1 /* BFD back-end for archive files (libraries).
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
4 2012 Free Software Foundation, Inc.
5 Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
24 @setfilename archive-info
29 An archive (or library) is just another BFD. It has a symbol
30 table, although there's not much a user program will do with it.
32 The big difference between an archive BFD and an ordinary BFD
33 is that the archive doesn't have sections. Instead it has a
34 chain of BFDs that are considered its contents. These BFDs can
35 be manipulated like any other. The BFDs contained in an
36 archive opened for reading will all be opened for reading. You
37 may put either input or output BFDs into an archive opened for
38 output; they will be handled correctly when the archive is closed.
40 Use <<bfd_openr_next_archived_file>> to step through
41 the contents of an archive opened for input. You don't
42 have to read the entire archive if you don't want
43 to! Read it until you find what you want.
45 Archive contents of output BFDs are chained through the
46 <<next>> pointer in a BFD. The first one is findable through
47 the <<archive_head>> slot of the archive. Set it with
48 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only one
49 open output archive at a time.
51 As expected, the BFD archive code is more general than the
52 archive code of any given environment. BFD archives may
53 contain files of different formats (e.g., a.out and coff) and
54 even different architectures. You may even place archives
55 recursively into archives!
57 This can cause unexpected confusion, since some archive
58 formats are more expressive than others. For instance, Intel
59 COFF archives can preserve long filenames; SunOS a.out archives
60 cannot. If you move a file from the first to the second
61 format and back again, the filename may be truncated.
62 Likewise, different a.out environments have different
63 conventions as to how they truncate filenames, whether they
64 preserve directory names in filenames, etc. When
65 interoperating with native tools, be sure your files are
68 Beware: most of these formats do not react well to the
69 presence of spaces in filenames. We do the best we can, but
70 can't always handle this case due to restrictions in the format of
71 archives. Many Unix utilities are braindead in regards to
72 spaces and such in filenames anyway, so this shouldn't be much
75 Archives are supported in BFD in <<archive.c>>.
82 o - all archive elements start on an even boundary, newline padded;
83 o - all arch headers are char *;
84 o - all arch headers are the same size (across architectures).
87 /* Some formats provide a way to cram a long filename into the short
88 (16 chars) space provided by a BSD archive. The trick is: make a
89 special "file" in the front of the archive, sort of like the SYMDEF
90 entry. If the filename is too long to fit, put it in the extended
91 name table, and use its index as the filename. To prevent
92 confusion prepend the index with a space. This means you can't
93 have filenames that start with a space, but then again, many Unix
94 utilities can't handle that anyway.
96 This scheme unfortunately requires that you stand on your head in
97 order to write an archive since you need to put a magic file at the
98 front, and need to touch every entry to do so. C'est la vie.
100 We support two variants of this idea:
101 The SVR4 format (extended name table is named "//"),
102 and an extended pseudo-BSD variant (extended name table is named
103 "ARFILENAMES/"). The origin of the latter format is uncertain.
105 BSD 4.4 uses a third scheme: It writes a long filename
106 directly after the header. This allows 'ar q' to work.
109 /* Summary of archive member names:
111 Symbol table (must be first):
112 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
113 "/ " - Symbol table, system 5 style.
115 Long name table (must be before regular file members):
116 "// " - Long name table, System 5 R4 style.
117 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
119 Regular file members with short names:
120 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
121 "filename.o " - Regular file, Berkeley style (no embedded spaces).
123 Regular files with long names (or embedded spaces, for BSD variants):
124 "/18 " - SVR4 style, name at offset 18 in name table.
125 "#1/23 " - Long name (or embedded spaces) 23 characters long,
126 BSD 4.4 style, full name follows header.
127 " 18 " - Long name 18 characters long, extended pseudo-BSD.
132 #include "libiberty.h"
135 #include "aout/ranlib.h"
136 #include "safe-ctype.h"
138 #include "filenames.h"
144 /* We keep a cache of archive filepointers to archive elements to
145 speed up searching the archive by filepos. We only add an entry to
146 the cache when we actually read one. We also don't sort the cache;
147 it's generally short enough to search linearly.
148 Note that the pointers here point to the front of the ar_hdr, not
149 to the front of the contents! */
156 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
157 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
159 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
160 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
162 /* True iff NAME designated a BSD 4.4 extended name. */
164 #define is_bsd44_extended_name(NAME) \
165 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
168 _bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
173 snprintf (buf, sizeof (buf), fmt, val);
177 memcpy (p, buf, len);
178 memset (p + len, ' ', n - len);
185 _bfd_ar_sizepad (char *p, size_t n, bfd_size_type size)
190 snprintf (buf, sizeof (buf), "%-10" BFD_VMA_FMT "u", size);
194 bfd_set_error (bfd_error_file_too_big);
199 memcpy (p, buf, len);
200 memset (p + len, ' ', n - len);
208 _bfd_generic_mkarchive (bfd *abfd)
210 bfd_size_type amt = sizeof (struct artdata);
212 abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc (abfd, amt);
213 if (bfd_ardata (abfd) == NULL)
216 /* Already cleared by bfd_zalloc above.
217 bfd_ardata (abfd)->cache = NULL;
218 bfd_ardata (abfd)->archive_head = NULL;
219 bfd_ardata (abfd)->symdefs = NULL;
220 bfd_ardata (abfd)->extended_names = NULL;
221 bfd_ardata (abfd)->extended_names_size = 0;
222 bfd_ardata (abfd)->tdata = NULL; */
232 symindex bfd_get_next_mapent
233 (bfd *abfd, symindex previous, carsym **sym);
236 Step through archive @var{abfd}'s symbol table (if it
237 has one). Successively update @var{sym} with the next symbol's
238 information, returning that symbol's (internal) index into the
241 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
242 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
245 A <<carsym>> is a canonical archive symbol. The only
246 user-visible element is its name, a null-terminated string.
250 bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
252 if (!bfd_has_map (abfd))
254 bfd_set_error (bfd_error_invalid_operation);
255 return BFD_NO_MORE_SYMBOLS;
258 if (prev == BFD_NO_MORE_SYMBOLS)
262 if (prev >= bfd_ardata (abfd)->symdef_count)
263 return BFD_NO_MORE_SYMBOLS;
265 *entry = (bfd_ardata (abfd)->symdefs + prev);
269 /* To be called by backends only. */
272 _bfd_create_empty_archive_element_shell (bfd *obfd)
274 return _bfd_new_bfd_contained_in (obfd);
