1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2019 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);
315 /* Unfortunately this flag is set after checking that we have
316 an archive, and checking for an archive means one element has
317 sneaked into the cache. */
318 entry->arbfd->no_export = arch_bfd->no_export;
326 hash_file_ptr (const void * p)
328 return (hashval_t) (((struct ar_cache *) p)->ptr);
331 /* Returns non-zero if P1 and P2 are equal. */
334 eq_file_ptr (const void * p1, const void * p2)
336 struct ar_cache *arc1 = (struct ar_cache *) p1;
337 struct ar_cache *arc2 = (struct ar_cache *) p2;
338 return arc1->ptr == arc2->ptr;
341 /* The calloc function doesn't always take size_t (e.g. on VMS)
342 so wrap it to avoid a compile time warning. */
345 _bfd_calloc_wrapper (size_t a, size_t b)
347 return calloc (a, b);
350 /* Kind of stupid to call cons for each one, but we don't do too many. */
353 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
355 struct ar_cache *cache;
356 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
358 /* If the hash table hasn't been created, create it. */
359 if (hash_table == NULL)
361 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
362 NULL, _bfd_calloc_wrapper, free);
363 if (hash_table == NULL)
365 bfd_ardata (arch_bfd)->cache = hash_table;
368 /* Insert new_elt into the hash table by filepos. */
369 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
370 cache->ptr = filepos;
371 cache->arbfd = new_elt;
372 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
374 /* Provide a means of accessing this from child. */
375 arch_eltdata (new_elt)->parent_cache = hash_table;
376 arch_eltdata (new_elt)->key = filepos;
382 open_nested_file (const char *filename, bfd *archive)
388 if (!archive->target_defaulted)
389 target = archive->xvec->name;
390 n_bfd = bfd_openr (filename, target);
393 n_bfd->lto_output = archive->lto_output;
394 n_bfd->no_export = archive->no_export;
395 n_bfd->my_archive = archive;
401 find_nested_archive (const char *filename, bfd *arch_bfd)
405 /* PR 15140: Don't allow a nested archive pointing to itself. */
406 if (filename_cmp (filename, arch_bfd->filename) == 0)
408 bfd_set_error (bfd_error_malformed_archive);
412 for (abfd = arch_bfd->nested_archives;
414 abfd = abfd->archive_next)
416 if (filename_cmp (filename, abfd->filename) == 0)
419 abfd = open_nested_file (filename, arch_bfd);
422 abfd->archive_next = arch_bfd->nested_archives;
423 arch_bfd->nested_archives = abfd;
428 /* The name begins with space. Hence the rest of the name is an index into
432 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
434 unsigned long table_index = 0;
437 /* Should extract string so that I can guarantee not to overflow into
438 the next region, but I'm too lazy. */
440 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
441 table_index = strtol (name + 1, (char **) &endp, 10);
442 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
444 bfd_set_error (bfd_error_malformed_archive);
447 /* In a thin archive, a member of an archive-within-an-archive
448 will have the offset in the inner archive encoded here. */
449 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
451 file_ptr origin = strtol (endp + 1, NULL, 10);
455 bfd_set_error (bfd_error_malformed_archive);
463 return bfd_ardata (arch)->extended_names + table_index;
466 /* This functions reads an arch header and returns an areltdata pointer, or
469 Presumes the file pointer is already in the right place (ie pointing
470 to the ar_hdr in the file). Moves the file pointer; on success it
471 should be pointing to the front of the file contents; on failure it
472 could have been moved arbitrarily. */
475 _bfd_generic_read_ar_hdr (bfd *abfd)
477 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
480 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
481 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
484 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
487 char *hdrp = (char *) &hdr;
488 bfd_size_type parsed_size;
489 struct areltdata *ared;
490 char *filename = NULL;
491 bfd_size_type namelen = 0;
492 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
495 unsigned int extra_size = 0;
499 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
501 if (bfd_get_error () != bfd_error_system_call)
502 bfd_set_error (bfd_error_no_more_archived_files);
505 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
507 || strncmp (hdr.ar_fmag, mag, 2) != 0))
509 bfd_set_error (bfd_error_malformed_archive);
514 fmag_save = hdr.ar_fmag[0];
516 scan = sscanf (hdr.ar_size, "%" BFD_VMA_FMT "u", &parsed_size);
517 hdr.ar_fmag[0] = fmag_save;
520 bfd_set_error (bfd_error_malformed_archive);
524 /* Extract the filename from the archive - there are two ways to
525 specify an extended name table, either the first char of the
526 name is a space, or it's a slash. */
527 if ((hdr.ar_name[0] == '/'
528 || (hdr.ar_name[0] == ' '
529 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
530 && bfd_ardata (abfd)->extended_names != NULL)
532 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
533 if (filename == NULL)
536 /* BSD4.4-style long filename. */
537 else if (is_bsd44_extended_name (hdr.ar_name))
539 /* BSD-4.4 extended name */
540 namelen = atoi (&hdr.ar_name[3]);
541 allocsize += namelen + 1;
542 parsed_size -= namelen;
543 extra_size = namelen;
545 allocptr = (char *) bfd_zmalloc (allocsize);
546 if (allocptr == NULL)
549 + sizeof (struct areltdata)
550 + sizeof (struct ar_hdr));
551 if (bfd_bread (filename, namelen, abfd) != namelen)
554 if (bfd_get_error () != bfd_error_system_call)
555 bfd_set_error (bfd_error_no_more_archived_files);
558 filename[namelen] = '\0';
562 /* We judge the end of the name by looking for '/' or ' '.
563 Note: The SYSV format (terminated by '/') allows embedded
564 spaces, so only look for ' ' if we don't find '/'. */
567 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
570 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
572 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
576 namelen = e - hdr.ar_name;
579 /* If we didn't find a termination character, then the name
580 must be the entire field. */
581 namelen = ar_maxnamelen (abfd);
584 allocsize += namelen + 1;
589 allocptr = (char *) bfd_zmalloc (allocsize);
590 if (allocptr == NULL)
594 ared = (struct areltdata *) allocptr;
596 ared->arch_header = allocptr + sizeof (struct areltdata);
597 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
598 ared->parsed_size = parsed_size;
599 ared->extra_size = extra_size;
600 ared->origin = origin;
602 if (filename != NULL)
603 ared->filename = filename;
606 ared->filename = allocptr + (sizeof (struct areltdata) +
607 sizeof (struct ar_hdr));
609 memcpy (ared->filename, hdr.ar_name, namelen);
610 ared->filename[namelen] = '\0';
616 /* Append the relative pathname for a member of the thin archive
617 to the pathname of the directory containing the archive. */
620 _bfd_append_relative_path (bfd *arch, char *elt_name)
622 const char *arch_name = arch->filename;
623 const char *base_name = lbasename (arch_name);
627 if (base_name == arch_name)
630 prefix_len = base_name - arch_name;
631 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
632 if (filename == NULL)
635 strncpy (filename, arch_name, prefix_len);
636 strcpy (filename + prefix_len, elt_name);
640 /* This is an internal function; it's mainly used when indexing
641 through the archive symbol table, but also used to get the next
642 element, since it handles the bookkeeping so nicely for us. */
645 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
647 struct areltdata *new_areldata;
651 n_bfd = _bfd_look_for_bfd_in_cache (archive, filepos);
655 if (0 > bfd_seek (archive, filepos, SEEK_SET))
658 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
661 filename = new_areldata->filename;
663 if (bfd_is_thin_archive (archive))
665 /* This is a proxy entry for an external file. */
666 if (! IS_ABSOLUTE_PATH (filename))
668 filename = _bfd_append_relative_path (archive, filename);
669 if (filename == NULL)
676 if (new_areldata->origin > 0)
678 /* This proxy entry refers to an element of a nested archive.
