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 (filename_cmp (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))
664 bfd_release (archive, new_areldata);
668 /* Return the BFD which is referenced by the symbol in ABFD indexed by
669 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
672 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
676 entry = bfd_ardata (abfd)->symdefs + sym_index;
677 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
682 bfd_openr_next_archived_file
685 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
688 Provided a BFD, @var{archive}, containing an archive and NULL, open
689 an input BFD on the first contained element and returns that.
690 Subsequent calls should pass
691 the archive and the previous return value to return a created
692 BFD to the next contained element. NULL is returned when there
697 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
699 if ((bfd_get_format (archive) != bfd_archive)
700 || (archive->direction == write_direction))
702 bfd_set_error (bfd_error_invalid_operation);
706 return BFD_SEND (archive,
707 openr_next_archived_file, (archive, last_file));
711 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
716 filestart = bfd_ardata (archive)->first_file_filepos;
719 unsigned int size = arelt_size (last_file);
720 filestart = last_file->proxy_origin;
721 if (! bfd_is_thin_archive (archive))
723 if (archive->my_archive)
724 filestart -= archive->origin;
725 /* Pad to an even boundary...
726 Note that last_file->origin can be odd in the case of
727 BSD-4.4-style element with a long odd size. */
728 filestart += filestart % 2;
731 return _bfd_get_elt_at_filepos (archive, filestart);
735 bfd_generic_archive_p (bfd *abfd)
737 struct artdata *tdata_hold;
738 char armag[SARMAG + 1];
741 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
743 if (bfd_get_error () != bfd_error_system_call)
744 bfd_set_error (bfd_error_wrong_format);
748 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
750 if (strncmp (armag, ARMAG, SARMAG) != 0
751 && strncmp (armag, ARMAGB, SARMAG) != 0
752 && ! bfd_is_thin_archive (abfd))
755 tdata_hold = bfd_ardata (abfd);
757 amt = sizeof (struct artdata);
758 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
759 if (bfd_ardata (abfd) == NULL)
761 bfd_ardata (abfd) = tdata_hold;
765 bfd_ardata (abfd)->first_file_filepos = SARMAG;
766 /* Cleared by bfd_zalloc above.
767 bfd_ardata (abfd)->cache = NULL;
768 bfd_ardata (abfd)->archive_head = NULL;
769 bfd_ardata (abfd)->symdefs = NULL;
770 bfd_ardata (abfd)->extended_names = NULL;
771 bfd_ardata (abfd)->extended_names_size = 0;
772 bfd_ardata (abfd)->tdata = NULL; */
774 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
775 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
777 if (bfd_get_error () != bfd_error_system_call)
778 bfd_set_error (bfd_error_wrong_format);
779 bfd_release (abfd, bfd_ardata (abfd));
780 bfd_ardata (abfd) = tdata_hold;
784 if (bfd_has_map (abfd))
788 /* This archive has a map, so we may presume that the contents
789 are object files. Make sure that if the first file in the
790 archive can be recognized as an object file, it is for this
791 target. If not, assume that this is the wrong format. If
792 the first file is not an object file, somebody is doing
793 something weird, and we permit it so that ar -t will work.
795 This is done because any normal format will recognize any
796 normal archive, regardless of the format of the object files.
797 We do accept an empty archive. */
799 first = bfd_openr_next_archived_file (abfd, NULL);
802 first->target_defaulted = FALSE;
803 if (bfd_check_format (first, bfd_object)
804 && first->xvec != abfd->xvec)
806 bfd_set_error (bfd_error_wrong_object_format);
807 bfd_ardata (abfd) = tdata_hold;
810 /* And we ought to close `first' here too. */
817 /* Some constants for a 32 bit BSD archive structure. We do not
818 support 64 bit archives presently; so far as I know, none actually
819 exist. Supporting them would require changing these constants, and
820 changing some H_GET_32 to H_GET_64. */
822 /* The size of an external symdef structure. */
823 #define BSD_SYMDEF_SIZE 8
825 /* The offset from the start of a symdef structure to the file offset. */
826 #define BSD_SYMDEF_OFFSET_SIZE 4
828 /* The size of the symdef count. */
829 #define BSD_SYMDEF_COUNT_SIZE 4
831 /* The size of the string count. */
832 #define BSD_STRING_COUNT_SIZE 4
834 /* Read a BSD-style archive symbol table. Returns FALSE on error,
838 do_slurp_bsd_armap (bfd *abfd)
840 struct areltdata *mapdata;
841 unsigned int counter;
842 bfd_byte *raw_armap, *rbase;
843 struct artdata *ardata = bfd_ardata (abfd);
845 bfd_size_type parsed_size, amt;
848 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
851 parsed_size = mapdata->parsed_size;
852 bfd_release (abfd, mapdata); /* Don't need it any more. */
854 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
855 if (raw_armap == NULL)
858 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
860 if (bfd_get_error () != bfd_error_system_call)
861 bfd_set_error (bfd_error_malformed_archive);
863 bfd_release (abfd, raw_armap);
867 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
869 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
