOCK_SIZE + idx_off; | |
333 | if (bfd_seek (abfd, off, SEEK_SET) != 0 | |
334 | || bfd_bread (&lhs, sizeof (lhs), abfd) != sizeof (lhs)) | |
335 | return FALSE; | |
336 | ||
337 | /* FIXME: this adds extra entries that were not accounted. */ | |
338 | if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.ng_g_rfa)) | |
339 | return FALSE; | |
340 | if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.ng_wk_rfa)) | |
341 | return FALSE; | |
342 | if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.g_g_rfa)) | |
343 | return FALSE; | |
344 | if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.g_wk_rfa)) | |
345 | return FALSE; | |
346 | } | |
347 | else | |
348 | { | |
349 | if (!vms_add_index (cs, name, idx_vbn, idx_off)) | |
350 | return FALSE; | |
351 | } | |
a6163c10 | 352 | } |
8e57e1d1 TG |
353 | |
354 | /* Point to the next index entry. */ | |
355 | p = keyname + keylen; | |
a6163c10 TG |
356 | } |
357 | ||
358 | return TRUE; | |
359 | } | |
360 | ||
361 | /* Read index #IDX, which must have NBREL entries. */ | |
362 | ||
363 | static struct carsym * | |
8e57e1d1 | 364 | vms_lib_read_index (bfd *abfd, int idx, unsigned int *nbrel) |
a6163c10 | 365 | { |
a6163c10 TG |
366 | struct vms_idd idd; |
367 | unsigned int flags; | |
368 | unsigned int vbn; | |
8e57e1d1 TG |
369 | struct carsym *csbuf; |
370 | struct carsym_mem csm; | |
a6163c10 TG |
371 | |
372 | /* Read index desription. */ | |
373 | if (bfd_seek (abfd, LHD_IDXDESC + idx * IDD_LENGTH, SEEK_SET) != 0 | |
374 | || bfd_bread (&idd, sizeof (idd), abfd) != sizeof (idd)) | |
375 | return NULL; | |
376 | ||
377 | /* Sanity checks. */ | |
378 | flags = bfd_getl16 (idd.flags); | |
379 | if (!(flags & IDD__FLAGS_ASCII) | |
380 | || !(flags & IDD__FLAGS_VARLENIDX)) | |
381 | return NULL; | |
382 | ||
8e57e1d1 TG |
383 | csbuf = bfd_alloc (abfd, *nbrel * sizeof (struct carsym)); |
384 | if (csbuf == NULL) | |
a6163c10 TG |
385 | return NULL; |
386 | ||
8e57e1d1 TG |
387 | csm.max = *nbrel; |
388 | csm.nbr = 0; | |
389 | csm.realloced = FALSE; | |
390 | csm.idx = csbuf; | |
a6163c10 TG |
391 | |
392 | /* Note: if the index is empty, there is no block to traverse. */ | |
393 | vbn = bfd_getl32 (idd.vbn); | |
8e57e1d1 | 394 | if (vbn != 0 && !vms_traverse_index (abfd, vbn, &csm)) |
a6163c10 | 395 | { |
8e57e1d1 TG |
396 | if (csm.realloced && csm.idx != NULL) |
397 | free (csm.idx); | |
398 | ||
399 | /* Note: in case of error, we can free what was allocated on the | |
400 | BFD's objalloc. */ | |
401 | bfd_release (abfd, csbuf); | |
a6163c10 TG |
402 | return NULL; |
403 | } | |
404 | ||
8e57e1d1 | 405 | if (csm.realloced) |
a6163c10 | 406 | { |
8e57e1d1 TG |
407 | /* There are more entries than the first estimate. Allocate on |
408 | the BFD's objalloc. */ | |
409 | csbuf = bfd_alloc (abfd, csm.nbr * sizeof (struct carsym)); | |
410 | if (csbuf == NULL) | |
411 | return NULL; | |
412 | memcpy (csbuf, csm.idx, csm.nbr * sizeof (struct carsym)); | |
413 | free (csm.idx); | |
414 | *nbrel = csm.nbr; | |
a6163c10 | 415 | } |
8e57e1d1 | 416 | return csbuf; |
a6163c10 TG |
417 | } |
418 | ||
419 | /* Standard function. */ | |
420 | ||
421 | static const bfd_target * | |
422 | _bfd_vms_lib_archive_p (bfd *abfd, enum vms_lib_kind kind) | |
423 | { | |
424 | struct vms_lhd lhd; | |
425 | unsigned int sanity; | |
426 | struct lib_tdata *tdata_hold; | |
427 | struct lib_tdata *tdata; | |
428 | unsigned int dcxvbn; | |
8e57e1d1 | 429 | unsigned int nbr_ent; |
a6163c10 TG |
430 | |
431 | /* Read header. */ | |
432 | if (bfd_bread (&lhd, sizeof (lhd), abfd) != sizeof (lhd)) | |
433 | { | |
434 | if (bfd_get_error () != bfd_error_system_call) | |
435 | bfd_set_error (bfd_error_wrong_format); | |
436 | return NULL; | |
437 | } | |
438 | ||
439 | /* Check sanity (= magic) number. */ | |
440 | sanity = bfd_getl32 (lhd.sanity); | |
441 | if (!(sanity == LHD_SANEID3 | |
8e57e1d1 | 442 | || sanity == LHD_SANEID6 |
a6163c10 TG |
443 | || sanity == LHD_SANEID_DCX)) |
444 | { | |
445 | bfd_set_error (bfd_error_wrong_format); | |
446 | return NULL; | |
447 | } | |
448 | ||
449 | /* Check archive kind. */ | |
450 | switch (kind) | |
451 | { | |
452 | case vms_lib_alpha: | |
453 | if ((lhd.type != LBR__C_TYP_EOBJ && lhd.type != LBR__C_TYP_ESHSTB) | |
454 | || bfd_getl32 (lhd.majorid) != 3 | |
455 | || lhd.nindex != 2) | |
456 | { | |
457 | bfd_set_error (bfd_error_wrong_format); | |
458 | return NULL; | |
459 | } | |
460 | break; | |
8e57e1d1 TG |
461 | case vms_lib_ia64: |
462 | if ((lhd.type != LBR__C_TYP_IOBJ && lhd.type != LBR__C_TYP_ISHSTB) | |
463 | || bfd_getl32 (lhd.majorid) != 6 | |
464 | || lhd.nindex != 2) | |
465 | { | |
466 | bfd_set_error (bfd_error_wrong_format); | |
467 | return NULL; | |
468 | } | |
469 | break; | |
a6163c10 TG |
470 | case vms_lib_txt: |
471 | if ((lhd.type != LBR__C_TYP_TXT | |
472 | && lhd.type != LBR__C_TYP_MLB | |
473 | && lhd.type != LBR__C_TYP_HLP) | |
474 | || bfd_getl32 (lhd.majorid) != 3 | |
475 | || lhd.nindex != 1) | |
476 | { | |
477 | bfd_set_error (bfd_error_wrong_format); | |
478 | return NULL; | |
479 | } | |
480 | break; | |
481 | default: | |
482 | abort (); | |
483 | } | |
484 | ||
485 | /* Allocate and initialize private data. */ | |
486 | tdata_hold = bfd_libdata (abfd); | |
487 | tdata = (struct lib_tdata *) bfd_zalloc (abfd, sizeof (struct lib_tdata)); | |
488 | if (tdata == NULL) | |
489 | return NULL; | |
490 | abfd->tdata.any = (void *)tdata; | |
491 | tdata->ver = bfd_getl32 (lhd.majorid); | |
492 | tdata->mhd_size = MHD__C_USRDAT + lhd.mhdusz; | |
493 | tdata->type = lhd.type; | |
494 | tdata->kind = kind; | |
495 | ||
496 | /* Read indexes. */ | |
497 | tdata->nbr_modules = bfd_getl32 (lhd.modcnt); | |
8e57e1d1 TG |
498 | tdata->artdata.symdef_count = bfd_getl32 (lhd.idxcnt) - tdata->nbr_modules; |
499 | nbr_ent = tdata->nbr_modules; | |
500 | tdata->modules = vms_lib_read_index (abfd, 0, &nbr_ent); | |
501 | if (tdata->modules == NULL || nbr_ent != tdata->nbr_modules) | |
a6163c10 TG |
502 | goto err; |
503 | if (lhd.nindex == 2) | |
504 | { | |
8e57e1d1 TG |
505 | nbr_ent = tdata->artdata.symdef_count; |
506 | tdata->artdata.symdefs = vms_lib_read_index (abfd, 1, &nbr_ent); | |
507 | if (tdata->artdata.symdefs == NULL) | |
508 | goto err; | |
509 | /* Only IA64 archives may have more entries in the index that what | |
510 | was declared. */ | |
511 | if (nbr_ent != tdata->artdata.symdef_count | |
512 | && kind != vms_lib_ia64) | |
a6163c10 | 513 | goto err; |
8e57e1d1 | 514 | tdata->artdata.symdef_count = nbr_ent; |
a6163c10 TG |
515 | } |
516 | tdata->cache = bfd_zalloc (abfd, sizeof (bfd *) * tdata->nbr_modules); | |
517 | if (tdata->cache == NULL) | |
518 | goto err; | |
519 | ||
520 | /* Read DCX submaps. */ | |
521 | dcxvbn = bfd_getl32 (lhd.dcxmapvbn); | |
522 | if (dcxvbn != 0) | |
523 | { | |
524 | unsigned char buf_reclen[4]; | |
525 | unsigned int reclen; | |
526 | unsigned char *buf; | |
527 | struct vms_dcxmap *map; | |
528 | unsigned int sbm_off; | |
