Commit | Line | Data |
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252b5132 RH |
1 | /* vms-misc.c -- Miscellaneous functions for VAX (openVMS/VAX) and |
2 | EVAX (openVMS/Alpha) files. | |
3f3c5c34 | 3 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
7898deda | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | |
6 | Written by Klaus K"ampf (kkaempf@rmi.de) | |
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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
252b5132 RH |
22 | #if __STDC__ |
23 | #include <stdarg.h> | |
24 | #endif | |
25 | ||
26 | #include "bfd.h" | |
27 | #include "sysdep.h" | |
28 | #include "bfdlink.h" | |
29 | #include "libbfd.h" | |
30 | ||
31 | #include "vms.h" | |
32 | ||
524f76c9 AJ |
33 | static vms_section *add_new_contents PARAMS ((bfd *, sec_ptr)); |
34 | static int hash_string PARAMS ((const char *)); | |
35 | static asymbol *new_symbol PARAMS ((bfd *, char *)); | |
dc810e39 | 36 | |
252b5132 RH |
37 | /*-----------------------------------------------------------------------------*/ |
38 | #if VMS_DEBUG | |
39 | /* debug functions */ | |
40 | ||
41 | /* debug function for all vms extensions | |
42 | evaluates environment variable VMS_DEBUG for a | |
43 | numerical value on the first call | |
44 | all error levels below this value are printed | |
558e161f | 45 | |
252b5132 RH |
46 | levels: |
47 | 1 toplevel bfd calls (functions from the bfd vector) | |
48 | 2 functions called by bfd calls | |
49 | ... | |
50 | 9 almost everything | |
51 | ||
52 | level is also identation level. Indentation is performed | |
53 | if level > 0 | |
54 | */ | |
55 | ||
56 | #if __STDC__ | |
57 | void | |
58 | _bfd_vms_debug (int level, char *format, ...) | |
59 | { | |
60 | static int min_level = -1; | |
61 | static FILE *output = NULL; | |
62 | char *eptr; | |
63 | va_list args; | |
64 | int abslvl = (level > 0)?level:-level; | |
65 | ||
66 | if (min_level == -1) | |
67 | { | |
68 | if ((eptr = getenv("VMS_DEBUG")) != NULL) | |
69 | { | |
70 | min_level = atoi(eptr); | |
71 | output = stderr; | |
72 | } | |
73 | else | |
74 | min_level = 0; | |
75 | } | |
76 | if (output == NULL) | |
77 | return; | |
78 | if (abslvl > min_level) | |
79 | return; | |
80 | ||
558e161f KH |
81 | while (--level>0) |
82 | fprintf (output, " "); | |
252b5132 | 83 | va_start(args, format); |
558e161f | 84 | vfprintf (output, format, args); |
252b5132 RH |
85 | fflush(output); |
86 | va_end(args); | |
87 | ||
88 | return; | |
89 | } | |
90 | ||
91 | #else /* not __STDC__ */ | |
92 | ||
93 | void | |
94 | _bfd_vms_debug (level, format, a1, a2, a3, a4, a5, a6) | |
95 | int level; | |
96 | char *format; | |
97 | long a1; long a2; long a3; | |
98 | long a4; long a5; long a6; | |
99 | { | |
100 | static int min_level = -1; | |
101 | static FILE *output = NULL; | |
102 | char *eptr; | |
103 | ||
104 | if (min_level == -1) | |
105 | { | |
106 | if ((eptr = getenv("VMS_DEBUG")) != NULL) | |
107 | { | |
108 | min_level = atoi(eptr); | |
109 | output = stderr; | |
110 | } | |
111 | else | |
112 | min_level = 0; | |
113 | } | |
114 | if (output == NULL) | |
115 | return; | |
116 | if (level > min_level) | |
117 | return; | |
118 | ||
558e161f KH |
119 | while (--level>0) |
120 | fprintf (output, " "); | |
121 | fprintf (output, format, a1, a2, a3, a4, a5, a6); | |
252b5132 RH |
122 | fflush(output); |
123 | ||
124 | return; | |
125 | } | |
126 | #endif /* __STDC__ */ | |
127 | ||
252b5132 RH |
128 | /* a debug function |
129 | hex dump 'size' bytes starting at 'ptr' */ | |
130 | ||
131 | void | |
132 | _bfd_hexdump (level, ptr, size, offset) | |
133 | int level; | |
134 | unsigned char *ptr; | |
135 | int size; | |
136 | int offset; | |
137 | { | |
138 | unsigned char *lptr = ptr; | |
139 | int count = 0; | |
140 | long start = offset; | |
141 | ||
142 | while (size-- > 0) | |
143 | { | |
144 | if ((count%16) == 0) | |
145 | vms_debug (level, "%08lx:", start); | |
146 | vms_debug (-level, " %02x", *ptr++); | |
147 | count++; | |
148 | start++; | |
149 | if (size == 0) | |
150 | { | |
151 | while ((count%16) != 0) | |
152 | { | |
153 | vms_debug (-level, " "); | |
154 | count++; | |
155 | } | |
156 | } | |
157 | if ((count%16) == 0) | |
158 | { | |
159 | vms_debug (-level, " "); | |
160 | while (lptr < ptr) | |
161 | { | |
162 | vms_debug (-level, "%c", (*lptr < 32)?'.':*lptr); | |
163 | lptr++; | |
164 | } | |
165 | vms_debug (-level, "\n"); | |
166 | } | |
167 | } | |
