1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2014 Free Software Foundation, Inc.
3 Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 @setfilename archive-info
27 An archive (or library) is just another BFD. It has a symbol
28 table, although there's not much a user program will do with it.
30 The big difference between an archive BFD and an ordinary BFD
31 is that the archive doesn't have sections. Instead it has a
32 chain of BFDs that are considered its contents. These BFDs can
33 be manipulated like any other. The BFDs contained in an
34 archive opened for reading will all be opened for reading. You
35 may put either input or output BFDs into an archive opened for
36 output; they will be handled correctly when the archive is closed.
38 Use <<bfd_openr_next_archived_file>> to step through
39 the contents of an archive opened for input. You don't
40 have to read the entire archive if you don't want
41 to! Read it until you find what you want.
43 A BFD returned by <<bfd_openr_next_archived_file>> can be
44 closed manually with <<bfd_close>>. If you do not close it,
45 then a second iteration through the members of an archive may
46 return the same BFD. If you close the archive BFD, then all
47 the member BFDs will automatically be closed as well.
49 Archive contents of output BFDs are chained through the
50 <<archive_next>> pointer in a BFD. The first one is findable
51 through the <<archive_head>> slot of the archive. Set it with
52 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only
53 one open output archive at a time.
55 As expected, the BFD archive code is more general than the
56 archive code of any given environment. BFD archives may
57 contain files of different formats (e.g., a.out and coff) and
58 even different architectures. You may even place archives
59 recursively into archives!
61 This can cause unexpected confusion, since some archive
62 formats are more expressive than others. For instance, Intel
63 COFF archives can preserve long filenames; SunOS a.out archives
64 cannot. If you move a file from the first to the second
65 format and back again, the filename may be truncated.
66 Likewise, different a.out environments have different
67 conventions as to how they truncate filenames, whether they
68 preserve directory names in filenames, etc. When
69 interoperating with native tools, be sure your files are
72 Beware: most of these formats do not react well to the
73 presence of spaces in filenames. We do the best we can, but
74 can't always handle this case due to restrictions in the format of
75 archives. Many Unix utilities are braindead in regards to
76 spaces and such in filenames anyway, so this shouldn't be much
79 Archives are supported in BFD in <<archive.c>>.
86 o - all archive elements start on an even boundary, newline padded;
87 o - all arch headers are char *;
88 o - all arch headers are the same size (across architectures).
91 /* Some formats provide a way to cram a long filename into the short
92 (16 chars) space provided by a BSD archive. The trick is: make a
93 special "file" in the front of the archive, sort of like the SYMDEF
94 entry. If the filename is too long to fit, put it in the extended
95 name table, and use its index as the filename. To prevent
96 confusion prepend the index with a space. This means you can't
97 have filenames that start with a space, but then again, many Unix
98 utilities can't handle that anyway.
100 This scheme unfortunately requires that you stand on your head in
101 order to write an archive since you need to put a magic file at the
102 front, and need to touch every entry to do so. C'est la vie.
104 We support two variants of this idea:
105 The SVR4 format (extended name table is named "//"),
106 and an extended pseudo-BSD variant (extended name table is named
107 "ARFILENAMES/"). The origin of the latter format is uncertain.
109 BSD 4.4 uses a third scheme: It writes a long filename
110 directly after the header. This allows 'ar q' to work.
113 /* Summary of archive member names:
115 Symbol table (must be first):
116 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
117 "/ " - Symbol table, system 5 style.
119 Long name table (must be before regular file members):
120 "// " - Long name table, System 5 R4 style.
121 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
123 Regular file members with short names:
124 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
125 "filename.o " - Regular file, Berkeley style (no embedded spaces).
127 Regular files with long names (or embedded spaces, for BSD variants):
128 "/18 " - SVR4 style, name at offset 18 in name table.
129 "#1/23 " - Long name (or embedded spaces) 23 characters long,
130 BSD 4.4 style, full name follows header.
131 " 18 " - Long name 18 characters long, extended pseudo-BSD.
136 #include "libiberty.h"
139 #include "aout/ranlib.h"
140 #include "safe-ctype.h"
142 #include "filenames.h"
149 /* We keep a cache of archive filepointers to archive elements to
150 speed up searching the archive by filepos. We only add an entry to
151 the cache when we actually read one. We also don't sort the cache;
152 it's generally short enough to search linearly.
153 Note that the pointers here point to the front of the ar_hdr, not
154 to the front of the contents! */
161 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
162 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
164 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
165 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
167 /* True iff NAME designated a BSD 4.4 extended name. */
169 #define is_bsd44_extended_name(NAME) \
170 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
173 _bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
178 snprintf (buf, sizeof (buf), fmt, val);
182 memcpy (p, buf, len);
183 memset (p + len, ' ', n - len);
190 _bfd_ar_sizepad (char *p, size_t n, bfd_size_type size)
195 snprintf (buf, sizeof (buf), "%-10" BFD_VMA_FMT "u", size);
199 bfd_set_error (bfd_error_file_too_big);
204 memcpy (p, buf, len);
205 memset (p + len, ' ', n - len);
213 _bfd_generic_mkarchive (bfd *abfd)
215 bfd_size_type amt = sizeof (struct artdata);
217 abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc (abfd, amt);
218 if (bfd_ardata (abfd) == NULL)
221 /* Already cleared by bfd_zalloc above.
222 bfd_ardata (abfd)->cache = NULL;
223 bfd_ardata (abfd)->archive_head = NULL;
224 bfd_ardata (abfd)->symdefs = NULL;
225 bfd_ardata (abfd)->extended_names = NULL;
226 bfd_ardata (abfd)->extended_names_size = 0;
227 bfd_ardata (abfd)->tdata = NULL; */
237 symindex bfd_get_next_mapent
238 (bfd *abfd, symindex previous, carsym **sym);
241 Step through archive @var{abfd}'s symbol table (if it
242 has one). Successively update @var{sym} with the next symbol's
243 information, returning that symbol's (internal) index into the
246 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
247 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
250 A <<carsym>> is a canonical archive symbol. The only
251 user-visible element is its name, a null-terminated string.
255 bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
257 if (!bfd_has_map (abfd))
259 bfd_set_error (bfd_error_invalid_operation);
260 return BFD_NO_MORE_SYMBOLS;
263 if (prev == BFD_NO_MORE_SYMBOLS)
267 if (prev >= bfd_ardata (abfd)->symdef_count)
268 return BFD_NO_MORE_SYMBOLS;
270 *entry = (bfd_ardata (abfd)->symdefs + prev);
274 /* To be called by backends only. */
277 _bfd_create_empty_archive_element_shell (bfd *obfd)
279 return _bfd_new_bfd_contained_in (obfd);
