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 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! */
155 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
156 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
158 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
159 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
161 /* True iff NAME designated a BSD 4.4 extended name. */
163 #define is_bsd44_extended_name(NAME) \
164 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
167 _bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
171 snprintf (buf, sizeof (buf), fmt, val);
175 memcpy (p, buf, len);
176 memset (p + len, ' ', n - len);
183 _bfd_generic_mkarchive (bfd *abfd)
185 bfd_size_type amt = sizeof (struct artdata);
187 abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc (abfd, amt);
188 if (bfd_ardata (abfd) == NULL)
191 /* Already cleared by bfd_zalloc above.
192 bfd_ardata (abfd)->cache = NULL;
193 bfd_ardata (abfd)->archive_head = NULL;
194 bfd_ardata (abfd)->symdefs = NULL;
195 bfd_ardata (abfd)->extended_names = NULL;
196 bfd_ardata (abfd)->extended_names_size = 0;
197 bfd_ardata (abfd)->tdata = NULL; */
207 symindex bfd_get_next_mapent
208 (bfd *abfd, symindex previous, carsym **sym);
211 Step through archive @var{abfd}'s symbol table (if it
212 has one). Successively update @var{sym} with the next symbol's
213 information, returning that symbol's (internal) index into the
216 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
217 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
220 A <<carsym>> is a canonical archive symbol. The only
221 user-visible element is its name, a null-terminated string.
225 bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
227 if (!bfd_has_map (abfd))
229 bfd_set_error (bfd_error_invalid_operation);
230 return BFD_NO_MORE_SYMBOLS;
233 if (prev == BFD_NO_MORE_SYMBOLS)
237 if (prev >= bfd_ardata (abfd)->symdef_count)
238 return BFD_NO_MORE_SYMBOLS;
240 *entry = (bfd_ardata (abfd)->symdefs + prev);
244 /* To be called by backends only. */
247 _bfd_create_empty_archive_element_shell (bfd *obfd)
249 return _bfd_new_bfd_contained_in (obfd);
257 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
260 Set the head of the chain of
261 BFDs contained in the archive @var{output} to @var{new_head}.
265 bfd_set_archive_head (bfd *output_archive, bfd *new_head)
267 output_archive->archive_head = new_head;
272 _bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
274 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
280 struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
291 hash_file_ptr (const PTR p)
293 return (hashval_t) (((struct ar_cache *) p)->ptr);
296 /* Returns non-zero if P1 and P2 are equal. */
299 eq_file_ptr (const PTR p1, const PTR p2)
301 struct ar_cache *arc1 = (struct ar_cache *) p1;
302 struct ar_cache *arc2 = (struct ar_cache *) p2;
303 return arc1->ptr == arc2->ptr;
306 /* The calloc function doesn't always take size_t (e.g. on VMS)
307 so wrap it to avoid a compile time warning. */
310 _bfd_calloc_wrapper (size_t a, size_t b)
312 return calloc (a, b);
315 /* Kind of stupid to call cons for each one, but we don't do too many. */
318 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
320 struct ar_cache *cache;
321 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
323 /* If the hash table hasn't been created, create it. */
324 if (hash_table == NULL)
326 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
327 NULL, _bfd_calloc_wrapper, free);
328 if (hash_table == NULL)
330 bfd_ardata (arch_bfd)->cache = hash_table;
333 /* Insert new_elt into the hash table by filepos. */
334 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
335 cache->ptr = filepos;
336 cache->arbfd = new_elt;
337 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
343 _bfd_find_nested_archive (bfd *arch_bfd, const char *filename)
347 for (abfd = arch_bfd->nested_archives;
349 abfd = abfd->archive_next)
351 if (strcmp (filename, abfd->filename) == 0)
354 abfd = bfd_openr (filename, NULL);
357 abfd->archive_next = arch_bfd->nested_archives;
358 arch_bfd->nested_archives = abfd;
363 /* The name begins with space. Hence the rest of the name is an index into
367 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
369 unsigned long table_index = 0;
372 /* Should extract string so that I can guarantee not to overflow into
373 the next region, but I'm too lazy. */
375 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
376 table_index = strtol (name + 1, (char **) &endp, 10);
377 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
379 bfd_set_error (bfd_error_malformed_archive);
382 /* In a thin archive, a member of an archive-within-an-archive
383 will have the offset in the inner archive encoded here. */
384 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
386 file_ptr origin = strtol (endp + 1, NULL, 10);
390 bfd_set_error (bfd_error_malformed_archive);
398 return bfd_ardata (arch)->extended_names + table_index;
401 /* This functions reads an arch header and returns an areltdata pointer, or
404 Presumes the file pointer is already in the right place (ie pointing
405 to the ar_hdr in the file). Moves the file pointer; on success it
406 should be pointing to the front of the file contents; on failure it
407 could have been moved arbitrarily. */
410 _bfd_generic_read_ar_hdr (bfd *abfd)
412 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
415 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
416 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
419 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
422 char *hdrp = (char *) &hdr;
424 struct areltdata *ared;
425 char *filename = NULL;
426 bfd_size_type namelen = 0;
427 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
430 unsigned int extra_size = 0;
432 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
434 if (bfd_get_error () != bfd_error_system_call)
435 bfd_set_error (bfd_error_no_more_archived_files);
438 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
440 || strncmp (hdr.ar_fmag, mag, 2) != 0))
442 bfd_set_error (bfd_error_malformed_archive);
447 parsed_size = strtol (hdr.ar_size, NULL, 10);
450 bfd_set_error (bfd_error_malformed_archive);
454 /* Extract the filename from the archive - there are two ways to
455 specify an extended name table, either the first char of the
456 name is a space, or it's a slash. */
457 if ((hdr.ar_name[0] == '/'
458 || (hdr.ar_name[0] == ' '
459 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
460 && bfd_ardata (abfd)->extended_names != NULL)
462 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
463 if (filename == NULL)
466 /* BSD4.4-style long filename. */
467 else if (is_bsd44_extended_name (hdr.ar_name))
469 /* BSD-4.4 extended name */
470 namelen = atoi (&hdr.ar_name[3]);
471 allocsize += namelen + 1;
472 parsed_size -= namelen;
473 extra_size = namelen;
475 allocptr = (char *) bfd_zalloc (abfd, allocsize);
476 if (allocptr == NULL)
479 + sizeof (struct areltdata)
480 + sizeof (struct ar_hdr));
481 if (bfd_bread (filename, namelen, abfd) != namelen)
483 if (bfd_get_error () != bfd_error_system_call)
484 bfd_set_error (bfd_error_no_more_archived_files);
487 filename[namelen] = '\0';
491 /* We judge the end of the name by looking for '/' or ' '.
