1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2015 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);
322 hash_file_ptr (const void * p)
324 return (hashval_t) (((struct ar_cache *) p)->ptr);
327 /* Returns non-zero if P1 and P2 are equal. */
330 eq_file_ptr (const void * p1, const void * p2)
332 struct ar_cache *arc1 = (struct ar_cache *) p1;
333 struct ar_cache *arc2 = (struct ar_cache *) p2;
334 return arc1->ptr == arc2->ptr;
337 /* The calloc function doesn't always take size_t (e.g. on VMS)
338 so wrap it to avoid a compile time warning. */
341 _bfd_calloc_wrapper (size_t a, size_t b)
343 return calloc (a, b);
346 /* Kind of stupid to call cons for each one, but we don't do too many. */
349 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
351 struct ar_cache *cache;
352 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
354 /* If the hash table hasn't been created, create it. */
355 if (hash_table == NULL)
357 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
358 NULL, _bfd_calloc_wrapper, free);
359 if (hash_table == NULL)
361 bfd_ardata (arch_bfd)->cache = hash_table;
364 /* Insert new_elt into the hash table by filepos. */
365 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
366 cache->ptr = filepos;
367 cache->arbfd = new_elt;
368 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
370 /* Provide a means of accessing this from child. */
371 arch_eltdata (new_elt)->parent_cache = hash_table;
372 arch_eltdata (new_elt)->key = filepos;
378 _bfd_find_nested_archive (bfd *arch_bfd, const char *filename)
383 /* PR 15140: Don't allow a nested archive pointing to itself. */
384 if (filename_cmp (filename, arch_bfd->filename) == 0)
386 bfd_set_error (bfd_error_malformed_archive);
390 for (abfd = arch_bfd->nested_archives;
392 abfd = abfd->archive_next)
394 if (filename_cmp (filename, abfd->filename) == 0)
398 if (!arch_bfd->target_defaulted)
399 target = arch_bfd->xvec->name;
400 abfd = bfd_openr (filename, target);
403 abfd->archive_next = arch_bfd->nested_archives;
404 arch_bfd->nested_archives = abfd;
409 /* The name begins with space. Hence the rest of the name is an index into
413 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
415 unsigned long table_index = 0;
418 /* Should extract string so that I can guarantee not to overflow into
419 the next region, but I'm too lazy. */
421 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
422 table_index = strtol (name + 1, (char **) &endp, 10);
423 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
425 bfd_set_error (bfd_error_malformed_archive);
428 /* In a thin archive, a member of an archive-within-an-archive
429 will have the offset in the inner archive encoded here. */
430 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
432 file_ptr origin = strtol (endp + 1, NULL, 10);
436 bfd_set_error (bfd_error_malformed_archive);
444 return bfd_ardata (arch)->extended_names + table_index;
447 /* This functions reads an arch header and returns an areltdata pointer, or
450 Presumes the file pointer is already in the right place (ie pointing
451 to the ar_hdr in the file). Moves the file pointer; on success it
452 should be pointing to the front of the file contents; on failure it
453 could have been moved arbitrarily. */
456 _bfd_generic_read_ar_hdr (bfd *abfd)
458 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
461 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
462 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
465 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
468 char *hdrp = (char *) &hdr;
469 bfd_size_type parsed_size;
470 struct areltdata *ared;
471 char *filename = NULL;
472 bfd_size_type namelen = 0;
473 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
476 unsigned int extra_size = 0;
480 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
482 if (bfd_get_error () != bfd_error_system_call)