168 | if ((count%16) != 0) | |
169 | vms_debug (-level, "\n"); | |
170 | ||
171 | return; | |
172 | } | |
173 | #endif | |
252b5132 RH |
174 | \f |
175 | /* hash functions | |
176 | ||
177 | These are needed when reading an object file. */ | |
178 | ||
179 | /* allocate new vms_hash_entry | |
180 | keep the symbol name and a pointer to the bfd symbol in the table */ | |
181 | ||
182 | struct bfd_hash_entry * | |
183 | _bfd_vms_hash_newfunc (entry, table, string) | |
184 | struct bfd_hash_entry *entry; | |
185 | struct bfd_hash_table *table; | |
186 | const char *string; | |
187 | { | |
188 | vms_symbol_entry *ret; | |
189 | ||
190 | #if VMS_DEBUG | |
191 | vms_debug (5, "_bfd_vms_hash_newfunc(%p, %p, %s)\n", entry, table, string); | |
192 | #endif | |
193 | ||
194 | if (entry == (struct bfd_hash_entry *)NULL) | |
195 | { | |
196 | ret = (vms_symbol_entry *) | |
197 | bfd_hash_allocate (table, sizeof (vms_symbol_entry)); | |
198 | if (ret == (vms_symbol_entry *) NULL) | |
199 | { | |
200 | bfd_set_error (bfd_error_no_memory); | |
201 | return (struct bfd_hash_entry *)NULL; | |
202 | } | |
015985c9 | 203 | entry = (struct bfd_hash_entry *) ret; |
252b5132 RH |
204 | } |
205 | ||
206 | /* Call the allocation method of the base class. */ | |
207 | ||
015985c9 | 208 | ret = (vms_symbol_entry *) bfd_hash_newfunc (entry, table, string); |
252b5132 RH |
209 | #if VMS_DEBUG |
210 | vms_debug (6, "_bfd_vms_hash_newfunc ret %p\n", ret); | |
211 | #endif | |
212 | ||
213 | ret->symbol = (asymbol *)NULL; | |
214 | ||
215 | return (struct bfd_hash_entry *)ret; | |
216 | } | |
252b5132 RH |
217 | \f |
218 | /* object file input functions */ | |
219 | ||
220 | /* Return type and length from record header (buf) on Alpha. */ | |
221 | ||
222 | void | |
223 | _bfd_vms_get_header_values (abfd, buf, type, length) | |
5f771d47 | 224 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
225 | unsigned char *buf; |
226 | int *type; | |
227 | int *length; | |
228 | { | |
229 | if (type != 0) | |
230 | *type = bfd_getl16 (buf); | |
231 | buf += 2; | |
232 | if (length != 0) | |
233 | *length = bfd_getl16 (buf); | |
234 | ||
235 | #if VMS_DEBUG | |
236 | vms_debug (10, "_bfd_vms_get_header_values type %x, length %x\n", (type?*type:0), (length?*length:0)); | |
237 | #endif | |
238 | ||
252b5132 RH |
239 | return; |
240 | } | |
241 | ||
252b5132 RH |
242 | /* Get next record from object file to vms_buf |
243 | set PRIV(buf_size) and return it | |
558e161f | 244 | |
252b5132 | 245 | this is a little tricky since it should be portable. |
558e161f | 246 | |
252b5132 RH |
247 | the openVMS object file has 'variable length' which means that |
248 | read() returns data in chunks of (hopefully) correct and expected | |
249 | size. The linker (and other tools on vms) depend on that. Unix doesn't | |
250 | know about 'formatted' files, so reading and writing such an object | |
251 | file in a unix environment is not trivial. | |
558e161f | 252 | |
252b5132 RH |
253 | With the tool 'file' (available on all vms ftp sites), one |
254 | can view and change the attributes of a file. Changing from | |
255 | 'variable length' to 'fixed length, 512 bytes' reveals the | |
256 | record length at the first 2 bytes of every record. The same | |
257 | happens during the transfer of object files from vms to unix, | |
258 | at least with ucx, dec's implementation of tcp/ip. | |
558e161f | 259 | |
252b5132 | 260 | The vms format repeats the length at bytes 2 & 3 of every record. |
558e161f | 261 | |
252b5132 RH |
262 | On the first call (file_format == FF_UNKNOWN) we check if |
263 | the first and the third byte pair (!) of the record match. | |
264 | If they do it's an object file in an unix environment or with | |
265 | wrong attributes (FF_FOREIGN), else we should be in a vms | |
266 | environment where read() returns the record size (FF_NATIVE). | |
558e161f | 267 | |
252b5132 RH |
268 | reading is always done in 2 steps. |
269 | first just the record header is read and the length extracted | |
270 | by get_header_values | |
271 | then the read buffer is adjusted and the remaining bytes are | |
272 | read in. | |
558e161f | 273 | |
252b5132 RH |
274 | all file i/o is always done on even file positions */ |
275 | ||
276 | int | |
277 | _bfd_vms_get_record (abfd) | |
278 | bfd *abfd; | |
279 | { | |
280 | int test_len, test_start, remaining; | |
281 | unsigned char *vms_buf; | |
282 | ||
283 | #if VMS_DEBUG | |
284 | vms_debug (8, "_bfd_vms_get_record\n"); | |