870 parsed_size - BSD_SYMDEF_COUNT_SIZE)
872 /* Probably we're using the wrong byte ordering. */
873 bfd_set_error (bfd_error_wrong_format);
878 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
879 stringbase = ((char *) rbase
880 + ardata->symdef_count * BSD_SYMDEF_SIZE
881 + BSD_STRING_COUNT_SIZE);
882 amt = ardata->symdef_count * sizeof (carsym);
883 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
884 if (!ardata->symdefs)
887 for (counter = 0, set = ardata->symdefs;
888 counter < ardata->symdef_count;
889 counter++, set++, rbase += BSD_SYMDEF_SIZE)
891 set->name = H_GET_32 (abfd, rbase) + stringbase;
892 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
895 ardata->first_file_filepos = bfd_tell (abfd);
896 /* Pad to an even boundary if you have to. */
897 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
898 /* FIXME, we should provide some way to free raw_ardata when
899 we are done using the strings from it. For now, it seems
900 to be allocated on an objalloc anyway... */
901 bfd_has_map (abfd) = TRUE;
905 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
909 do_slurp_coff_armap (bfd *abfd)
911 struct areltdata *mapdata;
912 int *raw_armap, *rawptr;
913 struct artdata *ardata = bfd_ardata (abfd);
915 bfd_size_type stringsize;
916 unsigned int parsed_size;
918 bfd_size_type nsymz; /* Number of symbols in armap. */
919 bfd_vma (*swap) (const void *);
920 char int_buf[sizeof (long)];
921 bfd_size_type carsym_size, ptrsize;
924 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
927 parsed_size = mapdata->parsed_size;
928 bfd_release (abfd, mapdata); /* Don't need it any more. */
930 if (bfd_bread (int_buf, 4, abfd) != 4)
932 if (bfd_get_error () != bfd_error_system_call)
933 bfd_set_error (bfd_error_malformed_archive);
936 /* It seems that all numeric information in a coff archive is always
937 in big endian format, nomatter the host or target. */
939 nsymz = bfd_getb32 (int_buf);
940 stringsize = parsed_size - (4 * nsymz) - 4;
942 /* ... except that some archive formats are broken, and it may be our
943 fault - the i960 little endian coff sometimes has big and sometimes
944 little, because our tools changed. Here's a horrible hack to clean
947 if (stringsize > 0xfffff
948 && bfd_get_arch (abfd) == bfd_arch_i960
949 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
951 /* This looks dangerous, let's do it the other way around. */
952 nsymz = bfd_getl32 (int_buf);
953 stringsize = parsed_size - (4 * nsymz) - 4;
957 /* The coff armap must be read sequentially. So we construct a
958 bsd-style one in core all at once, for simplicity. */
960 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
963 carsym_size = (nsymz * sizeof (carsym));
964 ptrsize = (4 * nsymz);
966 if (carsym_size + stringsize + 1 <= carsym_size)
969 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
970 carsym_size + stringsize + 1);
971 if (ardata->symdefs == NULL)
973 carsyms = ardata->symdefs;
974 stringbase = ((char *) ardata->symdefs) + carsym_size;
976 /* Allocate and read in the raw offsets. */
977 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
978 if (raw_armap == NULL)
979 goto release_symdefs;
980 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
981 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
983 if (bfd_get_error () != bfd_error_system_call)
984 bfd_set_error (bfd_error_malformed_archive);
985 goto release_raw_armap;
988 /* OK, build the carsyms. */
989 for (i = 0; i < nsymz; i++)
991 rawptr = raw_armap + i;
992 carsyms->file_offset = swap ((bfd_byte *) rawptr);
993 carsyms->name = stringbase;
994 stringbase += strlen (stringbase) + 1;
999 ardata->symdef_count = nsymz;
1000 ardata->first_file_filepos = bfd_tell (abfd);
1001 /* Pad to an even boundary if you have to. */
1002 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1004 bfd_has_map (abfd) = TRUE;
1005 bfd_release (abfd, raw_armap);
1007 /* Check for a second archive header (as used by PE). */
1009 struct areltdata *tmp;
1011 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1012 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1015 if (tmp->arch_header[0] == '/'
1016 && tmp->arch_header[1] == ' ')
1018 ardata->first_file_filepos +=
1019 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1021 bfd_release (abfd, tmp);
1028 bfd_release (abfd, raw_armap);
1030 bfd_release (abfd, (ardata)->symdefs);
1034 /* This routine can handle either coff-style or bsd-style armaps
1035 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1038 bfd_slurp_armap (bfd *abfd)
1041 int i = bfd_bread (nextname, 16, abfd);
1048 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1051 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1052 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1053 return do_slurp_bsd_armap (abfd);
1054 else if (CONST_STRNEQ (nextname, "/ "))
1055 return do_slurp_coff_armap (abfd);
1056 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1058 /* 64bit ELF (Irix 6) archive. */
1060 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
1061 return bfd_elf64_archive_slurp_armap (abfd);
1063 bfd_set_error (bfd_error_wrong_format);
1067 else if (CONST_STRNEQ (nextname, "#1/20 "))
1069 /* Mach-O has a special name for armap when the map is sorted by name.