287 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
290 Set the head of the chain of
291 BFDs contained in the archive @var{output} to @var{new_head}.
295 bfd_set_archive_head (bfd *output_archive, bfd *new_head)
297 output_archive->archive_head = new_head;
302 _bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
304 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
311 struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
321 hash_file_ptr (const void * p)
323 return (hashval_t) (((struct ar_cache *) p)->ptr);
326 /* Returns non-zero if P1 and P2 are equal. */
329 eq_file_ptr (const void * p1, const void * p2)
331 struct ar_cache *arc1 = (struct ar_cache *) p1;
332 struct ar_cache *arc2 = (struct ar_cache *) p2;
333 return arc1->ptr == arc2->ptr;
336 /* The calloc function doesn't always take size_t (e.g. on VMS)
337 so wrap it to avoid a compile time warning. */
340 _bfd_calloc_wrapper (size_t a, size_t b)
342 return calloc (a, b);
345 /* Kind of stupid to call cons for each one, but we don't do too many. */
348 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
350 struct ar_cache *cache;
351 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
353 /* If the hash table hasn't been created, create it. */
354 if (hash_table == NULL)
356 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
357 NULL, _bfd_calloc_wrapper, free);
358 if (hash_table == NULL)
360 bfd_ardata (arch_bfd)->cache = hash_table;
363 /* Insert new_elt into the hash table by filepos. */
364 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
365 cache->ptr = filepos;
366 cache->arbfd = new_elt;
367 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
369 /* Provide a means of accessing this from child. */
370 arch_eltdata (new_elt)->parent_cache = hash_table;
371 arch_eltdata (new_elt)->key = filepos;
377 _bfd_find_nested_archive (bfd *arch_bfd, const char *filename)
382 /* PR 15140: Don't allow a nested archive pointing to itself. */
383 if (filename_cmp (filename, arch_bfd->filename) == 0)
385 bfd_set_error (bfd_error_malformed_archive);
389 for (abfd = arch_bfd->nested_archives;
391 abfd = abfd->archive_next)
393 if (filename_cmp (filename, abfd->filename) == 0)
397 if (!arch_bfd->target_defaulted)
398 target = arch_bfd->xvec->name;
399 abfd = bfd_openr (filename, target);
402 abfd->archive_next = arch_bfd->nested_archives;
403 arch_bfd->nested_archives = abfd;
408 /* The name begins with space. Hence the rest of the name is an index into
412 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
414 unsigned long table_index = 0;
417 /* Should extract string so that I can guarantee not to overflow into
418 the next region, but I'm too lazy. */
420 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
421 table_index = strtol (name + 1, (char **) &endp, 10);
422 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
424 bfd_set_error (bfd_error_malformed_archive);
427 /* In a thin archive, a member of an archive-within-an-archive
428 will have the offset in the inner archive encoded here. */
429 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
431 file_ptr origin = strtol (endp + 1, NULL, 10);
435 bfd_set_error (bfd_error_malformed_archive);
443 return bfd_ardata (arch)->extended_names + table_index;
446 /* This functions reads an arch header and returns an areltdata pointer, or
449 Presumes the file pointer is already in the right place (ie pointing
450 to the ar_hdr in the file). Moves the file pointer; on success it
451 should be pointing to the front of the file contents; on failure it
452 could have been moved arbitrarily. */
455 _bfd_generic_read_ar_hdr (bfd *abfd)
457 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
460 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
461 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
464 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
467 char *hdrp = (char *) &hdr;
468 bfd_size_type parsed_size;
469 struct areltdata *ared;
470 char *filename = NULL;
471 bfd_size_type namelen = 0;
472 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
475 unsigned int extra_size = 0;
479 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
481 if (bfd_get_error () != bfd_error_system_call)
482 bfd_set_error (bfd_error_no_more_archived_files);
485 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
487 || strncmp (hdr.ar_fmag, mag, 2) != 0))
489 bfd_set_error (bfd_error_malformed_archive);
494 fmag_save = hdr.ar_fmag[0];
496 scan = sscanf (hdr.ar_size, "%" BFD_VMA_FMT "u", &parsed_size);
497 hdr.ar_fmag[0] = fmag_save;
500 bfd_set_error (bfd_error_malformed_archive);
504 /* Extract the filename from the archive - there are two ways to
505 specify an extended name table, either the first char of the
506 name is a space, or it's a slash. */
507 if ((hdr.ar_name[0] == '/'
508 || (hdr.ar_name[0] == ' '
509 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
510 && bfd_ardata (abfd)->extended_names != NULL)
512 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
513 if (filename == NULL)
516 /* BSD4.4-style long filename. */
517 else if (is_bsd44_extended_name (hdr.ar_name))
519 /* BSD-4.4 extended name */
520 namelen = atoi (&hdr.ar_name[3]);
521 allocsize += namelen + 1;
522 parsed_size -= namelen;
523 extra_size = namelen;
525 allocptr = (char *) bfd_zmalloc (allocsize);
526 if (allocptr == NULL)
529 + sizeof (struct areltdata)
530 + sizeof (struct ar_hdr));
531 if (bfd_bread (filename, namelen, abfd) != namelen)
534 if (bfd_get_error () != bfd_error_system_call)
535 bfd_set_error (bfd_error_no_more_archived_files);
538 filename[namelen] = '\0';
542 /* We judge the end of the name by looking for '/' or ' '.
543 Note: The SYSV format (terminated by '/') allows embedded
544 spaces, so only look for ' ' if we don't find '/'. */
547 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
550 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
552 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
556 namelen = e - hdr.ar_name;
559 /* If we didn't find a termination character, then the name
560 must be the entire field. */
561 namelen = ar_maxnamelen (abfd);
564 allocsize += namelen + 1;
569 allocptr = (char *) bfd_zmalloc (allocsize);
570 if (allocptr == NULL)
574 ared = (struct areltdata *) allocptr;
576 ared->arch_header = allocptr + sizeof (struct areltdata);
577 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
578 ared->parsed_size = parsed_size;
579 ared->extra_size = extra_size;
580 ared->origin = origin;
582 if (filename != NULL)
583 ared->filename = filename;
586 ared->filename = allocptr + (sizeof (struct areltdata) +
587 sizeof (struct ar_hdr));
589 memcpy (ared->filename, hdr.ar_name, namelen);
590 ared->filename[namelen] = '\0';
596 /* Append the relative pathname for a member of the thin archive
597 to the pathname of the directory containing the archive. */
600 _bfd_append_relative_path (bfd *arch, char *elt_name)
602 const char *arch_name = arch->filename;
603 const char *base_name = lbasename (arch_name);
607 if (base_name == arch_name)
610 prefix_len = base_name - arch_name;
611 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
612 if (filename == NULL)
615 strncpy (filename, arch_name, prefix_len);
616 strcpy (filename + prefix_len, elt_name);
620 /* This is an internal function; it's mainly used when indexing
621 through the archive symbol table, but also used to get the next
622 element, since it handles the bookkeeping so nicely for us. */
625 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
627 struct areltdata *new_areldata;
631 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
635 if (0 > bfd_seek (archive, filepos, SEEK_SET))
638 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
641 filename = new_areldata->filename;
643 if (bfd_is_thin_archive (archive))
647 /* This is a proxy entry for an external file. */
648 if (! IS_ABSOLUTE_PATH (filename))
650 filename = _bfd_append_relative_path (archive, filename);
651 if (filename == NULL)
658 if (new_areldata->origin > 0)
660 /* This proxy entry refers to an element of a nested archive.
661 Locate the member of that archive and return a bfd for it. */
662 bfd *ext_arch = _bfd_find_nested_archive (archive, filename);
665 || ! bfd_check_format (ext_arch, bfd_archive))
670 n_nfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
676 n_nfd->proxy_origin = bfd_tell (archive);
679 /* It's not an element of a nested archive;
680 open the external file as a bfd. */
682 if (!archive->target_defaulted)
683 target = archive->xvec->name;
684 n_nfd = bfd_openr (filename, target);
686 bfd_set_error (bfd_error_malformed_archive);
690 n_nfd = _bfd_create_empty_archive_element_shell (archive);
699 n_nfd->proxy_origin = bfd_tell (archive);
701 if (bfd_is_thin_archive (archive))
707 n_nfd->origin = n_nfd->proxy_origin;
708 n_nfd->filename = xstrdup (filename);
711 n_nfd->arelt_data = new_areldata;
713 /* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
714 n_nfd->flags |= archive->flags & (BFD_COMPRESS | BFD_DECOMPRESS);
716 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
720 n_nfd->arelt_data = NULL;
724 /* Return the BFD which is referenced by the symbol in ABFD indexed by
725 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
728 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
732 entry = bfd_ardata (abfd)->symdefs + sym_index;
733 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
738 bfd_openr_next_archived_file
741 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
744 Provided a BFD, @var{archive}, containing an archive and NULL, open
745 an input BFD on the first contained element and returns that.