679 Locate the member of that archive and return a bfd for it. */
680 bfd *ext_arch = find_nested_archive (filename, archive);
683 || ! bfd_check_format (ext_arch, bfd_archive))
688 n_bfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
694 n_bfd->proxy_origin = bfd_tell (archive);
698 /* It's not an element of a nested archive;
699 open the external file as a bfd. */
700 n_bfd = open_nested_file (filename, archive);
702 bfd_set_error (bfd_error_malformed_archive);
706 n_bfd = _bfd_create_empty_archive_element_shell (archive);
715 n_bfd->proxy_origin = bfd_tell (archive);
717 if (bfd_is_thin_archive (archive))
723 n_bfd->origin = n_bfd->proxy_origin;
724 n_bfd->filename = xstrdup (filename);
727 n_bfd->arelt_data = new_areldata;
729 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
730 n_bfd->flags |= archive->flags & (BFD_COMPRESS
732 | BFD_COMPRESS_GABI);
734 /* Copy is_linker_input. */
735 n_bfd->is_linker_input = archive->is_linker_input;
737 if (archive->no_element_cache
738 || _bfd_add_bfd_to_archive_cache (archive, filepos, n_bfd))
742 n_bfd->arelt_data = NULL;
746 /* Return the BFD which is referenced by the symbol in ABFD indexed by
747 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
750 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
754 entry = bfd_ardata (abfd)->symdefs + sym_index;
755 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
759 _bfd_noarchive_get_elt_at_index (bfd *abfd,
760 symindex sym_index ATTRIBUTE_UNUSED)
762 return (bfd *) _bfd_ptr_bfd_null_error (abfd);
767 bfd_openr_next_archived_file
770 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
773 Provided a BFD, @var{archive}, containing an archive and NULL, open
774 an input BFD on the first contained element and returns that.
775 Subsequent calls should pass the archive and the previous return
776 value to return a created BFD to the next contained element. NULL
777 is returned when there are no more.
778 Note - if you want to process the bfd returned by this call be
779 sure to call bfd_check_format() on it first.
783 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
785 if ((bfd_get_format (archive) != bfd_archive)
786 || (archive->direction == write_direction))
788 bfd_set_error (bfd_error_invalid_operation);
792 return BFD_SEND (archive,
793 openr_next_archived_file, (archive, last_file));
797 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
802 filestart = bfd_ardata (archive)->first_file_filepos;
805 filestart = last_file->proxy_origin;
806 if (! bfd_is_thin_archive (archive))
808 bfd_size_type size = arelt_size (last_file);
811 /* Pad to an even boundary...
812 Note that last_file->origin can be odd in the case of
813 BSD-4.4-style element with a long odd size. */
814 filestart += filestart % 2;
815 if (filestart < last_file->proxy_origin)
817 /* Prevent looping. See PR19256. */
818 bfd_set_error (bfd_error_malformed_archive);
824 return _bfd_get_elt_at_filepos (archive, filestart);
828 _bfd_noarchive_openr_next_archived_file (bfd *archive,
829 bfd *last_file ATTRIBUTE_UNUSED)
831 return (bfd *) _bfd_ptr_bfd_null_error (archive);
835 bfd_generic_archive_p (bfd *abfd)
837 struct artdata *tdata_hold;
838 char armag[SARMAG + 1];
841 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
843 if (bfd_get_error () != bfd_error_system_call)
844 bfd_set_error (bfd_error_wrong_format);
848 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
850 if (strncmp (armag, ARMAG, SARMAG) != 0
851 && ! bfd_is_thin_archive (abfd))
853 bfd_set_error (bfd_error_wrong_format);
857 tdata_hold = bfd_ardata (abfd);
859 amt = sizeof (struct artdata);
860 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
861 if (bfd_ardata (abfd) == NULL)
863 bfd_ardata (abfd) = tdata_hold;
867 bfd_ardata (abfd)->first_file_filepos = SARMAG;
868 /* Cleared by bfd_zalloc above.
869 bfd_ardata (abfd)->cache = NULL;
870 bfd_ardata (abfd)->archive_head = NULL;
871 bfd_ardata (abfd)->symdefs = NULL;
872 bfd_ardata (abfd)->extended_names = NULL;
873 bfd_ardata (abfd)->extended_names_size = 0;
874 bfd_ardata (abfd)->tdata = NULL; */
876 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
877 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
879 if (bfd_get_error () != bfd_error_system_call)
880 bfd_set_error (bfd_error_wrong_format);
881 bfd_release (abfd, bfd_ardata (abfd));
882 bfd_ardata (abfd) = tdata_hold;
886 if (abfd->target_defaulted && bfd_has_map (abfd))
891 /* This archive has a map, so we may presume that the contents
892 are object files. Make sure that if the first file in the
893 archive can be recognized as an object file, it is for this
894 target. If not, assume that this is the wrong format. If
895 the first file is not an object file, somebody is doing
896 something weird, and we permit it so that ar -t will work.
898 This is done because any normal format will recognize any
899 normal archive, regardless of the format of the object files.