483 bfd_set_error (bfd_error_no_more_archived_files);
486 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
488 || strncmp (hdr.ar_fmag, mag, 2) != 0))
490 bfd_set_error (bfd_error_malformed_archive);
495 fmag_save = hdr.ar_fmag[0];
497 scan = sscanf (hdr.ar_size, "%" BFD_VMA_FMT "u", &parsed_size);
498 hdr.ar_fmag[0] = fmag_save;
501 bfd_set_error (bfd_error_malformed_archive);
505 /* Extract the filename from the archive - there are two ways to
506 specify an extended name table, either the first char of the
507 name is a space, or it's a slash. */
508 if ((hdr.ar_name[0] == '/'
509 || (hdr.ar_name[0] == ' '
510 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
511 && bfd_ardata (abfd)->extended_names != NULL)
513 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
514 if (filename == NULL)
517 /* BSD4.4-style long filename. */
518 else if (is_bsd44_extended_name (hdr.ar_name))
520 /* BSD-4.4 extended name */
521 namelen = atoi (&hdr.ar_name[3]);
522 allocsize += namelen + 1;
523 parsed_size -= namelen;
524 extra_size = namelen;
526 allocptr = (char *) bfd_zmalloc (allocsize);
527 if (allocptr == NULL)
530 + sizeof (struct areltdata)
531 + sizeof (struct ar_hdr));
532 if (bfd_bread (filename, namelen, abfd) != namelen)
535 if (bfd_get_error () != bfd_error_system_call)
536 bfd_set_error (bfd_error_no_more_archived_files);
539 filename[namelen] = '\0';
543 /* We judge the end of the name by looking for '/' or ' '.
544 Note: The SYSV format (terminated by '/') allows embedded
545 spaces, so only look for ' ' if we don't find '/'. */
548 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
551 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
553 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
557 namelen = e - hdr.ar_name;
560 /* If we didn't find a termination character, then the name
561 must be the entire field. */
562 namelen = ar_maxnamelen (abfd);
565 allocsize += namelen + 1;
570 allocptr = (char *) bfd_zmalloc (allocsize);
571 if (allocptr == NULL)
575 ared = (struct areltdata *) allocptr;
577 ared->arch_header = allocptr + sizeof (struct areltdata);
578 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
579 ared->parsed_size = parsed_size;
580 ared->extra_size = extra_size;
581 ared->origin = origin;
583 if (filename != NULL)
584 ared->filename = filename;
587 ared->filename = allocptr + (sizeof (struct areltdata) +
588 sizeof (struct ar_hdr));
590 memcpy (ared->filename, hdr.ar_name, namelen);
591 ared->filename[namelen] = '\0';
597 /* Append the relative pathname for a member of the thin archive
598 to the pathname of the directory containing the archive. */
601 _bfd_append_relative_path (bfd *arch, char *elt_name)
603 const char *arch_name = arch->filename;
604 const char *base_name = lbasename (arch_name);
608 if (base_name == arch_name)
611 prefix_len = base_name - arch_name;
612 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
613 if (filename == NULL)
616 strncpy (filename, arch_name, prefix_len);
617 strcpy (filename + prefix_len, elt_name);
621 /* This is an internal function; it's mainly used when indexing
622 through the archive symbol table, but also used to get the next
623 element, since it handles the bookkeeping so nicely for us. */
626 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
628 struct areltdata *new_areldata;
632 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
636 if (0 > bfd_seek (archive, filepos, SEEK_SET))
639 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
642 filename = new_areldata->filename;
644 if (bfd_is_thin_archive (archive))
648 /* This is a proxy entry for an external file. */
649 if (! IS_ABSOLUTE_PATH (filename))
651 filename = _bfd_append_relative_path (archive, filename);
652 if (filename == NULL)
659 if (new_areldata->origin > 0)
661 /* This proxy entry refers to an element of a nested archive.