1070 However because this name has a space it is slightly more difficult
1075 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1077 /* Read the extended name. We know its length. */
1078 if (bfd_bread (extname, 20, abfd) != 20)
1080 if (bfd_seek (abfd, (file_ptr) -(sizeof (hdr) + 20), SEEK_CUR) != 0)
1082 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1083 || CONST_STRNEQ (extname, "__.SYMDEF"))
1084 return do_slurp_bsd_armap (abfd);
1087 bfd_has_map (abfd) = FALSE;
1091 /* Returns FALSE on error, TRUE otherwise. */
1092 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1093 header is in a slightly different order and the map name is '/'.
1094 This flavour is used by hp300hpux. */
1096 #define HPUX_SYMDEF_COUNT_SIZE 2
1099 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1101 struct areltdata *mapdata;
1103 unsigned int counter;
1104 bfd_byte *raw_armap, *rbase;
1105 struct artdata *ardata = bfd_ardata (abfd);
1107 unsigned int stringsize;
1111 int i = bfd_bread (nextname, 16, abfd);
1118 /* The archive has at least 16 bytes in it. */
1119 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1122 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1123 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1124 return do_slurp_bsd_armap (abfd);
1126 if (! CONST_STRNEQ (nextname, "/ "))
1128 bfd_has_map (abfd) = FALSE;
1132 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1133 if (mapdata == NULL)
1136 if (mapdata->parsed_size < HPUX_SYMDEF_COUNT_SIZE + BSD_STRING_COUNT_SIZE)
1139 bfd_set_error (bfd_error_wrong_format);
1141 bfd_release (abfd, mapdata);
1144 left = mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE - BSD_STRING_COUNT_SIZE;
1146 amt = mapdata->parsed_size;
1147 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1148 if (raw_armap == NULL)
1151 if (bfd_bread (raw_armap, amt, abfd) != amt)
1153 if (bfd_get_error () != bfd_error_system_call)
1154 bfd_set_error (bfd_error_malformed_archive);
1158 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1162 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1163 if (stringsize > left)
1167 /* Skip sym count and string sz. */
1168 stringbase = ((char *) raw_armap
1169 + HPUX_SYMDEF_COUNT_SIZE
1170 + BSD_STRING_COUNT_SIZE);
1171 rbase = (bfd_byte *) stringbase + stringsize;
1172 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1176 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1177 if (!ardata->symdefs)
1180 for (counter = 0, set = ardata->symdefs;
1181 counter < ardata->symdef_count;
1182 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1184 set->name = H_GET_32 (abfd, rbase) + stringbase;
1185 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1188 ardata->first_file_filepos = bfd_tell (abfd);
1189 /* Pad to an even boundary if you have to. */
1190 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1191 /* FIXME, we should provide some way to free raw_ardata when
1192 we are done using the strings from it. For now, it seems
1193 to be allocated on an objalloc anyway... */
1194 bfd_has_map (abfd) = TRUE;
1198 /** Extended name table.
1200 Normally archives support only 14-character filenames.
1202 Intel has extended the format: longer names are stored in a special
1203 element (the first in the archive, or second if there is an armap);
1204 the name in the ar_hdr is replaced by <space><index into filename
1205 element>. Index is the P.R. of an int (decimal). Data General have
1206 extended the format by using the prefix // for the special element. */
1208 /* Returns FALSE on error, TRUE otherwise. */
1211 _bfd_slurp_extended_name_table (bfd *abfd)
1214 struct areltdata *namedata;
1217 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1218 we probably don't want to return TRUE. */
1219 if (bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET) != 0)
1222 if (bfd_bread (nextname, 16, abfd) == 16)
1224 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1227 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1228 && ! CONST_STRNEQ (nextname, "// "))
1230 bfd_ardata (abfd)->extended_names = NULL;
1231 bfd_ardata (abfd)->extended_names_size = 0;
1235 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1236 if (namedata == NULL)
1239 amt = namedata->parsed_size;
1243 bfd_ardata (abfd)->extended_names_size = amt;
1244 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1245 if (bfd_ardata (abfd)->extended_names == NULL)
1248 bfd_release (abfd, namedata);
1252 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1254 if (bfd_get_error () != bfd_error_system_call)
1255 bfd_set_error (bfd_error_malformed_archive);
1256 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1257 bfd_ardata (abfd)->extended_names = NULL;
1261 /* Since the archive is supposed to be printable if it contains
1262 text, the entries in the list are newline-padded, not null
1263 padded. In SVR4-style archives, the names also have a
1264 trailing '/'. DOS/NT created archive often have \ in them
1265 We'll fix all problems here.. */
1267 char *ext_names = bfd_ardata (abfd)->extended_names;
1268 char *temp = ext_names;
1269 char *limit = temp + namedata->parsed_size;
1270 for (; temp < limit; ++temp)
1272 if (*temp == ARFMAG[1])
1273 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1280 /* Pad to an even boundary if you have to. */
1281 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1282 bfd_ardata (abfd)->first_file_filepos +=
1283 (bfd_ardata (abfd)->first_file_filepos) % 2;
1285 /* FIXME, we can't release namedata here because it was allocated