900 We do accept an empty archive. */
902 save = abfd->no_element_cache;
903 abfd->no_element_cache = 1;
904 first = bfd_openr_next_archived_file (abfd, NULL);
905 abfd->no_element_cache = save;
908 first->target_defaulted = FALSE;
909 if (bfd_check_format (first, bfd_object)
910 && first->xvec != abfd->xvec)
911 bfd_set_error (bfd_error_wrong_object_format);
919 /* Some constants for a 32 bit BSD archive structure. We do not
920 support 64 bit archives presently; so far as I know, none actually
921 exist. Supporting them would require changing these constants, and
922 changing some H_GET_32 to H_GET_64. */
924 /* The size of an external symdef structure. */
925 #define BSD_SYMDEF_SIZE 8
927 /* The offset from the start of a symdef structure to the file offset. */
928 #define BSD_SYMDEF_OFFSET_SIZE 4
930 /* The size of the symdef count. */
931 #define BSD_SYMDEF_COUNT_SIZE 4
933 /* The size of the string count. */
934 #define BSD_STRING_COUNT_SIZE 4
936 /* Read a BSD-style archive symbol table. Returns FALSE on error,
940 do_slurp_bsd_armap (bfd *abfd)
942 struct areltdata *mapdata;
943 unsigned int counter;
944 bfd_byte *raw_armap, *rbase;
945 struct artdata *ardata = bfd_ardata (abfd);
947 bfd_size_type parsed_size, amt;
950 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
953 parsed_size = mapdata->parsed_size;
955 /* PR 17512: file: 883ff754. */
956 /* PR 17512: file: 0458885f. */
960 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
961 if (raw_armap == NULL)
964 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
966 if (bfd_get_error () != bfd_error_system_call)
967 bfd_set_error (bfd_error_malformed_archive);
969 bfd_release (abfd, raw_armap);
973 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
974 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
975 parsed_size - BSD_SYMDEF_COUNT_SIZE)
977 /* Probably we're using the wrong byte ordering. */
978 bfd_set_error (bfd_error_wrong_format);
982 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
983 stringbase = ((char *) rbase
984 + ardata->symdef_count * BSD_SYMDEF_SIZE
985 + BSD_STRING_COUNT_SIZE);
986 amt = ardata->symdef_count * sizeof (carsym);
987 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
988 if (!ardata->symdefs)
991 for (counter = 0, set = ardata->symdefs;
992 counter < ardata->symdef_count;
993 counter++, set++, rbase += BSD_SYMDEF_SIZE)
995 set->name = H_GET_32 (abfd, rbase) + stringbase;
996 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
999 ardata->first_file_filepos = bfd_tell (abfd);
1000 /* Pad to an even boundary if you have to. */
1001 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1002 /* FIXME, we should provide some way to free raw_ardata when
1003 we are done using the strings from it. For now, it seems
1004 to be allocated on an objalloc anyway... */
1005 bfd_has_map (abfd) = TRUE;
1009 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1013 do_slurp_coff_armap (bfd *abfd)
1015 struct areltdata *mapdata;
1016 int *raw_armap, *rawptr;
1017 struct artdata *ardata = bfd_ardata (abfd);
1020 bfd_size_type stringsize;
1021 bfd_size_type parsed_size;
1023 bfd_size_type nsymz; /* Number of symbols in armap. */
1024 bfd_vma (*swap) (const void *);
1025 char int_buf[sizeof (long)];
1026 bfd_size_type carsym_size, ptrsize;
1029 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1030 if (mapdata == NULL)
1032 parsed_size = mapdata->parsed_size;
1035 if (bfd_bread (int_buf, 4, abfd) != 4)
1037 if (bfd_get_error () != bfd_error_system_call)
1038 bfd_set_error (bfd_error_malformed_archive);
1041 /* It seems that all numeric information in a coff archive is always
1042 in big endian format, nomatter the host or target. */
1044 nsymz = bfd_getb32 (int_buf);
1045 stringsize = parsed_size - (4 * nsymz) - 4;
1047 /* The coff armap must be read sequentially. So we construct a
1048 bsd-style one in core all at once, for simplicity. */
1050 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
1053 carsym_size = (nsymz * sizeof (carsym));
1054 ptrsize = (4 * nsymz);
1056 if (carsym_size + stringsize + 1 <= carsym_size)
1059 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
1060 carsym_size + stringsize + 1);
1061 if (ardata->symdefs == NULL)
1063 carsyms = ardata->symdefs;
1064 stringbase = ((char *) ardata->symdefs) + carsym_size;
1066 /* Allocate and read in the raw offsets. */
1067 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
1068 if (raw_armap == NULL)
1069 goto release_symdefs;
1070 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
1071 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
1073 if (bfd_get_error () != bfd_error_system_call)
1074 bfd_set_error (bfd_error_malformed_archive);
1075 goto release_raw_armap;
1078 /* OK, build the carsyms. */
1079 stringend = stringbase + stringsize;
1081 for (i = 0; i < nsymz; i++)
1083 rawptr = raw_armap + i;
1084 carsyms->file_offset = swap ((bfd_byte *) rawptr);
1085 carsyms->name = stringbase;
1086 stringbase += strlen (stringbase);
1087 if (stringbase != stringend)
1092 ardata->symdef_count = nsymz;
1093 ardata->first_file_filepos = bfd_tell (abfd);
1094 /* Pad to an even boundary if you have to. */
1095 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1097 bfd_has_map (abfd) = TRUE;
1098 bfd_release (abfd, raw_armap);
1100 /* Check for a second archive header (as used by PE). */
1102 struct areltdata *tmp;
1104 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1105 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1108 if (tmp->arch_header[0] == '/'
1109 && tmp->arch_header[1] == ' ')
1111 ardata->first_file_filepos +=
1112 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1121 bfd_release (abfd, raw_armap);
1123 bfd_release (abfd, (ardata)->symdefs);
1127 /* This routine can handle either coff-style or bsd-style armaps
1128 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1131 bfd_slurp_armap (bfd *abfd)
1134 int i = bfd_bread (nextname, 16, abfd);
1141 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1144 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1145 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1146 return do_slurp_bsd_armap (abfd);
1147 else if (CONST_STRNEQ (nextname, "/ "))
1148 return do_slurp_coff_armap (abfd);
1149 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1151 /* 64bit (Irix 6) archive. */
1153 return _bfd_archive_64_bit_slurp_armap (abfd);
1155 bfd_set_error (bfd_error_wrong_format);
1159 else if (CONST_STRNEQ (nextname, "#1/20 "))
1161 /* Mach-O has a special name for armap when the map is sorted by name.
1162 However because this name has a space it is slightly more difficult
1167 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1169 /* Read the extended name. We know its length. */
1170 if (bfd_bread (extname, 20, abfd) != 20)
1172 if (bfd_seek (abfd, -(file_ptr) (sizeof (hdr) + 20), SEEK_CUR) != 0)
1175 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1176 || CONST_STRNEQ (extname, "__.SYMDEF"))
1177 return do_slurp_bsd_armap (abfd);
1180 bfd_has_map (abfd) = FALSE;
1184 /** Extended name table.