282 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
285 Set the head of the chain of
286 BFDs contained in the archive @var{output} to @var{new_head}.
290 bfd_set_archive_head (bfd *output_archive, bfd *new_head)
292 output_archive->archive_head = new_head;
296 /* Free the archive hash table, if it exists. */
299 _bfd_delete_archive_data (bfd *abfd)
301 struct artdata *ardata = bfd_ardata (abfd);
303 BFD_ASSERT (abfd->format == bfd_archive);
305 if (ardata && ardata->cache)
306 htab_delete (ardata->cache);
310 _bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
312 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
319 struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
330 hash_file_ptr (const void * p)
332 return (hashval_t) (((struct ar_cache *) p)->ptr);
335 /* Returns non-zero if P1 and P2 are equal. */
338 eq_file_ptr (const void * p1, const void * p2)
340 struct ar_cache *arc1 = (struct ar_cache *) p1;
341 struct ar_cache *arc2 = (struct ar_cache *) p2;
342 return arc1->ptr == arc2->ptr;
345 /* The calloc function doesn't always take size_t (e.g. on VMS)
346 so wrap it to avoid a compile time warning. */
349 _bfd_calloc_wrapper (size_t a, size_t b)
351 return calloc (a, b);
354 /* Kind of stupid to call cons for each one, but we don't do too many. */
357 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
359 struct ar_cache *cache;
360 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
362 /* If the hash table hasn't been created, create it. */
363 if (hash_table == NULL)
365 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
366 NULL, _bfd_calloc_wrapper, free);
367 if (hash_table == NULL)
369 bfd_ardata (arch_bfd)->cache = hash_table;
372 /* Insert new_elt into the hash table by filepos. */
373 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
374 cache->ptr = filepos;
375 cache->arbfd = new_elt;
376 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
382 _bfd_find_nested_archive (bfd *arch_bfd, const char *filename)
387 for (abfd = arch_bfd->nested_archives;
389 abfd = abfd->archive_next)
391 if (filename_cmp (filename, abfd->filename) == 0)
395 if (!arch_bfd->target_defaulted)
396 target = arch_bfd->xvec->name;
397 abfd = bfd_openr (filename, target);
400 abfd->archive_next = arch_bfd->nested_archives;
401 arch_bfd->nested_archives = abfd;
406 /* The name begins with space. Hence the rest of the name is an index into
410 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
412 unsigned long table_index = 0;
415 /* Should extract string so that I can guarantee not to overflow into
416 the next region, but I'm too lazy. */
418 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
419 table_index = strtol (name + 1, (char **) &endp, 10);
420 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
422 bfd_set_error (bfd_error_malformed_archive);
425 /* In a thin archive, a member of an archive-within-an-archive
426 will have the offset in the inner archive encoded here. */
427 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
429 file_ptr origin = strtol (endp + 1, NULL, 10);
433 bfd_set_error (bfd_error_malformed_archive);
441 return bfd_ardata (arch)->extended_names + table_index;
444 /* This functions reads an arch header and returns an areltdata pointer, or
447 Presumes the file pointer is already in the right place (ie pointing
448 to the ar_hdr in the file). Moves the file pointer; on success it
449 should be pointing to the front of the file contents; on failure it
450 could have been moved arbitrarily. */
453 _bfd_generic_read_ar_hdr (bfd *abfd)
455 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
458 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
459 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
462 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
465 char *hdrp = (char *) &hdr;
466 bfd_size_type parsed_size;
467 struct areltdata *ared;
468 char *filename = NULL;
469 bfd_size_type namelen = 0;
470 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
473 unsigned int extra_size = 0;
477 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
479 if (bfd_get_error () != bfd_error_system_call)
480 bfd_set_error (bfd_error_no_more_archived_files);
483 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
485 || strncmp (hdr.ar_fmag, mag, 2) != 0))
487 bfd_set_error (bfd_error_malformed_archive);
492 fmag_save = hdr.ar_fmag[0];
494 scan = sscanf (hdr.ar_size, "%" BFD_VMA_FMT "u", &parsed_size);
495 hdr.ar_fmag[0] = fmag_save;
498 bfd_set_error (bfd_error_malformed_archive);
502 /* Extract the filename from the archive - there are two ways to
503 specify an extended name table, either the first char of the
504 name is a space, or it's a slash. */
505 if ((hdr.ar_name[0] == '/'
506 || (hdr.ar_name[0] == ' '
507 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
508 && bfd_ardata (abfd)->extended_names != NULL)
510 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
511 if (filename == NULL)
514 /* BSD4.4-style long filename. */
515 else if (is_bsd44_extended_name (hdr.ar_name))
517 /* BSD-4.4 extended name */
518 namelen = atoi (&hdr.ar_name[3]);
519 allocsize += namelen + 1;
520 parsed_size -= namelen;
521 extra_size = namelen;
523 allocptr = (char *) bfd_zalloc (abfd, allocsize);
524 if (allocptr == NULL)
527 + sizeof (struct areltdata)
528 + sizeof (struct ar_hdr));
529 if (bfd_bread (filename, namelen, abfd) != namelen)
531 if (bfd_get_error () != bfd_error_system_call)
532 bfd_set_error (bfd_error_no_more_archived_files);
535 filename[namelen] = '\0';
539 /* We judge the end of the name by looking for '/' or ' '.
540 Note: The SYSV format (terminated by '/') allows embedded
541 spaces, so only look for ' ' if we don't find '/'. */
544 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
547 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
549 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
553 namelen = e - hdr.ar_name;
556 /* If we didn't find a termination character, then the name
557 must be the entire field. */
558 namelen = ar_maxnamelen (abfd);
561 allocsize += namelen + 1;
566 allocptr = (char *) bfd_zalloc (abfd, allocsize);
567 if (allocptr == NULL)
571 ared = (struct areltdata *) allocptr;
573 ared->arch_header = allocptr + sizeof (struct areltdata);
574 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
575 ared->parsed_size = parsed_size;
576 ared->extra_size = extra_size;
577 ared->origin = origin;
579 if (filename != NULL)
580 ared->filename = filename;
583 ared->filename = allocptr + (sizeof (struct areltdata) +
584 sizeof (struct ar_hdr));
586 memcpy (ared->filename, hdr.ar_name, namelen);
587 ared->filename[namelen] = '\0';
593 /* Append the relative pathname for a member of the thin archive
594 to the pathname of the directory containing the archive. */
597 _bfd_append_relative_path (bfd *arch, char *elt_name)
599 const char *arch_name = arch->filename;
600 const char *base_name = lbasename (arch_name);
604 if (base_name == arch_name)
607 prefix_len = base_name - arch_name;
608 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
609 if (filename == NULL)
612 strncpy (filename, arch_name, prefix_len);
613 strcpy (filename + prefix_len, elt_name);
617 /* This is an internal function; it's mainly used when indexing
618 through the archive symbol table, but also used to get the next
619 element, since it handles the bookkeeping so nicely for us. */
622 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
624 struct areltdata *new_areldata;
628 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
632 if (0 > bfd_seek (archive, filepos, SEEK_SET))
635 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
638 filename = new_areldata->filename;
640 if (bfd_is_thin_archive (archive))
644 /* This is a proxy entry for an external file. */
645 if (! IS_ABSOLUTE_PATH (filename))
647 filename = _bfd_append_relative_path (archive, filename);
648 if (filename == NULL)
652 if (new_areldata->origin > 0)
654 /* This proxy entry refers to an element of a nested archive.