492 Note: The SYSV format (terminated by '/') allows embedded
493 spaces, so only look for ' ' if we don't find '/'. */
496 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
499 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
501 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
505 namelen = e - hdr.ar_name;
508 /* If we didn't find a termination character, then the name
509 must be the entire field. */
510 namelen = ar_maxnamelen (abfd);
513 allocsize += namelen + 1;
518 allocptr = (char *) bfd_zalloc (abfd, allocsize);
519 if (allocptr == NULL)
523 ared = (struct areltdata *) allocptr;
525 ared->arch_header = allocptr + sizeof (struct areltdata);
526 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
527 ared->parsed_size = parsed_size;
528 ared->extra_size = extra_size;
529 ared->origin = origin;
531 if (filename != NULL)
532 ared->filename = filename;
535 ared->filename = allocptr + (sizeof (struct areltdata) +
536 sizeof (struct ar_hdr));
538 memcpy (ared->filename, hdr.ar_name, namelen);
539 ared->filename[namelen] = '\0';
545 /* Append the relative pathname for a member of the thin archive
546 to the pathname of the directory containing the archive. */
549 _bfd_append_relative_path (bfd *arch, char *elt_name)
551 const char *arch_name = arch->filename;
552 const char *base_name = lbasename (arch_name);
556 if (base_name == arch_name)
559 prefix_len = base_name - arch_name;
560 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
561 if (filename == NULL)
564 strncpy (filename, arch_name, prefix_len);
565 strcpy (filename + prefix_len, elt_name);
569 /* This is an internal function; it's mainly used when indexing
570 through the archive symbol table, but also used to get the next
571 element, since it handles the bookkeeping so nicely for us. */
574 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
576 struct areltdata *new_areldata;
580 if (archive->my_archive)
582 filepos += archive->origin;
583 archive = archive->my_archive;
586 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
590 if (0 > bfd_seek (archive, filepos, SEEK_SET))
593 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
596 filename = new_areldata->filename;
598 if (bfd_is_thin_archive (archive))
600 /* This is a proxy entry for an external file. */
601 if (! IS_ABSOLUTE_PATH (filename))
603 filename = _bfd_append_relative_path (archive, filename);
604 if (filename == NULL)
608 if (new_areldata->origin > 0)
610 /* This proxy entry refers to an element of a nested archive.
611 Locate the member of that archive and return a bfd for it. */
612 bfd *ext_arch = _bfd_find_nested_archive (archive, filename);
615 || ! bfd_check_format (ext_arch, bfd_archive))
617 bfd_release (archive, new_areldata);
620 n_nfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
623 bfd_release (archive, new_areldata);
626 n_nfd->proxy_origin = bfd_tell (archive);
629 /* It's not an element of a nested archive;
630 open the external file as a bfd. */
631 n_nfd = bfd_openr (filename, NULL);
635 n_nfd = _bfd_create_empty_archive_element_shell (archive);
640 bfd_release (archive, new_areldata);
644 n_nfd->proxy_origin = bfd_tell (archive);
646 if (bfd_is_thin_archive (archive))
652 n_nfd->origin = n_nfd->proxy_origin;
653 n_nfd->filename = filename;
656 n_nfd->arelt_data = new_areldata;
658 /* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
659 n_nfd->flags |= archive->flags & (BFD_COMPRESS | BFD_DECOMPRESS);
661 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
665 /* FIXME: n_nfd isn't allocated in the archive's memory pool.
666 If we reach this point, I think bfd_release will abort. */
667 bfd_release (archive, n_nfd);
668 bfd_release (archive, new_areldata);
672 /* Return the BFD which is referenced by the symbol in ABFD indexed by
673 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
676 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
680 entry = bfd_ardata (abfd)->symdefs + sym_index;
681 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
686 bfd_openr_next_archived_file
689 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
692 Provided a BFD, @var{archive}, containing an archive and NULL, open
693 an input BFD on the first contained element and returns that.
694 Subsequent calls should pass
695 the archive and the previous return value to return a created
696 BFD to the next contained element. NULL is returned when there
701 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
703 if ((bfd_get_format (archive) != bfd_archive)
704 || (archive->direction == write_direction))
706 bfd_set_error (bfd_error_invalid_operation);
710 return BFD_SEND (archive,
711 openr_next_archived_file, (archive, last_file));
715 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
720 filestart = bfd_ardata (archive)->first_file_filepos;
723 unsigned int size = arelt_size (last_file);
724 filestart = last_file->proxy_origin;
725 if (! bfd_is_thin_archive (archive))
727 if (archive->my_archive)
728 filestart -= archive->origin;
729 /* Pad to an even boundary...
730 Note that last_file->origin can be odd in the case of
731 BSD-4.4-style element with a long odd size. */
732 filestart += filestart % 2;
735 return _bfd_get_elt_at_filepos (archive, filestart);
739 bfd_generic_archive_p (bfd *abfd)
741 struct artdata *tdata_hold;
742 char armag[SARMAG + 1];
745 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
747 if (bfd_get_error () != bfd_error_system_call)
748 bfd_set_error (bfd_error_wrong_format);
752 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
754 if (strncmp (armag, ARMAG, SARMAG) != 0
755 && strncmp (armag, ARMAGB, SARMAG) != 0
756 && ! bfd_is_thin_archive (abfd))
759 tdata_hold = bfd_ardata (abfd);
761 amt = sizeof (struct artdata);
762 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
763 if (bfd_ardata (abfd) == NULL)
765 bfd_ardata (abfd) = tdata_hold;
769 bfd_ardata (abfd)->first_file_filepos = SARMAG;
770 /* Cleared by bfd_zalloc above.
771 bfd_ardata (abfd)->cache = NULL;
772 bfd_ardata (abfd)->archive_head = NULL;
773 bfd_ardata (abfd)->symdefs = NULL;
774 bfd_ardata (abfd)->extended_names = NULL;
775 bfd_ardata (abfd)->extended_names_size = 0;
776 bfd_ardata (abfd)->tdata = NULL; */
778 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
779 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
781 if (bfd_get_error () != bfd_error_system_call)
782 bfd_set_error (bfd_error_wrong_format);
783 bfd_release (abfd, bfd_ardata (abfd));
784 bfd_ardata (abfd) = tdata_hold;
788 if (bfd_has_map (abfd))
792 /* This archive has a map, so we may presume that the contents
793 are object files. Make sure that if the first file in the
794 archive can be recognized as an object file, it is for this
795 target. If not, assume that this is the wrong format. If
796 the first file is not an object file, somebody is doing
797 something weird, and we permit it so that ar -t will work.