1186 Normally archives support only 14-character filenames.
1188 Intel has extended the format: longer names are stored in a special
1189 element (the first in the archive, or second if there is an armap);
1190 the name in the ar_hdr is replaced by <space><index into filename
1191 element>. Index is the P.R. of an int (decimal). Data General have
1192 extended the format by using the prefix // for the special element. */
1194 /* Returns FALSE on error, TRUE otherwise. */
1197 _bfd_slurp_extended_name_table (bfd *abfd)
1200 struct areltdata *namedata;
1203 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1204 we probably don't want to return TRUE. */
1205 if (bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET) != 0)
1208 if (bfd_bread (nextname, 16, abfd) == 16)
1210 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1213 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1214 && ! CONST_STRNEQ (nextname, "// "))
1216 bfd_ardata (abfd)->extended_names = NULL;
1217 bfd_ardata (abfd)->extended_names_size = 0;
1221 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1222 if (namedata == NULL)
1225 amt = namedata->parsed_size;
1229 bfd_ardata (abfd)->extended_names_size = amt;
1230 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1231 if (bfd_ardata (abfd)->extended_names == NULL)
1235 bfd_ardata (abfd)->extended_names = NULL;
1236 bfd_ardata (abfd)->extended_names_size = 0;
1240 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1242 if (bfd_get_error () != bfd_error_system_call)
1243 bfd_set_error (bfd_error_malformed_archive);
1244 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1245 bfd_ardata (abfd)->extended_names = NULL;
1249 /* Since the archive is supposed to be printable if it contains
1250 text, the entries in the list are newline-padded, not null
1251 padded. In SVR4-style archives, the names also have a
1252 trailing '/'. DOS/NT created archive often have \ in them
1253 We'll fix all problems here. */
1255 char *ext_names = bfd_ardata (abfd)->extended_names;
1256 char *temp = ext_names;
1257 char *limit = temp + namedata->parsed_size;
1259 for (; temp < limit; ++temp)
1261 if (*temp == ARFMAG[1])
1262 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1269 /* Pad to an even boundary if you have to. */
1270 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1271 bfd_ardata (abfd)->first_file_filepos +=
1272 (bfd_ardata (abfd)->first_file_filepos) % 2;
1281 /* Return a copy of the stuff in the filename between any :]> and a
1285 normalize (bfd *abfd, const char *file)
1291 first = file + strlen (file) - 1;
1294 while (first != file)
1298 if (*first == ':' || *first == ']' || *first == '>')
1306 copy = bfd_alloc (abfd, last - first + 1);
1310 memcpy (copy, first, last - first);
1311 copy[last - first] = 0;
1318 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1320 return lbasename (file);
1324 /* Adjust a relative path name based on the reference path.
1327 Relative path Reference path Result
1328 ------------- -------------- ------
1330 foo/bar.o lib.a foo/bar.o
1331 bar.o foo/lib.a ../bar.o
1332 foo/bar.o baz/lib.a ../foo/bar.o
1333 bar.o ../lib.a <parent of current dir>/bar.o
1334 ; ../bar.o ../lib.a bar.o
1335 ; ../bar.o lib.a ../bar.o
1336 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1337 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1338 bar.o foo/baz/lib.a ../../bar.o
1340 Note - the semicolons above are there to prevent the BFD chew
1341 utility from interpreting those lines as prototypes to put into
1342 the autogenerated bfd.h header...
1344 Note - the string is returned in a static buffer. */
1347 adjust_relative_path (const char * path, const char * ref_path)
1349 static char *pathbuf = NULL;
1350 static unsigned int pathbuf_len = 0;
1356 unsigned int dir_up = 0;
1357 unsigned int dir_down = 0;
1359 char * pwd = getpwd ();
1362 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1363 lpath = lrealpath (path);
1364 pathp = lpath == NULL ? path : lpath;
1366 rpath = lrealpath (ref_path);
1367 refp = rpath == NULL ? ref_path : rpath;
1369 /* Remove common leading path elements. */
1372 const char *e1 = pathp;
1373 const char *e2 = refp;
1375 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1377 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1379 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1380 || filename_ncmp (pathp, refp, e1 - pathp) != 0)
1386 len = strlen (pathp) + 1;
1387 /* For each leading path element in the reference path,
1388 insert "../" into the path. */
1389 for (; *refp; ++refp)
1390 if (IS_DIR_SEPARATOR (*refp))
1392 /* PR 12710: If the path element is "../" then instead of
1393 inserting "../" we need to insert the name of the directory
1394 at the current level. */
1395 if (refp > ref_path + 1
1403 /* If the lrealpath calls above succeeded then we should never
1404 see dir_up and dir_down both being non-zero. */
1410 down = pwd + strlen (pwd) - 1;
1412 while (dir_down && down > pwd)
1414 if (IS_DIR_SEPARATOR (*down))
1417 BFD_ASSERT (dir_down == 0);
1418 len += strlen (down) + 1;
1423 if (len > pathbuf_len)
1425 if (pathbuf != NULL)
1428 pathbuf = (char *) bfd_malloc (len);
1429 if (pathbuf == NULL)
1435 while (dir_up-- > 0)
1437 /* FIXME: Support Windows style path separators as well. */
1438 strcpy (newp, "../");
1443 sprintf (newp, "%s/%s", down, pathp);
1445 strcpy (newp, pathp);
1453 /* Build a BFD style extended name table. */
1456 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1458 bfd_size_type *tablen,
1461 *name = "ARFILENAMES/";
1462 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1465 /* Build an SVR4 style extended name table. */
1468 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1470 bfd_size_type *tablen,
1474 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1478 _bfd_noarchive_construct_extended_name_table (bfd *abfd ATTRIBUTE_UNUSED,
1479 char **tabloc ATTRIBUTE_UNUSED,
1480 bfd_size_type *len ATTRIBUTE_UNUSED,
1481 const char **name ATTRIBUTE_UNUSED)
1486 /* Follows archive_head and produces an extended name table if
1487 necessary. Returns (in tabloc) a pointer to an extended name
1488 table, and in tablen the length of the table. If it makes an entry
1489 it clobbers the filename so that the element may be written without
1490 further massage. Returns TRUE if it ran successfully, FALSE if
1491 something went wrong. A successful return may still involve a
1492 zero-length tablen! */
1495 _bfd_construct_extended_name_table (bfd *abfd,
1496 bfd_boolean trailing_slash,
1498 bfd_size_type *tablen)
1500 unsigned int maxname = ar_maxnamelen (abfd);
1501 bfd_size_type total_namelen = 0;
1504 const char *last_filename;
1508 last_filename = NULL;
1510 /* Figure out how long the table should be. */
1511 for (current = abfd->archive_head;
1513 current = current->archive_next)
1516 unsigned int thislen;
1518 if (bfd_is_thin_archive (abfd))
1520 const char *filename = current->filename;
1522 /* If the element being added is a member of another archive
1523 (i.e., we are flattening), use the containing archive's name. */
1524 if (current->my_archive
1525 && ! bfd_is_thin_archive (current->my_archive))
1526 filename = current->my_archive->filename;
1528 /* If the path is the same as the previous path seen,
1529 reuse it. This can happen when flattening a thin
1530 archive that contains other archives. */
1531 if (last_filename && filename_cmp (last_filename, filename) == 0)
1534 last_filename = filename;
1536 /* If the path is relative, adjust it relative to
1537 the containing archive. */
1538 if (! IS_ABSOLUTE_PATH (filename)
1539 && ! IS_ABSOLUTE_PATH (abfd->filename))
1540 normal = adjust_relative_path (filename, abfd->filename);
1544 /* In a thin archive, always store the full pathname
1545 in the extended name table. */
1546 total_namelen += strlen (normal) + 1;
1548 /* Leave room for trailing slash. */
1554 normal = normalize (current, current->filename);
1558 thislen = strlen (normal);
1560 if (thislen > maxname
1561 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1564 if (thislen > maxname)
1566 /* Add one to leave room for \n. */
1567 total_namelen += thislen + 1;
1570 /* Leave room for trailing slash. */
1576 struct ar_hdr *hdr = arch_hdr (current);
1577 if (filename_ncmp (normal, hdr->ar_name, thislen) != 0
1578 || (thislen < sizeof hdr->ar_name
1579 && hdr->ar_name[thislen] != ar_padchar (current)))
1581 /* Must have been using extended format even though it
1582 didn't need to. Fix it to use normal format. */
1583 memcpy (hdr->ar_name, normal, thislen);
1584 if (thislen < maxname
1585 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1586 hdr->ar_name[thislen] = ar_padchar (current);
1591 if (total_namelen == 0)
1594 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1595 if (*tabloc == NULL)
1598 *tablen = total_namelen;
1601 last_filename = NULL;
1604 for (current = abfd->archive_head;
1606 current = current->archive_next)
1609 unsigned int thislen;
1611 const char *filename = current->filename;
1613 if (bfd_is_thin_archive (abfd))
1615 /* If the element being added is a member of another archive
1616 (i.e., we are flattening), use the containing archive's name. */
1617 if (current->my_archive
1618 && ! bfd_is_thin_archive (current->my_archive))
1619 filename = current->my_archive->filename;
1620 /* If the path is the same as the previous path seen,
1621 reuse it. This can happen when flattening a thin
1622 archive that contains other archives.