285 | #endif | |
286 | ||
287 | /* minimum is 6 bytes on Alpha | |
288 | (2 bytes length, 2 bytes record id, 2 bytes length repeated) | |
289 | ||
290 | on VAX there's no length information in the record | |
291 | so start with OBJ_S_C_MAXRECSIZ */ | |
292 | ||
47eee8a9 | 293 | if (PRIV (buf_size) == 0) |
252b5132 | 294 | { |
47eee8a9 | 295 | if (PRIV (is_vax)) |
252b5132 | 296 | { |
47eee8a9 KH |
297 | PRIV (vms_buf) = (unsigned char *) malloc (OBJ_S_C_MAXRECSIZ); |
298 | PRIV (buf_size) = OBJ_S_C_MAXRECSIZ; | |
299 | PRIV (file_format) = FF_VAX; | |
252b5132 RH |
300 | } |
301 | else | |
47eee8a9 | 302 | PRIV (vms_buf) = (unsigned char *) malloc (6); |
252b5132 RH |
303 | } |
304 | ||
47eee8a9 | 305 | vms_buf = PRIV (vms_buf); |
252b5132 RH |
306 | |
307 | if (vms_buf == 0) | |
308 | { | |
309 | bfd_set_error (bfd_error_no_memory); | |
310 | return -1; | |
311 | } | |
312 | ||
47eee8a9 | 313 | switch (PRIV (file_format)) |
252b5132 | 314 | { |
02b89dce NC |
315 | case FF_UNKNOWN: |
316 | case FF_FOREIGN: | |
317 | test_len = 6; /* probe 6 bytes */ | |
318 | test_start = 2; /* where the record starts */ | |
252b5132 | 319 | break; |
558e161f | 320 | |
02b89dce NC |
321 | case FF_NATIVE: |
322 | test_len = 4; | |
323 | test_start = 0; | |
252b5132 | 324 | break; |
558e161f | 325 | |
02b89dce NC |
326 | default: |
327 | case FF_VAX: | |
328 | test_len = 0; | |
329 | test_start = 0; | |
252b5132 | 330 | break; |
02b89dce | 331 | } |
252b5132 RH |
332 | |
333 | /* skip odd alignment byte */ | |
334 | ||
335 | if (bfd_tell (abfd) & 1) | |
336 | { | |
dc810e39 | 337 | if (bfd_bread (PRIV (vms_buf), (bfd_size_type) 1, abfd) != 1) |
252b5132 RH |
338 | { |
339 | bfd_set_error (bfd_error_file_truncated); | |
340 | return 0; | |
341 | } | |
342 | } | |
343 | ||
344 | /* read the record header on Alpha. */ | |
345 | ||
346 | if ((test_len != 0) | |
dc810e39 | 347 | && (bfd_bread (PRIV (vms_buf), (bfd_size_type) test_len, abfd) |
5f771d47 | 348 | != (bfd_size_type) test_len)) |
252b5132 RH |
349 | { |
350 | bfd_set_error (bfd_error_file_truncated); | |
351 | return 0; | |
352 | } | |
353 | ||
354 | /* check file format on first call */ | |
355 | ||
47eee8a9 | 356 | if (PRIV (file_format) == FF_UNKNOWN) |
252b5132 RH |
357 | { /* record length repeats ? */ |
358 | if ( (vms_buf[0] == vms_buf[4]) | |
359 | && (vms_buf[1] == vms_buf[5])) | |
360 | { | |
47eee8a9 | 361 | PRIV (file_format) = FF_FOREIGN; /* Y: foreign environment */ |
252b5132 RH |
362 | test_start = 2; |
363 | } | |
364 | else | |
365 | { | |
47eee8a9 | 366 | PRIV (file_format) = FF_NATIVE; /* N: native environment */ |
252b5132 RH |
367 | test_start = 0; |
368 | } | |
369 | } | |
370 | ||
47eee8a9 | 371 | if (PRIV (is_vax)) |
252b5132 | 372 | { |
dc810e39 AM |
373 | PRIV (rec_length) = bfd_bread (vms_buf, (bfd_size_type) PRIV (buf_size), |
374 | abfd); | |
47eee8a9 | 375 | if (PRIV (rec_length) <= 0) |
252b5132 RH |
376 | { |
377 | bfd_set_error (bfd_error_file_truncated); | |
378 | return 0; | |
379 | } | |
47eee8a9 | 380 | PRIV (vms_rec) = vms_buf; |
252b5132 RH |
381 | } |
382 | else /* Alpha */ | |
383 | { | |
384 | /* extract vms record length */ | |
385 | ||
386 | _bfd_vms_get_header_values (abfd, vms_buf+test_start, NULL, | |
47eee8a9 | 387 | &PRIV (rec_length)); |
252b5132 | 388 | |
47eee8a9 | 389 | if (PRIV (rec_length) <= 0) |
252b5132 RH |
390 | { |
391 | bfd_set_error (bfd_error_file_truncated); | |
392 | return 0; | |
393 | } | |
394 | ||
395 | /* that's what the linker manual says */ | |
396 | ||
47eee8a9 | 397 | if (PRIV (rec_length) > EOBJ_S_C_MAXRECSIZ) |
252b5132 RH |
398 | { |
399 | bfd_set_error (bfd_error_file_truncated); | |
400 | return 0; | |
401 | } | |
402 | ||
403 | /* adjust the buffer */ | |
404 | ||
47eee8a9 | 405 | if (PRIV (rec_length) > PRIV (buf_size)) |
252b5132 | 406 | { |
dc810e39 AM |
407 | PRIV (vms_buf) = ((unsigned char *) |
408 | realloc (vms_buf, (size_t) PRIV (rec_length))); | |
47eee8a9 | 409 | vms_buf = PRIV (vms_buf); |
252b5132 RH |
410 | if (vms_buf == 0) |
411 | { | |
412 | bfd_set_error (bfd_error_no_memory); | |
413 | return -1; | |
414 | } | |
47eee8a9 | 415 | PRIV (buf_size) = PRIV (rec_length); |
252b5132 RH |
416 | } |
417 | ||
418 | /* read the remaining record */ | |
419 | ||
47eee8a9 | 420 | remaining = PRIV (rec_length) - test_len + test_start; |
252b5132 RH |
421 | |
422 | #if VMS_DEBUG | |
dc810e39 | 423 | vms_debug (10, "bfd_bread remaining %d\n", remaining); |