799 This is done because any normal format will recognize any
800 normal archive, regardless of the format of the object files.
801 We do accept an empty archive. */
803 first = bfd_openr_next_archived_file (abfd, NULL);
806 first->target_defaulted = FALSE;
807 if (bfd_check_format (first, bfd_object)
808 && first->xvec != abfd->xvec)
810 bfd_set_error (bfd_error_wrong_object_format);
811 bfd_ardata (abfd) = tdata_hold;
814 /* And we ought to close `first' here too. */
821 /* Some constants for a 32 bit BSD archive structure. We do not
822 support 64 bit archives presently; so far as I know, none actually
823 exist. Supporting them would require changing these constants, and
824 changing some H_GET_32 to H_GET_64. */
826 /* The size of an external symdef structure. */
827 #define BSD_SYMDEF_SIZE 8
829 /* The offset from the start of a symdef structure to the file offset. */
830 #define BSD_SYMDEF_OFFSET_SIZE 4
832 /* The size of the symdef count. */
833 #define BSD_SYMDEF_COUNT_SIZE 4
835 /* The size of the string count. */
836 #define BSD_STRING_COUNT_SIZE 4
838 /* Read a BSD-style archive symbol table. Returns FALSE on error,
842 do_slurp_bsd_armap (bfd *abfd)
844 struct areltdata *mapdata;
845 unsigned int counter;
846 bfd_byte *raw_armap, *rbase;
847 struct artdata *ardata = bfd_ardata (abfd);
849 bfd_size_type parsed_size, amt;
852 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
855 parsed_size = mapdata->parsed_size;
856 bfd_release (abfd, mapdata); /* Don't need it any more. */
858 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
859 if (raw_armap == NULL)
862 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
864 if (bfd_get_error () != bfd_error_system_call)
865 bfd_set_error (bfd_error_malformed_archive);
867 bfd_release (abfd, raw_armap);
871 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
873 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
874 parsed_size - BSD_SYMDEF_COUNT_SIZE)
876 /* Probably we're using the wrong byte ordering. */
877 bfd_set_error (bfd_error_wrong_format);
882 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
883 stringbase = ((char *) rbase
884 + ardata->symdef_count * BSD_SYMDEF_SIZE
885 + BSD_STRING_COUNT_SIZE);
886 amt = ardata->symdef_count * sizeof (carsym);
887 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
888 if (!ardata->symdefs)
891 for (counter = 0, set = ardata->symdefs;
892 counter < ardata->symdef_count;
893 counter++, set++, rbase += BSD_SYMDEF_SIZE)
895 set->name = H_GET_32 (abfd, rbase) + stringbase;
896 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
899 ardata->first_file_filepos = bfd_tell (abfd);
900 /* Pad to an even boundary if you have to. */
901 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
902 /* FIXME, we should provide some way to free raw_ardata when
903 we are done using the strings from it. For now, it seems
904 to be allocated on an objalloc anyway... */
905 bfd_has_map (abfd) = TRUE;
909 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
913 do_slurp_coff_armap (bfd *abfd)
915 struct areltdata *mapdata;
916 int *raw_armap, *rawptr;
917 struct artdata *ardata = bfd_ardata (abfd);
919 bfd_size_type stringsize;
920 unsigned int parsed_size;
922 bfd_size_type nsymz; /* Number of symbols in armap. */
923 bfd_vma (*swap) (const void *);
924 char int_buf[sizeof (long)];
925 bfd_size_type carsym_size, ptrsize;
928 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
931 parsed_size = mapdata->parsed_size;
932 bfd_release (abfd, mapdata); /* Don't need it any more. */
934 if (bfd_bread (int_buf, 4, abfd) != 4)
936 if (bfd_get_error () != bfd_error_system_call)
937 bfd_set_error (bfd_error_malformed_archive);
940 /* It seems that all numeric information in a coff archive is always
941 in big endian format, nomatter the host or target. */
943 nsymz = bfd_getb32 (int_buf);
944 stringsize = parsed_size - (4 * nsymz) - 4;
946 /* ... except that some archive formats are broken, and it may be our
947 fault - the i960 little endian coff sometimes has big and sometimes
948 little, because our tools changed. Here's a horrible hack to clean
951 if (stringsize > 0xfffff
952 && bfd_get_arch (abfd) == bfd_arch_i960
953 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
955 /* This looks dangerous, let's do it the other way around. */
956 nsymz = bfd_getl32 (int_buf);
957 stringsize = parsed_size - (4 * nsymz) - 4;
961 /* The coff armap must be read sequentially. So we construct a
962 bsd-style one in core all at once, for simplicity. */
964 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
967 carsym_size = (nsymz * sizeof (carsym));
968 ptrsize = (4 * nsymz);
970 if (carsym_size + stringsize + 1 <= carsym_size)
973 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
974 carsym_size + stringsize + 1);
975 if (ardata->symdefs == NULL)
977 carsyms = ardata->symdefs;
978 stringbase = ((char *) ardata->symdefs) + carsym_size;
980 /* Allocate and read in the raw offsets. */
981 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
982 if (raw_armap == NULL)
983 goto release_symdefs;
984 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
985 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
987 if (bfd_get_error () != bfd_error_system_call)
988 bfd_set_error (bfd_error_malformed_archive);
989 goto release_raw_armap;
992 /* OK, build the carsyms. */
993 for (i = 0; i < nsymz; i++)
995 rawptr = raw_armap + i;
996 carsyms->file_offset = swap ((bfd_byte *) rawptr);
997 carsyms->name = stringbase;
998 stringbase += strlen (stringbase) + 1;
1003 ardata->symdef_count = nsymz;
1004 ardata->first_file_filepos = bfd_tell (abfd);
1005 /* Pad to an even boundary if you have to. */
1006 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1008 bfd_has_map (abfd) = TRUE;
1009 bfd_release (abfd, raw_armap);
1011 /* Check for a second archive header (as used by PE). */
1013 struct areltdata *tmp;
1015 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1016 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1019 if (tmp->arch_header[0] == '/'
1020 && tmp->arch_header[1] == ' ')
1022 ardata->first_file_filepos +=
1023 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1025 bfd_release (abfd, tmp);
1032 bfd_release (abfd, raw_armap);
1034 bfd_release (abfd, (ardata)->symdefs);
1038 /* This routine can handle either coff-style or bsd-style armaps
1039 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1042 bfd_slurp_armap (bfd *abfd)
1045 int i = bfd_bread (nextname, 16, abfd);
1052 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1055 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1056 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1057 return do_slurp_bsd_armap (abfd);
1058 else if (CONST_STRNEQ (nextname, "/ "))
1059 return do_slurp_coff_armap (abfd);
1060 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1062 /* 64bit ELF (Irix 6) archive. */
1064 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
1065 return bfd_elf64_archive_slurp_armap (abfd);
1067 bfd_set_error (bfd_error_wrong_format);
1071 else if (CONST_STRNEQ (nextname, "#1/20 "))
1073 /* Mach-O has a special name for armap when the map is sorted by name.