1623 If the path is relative, adjust it relative to
1624 the containing archive. */
1625 if (last_filename && filename_cmp (last_filename, filename) == 0)
1626 normal = last_filename;
1627 else if (! IS_ABSOLUTE_PATH (filename)
1628 && ! IS_ABSOLUTE_PATH (abfd->filename))
1629 normal = adjust_relative_path (filename, abfd->filename);
1635 normal = normalize (current, filename);
1640 thislen = strlen (normal);
1641 if (thislen > maxname || bfd_is_thin_archive (abfd))
1643 /* Works for now; may need to be re-engineered if we
1644 encounter an oddball archive format and want to
1645 generalise this hack. */
1646 struct ar_hdr *hdr = arch_hdr (current);
1647 if (normal == last_filename)
1648 stroff = last_stroff;
1651 strcpy (strptr, normal);
1652 if (! trailing_slash)
1653 strptr[thislen] = ARFMAG[1];
1656 strptr[thislen] = '/';
1657 strptr[thislen + 1] = ARFMAG[1];
1659 stroff = strptr - *tabloc;
1660 last_stroff = stroff;
1662 hdr->ar_name[0] = ar_padchar (current);
1663 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1665 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1667 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1669 current->origin - sizeof (struct ar_hdr));
1672 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1673 if (normal != last_filename)
1675 strptr += thislen + 1;
1678 last_filename = filename;
1686 /* Do not construct an extended name table but transforms name field into
1687 its extended form. */
1690 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1692 bfd_size_type *tablen,
1695 unsigned int maxname = ar_maxnamelen (abfd);
1702 for (current = abfd->archive_head;
1704 current = current->archive_next)
1706 const char *normal = normalize (current, current->filename);
1713 for (len = 0; normal[len]; len++)
1714 if (normal[len] == ' ')
1717 if (len > maxname || has_space)
1719 struct ar_hdr *hdr = arch_hdr (current);
1721 len = (len + 3) & ~3;
1722 arch_eltdata (current)->extra_size = len;
1723 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1730 /* Write an archive header. */
1733 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1735 struct ar_hdr *hdr = arch_hdr (abfd);
1737 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1742 /* Write an archive header using BSD4.4 convention. */
1745 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1747 struct ar_hdr *hdr = arch_hdr (abfd);
1749 if (is_bsd44_extended_name (hdr->ar_name))
1751 /* This is a BSD 4.4 extended name. */
1752 const char *fullname = normalize (abfd, abfd->filename);
1753 unsigned int len = strlen (fullname);
1754 unsigned int padded_len = (len + 3) & ~3;
1756 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1758 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size),
1759 arch_eltdata (abfd)->parsed_size + padded_len))
1762 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1765 if (bfd_bwrite (fullname, len, archive) != len)
1770 static const char pad[3] = { 0, 0, 0 };
1772 len = 4 - (len & 3);
1773 if (bfd_bwrite (pad, len, archive) != len)
1779 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1786 _bfd_noarchive_write_ar_hdr (bfd *archive, bfd *abfd ATTRIBUTE_UNUSED)
1788 return _bfd_bool_bfd_false_error (archive);
1791 /* A couple of functions for creating ar_hdrs. */
1793 #ifdef HPUX_LARGE_AR_IDS
1794 /* Function to encode large UID/GID values according to HP. */
1797 hpux_uid_gid_encode (char str[6], long int id)
1801 str[5] = '@' + (id & 3);
1804 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1805 str[cnt] = ' ' + (id & 0x3f);
1807 #endif /* HPUX_LARGE_AR_IDS */
1817 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1818 make one. The filename must refer to a filename in the filesystem.