662 Locate the member of that archive and return a bfd for it. */
663 bfd *ext_arch = _bfd_find_nested_archive (archive, filename);
666 || ! bfd_check_format (ext_arch, bfd_archive))
671 n_nfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
677 n_nfd->proxy_origin = bfd_tell (archive);
680 /* It's not an element of a nested archive;
681 open the external file as a bfd. */
683 if (!archive->target_defaulted)
684 target = archive->xvec->name;
685 n_nfd = bfd_openr (filename, target);
687 bfd_set_error (bfd_error_malformed_archive);
691 n_nfd = _bfd_create_empty_archive_element_shell (archive);
700 n_nfd->proxy_origin = bfd_tell (archive);
702 if (bfd_is_thin_archive (archive))
708 n_nfd->origin = n_nfd->proxy_origin;
709 n_nfd->filename = xstrdup (filename);
712 n_nfd->arelt_data = new_areldata;
714 /* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
715 n_nfd->flags |= archive->flags & (BFD_COMPRESS | BFD_DECOMPRESS);
717 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
721 n_nfd->arelt_data = NULL;
725 /* Return the BFD which is referenced by the symbol in ABFD indexed by
726 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
729 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
733 entry = bfd_ardata (abfd)->symdefs + sym_index;
734 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
739 bfd_openr_next_archived_file
742 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
745 Provided a BFD, @var{archive}, containing an archive and NULL, open
746 an input BFD on the first contained element and returns that.
747 Subsequent calls should pass
748 the archive and the previous return value to return a created
749 BFD to the next contained element. NULL is returned when there
754 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
756 if ((bfd_get_format (archive) != bfd_archive)
757 || (archive->direction == write_direction))
759 bfd_set_error (bfd_error_invalid_operation);
763 return BFD_SEND (archive,
764 openr_next_archived_file, (archive, last_file));
768 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
773 filestart = bfd_ardata (archive)->first_file_filepos;
776 bfd_size_type size = arelt_size (last_file);
778 filestart = last_file->proxy_origin;
779 if (! bfd_is_thin_archive (archive))
781 /* Pad to an even boundary...
782 Note that last_file->origin can be odd in the case of
783 BSD-4.4-style element with a long odd size. */
784 filestart += filestart % 2;
787 return _bfd_get_elt_at_filepos (archive, filestart);
791 bfd_generic_archive_p (bfd *abfd)
793 struct artdata *tdata_hold;
794 char armag[SARMAG + 1];
797 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
799 if (bfd_get_error () != bfd_error_system_call)
800 bfd_set_error (bfd_error_wrong_format);
804 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
806 if (strncmp (armag, ARMAG, SARMAG) != 0
807 && strncmp (armag, ARMAGB, SARMAG) != 0
808 && ! bfd_is_thin_archive (abfd))
811 tdata_hold = bfd_ardata (abfd);
813 amt = sizeof (struct artdata);
814 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
815 if (bfd_ardata (abfd) == NULL)
817 bfd_ardata (abfd) = tdata_hold;
821 bfd_ardata (abfd)->first_file_filepos = SARMAG;
822 /* Cleared by bfd_zalloc above.
823 bfd_ardata (abfd)->cache = NULL;
824 bfd_ardata (abfd)->archive_head = NULL;
825 bfd_ardata (abfd)->symdefs = NULL;
826 bfd_ardata (abfd)->extended_names = NULL;
827 bfd_ardata (abfd)->extended_names_size = 0;
828 bfd_ardata (abfd)->tdata = NULL; */
830 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
831 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
833 if (bfd_get_error () != bfd_error_system_call)
834 bfd_set_error (bfd_error_wrong_format);
835 bfd_release (abfd, bfd_ardata (abfd));
836 bfd_ardata (abfd) = tdata_hold;
840 if (abfd->target_defaulted && bfd_has_map (abfd))
844 /* This archive has a map, so we may presume that the contents
845 are object files. Make sure that if the first file in the
846 archive can be recognized as an object file, it is for this
847 target. If not, assume that this is the wrong format. If
848 the first file is not an object file, somebody is doing
849 something weird, and we permit it so that ar -t will work.
851 This is done because any normal format will recognize any
852 normal archive, regardless of the format of the object files.