746 Subsequent calls should pass
747 the archive and the previous return value to return a created
748 BFD to the next contained element. NULL is returned when there
753 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
755 if ((bfd_get_format (archive) != bfd_archive)
756 || (archive->direction == write_direction))
758 bfd_set_error (bfd_error_invalid_operation);
762 return BFD_SEND (archive,
763 openr_next_archived_file, (archive, last_file));
767 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
772 filestart = bfd_ardata (archive)->first_file_filepos;
775 bfd_size_type size = arelt_size (last_file);
777 filestart = last_file->proxy_origin;
778 if (! bfd_is_thin_archive (archive))
780 /* Pad to an even boundary...
781 Note that last_file->origin can be odd in the case of
782 BSD-4.4-style element with a long odd size. */
783 filestart += filestart % 2;
786 return _bfd_get_elt_at_filepos (archive, filestart);
790 bfd_generic_archive_p (bfd *abfd)
792 struct artdata *tdata_hold;
793 char armag[SARMAG + 1];
796 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
798 if (bfd_get_error () != bfd_error_system_call)
799 bfd_set_error (bfd_error_wrong_format);
803 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
805 if (strncmp (armag, ARMAG, SARMAG) != 0
806 && strncmp (armag, ARMAGB, SARMAG) != 0
807 && ! bfd_is_thin_archive (abfd))
810 tdata_hold = bfd_ardata (abfd);
812 amt = sizeof (struct artdata);
813 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
814 if (bfd_ardata (abfd) == NULL)
816 bfd_ardata (abfd) = tdata_hold;
820 bfd_ardata (abfd)->first_file_filepos = SARMAG;
821 /* Cleared by bfd_zalloc above.
822 bfd_ardata (abfd)->cache = NULL;
823 bfd_ardata (abfd)->archive_head = NULL;
824 bfd_ardata (abfd)->symdefs = NULL;
825 bfd_ardata (abfd)->extended_names = NULL;
826 bfd_ardata (abfd)->extended_names_size = 0;
827 bfd_ardata (abfd)->tdata = NULL; */
829 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
830 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
832 if (bfd_get_error () != bfd_error_system_call)
833 bfd_set_error (bfd_error_wrong_format);
834 bfd_release (abfd, bfd_ardata (abfd));
835 bfd_ardata (abfd) = tdata_hold;
839 if (abfd->target_defaulted && bfd_has_map (abfd))
843 /* This archive has a map, so we may presume that the contents
844 are object files. Make sure that if the first file in the
845 archive can be recognized as an object file, it is for this
846 target. If not, assume that this is the wrong format. If
847 the first file is not an object file, somebody is doing
848 something weird, and we permit it so that ar -t will work.
850 This is done because any normal format will recognize any
851 normal archive, regardless of the format of the object files.
852 We do accept an empty archive. */
854 first = bfd_openr_next_archived_file (abfd, NULL);
857 first->target_defaulted = FALSE;
858 if (bfd_check_format (first, bfd_object)
859 && first->xvec != abfd->xvec)
860 bfd_set_error (bfd_error_wrong_object_format);
861 /* And we ought to close `first' here too. */
868 /* Some constants for a 32 bit BSD archive structure. We do not
869 support 64 bit archives presently; so far as I know, none actually
870 exist. Supporting them would require changing these constants, and
871 changing some H_GET_32 to H_GET_64. */
873 /* The size of an external symdef structure. */
874 #define BSD_SYMDEF_SIZE 8
876 /* The offset from the start of a symdef structure to the file offset. */
877 #define BSD_SYMDEF_OFFSET_SIZE 4
879 /* The size of the symdef count. */
880 #define BSD_SYMDEF_COUNT_SIZE 4
882 /* The size of the string count. */
883 #define BSD_STRING_COUNT_SIZE 4
885 /* Read a BSD-style archive symbol table. Returns FALSE on error,
889 do_slurp_bsd_armap (bfd *abfd)
891 struct areltdata *mapdata;
892 unsigned int counter;
893 bfd_byte *raw_armap, *rbase;
894 struct artdata *ardata = bfd_ardata (abfd);
896 bfd_size_type parsed_size, amt;
899 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
902 parsed_size = mapdata->parsed_size;
904 /* PR 17512: file: 883ff754. */
905 /* PR 17512: file: 0458885f. */
909 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
910 if (raw_armap == NULL)
913 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
915 if (bfd_get_error () != bfd_error_system_call)
916 bfd_set_error (bfd_error_malformed_archive);
918 bfd_release (abfd, raw_armap);
922 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
924 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
925 parsed_size - BSD_SYMDEF_COUNT_SIZE)
927 /* Probably we're using the wrong byte ordering. */
928 bfd_set_error (bfd_error_wrong_format);
933 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
934 stringbase = ((char *) rbase
935 + ardata->symdef_count * BSD_SYMDEF_SIZE
936 + BSD_STRING_COUNT_SIZE);
937 amt = ardata->symdef_count * sizeof (carsym);
938 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
939 if (!ardata->symdefs)
942 for (counter = 0, set = ardata->symdefs;
943 counter < ardata->symdef_count;
944 counter++, set++, rbase += BSD_SYMDEF_SIZE)
946 set->name = H_GET_32 (abfd, rbase) + stringbase;
947 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
950 ardata->first_file_filepos = bfd_tell (abfd);
951 /* Pad to an even boundary if you have to. */
952 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
953 /* FIXME, we should provide some way to free raw_ardata when
954 we are done using the strings from it. For now, it seems
955 to be allocated on an objalloc anyway... */
956 bfd_has_map (abfd) = TRUE;
960 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
964 do_slurp_coff_armap (bfd *abfd)
966 struct areltdata *mapdata;
967 int *raw_armap, *rawptr;
968 struct artdata *ardata = bfd_ardata (abfd);
970 bfd_size_type stringsize;
971 bfd_size_type parsed_size;
973 bfd_size_type nsymz; /* Number of symbols in armap. */
974 bfd_vma (*swap) (const void *);
975 char int_buf[sizeof (long)];
976 bfd_size_type carsym_size, ptrsize;
979 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
982 parsed_size = mapdata->parsed_size;
985 if (bfd_bread (int_buf, 4, abfd) != 4)
987 if (bfd_get_error () != bfd_error_system_call)
988 bfd_set_error (bfd_error_malformed_archive);
991 /* It seems that all numeric information in a coff archive is always
992 in big endian format, nomatter the host or target. */
994 nsymz = bfd_getb32 (int_buf);
995 stringsize = parsed_size - (4 * nsymz) - 4;
997 /* ... except that some archive formats are broken, and it may be our
998 fault - the i960 little endian coff sometimes has big and sometimes
999 little, because our tools changed. Here's a horrible hack to clean
1002 if (stringsize > 0xfffff
1003 && bfd_get_arch (abfd) == bfd_arch_i960
1004 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1006 /* This looks dangerous, let's do it the other way around. */
1007 nsymz = bfd_getl32 (int_buf);
1008 stringsize = parsed_size - (4 * nsymz) - 4;
1012 /* The coff armap must be read sequentially. So we construct a
1013 bsd-style one in core all at once, for simplicity. */
1015 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
1018 carsym_size = (nsymz * sizeof (carsym));
1019 ptrsize = (4 * nsymz);
1021 if (carsym_size + stringsize + 1 <= carsym_size)
1024 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
1025 carsym_size + stringsize + 1);
1026 if (ardata->symdefs == NULL)
1028 carsyms = ardata->symdefs;
1029 stringbase = ((char *) ardata->symdefs) + carsym_size;
1031 /* Allocate and read in the raw offsets. */
1032 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
1033 if (raw_armap == NULL)
1034 goto release_symdefs;
1035 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
1036 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
1038 if (bfd_get_error () != bfd_error_system_call)
1039 bfd_set_error (bfd_error_malformed_archive);
1040 goto release_raw_armap;