655 Locate the member of that archive and return a bfd for it. */
656 bfd *ext_arch = _bfd_find_nested_archive (archive, filename);
659 || ! bfd_check_format (ext_arch, bfd_archive))
661 bfd_release (archive, new_areldata);
664 n_nfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
667 bfd_release (archive, new_areldata);
670 n_nfd->proxy_origin = bfd_tell (archive);
673 /* It's not an element of a nested archive;
674 open the external file as a bfd. */
676 if (!archive->target_defaulted)
677 target = archive->xvec->name;
678 n_nfd = bfd_openr (filename, target);
680 bfd_set_error (bfd_error_malformed_archive);
684 n_nfd = _bfd_create_empty_archive_element_shell (archive);
689 bfd_release (archive, new_areldata);
693 n_nfd->proxy_origin = bfd_tell (archive);
695 if (bfd_is_thin_archive (archive))
701 n_nfd->origin = n_nfd->proxy_origin;
702 n_nfd->filename = filename;
705 n_nfd->arelt_data = new_areldata;
707 /* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
708 n_nfd->flags |= archive->flags & (BFD_COMPRESS | BFD_DECOMPRESS);
710 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
713 bfd_release (archive, new_areldata);
717 /* Return the BFD which is referenced by the symbol in ABFD indexed by
718 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
721 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
725 entry = bfd_ardata (abfd)->symdefs + sym_index;
726 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
731 bfd_openr_next_archived_file
734 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
737 Provided a BFD, @var{archive}, containing an archive and NULL, open
738 an input BFD on the first contained element and returns that.
739 Subsequent calls should pass
740 the archive and the previous return value to return a created
741 BFD to the next contained element. NULL is returned when there
746 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
748 if ((bfd_get_format (archive) != bfd_archive)
749 || (archive->direction == write_direction))
751 bfd_set_error (bfd_error_invalid_operation);
755 return BFD_SEND (archive,
756 openr_next_archived_file, (archive, last_file));
760 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
765 filestart = bfd_ardata (archive)->first_file_filepos;
768 bfd_size_type size = arelt_size (last_file);
770 filestart = last_file->proxy_origin;
771 if (! bfd_is_thin_archive (archive))
773 /* Pad to an even boundary...
774 Note that last_file->origin can be odd in the case of
775 BSD-4.4-style element with a long odd size. */
776 filestart += filestart % 2;
779 return _bfd_get_elt_at_filepos (archive, filestart);
783 bfd_generic_archive_p (bfd *abfd)
785 struct artdata *tdata_hold;
786 char armag[SARMAG + 1];
789 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
791 if (bfd_get_error () != bfd_error_system_call)
792 bfd_set_error (bfd_error_wrong_format);
796 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
798 if (strncmp (armag, ARMAG, SARMAG) != 0
799 && strncmp (armag, ARMAGB, SARMAG) != 0
800 && ! bfd_is_thin_archive (abfd))
803 tdata_hold = bfd_ardata (abfd);
805 amt = sizeof (struct artdata);
806 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
807 if (bfd_ardata (abfd) == NULL)
809 bfd_ardata (abfd) = tdata_hold;
813 bfd_ardata (abfd)->first_file_filepos = SARMAG;
814 /* Cleared by bfd_zalloc above.
815 bfd_ardata (abfd)->cache = NULL;
816 bfd_ardata (abfd)->archive_head = NULL;
817 bfd_ardata (abfd)->symdefs = NULL;
818 bfd_ardata (abfd)->extended_names = NULL;
819 bfd_ardata (abfd)->extended_names_size = 0;
820 bfd_ardata (abfd)->tdata = NULL; */
822 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
823 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
825 if (bfd_get_error () != bfd_error_system_call)
826 bfd_set_error (bfd_error_wrong_format);
827 bfd_release (abfd, bfd_ardata (abfd));
828 bfd_ardata (abfd) = tdata_hold;
832 if (abfd->target_defaulted && bfd_has_map (abfd))
836 /* This archive has a map, so we may presume that the contents
837 are object files. Make sure that if the first file in the
838 archive can be recognized as an object file, it is for this
839 target. If not, assume that this is the wrong format. If
840 the first file is not an object file, somebody is doing
841 something weird, and we permit it so that ar -t will work.
843 This is done because any normal format will recognize any
844 normal archive, regardless of the format of the object files.
845 We do accept an empty archive. */
847 first = bfd_openr_next_archived_file (abfd, NULL);
850 first->target_defaulted = FALSE;
851 if (bfd_check_format (first, bfd_object)
852 && first->xvec != abfd->xvec)
854 bfd_set_error (bfd_error_wrong_object_format);
855 bfd_ardata (abfd) = tdata_hold;
858 /* And we ought to close `first' here too. */
865 /* Some constants for a 32 bit BSD archive structure. We do not
866 support 64 bit archives presently; so far as I know, none actually
867 exist. Supporting them would require changing these constants, and
868 changing some H_GET_32 to H_GET_64. */
870 /* The size of an external symdef structure. */
871 #define BSD_SYMDEF_SIZE 8
873 /* The offset from the start of a symdef structure to the file offset. */
874 #define BSD_SYMDEF_OFFSET_SIZE 4
876 /* The size of the symdef count. */
877 #define BSD_SYMDEF_COUNT_SIZE 4
879 /* The size of the string count. */
880 #define BSD_STRING_COUNT_SIZE 4
882 /* Read a BSD-style archive symbol table. Returns FALSE on error,
886 do_slurp_bsd_armap (bfd *abfd)
888 struct areltdata *mapdata;
889 unsigned int counter;
890 bfd_byte *raw_armap, *rbase;
891 struct artdata *ardata = bfd_ardata (abfd);
893 bfd_size_type parsed_size, amt;
896 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
899 parsed_size = mapdata->parsed_size;
900 bfd_release (abfd, mapdata); /* Don't need it any more. */
902 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
903 if (raw_armap == NULL)
906 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
908 if (bfd_get_error () != bfd_error_system_call)
909 bfd_set_error (bfd_error_malformed_archive);
911 bfd_release (abfd, raw_armap);
915 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
917 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
918 parsed_size - BSD_SYMDEF_COUNT_SIZE)
920 /* Probably we're using the wrong byte ordering. */
921 bfd_set_error (bfd_error_wrong_format);
926 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
927 stringbase = ((char *) rbase
928 + ardata->symdef_count * BSD_SYMDEF_SIZE
929 + BSD_STRING_COUNT_SIZE);
930 amt = ardata->symdef_count * sizeof (carsym);
931 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
932 if (!ardata->symdefs)
935 for (counter = 0, set = ardata->symdefs;
936 counter < ardata->symdef_count;
937 counter++, set++, rbase += BSD_SYMDEF_SIZE)
939 set->name = H_GET_32 (abfd, rbase) + stringbase;
940 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
943 ardata->first_file_filepos = bfd_tell (abfd);
944 /* Pad to an even boundary if you have to. */
945 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
946 /* FIXME, we should provide some way to free raw_ardata when
947 we are done using the strings from it. For now, it seems
948 to be allocated on an objalloc anyway... */
949 bfd_has_map (abfd) = TRUE;
953 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