252b5132 | 424 | #endif |
dc810e39 | 425 | if (bfd_bread (vms_buf + test_len, (bfd_size_type) remaining, abfd) != |
5f771d47 | 426 | (bfd_size_type) remaining) |
252b5132 RH |
427 | { |
428 | bfd_set_error (bfd_error_file_truncated); | |
429 | return 0; | |
430 | } | |
47eee8a9 | 431 | PRIV (vms_rec) = vms_buf + test_start; |
252b5132 RH |
432 | } |
433 | ||
434 | #if VMS_DEBUG | |
dc810e39 | 435 | vms_debug (11, "bfd_bread rec_length %d\n", PRIV (rec_length)); |
252b5132 RH |
436 | #endif |
437 | ||
47eee8a9 | 438 | return PRIV (rec_length); |
252b5132 RH |
439 | } |
440 | ||
252b5132 RH |
441 | /* get next vms record from file |
442 | update vms_rec and rec_length to new (remaining) values */ | |
443 | ||
444 | int | |
445 | _bfd_vms_next_record (abfd) | |
446 | bfd *abfd; | |
447 | { | |
448 | #if VMS_DEBUG | |
449 | vms_debug (8, "_bfd_vms_next_record (len %d, size %d)\n", | |
47eee8a9 | 450 | PRIV (rec_length), PRIV (rec_size)); |
252b5132 RH |
451 | #endif |
452 | ||
47eee8a9 | 453 | if (PRIV (rec_length) > 0) |
252b5132 | 454 | { |
47eee8a9 | 455 | PRIV (vms_rec) += PRIV (rec_size); |
252b5132 RH |
456 | } |
457 | else | |
458 | { | |
459 | if (_bfd_vms_get_record (abfd) <= 0) | |
460 | return -1; | |
461 | } | |
462 | ||
47eee8a9 KH |
463 | if (!PRIV (vms_rec) || !PRIV (vms_buf) |
464 | || PRIV (vms_rec) >= (PRIV (vms_buf) + PRIV (buf_size))) | |
63e39178 L |
465 | return -1; |
466 | ||
47eee8a9 | 467 | if (PRIV (is_vax)) |
252b5132 | 468 | { |
47eee8a9 KH |
469 | PRIV (rec_type) = *(PRIV (vms_rec)); |
470 | PRIV (rec_size) = PRIV (rec_length); | |
252b5132 RH |
471 | } |
472 | else | |
473 | { | |
47eee8a9 KH |
474 | _bfd_vms_get_header_values (abfd, PRIV (vms_rec), &PRIV (rec_type), |
475 | &PRIV (rec_size)); | |
252b5132 | 476 | } |
47eee8a9 | 477 | PRIV (rec_length) -= PRIV (rec_size); |
252b5132 RH |
478 | |
479 | #if VMS_DEBUG | |
480 | vms_debug (8, "_bfd_vms_next_record: rec %p, size %d, length %d, type %d\n", | |
47eee8a9 KH |
481 | PRIV (vms_rec), PRIV (rec_size), PRIV (rec_length), |
482 | PRIV (rec_type)); | |
252b5132 RH |
483 | #endif |
484 | ||
47eee8a9 | 485 | return PRIV (rec_type); |
252b5132 | 486 | } |
252b5132 RH |
487 | \f |
488 | /* Copy sized string (string with fixed length) to new allocated area | |
489 | size is string length (size of record) */ | |
490 | ||
491 | char * | |
492 | _bfd_vms_save_sized_string (str, size) | |
493 | unsigned char *str; | |
494 | int size; | |
495 | { | |
dc810e39 | 496 | char *newstr = bfd_malloc ((bfd_size_type) size + 1); |
252b5132 RH |
497 | |
498 | if (newstr == NULL) | |
499 | return 0; | |
dc810e39 | 500 | strncpy (newstr, (char *) str, (size_t) size); |
252b5132 RH |
501 | newstr[size] = 0; |
502 | ||
503 | return newstr; | |
504 | } | |
505 | ||
506 | /* Copy counted string (string with length at first byte) to new allocated area | |
507 | ptr points to length byte on entry */ | |
508 | ||
509 | char * | |
510 | _bfd_vms_save_counted_string (ptr) | |
511 | unsigned char *ptr; | |
512 | { | |
513 | int len = *ptr++; | |
514 | ||
515 | return _bfd_vms_save_sized_string (ptr, len); | |
516 | } | |
252b5132 RH |
517 | \f |
518 | /* stack routines for vms ETIR commands */ | |
519 | ||
520 | /* Push value and section index */ | |
521 | ||
522 | void | |
523 | _bfd_vms_push (abfd, val, psect) | |
524 | bfd *abfd; | |
525 | uquad val; | |
526 | int psect; | |
527 | { | |
528 | static int last_psect; | |
529 | ||
530 | #if VMS_DEBUG | |
47eee8a9 | 531 | vms_debug (4, "<push %016lx(%d) at %d>\n", val, psect, PRIV (stackptr)); |
252b5132 RH |
532 | #endif |
533 | ||
534 | if (psect >= 0) | |
535 | last_psect = psect; | |
536 | ||
47eee8a9 KH |
537 | PRIV (stack[PRIV (stackptr)]).value = val; |
538 | PRIV (stack[PRIV (stackptr)]).psect = last_psect; | |
539 | PRIV (stackptr)++; | |
540 | if (PRIV (stackptr) >= STACKSIZE) | |
252b5132 RH |
541 | { |
542 | bfd_set_error (bfd_error_bad_value); | |
47eee8a9 | 543 | (*_bfd_error_handler) (_("Stack overflow (%d) in _bfd_vms_push"), PRIV (stackptr)); |
252b5132 RH |
544 | exit (1); |
545 | } | |
546 | return; | |
547 | } | |
548 | ||
252b5132 RH |
549 | /* Pop value and section index */ |
550 | ||
551 | uquad | |
552 | _bfd_vms_pop (abfd, psect) | |
553 | bfd *abfd; | |
554 | int *psect; | |
555 | { | |
556 | uquad value; | |
557 | ||
47eee8a9 | 558 | if (PRIV (stackptr) == 0) |
252b5132 RH |
559 | { |
560 | bfd_set_error (bfd_error_bad_value); | |