1043 /* OK, build the carsyms. */
1044 for (i = 0; i < nsymz && stringsize > 0; i++)
1048 rawptr = raw_armap + i;
1049 carsyms->file_offset = swap ((bfd_byte *) rawptr);
1050 carsyms->name = stringbase;
1051 /* PR 17512: file: 4a1d50c1. */
1052 len = strnlen (stringbase, stringsize);
1053 if (len < stringsize)
1061 ardata->symdef_count = nsymz;
1062 ardata->first_file_filepos = bfd_tell (abfd);
1063 /* Pad to an even boundary if you have to. */
1064 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1066 bfd_has_map (abfd) = TRUE;
1067 bfd_release (abfd, raw_armap);
1069 /* Check for a second archive header (as used by PE). */
1071 struct areltdata *tmp;
1073 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1074 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1077 if (tmp->arch_header[0] == '/'
1078 && tmp->arch_header[1] == ' ')
1080 ardata->first_file_filepos +=
1081 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1090 bfd_release (abfd, raw_armap);
1092 bfd_release (abfd, (ardata)->symdefs);
1096 /* This routine can handle either coff-style or bsd-style armaps
1097 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1100 bfd_slurp_armap (bfd *abfd)
1103 int i = bfd_bread (nextname, 16, abfd);
1110 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1113 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1114 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1115 return do_slurp_bsd_armap (abfd);
1116 else if (CONST_STRNEQ (nextname, "/ "))
1117 return do_slurp_coff_armap (abfd);
1118 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1120 /* 64bit ELF (Irix 6) archive. */
1122 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
1123 return bfd_elf64_archive_slurp_armap (abfd);
1125 bfd_set_error (bfd_error_wrong_format);
1129 else if (CONST_STRNEQ (nextname, "#1/20 "))
1131 /* Mach-O has a special name for armap when the map is sorted by name.
1132 However because this name has a space it is slightly more difficult
1137 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1139 /* Read the extended name. We know its length. */
1140 if (bfd_bread (extname, 20, abfd) != 20)
1142 if (bfd_seek (abfd, -(file_ptr) (sizeof (hdr) + 20), SEEK_CUR) != 0)
1145 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1146 || CONST_STRNEQ (extname, "__.SYMDEF"))
1147 return do_slurp_bsd_armap (abfd);
1150 bfd_has_map (abfd) = FALSE;
1154 /* Returns FALSE on error, TRUE otherwise. */
1155 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1156 header is in a slightly different order and the map name is '/'.
1157 This flavour is used by hp300hpux. */
1159 #define HPUX_SYMDEF_COUNT_SIZE 2
1162 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1164 struct areltdata *mapdata;
1166 unsigned int counter;
1167 bfd_byte *raw_armap, *rbase;
1168 struct artdata *ardata = bfd_ardata (abfd);
1170 unsigned int stringsize;
1174 int i = bfd_bread (nextname, 16, abfd);
1181 /* The archive has at least 16 bytes in it. */
1182 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1185 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1186 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1187 return do_slurp_bsd_armap (abfd);
1189 if (! CONST_STRNEQ (nextname, "/ "))
1191 bfd_has_map (abfd) = FALSE;
1195 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1196 if (mapdata == NULL)
1199 if (mapdata->parsed_size < HPUX_SYMDEF_COUNT_SIZE + BSD_STRING_COUNT_SIZE)
1203 bfd_set_error (bfd_error_wrong_format);
1207 left = mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE - BSD_STRING_COUNT_SIZE;
1209 amt = mapdata->parsed_size;
1212 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1213 if (raw_armap == NULL)
1216 if (bfd_bread (raw_armap, amt, abfd) != amt)
1218 if (bfd_get_error () != bfd_error_system_call)
1219 bfd_set_error (bfd_error_malformed_archive);
1223 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1227 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1228 if (stringsize > left)
1232 /* Skip sym count and string sz. */
1233 stringbase = ((char *) raw_armap
1234 + HPUX_SYMDEF_COUNT_SIZE
1235 + BSD_STRING_COUNT_SIZE);
1236 rbase = (bfd_byte *) stringbase + stringsize;
1237 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1241 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1242 if (!ardata->symdefs)
1245 for (counter = 0, set = ardata->symdefs;
1246 counter < ardata->symdef_count;
1247 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1249 set->name = H_GET_32 (abfd, rbase) + stringbase;
1250 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1253 ardata->first_file_filepos = bfd_tell (abfd);
1254 /* Pad to an even boundary if you have to. */
1255 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1256 /* FIXME, we should provide some way to free raw_ardata when
1257 we are done using the strings from it. For now, it seems
1258 to be allocated on an objalloc anyway... */
1259 bfd_has_map (abfd) = TRUE;
1263 /** Extended name table.
1265 Normally archives support only 14-character filenames.
1267 Intel has extended the format: longer names are stored in a special
1268 element (the first in the archive, or second if there is an armap);
1269 the name in the ar_hdr is replaced by <space><index into filename
1270 element>. Index is the P.R. of an int (decimal). Data General have
1271 extended the format by using the prefix // for the special element. */
1273 /* Returns FALSE on error, TRUE otherwise. */
1276 _bfd_slurp_extended_name_table (bfd *abfd)
1279 struct areltdata *namedata;
1282 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1283 we probably don't want to return TRUE. */
1284 if (bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET) != 0)
1287 if (bfd_bread (nextname, 16, abfd) == 16)
1289 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1292 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1293 && ! CONST_STRNEQ (nextname, "// "))
1295 bfd_ardata (abfd)->extended_names = NULL;
1296 bfd_ardata (abfd)->extended_names_size = 0;
1300 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1301 if (namedata == NULL)
1304 amt = namedata->parsed_size;
1308 bfd_ardata (abfd)->extended_names_size = amt;
1309 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1310 if (bfd_ardata (abfd)->extended_names == NULL)
1314 bfd_ardata (abfd)->extended_names = NULL;
1315 bfd_ardata (abfd)->extended_names_size = 0;
1319 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1321 if (bfd_get_error () != bfd_error_system_call)
1322 bfd_set_error (bfd_error_malformed_archive);
1323 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1324 bfd_ardata (abfd)->extended_names = NULL;
1328 /* Since the archive is supposed to be printable if it contains
1329 text, the entries in the list are newline-padded, not null
1330 padded. In SVR4-style archives, the names also have a
1331 trailing '/'. DOS/NT created archive often have \ in them
1332 We'll fix all problems here. */
1334 char *ext_names = bfd_ardata (abfd)->extended_names;
1335 char *temp = ext_names;
1336 char *limit = temp + namedata->parsed_size;
1338 for (; temp < limit; ++temp)
1340 if (*temp == ARFMAG[1])
1341 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1348 /* Pad to an even boundary if you have to. */
1349 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1350 bfd_ardata (abfd)->first_file_filepos +=
1351 (bfd_ardata (abfd)->first_file_filepos) % 2;
1360 /* Return a copy of the stuff in the filename between any :]> and a
1364 normalize (bfd *abfd, const char *file)
1370 first = file + strlen (file) - 1;
1373 while (first != file)
1377 if (*first == ':' || *first == ']' || *first == '>')
1385 copy = bfd_alloc (abfd, last - first + 1);
1389 memcpy (copy, first, last - first);
1390 copy[last - first] = 0;
1397 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1399 return lbasename (file);
1403 /* Adjust a relative path name based on the reference path.
