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