561 | (*_bfd_error_handler) (_("Stack underflow in _bfd_vms_pop")); | |
562 | exit (1); | |
563 | } | |
47eee8a9 KH |
564 | PRIV (stackptr)--; |
565 | value = PRIV (stack[PRIV (stackptr)]).value; | |
566 | if ((psect != NULL) && (PRIV (stack[PRIV (stackptr)]).psect >= 0)) | |
567 | *psect = PRIV (stack[PRIV (stackptr)]).psect; | |
252b5132 RH |
568 | |
569 | #if VMS_DEBUG | |
47eee8a9 | 570 | vms_debug (4, "<pop %016lx(%d)>\n", value, PRIV (stack[PRIV (stackptr)]).psect); |
252b5132 RH |
571 | #endif |
572 | ||
573 | return value; | |
574 | } | |
252b5132 RH |
575 | \f |
576 | /* object file output functions */ | |
577 | ||
578 | /* GAS tends to write sections in little chunks (bfd_set_section_contents) | |
579 | which we can't use directly. So we save the little chunks in linked | |
580 | lists (one per section) and write them later. */ | |
581 | ||
582 | /* Add a new vms_section structure to vms_section_table | |
583 | - forward chaining - */ | |
584 | ||
585 | static vms_section * | |
586 | add_new_contents (abfd, section) | |
587 | bfd *abfd; | |
588 | sec_ptr section; | |
589 | { | |
590 | vms_section *sptr, *newptr; | |
591 | ||
47eee8a9 | 592 | sptr = PRIV (vms_section_table)[section->index]; |
252b5132 RH |
593 | if (sptr != NULL) |
594 | return sptr; | |
595 | ||
dc810e39 | 596 | newptr = (vms_section *) bfd_malloc ((bfd_size_type) sizeof (vms_section)); |
252b5132 RH |
597 | if (newptr == (vms_section *) NULL) |
598 | return NULL; | |
dc810e39 AM |
599 | newptr->contents = (unsigned char *) bfd_alloc (abfd, section->_raw_size); |
600 | if (newptr->contents == (unsigned char *) NULL) | |
252b5132 RH |
601 | return NULL; |
602 | newptr->offset = 0; | |
603 | newptr->size = section->_raw_size; | |
604 | newptr->next = 0; | |
47eee8a9 | 605 | PRIV (vms_section_table)[section->index] = newptr; |
252b5132 RH |
606 | return newptr; |
607 | } | |
608 | ||
252b5132 RH |
609 | /* Save section data & offset to an vms_section structure |
610 | vms_section_table[] holds the vms_section chain */ | |
611 | ||
612 | boolean | |
613 | _bfd_save_vms_section (abfd, section, data, offset, count) | |
614 | bfd *abfd; | |
615 | sec_ptr section; | |
616 | PTR data; | |
617 | file_ptr offset; | |
618 | bfd_size_type count; | |
619 | { | |
620 | vms_section *sptr; | |
621 | ||
622 | if (section->index >= VMS_SECTION_COUNT) | |
623 | { | |
624 | bfd_set_error (bfd_error_nonrepresentable_section); | |
625 | return false; | |
626 | } | |
627 | if (count == (bfd_size_type)0) | |
628 | return true; | |
629 | sptr = add_new_contents (abfd, section); | |
630 | if (sptr == NULL) | |
631 | return false; | |
632 | memcpy (sptr->contents + offset, data, (size_t) count); | |
633 | ||
634 | return true; | |
635 | } | |
636 | ||
252b5132 RH |
637 | /* Get vms_section pointer to saved contents for section # index */ |
638 | ||
639 | vms_section * | |
640 | _bfd_get_vms_section (abfd, index) | |
641 | bfd *abfd; | |
642 | int index; | |
643 | { | |
644 | if (index >= VMS_SECTION_COUNT) | |
645 | { | |
646 | bfd_set_error (bfd_error_nonrepresentable_section); | |
647 | return NULL; | |
648 | } | |
47eee8a9 | 649 | return PRIV (vms_section_table)[index]; |
252b5132 | 650 | } |
252b5132 RH |
651 | \f |
652 | /* Object output routines */ | |
653 | ||
654 | /* Begin new record or record header | |
655 | write 2 bytes rectype | |
656 | write 2 bytes record length (filled in at flush) | |
657 | write 2 bytes header type (ommitted if rechead == -1) */ | |
658 | ||
659 | void | |
660 | _bfd_vms_output_begin (abfd, rectype, rechead) | |
661 | bfd *abfd; | |
662 | int rectype; | |
663 | int rechead; | |
664 | { | |
665 | #if VMS_DEBUG | |
666 | vms_debug (6, "_bfd_vms_output_begin(type %d, head %d)\n", rectype, | |
667 | rechead); | |
668 | #endif | |
669 | ||
dc810e39 | 670 | _bfd_vms_output_short (abfd, (unsigned int) rectype); |
252b5132 RH |
671 | |
672 | /* save current output position to fill in lenght later */ | |
673 | ||
47eee8a9 KH |
674 | if (PRIV (push_level) > 0) |
675 | PRIV (length_pos) = PRIV (output_size); | |
252b5132 RH |
676 | |
677 | #if VMS_DEBUG | |
678 | vms_debug (6, "_bfd_vms_output_begin: length_pos = %d\n", | |
47eee8a9 | 679 | PRIV (length_pos)); |
252b5132 RH |
680 | #endif |
681 | ||
dc810e39 | 682 | _bfd_vms_output_short (abfd, 0); /* placeholder for length */ |
252b5132 RH |
683 | |
684 | if (rechead != -1) | |
dc810e39 | 685 | _bfd_vms_output_short (abfd, (unsigned int) rechead); |
252b5132 RH |
686 | |
687 | return; | |