1406 Relative path Reference path Result
1407 ------------- -------------- ------
1409 foo/bar.o lib.a foo/bar.o
1410 bar.o foo/lib.a ../bar.o
1411 foo/bar.o baz/lib.a ../foo/bar.o
1412 bar.o ../lib.a <parent of current dir>/bar.o
1413 ; ../bar.o ../lib.a bar.o
1414 ; ../bar.o lib.a ../bar.o
1415 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1416 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1417 bar.o foo/baz/lib.a ../../bar.o
1419 Note - the semicolons above are there to prevent the BFD chew
1420 utility from interpreting those lines as prototypes to put into
1421 the autogenerated bfd.h header...
1423 Note - the string is returned in a static buffer. */
1426 adjust_relative_path (const char * path, const char * ref_path)
1428 static char *pathbuf = NULL;
1429 static unsigned int pathbuf_len = 0;
1435 unsigned int dir_up = 0;
1436 unsigned int dir_down = 0;
1438 char * pwd = getpwd ();
1441 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1442 lpath = lrealpath (path);
1443 pathp = lpath == NULL ? path : lpath;
1445 rpath = lrealpath (ref_path);
1446 refp = rpath == NULL ? ref_path : rpath;
1448 /* Remove common leading path elements. */
1451 const char *e1 = pathp;
1452 const char *e2 = refp;
1454 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1456 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1458 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1459 || filename_ncmp (pathp, refp, e1 - pathp) != 0)
1465 len = strlen (pathp) + 1;
1466 /* For each leading path element in the reference path,
1467 insert "../" into the path. */
1468 for (; *refp; ++refp)
1469 if (IS_DIR_SEPARATOR (*refp))
1471 /* PR 12710: If the path element is "../" then instead of
1472 inserting "../" we need to insert the name of the directory
1473 at the current level. */
1474 if (refp > ref_path + 1
1482 /* If the lrealpath calls above succeeded then we should never
1483 see dir_up and dir_down both being non-zero. */
1489 down = pwd + strlen (pwd) - 1;
1491 while (dir_down && down > pwd)
1493 if (IS_DIR_SEPARATOR (*down))
1496 BFD_ASSERT (dir_down == 0);
1497 len += strlen (down) + 1;
1502 if (len > pathbuf_len)
1504 if (pathbuf != NULL)
1507 pathbuf = (char *) bfd_malloc (len);
1508 if (pathbuf == NULL)
1514 while (dir_up-- > 0)
1516 /* FIXME: Support Windows style path separators as well. */
1517 strcpy (newp, "../");
1522 sprintf (newp, "%s/%s", down, pathp);
1524 strcpy (newp, pathp);
1532 /* Build a BFD style extended name table. */
1535 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1537 bfd_size_type *tablen,
1540 *name = "ARFILENAMES/";
1541 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1544 /* Build an SVR4 style extended name table. */
1547 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1549 bfd_size_type *tablen,
1553 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1556 /* Follows archive_head and produces an extended name table if
1557 necessary. Returns (in tabloc) a pointer to an extended name
1558 table, and in tablen the length of the table. If it makes an entry
1559 it clobbers the filename so that the element may be written without
1560 further massage. Returns TRUE if it ran successfully, FALSE if
1561 something went wrong. A successful return may still involve a
1562 zero-length tablen! */
1565 _bfd_construct_extended_name_table (bfd *abfd,
1566 bfd_boolean trailing_slash,
1568 bfd_size_type *tablen)
1570 unsigned int maxname = ar_maxnamelen (abfd);
1571 bfd_size_type total_namelen = 0;
1574 const char *last_filename;
1578 last_filename = NULL;
1580 /* Figure out how long the table should be. */
1581 for (current = abfd->archive_head;
1583 current = current->archive_next)
1586 unsigned int thislen;
1588 if (bfd_is_thin_archive (abfd))
1590 const char *filename = current->filename;
1592 /* If the element being added is a member of another archive
1593 (i.e., we are flattening), use the containing archive's name. */
1594 if (current->my_archive
1595 && ! bfd_is_thin_archive (current->my_archive))
1596 filename = current->my_archive->filename;
1598 /* If the path is the same as the previous path seen,
1599 reuse it. This can happen when flattening a thin
1600 archive that contains other archives. */
1601 if (last_filename && filename_cmp (last_filename, filename) == 0)
1604 last_filename = filename;
1606 /* If the path is relative, adjust it relative to
1607 the containing archive. */
1608 if (! IS_ABSOLUTE_PATH (filename)
1609 && ! IS_ABSOLUTE_PATH (abfd->filename))
1610 normal = adjust_relative_path (filename, abfd->filename);
1614 /* In a thin archive, always store the full pathname
1615 in the extended name table. */
1616 total_namelen += strlen (normal) + 1;
1618 /* Leave room for trailing slash. */
1624 normal = normalize (current, current->filename);
1628 thislen = strlen (normal);
1630 if (thislen > maxname
1631 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1634 if (thislen > maxname)
1636 /* Add one to leave room for \n. */
1637 total_namelen += thislen + 1;
1640 /* Leave room for trailing slash. */
1646 struct ar_hdr *hdr = arch_hdr (current);
1647 if (filename_ncmp (normal, hdr->ar_name, thislen) != 0
1648 || (thislen < sizeof hdr->ar_name
1649 && hdr->ar_name[thislen] != ar_padchar (current)))
1651 /* Must have been using extended format even though it
1652 didn't need to. Fix it to use normal format. */
1653 memcpy (hdr->ar_name, normal, thislen);
1654 if (thislen < maxname
1655 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1656 hdr->ar_name[thislen] = ar_padchar (current);
1661 if (total_namelen == 0)
1664 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1665 if (*tabloc == NULL)
1668 *tablen = total_namelen;
1671 last_filename = NULL;
1674 for (current = abfd->archive_head;
1676 current = current->archive_next)
1679 unsigned int thislen;
1681 const char *filename = current->filename;
1683 if (bfd_is_thin_archive (abfd))
1685 /* If the element being added is a member of another archive
1686 (i.e., we are flattening), use the containing archive's name. */
1687 if (current->my_archive
1688 && ! bfd_is_thin_archive (current->my_archive))
1689 filename = current->my_archive->filename;
1690 /* If the path is the same as the previous path seen,
1691 reuse it. This can happen when flattening a thin
1692 archive that contains other archives.