1074 However because this name has a space it is slightly more difficult
1079 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1081 /* Read the extended name. We know its length. */
1082 if (bfd_bread (extname, 20, abfd) != 20)
1084 if (bfd_seek (abfd, (file_ptr) -(sizeof (hdr) + 20), SEEK_CUR) != 0)
1086 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1087 || CONST_STRNEQ (extname, "__.SYMDEF"))
1088 return do_slurp_bsd_armap (abfd);
1091 bfd_has_map (abfd) = FALSE;
1095 /* Returns FALSE on error, TRUE otherwise. */
1096 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1097 header is in a slightly different order and the map name is '/'.
1098 This flavour is used by hp300hpux. */
1100 #define HPUX_SYMDEF_COUNT_SIZE 2
1103 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1105 struct areltdata *mapdata;
1107 unsigned int counter;
1108 bfd_byte *raw_armap, *rbase;
1109 struct artdata *ardata = bfd_ardata (abfd);
1111 unsigned int stringsize;
1115 int i = bfd_bread (nextname, 16, abfd);
1122 /* The archive has at least 16 bytes in it. */
1123 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1126 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1127 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1128 return do_slurp_bsd_armap (abfd);
1130 if (! CONST_STRNEQ (nextname, "/ "))
1132 bfd_has_map (abfd) = FALSE;
1136 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1137 if (mapdata == NULL)
1140 if (mapdata->parsed_size < HPUX_SYMDEF_COUNT_SIZE + BSD_STRING_COUNT_SIZE)
1143 bfd_set_error (bfd_error_wrong_format);
1145 bfd_release (abfd, mapdata);
1148 left = mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE - BSD_STRING_COUNT_SIZE;
1150 amt = mapdata->parsed_size;
1151 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1152 if (raw_armap == NULL)
1155 if (bfd_bread (raw_armap, amt, abfd) != amt)
1157 if (bfd_get_error () != bfd_error_system_call)
1158 bfd_set_error (bfd_error_malformed_archive);
1162 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1166 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1167 if (stringsize > left)
1171 /* Skip sym count and string sz. */
1172 stringbase = ((char *) raw_armap
1173 + HPUX_SYMDEF_COUNT_SIZE
1174 + BSD_STRING_COUNT_SIZE);
1175 rbase = (bfd_byte *) stringbase + stringsize;
1176 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1180 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1181 if (!ardata->symdefs)
1184 for (counter = 0, set = ardata->symdefs;
1185 counter < ardata->symdef_count;
1186 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1188 set->name = H_GET_32 (abfd, rbase) + stringbase;
1189 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1192 ardata->first_file_filepos = bfd_tell (abfd);
1193 /* Pad to an even boundary if you have to. */
1194 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1195 /* FIXME, we should provide some way to free raw_ardata when
1196 we are done using the strings from it. For now, it seems
1197 to be allocated on an objalloc anyway... */
1198 bfd_has_map (abfd) = TRUE;
1202 /** Extended name table.
1204 Normally archives support only 14-character filenames.
1206 Intel has extended the format: longer names are stored in a special
1207 element (the first in the archive, or second if there is an armap);
1208 the name in the ar_hdr is replaced by <space><index into filename
1209 element>. Index is the P.R. of an int (decimal). Data General have
1210 extended the format by using the prefix // for the special element. */
1212 /* Returns FALSE on error, TRUE otherwise. */
1215 _bfd_slurp_extended_name_table (bfd *abfd)
1218 struct areltdata *namedata;
1221 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1222 we probably don't want to return TRUE. */
1223 bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET);
1224 if (bfd_bread (nextname, 16, abfd) == 16)
1226 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1229 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1230 && ! CONST_STRNEQ (nextname, "// "))
1232 bfd_ardata (abfd)->extended_names = NULL;
1233 bfd_ardata (abfd)->extended_names_size = 0;
1237 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1238 if (namedata == NULL)
1241 amt = namedata->parsed_size;
1245 bfd_ardata (abfd)->extended_names_size = amt;
1246 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1247 if (bfd_ardata (abfd)->extended_names == NULL)
1250 bfd_release (abfd, namedata);
1254 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1256 if (bfd_get_error () != bfd_error_system_call)
1257 bfd_set_error (bfd_error_malformed_archive);
1258 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1259 bfd_ardata (abfd)->extended_names = NULL;
1263 /* Since the archive is supposed to be printable if it contains
1264 text, the entries in the list are newline-padded, not null
1265 padded. In SVR4-style archives, the names also have a
1266 trailing '/'. DOS/NT created archive often have \ in them
1267 We'll fix all problems here.. */
1269 char *ext_names = bfd_ardata (abfd)->extended_names;
1270 char *temp = ext_names;
1271 char *limit = temp + namedata->parsed_size;
1272 for (; temp < limit; ++temp)
1274 if (*temp == ARFMAG[1])
1275 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1282 /* Pad to an even boundary if you have to. */
1283 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1284 bfd_ardata (abfd)->first_file_filepos +=
1285 (bfd_ardata (abfd)->first_file_filepos) % 2;
1287 /* FIXME, we can't release namedata here because it was allocated
1288 below extended_names on the objalloc... */
1295 /* Return a copy of the stuff in the filename between any :]> and a
1299 normalize (bfd *abfd, const char *file)
1305 first = file + strlen (file) - 1;
1308 while (first != file)
1312 if (*first == ':' || *first == ']' || *first == '>')
1320 copy = bfd_alloc (abfd, last - first + 1);
1324 memcpy (copy, first, last - first);
1325 copy[last - first] = 0;
1332 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1334 return lbasename (file);
1338 /* Adjust a relative path name based on the reference path. */
1341 adjust_relative_path (const char * path, const char * ref_path)
1343 static char *pathbuf = NULL;
1344 static int pathbuf_len = 0;
1345 const char *pathp = path;
1346 const char *refp = ref_path;
1347 int element_count = 0;
1351 /* Remove common leading path elements. */
1354 const char *e1 = pathp;
1355 const char *e2 = refp;
1357 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1359 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1361 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1362 || strncmp (pathp, refp, e1 - pathp) != 0)
1368 /* For each leading path element in the reference path,
1369 insert "../" into the path. */
1370 for (; *refp; ++refp)
1371 if (IS_DIR_SEPARATOR (*refp))
1373 len = 3 * element_count + strlen (path) + 1;
1375 if (len > pathbuf_len)
1377 if (pathbuf != NULL)
1380 pathbuf = (char *) bfd_malloc (len);
1381 if (pathbuf == NULL)
1387 while (element_count-- > 0)
1389 /* FIXME: Support Windows style path separators as well. */
1390 strcpy (newp, "../");
1393 strcpy (newp, pathp);
1398 /* Build a BFD style extended name table. */
1401 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1403 bfd_size_type *tablen,
1406 *name = "ARFILENAMES/";