957 do_slurp_coff_armap (bfd *abfd)
959 struct areltdata *mapdata;
960 int *raw_armap, *rawptr;
961 struct artdata *ardata = bfd_ardata (abfd);
963 bfd_size_type stringsize;
964 bfd_size_type parsed_size;
966 bfd_size_type nsymz; /* Number of symbols in armap. */
967 bfd_vma (*swap) (const void *);
968 char int_buf[sizeof (long)];
969 bfd_size_type carsym_size, ptrsize;
972 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
975 parsed_size = mapdata->parsed_size;
976 bfd_release (abfd, mapdata); /* Don't need it any more. */
978 if (bfd_bread (int_buf, 4, abfd) != 4)
980 if (bfd_get_error () != bfd_error_system_call)
981 bfd_set_error (bfd_error_malformed_archive);
984 /* It seems that all numeric information in a coff archive is always
985 in big endian format, nomatter the host or target. */
987 nsymz = bfd_getb32 (int_buf);
988 stringsize = parsed_size - (4 * nsymz) - 4;
990 /* ... except that some archive formats are broken, and it may be our
991 fault - the i960 little endian coff sometimes has big and sometimes
992 little, because our tools changed. Here's a horrible hack to clean
995 if (stringsize > 0xfffff
996 && bfd_get_arch (abfd) == bfd_arch_i960
997 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
999 /* This looks dangerous, let's do it the other way around. */
1000 nsymz = bfd_getl32 (int_buf);
1001 stringsize = parsed_size - (4 * nsymz) - 4;
1005 /* The coff armap must be read sequentially. So we construct a
1006 bsd-style one in core all at once, for simplicity. */
1008 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
1011 carsym_size = (nsymz * sizeof (carsym));
1012 ptrsize = (4 * nsymz);
1014 if (carsym_size + stringsize + 1 <= carsym_size)
1017 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
1018 carsym_size + stringsize + 1);
1019 if (ardata->symdefs == NULL)
1021 carsyms = ardata->symdefs;
1022 stringbase = ((char *) ardata->symdefs) + carsym_size;
1024 /* Allocate and read in the raw offsets. */
1025 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
1026 if (raw_armap == NULL)
1027 goto release_symdefs;
1028 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
1029 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
1031 if (bfd_get_error () != bfd_error_system_call)
1032 bfd_set_error (bfd_error_malformed_archive);
1033 goto release_raw_armap;
1036 /* OK, build the carsyms. */
1037 for (i = 0; i < nsymz; i++)
1039 rawptr = raw_armap + i;
1040 carsyms->file_offset = swap ((bfd_byte *) rawptr);
1041 carsyms->name = stringbase;
1042 stringbase += strlen (stringbase) + 1;
1047 ardata->symdef_count = nsymz;
1048 ardata->first_file_filepos = bfd_tell (abfd);
1049 /* Pad to an even boundary if you have to. */
1050 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1052 bfd_has_map (abfd) = TRUE;
1053 bfd_release (abfd, raw_armap);
1055 /* Check for a second archive header (as used by PE). */
1057 struct areltdata *tmp;
1059 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1060 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1063 if (tmp->arch_header[0] == '/'
1064 && tmp->arch_header[1] == ' ')
1066 ardata->first_file_filepos +=
1067 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1069 bfd_release (abfd, tmp);
1076 bfd_release (abfd, raw_armap);
1078 bfd_release (abfd, (ardata)->symdefs);
1082 /* This routine can handle either coff-style or bsd-style armaps
1083 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1086 bfd_slurp_armap (bfd *abfd)
1089 int i = bfd_bread (nextname, 16, abfd);
1096 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1099 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1100 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1101 return do_slurp_bsd_armap (abfd);
1102 else if (CONST_STRNEQ (nextname, "/ "))
1103 return do_slurp_coff_armap (abfd);
1104 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1106 /* 64bit ELF (Irix 6) archive. */
1108 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
1109 return bfd_elf64_archive_slurp_armap (abfd);
1111 bfd_set_error (bfd_error_wrong_format);
1115 else if (CONST_STRNEQ (nextname, "#1/20 "))
1117 /* Mach-O has a special name for armap when the map is sorted by name.
1118 However because this name has a space it is slightly more difficult
1123 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1125 /* Read the extended name. We know its length. */
1126 if (bfd_bread (extname, 20, abfd) != 20)
1128 if (bfd_seek (abfd, -(file_ptr) (sizeof (hdr) + 20), SEEK_CUR) != 0)
1130 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1131 || CONST_STRNEQ (extname, "__.SYMDEF"))
1132 return do_slurp_bsd_armap (abfd);
1135 bfd_has_map (abfd) = FALSE;
1139 /* Returns FALSE on error, TRUE otherwise. */
1140 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1141 header is in a slightly different order and the map name is '/'.
1142 This flavour is used by hp300hpux. */
1144 #define HPUX_SYMDEF_COUNT_SIZE 2
1147 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1149 struct areltdata *mapdata;
1151 unsigned int counter;
1152 bfd_byte *raw_armap, *rbase;
1153 struct artdata *ardata = bfd_ardata (abfd);
1155 unsigned int stringsize;
1159 int i = bfd_bread (nextname, 16, abfd);
1166 /* The archive has at least 16 bytes in it. */
1167 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1170 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1171 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1172 return do_slurp_bsd_armap (abfd);
1174 if (! CONST_STRNEQ (nextname, "/ "))
1176 bfd_has_map (abfd) = FALSE;
1180 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1181 if (mapdata == NULL)
1184 if (mapdata->parsed_size < HPUX_SYMDEF_COUNT_SIZE + BSD_STRING_COUNT_SIZE)
1187 bfd_set_error (bfd_error_wrong_format);
1189 bfd_release (abfd, mapdata);
1192 left = mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE - BSD_STRING_COUNT_SIZE;
1194 amt = mapdata->parsed_size;
1195 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1196 if (raw_armap == NULL)
1199 if (bfd_bread (raw_armap, amt, abfd) != amt)
1201 if (bfd_get_error () != bfd_error_system_call)
1202 bfd_set_error (bfd_error_malformed_archive);
1206 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1210 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1211 if (stringsize > left)
1215 /* Skip sym count and string sz. */
1216 stringbase = ((char *) raw_armap
1217 + HPUX_SYMDEF_COUNT_SIZE
1218 + BSD_STRING_COUNT_SIZE);
1219 rbase = (bfd_byte *) stringbase + stringsize;
1220 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1224 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1225 if (!ardata->symdefs)
1228 for (counter = 0, set = ardata->symdefs;
1229 counter < ardata->symdef_count;
1230 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1232 set->name = H_GET_32 (abfd, rbase) + stringbase;
1233 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1236 ardata->first_file_filepos = bfd_tell (abfd);
1237 /* Pad to an even boundary if you have to. */
1238 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1239 /* FIXME, we should provide some way to free raw_ardata when
1240 we are done using the strings from it. For now, it seems
1241 to be allocated on an objalloc anyway... */
1242 bfd_has_map (abfd) = TRUE;
1246 /** Extended name table.