529 | unsigned int i; | |
530 | ||
531 | if (bfd_seek (abfd, (dcxvbn - 1) * VMS_BLOCK_SIZE, SEEK_SET) != 0 | |
532 | || bfd_bread (buf_reclen, sizeof (buf_reclen), abfd) | |
533 | != sizeof (buf_reclen)) | |
534 | goto err; | |
535 | reclen = bfd_getl32 (buf_reclen); | |
536 | buf = bfd_malloc (reclen); | |
537 | if (buf == NULL) | |
538 | goto err; | |
539 | if (bfd_bread (buf, reclen, abfd) != reclen) | |
540 | { | |
541 | free (buf); | |
542 | goto err; | |
543 | } | |
544 | map = (struct vms_dcxmap *)buf; | |
545 | tdata->nbr_dcxsbm = bfd_getl16 (map->nsubs); | |
546 | sbm_off = bfd_getl16 (map->sub0); | |
547 | tdata->dcxsbm = (struct dcxsbm_desc *)bfd_alloc | |
548 | (abfd, tdata->nbr_dcxsbm * sizeof (struct dcxsbm_desc)); | |
549 | for (i = 0; i < tdata->nbr_dcxsbm; i++) | |
550 | { | |
551 | struct vms_dcxsbm *sbm = (struct vms_dcxsbm *) (buf + sbm_off); | |
552 | struct dcxsbm_desc *sbmdesc = &tdata->dcxsbm[i]; | |
553 | unsigned int sbm_len; | |
554 | unsigned int sbm_sz; | |
ab94b07c | 555 | unsigned int off; |
a6163c10 TG |
556 | unsigned char *data = (unsigned char *)sbm; |
557 | unsigned char *buf1; | |
558 | unsigned int l, j; | |
559 | ||
560 | sbm_sz = bfd_getl16 (sbm->size); | |
561 | sbm_off += sbm_sz; | |
562 | BFD_ASSERT (sbm_off <= reclen); | |
563 | ||
564 | sbmdesc->min_char = sbm->min_char; | |
565 | BFD_ASSERT (sbmdesc->min_char == 0); | |
566 | sbmdesc->max_char = sbm->max_char; | |
567 | sbm_len = sbmdesc->max_char - sbmdesc->min_char + 1; | |
568 | l = (2 * sbm_len + 7) / 8; | |
ab94b07c TG |
569 | BFD_ASSERT |
570 | (sbm_sz >= sizeof (struct vms_dcxsbm) + l + 3 * sbm_len | |
571 | || (tdata->nbr_dcxsbm == 1 | |
572 | && sbm_sz >= sizeof (struct vms_dcxsbm) + l + sbm_len)); | |
a6163c10 TG |
573 | sbmdesc->flags = (unsigned char *)bfd_alloc (abfd, l); |
574 | memcpy (sbmdesc->flags, data + bfd_getl16 (sbm->flags), l); | |
575 | sbmdesc->nodes = (unsigned char *)bfd_alloc (abfd, 2 * sbm_len); | |
576 | memcpy (sbmdesc->nodes, data + bfd_getl16 (sbm->nodes), 2 * sbm_len); | |
ab94b07c TG |
577 | off = bfd_getl16 (sbm->next); |
578 | if (off != 0) | |
579 | { | |
fa23f0f4 | 580 | /* Read the 'next' array. */ |
ab94b07c TG |
581 | sbmdesc->next = (unsigned short *)bfd_alloc |
582 | (abfd, sbm_len * sizeof (unsigned short)); | |
583 | buf1 = data + off; | |
584 | for (j = 0; j < sbm_len; j++) | |
585 | sbmdesc->next[j] = bfd_getl16 (buf1 + j * 2); | |
586 | } | |
587 | else | |
588 | { | |
fa23f0f4 | 589 | /* There is no next array if there is only one submap. */ |
ab94b07c TG |
590 | BFD_ASSERT (tdata->nbr_dcxsbm == 1); |
591 | sbmdesc->next = NULL; | |
592 | } | |
a6163c10 TG |
593 | } |
594 | free (buf); | |
595 | } | |
596 | else | |
597 | { | |
598 | tdata->nbr_dcxsbm = 0; | |
599 | } | |
600 | ||
601 | /* The map is always present. Also mark shared image library. */ | |
602 | abfd->has_armap = TRUE; | |
8e57e1d1 | 603 | if (tdata->type == LBR__C_TYP_ESHSTB || tdata->type == LBR__C_TYP_ISHSTB) |
a6163c10 TG |
604 | abfd->is_thin_archive = TRUE; |
605 | ||
606 | return abfd->xvec; | |
607 | ||
608 | err: | |
609 | bfd_release (abfd, tdata); | |
610 | abfd->tdata.any = (void *)tdata_hold;; | |
611 | return NULL; | |
612 | } | |
613 | ||
614 | /* Standard function for alpha libraries. */ | |
615 | ||
616 | const bfd_target * | |
617 | _bfd_vms_lib_alpha_archive_p (bfd *abfd) | |
618 | { | |
619 | return _bfd_vms_lib_archive_p (abfd, vms_lib_alpha); | |
620 | } | |
621 | ||
622 | /* Standard function for text libraries. */ | |
623 | ||
624 | static const bfd_target * | |
625 | _bfd_vms_lib_txt_archive_p (bfd *abfd) | |
626 | { | |
627 | return _bfd_vms_lib_archive_p (abfd, vms_lib_txt); | |
628 | } | |
629 | ||
630 | /* Standard bfd function. */ | |
631 | ||
632 | bfd_boolean | |
633 | _bfd_vms_lib_mkarchive (bfd *abfd) | |
634 | { | |
635 | struct lib_tdata *tdata; | |
636 | ||
637 | tdata = (struct lib_tdata *) bfd_zalloc (abfd, sizeof (struct lib_tdata)); | |
638 | if (tdata == NULL) | |
639 | return FALSE; | |
640 | ||
641 | abfd->tdata.any = (void *)tdata; | |
642 | tdata->ver = 3; | |
643 | tdata->mhd_size = sizeof (struct vms_mhd); | |
644 | tdata->type = LBR__C_TYP_EOBJ; | |
645 | ||
646 | tdata->nbr_modules = 0; | |
8e57e1d1 | 647 | tdata->artdata.symdef_count = 0; |
a6163c10 | 648 | tdata->modules = NULL; |
8e57e1d1 | 649 | tdata->artdata.symdefs = NULL; |
a6163c10 TG |
650 | tdata->cache = NULL; |
651 | ||
652 | return TRUE; | |
653 | } | |
654 | ||
655 | /* Find NAME in the symbol index. Return the index. */ | |
656 | ||
657 | symindex | |
658 | _bfd_vms_lib_find_symbol (bfd *abfd, const char *name) | |
659 | { | |
660 | struct lib_tdata *tdata = bfd_libdata (abfd); | |
8e57e1d1 | 661 | carsym *syms = tdata->artdata.symdefs; |
a6163c10 TG |
662 | int lo, hi; |
663 | ||
664 | /* Open-coded binary search for speed. */ | |
665 | lo = 0; | |
8e57e1d1 | 666 | hi = tdata->artdata.symdef_count - 1; |
a6163c10 TG |
667 | |
668 | while (lo <= hi) | |
669 | { | |
670 | int mid = lo + (hi - lo) / 2; | |
671 | int diff; | |
672 | ||
8e57e1d1 | 673 | diff = (char)(name[0] - syms[mid].name[0]); |
a6163c10 | 674 | if (diff == 0) |
8e57e1d1 | 675 | diff = strcmp (name, syms[mid].name); |
a6163c10 | 676 | if (diff == 0) |
8e57e1d1 | 677 | return mid; |
a6163c10 TG |
678 | else if (diff < 0) |
679 | hi = mid - 1; | |
680 | else | |
681 | lo = mid + 1; | |
682 | } | |
8e57e1d1 | 683 | return BFD_NO_MORE_SYMBOLS; |
a6163c10 TG |
684 | } |
685 | ||
686 | /* IO vector for archive member. Need that because members are not linearly | |
687 | stored in archives. */ | |
688 | ||
689 | struct vms_lib_iovec | |
690 | { | |
691 | /* Current offset. */ | |
692 | ufile_ptr where; | |
693 | ||
694 | /* Length of the module, when known. */ | |
695 | ufile_ptr file_len; | |
696 | ||
697 | /* Current position in the record from bfd_bread point of view (ie, after | |
698 | decompression). 0 means that no data byte have been read, -2 and -1 | |
699 | are reserved for the length word. */ | |
700 | int rec_pos; | |
701 | #define REC_POS_NL -4 | |
702 | #define REC_POS_PAD -3 | |
703 | #define REC_POS_LEN0 -2 | |
704 | #define REC_POS_LEN1 -1 | |
705 | ||
706 | /* Record length. */ | |
707 | unsigned short rec_len; | |
708 | /* Number of bytes to read in the current record. */ | |
709 | unsigned short rec_rem; | |
710 | /* Offset of the next block. */ | |
711 | file_ptr next_block; | |
712 | /* Current *data* offset in the data block. */ | |
713 | unsigned short blk_off; | |
714 | ||
715 | /* Offset of the first block. Extracted from the index. */ | |
716 | file_ptr first_block; | |
717 | ||
718 | /* Initial next_block. Extracted when the MHD is read. */ | |
719 | file_ptr init_next_block; | |
720 | /* Initial blk_off, once the MHD is read. */ | |
721 | unsigned short init_blk_off; | |
722 | ||
723 | /* Used to store any 3 byte record, which could be the EOF pattern. */ | |
724 | unsigned char pattern[4]; | |
725 | ||
726 | /* DCX. */ | |
727 | struct dcxsbm_desc *dcxsbms; | |