1693 If the path is relative, adjust it relative to
1694 the containing archive. */
1695 if (last_filename && filename_cmp (last_filename, filename) == 0)
1696 normal = last_filename;
1697 else if (! IS_ABSOLUTE_PATH (filename)
1698 && ! IS_ABSOLUTE_PATH (abfd->filename))
1699 normal = adjust_relative_path (filename, abfd->filename);
1705 normal = normalize (current, filename);
1710 thislen = strlen (normal);
1711 if (thislen > maxname || bfd_is_thin_archive (abfd))
1713 /* Works for now; may need to be re-engineered if we
1714 encounter an oddball archive format and want to
1715 generalise this hack. */
1716 struct ar_hdr *hdr = arch_hdr (current);
1717 if (normal == last_filename)
1718 stroff = last_stroff;
1721 strcpy (strptr, normal);
1722 if (! trailing_slash)
1723 strptr[thislen] = ARFMAG[1];
1726 strptr[thislen] = '/';
1727 strptr[thislen + 1] = ARFMAG[1];
1729 stroff = strptr - *tabloc;
1730 last_stroff = stroff;
1732 hdr->ar_name[0] = ar_padchar (current);
1733 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1735 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1737 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1739 current->origin - sizeof (struct ar_hdr));
1742 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1743 if (normal != last_filename)
1745 strptr += thislen + 1;
1748 last_filename = filename;
1756 /* Do not construct an extended name table but transforms name field into
1757 its extended form. */
1760 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1762 bfd_size_type *tablen,
1765 unsigned int maxname = ar_maxnamelen (abfd);
1772 for (current = abfd->archive_head;
1774 current = current->archive_next)
1776 const char *normal = normalize (current, current->filename);
1783 for (len = 0; normal[len]; len++)
1784 if (normal[len] == ' ')
1787 if (len > maxname || has_space)
1789 struct ar_hdr *hdr = arch_hdr (current);
1791 len = (len + 3) & ~3;
1792 arch_eltdata (current)->extra_size = len;
1793 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1800 /* Write an archive header. */
1803 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1805 struct ar_hdr *hdr = arch_hdr (abfd);
1807 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1812 /* Write an archive header using BSD4.4 convention. */
1815 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1817 struct ar_hdr *hdr = arch_hdr (abfd);
1819 if (is_bsd44_extended_name (hdr->ar_name))
1821 /* This is a BSD 4.4 extended name. */
1822 const char *fullname = normalize (abfd, abfd->filename);
1823 unsigned int len = strlen (fullname);
1824 unsigned int padded_len = (len + 3) & ~3;
1826 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1828 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size),
1829 arch_eltdata (abfd)->parsed_size + padded_len))
1832 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1835 if (bfd_bwrite (fullname, len, archive) != len)
1840 static const char pad[3] = { 0, 0, 0 };
1842 len = 4 - (len & 3);
1843 if (bfd_bwrite (pad, len, archive) != len)
1849 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1855 /* A couple of functions for creating ar_hdrs. */
1857 #ifdef HPUX_LARGE_AR_IDS
1858 /* Function to encode large UID/GID values according to HP. */
1861 hpux_uid_gid_encode (char str[6], long int id)
1865 str[5] = '@' + (id & 3);
1868 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1869 str[cnt] = ' ' + (id & 0x3f);
1871 #endif /* HPUX_LARGE_AR_IDS */
1881 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1882 make one. The filename must refer to a filename in the filesystem.
1883 The filename field of the ar_hdr will NOT be initialized. If member
1884 is set, and it's an in-memory bfd, we fake it. */
1886 static struct areltdata *
1887 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1890 struct areltdata *ared;
1894 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1896 /* Assume we just "made" the member, and fake it. */
1897 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1898 time (&status.st_mtime);
1899 status.st_uid = getuid ();
1900 status.st_gid = getgid ();
1901 status.st_mode = 0644;
1902 status.st_size = bim->size;
1904 else if (stat (filename, &status) != 0)
1906 bfd_set_error (bfd_error_system_call);
1910 /* If the caller requested that the BFD generate deterministic output,
1911 fake values for modification time, UID, GID, and file mode. */
1912 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1914 status.st_mtime = 0;
1917 status.st_mode = 0644;
1920 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1921 ared = (struct areltdata *) bfd_zmalloc (amt);
1924 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1926 /* ar headers are space padded, not null padded! */
1927 memset (hdr, ' ', sizeof (struct ar_hdr));
1929 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1931 #ifdef HPUX_LARGE_AR_IDS
1932 /* HP has a very "special" way to handle UID/GID's with numeric values
1934 if (status.st_uid > 99999)
1935 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1938 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1940 #ifdef HPUX_LARGE_AR_IDS
1941 /* HP has a very "special" way to handle UID/GID's with numeric values
1943 if (status.st_gid > 99999)
1944 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1947 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1949 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1951 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size), status.st_size))
1956 memcpy (hdr->ar_fmag, ARFMAG, 2);
1957 ared->parsed_size = status.st_size;
1958 ared->arch_header = (char *) hdr;
1963 /* Analogous to stat call. */
1966 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1971 if (abfd->arelt_data == NULL)
1973 bfd_set_error (bfd_error_invalid_operation);
1977 hdr = arch_hdr (abfd);
1978 /* PR 17512: file: 3d9e9fe9. */
1982 #define foo(arelt, stelt, size) \
1983 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1984 if (aloser == hdr->arelt) \
1987 /* Some platforms support special notations for large IDs. */
1988 #ifdef HPUX_LARGE_AR_IDS
1989 # define foo2(arelt, stelt, size) \
1990 if (hdr->arelt[5] == ' ') \
1992 foo (arelt, stelt, size); \
1997 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1999 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
2002 buf->stelt += hdr->arelt[cnt] - ' '; \
2004 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
2007 buf->stelt += hdr->arelt[5] - '@'; \
2010 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
2013 foo (ar_date, st_mtime, 10);
2014 foo2 (ar_uid, st_uid, 10);
2015 foo2 (ar_gid, st_gid, 10);
2016 foo (ar_mode, st_mode, 8);
2018 buf->st_size = arch_eltdata (abfd)->parsed_size;
2024 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2026 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2027 Fortunately ic960 users will never use that option. Fixing this
2028 is very hard; fortunately I know how to do it and will do so once
2029 intel's release is out the door. */
2031 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2033 const char *filename;
2034 size_t maxlen = ar_maxnamelen (abfd);
2036 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
2038 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
2042 filename = normalize (abfd, pathname);
2043 if (filename == NULL)
2049 length = strlen (filename);
2051 if (length <= maxlen)
2052 memcpy (hdr->ar_name, filename, length);
2054 /* Add the padding character if there is room for it. */
2056 || (length == maxlen && length < sizeof hdr->ar_name))
2057 (hdr->ar_name)[length] = ar_padchar (abfd);
2061 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2063 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2065 const char *filename = lbasename (pathname);
2066 size_t maxlen = ar_maxnamelen (abfd);
2068 length = strlen (filename);
2070 if (length <= maxlen)
2071 memcpy (hdr->ar_name, filename, length);
2074 /* pathname: meet procrustes */
2075 memcpy (hdr->ar_name, filename, maxlen);
2079 if (length < maxlen)
2080 (hdr->ar_name)[length] = ar_padchar (abfd);
2083 /* Store name into ar header. Truncates the name to fit.
2084 1> strip pathname to be just the basename.
2085 2> if it's short enuf to fit, stuff it in.