1286 below extended_names on the objalloc... */
1293 /* Return a copy of the stuff in the filename between any :]> and a
1297 normalize (bfd *abfd, const char *file)
1303 first = file + strlen (file) - 1;
1306 while (first != file)
1310 if (*first == ':' || *first == ']' || *first == '>')
1318 copy = bfd_alloc (abfd, last - first + 1);
1322 memcpy (copy, first, last - first);
1323 copy[last - first] = 0;
1330 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1332 return lbasename (file);
1336 /* Adjust a relative path name based on the reference path. */
1339 adjust_relative_path (const char * path, const char * ref_path)
1341 static char *pathbuf = NULL;
1342 static int pathbuf_len = 0;
1343 const char *pathp = path;
1344 const char *refp = ref_path;
1345 int element_count = 0;
1349 /* Remove common leading path elements. */
1352 const char *e1 = pathp;
1353 const char *e2 = refp;
1355 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1357 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1359 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1360 || filename_ncmp (pathp, refp, e1 - pathp) != 0)
1366 /* For each leading path element in the reference path,
1367 insert "../" into the path. */
1368 for (; *refp; ++refp)
1369 if (IS_DIR_SEPARATOR (*refp))
1371 len = 3 * element_count + strlen (path) + 1;
1373 if (len > pathbuf_len)
1375 if (pathbuf != NULL)
1378 pathbuf = (char *) bfd_malloc (len);
1379 if (pathbuf == NULL)
1385 while (element_count-- > 0)
1387 /* FIXME: Support Windows style path separators as well. */
1388 strcpy (newp, "../");
1391 strcpy (newp, pathp);
1396 /* Build a BFD style extended name table. */
1399 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1401 bfd_size_type *tablen,
1404 *name = "ARFILENAMES/";
1405 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1408 /* Build an SVR4 style extended name table. */
1411 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1413 bfd_size_type *tablen,
1417 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1420 /* Follows archive_head and produces an extended name table if
1421 necessary. Returns (in tabloc) a pointer to an extended name
1422 table, and in tablen the length of the table. If it makes an entry
1423 it clobbers the filename so that the element may be written without
1424 further massage. Returns TRUE if it ran successfully, FALSE if
1425 something went wrong. A successful return may still involve a
1426 zero-length tablen! */
1429 _bfd_construct_extended_name_table (bfd *abfd,
1430 bfd_boolean trailing_slash,
1432 bfd_size_type *tablen)
1434 unsigned int maxname = abfd->xvec->ar_max_namelen;
1435 bfd_size_type total_namelen = 0;
1438 const char *last_filename;
1442 last_filename = NULL;
1444 /* Figure out how long the table should be. */
1445 for (current = abfd->archive_head;
1447 current = current->archive_next)
1450 unsigned int thislen;
1452 if (bfd_is_thin_archive (abfd))
1454 const char *filename = current->filename;
1456 /* If the element being added is a member of another archive
1457 (i.e., we are flattening), use the containing archive's name. */
1458 if (current->my_archive
1459 && ! bfd_is_thin_archive (current->my_archive))
1460 filename = current->my_archive->filename;
1462 /* If the path is the same as the previous path seen,
1463 reuse it. This can happen when flattening a thin
1464 archive that contains other archives. */
1465 if (last_filename && filename_cmp (last_filename, filename) == 0)
1468 last_filename = filename;
1470 /* If the path is relative, adjust it relative to
1471 the containing archive. */
1472 if (! IS_ABSOLUTE_PATH (filename)
1473 && ! IS_ABSOLUTE_PATH (abfd->filename))
1474 normal = adjust_relative_path (filename, abfd->filename);
1478 /* In a thin archive, always store the full pathname
1479 in the extended name table. */
1480 total_namelen += strlen (normal) + 1;
1482 /* Leave room for trailing slash. */
1488 normal = normalize (current, current->filename);
1492 thislen = strlen (normal);
1494 if (thislen > maxname
1495 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1498 if (thislen > maxname)
1500 /* Add one to leave room for \n. */
1501 total_namelen += thislen + 1;
1504 /* Leave room for trailing slash. */
1510 struct ar_hdr *hdr = arch_hdr (current);
1511 if (filename_ncmp (normal, hdr->ar_name, thislen) != 0
1512 || (thislen < sizeof hdr->ar_name
1513 && hdr->ar_name[thislen] != ar_padchar (current)))
1515 /* Must have been using extended format even though it
1516 didn't need to. Fix it to use normal format. */
1517 memcpy (hdr->ar_name, normal, thislen);
1518 if (thislen < maxname
1519 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1520 hdr->ar_name[thislen] = ar_padchar (current);
1525 if (total_namelen == 0)
1528 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1529 if (*tabloc == NULL)
1532 *tablen = total_namelen;
1535 last_filename = NULL;
1538 for (current = abfd->archive_head;
1540 current = current->archive_next)
1543 unsigned int thislen;
1545 const char *filename = current->filename;
1547 if (bfd_is_thin_archive (abfd))
1549 /* If the element being added is a member of another archive
1550 (i.e., we are flattening), use the containing archive's name. */
1551 if (current->my_archive
1552 && ! bfd_is_thin_archive (current->my_archive))
1553 filename = current->my_archive->filename;
1554 /* If the path is the same as the previous path seen,
1555 reuse it. This can happen when flattening a thin
1556 archive that contains other archives.