1407 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1410 /* Build an SVR4 style extended name table. */
1413 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1415 bfd_size_type *tablen,
1419 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1422 /* Follows archive_head and produces an extended name table if
1423 necessary. Returns (in tabloc) a pointer to an extended name
1424 table, and in tablen the length of the table. If it makes an entry
1425 it clobbers the filename so that the element may be written without
1426 further massage. Returns TRUE if it ran successfully, FALSE if
1427 something went wrong. A successful return may still involve a
1428 zero-length tablen! */
1431 _bfd_construct_extended_name_table (bfd *abfd,
1432 bfd_boolean trailing_slash,
1434 bfd_size_type *tablen)
1436 unsigned int maxname = abfd->xvec->ar_max_namelen;
1437 bfd_size_type total_namelen = 0;
1440 const char *last_filename;
1444 last_filename = NULL;
1446 /* Figure out how long the table should be. */
1447 for (current = abfd->archive_head;
1449 current = current->archive_next)
1452 unsigned int thislen;
1454 if (bfd_is_thin_archive (abfd))
1456 const char *filename = current->filename;
1458 /* If the element being added is a member of another archive
1459 (i.e., we are flattening), use the containing archive's name. */
1460 if (current->my_archive
1461 && ! bfd_is_thin_archive (current->my_archive))
1462 filename = current->my_archive->filename;
1464 /* If the path is the same as the previous path seen,
1465 reuse it. This can happen when flattening a thin
1466 archive that contains other archives. */
1467 if (last_filename && strcmp (last_filename, filename) == 0)
1470 last_filename = filename;
1472 /* If the path is relative, adjust it relative to
1473 the containing archive. */
1474 if (! IS_ABSOLUTE_PATH (filename)
1475 && ! IS_ABSOLUTE_PATH (abfd->filename))
1476 normal = adjust_relative_path (filename, abfd->filename);
1480 /* In a thin archive, always store the full pathname
1481 in the extended name table. */
1482 total_namelen += strlen (normal) + 1;
1484 /* Leave room for trailing slash. */
1490 normal = normalize (current, current->filename);
1494 thislen = strlen (normal);
1496 if (thislen > maxname
1497 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1500 if (thislen > maxname)
1502 /* Add one to leave room for \n. */
1503 total_namelen += thislen + 1;
1506 /* Leave room for trailing slash. */
1512 struct ar_hdr *hdr = arch_hdr (current);
1513 if (strncmp (normal, hdr->ar_name, thislen) != 0
1514 || (thislen < sizeof hdr->ar_name
1515 && hdr->ar_name[thislen] != ar_padchar (current)))
1517 /* Must have been using extended format even though it
1518 didn't need to. Fix it to use normal format. */
1519 memcpy (hdr->ar_name, normal, thislen);
1520 if (thislen < maxname
1521 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1522 hdr->ar_name[thislen] = ar_padchar (current);
1527 if (total_namelen == 0)
1530 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1531 if (*tabloc == NULL)
1534 *tablen = total_namelen;
1537 last_filename = NULL;
1540 for (current = abfd->archive_head;
1542 current = current->archive_next)
1545 unsigned int thislen;
1547 const char *filename = current->filename;
1549 if (bfd_is_thin_archive (abfd))
1551 /* If the element being added is a member of another archive
1552 (i.e., we are flattening), use the containing archive's name. */
1553 if (current->my_archive
1554 && ! bfd_is_thin_archive (current->my_archive))
1555 filename = current->my_archive->filename;
1556 /* If the path is the same as the previous path seen,
1557 reuse it. This can happen when flattening a thin
1558 archive that contains other archives.
1559 If the path is relative, adjust it relative to
1560 the containing archive. */
1561 if (last_filename && strcmp (last_filename, filename) == 0)
1562 normal = last_filename;
1563 else if (! IS_ABSOLUTE_PATH (filename)
1564 && ! IS_ABSOLUTE_PATH (abfd->filename))
1565 normal = adjust_relative_path (filename, abfd->filename);
1571 normal = normalize (current, filename);
1576 thislen = strlen (normal);
1577 if (thislen > maxname || bfd_is_thin_archive (abfd))
1579 /* Works for now; may need to be re-engineered if we
1580 encounter an oddball archive format and want to
1581 generalise this hack. */
1582 struct ar_hdr *hdr = arch_hdr (current);
1583 if (normal == last_filename)
1584 stroff = last_stroff;
1587 strcpy (strptr, normal);
1588 if (! trailing_slash)
1589 strptr[thislen] = ARFMAG[1];
1592 strptr[thislen] = '/';
1593 strptr[thislen + 1] = ARFMAG[1];
1595 stroff = strptr - *tabloc;
1596 last_stroff = stroff;
1598 hdr->ar_name[0] = ar_padchar (current);
1599 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1601 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1603 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1605 current->origin - sizeof (struct ar_hdr));
1608 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1609 if (normal != last_filename)
1611 strptr += thislen + 1;
1614 last_filename = filename;
1622 /* Do not construct an extended name table but transforms name field into
1623 its extended form. */
1626 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1628 bfd_size_type *tablen,
1631 unsigned int maxname = abfd->xvec->ar_max_namelen;
1638 for (current = abfd->archive_head;
1640 current = current->archive_next)
1642 const char *normal = normalize (current, current->filename);
1649 for (len = 0; normal[len]; len++)
1650 if (normal[len] == ' ')
1653 if (len > maxname || has_space)
1655 struct ar_hdr *hdr = arch_hdr (current);
1657 len = (len + 3) & ~3;
1658 arch_eltdata (current)->extra_size = len;
1659 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1666 /* Write an archive header. */
1669 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1671 struct ar_hdr *hdr = arch_hdr (abfd);
1673 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1678 /* Write an archive header using BSD4.4 convention. */
1681 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1683 struct ar_hdr *hdr = arch_hdr (abfd);
1685 if (is_bsd44_extended_name (hdr->ar_name))
1687 /* This is a BSD 4.4 extended name. */
1688 const char *fullname = normalize (abfd, abfd->filename);
1689 unsigned int len = strlen (fullname);
1690 unsigned int padded_len = (len + 3) & ~3;
1692 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1694 _bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
1695 arch_eltdata (abfd)->parsed_size + padded_len);
1697 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1700 if (bfd_bwrite (fullname, len, archive) != len)
1704 static const char pad[3] = { 0, 0, 0 };
1706 len = 4 - (len & 3);
1707 if (bfd_bwrite (pad, len, archive) != len)
1713 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1719 /* A couple of functions for creating ar_hdrs. */
1721 #ifdef HPUX_LARGE_AR_IDS
1722 /* Function to encode large UID/GID values according to HP. */
1725 hpux_uid_gid_encode (char str[6], long int id)
1729 str[5] = '@' + (id & 3);
1732 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1733 str[cnt] = ' ' + (id & 0x3f);
1735 #endif /* HPUX_LARGE_AR_IDS */
1745 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1746 make one. The filename must refer to a filename in the filesystem.