2086 3> If it doesn't end with .o, truncate it to fit
2087 4> truncate it before the .o, append .o, stuff THAT in. */
2089 /* This is what gnu ar does. It's better but incompatible with the
2093 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2095 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2097 const char *filename = lbasename (pathname);
2098 size_t maxlen = ar_maxnamelen (abfd);
2100 length = strlen (filename);
2102 if (length <= maxlen)
2103 memcpy (hdr->ar_name, filename, length);
2106 /* pathname: meet procrustes. */
2107 memcpy (hdr->ar_name, filename, maxlen);
2108 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
2110 hdr->ar_name[maxlen - 2] = '.';
2111 hdr->ar_name[maxlen - 1] = 'o';
2117 (hdr->ar_name)[length] = ar_padchar (abfd);
2120 /* The BFD is open for write and has its format set to bfd_archive. */
2123 _bfd_write_archive_contents (bfd *arch)
2126 char *etable = NULL;
2127 bfd_size_type elength = 0;
2128 const char *ename = NULL;
2129 bfd_boolean makemap = bfd_has_map (arch);
2130 /* If no .o's, don't bother to make a map. */
2131 bfd_boolean hasobjects = FALSE;
2132 bfd_size_type wrote;
2136 /* Verify the viability of all entries; if any of them live in the
2137 filesystem (as opposed to living in an archive open for input)
2138 then construct a fresh ar_hdr for them. */
2139 for (current = arch->archive_head;
2141 current = current->archive_next)
2143 /* This check is checking the bfds for the objects we're reading
2144 from (which are usually either an object file or archive on
2145 disk), not the archive entries we're writing to. We don't
2146 actually create bfds for the archive members, we just copy
2147 them byte-wise when we write out the archive. */
2148 if (bfd_write_p (current))
2150 bfd_set_error (bfd_error_invalid_operation);
2153 if (!current->arelt_data)
2155 current->arelt_data =
2156 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2157 if (!current->arelt_data)
2160 /* Put in the file name. */
2161 BFD_SEND (arch, _bfd_truncate_arname,
2162 (arch, current->filename, (char *) arch_hdr (current)));
2165 if (makemap && ! hasobjects)
2166 { /* Don't bother if we won't make a map! */
2167 if ((bfd_check_format (current, bfd_object)))
2172 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2173 (arch, &etable, &elength, &ename)))
2176 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2179 if (bfd_is_thin_archive (arch))
2181 wrote = bfd_bwrite (armag, SARMAG, arch);
2182 if (wrote != SARMAG)
2185 if (makemap && hasobjects)
2187 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2195 memset (&hdr, ' ', sizeof (struct ar_hdr));
2196 memcpy (hdr.ar_name, ename, strlen (ename));
2197 /* Round size up to even number in archive header. */
2198 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size),
2199 (elength + 1) & ~(bfd_size_type) 1))
2201 memcpy (hdr.ar_fmag, ARFMAG, 2);
2202 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2203 != sizeof (struct ar_hdr))
2204 || bfd_bwrite (etable, elength, arch) != elength)
2206 if ((elength % 2) == 1)
2208 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2213 for (current = arch->archive_head;
2215 current = current->archive_next)
2217 char buffer[DEFAULT_BUFFERSIZE];
2218 bfd_size_type remaining = arelt_size (current);
2220 /* Write ar header. */
2221 if (!_bfd_write_ar_hdr (arch, current))
2223 if (bfd_is_thin_archive (arch))
2225 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2230 unsigned int amt = DEFAULT_BUFFERSIZE;
2232 if (amt > remaining)
2235 if (bfd_bread (buffer, amt, current) != amt)
2237 if (bfd_get_error () != bfd_error_system_call)
2238 bfd_set_error (bfd_error_file_truncated);
2241 if (bfd_bwrite (buffer, amt, arch) != amt)
2246 if ((arelt_size (current) % 2) == 1)
2248 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2253 if (makemap && hasobjects)
2255 /* Verify the timestamp in the archive file. If it would not be
2256 accepted by the linker, rewrite it until it would be. If
2257 anything odd happens, break out and just return. (The
2258 Berkeley linker checks the timestamp and refuses to read the
2259 table-of-contents if it is >60 seconds less than the file's
2260 modified-time. That painful hack requires this painful hack. */
2264 if (bfd_update_armap_timestamp (arch))
2266 (*_bfd_error_handler)
2267 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2269 while (++tries < 6);
2275 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2279 /* Note that the namidx for the first symbol is 0. */
2282 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2284 char *first_name = NULL;
2286 file_ptr elt_no = 0;
2287 struct orl *map = NULL;
2288 unsigned int orl_max = 1024; /* Fine initial default. */
2289 unsigned int orl_count = 0;
2291 asymbol **syms = NULL;
2296 /* Dunno if this is the best place for this info... */
2298 elength += sizeof (struct ar_hdr);
2299 elength += elength % 2;
2301 amt = orl_max * sizeof (struct orl);
2302 map = (struct orl *) bfd_malloc (amt);
2306 /* We put the symbol names on the arch objalloc, and then discard
2308 first_name = (char *) bfd_alloc (arch, 1);
2309 if (first_name == NULL)
2312 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2313 while (arch->archive_head
2314 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2315 arch->archive_head = arch->archive_head->archive_next;
2317 /* Map over each element. */
2318 for (current = arch->archive_head;
2320 current = current->archive_next, elt_no++)
2322 if (bfd_check_format (current, bfd_object)
2323 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2329 storage = bfd_get_symtab_upper_bound (current);
2335 if (storage > syms_max)
2340 syms = (asymbol **) bfd_malloc (syms_max);
2344 symcount = bfd_canonicalize_symtab (current, syms);
2348 /* Now map over all the symbols, picking out the ones we
2350 for (src_count = 0; src_count < symcount; src_count++)
2352 flagword flags = (syms[src_count])->flags;
2353 asection *sec = syms[src_count]->section;
2355 if (((flags & (BSF_GLOBAL
2358 | BSF_GNU_UNIQUE)) != 0
2359 || bfd_is_com_section (sec))
2360 && ! bfd_is_und_section (sec))
2362 bfd_size_type namelen;
2363 struct orl *new_map;
2365 /* This symbol will go into the archive header. */
2366 if (orl_count == orl_max)
2369 amt = orl_max * sizeof (struct orl);
2370 new_map = (struct orl *) bfd_realloc (map, amt);
2371 if (new_map == NULL)
2377 if (strcmp (syms[src_count]->name, "__gnu_lto_slim") == 0)
2378 (*_bfd_error_handler)
2379 (_("%s: plugin needed to handle lto object"),
2380 bfd_get_filename (current));
2381 namelen = strlen (syms[src_count]->name);
2382 amt = sizeof (char *);
2383 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2384 if (map[orl_count].name == NULL)
2386 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2388 if (*(map[orl_count].name) == NULL)
2390 strcpy (*(map[orl_count].name), syms[src_count]->name);
2391 map[orl_count].u.abfd = current;
2392 map[orl_count].namidx = stridx;
2394 stridx += namelen + 1;
2400 /* Now ask the BFD to free up any cached information, so we
2401 don't fill all of memory with symbol tables. */
2402 if (! bfd_free_cached_info (current))
2407 /* OK, now we have collected all the data, let's write them out. */
2408 ret = BFD_SEND (arch, write_armap,
2409 (arch, elength, map, orl_count, stridx));
2415 if (first_name != NULL)
2416 bfd_release (arch, first_name);
2425 if (first_name != NULL)
2426 bfd_release (arch, first_name);
2432 bsd_write_armap (bfd *arch,
2433 unsigned int elength,
2435 unsigned int orl_count,
2438 int padit = stridx & 1;
2439 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2440 unsigned int stringsize = stridx + padit;
2441 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2442 unsigned int mapsize = ranlibsize + stringsize + 8;
2444 bfd *current = arch->archive_head;
2445 bfd *last_elt = current; /* Last element arch seen. */
2451 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2453 /* If deterministic, we use 0 as the timestamp in the map.