853 We do accept an empty archive. */
855 first = bfd_openr_next_archived_file (abfd, NULL);
858 first->target_defaulted = FALSE;
859 if (bfd_check_format (first, bfd_object)
860 && first->xvec != abfd->xvec)
861 bfd_set_error (bfd_error_wrong_object_format);
862 /* And we ought to close `first' here too. */
869 /* Some constants for a 32 bit BSD archive structure. We do not
870 support 64 bit archives presently; so far as I know, none actually
871 exist. Supporting them would require changing these constants, and
872 changing some H_GET_32 to H_GET_64. */
874 /* The size of an external symdef structure. */
875 #define BSD_SYMDEF_SIZE 8
877 /* The offset from the start of a symdef structure to the file offset. */
878 #define BSD_SYMDEF_OFFSET_SIZE 4
880 /* The size of the symdef count. */
881 #define BSD_SYMDEF_COUNT_SIZE 4
883 /* The size of the string count. */
884 #define BSD_STRING_COUNT_SIZE 4
886 /* Read a BSD-style archive symbol table. Returns FALSE on error,
890 do_slurp_bsd_armap (bfd *abfd)
892 struct areltdata *mapdata;
893 unsigned int counter;
894 bfd_byte *raw_armap, *rbase;
895 struct artdata *ardata = bfd_ardata (abfd);
897 bfd_size_type parsed_size, amt;
900 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
903 parsed_size = mapdata->parsed_size;
905 /* PR 17512: file: 883ff754. */
906 /* PR 17512: file: 0458885f. */
910 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
911 if (raw_armap == NULL)
914 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
916 if (bfd_get_error () != bfd_error_system_call)
917 bfd_set_error (bfd_error_malformed_archive);
919 bfd_release (abfd, raw_armap);
923 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. */
1981 #define foo(arelt, stelt, size) \
1982 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1983 if (aloser == hdr->arelt) \
1986 /* Some platforms support special notations for large IDs. */
1987 #ifdef HPUX_LARGE_AR_IDS
1988 # define foo2(arelt, stelt, size) \
1989 if (hdr->arelt[5] == ' ') \
1991 foo (arelt, stelt, size); \
1996 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1998 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
2001 buf->stelt += hdr->arelt[cnt] - ' '; \
2003 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
2006 buf->stelt += hdr->arelt[5] - '@'; \
2009 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
2012 foo (ar_date, st_mtime, 10);
2013 foo2 (ar_uid, st_uid, 10);
2014 foo2 (ar_gid, st_gid, 10);
2015 foo (ar_mode, st_mode, 8);
2017 buf->st_size = arch_eltdata (abfd)->parsed_size;
2023 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2025 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2026 Fortunately ic960 users will never use that option. Fixing this
2027 is very hard; fortunately I know how to do it and will do so once
2028 intel's release is out the door. */
2030 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2032 const char *filename;
2033 size_t maxlen = ar_maxnamelen (abfd);
2035 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
2037 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
2041 filename = normalize (abfd, pathname);
2042 if (filename == NULL)
2048 length = strlen (filename);
2050 if (length <= maxlen)
2051 memcpy (hdr->ar_name, filename, length);
2053 /* Add the padding character if there is room for it. */
2055 || (length == maxlen && length < sizeof hdr->ar_name))
2056 (hdr->ar_name)[length] = ar_padchar (abfd);
2060 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2062 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2064 const char *filename = lbasename (pathname);
2065 size_t maxlen = ar_maxnamelen (abfd);
2067 length = strlen (filename);
2069 if (length <= maxlen)
2070 memcpy (hdr->ar_name, filename, length);
2073 /* pathname: meet procrustes */
2074 memcpy (hdr->ar_name, filename, maxlen);
2078 if (length < maxlen)
2079 (hdr->ar_name)[length] = ar_padchar (abfd);
2082 /* Store name into ar header. Truncates the name to fit.
2083 1> strip pathname to be just the basename.
2084 2> if it's short enuf to fit, stuff it in.