1248 Normally archives support only 14-character filenames.
1250 Intel has extended the format: longer names are stored in a special
1251 element (the first in the archive, or second if there is an armap);
1252 the name in the ar_hdr is replaced by <space><index into filename
1253 element>. Index is the P.R. of an int (decimal). Data General have
1254 extended the format by using the prefix // for the special element. */
1256 /* Returns FALSE on error, TRUE otherwise. */
1259 _bfd_slurp_extended_name_table (bfd *abfd)
1262 struct areltdata *namedata;
1265 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1266 we probably don't want to return TRUE. */
1267 if (bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET) != 0)
1270 if (bfd_bread (nextname, 16, abfd) == 16)
1272 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1275 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1276 && ! CONST_STRNEQ (nextname, "// "))
1278 bfd_ardata (abfd)->extended_names = NULL;
1279 bfd_ardata (abfd)->extended_names_size = 0;
1283 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1284 if (namedata == NULL)
1287 amt = namedata->parsed_size;
1291 bfd_ardata (abfd)->extended_names_size = amt;
1292 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1293 if (bfd_ardata (abfd)->extended_names == NULL)
1296 bfd_release (abfd, namedata);
1300 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1302 if (bfd_get_error () != bfd_error_system_call)
1303 bfd_set_error (bfd_error_malformed_archive);
1304 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1305 bfd_ardata (abfd)->extended_names = NULL;
1309 /* Since the archive is supposed to be printable if it contains
1310 text, the entries in the list are newline-padded, not null
1311 padded. In SVR4-style archives, the names also have a
1312 trailing '/'. DOS/NT created archive often have \ in them
1313 We'll fix all problems here.. */
1315 char *ext_names = bfd_ardata (abfd)->extended_names;
1316 char *temp = ext_names;
1317 char *limit = temp + namedata->parsed_size;
1318 for (; temp < limit; ++temp)
1320 if (*temp == ARFMAG[1])
1321 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1328 /* Pad to an even boundary if you have to. */
1329 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1330 bfd_ardata (abfd)->first_file_filepos +=
1331 (bfd_ardata (abfd)->first_file_filepos) % 2;
1333 /* FIXME, we can't release namedata here because it was allocated
1334 below extended_names on the objalloc... */
1341 /* Return a copy of the stuff in the filename between any :]> and a
1345 normalize (bfd *abfd, const char *file)
1351 first = file + strlen (file) - 1;
1354 while (first != file)
1358 if (*first == ':' || *first == ']' || *first == '>')
1366 copy = bfd_alloc (abfd, last - first + 1);
1370 memcpy (copy, first, last - first);
1371 copy[last - first] = 0;
1378 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1380 return lbasename (file);
1384 /* Adjust a relative path name based on the reference path.
1387 Relative path Reference path Result
1388 ------------- -------------- ------
1390 foo/bar.o lib.a foo/bar.o
1391 bar.o foo/lib.a ../bar.o
1392 foo/bar.o baz/lib.a ../foo/bar.o
1393 bar.o ../lib.a <parent of current dir>/bar.o
1394 ; ../bar.o ../lib.a bar.o
1395 ; ../bar.o lib.a ../bar.o
1396 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1397 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1398 bar.o foo/baz/lib.a ../../bar.o
1400 Note - the semicolons above are there to prevent the BFD chew
1401 utility from interpreting those lines as prototypes to put into
1402 the autogenerated bfd.h header...
1404 Note - the string is returned in a static buffer. */
1407 adjust_relative_path (const char * path, const char * ref_path)
1409 static char *pathbuf = NULL;
1410 static unsigned int pathbuf_len = 0;
1416 unsigned int dir_up = 0;
1417 unsigned int dir_down = 0;
1419 char * pwd = getpwd ();
1422 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1423 lpath = lrealpath (path);
1424 pathp = lpath == NULL ? path : lpath;
1426 rpath = lrealpath (ref_path);
1427 refp = rpath == NULL ? ref_path : rpath;
1429 /* Remove common leading path elements. */
1432 const char *e1 = pathp;
1433 const char *e2 = refp;
1435 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1437 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1439 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1440 || filename_ncmp (pathp, refp, e1 - pathp) != 0)
1446 len = strlen (pathp) + 1;
1447 /* For each leading path element in the reference path,
1448 insert "../" into the path. */
1449 for (; *refp; ++refp)
1450 if (IS_DIR_SEPARATOR (*refp))
1452 /* PR 12710: If the path element is "../" then instead of
1453 inserting "../" we need to insert the name of the directory
1454 at the current level. */
1455 if (refp > ref_path + 1
1463 /* If the lrealpath calls above succeeded then we should never
1464 see dir_up and dir_down both being non-zero. */
1470 down = pwd + strlen (pwd) - 1;
1472 while (dir_down && down > pwd)
1474 if (IS_DIR_SEPARATOR (*down))
1477 BFD_ASSERT (dir_down == 0);
1478 len += strlen (down) + 1;
1483 if (len > pathbuf_len)
1485 if (pathbuf != NULL)
1488 pathbuf = (char *) bfd_malloc (len);
1489 if (pathbuf == NULL)
1495 while (dir_up-- > 0)
1497 /* FIXME: Support Windows style path separators as well. */
1498 strcpy (newp, "../");
1503 sprintf (newp, "%s/%s", down, pathp);
1505 strcpy (newp, pathp);
1513 /* Build a BFD style extended name table. */
1516 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1518 bfd_size_type *tablen,
1521 *name = "ARFILENAMES/";
1522 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1525 /* Build an SVR4 style extended name table. */
1528 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1530 bfd_size_type *tablen,
1534 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1537 /* Follows archive_head and produces an extended name table if
1538 necessary. Returns (in tabloc) a pointer to an extended name
1539 table, and in tablen the length of the table. If it makes an entry
1540 it clobbers the filename so that the element may be written without
1541 further massage. Returns TRUE if it ran successfully, FALSE if
1542 something went wrong. A successful return may still involve a
1543 zero-length tablen! */
1546 _bfd_construct_extended_name_table (bfd *abfd,
1547 bfd_boolean trailing_slash,
1549 bfd_size_type *tablen)
1551 unsigned int maxname = ar_maxnamelen (abfd);
1552 bfd_size_type total_namelen = 0;
1555 const char *last_filename;
1559 last_filename = NULL;
1561 /* Figure out how long the table should be. */
1562 for (current = abfd->archive_head;
1564 current = current->archive_next)
1567 unsigned int thislen;
1569 if (bfd_is_thin_archive (abfd))
1571 const char *filename = current->filename;
1573 /* If the element being added is a member of another archive
1574 (i.e., we are flattening), use the containing archive's name. */
1575 if (current->my_archive
1576 && ! bfd_is_thin_archive (current->my_archive))
1577 filename = current->my_archive->filename;
1579 /* If the path is the same as the previous path seen,
1580 reuse it. This can happen when flattening a thin
1581 archive that contains other archives. */
1582 if (last_filename && filename_cmp (last_filename, filename) == 0)
1585 last_filename = filename;
1587 /* If the path is relative, adjust it relative to
1588 the containing archive. */
1589 if (! IS_ABSOLUTE_PATH (filename)
1590 && ! IS_ABSOLUTE_PATH (abfd->filename))
1591 normal = adjust_relative_path (filename, abfd->filename);
1595 /* In a thin archive, always store the full pathname
1596 in the extended name table. */
1597 total_namelen += strlen (normal) + 1;
1599 /* Leave room for trailing slash. */
1605 normal = normalize (current, current->filename);
1609 thislen = strlen (normal);
1611 if (thislen > maxname
1612 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1615 if (thislen > maxname)
1617 /* Add one to leave room for \n. */
1618 total_namelen += thislen + 1;
1621 /* Leave room for trailing slash. */
1627 struct ar_hdr *hdr = arch_hdr (current);
1628 if (filename_ncmp (normal, hdr->ar_name, thislen) != 0
1629 || (thislen < sizeof hdr->ar_name
1630 && hdr->ar_name[thislen] != ar_padchar (current)))
1632 /* Must have been using extended format even though it
1633 didn't need to. Fix it to use normal format. */
1634 memcpy (hdr->ar_name, normal, thislen);
1635 if (thislen < maxname
1636 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1637 hdr->ar_name[thislen] = ar_padchar (current);
1642 if (total_namelen == 0)
1645 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1646 if (*tabloc == NULL)
1649 *tablen = total_namelen;
1652 last_filename = NULL;
1655 for (current = abfd->archive_head;
1657 current = current->archive_next)
1660 unsigned int thislen;
1662 const char *filename = current->filename;
1664 if (bfd_is_thin_archive (abfd))
1666 /* If the element being added is a member of another archive
1667 (i.e., we are flattening), use the containing archive's name. */
1668 if (current->my_archive
1669 && ! bfd_is_thin_archive (current->my_archive))
1670 filename = current->my_archive->filename;
1671 /* If the path is the same as the previous path seen,
1672 reuse it. This can happen when flattening a thin
1673 archive that contains other archives.