2454 Some linkers may require that the archive filesystem modification
2455 time is less than (or near to) the archive map timestamp. Those
2456 linkers should not be used with deterministic mode. (GNU ld and
2457 Gold do not have this restriction.) */
2458 bfd_ardata (arch)->armap_timestamp = 0;
2461 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2463 struct stat statbuf;
2465 if (stat (arch->filename, &statbuf) == 0)
2466 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2467 + ARMAP_TIME_OFFSET);
2472 memset (&hdr, ' ', sizeof (struct ar_hdr));
2473 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2474 bfd_ardata (arch)->armap_datepos = (SARMAG
2475 + offsetof (struct ar_hdr, ar_date[0]));
2476 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2477 bfd_ardata (arch)->armap_timestamp);
2478 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2479 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2480 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2482 memcpy (hdr.ar_fmag, ARFMAG, 2);
2483 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2484 != sizeof (struct ar_hdr))
2486 H_PUT_32 (arch, ranlibsize, temp);
2487 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2490 for (count = 0; count < orl_count; count++)
2492 unsigned int offset;
2493 bfd_byte buf[BSD_SYMDEF_SIZE];
2495 if (map[count].u.abfd != last_elt)
2499 struct areltdata *ared = arch_eltdata (current);
2501 firstreal += (ared->parsed_size + ared->extra_size
2502 + sizeof (struct ar_hdr));
2503 firstreal += firstreal % 2;
2504 current = current->archive_next;
2506 while (current != map[count].u.abfd);
2509 /* The archive file format only has 4 bytes to store the offset
2510 of the member. Check to make sure that firstreal has not grown
2512 offset = (unsigned int) firstreal;
2513 if (firstreal != (file_ptr) offset)
2515 bfd_set_error (bfd_error_file_truncated);
2520 H_PUT_32 (arch, map[count].namidx, buf);
2521 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2522 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2527 /* Now write the strings themselves. */
2528 H_PUT_32 (arch, stringsize, temp);
2529 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2531 for (count = 0; count < orl_count; count++)
2533 size_t len = strlen (*map[count].name) + 1;
2535 if (bfd_bwrite (*map[count].name, len, arch) != len)
2539 /* The spec sez this should be a newline. But in order to be
2540 bug-compatible for sun's ar we use a null. */
2543 if (bfd_bwrite ("", 1, arch) != 1)
2550 /* At the end of archive file handling, update the timestamp in the
2551 file, so the linker will accept it.
2553 Return TRUE if the timestamp was OK, or an unusual problem happened.
2554 Return FALSE if we updated the timestamp. */
2557 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2559 struct stat archstat;
2562 /* If creating deterministic archives, just leave the timestamp as-is. */
2563 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2566 /* Flush writes, get last-write timestamp from file, and compare it
2567 to the timestamp IN the file. */
2569 if (bfd_stat (arch, &archstat) == -1)
2571 bfd_perror (_("Reading archive file mod timestamp"));
2573 /* Can't read mod time for some reason. */
2576 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2577 /* OK by the linker's rules. */
2580 /* Update the timestamp. */
2581 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2583 /* Prepare an ASCII version suitable for writing. */
2584 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2585 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2586 bfd_ardata (arch)->armap_timestamp);
2588 /* Write it into the file. */
2589 bfd_ardata (arch)->armap_datepos = (SARMAG
2590 + offsetof (struct ar_hdr, ar_date[0]));
2591 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2592 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2593 != sizeof (hdr.ar_date)))
2595 bfd_perror (_("Writing updated armap timestamp"));
2597 /* Some error while writing. */
2601 /* We updated the timestamp successfully. */
2605 /* A coff armap looks like :
2607 struct ar_hdr with name = '/'
2609 offset of file for symbol 0
2610 offset of file for symbol 1
2612 offset of file for symbol n-1
2619 coff_write_armap (bfd *arch,
2620 unsigned int elength,
2622 unsigned int symbol_count,
2625 /* The size of the ranlib is the number of exported symbols in the
2626 archive * the number of bytes in an int, + an int for the count. */
2627 unsigned int ranlibsize = (symbol_count * 4) + 4;
2628 unsigned int stringsize = stridx;
2629 unsigned int mapsize = stringsize + ranlibsize;
2630 file_ptr archive_member_file_ptr;
2631 bfd *current = arch->archive_head;
2634 int padit = mapsize & 1;
2639 /* Work out where the first object file will go in the archive. */
2640 archive_member_file_ptr = (mapsize
2642 + sizeof (struct ar_hdr)
2645 memset (&hdr, ' ', sizeof (struct ar_hdr));
2646 hdr.ar_name[0] = '/';
2647 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2649 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2650 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2651 ? time (NULL) : 0));
2652 /* This, at least, is what Intel coff sets the values to. */
2653 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2654 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2655 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2656 memcpy (hdr.ar_fmag, ARFMAG, 2);
2658 /* Write the ar header for this item and the number of symbols. */
2659 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2660 != sizeof (struct ar_hdr))
2663 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2666 /* Two passes, first write the file offsets for each symbol -
2667 remembering that each offset is on a two byte boundary. */
2669 /* Write out the file offset for the file associated with each
2670 symbol, and remember to keep the offsets padded out. */
2672 current = arch->archive_head;
2674 while (current != NULL && count < symbol_count)
2676 /* For each symbol which is used defined in this object, write
2677 out the object file's address in the archive. */
2679 while (count < symbol_count && map[count].u.abfd == current)
2681 unsigned int offset = (unsigned int) archive_member_file_ptr;
2683 /* Catch an attempt to grow an archive past its 4Gb limit. */
2684 if (archive_member_file_ptr != (file_ptr) offset)
2686 bfd_set_error (bfd_error_file_truncated);
2689 if (!bfd_write_bigendian_4byte_int (arch, offset))
2693 archive_member_file_ptr += sizeof (struct ar_hdr);
2694 if (! bfd_is_thin_archive (arch))
2696 /* Add size of this archive entry. */
2697 archive_member_file_ptr += arelt_size (current);
2698 /* Remember about the even alignment. */
2699 archive_member_file_ptr += archive_member_file_ptr % 2;
2701 current = current->archive_next;
2704 /* Now write the strings themselves. */
2705 for (count = 0; count < symbol_count; count++)
2707 size_t len = strlen (*map[count].name) + 1;
2709 if (bfd_bwrite (*map[count].name, len, arch) != len)
2713 /* The spec sez this should be a newline. But in order to be
2714 bug-compatible for arc960 we use a null. */
2717 if (bfd_bwrite ("", 1, arch) != 1)
2725 archive_close_worker (void **slot, void *inf ATTRIBUTE_UNUSED)
2727 struct ar_cache *ent = (struct ar_cache *) *slot;
2729 bfd_close_all_done (ent->arbfd);
2734 _bfd_archive_close_and_cleanup (bfd *abfd)
2736 if (bfd_read_p (abfd) && abfd->format == bfd_archive)
2742 /* Close nested archives (if this bfd is a thin archive). */
2743 for (nbfd = abfd->nested_archives; nbfd; nbfd = next)
2745 next = nbfd->archive_next;
2749 htab = bfd_ardata (abfd)->cache;
2752 htab_traverse_noresize (htab, archive_close_worker, NULL);
2754 bfd_ardata (abfd)->cache = NULL;
2757 if (arch_eltdata (abfd) != NULL)
2759 struct areltdata *ared = arch_eltdata (abfd);
2760 htab_t htab = (htab_t) ared->parent_cache;
2764 struct ar_cache ent;
2767 ent.ptr = ared->key;
2768 slot = htab_find_slot (htab, &ent, NO_INSERT);
2771 BFD_ASSERT (((struct ar_cache *) *slot)->arbfd == abfd);
2772 htab_clear_slot (htab, slot);
2776 if (abfd->is_linker_output)
2777 (*abfd->link.hash->hash_table_free) (abfd);