2085 3> If it doesn't end with .o, truncate it to fit
2086 4> truncate it before the .o, append .o, stuff THAT in. */
2088 /* This is what gnu ar does. It's better but incompatible with the
2092 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2094 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2096 const char *filename = lbasename (pathname);
2097 size_t maxlen = ar_maxnamelen (abfd);
2099 length = strlen (filename);
2101 if (length <= maxlen)
2102 memcpy (hdr->ar_name, filename, length);
2105 /* pathname: meet procrustes. */
2106 memcpy (hdr->ar_name, filename, maxlen);
2107 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
2109 hdr->ar_name[maxlen - 2] = '.';
2110 hdr->ar_name[maxlen - 1] = 'o';
2116 (hdr->ar_name)[length] = ar_padchar (abfd);
2119 /* The BFD is open for write and has its format set to bfd_archive. */
2122 _bfd_write_archive_contents (bfd *arch)
2125 char *etable = NULL;
2126 bfd_size_type elength = 0;
2127 const char *ename = NULL;
2128 bfd_boolean makemap = bfd_has_map (arch);
2129 /* If no .o's, don't bother to make a map. */
2130 bfd_boolean hasobjects = FALSE;
2131 bfd_size_type wrote;
2135 /* Verify the viability of all entries; if any of them live in the
2136 filesystem (as opposed to living in an archive open for input)
2137 then construct a fresh ar_hdr for them. */
2138 for (current = arch->archive_head;
2140 current = current->archive_next)
2142 /* This check is checking the bfds for the objects we're reading
2143 from (which are usually either an object file or archive on
2144 disk), not the archive entries we're writing to. We don't
2145 actually create bfds for the archive members, we just copy
2146 them byte-wise when we write out the archive. */
2147 if (bfd_write_p (current))
2149 bfd_set_error (bfd_error_invalid_operation);
2152 if (!current->arelt_data)
2154 current->arelt_data =
2155 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2156 if (!current->arelt_data)
2159 /* Put in the file name. */
2160 BFD_SEND (arch, _bfd_truncate_arname,
2161 (arch, current->filename, (char *) arch_hdr (current)));
2164 if (makemap && ! hasobjects)
2165 { /* Don't bother if we won't make a map! */
2166 if ((bfd_check_format (current, bfd_object)))
2171 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2172 (arch, &etable, &elength, &ename)))
2175 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2178 if (bfd_is_thin_archive (arch))
2180 wrote = bfd_bwrite (armag, SARMAG, arch);
2181 if (wrote != SARMAG)
2184 if (makemap && hasobjects)
2186 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2194 memset (&hdr, ' ', sizeof (struct ar_hdr));
2195 memcpy (hdr.ar_name, ename, strlen (ename));
2196 /* Round size up to even number in archive header. */
2197 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size),
2198 (elength + 1) & ~(bfd_size_type) 1))
2200 memcpy (hdr.ar_fmag, ARFMAG, 2);
2201 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2202 != sizeof (struct ar_hdr))
2203 || bfd_bwrite (etable, elength, arch) != elength)
2205 if ((elength % 2) == 1)
2207 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2212 for (current = arch->archive_head;
2214 current = current->archive_next)
2216 char buffer[DEFAULT_BUFFERSIZE];
2217 bfd_size_type remaining = arelt_size (current);
2219 /* Write ar header. */
2220 if (!_bfd_write_ar_hdr (arch, current))
2222 if (bfd_is_thin_archive (arch))
2224 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2229 unsigned int amt = DEFAULT_BUFFERSIZE;
2231 if (amt > remaining)
2234 if (bfd_bread (buffer, amt, current) != amt)
2236 if (bfd_get_error () != bfd_error_system_call)
2237 bfd_set_error (bfd_error_file_truncated);
2240 if (bfd_bwrite (buffer, amt, arch) != amt)
2245 if ((arelt_size (current) % 2) == 1)
2247 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2252 if (makemap && hasobjects)
2254 /* Verify the timestamp in the archive file. If it would not be
2255 accepted by the linker, rewrite it until it would be. If