1819 The filename field of the ar_hdr will NOT be initialized. If member
1820 is set, and it's an in-memory bfd, we fake it. */
1822 static struct areltdata *
1823 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1826 struct areltdata *ared;
1830 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1832 /* Assume we just "made" the member, and fake it. */
1833 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1834 time (&status.st_mtime);
1835 status.st_uid = getuid ();
1836 status.st_gid = getgid ();
1837 status.st_mode = 0644;
1838 status.st_size = bim->size;
1840 else if (stat (filename, &status) != 0)
1842 bfd_set_error (bfd_error_system_call);
1846 /* If the caller requested that the BFD generate deterministic output,
1847 fake values for modification time, UID, GID, and file mode. */
1848 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1850 status.st_mtime = 0;
1853 status.st_mode = 0644;
1856 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1857 ared = (struct areltdata *) bfd_zmalloc (amt);
1860 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1862 /* ar headers are space padded, not null padded! */
1863 memset (hdr, ' ', sizeof (struct ar_hdr));
1865 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1867 #ifdef HPUX_LARGE_AR_IDS
1868 /* HP has a very "special" way to handle UID/GID's with numeric values
1870 if (status.st_uid > 99999)
1871 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1874 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1876 #ifdef HPUX_LARGE_AR_IDS
1877 /* HP has a very "special" way to handle UID/GID's with numeric values
1879 if (status.st_gid > 99999)
1880 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1883 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1885 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1887 if (status.st_size - (bfd_size_type) status.st_size != 0)
1889 bfd_set_error (bfd_error_file_too_big);
1893 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size), status.st_size))
1898 memcpy (hdr->ar_fmag, ARFMAG, 2);
1899 ared->parsed_size = status.st_size;
1900 ared->arch_header = (char *) hdr;
1905 /* Analogous to stat call. */
1908 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1913 if (abfd->arelt_data == NULL)
1915 bfd_set_error (bfd_error_invalid_operation);
1919 hdr = arch_hdr (abfd);
1920 /* PR 17512: file: 3d9e9fe9. */
1923 #define foo(arelt, stelt, size) \
1924 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1925 if (aloser == hdr->arelt) \
1928 /* Some platforms support special notations for large IDs. */
1929 #ifdef HPUX_LARGE_AR_IDS
1930 # define foo2(arelt, stelt, size) \
1931 if (hdr->arelt[5] == ' ') \
1933 foo (arelt, stelt, size); \
1938 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1940 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1943 buf->stelt += hdr->arelt[cnt] - ' '; \
1945 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1948 buf->stelt += hdr->arelt[5] - '@'; \
1951 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1954 foo (ar_date, st_mtime, 10);
1955 foo2 (ar_uid, st_uid, 10);
1956 foo2 (ar_gid, st_gid, 10);
1957 foo (ar_mode, st_mode, 8);
1959 buf->st_size = arch_eltdata (abfd)->parsed_size;
1965 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1967 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1968 Fortunately ic960 users will never use that option. Fixing this
1969 is very hard; fortunately I know how to do it and will do so once
1970 intel's release is out the door. */
1972 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1974 const char *filename;
1975 size_t maxlen = ar_maxnamelen (abfd);
1977 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1979 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
1983 filename = normalize (abfd, pathname);
1984 if (filename == NULL)
1990 length = strlen (filename);
1992 if (length <= maxlen)
1993 memcpy (hdr->ar_name, filename, length);
1995 /* Add the padding character if there is room for it. */
1997 || (length == maxlen && length < sizeof hdr->ar_name))
1998 (hdr->ar_name)[length] = ar_padchar (abfd);
2002 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2004 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2006 const char *filename = lbasename (pathname);
2007 size_t maxlen = ar_maxnamelen (abfd);
2009 length = strlen (filename);
2011 if (length <= maxlen)
2012 memcpy (hdr->ar_name, filename, length);
2015 /* pathname: meet procrustes */
2016 memcpy (hdr->ar_name, filename, maxlen);
2020 if (length < maxlen)
2021 (hdr->ar_name)[length] = ar_padchar (abfd);
2024 /* Store name into ar header. Truncates the name to fit.
2025 1> strip pathname to be just the basename.
2026 2> if it's short enuf to fit, stuff it in.
2027 3> If it doesn't end with .o, truncate it to fit
2028 4> truncate it before the .o, append .o, stuff THAT in. */
2030 /* This is what gnu ar does. It's better but incompatible with the
2034 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2036 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2038 const char *filename = lbasename (pathname);
2039 size_t maxlen = ar_maxnamelen (abfd);
2041 length = strlen (filename);
2043 if (length <= maxlen)
2044 memcpy (hdr->ar_name, filename, length);
2047 /* pathname: meet procrustes. */
2048 memcpy (hdr->ar_name, filename, maxlen);
2049 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
2051 hdr->ar_name[maxlen - 2] = '.';
2052 hdr->ar_name[maxlen - 1] = 'o';
2058 (hdr->ar_name)[length] = ar_padchar (abfd);
2062 _bfd_noarchive_truncate_arname (bfd *abfd ATTRIBUTE_UNUSED,
2063 const char *pathname ATTRIBUTE_UNUSED,
2064 char *arhdr ATTRIBUTE_UNUSED)
2068 /* The BFD is open for write and has its format set to bfd_archive. */
2071 _bfd_write_archive_contents (bfd *arch)
2074 char *etable = NULL;
2075 bfd_size_type elength = 0;
2076 const char *ename = NULL;
2077 bfd_boolean makemap = bfd_has_map (arch);
2078 /* If no .o's, don't bother to make a map. */
2079 bfd_boolean hasobjects = FALSE;
2080 bfd_size_type wrote;
2084 /* Verify the viability of all entries; if any of them live in the
2085 filesystem (as opposed to living in an archive open for input)
2086 then construct a fresh ar_hdr for them. */
2087 for (current = arch->archive_head;
2089 current = current->archive_next)
2091 /* This check is checking the bfds for the objects we're reading
2092 from (which are usually either an object file or archive on
2093 disk), not the archive entries we're writing to. We don't
2094 actually create bfds for the archive members, we just copy
2095 them byte-wise when we write out the archive. */
2096 if (bfd_write_p (current))
2098 bfd_set_error (bfd_error_invalid_operation);
2101 if (!current->arelt_data)
2103 current->arelt_data =
2104 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2105 if (!current->arelt_data)
2108 /* Put in the file name. */
2109 BFD_SEND (arch, _bfd_truncate_arname,
2110 (arch, current->filename, (char *) arch_hdr (current)));
2113 if (makemap && ! hasobjects)
2114 { /* Don't bother if we won't make a map! */
2115 if ((bfd_check_format (current, bfd_object)))
2120 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2121 (arch, &etable, &elength, &ename)))
2124 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2127 if (bfd_is_thin_archive (arch))
2129 wrote = bfd_bwrite (armag, SARMAG, arch);
2130 if (wrote != SARMAG)
2133 if (makemap && hasobjects)
2135 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2143 memset (&hdr, ' ', sizeof (struct ar_hdr));
2144 memcpy (hdr.ar_name, ename, strlen (ename));
2145 /* Round size up to even number in archive header. */
2146 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size),