728 | /* Current submap. */ | |
729 | struct dcxsbm_desc *dcx_sbm; | |
730 | /* Current offset in the submap. */ | |
731 | unsigned int dcx_offset; | |
732 | int dcx_pos; | |
733 | ||
734 | /* Compressed buffer. */ | |
735 | unsigned char *dcx_buf; | |
736 | /* Size of the buffer. Used to resize. */ | |
737 | unsigned int dcx_max; | |
738 | /* Number of valid bytes in the buffer. */ | |
739 | unsigned int dcx_rlen; | |
740 | }; | |
741 | ||
742 | /* Return the current position. */ | |
743 | ||
744 | static file_ptr | |
745 | vms_lib_btell (struct bfd *abfd) | |
746 | { | |
747 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; | |
748 | return vec->where; | |
749 | } | |
750 | ||
751 | /* Read the header of the next data block if all bytes of the current block | |
752 | have been read. */ | |
753 | ||
754 | static bfd_boolean | |
755 | vms_lib_read_block (struct bfd *abfd) | |
756 | { | |
757 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; | |
758 | ||
759 | if (vec->blk_off == DATA__LENGTH) | |
760 | { | |
761 | unsigned char hdr[DATA__DATA]; | |
762 | ||
763 | /* Read next block. */ | |
764 | if (bfd_seek (abfd->my_archive, vec->next_block, SEEK_SET) != 0) | |
765 | return FALSE; | |
766 | if (bfd_bread (hdr, sizeof (hdr), abfd->my_archive) != sizeof (hdr)) | |
767 | return FALSE; | |
768 | vec->next_block = (bfd_getl32 (hdr + 2) - 1) * VMS_BLOCK_SIZE; | |
769 | vec->blk_off = sizeof (hdr); | |
770 | } | |
771 | return TRUE; | |
772 | } | |
773 | ||
774 | /* Read NBYTES from ABFD into BUF if not NULL. If BUF is NULL, bytes are | |
775 | not stored. Read linearly from the library, but handle blocks. This | |
776 | function does not handle records nor EOF. */ | |
777 | ||
778 | static file_ptr | |
779 | vms_lib_bread_raw (struct bfd *abfd, void *buf, file_ptr nbytes) | |
780 | { | |
781 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; | |
782 | file_ptr res; | |
783 | ||
784 | res = 0; | |
785 | while (nbytes > 0) | |
786 | { | |
787 | unsigned int l; | |
788 | ||
789 | /* Be sure the current data block is read. */ | |
790 | if (!vms_lib_read_block (abfd)) | |
791 | return -1; | |
792 | ||
ddfb684a | 793 | /* Do not read past the data block, do not read more than requested. */ |
a6163c10 TG |
794 | l = DATA__LENGTH - vec->blk_off; |
795 | if (l > nbytes) | |
796 | l = nbytes; | |
797 | if (l == 0) | |
798 | return 0; | |
799 | if (buf != NULL) | |
800 | { | |
ddfb684a | 801 | /* Really read into BUF. */ |
a6163c10 TG |
802 | if (bfd_bread (buf, l, abfd->my_archive) != l) |
803 | return -1; | |
804 | } | |
805 | else | |
806 | { | |
ddfb684a | 807 | /* Make as if we are reading. */ |
a6163c10 TG |
808 | if (bfd_seek (abfd->my_archive, l, SEEK_CUR) != 0) |
809 | return -1; | |
810 | } | |
811 | ||
812 | if (buf != NULL) | |
813 | buf += l; | |
814 | vec->blk_off += l; | |
815 | nbytes -= l; | |
816 | res += l; | |
817 | } | |
818 | return res; | |
819 | } | |
820 | ||
821 | /* Decompress NBYTES from VEC. Store the bytes into BUF if not NULL. */ | |
822 | ||
823 | static file_ptr | |
824 | vms_lib_dcx (struct vms_lib_iovec *vec, unsigned char *buf, file_ptr nbytes) | |
825 | { | |
826 | struct dcxsbm_desc *sbm; | |
827 | unsigned int i; | |
828 | unsigned int offset; | |
829 | unsigned int j; | |
830 | file_ptr res = 0; | |
831 | ||
832 | /* The loop below expect to deliver at least one byte. */ | |
833 | if (nbytes == 0) | |
834 | return 0; | |
835 | ||
836 | /* Get the current state. */ | |
837 | sbm = vec->dcx_sbm; | |
838 | offset = vec->dcx_offset; | |
839 | j = vec->dcx_pos & 7; | |
840 | ||
841 | for (i = vec->dcx_pos >> 3; i < vec->dcx_rlen; i++) | |
842 | { | |
843 | unsigned char b = vec->dcx_buf[i]; | |
844 | ||
845 | for (; j < 8; j++) | |
846 | { | |
847 | if (b & (1 << j)) | |
848 | offset++; | |
849 | if (!(sbm->flags[offset >> 3] & (1 << (offset & 7)))) | |
850 | { | |
851 | unsigned int n_offset = sbm->nodes[offset]; | |
852 | if (n_offset == 0) | |
853 | { | |
854 | /* End of buffer. Stay where we are. */ | |
855 | vec->dcx_pos = (i << 3) + j; | |
856 | if (b & (1 << j)) | |
857 | offset--; | |
858 | vec->dcx_offset = offset; | |
859 | vec->dcx_sbm = sbm; | |
860 | return res; | |
861 | } | |
862 | offset = 2 * n_offset; | |
863 | } | |
864 | else | |
865 | { | |
866 | unsigned char v = sbm->nodes[offset]; | |
867 | ||
ab94b07c TG |
868 | if (sbm->next != NULL) |
869 | sbm = vec->dcxsbms + sbm->next[v]; | |
a6163c10 TG |
870 | offset = 0; |
871 | res++; | |
872 | ||
873 | if (buf) | |
874 | { | |
875 | *buf++ = v; | |
876 | nbytes--; | |
877 | ||
878 | if (nbytes == 0) | |
879 | { | |
880 | vec->dcx_pos = (i << 3) + j + 1; | |
881 | vec->dcx_offset = offset; | |
882 | vec->dcx_sbm = sbm; | |
883 | ||
884 | return res; | |
885 | } | |
886 | } | |
887 | } | |
888 | } | |
889 | j = 0; | |
890 | } | |
891 | return -1; | |
892 | } | |
893 | ||
894 | /* Standard IOVEC function. */ | |
895 | ||
896 | static file_ptr | |
897 | vms_lib_bread (struct bfd *abfd, void *buf, file_ptr nbytes) | |
898 | { | |
899 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; | |
900 | file_ptr res; | |
901 | file_ptr chunk; | |
902 | ||
903 | /* Do not read past the end. */ | |
904 | if (vec->where >= vec->file_len) | |
905 | return 0; | |
906 | ||
907 | res = 0; | |
908 | while (nbytes > 0) | |
909 | { | |
910 | if (vec->rec_rem == 0) | |
911 | { | |
912 | unsigned char blen[2]; | |
913 | ||
914 | /* Read record length. */ | |
915 | if (vms_lib_bread_raw (abfd, &blen, sizeof (blen)) != sizeof (blen)) | |
916 | return -1; | |
917 | vec->rec_len = bfd_getl16 (blen); | |
918 | if (bfd_libdata (abfd->my_archive)->kind == vms_lib_txt) | |
919 | { | |
920 | /* Discard record size and align byte. */ | |
921 | vec->rec_pos = 0; | |
922 | vec->rec_rem = vec->rec_len; | |
923 | } | |
924 | else | |
925 | { | |
926 | /* Prepend record size. */ | |
927 | vec->rec_pos = REC_POS_LEN0; | |
928 | vec->rec_rem = (vec->rec_len + 1) & ~1; /* With align byte. */ | |
929 | } | |
930 | if (vec->rec_len == 3) | |
931 | { | |
932 | /* Possibly end of file. Check the pattern. */ | |
933 | if (vms_lib_bread_raw (abfd, vec->pattern, 4) != 4) | |
934 | return -1; | |
935 | if (!memcmp (vec->pattern, eotdesc + 2, 3)) | |
936 | { | |
937 | /* This is really an EOF. */ | |
938 | vec->where += res; | |
939 | vec->file_len = vec->where; | |
940 | return res; | |
941 | } | |
942 | } | |
943 | ||
944 | if (vec->dcxsbms != NULL) | |
945 | { | |
946 | /* This is a compressed member. */ | |
947 | unsigned int len; | |
948 | file_ptr elen; | |
949 | ||
950 | /* Be sure there is enough room for the expansion. */ | |
951 | len = (vec->rec_len + 1) & ~1; | |
952 | if (len > vec->dcx_max) | |
953 | { | |
954 | while (len > vec->dcx_max) | |
955 | vec->dcx_max *= 2; | |
956 | vec->dcx_buf = bfd_alloc (abfd, vec->dcx_max); | |
957 | if (vec->dcx_buf == NULL) | |
958 | return -1; | |
959 | } | |
960 | ||
961 | /* Read the compressed record. */ | |
962 | vec->dcx_rlen = len; | |
963 | if (vec->rec_len == 3) | |