2256 anything odd happens, break out and just return. (The
2257 Berkeley linker checks the timestamp and refuses to read the
2258 table-of-contents if it is >60 seconds less than the file's
2259 modified-time. That painful hack requires this painful hack. */
2263 if (bfd_update_armap_timestamp (arch))
2265 (*_bfd_error_handler)
2266 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2268 while (++tries < 6);
2274 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2278 /* Note that the namidx for the first symbol is 0. */
2281 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2283 char *first_name = NULL;
2285 file_ptr elt_no = 0;
2286 struct orl *map = NULL;
2287 unsigned int orl_max = 1024; /* Fine initial default. */
2288 unsigned int orl_count = 0;
2290 asymbol **syms = NULL;
2295 /* Dunno if this is the best place for this info... */
2297 elength += sizeof (struct ar_hdr);
2298 elength += elength % 2;
2300 amt = orl_max * sizeof (struct orl);
2301 map = (struct orl *) bfd_malloc (amt);
2305 /* We put the symbol names on the arch objalloc, and then discard
2307 first_name = (char *) bfd_alloc (arch, 1);
2308 if (first_name == NULL)
2311 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2312 while (arch->archive_head
2313 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2314 arch->archive_head = arch->archive_head->archive_next;
2316 /* Map over each element. */
2317 for (current = arch->archive_head;
2319 current = current->archive_next, elt_no++)
2321 if (bfd_check_format (current, bfd_object)
2322 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2328 storage = bfd_get_symtab_upper_bound (current);
2334 if (storage > syms_max)
2339 syms = (asymbol **) bfd_malloc (syms_max);
2343 symcount = bfd_canonicalize_symtab (current, syms);
2347 /* Now map over all the symbols, picking out the ones we
2349 for (src_count = 0; src_count < symcount; src_count++)
2351 flagword flags = (syms[src_count])->flags;
2352 asection *sec = syms[src_count]->section;
2354 if (((flags & (BSF_GLOBAL
2357 | BSF_GNU_UNIQUE)) != 0
2358 || bfd_is_com_section (sec))
2359 && ! bfd_is_und_section (sec))
2361 bfd_size_type namelen;
2362 struct orl *new_map;
2364 /* This symbol will go into the archive header. */
2365 if (orl_count == orl_max)
2368 amt = orl_max * sizeof (struct orl);
2369 new_map = (struct orl *) bfd_realloc (map, amt);
2370 if (new_map == NULL)
2376 if (strcmp (syms[src_count]->name, "__gnu_lto_slim") == 0)
2377 (*_bfd_error_handler)
2378 (_("%s: plugin needed to handle lto object"),
2379 bfd_get_filename (current));
2380 namelen = strlen (syms[src_count]->name);
2381 amt = sizeof (char *);
2382 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2383 if (map[orl_count].name == NULL)
2385 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2387 if (*(map[orl_count].name) == NULL)
2389 strcpy (*(map[orl_count].name), syms[src_count]->name);
2390 map[orl_count].u.abfd = current;
2391 map[orl_count].namidx = stridx;
2393 stridx += namelen + 1;
2399 /* Now ask the BFD to free up any cached information, so we
2400 don't fill all of memory with symbol tables. */
2401 if (! bfd_free_cached_info (current))
2406 /* OK, now we have collected all the data, let's write them out. */
2407 ret = BFD_SEND (arch, write_armap,
2408 (arch, elength, map, orl_count, stridx));
2414 if (first_name != NULL)
2415 bfd_release (arch, first_name);
2424 if (first_name != NULL)
2425 bfd_release (arch, first_name);
2431 bsd_write_armap (bfd *arch,
2432 unsigned int elength,
2434 unsigned int orl_count,
2437 int padit = stridx & 1;
2438 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2439 unsigned int stringsize = stridx + padit;
2440 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2441 unsigned int mapsize = ranlibsize + stringsize + 8;
2443 bfd *current = arch->archive_head;
2444 bfd *last_elt = current; /* Last element arch seen. */
2450 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2452 /* If deterministic, we use 0 as the timestamp in the map.