1747 The filename field of the ar_hdr will NOT be initialized. If member
1748 is set, and it's an in-memory bfd, we fake it. */
1750 static struct areltdata *
1751 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1754 struct areltdata *ared;
1758 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1760 /* Assume we just "made" the member, and fake it. */
1761 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1762 time (&status.st_mtime);
1763 status.st_uid = getuid ();
1764 status.st_gid = getgid ();
1765 status.st_mode = 0644;
1766 status.st_size = bim->size;
1768 else if (stat (filename, &status) != 0)
1770 bfd_set_error (bfd_error_system_call);
1774 /* If the caller requested that the BFD generate deterministic output,
1775 fake values for modification time, UID, GID, and file mode. */
1776 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1778 status.st_mtime = 0;
1781 status.st_mode = 0644;
1784 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1785 ared = (struct areltdata *) bfd_zalloc (abfd, amt);
1788 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1790 /* ar headers are space padded, not null padded! */
1791 memset (hdr, ' ', sizeof (struct ar_hdr));
1793 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1795 #ifdef HPUX_LARGE_AR_IDS
1796 /* HP has a very "special" way to handle UID/GID's with numeric values
1798 if (status.st_uid > 99999)
1799 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1802 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1804 #ifdef HPUX_LARGE_AR_IDS
1805 /* HP has a very "special" way to handle UID/GID's with numeric values
1807 if (status.st_gid > 99999)
1808 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1811 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1813 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1815 _bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
1817 memcpy (hdr->ar_fmag, ARFMAG, 2);
1818 ared->parsed_size = status.st_size;
1819 ared->arch_header = (char *) hdr;
1824 /* Analogous to stat call. */
1827 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1832 if (abfd->arelt_data == NULL)
1834 bfd_set_error (bfd_error_invalid_operation);
1838 hdr = arch_hdr (abfd);
1840 #define foo(arelt, stelt, size) \
1841 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1842 if (aloser == hdr->arelt) \
1845 /* Some platforms support special notations for large IDs. */
1846 #ifdef HPUX_LARGE_AR_IDS
1847 # define foo2(arelt, stelt, size) \
1848 if (hdr->arelt[5] == ' ') \
1850 foo (arelt, stelt, size); \
1855 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1857 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1860 buf->stelt += hdr->arelt[cnt] - ' '; \
1862 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1865 buf->stelt += hdr->arelt[5] - '@'; \
1868 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1871 foo (ar_date, st_mtime, 10);
1872 foo2 (ar_uid, st_uid, 10);
1873 foo2 (ar_gid, st_gid, 10);
1874 foo (ar_mode, st_mode, 8);
1876 buf->st_size = arch_eltdata (abfd)->parsed_size;
1882 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1884 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1885 Fortunately ic960 users will never use that option. Fixing this
1886 is very hard; fortunately I know how to do it and will do so once
1887 intel's release is out the door. */
1889 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1891 const char *filename;
1892 size_t maxlen = ar_maxnamelen (abfd);
1894 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1896 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
1900 filename = normalize (abfd, pathname);
1901 if (filename == NULL)
1907 length = strlen (filename);
1909 if (length <= maxlen)
1910 memcpy (hdr->ar_name, filename, length);
1912 /* Add the padding character if there is room for it. */
1914 || (length == maxlen && length < sizeof hdr->ar_name))
1915 (hdr->ar_name)[length] = ar_padchar (abfd);
1919 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1921 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1923 const char *filename = lbasename (pathname);
1924 size_t maxlen = ar_maxnamelen (abfd);
1926 length = strlen (filename);
1928 if (length <= maxlen)
1929 memcpy (hdr->ar_name, filename, length);
1932 /* pathname: meet procrustes */
1933 memcpy (hdr->ar_name, filename, maxlen);
1937 if (length < maxlen)
1938 (hdr->ar_name)[length] = ar_padchar (abfd);
1941 /* Store name into ar header. Truncates the name to fit.
1942 1> strip pathname to be just the basename.
1943 2> if it's short enuf to fit, stuff it in.