1674 If the path is relative, adjust it relative to
1675 the containing archive. */
1676 if (last_filename && filename_cmp (last_filename, filename) == 0)
1677 normal = last_filename;
1678 else if (! IS_ABSOLUTE_PATH (filename)
1679 && ! IS_ABSOLUTE_PATH (abfd->filename))
1680 normal = adjust_relative_path (filename, abfd->filename);
1686 normal = normalize (current, filename);
1691 thislen = strlen (normal);
1692 if (thislen > maxname || bfd_is_thin_archive (abfd))
1694 /* Works for now; may need to be re-engineered if we
1695 encounter an oddball archive format and want to
1696 generalise this hack. */
1697 struct ar_hdr *hdr = arch_hdr (current);
1698 if (normal == last_filename)
1699 stroff = last_stroff;
1702 strcpy (strptr, normal);
1703 if (! trailing_slash)
1704 strptr[thislen] = ARFMAG[1];
1707 strptr[thislen] = '/';
1708 strptr[thislen + 1] = ARFMAG[1];
1710 stroff = strptr - *tabloc;
1711 last_stroff = stroff;
1713 hdr->ar_name[0] = ar_padchar (current);
1714 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1716 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1718 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1720 current->origin - sizeof (struct ar_hdr));
1723 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1724 if (normal != last_filename)
1726 strptr += thislen + 1;
1729 last_filename = filename;
1737 /* Do not construct an extended name table but transforms name field into
1738 its extended form. */
1741 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1743 bfd_size_type *tablen,
1746 unsigned int maxname = ar_maxnamelen (abfd);
1753 for (current = abfd->archive_head;
1755 current = current->archive_next)
1757 const char *normal = normalize (current, current->filename);
1764 for (len = 0; normal[len]; len++)
1765 if (normal[len] == ' ')
1768 if (len > maxname || has_space)
1770 struct ar_hdr *hdr = arch_hdr (current);
1772 len = (len + 3) & ~3;
1773 arch_eltdata (current)->extra_size = len;
1774 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1781 /* Write an archive header. */
1784 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1786 struct ar_hdr *hdr = arch_hdr (abfd);
1788 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1793 /* Write an archive header using BSD4.4 convention. */
1796 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1798 struct ar_hdr *hdr = arch_hdr (abfd);
1800 if (is_bsd44_extended_name (hdr->ar_name))
1802 /* This is a BSD 4.4 extended name. */
1803 const char *fullname = normalize (abfd, abfd->filename);
1804 unsigned int len = strlen (fullname);
1805 unsigned int padded_len = (len + 3) & ~3;
1807 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1809 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size),
1810 arch_eltdata (abfd)->parsed_size + padded_len))
1813 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1816 if (bfd_bwrite (fullname, len, archive) != len)
1821 static const char pad[3] = { 0, 0, 0 };
1823 len = 4 - (len & 3);
1824 if (bfd_bwrite (pad, len, archive) != len)
1830 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1836 /* A couple of functions for creating ar_hdrs. */
1838 #ifdef HPUX_LARGE_AR_IDS
1839 /* Function to encode large UID/GID values according to HP. */
1842 hpux_uid_gid_encode (char str[6], long int id)
1846 str[5] = '@' + (id & 3);
1849 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1850 str[cnt] = ' ' + (id & 0x3f);
1852 #endif /* HPUX_LARGE_AR_IDS */
1862 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1863 make one. The filename must refer to a filename in the filesystem.
1864 The filename field of the ar_hdr will NOT be initialized. If member
1865 is set, and it's an in-memory bfd, we fake it. */
1867 static struct areltdata *
1868 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1871 struct areltdata *ared;
1875 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1877 /* Assume we just "made" the member, and fake it. */
1878 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1879 time (&status.st_mtime);
1880 status.st_uid = getuid ();
1881 status.st_gid = getgid ();
1882 status.st_mode = 0644;
1883 status.st_size = bim->size;
1885 else if (stat (filename, &status) != 0)
1887 bfd_set_error (bfd_error_system_call);
1891 /* If the caller requested that the BFD generate deterministic output,
1892 fake values for modification time, UID, GID, and file mode. */
1893 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1895 status.st_mtime = 0;
1898 status.st_mode = 0644;
1901 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1902 ared = (struct areltdata *) bfd_zalloc (abfd, amt);
1905 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1907 /* ar headers are space padded, not null padded! */
1908 memset (hdr, ' ', sizeof (struct ar_hdr));
1910 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1912 #ifdef HPUX_LARGE_AR_IDS
1913 /* HP has a very "special" way to handle UID/GID's with numeric values
1915 if (status.st_uid > 99999)
1916 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1919 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1921 #ifdef HPUX_LARGE_AR_IDS
1922 /* HP has a very "special" way to handle UID/GID's with numeric values
1924 if (status.st_gid > 99999)
1925 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1928 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1930 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1932 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size), status.st_size))
1937 memcpy (hdr->ar_fmag, ARFMAG, 2);
1938 ared->parsed_size = status.st_size;
1939 ared->arch_header = (char *) hdr;
1944 /* Analogous to stat call. */
1947 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1952 if (abfd->arelt_data == NULL)
1954 bfd_set_error (bfd_error_invalid_operation);
1958 hdr = arch_hdr (abfd);
1960 #define foo(arelt, stelt, size) \
1961 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1962 if (aloser == hdr->arelt) \
1965 /* Some platforms support special notations for large IDs. */
1966 #ifdef HPUX_LARGE_AR_IDS
1967 # define foo2(arelt, stelt, size) \
1968 if (hdr->arelt[5] == ' ') \
1970 foo (arelt, stelt, size); \
1975 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1977 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1980 buf->stelt += hdr->arelt[cnt] - ' '; \
1982 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1985 buf->stelt += hdr->arelt[5] - '@'; \
1988 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1991 foo (ar_date, st_mtime, 10);
1992 foo2 (ar_uid, st_uid, 10);
1993 foo2 (ar_gid, st_gid, 10);
1994 foo (ar_mode, st_mode, 8);
1996 buf->st_size = arch_eltdata (abfd)->parsed_size;
2002 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2004 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2005 Fortunately ic960 users will never use that option. Fixing this
2006 is very hard; fortunately I know how to do it and will do so once
2007 intel's release is out the door. */
2009 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2011 const char *filename;
2012 size_t maxlen = ar_maxnamelen (abfd);
2014 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
2016 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
2020 filename = normalize (abfd, pathname);
2021 if (filename == NULL)
2027 length = strlen (filename);
2029 if (length <= maxlen)
2030 memcpy (hdr->ar_name, filename, length);
2032 /* Add the padding character if there is room for it. */
2034 || (length == maxlen && length < sizeof hdr->ar_name))
2035 (hdr->ar_name)[length] = ar_padchar (abfd);
2039 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2041 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2043 const char *filename = lbasename (pathname);
2044 size_t maxlen = ar_maxnamelen (abfd);
2046 length = strlen (filename);
2048 if (length <= maxlen)
2049 memcpy (hdr->ar_name, filename, length);
2052 /* pathname: meet procrustes */
2053 memcpy (hdr->ar_name, filename, maxlen);
2057 if (length < maxlen)
2058 (hdr->ar_name)[length] = ar_padchar (abfd);
2061 /* Store name into ar header. Truncates the name to fit.