688 | } | |
689 | ||
252b5132 RH |
690 | /* Set record/subrecord alignment */ |
691 | ||
692 | void | |
693 | _bfd_vms_output_alignment (abfd, alignto) | |
694 | bfd *abfd; | |
695 | int alignto; | |
696 | { | |
697 | #if VMS_DEBUG | |
698 | vms_debug (6, "_bfd_vms_output_alignment(%d)\n", alignto); | |
699 | #endif | |
700 | ||
47eee8a9 | 701 | PRIV (output_alignment) = alignto; |
252b5132 RH |
702 | return; |
703 | } | |
704 | ||
252b5132 RH |
705 | /* Prepare for subrecord fields */ |
706 | ||
707 | void | |
708 | _bfd_vms_output_push (abfd) | |
709 | bfd *abfd; | |
710 | { | |
711 | #if VMS_DEBUG | |
47eee8a9 | 712 | vms_debug (6, "vms_output_push(pushed_size = %d)\n", PRIV (output_size)); |
252b5132 RH |
713 | #endif |
714 | ||
47eee8a9 KH |
715 | PRIV (push_level)++; |
716 | PRIV (pushed_size) = PRIV (output_size); | |
252b5132 RH |
717 | return; |
718 | } | |
719 | ||
252b5132 RH |
720 | /* End of subrecord fields */ |
721 | ||
722 | void | |
723 | _bfd_vms_output_pop (abfd) | |
724 | bfd *abfd; | |
725 | { | |
726 | #if VMS_DEBUG | |
47eee8a9 | 727 | vms_debug (6, "vms_output_pop(pushed_size = %d)\n", PRIV (pushed_size)); |
252b5132 RH |
728 | #endif |
729 | ||
730 | _bfd_vms_output_flush (abfd); | |
47eee8a9 | 731 | PRIV (length_pos) = 2; |
252b5132 RH |
732 | |
733 | #if VMS_DEBUG | |
47eee8a9 | 734 | vms_debug (6, "vms_output_pop: length_pos = %d\n", PRIV (length_pos)); |
252b5132 RH |
735 | #endif |
736 | ||
47eee8a9 KH |
737 | PRIV (pushed_size) = 0; |
738 | PRIV (push_level)--; | |
252b5132 RH |
739 | return; |
740 | } | |
741 | ||
252b5132 RH |
742 | /* Flush unwritten output, ends current record */ |
743 | ||
744 | void | |
745 | _bfd_vms_output_flush (abfd) | |
746 | bfd *abfd; | |
747 | { | |
47eee8a9 | 748 | int real_size = PRIV (output_size); |
252b5132 RH |
749 | int aligncount; |
750 | int length; | |
751 | ||
752 | #if VMS_DEBUG | |
753 | vms_debug (6, "_bfd_vms_output_flush(real_size = %d, pushed_size %d at lenpos %d)\n", | |
47eee8a9 | 754 | real_size, PRIV (pushed_size), PRIV (length_pos)); |
252b5132 RH |
755 | #endif |
756 | ||
47eee8a9 KH |
757 | if (PRIV (push_level) > 0) |
758 | length = real_size - PRIV (pushed_size); | |
252b5132 RH |
759 | else |
760 | length = real_size; | |
761 | ||
762 | if (length == 0) | |
763 | return; | |
47eee8a9 KH |
764 | aligncount = (PRIV (output_alignment) |
765 | - (length % PRIV (output_alignment))) % PRIV (output_alignment); | |
252b5132 RH |
766 | |
767 | #if VMS_DEBUG | |
768 | vms_debug (6, "align: adding %d bytes\n", aligncount); | |
769 | #endif | |
770 | ||
558e161f | 771 | while (aligncount-- > 0) |
252b5132 | 772 | { |
47eee8a9 | 773 | PRIV (output_buf)[real_size++] = 0; |
252b5132 RH |
774 | #if 0 |
775 | /* this is why I *love* vms: inconsistency :-} | |
776 | alignment is added to the subrecord length | |
777 | but not to the record length */ | |
47eee8a9 | 778 | if (PRIV (push_level) > 0) |
252b5132 RH |
779 | #endif |
780 | length++; | |
781 | } | |
782 | ||
783 | /* put length to buffer */ | |
47eee8a9 | 784 | PRIV (output_size) = PRIV (length_pos); |
dc810e39 | 785 | _bfd_vms_output_short (abfd, (unsigned int) length); |
252b5132 | 786 | |
47eee8a9 | 787 | if (PRIV (push_level) == 0) |
252b5132 RH |
788 | { |
789 | #ifndef VMS | |
790 | /* write length first, see FF_FOREIGN in the input routines */ | |
dc810e39 | 791 | fwrite (PRIV (output_buf) + 2, 2, 1, (FILE *) abfd->iostream); |
252b5132 | 792 | #endif |
dc810e39 AM |
793 | fwrite (PRIV (output_buf), (size_t) real_size, 1, |
794 | (FILE *) abfd->iostream); | |
252b5132 | 795 | |
47eee8a9 | 796 | PRIV (output_size) = 0; |
252b5132 RH |
797 | } |
798 | else | |
799 | { | |
47eee8a9 KH |
800 | PRIV (output_size) = real_size; |
801 | PRIV (pushed_size) = PRIV (output_size); | |
252b5132 RH |
802 | } |
803 | ||
804 | return; | |
805 | } | |
806 | ||
252b5132 RH |
807 | /* End record output */ |
808 | ||
809 | void | |
810 | _bfd_vms_output_end (abfd) | |
811 | bfd *abfd; | |
812 | { | |
813 | #if VMS_DEBUG | |
814 | vms_debug (6, "_bfd_vms_output_end\n"); | |
815 | #endif | |
816 | ||
817 | _bfd_vms_output_flush (abfd); | |
818 | ||
819 | return; | |
820 | } | |
821 | ||
252b5132 RH |
822 | /* check remaining buffer size |
823 | ||
824 | return what's left. */ | |
825 | ||
826 | int | |
827 | _bfd_vms_output_check (abfd, size) | |
828 | bfd *abfd; | |
829 | int size; | |
830 | { | |
831 | #if VMS_DEBUG | |
832 | vms_debug (6, "_bfd_vms_output_check(%d)\n", size); | |