2453 Some linkers may require that the archive filesystem modification
2454 time is less than (or near to) the archive map timestamp. Those
2455 linkers should not be used with deterministic mode. (GNU ld and
2456 Gold do not have this restriction.) */
2457 bfd_ardata (arch)->armap_timestamp = 0;
2460 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2462 struct stat statbuf;
2464 if (stat (arch->filename, &statbuf) == 0)
2465 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2466 + ARMAP_TIME_OFFSET);
2471 memset (&hdr, ' ', sizeof (struct ar_hdr));
2472 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2473 bfd_ardata (arch)->armap_datepos = (SARMAG
2474 + offsetof (struct ar_hdr, ar_date[0]));
2475 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2476 bfd_ardata (arch)->armap_timestamp);
2477 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2478 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2479 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2481 memcpy (hdr.ar_fmag, ARFMAG, 2);
2482 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2483 != sizeof (struct ar_hdr))
2485 H_PUT_32 (arch, ranlibsize, temp);
2486 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2489 for (count = 0; count < orl_count; count++)
2491 unsigned int offset;
2492 bfd_byte buf[BSD_SYMDEF_SIZE];
2494 if (map[count].u.abfd != last_elt)
2498 struct areltdata *ared = arch_eltdata (current);
2500 firstreal += (ared->parsed_size + ared->extra_size
2501 + sizeof (struct ar_hdr));
2502 firstreal += firstreal % 2;
2503 current = current->archive_next;
2505 while (current != map[count].u.abfd);
2508 /* The archive file format only has 4 bytes to store the offset
2509 of the member. Check to make sure that firstreal has not grown
2511 offset = (unsigned int) firstreal;
2512 if (firstreal != (file_ptr) offset)
2514 bfd_set_error (bfd_error_file_truncated);
2519 H_PUT_32 (arch, map[count].namidx, buf);
2520 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2521 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2526 /* Now write the strings themselves. */
2527 H_PUT_32 (arch, stringsize, temp);
2528 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2530 for (count = 0; count < orl_count; count++)
2532 size_t len = strlen (*map[count].name) + 1;
2534 if (bfd_bwrite (*map[count].name, len, arch) != len)
2538 /* The spec sez this should be a newline. But in order to be
2539 bug-compatible for sun's ar we use a null. */
2542 if (bfd_bwrite ("", 1, arch) != 1)
2549 /* At the end of archive file handling, update the timestamp in the
2550 file, so the linker will accept it.
2552 Return TRUE if the timestamp was OK, or an unusual problem happened.
2553 Return FALSE if we updated the timestamp. */
2556 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2558 struct stat archstat;
2561 /* If creating deterministic archives, just leave the timestamp as-is. */
2562 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2565 /* Flush writes, get last-write timestamp from file, and compare it
2566 to the timestamp IN the file. */
2568 if (bfd_stat (arch, &archstat) == -1)
2570 bfd_perror (_("Reading archive file mod timestamp"));
2572 /* Can't read mod time for some reason. */
2575 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2576 /* OK by the linker's rules. */
2579 /* Update the timestamp. */
2580 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2582 /* Prepare an ASCII version suitable for writing. */
2583 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2584 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2585 bfd_ardata (arch)->armap_timestamp);
2587 /* Write it into the file. */
2588 bfd_ardata (arch)->armap_datepos = (SARMAG
2589 + offsetof (struct ar_hdr, ar_date[0]));
2590 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2591 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2592 != sizeof (hdr.ar_date)))
2594 bfd_perror (_("Writing updated armap timestamp"));
2596 /* Some error while writing. */
2600 /* We updated the timestamp successfully. */
2604 /* A coff armap looks like :