964 | { | |
965 | /* Already read. */ | |
966 | memcpy (vec->dcx_buf, vec->pattern, 3); | |
967 | } | |
968 | else | |
969 | { | |
970 | elen = vms_lib_bread_raw (abfd, vec->dcx_buf, len); | |
971 | if (elen != len) | |
972 | return -1; | |
973 | } | |
974 | ||
975 | /* Dummy expansion to get the expanded length. */ | |
976 | vec->dcx_offset = 0; | |
977 | vec->dcx_sbm = vec->dcxsbms; | |
978 | vec->dcx_pos = 0; | |
979 | elen = vms_lib_dcx (vec, NULL, 0x10000); | |
980 | if (elen < 0) | |
981 | return -1; | |
982 | vec->rec_len = elen; | |
983 | vec->rec_rem = elen; | |
984 | ||
985 | /* Reset the state. */ | |
986 | vec->dcx_offset = 0; | |
987 | vec->dcx_sbm = vec->dcxsbms; | |
988 | vec->dcx_pos = 0; | |
989 | } | |
990 | } | |
991 | if (vec->rec_pos < 0) | |
992 | { | |
993 | unsigned char c; | |
994 | switch (vec->rec_pos) | |
995 | { | |
996 | case REC_POS_LEN0: | |
997 | c = vec->rec_len & 0xff; | |
998 | vec->rec_pos = REC_POS_LEN1; | |
999 | break; | |
1000 | case REC_POS_LEN1: | |
1001 | c = (vec->rec_len >> 8) & 0xff; | |
1002 | vec->rec_pos = 0; | |
1003 | break; | |
1004 | case REC_POS_PAD: | |
1005 | c = 0; | |
1006 | vec->rec_rem = 0; | |
1007 | break; | |
1008 | case REC_POS_NL: | |
1009 | c = '\n'; | |
1010 | vec->rec_rem = 0; | |
1011 | break; | |
1012 | default: | |
1013 | abort (); | |
1014 | } | |
1015 | if (buf != NULL) | |
1016 | { | |
1017 | *(unsigned char *)buf = c; | |
1018 | buf++; | |
1019 | } | |
1020 | nbytes--; | |
1021 | res++; | |
1022 | continue; | |
1023 | } | |
1024 | ||
1025 | if (nbytes > vec->rec_rem) | |
1026 | chunk = vec->rec_rem; | |
1027 | else | |
1028 | chunk = nbytes; | |
1029 | ||
1030 | if (vec->dcxsbms != NULL) | |
1031 | { | |
1032 | /* Optimize the stat() case: no need to decompress again as we | |
1033 | know the length. */ | |
1034 | if (!(buf == NULL && chunk == vec->rec_rem)) | |
1035 | chunk = vms_lib_dcx (vec, buf, chunk); | |
1036 | } | |
1037 | else | |
1038 | { | |
1039 | if (vec->rec_len == 3) | |
1040 | { | |
1041 | if (buf != NULL) | |
1042 | memcpy (buf, vec->pattern + vec->rec_pos, chunk); | |
1043 | } | |
1044 | else | |
1045 | chunk = vms_lib_bread_raw (abfd, buf, chunk); | |
1046 | } | |
1047 | if (chunk < 0) | |
1048 | return -1; | |
1049 | res += chunk; | |
1050 | if (buf != NULL) | |
1051 | buf += chunk; | |
1052 | nbytes -= chunk; | |
1053 | vec->rec_pos += chunk; | |
1054 | vec->rec_rem -= chunk; | |
1055 | ||
1056 | if (vec->rec_rem == 0) | |
1057 | { | |
ddfb684a | 1058 | /* End of record reached. */ |
a6163c10 TG |
1059 | if (bfd_libdata (abfd->my_archive)->kind == vms_lib_txt) |
1060 | { | |
1061 | if ((vec->rec_len & 1) == 1 | |
1062 | && vec->rec_len != 3 | |
1063 | && vec->dcxsbms == NULL) | |
1064 | { | |
1065 | /* Eat the pad byte. */ | |
1066 | unsigned char pad; | |
1067 | if (vms_lib_bread_raw (abfd, &pad, 1) != 1) | |
1068 | return -1; | |
1069 | } | |
1070 | vec->rec_pos = REC_POS_NL; | |
1071 | vec->rec_rem = 1; | |
1072 | } | |
1073 | else | |
1074 | { | |
1075 | if ((vec->rec_len & 1) == 1 && vec->dcxsbms != NULL) | |
1076 | { | |
1077 | vec->rec_pos = REC_POS_PAD; | |
1078 | vec->rec_rem = 1; | |
1079 | } | |
1080 | } | |
1081 | } | |
1082 | } | |
1083 | vec->where += res; | |
1084 | return res; | |
1085 | } | |
1086 | ||
1087 | /* Standard function, but we currently only handle the rewind case. */ | |
1088 | ||
1089 | static int | |
1090 | vms_lib_bseek (struct bfd *abfd, file_ptr offset, int whence) | |
1091 | { | |
1092 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; | |
1093 | ||
1094 | if (whence == SEEK_SET && offset == 0) | |
1095 | { | |
1096 | vec->where = 0; | |
1097 | vec->rec_rem = 0; | |
1098 | vec->dcx_pos = -1; | |
1099 | vec->blk_off = vec->init_blk_off; | |
1100 | vec->next_block = vec->init_next_block; | |
1101 | ||
1102 | if (bfd_seek (abfd->my_archive, vec->first_block, SEEK_SET) != 0) | |
1103 | return -1; | |
1104 | } | |
1105 | else | |
1106 | abort (); | |
1107 | return 0; | |
1108 | } | |
1109 | ||
1110 | static file_ptr | |
1111 | vms_lib_bwrite (struct bfd *abfd ATTRIBUTE_UNUSED, | |
1112 | const void *where ATTRIBUTE_UNUSED, | |
1113 | file_ptr nbytes ATTRIBUTE_UNUSED) | |
1114 | { | |
1115 | return -1; | |
1116 | } | |
1117 | ||
1118 | static int | |
1119 | vms_lib_bclose (struct bfd *abfd) | |
1120 | { | |
1121 | abfd->iostream = NULL; | |
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | static int | |
1126 | vms_lib_bflush (struct bfd *abfd ATTRIBUTE_UNUSED) | |
1127 | { | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int | |
1132 | vms_lib_bstat (struct bfd *abfd ATTRIBUTE_UNUSED, | |
1133 | struct stat *sb ATTRIBUTE_UNUSED) | |
1134 | { | |
1135 | /* Not supported. */ | |
1136 | return 0; | |
1137 | } | |
1138 | ||
1139 | static void * | |
1140 | vms_lib_bmmap (struct bfd *abfd ATTRIBUTE_UNUSED, | |
1141 | void *addr ATTRIBUTE_UNUSED, | |
1142 | bfd_size_type len ATTRIBUTE_UNUSED, | |
1143 | int prot ATTRIBUTE_UNUSED, | |
1144 | int flags ATTRIBUTE_UNUSED, | |
1145 | file_ptr offset ATTRIBUTE_UNUSED) | |
1146 | { | |
1147 | return (void *) -1; | |
1148 | } | |
1149 | ||
1150 | static const struct bfd_iovec vms_lib_iovec = { | |
1151 | &vms_lib_bread, &vms_lib_bwrite, &vms_lib_btell, &vms_lib_bseek, | |
1152 | &vms_lib_bclose, &vms_lib_bflush, &vms_lib_bstat, &vms_lib_bmmap | |
1153 | }; | |
1154 | ||
1155 | /* Open a library module. FILEPOS is the position of the module header. */ | |
1156 | ||
1157 | static bfd_boolean | |
1158 | vms_lib_bopen (bfd *el, file_ptr filepos) | |
1159 | { | |
1160 | struct vms_lib_iovec *vec; | |
1161 | char buf[256]; | |
1162 | struct vms_mhd *mhd; | |
1163 | struct lib_tdata *tdata = bfd_libdata (el->my_archive); | |
1164 | unsigned int len; | |
1165 | ||
1166 | /* Allocate and initialized the iovec. */ | |
1167 | vec = bfd_zalloc (el, sizeof (*vec)); | |
1168 | if (vec == NULL) | |
1169 | return FALSE; | |
1170 | ||
1171 | el->iostream = vec; | |
1172 | el->iovec = &vms_lib_iovec; | |
1173 | ||
1174 | /* File length is not known. */ | |
1175 | vec->file_len = -1; | |
1176 | ||
1177 | /* Read the first data block. */ | |
1178 | vec->next_block = filepos & ~(VMS_BLOCK_SIZE - 1); | |
1179 | vec->blk_off = DATA__LENGTH; | |
1180 | if (!vms_lib_read_block (el)) | |
1181 | return FALSE; | |
1182 | ||
1183 | /* Prepare to read the first record. */ | |
1184 | vec->blk_off = filepos & (VMS_BLOCK_SIZE - 1); | |
1185 | vec->rec_rem = 0; | |
1186 | if (bfd_seek (el->my_archive, filepos, SEEK_SET) != 0) | |
1187 | return FALSE; | |
1188 | ||
1189 | /* Read Record length + MHD + align byte. */ | |
1190 | len = tdata->mhd_size; | |
1191 | if (vms_lib_bread_raw (el, buf, 2) != 2) | |
8e57e1d1 | 1192 | return FALSE; |
a6163c10 | 1193 | if (bfd_getl16 (buf) != len) |
8e57e1d1 | 1194 | return FALSE; |
a6163c10 TG |
1195 | len = (len + 1) & ~1; |
1196 | BFD_ASSERT (len <= sizeof (buf)); | |
1197 | if (vms_lib_bread_raw (el, buf, len) != len) | |
8e57e1d1 | 1198 | return FALSE; |
a6163c10 TG |
1199 | |