833 | #endif | |
834 | ||
47eee8a9 | 835 | return (MAX_OUTREC_SIZE - (PRIV (output_size) + size + MIN_OUTREC_LUFT)); |
252b5132 RH |
836 | } |
837 | ||
252b5132 RH |
838 | /* Output byte (8 bit) value */ |
839 | ||
840 | void | |
841 | _bfd_vms_output_byte (abfd, value) | |
842 | bfd *abfd; | |
843 | unsigned int value; | |
844 | { | |
845 | #if VMS_DEBUG | |
846 | vms_debug (6, "_bfd_vms_output_byte(%02x)\n", value); | |
847 | #endif | |
848 | ||
47eee8a9 KH |
849 | bfd_put_8 (abfd, value & 0xff, PRIV (output_buf) + PRIV (output_size)); |
850 | PRIV (output_size) += 1; | |
252b5132 RH |
851 | return; |
852 | } | |
853 | ||
252b5132 RH |
854 | /* Output short (16 bit) value */ |
855 | ||
856 | void | |
857 | _bfd_vms_output_short (abfd, value) | |
858 | bfd *abfd; | |
859 | unsigned int value; | |
860 | { | |
861 | #if VMS_DEBUG | |
862 | vms_debug (6, "_bfd_vms_output_short (%04x)\n", value); | |
863 | #endif | |
864 | ||
dc810e39 AM |
865 | bfd_put_16 (abfd, (bfd_vma) value & 0xffff, |
866 | PRIV (output_buf) + PRIV (output_size)); | |
47eee8a9 | 867 | PRIV (output_size) += 2; |
252b5132 RH |
868 | return; |
869 | } | |
870 | ||
252b5132 RH |
871 | /* Output long (32 bit) value */ |
872 | ||
873 | void | |
874 | _bfd_vms_output_long (abfd, value) | |
875 | bfd *abfd; | |
876 | unsigned long value; | |
877 | { | |
878 | #if VMS_DEBUG | |
879 | vms_debug (6, "_bfd_vms_output_long (%08lx)\n", value); | |
880 | #endif | |
881 | ||
dc810e39 | 882 | bfd_put_32 (abfd, (bfd_vma) value, PRIV (output_buf) + PRIV (output_size)); |
47eee8a9 | 883 | PRIV (output_size) += 4; |
252b5132 RH |
884 | return; |
885 | } | |
886 | ||
252b5132 RH |
887 | /* Output quad (64 bit) value */ |
888 | ||
889 | void | |
890 | _bfd_vms_output_quad (abfd, value) | |
891 | bfd *abfd; | |
892 | uquad value; | |
893 | { | |
894 | #if VMS_DEBUG | |
895 | vms_debug (6, "_bfd_vms_output_quad(%016lx)\n", value); | |
896 | #endif | |
897 | ||
47eee8a9 KH |
898 | bfd_put_64(abfd, value, PRIV (output_buf) + PRIV (output_size)); |
899 | PRIV (output_size) += 8; | |
252b5132 RH |
900 | return; |
901 | } | |
902 | ||
252b5132 RH |
903 | /* Output c-string as counted string */ |
904 | ||
905 | void | |
906 | _bfd_vms_output_counted (abfd, value) | |
907 | bfd *abfd; | |
908 | char *value; | |
909 | { | |
910 | int len; | |
911 | ||
912 | #if VMS_DEBUG | |
913 | vms_debug (6, "_bfd_vms_output_counted(%s)\n", value); | |
914 | #endif | |
915 | ||
916 | len = strlen (value); | |
917 | if (len == 0) | |
918 | { | |
919 | (*_bfd_error_handler) (_("_bfd_vms_output_counted called with zero bytes")); | |
920 | return; | |
921 | } | |
922 | if (len > 255) | |
923 | { | |
924 | (*_bfd_error_handler) (_("_bfd_vms_output_counted called with too many bytes")); | |
925 | return; | |
926 | } | |
dc810e39 | 927 | _bfd_vms_output_byte (abfd, (unsigned int) len & 0xff); |
252b5132 RH |
928 | _bfd_vms_output_dump (abfd, (unsigned char *)value, len); |
929 | } | |
930 | ||
252b5132 RH |
931 | /* Output character area */ |
932 | ||
933 | void | |
934 | _bfd_vms_output_dump (abfd, data, length) | |
935 | bfd *abfd; | |
936 | unsigned char *data; | |
937 | int length; | |
938 | { | |
939 | #if VMS_DEBUG | |
940 | vms_debug (6, "_bfd_vms_output_dump(%d)\n", length); | |
941 | #endif | |
942 | ||
943 | if (length == 0) | |
944 | return; | |
945 | ||
dc810e39 | 946 | memcpy (PRIV (output_buf) + PRIV (output_size), data, (size_t) length); |
47eee8a9 | 947 | PRIV (output_size) += length; |
252b5132 RH |
948 | |
949 | return; | |
950 | } | |
951 | ||
252b5132 RH |
952 | /* Output count bytes of value */ |
953 | ||
954 | void | |
955 | _bfd_vms_output_fill (abfd, value, count) | |
956 | bfd *abfd; | |
957 | int value; | |
958 | int count; | |
959 | { | |
960 | #if VMS_DEBUG | |
961 | vms_debug (6, "_bfd_vms_output_fill(val %02x times %d)\n", value, count); | |
962 | #endif | |
963 | ||
964 | if (count == 0) | |
965 | return; | |
dc810e39 | 966 | memset (PRIV (output_buf) + PRIV (output_size), value, (size_t) count); |
47eee8a9 | 967 | PRIV (output_size) += count; |
252b5132 RH |
968 | |
969 | return; | |
970 | } | |
971 | ||
972 | /* this hash routine borrowed from GNU-EMACS, and strengthened slightly ERY*/ | |
973 | ||
974 | static int | |
975 | hash_string (ptr) | |
976 | const char *ptr; | |
977 | { | |
978 | register const unsigned char *p = (unsigned char *) ptr; | |
979 | register const unsigned char *end = p + strlen (ptr); | |