1557 If the path is relative, adjust it relative to
1558 the containing archive. */
1559 if (last_filename && filename_cmp (last_filename, filename) == 0)
1560 normal = last_filename;
1561 else if (! IS_ABSOLUTE_PATH (filename)
1562 && ! IS_ABSOLUTE_PATH (abfd->filename))
1563 normal = adjust_relative_path (filename, abfd->filename);
1569 normal = normalize (current, filename);
1574 thislen = strlen (normal);
1575 if (thislen > maxname || bfd_is_thin_archive (abfd))
1577 /* Works for now; may need to be re-engineered if we
1578 encounter an oddball archive format and want to
1579 generalise this hack. */
1580 struct ar_hdr *hdr = arch_hdr (current);
1581 if (normal == last_filename)
1582 stroff = last_stroff;
1585 strcpy (strptr, normal);
1586 if (! trailing_slash)
1587 strptr[thislen] = ARFMAG[1];
1590 strptr[thislen] = '/';
1591 strptr[thislen + 1] = ARFMAG[1];
1593 stroff = strptr - *tabloc;
1594 last_stroff = stroff;
1596 hdr->ar_name[0] = ar_padchar (current);
1597 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1599 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1601 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1603 current->origin - sizeof (struct ar_hdr));
1606 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1607 if (normal != last_filename)
1609 strptr += thislen + 1;
1612 last_filename = filename;
1620 /* Do not construct an extended name table but transforms name field into
1621 its extended form. */
1624 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1626 bfd_size_type *tablen,
1629 unsigned int maxname = abfd->xvec->ar_max_namelen;
1636 for (current = abfd->archive_head;
1638 current = current->archive_next)
1640 const char *normal = normalize (current, current->filename);
1647 for (len = 0; normal[len]; len++)
1648 if (normal[len] == ' ')
1651 if (len > maxname || has_space)
1653 struct ar_hdr *hdr = arch_hdr (current);
1655 len = (len + 3) & ~3;
1656 arch_eltdata (current)->extra_size = len;
1657 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1664 /* Write an archive header. */
1667 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1669 struct ar_hdr *hdr = arch_hdr (abfd);
1671 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1676 /* Write an archive header using BSD4.4 convention. */
1679 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1681 struct ar_hdr *hdr = arch_hdr (abfd);
1683 if (is_bsd44_extended_name (hdr->ar_name))
1685 /* This is a BSD 4.4 extended name. */
1686 const char *fullname = normalize (abfd, abfd->filename);
1687 unsigned int len = strlen (fullname);
1688 unsigned int padded_len = (len + 3) & ~3;
1690 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1692 _bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
1693 arch_eltdata (abfd)->parsed_size + padded_len);
1695 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1698 if (bfd_bwrite (fullname, len, archive) != len)
1702 static const char pad[3] = { 0, 0, 0 };
1704 len = 4 - (len & 3);
1705 if (bfd_bwrite (pad, len, archive) != len)
1711 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1717 /* A couple of functions for creating ar_hdrs. */
1719 #ifdef HPUX_LARGE_AR_IDS
1720 /* Function to encode large UID/GID values according to HP. */
1723 hpux_uid_gid_encode (char str[6], long int id)
1727 str[5] = '@' + (id & 3);
1730 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1731 str[cnt] = ' ' + (id & 0x3f);
1733 #endif /* HPUX_LARGE_AR_IDS */
1743 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1744 make one. The filename must refer to a filename in the filesystem.
1745 The filename field of the ar_hdr will NOT be initialized. If member
1746 is set, and it's an in-memory bfd, we fake it. */
1748 static struct areltdata *
1749 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1752 struct areltdata *ared;
1756 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1758 /* Assume we just "made" the member, and fake it. */
1759 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1760 time (&status.st_mtime);
1761 status.st_uid = getuid ();
1762 status.st_gid = getgid ();
1763 status.st_mode = 0644;
1764 status.st_size = bim->size;
1766 else if (stat (filename, &status) != 0)
1768 bfd_set_error (bfd_error_system_call);
1772 /* If the caller requested that the BFD generate deterministic output,
1773 fake values for modification time, UID, GID, and file mode. */
1774 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1776 status.st_mtime = 0;
1779 status.st_mode = 0644;
1782 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1783 ared = (struct areltdata *) bfd_zalloc (abfd, amt);
1786 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1788 /* ar headers are space padded, not null padded! */
1789 memset (hdr, ' ', sizeof (struct ar_hdr));
1791 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1793 #ifdef HPUX_LARGE_AR_IDS
1794 /* HP has a very "special" way to handle UID/GID's with numeric values
1796 if (status.st_uid > 99999)
1797 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1800 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1802 #ifdef HPUX_LARGE_AR_IDS
1803 /* HP has a very "special" way to handle UID/GID's with numeric values
1805 if (status.st_gid > 99999)