2606 struct ar_hdr with name = '/'
2608 offset of file for symbol 0
2609 offset of file for symbol 1
2611 offset of file for symbol n-1
2618 coff_write_armap (bfd *arch,
2619 unsigned int elength,
2621 unsigned int symbol_count,
2624 /* The size of the ranlib is the number of exported symbols in the
2625 archive * the number of bytes in an int, + an int for the count. */
2626 unsigned int ranlibsize = (symbol_count * 4) + 4;
2627 unsigned int stringsize = stridx;
2628 unsigned int mapsize = stringsize + ranlibsize;
2629 file_ptr archive_member_file_ptr;
2630 bfd *current = arch->archive_head;
2633 int padit = mapsize & 1;
2638 /* Work out where the first object file will go in the archive. */
2639 archive_member_file_ptr = (mapsize
2641 + sizeof (struct ar_hdr)
2644 memset (&hdr, ' ', sizeof (struct ar_hdr));
2645 hdr.ar_name[0] = '/';
2646 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2648 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2649 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2650 ? time (NULL) : 0));
2651 /* This, at least, is what Intel coff sets the values to. */
2652 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2653 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2654 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2655 memcpy (hdr.ar_fmag, ARFMAG, 2);
2657 /* Write the ar header for this item and the number of symbols. */
2658 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2659 != sizeof (struct ar_hdr))
2662 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2665 /* Two passes, first write the file offsets for each symbol -
2666 remembering that each offset is on a two byte boundary. */
2668 /* Write out the file offset for the file associated with each
2669 symbol, and remember to keep the offsets padded out. */
2671 current = arch->archive_head;
2673 while (current != NULL && count < symbol_count)
2675 /* For each symbol which is used defined in this object, write
2676 out the object file's address in the archive. */
2678 while (count < symbol_count && map[count].u.abfd == current)
2680 unsigned int offset = (unsigned int) archive_member_file_ptr;
2682 /* Catch an attempt to grow an archive past its 4Gb limit. */
2683 if (archive_member_file_ptr != (file_ptr) offset)
2685 bfd_set_error (bfd_error_file_truncated);
2688 if (!bfd_write_bigendian_4byte_int (arch, offset))
2692 archive_member_file_ptr += sizeof (struct ar_hdr);
2693 if (! bfd_is_thin_archive (arch))
2695 /* Add size of this archive entry. */
2696 archive_member_file_ptr += arelt_size (current);
2697 /* Remember about the even alignment. */
2698 archive_member_file_ptr += archive_member_file_ptr % 2;
2700 current = current->archive_next;
2703 /* Now write the strings themselves. */
2704 for (count = 0; count < symbol_count; count++)
2706 size_t len = strlen (*map[count].name) + 1;
2708 if (bfd_bwrite (*map[count].name, len, arch) != len)
2712 /* The spec sez this should be a newline. But in order to be
2713 bug-compatible for arc960 we use a null. */
2716 if (bfd_bwrite ("", 1, arch) != 1)
2724 archive_close_worker (void **slot, void *inf ATTRIBUTE_UNUSED)
2726 struct ar_cache *ent = (struct ar_cache *) *slot;
2728 bfd_close_all_done (ent->arbfd);
2733 _bfd_archive_close_and_cleanup (bfd *abfd)
2735 if (bfd_read_p (abfd) && abfd->format == bfd_archive)
2741 /* Close nested archives (if this bfd is a thin archive). */
2742 for (nbfd = abfd->nested_archives; nbfd; nbfd = next)
2744 next = nbfd->archive_next;
2748 htab = bfd_ardata (abfd)->cache;
2751 htab_traverse_noresize (htab, archive_close_worker, NULL);
2753 bfd_ardata (abfd)->cache = NULL;
2756 if (arch_eltdata (abfd) != NULL)
2758 struct areltdata *ared = arch_eltdata (abfd);
2759 htab_t htab = (htab_t) ared->parent_cache;
2763 struct ar_cache ent;
2766 ent.ptr = ared->key;
2767 slot = htab_find_slot (htab, &ent, NO_INSERT);
2770 BFD_ASSERT (((struct ar_cache *) *slot)->arbfd == abfd);
2771 htab_clear_slot (htab, slot);
2775 if (abfd->is_linker_output)
2776 (*abfd->link.hash->hash_table_free) (abfd);