980 | register unsigned char c; | |
981 | register int hash = 0; | |
982 | ||
983 | while (p != end) | |
984 | { | |
985 | c = *p++; | |
986 | hash = ((hash << 3) + (hash << 15) + (hash >> 28) + c); | |
987 | } | |
988 | return hash; | |
989 | } | |
990 | ||
991 | /* Generate a length-hashed VMS symbol name (limited to maxlen chars). */ | |
992 | ||
993 | char * | |
994 | _bfd_vms_length_hash_symbol (abfd, in, maxlen) | |
995 | bfd *abfd; | |
996 | const char *in; | |
997 | int maxlen; | |
998 | { | |
252b5132 RH |
999 | long int result; |
1000 | int in_len; | |
252b5132 RH |
1001 | char *new_name; |
1002 | const char *old_name; | |
1003 | int i; | |
1004 | static char outbuf[EOBJ_S_C_SYMSIZ+1]; | |
1005 | char *out = outbuf; | |
1006 | ||
1007 | #if VMS_DEBUG | |
1008 | vms_debug(4, "_bfd_vms_length_hash_symbol \"%s\"\n", in); | |
1009 | #endif | |
1010 | ||
1011 | if (maxlen > EOBJ_S_C_SYMSIZ) | |
1012 | maxlen = EOBJ_S_C_SYMSIZ; | |
1013 | ||
1014 | new_name = out; /* save this for later. */ | |
1015 | ||
1016 | /* We may need to truncate the symbol, save the hash for later. */ | |
1017 | ||
1018 | in_len = strlen (in); | |
1019 | ||
1020 | result = (in_len > maxlen) ? hash_string (in) : 0; | |
1021 | ||
1022 | old_name = in; | |
1023 | ||
1024 | /* Do the length checking. */ | |
1025 | ||
1026 | if (in_len <= maxlen) | |
1027 | { | |
1028 | i = in_len; | |
1029 | } | |
1030 | else | |
1031 | { | |
47eee8a9 | 1032 | if (PRIV (flag_hash_long_names)) |
252b5132 RH |
1033 | i = maxlen-9; |
1034 | else | |
1035 | i = maxlen; | |
1036 | } | |
1037 | ||
dc810e39 | 1038 | strncpy (out, in, (size_t) i); |
252b5132 RH |
1039 | in += i; |
1040 | out += i; | |
1041 | ||
1042 | if ((in_len > maxlen) | |
47eee8a9 | 1043 | && PRIV (flag_hash_long_names)) |
e049a0de | 1044 | sprintf (out, "_%08lx", result); |
252b5132 RH |
1045 | else |
1046 | *out = 0; | |
1047 | ||
1048 | #if VMS_DEBUG | |
1049 | vms_debug(4, "--> [%d]\"%s\"\n", strlen (outbuf), outbuf); | |
1050 | #endif | |
1051 | ||
1052 | if (in_len > maxlen | |
47eee8a9 KH |
1053 | && PRIV (flag_hash_long_names) |
1054 | && PRIV (flag_show_after_trunc)) | |
252b5132 RH |
1055 | printf (_("Symbol %s replaced by %s\n"), old_name, new_name); |
1056 | ||
1057 | return outbuf; | |
1058 | } | |
1059 | ||
252b5132 RH |
1060 | /* Allocate and initialize a new symbol. */ |
1061 | ||
1062 | static asymbol * | |
1063 | new_symbol (abfd, name) | |
1064 | bfd *abfd; | |
1065 | char *name; | |
1066 | { | |
1067 | asymbol *symbol; | |
1068 | ||
1069 | #if VMS_DEBUG | |
1070 | _bfd_vms_debug (7, "new_symbol %s\n", name); | |
1071 | #endif | |
1072 | ||
3f3c5c34 | 1073 | symbol = bfd_make_empty_symbol (abfd); |
252b5132 RH |
1074 | if (symbol == 0) |
1075 | return symbol; | |
1076 | symbol->name = name; | |
1077 | symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); | |
1078 | ||
1079 | return symbol; | |
1080 | } | |
1081 | ||
252b5132 RH |
1082 | /* Allocate and enter a new private symbol. */ |
1083 | ||
1084 | vms_symbol_entry * | |
1085 | _bfd_vms_enter_symbol (abfd, name) | |
1086 | bfd *abfd; | |
1087 | char *name; | |
1088 | { | |
1089 | vms_symbol_entry *entry; | |
1090 | ||
1091 | #if VMS_DEBUG | |
1092 | _bfd_vms_debug (6, "_bfd_vms_enter_symbol %s\n", name); | |
1093 | #endif | |
1094 | ||
1095 | entry = (vms_symbol_entry *) | |
47eee8a9 | 1096 | bfd_hash_lookup (PRIV (vms_symbol_table), name, false, false); |
252b5132 RH |
1097 | if (entry == 0) |
1098 | { | |
1099 | #if VMS_DEBUG | |
1100 | _bfd_vms_debug (8, "creating hash entry for %s\n", name); | |
1101 | #endif | |
47eee8a9 | 1102 | entry = (vms_symbol_entry *)bfd_hash_lookup (PRIV (vms_symbol_table), name, true, false); |
252b5132 RH |
1103 | if (entry != 0) |
1104 | { | |
1105 | asymbol *symbol; | |
1106 | symbol = new_symbol (abfd, name); | |
1107 | if (symbol != 0) | |
1108 | { | |
1109 | entry->symbol = symbol; | |
47eee8a9 | 1110 | PRIV (gsd_sym_count)++; |
252b5132 RH |
1111 | abfd->symcount++; |
1112 | } | |
1113 | else | |
1114 | entry = 0; | |
1115 | } | |
1116 | else | |
1117 | (*_bfd_error_handler) (_("failed to enter %s"), name); | |
1118 | } | |
1119 | else | |
1120 | { | |
1121 | #if VMS_DEBUG | |
1122 | _bfd_vms_debug (8, "found hash entry for %s\n", name); | |
1123 | #endif | |
1124 | } | |
1125 | ||
1126 | #if VMS_DEBUG | |
1127 | _bfd_vms_debug (7, "-> entry %p, entry->symbol %p\n", entry, entry->symbol); | |
1128 | #endif | |
1129 | return entry; | |
1130 | } |