1806 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1809 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1811 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1813 _bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
1815 memcpy (hdr->ar_fmag, ARFMAG, 2);
1816 ared->parsed_size = status.st_size;
1817 ared->arch_header = (char *) hdr;
1822 /* Analogous to stat call. */
1825 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1830 if (abfd->arelt_data == NULL)
1832 bfd_set_error (bfd_error_invalid_operation);
1836 hdr = arch_hdr (abfd);
1838 #define foo(arelt, stelt, size) \
1839 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1840 if (aloser == hdr->arelt) \
1843 /* Some platforms support special notations for large IDs. */
1844 #ifdef HPUX_LARGE_AR_IDS
1845 # define foo2(arelt, stelt, size) \
1846 if (hdr->arelt[5] == ' ') \
1848 foo (arelt, stelt, size); \
1853 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1855 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1858 buf->stelt += hdr->arelt[cnt] - ' '; \
1860 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1863 buf->stelt += hdr->arelt[5] - '@'; \
1866 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1869 foo (ar_date, st_mtime, 10);
1870 foo2 (ar_uid, st_uid, 10);
1871 foo2 (ar_gid, st_gid, 10);
1872 foo (ar_mode, st_mode, 8);
1874 buf->st_size = arch_eltdata (abfd)->parsed_size;
1880 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1882 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1883 Fortunately ic960 users will never use that option. Fixing this
1884 is very hard; fortunately I know how to do it and will do so once
1885 intel's release is out the door. */
1887 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1889 const char *filename;
1890 size_t maxlen = ar_maxnamelen (abfd);
1892 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1894 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
1898 filename = normalize (abfd, pathname);
1899 if (filename == NULL)
1905 length = strlen (filename);
1907 if (length <= maxlen)
1908 memcpy (hdr->ar_name, filename, length);
1910 /* Add the padding character if there is room for it. */
1912 || (length == maxlen && length < sizeof hdr->ar_name))
1913 (hdr->ar_name)[length] = ar_padchar (abfd);
1917 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1919 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1921 const char *filename = lbasename (pathname);
1922 size_t maxlen = ar_maxnamelen (abfd);
1924 length = strlen (filename);
1926 if (length <= maxlen)
1927 memcpy (hdr->ar_name, filename, length);
1930 /* pathname: meet procrustes */
1931 memcpy (hdr->ar_name, filename, maxlen);
1935 if (length < maxlen)
1936 (hdr->ar_name)[length] = ar_padchar (abfd);
1939 /* Store name into ar header. Truncates the name to fit.
1940 1> strip pathname to be just the basename.
1941 2> if it's short enuf to fit, stuff it in.
1942 3> If it doesn't end with .o, truncate it to fit
1943 4> truncate it before the .o, append .o, stuff THAT in. */
1945 /* This is what gnu ar does. It's better but incompatible with the
1949 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1951 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1953 const char *filename = lbasename (pathname);
1954 size_t maxlen = ar_maxnamelen (abfd);
1956 length = strlen (filename);
1958 if (length <= maxlen)
1959 memcpy (hdr->ar_name, filename, length);
1962 /* pathname: meet procrustes. */
1963 memcpy (hdr->ar_name, filename, maxlen);
1964 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
1966 hdr->ar_name[maxlen - 2] = '.';
1967 hdr->ar_name[maxlen - 1] = 'o';
1973 (hdr->ar_name)[length] = ar_padchar (abfd);
1976 /* The BFD is open for write and has its format set to bfd_archive. */
1979 _bfd_write_archive_contents (bfd *arch)
1982 char *etable = NULL;
1983 bfd_size_type elength = 0;
1984 const char *ename = NULL;
1985 bfd_boolean makemap = bfd_has_map (arch);
1986 /* If no .o's, don't bother to make a map. */
1987 bfd_boolean hasobjects = FALSE;
1988 bfd_size_type wrote;
1992 /* Verify the viability of all entries; if any of them live in the
1993 filesystem (as opposed to living in an archive open for input)
1994 then construct a fresh ar_hdr for them. */
1995 for (current = arch->archive_head;
1997 current = current->archive_next)
1999 /* This check is checking the bfds for the objects we're reading
2000 from (which are usually either an object file or archive on
2001 disk), not the archive entries we're writing to. We don't
2002 actually create bfds for the archive members, we just copy
2003 them byte-wise when we write out the archive. */
2004 if (bfd_write_p (current))
2006 bfd_set_error (bfd_error_invalid_operation);
2009 if (!current->arelt_data)
2011 current->arelt_data =
2012 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2013 if (!current->arelt_data)
2016 /* Put in the file name. */
2017 BFD_SEND (arch, _bfd_truncate_arname,
2018 (arch, current->filename, (char *) arch_hdr (current)));
2021 if (makemap && ! hasobjects)
2022 { /* Don't bother if we won't make a map! */
2023 if ((bfd_check_format (current, bfd_object)))
2028 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2029 (arch, &etable, &elength, &ename)))
2032 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2035 if (bfd_is_thin_archive (arch))
2037 wrote = bfd_bwrite (armag, SARMAG, arch);
2038 if (wrote != SARMAG)
2041 if (makemap && hasobjects)