1200 | /* Get info from mhd. */ | |
1201 | mhd = (struct vms_mhd *)buf; | |
8e57e1d1 TG |
1202 | /* Check id. */ |
1203 | if (mhd->id != MHD__C_MHDID) | |
1204 | return FALSE; | |
fa23f0f4 | 1205 | if (len >= MHD__C_MHDLEN + 1) |
a6163c10 TG |
1206 | el->selective_search = (mhd->objstat & MHD__M_SELSRC) ? 1 : 0; |
1207 | el->mtime = vms_rawtime_to_time_t (mhd->datim); | |
1208 | el->mtime_set = TRUE; | |
1209 | ||
1210 | /* Reinit the iovec so that seek() will point to the first record after | |
1211 | the mhd. */ | |
1212 | vec->where = 0; | |
1213 | vec->init_blk_off = vec->blk_off; | |
1214 | vec->init_next_block = vec->next_block; | |
1215 | vec->first_block = bfd_tell (el->my_archive); | |
1216 | vec->dcxsbms = bfd_libdata (el->my_archive)->dcxsbm; | |
1217 | ||
1218 | if (vec->dcxsbms != NULL) | |
1219 | { | |
1220 | /* Handle DCX. */ | |
1221 | vec->dcx_max = 10 * 1024; | |
1222 | vec->dcx_buf = bfd_alloc (el, vec->dcx_max); | |
1223 | vec->dcx_pos = -1; | |
1224 | if (vec->dcx_buf == NULL) | |
1225 | return -1; | |
1226 | } | |
1227 | return TRUE; | |
1228 | } | |
1229 | ||
8e57e1d1 | 1230 | /* Get member MODIDX. Return NULL in case of error. */ |
a6163c10 | 1231 | |
8e57e1d1 TG |
1232 | static bfd * |
1233 | _bfd_vms_lib_get_module (bfd *abfd, unsigned int modidx) | |
a6163c10 TG |
1234 | { |
1235 | struct lib_tdata *tdata = bfd_libdata (abfd); | |
1236 | bfd *res; | |
8e57e1d1 | 1237 | file_ptr file_off; |
a6163c10 | 1238 | |
8e57e1d1 TG |
1239 | /* Sanity check. */ |
1240 | if (modidx >= tdata->nbr_modules) | |
a6163c10 TG |
1241 | return NULL; |
1242 | ||
1243 | /* Already loaded. */ | |
8e57e1d1 TG |
1244 | if (tdata->cache[modidx]) |
1245 | return tdata->cache[modidx]; | |
a6163c10 TG |
1246 | |
1247 | /* Build it. */ | |
8e57e1d1 TG |
1248 | file_off = tdata->modules[modidx].file_offset; |
1249 | if (tdata->type != LBR__C_TYP_IOBJ) | |
1250 | { | |
1251 | res = _bfd_create_empty_archive_element_shell (abfd); | |
1252 | if (res == NULL) | |
1253 | return NULL; | |
a6163c10 | 1254 | |
8e57e1d1 TG |
1255 | /* Special reader to deal with data blocks. */ |
1256 | if (!vms_lib_bopen (res, file_off)) | |
1257 | return NULL; | |
1258 | } | |
1259 | else | |
1260 | { | |
1261 | char buf[256]; | |
1262 | struct vms_mhd *mhd; | |
1263 | struct areltdata *arelt; | |
1264 | ||
1265 | /* Sanity check. The MHD must be big enough to contain module size. */ | |
1266 | if (tdata->mhd_size < offsetof (struct vms_mhd, modsize) + 4) | |
1267 | return NULL; | |
1268 | ||
1269 | /* Read the MHD now. */ | |
1270 | if (bfd_seek (abfd, file_off, SEEK_SET) != 0) | |
1271 | return NULL; | |
1272 | if (bfd_bread (buf, tdata->mhd_size, abfd) != tdata->mhd_size) | |
1273 | return NULL; | |
1274 | ||
1275 | res = _bfd_create_empty_archive_element_shell (abfd); | |
1276 | if (res == NULL) | |
1277 | return NULL; | |
1278 | arelt = bfd_zalloc (res, sizeof (*arelt)); | |
1279 | if (arelt == NULL) | |
1280 | return NULL; | |
1281 | res->arelt_data = arelt; | |
1282 | ||
1283 | /* Get info from mhd. */ | |
1284 | mhd = (struct vms_mhd *)buf; | |
1285 | if (mhd->id != MHD__C_MHDID) | |
1286 | return NULL; | |
1287 | if (tdata->mhd_size >= offsetof (struct vms_mhd, objstat) + 1) | |
1288 | res->selective_search = (mhd->objstat & MHD__M_SELSRC) ? 1 : 0; | |
1289 | res->mtime = vms_rawtime_to_time_t (mhd->datim); | |
1290 | res->mtime_set = TRUE; | |
1291 | ||
1292 | arelt->parsed_size = bfd_getl32 (mhd->modsize); | |
1293 | ||
1294 | /* No need for a special reader as members are stored linearly. | |
1295 | Just skip the MHD. */ | |
1296 | res->origin = file_off + tdata->mhd_size; | |
1297 | } | |
1298 | ||
1299 | res->filename = tdata->modules[modidx].name; | |
1300 | ||
1301 | tdata->cache[modidx] = res; | |
a6163c10 TG |
1302 | |
1303 | return res; | |
1304 | } | |
1305 | ||
8e57e1d1 TG |
1306 | /* Standard function: get member at IDX. */ |
1307 | ||
1308 | bfd * | |
1309 | _bfd_vms_lib_get_elt_at_index (bfd *abfd, symindex symidx) | |
1310 | { | |
1311 | struct lib_tdata *tdata = bfd_libdata (abfd); | |
1312 | file_ptr file_off; | |
1313 | unsigned int modidx; | |
1314 | ||
1315 | /* Check symidx. */ | |
1316 | if (symidx > tdata->artdata.symdef_count) | |
1317 | return NULL; | |
1318 | file_off = tdata->artdata.symdefs[symidx].file_offset; | |
1319 | ||
1320 | /* Linear-scan. */ | |
1321 | for (modidx = 0; modidx < tdata->nbr_modules; modidx++) | |
1322 | { | |
1323 | if (tdata->modules[modidx].file_offset == file_off) | |
1324 | break; | |
1325 | } | |
1326 | if (modidx >= tdata->nbr_modules) | |
1327 | return NULL; | |
1328 | ||
1329 | return _bfd_vms_lib_get_module (abfd, modidx); | |
1330 | } | |
1331 | ||
a6163c10 TG |
1332 | /* Elements of an imagelib are stubs. You can get the real image with this |
1333 | function. */ | |
1334 | ||
1335 | bfd * | |
1336 | _bfd_vms_lib_get_imagelib_file (bfd *el) | |
1337 | { | |
1338 | bfd *archive = el->my_archive; | |
1339 | const char *modname = el->filename; | |
1340 | int modlen = strlen (modname); | |
1341 | char *filename; | |
1342 | int j; | |
1343 | bfd *res; | |
1344 | ||
1345 | /* Convert module name to lower case and append '.exe'. */ | |
1346 | filename = bfd_alloc (el, modlen + 5); | |
1347 | if (filename == NULL) | |
1348 | return NULL; | |
1349 | for (j = 0; j < modlen; j++) | |
1350 | if (ISALPHA (modname[j])) | |
1351 | filename[j] = TOLOWER (modname[j]); | |
1352 | else | |
1353 | filename[j] = modname[j]; | |
1354 | memcpy (filename + modlen, ".exe", 5); | |
1355 | ||
1356 | filename = _bfd_append_relative_path (archive, filename); | |
1357 | if (filename == NULL) | |
1358 | return NULL; | |
1359 | res = bfd_openr (filename, NULL); | |
1360 | ||
1361 | if (res == NULL) | |
1362 | { | |
1363 | (*_bfd_error_handler)(_("could not open shared image '%s' from '%s'"), | |
1364 | filename, archive->filename); | |
1365 | bfd_release (archive, filename); | |
1366 | return NULL; | |
1367 | } | |
1368 | ||
1369 | /* FIXME: put it in a cache ? */ | |
1370 | return res; | |
1371 | } | |
1372 | ||
1373 | /* Standard function. */ | |
1374 | ||
1375 | bfd * | |
1376 | _bfd_vms_lib_openr_next_archived_file (bfd *archive, | |
1377 | bfd *last_file) | |
1378 | { | |
1379 | unsigned int idx; | |
1380 | bfd *res; | |
1381 | ||
1382 | if (!last_file) | |
1383 | idx = 0; | |
1384 | else | |
1385 | idx = last_file->proxy_origin + 1; | |
1386 | ||
1387 | if (idx >= bfd_libdata (archive)->nbr_modules) | |
1388 | { | |
1389 | bfd_set_error (bfd_error_no_more_archived_files); | |
1390 | return NULL; | |
1391 | } | |
1392 | ||
8e57e1d1 | 1393 | res = _bfd_vms_lib_get_module (archive, idx); |
a6163c10 TG |
1394 | if (res == NULL) |
1395 | return res; | |
1396 | res->proxy_origin = idx; | |
1397 | return res; | |
1398 | } | |
1399 | ||
1400 | /* Standard function. Just compute the length. */ | |
1401 | ||
1402 | int | |
1403 | _bfd_vms_lib_generic_stat_arch_elt (bfd *abfd, struct stat *st) | |
1404 | { | |
8e57e1d1 | 1405 | struct lib_tdata *tdata; |
a6163c10 | 1406 | |