1944 3> If it doesn't end with .o, truncate it to fit
1945 4> truncate it before the .o, append .o, stuff THAT in. */
1947 /* This is what gnu ar does. It's better but incompatible with the
1951 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1953 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1955 const char *filename = lbasename (pathname);
1956 size_t maxlen = ar_maxnamelen (abfd);
1958 length = strlen (filename);
1960 if (length <= maxlen)
1961 memcpy (hdr->ar_name, filename, length);
1964 /* pathname: meet procrustes. */
1965 memcpy (hdr->ar_name, filename, maxlen);
1966 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
1968 hdr->ar_name[maxlen - 2] = '.';
1969 hdr->ar_name[maxlen - 1] = 'o';
1975 (hdr->ar_name)[length] = ar_padchar (abfd);
1978 /* The BFD is open for write and has its format set to bfd_archive. */
1981 _bfd_write_archive_contents (bfd *arch)
1984 char *etable = NULL;
1985 bfd_size_type elength = 0;
1986 const char *ename = NULL;
1987 bfd_boolean makemap = bfd_has_map (arch);
1988 /* If no .o's, don't bother to make a map. */
1989 bfd_boolean hasobjects = FALSE;
1990 bfd_size_type wrote;
1994 /* Verify the viability of all entries; if any of them live in the
1995 filesystem (as opposed to living in an archive open for input)
1996 then construct a fresh ar_hdr for them. */
1997 for (current = arch->archive_head;
1999 current = current->archive_next)
2001 /* This check is checking the bfds for the objects we're reading
2002 from (which are usually either an object file or archive on
2003 disk), not the archive entries we're writing to. We don't
2004 actually create bfds for the archive members, we just copy
2005 them byte-wise when we write out the archive. */
2006 if (bfd_write_p (current))
2008 bfd_set_error (bfd_error_invalid_operation);
2011 if (!current->arelt_data)
2013 current->arelt_data =
2014 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2015 if (!current->arelt_data)
2018 /* Put in the file name. */
2019 BFD_SEND (arch, _bfd_truncate_arname,
2020 (arch, current->filename, (char *) arch_hdr (current)));
2023 if (makemap && ! hasobjects)
2024 { /* Don't bother if we won't make a map! */
2025 if ((bfd_check_format (current, bfd_object)))
2030 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2031 (arch, &etable, &elength, &ename)))
2034 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2037 if (bfd_is_thin_archive (arch))
2039 wrote = bfd_bwrite (armag, SARMAG, arch);
2040 if (wrote != SARMAG)
2043 if (makemap && hasobjects)
2045 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2053 memset (&hdr, ' ', sizeof (struct ar_hdr));
2054 memcpy (hdr.ar_name, ename, strlen (ename));
2055 /* Round size up to even number in archive header. */
2056 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
2057 (elength + 1) & ~(bfd_size_type) 1);
2058 memcpy (hdr.ar_fmag, ARFMAG, 2);
2059 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2060 != sizeof (struct ar_hdr))
2061 || bfd_bwrite (etable, elength, arch) != elength)
2063 if ((elength % 2) == 1)
2065 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2070 for (current = arch->archive_head;
2072 current = current->archive_next)
2074 char buffer[DEFAULT_BUFFERSIZE];
2075 unsigned int remaining = arelt_size (current);
2077 /* Write ar header. */
2078 if (!_bfd_write_ar_hdr (arch, current))
2080 if (bfd_is_thin_archive (arch))
2082 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2087 unsigned int amt = DEFAULT_BUFFERSIZE;
2089 if (amt > remaining)
2092 if (bfd_bread (buffer, amt, current) != amt)
2094 if (bfd_get_error () != bfd_error_system_call)
2095 bfd_set_error (bfd_error_file_truncated);
2098 if (bfd_bwrite (buffer, amt, arch) != amt)
2103 if ((arelt_size (current) % 2) == 1)
2105 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2110 if (makemap && hasobjects)
2112 /* Verify the timestamp in the archive file. If it would not be
2113 accepted by the linker, rewrite it until it would be. If
2114 anything odd happens, break out and just return. (The
2115 Berkeley linker checks the timestamp and refuses to read the
2116 table-of-contents if it is >60 seconds less than the file's
2117 modified-time. That painful hack requires this painful hack. */
2121 if (bfd_update_armap_timestamp (arch))
2123 (*_bfd_error_handler)
2124 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2126 while (++tries < 6);
2132 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2136 /* Note that the namidx for the first symbol is 0. */
2139 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2141 char *first_name = NULL;
2143 file_ptr elt_no = 0;
2144 struct orl *map = NULL;
2145 unsigned int orl_max = 1024; /* Fine initial default. */
2146 unsigned int orl_count = 0;
2148 asymbol **syms = NULL;
2153 /* Dunno if this is the best place for this info... */
2155 elength += sizeof (struct ar_hdr);
2156 elength += elength % 2;
2158 amt = orl_max * sizeof (struct orl);
2159 map = (struct orl *) bfd_malloc (amt);
2163 /* We put the symbol names on the arch objalloc, and then discard
2165 first_name = (char *) bfd_alloc (arch, 1);
2166 if (first_name == NULL)
2169 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2170 while (arch->archive_head
2171 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2172 arch->archive_head = arch->archive_head->archive_next;
2174 /* Map over each element. */
2175 for (current = arch->archive_head;
2177 current = current->archive_next, elt_no++)
2179 if (bfd_check_format (current, bfd_object)
2180 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2186 storage = bfd_get_symtab_upper_bound (current);
2192 if (storage > syms_max)
2197 syms = (asymbol **) bfd_malloc (syms_max);
2201 symcount = bfd_canonicalize_symtab (current, syms);
2205 /* Now map over all the symbols, picking out the ones we
2207 for (src_count = 0; src_count < symcount; src_count++)
2209 flagword flags = (syms[src_count])->flags;
2210 asection *sec = syms[src_count]->section;
2212 if ((flags & BSF_GLOBAL
2214 || flags & BSF_INDIRECT
2215 || flags & BSF_GNU_UNIQUE
2216 || bfd_is_com_section (sec))
2217 && ! bfd_is_und_section (sec))
2219 bfd_size_type namelen;
2220 struct orl *new_map;
2222 /* This symbol will go into the archive header. */
2223 if (orl_count == orl_max)
2226 amt = orl_max * sizeof (struct orl);
2227 new_map = (struct orl *) bfd_realloc (map, amt);
2228 if (new_map == NULL)
2234 namelen = strlen (syms[src_count]->name);
2235 amt = sizeof (char *);
2236 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2237 if (map[orl_count].name == NULL)
2239 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2241 if (*(map[orl_count].name) == NULL)
2243 strcpy (*(map[orl_count].name), syms[src_count]->name);
2244 map[orl_count].u.abfd = current;
2245 map[orl_count].namidx = stridx;
2247 stridx += namelen + 1;
2253 /* Now ask the BFD to free up any cached information, so we
2254 don't fill all of memory with symbol tables. */
2255 if (! bfd_free_cached_info (current))
2260 /* OK, now we have collected all the data, let's write them out. */
2261 ret = BFD_SEND (arch, write_armap,
2262 (arch, elength, map, orl_count, stridx));
2268 if (first_name != NULL)
2269 bfd_release (arch, first_name);
2278 if (first_name != NULL)
2279 bfd_release (arch, first_name);
2285 bsd_write_armap (bfd *arch,
2286 unsigned int elength,
2288 unsigned int orl_count,
2291 int padit = stridx & 1;
2292 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2293 unsigned int stringsize = stridx + padit;
2294 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2295 unsigned int mapsize = ranlibsize + stringsize + 8;
2297 bfd *current = arch->archive_head;
2298 bfd *last_elt = current; /* Last element arch seen. */
2302 struct stat statbuf;
2305 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2307 stat (arch->filename, &statbuf);
2308 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2310 /* Remember the timestamp, to keep it holy. But fudge it a little. */
2311 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2312 + ARMAP_TIME_OFFSET);
2318 /* If deterministic, we use 0 as the timestamp in the map.