2147 (elength + 1) & ~(bfd_size_type) 1))
2149 memcpy (hdr.ar_fmag, ARFMAG, 2);
2150 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2151 != sizeof (struct ar_hdr))
2152 || bfd_bwrite (etable, elength, arch) != elength)
2154 if ((elength % 2) == 1)
2156 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2161 for (current = arch->archive_head;
2163 current = current->archive_next)
2165 char buffer[DEFAULT_BUFFERSIZE];
2166 bfd_size_type remaining = arelt_size (current);
2168 /* Write ar header. */
2169 if (!_bfd_write_ar_hdr (arch, current))
2171 if (bfd_is_thin_archive (arch))
2173 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2178 unsigned int amt = DEFAULT_BUFFERSIZE;
2180 if (amt > remaining)
2183 if (bfd_bread (buffer, amt, current) != amt)
2185 if (bfd_get_error () != bfd_error_system_call)
2186 bfd_set_error (bfd_error_file_truncated);
2189 if (bfd_bwrite (buffer, amt, arch) != amt)
2194 if ((arelt_size (current) % 2) == 1)
2196 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2201 if (makemap && hasobjects)
2203 /* Verify the timestamp in the archive file. If it would not be
2204 accepted by the linker, rewrite it until it would be. If
2205 anything odd happens, break out and just return. (The
2206 Berkeley linker checks the timestamp and refuses to read the
2207 table-of-contents if it is >60 seconds less than the file's
2208 modified-time. That painful hack requires this painful hack. */
2212 if (bfd_update_armap_timestamp (arch))
2215 (_("warning: writing archive was slow: rewriting timestamp"));
2217 while (++tries < 6);
2223 bfd_set_input_error (current, bfd_get_error ());
2227 /* Note that the namidx for the first symbol is 0. */
2230 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2232 char *first_name = NULL;
2234 file_ptr elt_no = 0;
2235 struct orl *map = NULL;
2236 unsigned int orl_max = 1024; /* Fine initial default. */
2237 unsigned int orl_count = 0;
2239 asymbol **syms = NULL;
2243 static bfd_boolean report_plugin_err = TRUE;
2245 /* Dunno if this is the best place for this info... */
2247 elength += sizeof (struct ar_hdr);
2248 elength += elength % 2;
2250 amt = orl_max * sizeof (struct orl);
2251 map = (struct orl *) bfd_malloc (amt);
2255 /* We put the symbol names on the arch objalloc, and then discard
2257 first_name = (char *) bfd_alloc (arch, 1);
2258 if (first_name == NULL)
2261 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2262 while (arch->archive_head
2263 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2264 arch->archive_head = arch->archive_head->archive_next;
2266 /* Map over each element. */
2267 for (current = arch->archive_head;
2269 current = current->archive_next, elt_no++)
2271 if (bfd_check_format (current, bfd_object)
2272 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2278 if (current->lto_slim_object && report_plugin_err)
2280 report_plugin_err = FALSE;
2282 (_("%pB: plugin needed to handle lto object"),
2286 storage = bfd_get_symtab_upper_bound (current);
2292 if (storage > syms_max)
2297 syms = (asymbol **) bfd_malloc (syms_max);
2301 symcount = bfd_canonicalize_symtab (current, syms);
2305 /* Now map over all the symbols, picking out the ones we
2307 for (src_count = 0; src_count < symcount; src_count++)
2309 flagword flags = (syms[src_count])->flags;
2310 asection *sec = syms[src_count]->section;
2312 if (((flags & (BSF_GLOBAL
2315 | BSF_GNU_UNIQUE)) != 0
2316 || bfd_is_com_section (sec))
2317 && ! bfd_is_und_section (sec))
2319 bfd_size_type namelen;
2320 struct orl *new_map;
2322 /* This symbol will go into the archive header. */
2323 if (orl_count == orl_max)
2326 amt = orl_max * sizeof (struct orl);
2327 new_map = (struct orl *) bfd_realloc (map, amt);
2328 if (new_map == NULL)
2334 if (syms[src_count]->name[0] == '_'
2335 && syms[src_count]->name[1] == '_'
2336 && strcmp (syms[src_count]->name
2337 + (syms[src_count]->name[2] == '_'),
2338 "__gnu_lto_slim") == 0
2339 && report_plugin_err)
2341 report_plugin_err = FALSE;
2343 (_("%pB: plugin needed to handle lto object"),
2346 namelen = strlen (syms[src_count]->name);
2347 amt = sizeof (char *);
2348 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2349 if (map[orl_count].name == NULL)
2351 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2353 if (*(map[orl_count].name) == NULL)
2355 strcpy (*(map[orl_count].name), syms[src_count]->name);
2356 map[orl_count].u.abfd = current;
2357 map[orl_count].namidx = stridx;
2359 stridx += namelen + 1;
2365 /* Now ask the BFD to free up any cached information, so we
2366 don't fill all of memory with symbol tables. */
2367 if (! bfd_free_cached_info (current))
2372 /* OK, now we have collected all the data, let's write them out. */
2373 ret = BFD_SEND (arch, write_armap,
2374 (arch, elength, map, orl_count, stridx));
2380 if (first_name != NULL)
2381 bfd_release (arch, first_name);
2390 if (first_name != NULL)
2391 bfd_release (arch, first_name);
2397 _bfd_bsd_write_armap (bfd *arch,
2398 unsigned int elength,
2400 unsigned int orl_count,
2403 int padit = stridx & 1;
2404 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2405 unsigned int stringsize = stridx + padit;
2406 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2407 unsigned int mapsize = ranlibsize + stringsize + 8;
2408 file_ptr firstreal, first;
2416 first = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2420 current = arch->archive_head;
2421 last_elt = current; /* Last element arch seen. */
2422 for (count = 0; count < orl_count; count++)
2424 unsigned int offset;
2426 if (map[count].u.abfd != last_elt)
2430 struct areltdata *ared = arch_eltdata (current);
2432 firstreal += (ared->parsed_size + ared->extra_size
2433 + sizeof (struct ar_hdr));
2434 firstreal += firstreal % 2;
2435 current = current->archive_next;
2437 while (current != map[count].u.abfd);
2440 /* The archive file format only has 4 bytes to store the offset
2441 of the member. Generate 64-bit archive if an archive is past
2443 offset = (unsigned int) firstreal;
2444 if (firstreal != (file_ptr) offset)
2445 return _bfd_archive_64_bit_write_armap (arch, elength, map,
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))
2490 current = arch->archive_head;
2491 last_elt = current; /* Last element arch seen. */
2492 for (count = 0; count < orl_count; count++)
2494 unsigned int offset;
2495 bfd_byte buf[BSD_SYMDEF_SIZE];
2497 if (map[count].u.abfd != last_elt)
2501 struct areltdata *ared = arch_eltdata (current);
2503 firstreal += (ared->parsed_size + ared->extra_size
2504 + sizeof (struct ar_hdr));
2505 firstreal += firstreal % 2;
2506 current = current->archive_next;
2508 while (current != map[count].u.abfd);
2511 /* The archive file format only has 4 bytes to store the offset
2512 of the member. Check to make sure that firstreal has not grown
2514 offset = (unsigned int) firstreal;
2515 if (firstreal != (file_ptr) offset)
2517 bfd_set_error (bfd_error_file_truncated);
2522 H_PUT_32 (arch, map[count].namidx, buf);
2523 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2524 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2529 /* Now write the strings themselves. */
2530 H_PUT_32 (arch, stringsize, temp);
2531 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2533 for (count = 0; count < orl_count; count++)
2535 size_t len = strlen (*map[count].name) + 1;
2537 if (bfd_bwrite (*map[count].name, len, arch) != len)
2541 /* The spec sez this should be a newline. But in order to be
2542 bug-compatible for sun's ar we use a null. */
2545 if (bfd_bwrite ("", 1, arch) != 1)
2552 /* At the end of archive file handling, update the timestamp in the
2553 file, so the linker will accept it.