8e57e1d1 | 1407 | /* Sanity check. */ |
a6163c10 TG |
1408 | if (abfd->my_archive == NULL) |
1409 | { | |
1410 | bfd_set_error (bfd_error_invalid_operation); | |
1411 | return -1; | |
1412 | } | |
1413 | ||
8e57e1d1 TG |
1414 | tdata = bfd_libdata (abfd->my_archive); |
1415 | if (tdata->type != LBR__C_TYP_IOBJ) | |
a6163c10 | 1416 | { |
8e57e1d1 | 1417 | struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream; |
a6163c10 | 1418 | |
8e57e1d1 TG |
1419 | if (vec->file_len == (ufile_ptr)-1) |
1420 | { | |
1421 | if (vms_lib_bseek (abfd, 0, SEEK_SET) != 0) | |
1422 | return -1; | |
1423 | ||
1424 | /* Compute length. */ | |
1425 | while (vms_lib_bread (abfd, NULL, 1 << 20) > 0) | |
1426 | ; | |
1427 | } | |
1428 | st->st_size = vec->file_len; | |
1429 | } | |
1430 | else | |
1431 | { | |
1432 | st->st_size = ((struct areltdata *)abfd->arelt_data)->parsed_size; | |
a6163c10 TG |
1433 | } |
1434 | ||
a6163c10 TG |
1435 | if (abfd->mtime_set) |
1436 | st->st_mtime = abfd->mtime; | |
1437 | else | |
1438 | st->st_mtime = 0; | |
1439 | st->st_uid = 0; | |
1440 | st->st_gid = 0; | |
1441 | st->st_mode = 0644; | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | /* Internal representation of an index entry. */ | |
1447 | ||
1448 | struct vms_index | |
1449 | { | |
1450 | /* Corresponding archive member. */ | |
1451 | bfd *abfd; | |
1452 | ||
1453 | /* Number of reference to this entry. */ | |
1454 | unsigned int ref; | |
1455 | ||
1456 | /* Length of the key. */ | |
1457 | unsigned short namlen; | |
1458 | ||
1459 | /* Key. */ | |
1460 | const char *name; | |
1461 | }; | |
1462 | ||
1463 | /* Used to sort index entries. */ | |
1464 | ||
1465 | static int | |
1466 | vms_index_cmp (const void *lv, const void *rv) | |
1467 | { | |
1468 | const struct vms_index *l = lv; | |
1469 | const struct vms_index *r = rv; | |
1470 | ||
1471 | return strcmp (l->name, r->name); | |
1472 | } | |
1473 | ||
1474 | /* Maximum number of index blocks level. */ | |
1475 | ||
1476 | #define MAX_LEVEL 10 | |
1477 | ||
1478 | /* Get the size of an index entry. */ | |
1479 | ||
1480 | static unsigned int | |
1481 | get_idxlen (struct vms_index *idx) | |
1482 | { | |
1483 | return 7 + idx->namlen; | |
1484 | } | |
1485 | ||
1486 | /* Write the index. VBN is the first vbn to be used, and will contain | |
1487 | on return the last vbn. | |
1488 | Return TRUE on success. */ | |
1489 | ||
1490 | static bfd_boolean | |
1491 | vms_write_index (bfd *abfd, | |
1492 | struct vms_index *idx, unsigned int nbr, unsigned int *vbn, | |
1493 | unsigned int *topvbn) | |
1494 | { | |
1495 | unsigned int i; | |
1496 | int j; | |
1497 | int level; | |
1498 | struct vms_indexdef *rblk[MAX_LEVEL]; | |
1499 | struct idxblk | |
1500 | { | |
1501 | unsigned int vbn; | |
1502 | unsigned short len; | |
1503 | unsigned short lastlen; | |
1504 | } blk[MAX_LEVEL]; | |
1505 | ||
1506 | if (nbr == 0) | |
1507 | { | |
1508 | if (topvbn != NULL) | |
1509 | *topvbn = 0; | |
1510 | return TRUE; | |
1511 | } | |
1512 | ||
1513 | if (abfd == NULL) | |
1514 | { | |
1515 | /* Sort the index the first time this function is called. */ | |
1516 | qsort (idx, nbr, sizeof (struct vms_index), vms_index_cmp); | |
1517 | } | |
1518 | ||
1519 | /* Allocate first index block. */ | |
1520 | level = 1; | |
1521 | if (abfd != NULL) | |
1522 | rblk[0] = bfd_malloc (sizeof (struct vms_indexdef)); | |
1523 | blk[0].vbn = (*vbn)++; | |
1524 | blk[0].len = 0; | |
1525 | blk[0].lastlen = 0; | |
1526 | ||
1527 | for (i = 0; i < nbr; i++, idx++) | |
1528 | { | |
1529 | unsigned int idxlen = get_idxlen (idx); | |
8e57e1d1 | 1530 | struct vms_idx *en; |
a6163c10 TG |
1531 | int flush = 0; |
1532 | ||
1533 | /* Check if a block might overflow. In this case we will flush this | |
1534 | block and all the blocks below it. */ | |
1535 | for (j = 0; j < level; j++) | |
1536 | if (blk[j].len + blk[j].lastlen + idxlen > INDEXDEF__BLKSIZ) | |
1537 | flush = j + 1; | |
1538 | ||
1539 | for (j = 0; j < level; j++) | |
1540 | { | |
1541 | if (j < flush) | |
1542 | { | |
1543 | /* There is not enough room to write the new entry in this | |
1544 | block or in a parent block. */ | |
1545 | ||
1546 | if (j + 1 == level) | |
1547 | { | |
1548 | BFD_ASSERT (level < MAX_LEVEL); | |
1549 | ||
1550 | /* Need to create a parent. */ | |
1551 | if (abfd != NULL) | |
1552 | { | |
1553 | rblk[level] = bfd_malloc (sizeof (struct vms_indexdef)); | |
1554 | bfd_putl32 (*vbn, rblk[j]->parent); | |
1555 | } | |
1556 | blk[level].vbn = (*vbn)++; | |
1557 | blk[level].len = 0; | |
1558 | blk[level].lastlen = 0; | |
1559 | ||
1560 | level++; | |
1561 | } | |
1562 | ||
1563 | /* Update parent block: write the new entry. */ | |
1564 | if (abfd != NULL) | |
1565 | { | |
8e57e1d1 | 1566 | en = (struct vms_idx *)(rblk[j]->keys + blk[j].len); |
a6163c10 TG |
1567 | memcpy (rblk[j + 1]->keys + blk[j + 1].len, en, |
1568 | blk[j].lastlen); | |
8e57e1d1 TG |
1569 | en = (struct vms_idx *)(rblk[j + 1]->keys + blk[j + 1].len); |
1570 | bfd_putl32 (blk[j].vbn, en->rfa.vbn); | |
1571 | bfd_putl16 (RFADEF__C_INDEX, en->rfa.offset); | |
a6163c10 TG |
1572 | } |
1573 | ||
1574 | if (j + 1 == flush) | |
1575 | { | |
1576 | /* And allocate it. Do it only on the block that won't be | |
1577 | flushed (so that the parent of the parent can be | |
1578 | updated too). */ | |
1579 | blk[j + 1].len += blk[j].lastlen; | |
1580 | blk[j + 1].lastlen = 0; | |
1581 | } | |
1582 | ||
1583 | /* Write this block on the disk. */ | |
1584 | if (abfd != NULL) | |
1585 | { | |
1586 | bfd_putl16 (blk[j].len + blk[j].lastlen, rblk[j]->used); | |
1587 | if (bfd_seek (abfd, (blk[j].vbn - 1) * VMS_BLOCK_SIZE, | |
1588 | SEEK_SET) != 0) | |
1589 | return FALSE; | |
1590 | if (bfd_bwrite (rblk[j], sizeof (struct vms_indexdef), abfd) | |
1591 | != sizeof (struct vms_indexdef)) | |
1592 | return FALSE; | |
1593 | } | |
1594 | ||
1595 | /* Reset this block. */ | |
1596 | blk[j].len = 0; | |
1597 | blk[j].lastlen = 0; | |
1598 | blk[j].vbn = (*vbn)++; | |
1599 | } | |
1600 | ||
1601 | /* Append it to the block. */ | |
1602 | if (j == 0) | |
1603 | { | |
1604 | blk[j].len += blk[j].lastlen; | |
1605 | ||
1606 | if (abfd != NULL) | |
1607 | { | |
8e57e1d1 | 1608 | en = (struct vms_idx *)(rblk[j]->keys + blk[j].len); |
a6163c10 | 1609 | bfd_putl32 ((idx->abfd->proxy_origin / VMS_BLOCK_SIZE) + 1, |
8e57e1d1 | 1610 | en->rfa.vbn); |
a6163c10 TG |
1611 | bfd_putl16 |
1612 | ((idx->abfd->proxy_origin % VMS_BLOCK_SIZE) + DATA__DATA, | |
8e57e1d1 | 1613 | en->rfa.offset); |
a6163c10 TG |
1614 | en->keylen = idx->namlen; |
1615 | memcpy (en->keyname, idx->name, idx->namlen); | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | blk[j].lastlen = idxlen; | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | if (topvbn != NULL) | |
1624 | *topvbn = blk[level - 1].vbn; | |
1625 | ||
1626 | if (abfd == NULL) | |
1627 | return TRUE; | |
1628 | ||
1629 | /* Flush. */ | |
1630 | for (j = 0; j < level; j++) | |
1631 | { | |
1632 | if (j > 0) | |