2319 Some linkers may require that the archive filesystem modification
2320 time is less than (or near to) the archive map timestamp. Those
2321 linkers should not be used with deterministic mode. (GNU ld and
2322 Gold do not have this restriction.) */
2323 bfd_ardata (arch)->armap_timestamp = 0;
2328 memset (&hdr, ' ', sizeof (struct ar_hdr));
2329 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2330 bfd_ardata (arch)->armap_datepos = (SARMAG
2331 + offsetof (struct ar_hdr, ar_date[0]));
2332 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2333 bfd_ardata (arch)->armap_timestamp);
2334 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2335 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2336 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld", mapsize);
2337 memcpy (hdr.ar_fmag, ARFMAG, 2);
2338 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2339 != sizeof (struct ar_hdr))
2341 H_PUT_32 (arch, ranlibsize, temp);
2342 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2345 for (count = 0; count < orl_count; count++)
2347 bfd_byte buf[BSD_SYMDEF_SIZE];
2349 if (map[count].u.abfd != last_elt)
2353 struct areltdata *ared = arch_eltdata (current);
2355 firstreal += (ared->parsed_size + ared->extra_size
2356 + sizeof (struct ar_hdr));
2357 firstreal += firstreal % 2;
2358 current = current->archive_next;
2360 while (current != map[count].u.abfd);
2364 H_PUT_32 (arch, map[count].namidx, buf);
2365 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2366 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2371 /* Now write the strings themselves. */
2372 H_PUT_32 (arch, stringsize, temp);
2373 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2375 for (count = 0; count < orl_count; count++)
2377 size_t len = strlen (*map[count].name) + 1;
2379 if (bfd_bwrite (*map[count].name, len, arch) != len)
2383 /* The spec sez this should be a newline. But in order to be
2384 bug-compatible for sun's ar we use a null. */
2387 if (bfd_bwrite ("", 1, arch) != 1)
2394 /* At the end of archive file handling, update the timestamp in the
2395 file, so the linker will accept it.
2397 Return TRUE if the timestamp was OK, or an unusual problem happened.
2398 Return FALSE if we updated the timestamp. */
2401 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2403 struct stat archstat;
2406 /* If creating deterministic archives, just leave the timestamp as-is. */
2407 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2410 /* Flush writes, get last-write timestamp from file, and compare it
2411 to the timestamp IN the file. */
2413 if (bfd_stat (arch, &archstat) == -1)
2415 bfd_perror (_("Reading archive file mod timestamp"));
2417 /* Can't read mod time for some reason. */
2420 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2421 /* OK by the linker's rules. */
2424 /* Update the timestamp. */
2425 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2427 /* Prepare an ASCII version suitable for writing. */
2428 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2429 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2430 bfd_ardata (arch)->armap_timestamp);
2432 /* Write it into the file. */
2433 bfd_ardata (arch)->armap_datepos = (SARMAG
2434 + offsetof (struct ar_hdr, ar_date[0]));
2435 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2436 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2437 != sizeof (hdr.ar_date)))
2439 bfd_perror (_("Writing updated armap timestamp"));
2441 /* Some error while writing. */
2445 /* We updated the timestamp successfully. */
2449 /* A coff armap looks like :
2451 struct ar_hdr with name = '/'
2453 offset of file for symbol 0
2454 offset of file for symbol 1
2456 offset of file for symbol n-1
2463 coff_write_armap (bfd *arch,
2464 unsigned int elength,
2466 unsigned int symbol_count,
2469 /* The size of the ranlib is the number of exported symbols in the
2470 archive * the number of bytes in an int, + an int for the count. */
2471 unsigned int ranlibsize = (symbol_count * 4) + 4;
2472 unsigned int stringsize = stridx;
2473 unsigned int mapsize = stringsize + ranlibsize;
2474 unsigned int archive_member_file_ptr;
2475 bfd *current = arch->archive_head;
2478 int padit = mapsize & 1;
2483 /* Work out where the first object file will go in the archive. */
2484 archive_member_file_ptr = (mapsize
2486 + sizeof (struct ar_hdr)
2489 memset (&hdr, ' ', sizeof (struct ar_hdr));
2490 hdr.ar_name[0] = '/';
2491 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
2493 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2494 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2495 ? time (NULL) : 0));
2496 /* This, at least, is what Intel coff sets the values to. */
2497 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2498 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2499 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2500 memcpy (hdr.ar_fmag, ARFMAG, 2);
2502 /* Write the ar header for this item and the number of symbols. */
2503 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2504 != sizeof (struct ar_hdr))
2507 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2510 /* Two passes, first write the file offsets for each symbol -
2511 remembering that each offset is on a two byte boundary. */
2513 /* Write out the file offset for the file associated with each
2514 symbol, and remember to keep the offsets padded out. */
2516 current = arch->archive_head;
2518 while (current != NULL && count < symbol_count)
2520 /* For each symbol which is used defined in this object, write
2521 out the object file's address in the archive. */
2523 while (count < symbol_count && map[count].u.abfd == current)
2525 if (!bfd_write_bigendian_4byte_int (arch, archive_member_file_ptr))
2529 archive_member_file_ptr += sizeof (struct ar_hdr);
2530 if (! bfd_is_thin_archive (arch))
2532 /* Add size of this archive entry. */
2533 archive_member_file_ptr += arelt_size (current);
2534 /* Remember about the even alignment. */
2535 archive_member_file_ptr += archive_member_file_ptr % 2;
2537 current = current->archive_next;
2540 /* Now write the strings themselves. */
2541 for (count = 0; count < symbol_count; count++)
2543 size_t len = strlen (*map[count].name) + 1;
2545 if (bfd_bwrite (*map[count].name, len, arch) != len)
2549 /* The spec sez this should be a newline. But in order to be
2550 bug-compatible for arc960 we use a null. */
2553 if (bfd_bwrite ("", 1, arch) != 1)