2555 Return TRUE if the timestamp was OK, or an unusual problem happened.
2556 Return FALSE if we updated the timestamp. */
2559 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2561 struct stat archstat;
2564 /* If creating deterministic archives, just leave the timestamp as-is. */
2565 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2568 /* Flush writes, get last-write timestamp from file, and compare it
2569 to the timestamp IN the file. */
2571 if (bfd_stat (arch, &archstat) == -1)
2573 bfd_perror (_("Reading archive file mod timestamp"));
2575 /* Can't read mod time for some reason. */
2578 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2579 /* OK by the linker's rules. */
2582 /* Update the timestamp. */
2583 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2585 /* Prepare an ASCII version suitable for writing. */
2586 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2587 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2588 bfd_ardata (arch)->armap_timestamp);
2590 /* Write it into the file. */
2591 bfd_ardata (arch)->armap_datepos = (SARMAG
2592 + offsetof (struct ar_hdr, ar_date[0]));
2593 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2594 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2595 != sizeof (hdr.ar_date)))
2597 bfd_perror (_("Writing updated armap timestamp"));
2599 /* Some error while writing. */
2603 /* We updated the timestamp successfully. */
2607 /* A coff armap looks like :
2609 struct ar_hdr with name = '/'
2611 offset of file for symbol 0
2612 offset of file for symbol 1
2614 offset of file for symbol n-1
2621 _bfd_coff_write_armap (bfd *arch,
2622 unsigned int elength,
2624 unsigned int symbol_count,
2627 /* The size of the ranlib is the number of exported symbols in the
2628 archive * the number of bytes in an int, + an int for the count. */
2629 unsigned int ranlibsize = (symbol_count * 4) + 4;
2630 unsigned int stringsize = stridx;
2631 unsigned int mapsize = stringsize + ranlibsize;
2632 file_ptr archive_member_file_ptr;
2633 file_ptr first_archive_member_file_ptr;
2634 bfd *current = arch->archive_head;
2637 int padit = mapsize & 1;
2642 /* Work out where the first object file will go in the archive. */
2643 first_archive_member_file_ptr = (mapsize
2645 + sizeof (struct ar_hdr)
2649 current = arch->archive_head;
2651 archive_member_file_ptr = first_archive_member_file_ptr;
2652 while (current != NULL && count < symbol_count)
2654 /* For each symbol which is used defined in this object, write
2655 out the object file's address in the archive. */
2657 while (count < symbol_count && map[count].u.abfd == current)
2659 unsigned int offset = (unsigned int) archive_member_file_ptr;
2661 /* Generate 64-bit archive if an archive is past its 4Gb
2663 if (archive_member_file_ptr != (file_ptr) offset)
2664 return _bfd_archive_64_bit_write_armap (arch, elength, map,
2665 symbol_count, stridx);
2668 archive_member_file_ptr += sizeof (struct ar_hdr);
2669 if (! bfd_is_thin_archive (arch))
2671 /* Add size of this archive entry. */
2672 archive_member_file_ptr += arelt_size (current);
2673 /* Remember about the even alignment. */
2674 archive_member_file_ptr += archive_member_file_ptr % 2;
2676 current = current->archive_next;
2680 memset (&hdr, ' ', sizeof (struct ar_hdr));
2681 hdr.ar_name[0] = '/';
2682 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2684 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2685 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2686 ? time (NULL) : 0));
2687 /* This, at least, is what Intel coff sets the values to. */
2688 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2689 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2690 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2691 memcpy (hdr.ar_fmag, ARFMAG, 2);
2693 /* Write the ar header for this item and the number of symbols. */
2694 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2695 != sizeof (struct ar_hdr))
2698 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2701 /* Two passes, first write the file offsets for each symbol -
2702 remembering that each offset is on a two byte boundary. */
2704 /* Write out the file offset for the file associated with each
2705 symbol, and remember to keep the offsets padded out. */
2707 current = arch->archive_head;
2709 archive_member_file_ptr = first_archive_member_file_ptr;
2710 while (current != NULL && count < symbol_count)
2712 /* For each symbol which is used defined in this object, write
2713 out the object file's address in the archive. */
2715 while (count < symbol_count && map[count].u.abfd == current)
2717 unsigned int offset = (unsigned int) archive_member_file_ptr;
2719 /* Catch an attempt to grow an archive past its 4Gb limit. */
2720 if (archive_member_file_ptr != (file_ptr) offset)
2722 bfd_set_error (bfd_error_file_truncated);
2725 if (!bfd_write_bigendian_4byte_int (arch, offset))
2729 archive_member_file_ptr += sizeof (struct ar_hdr);
2730 if (! bfd_is_thin_archive (arch))
2732 /* Add size of this archive entry. */
2733 archive_member_file_ptr += arelt_size (current);
2734 /* Remember about the even alignment. */
2735 archive_member_file_ptr += archive_member_file_ptr % 2;
2737 current = current->archive_next;
2740 /* Now write the strings themselves. */
2741 for (count = 0; count < symbol_count; count++)
2743 size_t len = strlen (*map[count].name) + 1;
2745 if (bfd_bwrite (*map[count].name, len, arch) != len)
2749 /* The spec sez this should be a newline. But in order to be
2750 bug-compatible for arc960 we use a null. */
2753 if (bfd_bwrite ("", 1, arch) != 1)
2761 _bfd_noarchive_write_armap
2762 (bfd *arch ATTRIBUTE_UNUSED,
2763 unsigned int elength ATTRIBUTE_UNUSED,
2764 struct orl *map ATTRIBUTE_UNUSED,
2765 unsigned int orl_count ATTRIBUTE_UNUSED,
2766 int stridx ATTRIBUTE_UNUSED)
2772 archive_close_worker (void **slot, void *inf ATTRIBUTE_UNUSED)
2774 struct ar_cache *ent = (struct ar_cache *) *slot;
2776 bfd_close_all_done (ent->arbfd);
2781 _bfd_unlink_from_archive_parent (bfd *abfd)
2783 if (arch_eltdata (abfd) != NULL)
2785 struct areltdata *ared = arch_eltdata (abfd);
2786 htab_t htab = (htab_t) ared->parent_cache;
2790 struct ar_cache ent;
2793 ent.ptr = ared->key;
2794 slot = htab_find_slot (htab, &ent, NO_INSERT);
2797 BFD_ASSERT (((struct ar_cache *) *slot)->arbfd == abfd);
2798 htab_clear_slot (htab, slot);
2805 _bfd_archive_close_and_cleanup (bfd *abfd)
2807 if (bfd_read_p (abfd) && abfd->format == bfd_archive)
2813 /* Close nested archives (if this bfd is a thin archive). */
2814 for (nbfd = abfd->nested_archives; nbfd; nbfd = next)
2816 next = nbfd->archive_next;
2820 htab = bfd_ardata (abfd)->cache;
2823 htab_traverse_noresize (htab, archive_close_worker, NULL);
2825 bfd_ardata (abfd)->cache = NULL;
2829 _bfd_unlink_from_archive_parent (abfd);
2831 if (abfd->is_linker_output)
2832 (*abfd->link.hash->hash_table_free) (abfd);