2043 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2051 memset (&hdr, ' ', sizeof (struct ar_hdr));
2052 memcpy (hdr.ar_name, ename, strlen (ename));
2053 /* Round size up to even number in archive header. */
2054 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
2055 (elength + 1) & ~(bfd_size_type) 1);
2056 memcpy (hdr.ar_fmag, ARFMAG, 2);
2057 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2058 != sizeof (struct ar_hdr))
2059 || bfd_bwrite (etable, elength, arch) != elength)
2061 if ((elength % 2) == 1)
2063 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2068 for (current = arch->archive_head;
2070 current = current->archive_next)
2072 char buffer[DEFAULT_BUFFERSIZE];
2073 unsigned int remaining = arelt_size (current);
2075 /* Write ar header. */
2076 if (!_bfd_write_ar_hdr (arch, current))
2078 if (bfd_is_thin_archive (arch))
2080 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2085 unsigned int amt = DEFAULT_BUFFERSIZE;
2087 if (amt > remaining)
2090 if (bfd_bread (buffer, amt, current) != amt)
2092 if (bfd_get_error () != bfd_error_system_call)
2093 bfd_set_error (bfd_error_file_truncated);
2096 if (bfd_bwrite (buffer, amt, arch) != amt)
2101 if ((arelt_size (current) % 2) == 1)
2103 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2108 if (makemap && hasobjects)
2110 /* Verify the timestamp in the archive file. If it would not be
2111 accepted by the linker, rewrite it until it would be. If
2112 anything odd happens, break out and just return. (The
2113 Berkeley linker checks the timestamp and refuses to read the
2114 table-of-contents if it is >60 seconds less than the file's
2115 modified-time. That painful hack requires this painful hack. */
2119 if (bfd_update_armap_timestamp (arch))
2121 (*_bfd_error_handler)
2122 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2124 while (++tries < 6);
2130 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2134 /* Note that the namidx for the first symbol is 0. */
2137 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2139 char *first_name = NULL;
2141 file_ptr elt_no = 0;
2142 struct orl *map = NULL;
2143 unsigned int orl_max = 1024; /* Fine initial default. */
2144 unsigned int orl_count = 0;
2146 asymbol **syms = NULL;
2151 /* Dunno if this is the best place for this info... */
2153 elength += sizeof (struct ar_hdr);
2154 elength += elength % 2;
2156 amt = orl_max * sizeof (struct orl);
2157 map = (struct orl *) bfd_malloc (amt);
2161 /* We put the symbol names on the arch objalloc, and then discard
2163 first_name = (char *) bfd_alloc (arch, 1);
2164 if (first_name == NULL)
2167 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2168 while (arch->archive_head
2169 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2170 arch->archive_head = arch->archive_head->archive_next;
2172 /* Map over each element. */
2173 for (current = arch->archive_head;
2175 current = current->archive_next, elt_no++)
2177 if (bfd_check_format (current, bfd_object)
2178 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2184 storage = bfd_get_symtab_upper_bound (current);
2190 if (storage > syms_max)
2195 syms = (asymbol **) bfd_malloc (syms_max);
2199 symcount = bfd_canonicalize_symtab (current, syms);
2203 /* Now map over all the symbols, picking out the ones we
2205 for (src_count = 0; src_count < symcount; src_count++)
2207 flagword flags = (syms[src_count])->flags;
2208 asection *sec = syms[src_count]->section;
2210 if ((flags & BSF_GLOBAL
2212 || flags & BSF_INDIRECT
2213 || flags & BSF_GNU_UNIQUE
2214 || bfd_is_com_section (sec))
2215 && ! bfd_is_und_section (sec))
2217 bfd_size_type namelen;
2218 struct orl *new_map;
2220 /* This symbol will go into the archive header. */
2221 if (orl_count == orl_max)
2224 amt = orl_max * sizeof (struct orl);
2225 new_map = (struct orl *) bfd_realloc (map, amt);
2226 if (new_map == NULL)
2232 namelen = strlen (syms[src_count]->name);
2233 amt = sizeof (char *);
2234 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2235 if (map[orl_count].name == NULL)
2237 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2239 if (*(map[orl_count].name) == NULL)
2241 strcpy (*(map[orl_count].name), syms[src_count]->name);
2242 map[orl_count].u.abfd = current;
2243 map[orl_count].namidx = stridx;
2245 stridx += namelen + 1;
2251 /* Now ask the BFD to free up any cached information, so we
2252 don't fill all of memory with symbol tables. */
2253 if (! bfd_free_cached_info (current))
2258 /* OK, now we have collected all the data, let's write them out. */
2259 ret = BFD_SEND (arch, write_armap,
2260 (arch, elength, map, orl_count, stridx));
2266 if (first_name != NULL)
2267 bfd_release (arch, first_name);
2276 if (first_name != NULL)
2277 bfd_release (arch, first_name);
2283 bsd_write_armap (bfd *arch,
2284 unsigned int elength,
2286 unsigned int orl_count,
2289 int padit = stridx & 1;
2290 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2291 unsigned int stringsize = stridx + padit;
2292 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2293 unsigned int mapsize = ranlibsize + stringsize + 8;
2295 bfd *current = arch->archive_head;
2296 bfd *last_elt = current; /* Last element arch seen. */
2302 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2304 /* If deterministic, we use 0 as the timestamp in the map.