1633 | { | |
1634 | /* Update parent block: write the new entry. */ | |
8e57e1d1 TG |
1635 | struct vms_idx *en; |
1636 | struct vms_idx *par; | |
a6163c10 | 1637 | |
8e57e1d1 TG |
1638 | en = (struct vms_idx *)(rblk[j - 1]->keys + blk[j - 1].len); |
1639 | par = (struct vms_idx *)(rblk[j]->keys + blk[j].len); | |
a6163c10 | 1640 | memcpy (par, en, blk[j - 1].lastlen); |
8e57e1d1 TG |
1641 | bfd_putl32 (blk[j - 1].vbn, par->rfa.vbn); |
1642 | bfd_putl16 (RFADEF__C_INDEX, par->rfa.offset); | |
a6163c10 TG |
1643 | } |
1644 | ||
1645 | /* Write this block on the disk. */ | |
1646 | bfd_putl16 (blk[j].len + blk[j].lastlen, rblk[j]->used); | |
1647 | if (bfd_seek (abfd, (blk[j].vbn - 1) * VMS_BLOCK_SIZE, | |
1648 | SEEK_SET) != 0) | |
1649 | return FALSE; | |
1650 | if (bfd_bwrite (rblk[j], sizeof (struct vms_indexdef), abfd) | |
1651 | != sizeof (struct vms_indexdef)) | |
1652 | return FALSE; | |
1653 | ||
1654 | free (rblk[j]); | |
1655 | } | |
1656 | ||
1657 | return TRUE; | |
1658 | } | |
1659 | ||
1660 | /* Append data to the data block DATA. Force write if PAD is true. */ | |
1661 | ||
1662 | static bfd_boolean | |
1663 | vms_write_data_block (bfd *arch, struct vms_datadef *data, file_ptr *off, | |
1664 | const unsigned char *buf, unsigned int len, int pad) | |
1665 | { | |
1666 | while (len > 0 || pad) | |
1667 | { | |
1668 | unsigned int doff = *off & (VMS_BLOCK_SIZE - 1); | |
1669 | unsigned int remlen = (DATA__LENGTH - DATA__DATA) - doff; | |
1670 | unsigned int l; | |
1671 | ||
1672 | l = (len > remlen) ? remlen : len; | |
1673 | memcpy (data->data + doff, buf, l); | |
1674 | buf += l; | |
1675 | len -= l; | |
1676 | doff += l; | |
1677 | *off += l; | |
1678 | ||
1679 | if (doff == (DATA__LENGTH - DATA__DATA) || (len == 0 && pad)) | |
1680 | { | |
1681 | data->recs = 0; | |
1682 | data->fill_1 = 0; | |
1683 | bfd_putl32 ((*off / VMS_BLOCK_SIZE) + 2, data->link); | |
1684 | ||
1685 | if (bfd_bwrite (data, sizeof (*data), arch) != sizeof (*data)) | |
1686 | return FALSE; | |
1687 | ||
1688 | *off += DATA__LENGTH - doff; | |
1689 | ||
1690 | if (len == 0) | |
1691 | break; | |
1692 | } | |
1693 | } | |
1694 | return TRUE; | |
1695 | } | |
1696 | ||
1697 | /* Build the symbols index. */ | |
1698 | ||
1699 | static bfd_boolean | |
1700 | _bfd_vms_lib_build_map (unsigned int nbr_modules, | |
1701 | struct vms_index *modules, | |
1702 | unsigned int *res_cnt, | |
1703 | struct vms_index **res) | |
1704 | { | |
1705 | unsigned int i; | |
1706 | asymbol **syms = NULL; | |
1707 | long syms_max = 0; | |
1708 | struct vms_index *map = NULL; | |
1709 | unsigned int map_max = 1024; /* Fine initial default. */ | |
1710 | unsigned int map_count = 0; | |
1711 | ||
1712 | map = (struct vms_index *) bfd_malloc (map_max * sizeof (struct vms_index)); | |
1713 | if (map == NULL) | |
1714 | goto error_return; | |
1715 | ||
1716 | /* Gather symbols. */ | |
1717 | for (i = 0; i < nbr_modules; i++) | |
1718 | { | |
1719 | long storage; | |
1720 | long symcount; | |
1721 | long src_count; | |
1722 | bfd *current = modules[i].abfd; | |
1723 | ||
1724 | if ((bfd_get_file_flags (current) & HAS_SYMS) == 0) | |
1725 | continue; | |
1726 | ||
1727 | storage = bfd_get_symtab_upper_bound (current); | |
1728 | if (storage < 0) | |
1729 | goto error_return; | |
1730 | ||
1731 | if (storage != 0) | |
1732 | { | |
1733 | if (storage > syms_max) | |
1734 | { | |
1735 | if (syms_max > 0) | |
1736 | free (syms); | |
1737 | syms_max = storage; | |
1738 | syms = (asymbol **) bfd_malloc (syms_max); | |
1739 | if (syms == NULL) | |
1740 | goto error_return; | |
1741 | } | |
1742 | symcount = bfd_canonicalize_symtab (current, syms); | |
1743 | if (symcount < 0) | |
1744 | goto error_return; | |
1745 | ||
1746 | /* Now map over all the symbols, picking out the ones we | |
1747 | want. */ | |
1748 | for (src_count = 0; src_count < symcount; src_count++) | |
1749 | { | |
1750 | flagword flags = (syms[src_count])->flags; | |
1751 | asection *sec = syms[src_count]->section; | |
1752 | ||
1753 | if ((flags & BSF_GLOBAL | |
1754 | || flags & BSF_WEAK | |
1755 | || flags & BSF_INDIRECT | |
1756 | || bfd_is_com_section (sec)) | |
1757 | && ! bfd_is_und_section (sec)) | |
1758 | { | |
1759 | struct vms_index *new_map; | |
1760 | ||
1761 | /* This symbol will go into the archive header. */ | |
1762 | if (map_count == map_max) | |
1763 | { | |
1764 | map_max *= 2; | |
1765 | new_map = (struct vms_index *) | |
1766 | bfd_realloc (map, map_max * sizeof (struct vms_index)); | |
1767 | if (new_map == NULL) | |
1768 | goto error_return; | |
1769 | map = new_map; | |
1770 | } | |
1771 | ||
1772 | map[map_count].abfd = current; | |
1773 | /* FIXME: check length. */ | |
1774 | map[map_count].namlen = strlen (syms[src_count]->name); | |
1775 | map[map_count].name = syms[src_count]->name; | |
1776 | map_count++; | |
1777 | modules[i].ref++; | |
1778 | } | |
1779 | } | |
1780 | } | |
1781 | } | |
1782 | ||
1783 | *res_cnt = map_count; | |
1784 | *res = map; | |
1785 | return TRUE; | |
1786 | ||
1787 | error_return: | |
1788 | if (syms_max > 0) | |
1789 | free (syms); | |
1790 | if (map != NULL) | |
1791 | free (map); | |
1792 | return FALSE; | |
1793 | } | |
1794 | ||
1795 | /* Do the hard work: write an archive on the disk. */ | |
1796 | ||
1797 | bfd_boolean | |
1798 | _bfd_vms_lib_write_archive_contents (bfd *arch) | |
1799 | { | |
1800 | bfd *current; | |
1801 | unsigned int nbr_modules; | |
1802 | struct vms_index *modules; | |
1803 | unsigned int nbr_symbols; | |
1804 | struct vms_index *symbols; | |
1805 | struct lib_tdata *tdata = bfd_libdata (arch); | |
1806 | unsigned int i; | |
1807 | file_ptr off; | |
1808 | unsigned int nbr_mod_iblk; | |
1809 | unsigned int nbr_sym_iblk; | |
1810 | unsigned int vbn; | |
1811 | unsigned int mod_idx_vbn; | |
1812 | unsigned int sym_idx_vbn; | |
1813 | ||
1814 | /* Count the number of modules (and do a first sanity check). */ | |
1815 | nbr_modules = 0; | |
1816 | for (current = arch->archive_head; | |
1817 | current != NULL; | |
1818 | current = current->archive_next) | |
1819 | { | |
1820 | /* This check is checking the bfds for the objects we're reading | |
1821 | from (which are usually either an object file or archive on | |
1822 | disk), not the archive entries we're writing to. We don't | |
1823 | actually create bfds for the archive members, we just copy | |
1824 | them byte-wise when we write out the archive. */ | |
1825 | if (bfd_write_p (current) || !bfd_check_format (current, bfd_object)) | |
1826 | { | |
1827 | bfd_set_error (bfd_error_invalid_operation); | |
1828 | goto input_err; | |
1829 | } | |
1830 | ||
1831 | nbr_modules++; | |
1832 | } | |
1833 | ||
1834 | /* Build the modules list. */ | |
1835 | BFD_ASSERT (tdata->modules == NULL); | |
1836 | modules = bfd_alloc (arch, nbr_modules * sizeof (struct vms_index)); | |
1837 | if (modules == NULL) | |
1838 | return FALSE; | |
1839 | ||
1840 | for (current = arch->archive_head, i = 0; | |
1841 | current != NULL; | |