2062 1> strip pathname to be just the basename.
2063 2> if it's short enuf to fit, stuff it in.
2064 3> If it doesn't end with .o, truncate it to fit
2065 4> truncate it before the .o, append .o, stuff THAT in. */
2067 /* This is what gnu ar does. It's better but incompatible with the
2071 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2073 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2075 const char *filename = lbasename (pathname);
2076 size_t maxlen = ar_maxnamelen (abfd);
2078 length = strlen (filename);
2080 if (length <= maxlen)
2081 memcpy (hdr->ar_name, filename, length);
2084 /* pathname: meet procrustes. */
2085 memcpy (hdr->ar_name, filename, maxlen);
2086 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
2088 hdr->ar_name[maxlen - 2] = '.';
2089 hdr->ar_name[maxlen - 1] = 'o';
2095 (hdr->ar_name)[length] = ar_padchar (abfd);
2098 /* The BFD is open for write and has its format set to bfd_archive. */
2101 _bfd_write_archive_contents (bfd *arch)
2104 char *etable = NULL;
2105 bfd_size_type elength = 0;
2106 const char *ename = NULL;
2107 bfd_boolean makemap = bfd_has_map (arch);
2108 /* If no .o's, don't bother to make a map. */
2109 bfd_boolean hasobjects = FALSE;
2110 bfd_size_type wrote;
2114 /* Verify the viability of all entries; if any of them live in the
2115 filesystem (as opposed to living in an archive open for input)
2116 then construct a fresh ar_hdr for them. */
2117 for (current = arch->archive_head;
2119 current = current->archive_next)
2121 /* This check is checking the bfds for the objects we're reading
2122 from (which are usually either an object file or archive on
2123 disk), not the archive entries we're writing to. We don't
2124 actually create bfds for the archive members, we just copy
2125 them byte-wise when we write out the archive. */
2126 if (bfd_write_p (current))
2128 bfd_set_error (bfd_error_invalid_operation);
2131 if (!current->arelt_data)
2133 current->arelt_data =
2134 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2135 if (!current->arelt_data)
2138 /* Put in the file name. */
2139 BFD_SEND (arch, _bfd_truncate_arname,
2140 (arch, current->filename, (char *) arch_hdr (current)));
2143 if (makemap && ! hasobjects)
2144 { /* Don't bother if we won't make a map! */
2145 if ((bfd_check_format (current, bfd_object)))
2150 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2151 (arch, &etable, &elength, &ename)))
2154 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2157 if (bfd_is_thin_archive (arch))
2159 wrote = bfd_bwrite (armag, SARMAG, arch);
2160 if (wrote != SARMAG)
2163 if (makemap && hasobjects)
2165 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2173 memset (&hdr, ' ', sizeof (struct ar_hdr));
2174 memcpy (hdr.ar_name, ename, strlen (ename));
2175 /* Round size up to even number in archive header. */
2176 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size),
2177 (elength + 1) & ~(bfd_size_type) 1))
2179 memcpy (hdr.ar_fmag, ARFMAG, 2);
2180 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2181 != sizeof (struct ar_hdr))
2182 || bfd_bwrite (etable, elength, arch) != elength)
2184 if ((elength % 2) == 1)
2186 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2191 for (current = arch->archive_head;
2193 current = current->archive_next)
2195 char buffer[DEFAULT_BUFFERSIZE];
2196 bfd_size_type remaining = arelt_size (current);
2198 /* Write ar header. */
2199 if (!_bfd_write_ar_hdr (arch, current))
2201 if (bfd_is_thin_archive (arch))
2203 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2208 unsigned int amt = DEFAULT_BUFFERSIZE;
2210 if (amt > remaining)
2213 if (bfd_bread (buffer, amt, current) != amt)
2215 if (bfd_get_error () != bfd_error_system_call)
2216 bfd_set_error (bfd_error_file_truncated);
2219 if (bfd_bwrite (buffer, amt, arch) != amt)
2224 if ((arelt_size (current) % 2) == 1)
2226 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2231 if (makemap && hasobjects)
2233 /* Verify the timestamp in the archive file. If it would not be
2234 accepted by the linker, rewrite it until it would be. If
2235 anything odd happens, break out and just return. (The
2236 Berkeley linker checks the timestamp and refuses to read the
2237 table-of-contents if it is >60 seconds less than the file's
2238 modified-time. That painful hack requires this painful hack. */
2242 if (bfd_update_armap_timestamp (arch))
2244 (*_bfd_error_handler)
2245 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2247 while (++tries < 6);
2253 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2257 /* Note that the namidx for the first symbol is 0. */
2260 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2262 char *first_name = NULL;
2264 file_ptr elt_no = 0;
2265 struct orl *map = NULL;
2266 unsigned int orl_max = 1024; /* Fine initial default. */
2267 unsigned int orl_count = 0;
2269 asymbol **syms = NULL;
2274 /* Dunno if this is the best place for this info... */
2276 elength += sizeof (struct ar_hdr);
2277 elength += elength % 2;
2279 amt = orl_max * sizeof (struct orl);
2280 map = (struct orl *) bfd_malloc (amt);
2284 /* We put the symbol names on the arch objalloc, and then discard
2286 first_name = (char *) bfd_alloc (arch, 1);
2287 if (first_name == NULL)
2290 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2291 while (arch->archive_head
2292 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2293 arch->archive_head = arch->archive_head->archive_next;
2295 /* Map over each element. */
2296 for (current = arch->archive_head;
2298 current = current->archive_next, elt_no++)
2300 if (bfd_check_format (current, bfd_object)
2301 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2307 storage = bfd_get_symtab_upper_bound (current);
2313 if (storage > syms_max)
2318 syms = (asymbol **) bfd_malloc (syms_max);
2322 symcount = bfd_canonicalize_symtab (current, syms);
2326 /* Now map over all the symbols, picking out the ones we
2328 for (src_count = 0; src_count < symcount; src_count++)
2330 flagword flags = (syms[src_count])->flags;
2331 asection *sec = syms[src_count]->section;
2333 if (((flags & (BSF_GLOBAL
2336 | BSF_GNU_UNIQUE)) != 0
2337 || bfd_is_com_section (sec))
2338 && ! bfd_is_und_section (sec))
2340 bfd_size_type namelen;
2341 struct orl *new_map;
2343 /* This symbol will go into the archive header. */
2344 if (orl_count == orl_max)
2347 amt = orl_max * sizeof (struct orl);
2348 new_map = (struct orl *) bfd_realloc (map, amt);
2349 if (new_map == NULL)
2355 namelen = strlen (syms[src_count]->name);
2356 amt = sizeof (char *);
2357 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2358 if (map[orl_count].name == NULL)
2360 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2362 if (*(map[orl_count].name) == NULL)
2364 strcpy (*(map[orl_count].name), syms[src_count]->name);
2365 map[orl_count].u.abfd = current;
2366 map[orl_count].namidx = stridx;
2368 stridx += namelen + 1;
2374 /* Now ask the BFD to free up any cached information, so we
2375 don't fill all of memory with symbol tables. */
2376 if (! bfd_free_cached_info (current))
2381 /* OK, now we have collected all the data, let's write them out. */
2382 ret = BFD_SEND (arch, write_armap,
2383 (arch, elength, map, orl_count, stridx));
2389 if (first_name != NULL)
2390 bfd_release (arch, first_name);
2399 if (first_name != NULL)
2400 bfd_release (arch, first_name);
2406 bsd_write_armap (bfd *arch,
2407 unsigned int elength,
2409 unsigned int orl_count,
2412 int padit = stridx & 1;
2413 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2414 unsigned int stringsize = stridx + padit;
2415 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2416 unsigned int mapsize = ranlibsize + stringsize + 8;
2418 bfd *current = arch->archive_head;
2419 bfd *last_elt = current; /* Last element arch seen. */
2424 file_ptr max_first_real = 1;
2426 max_first_real <<= 31;
2428 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2430 /* If deterministic, we use 0 as the timestamp in the map.
2431 Some linkers may require that the archive filesystem modification
2432 time is less than (or near to) the archive map timestamp. Those
2433 linkers should not be used with deterministic mode. (GNU ld and
2434 Gold do not have this restriction.) */
2435 bfd_ardata (arch)->armap_timestamp = 0;
2438 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2440 struct stat statbuf;
2442 if (stat (arch->filename, &statbuf) == 0)
2443 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2444 + ARMAP_TIME_OFFSET);
2449 memset (&hdr, ' ', sizeof (struct ar_hdr));
2450 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2451 bfd_ardata (arch)->armap_datepos = (SARMAG
2452 + offsetof (struct ar_hdr, ar_date[0]));
2453 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2454 bfd_ardata (arch)->armap_timestamp);
2455 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2456 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2457 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2459 memcpy (hdr.ar_fmag, ARFMAG, 2);
2460 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2461 != sizeof (struct ar_hdr))
2463 H_PUT_32 (arch, ranlibsize, temp);
2464 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2467 for (count = 0; count < orl_count; count++)
2469 bfd_byte buf[BSD_SYMDEF_SIZE];
2471 if (map[count].u.abfd != last_elt)
2475 struct areltdata *ared = arch_eltdata (current);
2477 firstreal += (ared->parsed_size + ared->extra_size
2478 + sizeof (struct ar_hdr));
2479 firstreal += firstreal % 2;
2480 current = current->archive_next;
2482 while (current != map[count].u.abfd);
2485 /* The archive file format only has 4 bytes to store the offset
2486 of the member. Check to make sure that firstreal has not grown
2488 if (firstreal >= max_first_real)
2490 bfd_set_error (bfd_error_file_truncated);
2495 H_PUT_32 (arch, map[count].namidx, buf);
2496 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2497 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2502 /* Now write the strings themselves. */
2503 H_PUT_32 (arch, stringsize, temp);
2504 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2506 for (count = 0; count < orl_count; count++)
2508 size_t len = strlen (*map[count].name) + 1;
2510 if (bfd_bwrite (*map[count].name, len, arch) != len)
2514 /* The spec sez this should be a newline. But in order to be
2515 bug-compatible for sun's ar we use a null. */
2518 if (bfd_bwrite ("", 1, arch) != 1)
2525 /* At the end of archive file handling, update the timestamp in the
2526 file, so the linker will accept it.
2528 Return TRUE if the timestamp was OK, or an unusual problem happened.
2529 Return FALSE if we updated the timestamp. */
2532 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2534 struct stat archstat;
2537 /* If creating deterministic archives, just leave the timestamp as-is. */
2538 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2541 /* Flush writes, get last-write timestamp from file, and compare it
2542 to the timestamp IN the file. */
2544 if (bfd_stat (arch, &archstat) == -1)
2546 bfd_perror (_("Reading archive file mod timestamp"));
2548 /* Can't read mod time for some reason. */
2551 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2552 /* OK by the linker's rules. */
2555 /* Update the timestamp. */
2556 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2558 /* Prepare an ASCII version suitable for writing. */
2559 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2560 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2561 bfd_ardata (arch)->armap_timestamp);
2563 /* Write it into the file. */
2564 bfd_ardata (arch)->armap_datepos = (SARMAG
2565 + offsetof (struct ar_hdr, ar_date[0]));
2566 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2567 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2568 != sizeof (hdr.ar_date)))
2570 bfd_perror (_("Writing updated armap timestamp"));
2572 /* Some error while writing. */
2576 /* We updated the timestamp successfully. */
2580 /* A coff armap looks like :
2582 struct ar_hdr with name = '/'
2584 offset of file for symbol 0
2585 offset of file for symbol 1
2587 offset of file for symbol n-1
2594 coff_write_armap (bfd *arch,
2595 unsigned int elength,
2597 unsigned int symbol_count,
2600 /* The size of the ranlib is the number of exported symbols in the
2601 archive * the number of bytes in an int, + an int for the count. */
2602 unsigned int ranlibsize = (symbol_count * 4) + 4;
2603 unsigned int stringsize = stridx;
2604 unsigned int mapsize = stringsize + ranlibsize;
2605 file_ptr archive_member_file_ptr;
2606 bfd *current = arch->archive_head;
2609 int padit = mapsize & 1;
2614 /* Work out where the first object file will go in the archive. */
2615 archive_member_file_ptr = (mapsize
2617 + sizeof (struct ar_hdr)
2620 memset (&hdr, ' ', sizeof (struct ar_hdr));
2621 hdr.ar_name[0] = '/';
2622 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2624 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2625 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2626 ? time (NULL) : 0));
2627 /* This, at least, is what Intel coff sets the values to. */
2628 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2629 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2630 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2631 memcpy (hdr.ar_fmag, ARFMAG, 2);
2633 /* Write the ar header for this item and the number of symbols. */
2634 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2635 != sizeof (struct ar_hdr))
2638 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2641 /* Two passes, first write the file offsets for each symbol -
2642 remembering that each offset is on a two byte boundary. */
2644 /* Write out the file offset for the file associated with each
2645 symbol, and remember to keep the offsets padded out. */
2647 current = arch->archive_head;
2649 while (current != NULL && count < symbol_count)
2651 /* For each symbol which is used defined in this object, write
2652 out the object file's address in the archive. */
2654 while (count < symbol_count && map[count].u.abfd == current)
2656 unsigned int offset = (unsigned int) archive_member_file_ptr;
2658 /* Catch an attempt to grow an archive past its 4Gb limit. */
2659 if (archive_member_file_ptr != (file_ptr) offset)
2661 bfd_set_error (bfd_error_file_truncated);
2664 if (!bfd_write_bigendian_4byte_int (arch, offset))
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;
2679 /* Now write the strings themselves. */
2680 for (count = 0; count < symbol_count; count++)
2682 size_t len = strlen (*map[count].name) + 1;
2684 if (bfd_bwrite (*map[count].name, len, arch) != len)
2688 /* The spec sez this should be a newline. But in order to be
2689 bug-compatible for arc960 we use a null. */
2692 if (bfd_bwrite ("", 1, arch) != 1)