1842 | current = current->archive_next, i++) | |
1843 | { | |
1844 | int nl; | |
1845 | ||
1846 | modules[i].abfd = current; | |
1847 | modules[i].name = vms_get_module_name (current->filename, FALSE); | |
1848 | modules[i].ref = 1; | |
1849 | ||
1850 | /* FIXME: silently truncate long names ? */ | |
1851 | nl = strlen (modules[i].name); | |
1852 | modules[i].namlen = (nl > MAX_KEYLEN ? MAX_KEYLEN : nl); | |
1853 | } | |
1854 | ||
1855 | /* Create the module index. */ | |
1856 | vbn = 0; | |
1857 | if (!vms_write_index (NULL, modules, nbr_modules, &vbn, NULL)) | |
1858 | return FALSE; | |
1859 | nbr_mod_iblk = vbn; | |
1860 | ||
1861 | /* Create symbol index. */ | |
1862 | if (!_bfd_vms_lib_build_map (nbr_modules, modules, &nbr_symbols, &symbols)) | |
1863 | return FALSE; | |
1864 | ||
1865 | vbn = 0; | |
1866 | if (!vms_write_index (NULL, symbols, nbr_symbols, &vbn, NULL)) | |
1867 | return FALSE; | |
1868 | nbr_sym_iblk = vbn; | |
1869 | ||
1870 | /* Write modules and remember their position. */ | |
1871 | off = (1 + nbr_mod_iblk + nbr_sym_iblk) * VMS_BLOCK_SIZE; | |
1872 | ||
1873 | if (bfd_seek (arch, off, SEEK_SET) != 0) | |
1874 | return FALSE; | |
1875 | ||
1876 | for (i = 0; i < nbr_modules; i++) | |
1877 | { | |
1878 | struct vms_datadef data; | |
1879 | unsigned char blk[VMS_BLOCK_SIZE]; | |
1880 | struct vms_mhd *mhd; | |
1881 | unsigned int sz; | |
1882 | ||
1883 | current = modules[i].abfd; | |
1884 | current->proxy_origin = off; | |
1885 | ||
1886 | bfd_putl16 (sizeof (struct vms_mhd), blk); | |
1887 | mhd = (struct vms_mhd *)(blk + 2); | |
1888 | memset (mhd, 0, sizeof (struct vms_mhd)); | |
1889 | mhd->lbrflag = 0; | |
1890 | mhd->id = MHD__C_MHDID; | |
1891 | mhd->objidlng = 4; | |
1892 | memcpy (mhd->objid, "V1.0", 4); | |
1893 | bfd_putl32 (modules[i].ref, mhd->refcnt); | |
1894 | /* FIXME: datim. */ | |
1895 | ||
1896 | sz = (2 + sizeof (struct vms_mhd) + 1) & ~1; | |
1897 | if (vms_write_data_block (arch, &data, &off, blk, sz, 0) < 0) | |
1898 | goto input_err; | |
1899 | ||
1900 | if (bfd_seek (current, 0, SEEK_SET) != 0) | |
1901 | goto input_err; | |
1902 | ||
1903 | while (1) | |
1904 | { | |
1905 | sz = bfd_bread (blk, sizeof (blk), current); | |
1906 | if (sz == 0) | |
1907 | break; | |
1908 | if (vms_write_data_block (arch, &data, &off, blk, sz, 0) < 0) | |
1909 | goto input_err; | |
1910 | } | |
1911 | if (vms_write_data_block (arch, &data, &off, | |
1912 | eotdesc, sizeof (eotdesc), 1) < 0) | |
1913 | goto input_err; | |
1914 | } | |
1915 | ||
1916 | /* Write the indexes. */ | |
1917 | vbn = 2; | |
1918 | if (vms_write_index (arch, modules, nbr_modules, &vbn, &mod_idx_vbn) != TRUE) | |
1919 | return FALSE; | |
1920 | if (vms_write_index (arch, symbols, nbr_symbols, &vbn, &sym_idx_vbn) != TRUE) | |
1921 | return FALSE; | |
1922 | ||
1923 | /* Write libary header. */ | |
1924 | { | |
1925 | unsigned char blk[VMS_BLOCK_SIZE]; | |
1926 | struct vms_lhd *lhd = (struct vms_lhd *)blk; | |
1927 | struct vms_idd *idd = (struct vms_idd *)(blk + sizeof (*lhd)); | |
0e9b2e9a | 1928 | unsigned int idd_flags; |
a6163c10 TG |
1929 | |
1930 | memset (blk, 0, sizeof (blk)); | |
1931 | ||
1932 | lhd->type = LBR__C_TYP_EOBJ; | |
1933 | lhd->nindex = 2; | |
1934 | bfd_putl32 (LHD_SANEID3, lhd->sanity); | |
1935 | bfd_putl16 (3, lhd->majorid); | |
1936 | bfd_putl16 (0, lhd->minorid); | |
1937 | snprintf ((char *)lhd->lbrver + 1, sizeof (lhd->lbrver) - 1, | |
1938 | "GNU ar %u.%u.%u", | |
1939 | (unsigned)(BFD_VERSION / 100000000UL), | |
1940 | (unsigned)(BFD_VERSION / 1000000UL) % 100, | |
1941 | (unsigned)(BFD_VERSION / 10000UL) % 100); | |
1942 | lhd->lbrver[sizeof (lhd->lbrver) - 1] = 0; | |
1943 | lhd->lbrver[0] = strlen ((char *)lhd->lbrver + 1); | |
1944 | ||
1945 | /* FIXME. */ | |
1946 | bfd_putl64 (0, lhd->credat); | |
1947 | bfd_putl64 (0, lhd->updtim); | |
1948 | ||
1949 | lhd->mhdusz = sizeof (struct vms_mhd) - MHD__C_USRDAT; | |
1950 | ||
1951 | bfd_putl32 (nbr_modules + nbr_symbols, lhd->idxcnt); | |
1952 | bfd_putl32 (nbr_modules, lhd->modcnt); | |
1953 | bfd_putl32 (nbr_modules, lhd->modhdrs); | |
1954 | ||
1955 | bfd_putl32 (vbn - 1, lhd->hipreal); | |
1956 | bfd_putl32 (vbn - 1, lhd->hiprusd); | |
1957 | ||
1958 | /* First index (modules name). */ | |
0e9b2e9a TG |
1959 | idd_flags = IDD__FLAGS_ASCII | IDD__FLAGS_VARLENIDX |
1960 | | IDD__FLAGS_NOCASECMP | IDD__FLAGS_NOCASENTR; | |
1961 | bfd_putl16 (idd_flags, idd->flags); | |
a6163c10 TG |
1962 | bfd_putl16 (MAX_KEYLEN, idd->keylen); |
1963 | bfd_putl16 (mod_idx_vbn, idd->vbn); | |
1964 | idd++; | |
1965 | ||
1966 | /* Second index (symbols name). */ | |
0e9b2e9a | 1967 | bfd_putl16 (idd_flags, idd->flags); |
a6163c10 TG |
1968 | bfd_putl16 (MAX_KEYLEN, idd->keylen); |
1969 | bfd_putl16 (sym_idx_vbn, idd->vbn); | |
1970 | idd++; | |
1971 | ||
1972 | if (bfd_seek (arch, 0, SEEK_SET) != 0) | |
1973 | return FALSE; | |
1974 | if (bfd_bwrite (blk, sizeof (blk), arch) != sizeof (blk)) | |
1975 | return FALSE; | |
1976 | } | |
1977 | ||
1978 | return TRUE; | |
1979 | ||
1980 | input_err: | |
1981 | bfd_set_error (bfd_error_on_input, current, bfd_get_error ()); | |
1982 | return FALSE; | |
1983 | } | |
1984 | ||
1985 | /* Add a target for text library. This costs almost nothing and is useful to | |
1986 | read VMS library on the host. */ | |
1987 | ||
1988 | const bfd_target vms_lib_txt_vec = | |
1989 | { | |
1990 | "vms-libtxt", /* Name. */ | |
1991 | bfd_target_unknown_flavour, | |
1992 | BFD_ENDIAN_UNKNOWN, /* byteorder */ | |
1993 | BFD_ENDIAN_UNKNOWN, /* header_byteorder */ | |
1994 | 0, /* Object flags. */ | |
1995 | 0, /* Sect flags. */ | |
1996 | 0, /* symbol_leading_char. */ | |
1997 | ' ', /* ar_pad_char. */ | |
1998 | 15, /* ar_max_namelen. */ | |
1999 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2000 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2001 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, | |
2002 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2003 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2004 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, | |
2005 | ||
2006 | {_bfd_dummy_target, _bfd_dummy_target, /* bfd_check_format. */ | |
2007 | _bfd_vms_lib_txt_archive_p, _bfd_dummy_target}, | |
2008 | {bfd_false, bfd_false, bfd_false, bfd_false}, /* bfd_set_format. */ | |
2009 | {bfd_false, bfd_false, bfd_false, bfd_false}, /* bfd_write_contents. */ | |
2010 | ||
2011 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), | |
2012 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
2013 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2014 | BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib), | |
2015 | BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), | |
2016 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
2017 | BFD_JUMP_TABLE_WRITE (_bfd_nowrite), | |
2018 | BFD_JUMP_TABLE_LINK (_bfd_nolink), | |
2019 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2020 | ||
2021 | NULL, | |
2022 | ||
2023 | (PTR) 0 | |
2024 | }; |