2305 Some linkers may require that the archive filesystem modification
2306 time is less than (or near to) the archive map timestamp. Those
2307 linkers should not be used with deterministic mode. (GNU ld and
2308 Gold do not have this restriction.) */
2309 bfd_ardata (arch)->armap_timestamp = 0;
2312 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2314 struct stat statbuf;
2316 if (stat (arch->filename, &statbuf) == 0)
2317 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2318 + ARMAP_TIME_OFFSET);
2323 memset (&hdr, ' ', sizeof (struct ar_hdr));
2324 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2325 bfd_ardata (arch)->armap_datepos = (SARMAG
2326 + offsetof (struct ar_hdr, ar_date[0]));
2327 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2328 bfd_ardata (arch)->armap_timestamp);
2329 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2330 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2331 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld", mapsize);
2332 memcpy (hdr.ar_fmag, ARFMAG, 2);
2333 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2334 != sizeof (struct ar_hdr))
2336 H_PUT_32 (arch, ranlibsize, temp);
2337 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2340 for (count = 0; count < orl_count; count++)
2342 bfd_byte buf[BSD_SYMDEF_SIZE];
2344 if (map[count].u.abfd != last_elt)
2348 struct areltdata *ared = arch_eltdata (current);
2350 firstreal += (ared->parsed_size + ared->extra_size
2351 + sizeof (struct ar_hdr));
2352 firstreal += firstreal % 2;
2353 current = current->archive_next;
2355 while (current != map[count].u.abfd);
2359 H_PUT_32 (arch, map[count].namidx, buf);
2360 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2361 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2366 /* Now write the strings themselves. */
2367 H_PUT_32 (arch, stringsize, temp);
2368 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2370 for (count = 0; count < orl_count; count++)
2372 size_t len = strlen (*map[count].name) + 1;
2374 if (bfd_bwrite (*map[count].name, len, arch) != len)
2378 /* The spec sez this should be a newline. But in order to be
2379 bug-compatible for sun's ar we use a null. */
2382 if (bfd_bwrite ("", 1, arch) != 1)
2389 /* At the end of archive file handling, update the timestamp in the
2390 file, so the linker will accept it.
2392 Return TRUE if the timestamp was OK, or an unusual problem happened.
2393 Return FALSE if we updated the timestamp. */
2396 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2398 struct stat archstat;
2401 /* If creating deterministic archives, just leave the timestamp as-is. */
2402 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2405 /* Flush writes, get last-write timestamp from file, and compare it
2406 to the timestamp IN the file. */
2408 if (bfd_stat (arch, &archstat) == -1)
2410 bfd_perror (_("Reading archive file mod timestamp"));
2412 /* Can't read mod time for some reason. */
2415 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2416 /* OK by the linker's rules. */
2419 /* Update the timestamp. */
2420 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2422 /* Prepare an ASCII version suitable for writing. */
2423 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2424 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2425 bfd_ardata (arch)->armap_timestamp);
2427 /* Write it into the file. */
2428 bfd_ardata (arch)->armap_datepos = (SARMAG
2429 + offsetof (struct ar_hdr, ar_date[0]));
2430 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2431 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2432 != sizeof (hdr.ar_date)))
2434 bfd_perror (_("Writing updated armap timestamp"));
2436 /* Some error while writing. */
2440 /* We updated the timestamp successfully. */
2444 /* A coff armap looks like :
2446 struct ar_hdr with name = '/'
2448 offset of file for symbol 0
2449 offset of file for symbol 1
2451 offset of file for symbol n-1
2458 coff_write_armap (bfd *arch,
2459 unsigned int elength,
2461 unsigned int symbol_count,
2464 /* The size of the ranlib is the number of exported symbols in the
2465 archive * the number of bytes in an int, + an int for the count. */
2466 unsigned int ranlibsize = (symbol_count * 4) + 4;
2467 unsigned int stringsize = stridx;
2468 unsigned int mapsize = stringsize + ranlibsize;
2469 unsigned int archive_member_file_ptr;
2470 bfd *current = arch->archive_head;
2473 int padit = mapsize & 1;
2478 /* Work out where the first object file will go in the archive. */
2479 archive_member_file_ptr = (mapsize
2481 + sizeof (struct ar_hdr)
2484 memset (&hdr, ' ', sizeof (struct ar_hdr));
2485 hdr.ar_name[0] = '/';
2486 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
2488 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2489 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2490 ? time (NULL) : 0));
2491 /* This, at least, is what Intel coff sets the values to. */
2492 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2493 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2494 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2495 memcpy (hdr.ar_fmag, ARFMAG, 2);
2497 /* Write the ar header for this item and the number of symbols. */
2498 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2499 != sizeof (struct ar_hdr))
2502 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2505 /* Two passes, first write the file offsets for each symbol -
2506 remembering that each offset is on a two byte boundary. */
2508 /* Write out the file offset for the file associated with each
2509 symbol, and remember to keep the offsets padded out. */
2511 current = arch->archive_head;
2513 while (current != NULL && count < symbol_count)
2515 /* For each symbol which is used defined in this object, write
2516 out the object file's address in the archive. */
2518 while (count < symbol_count && map[count].u.abfd == current)
2520 if (!bfd_write_bigendian_4byte_int (arch, archive_member_file_ptr))
2524 archive_member_file_ptr += sizeof (struct ar_hdr);
2525 if (! bfd_is_thin_archive (arch))
2527 /* Add size of this archive entry. */
2528 archive_member_file_ptr += arelt_size (current);
2529 /* Remember about the even alignment. */
2530 archive_member_file_ptr += archive_member_file_ptr % 2;
2532 current = current->archive_next;
2535 /* Now write the strings themselves. */
2536 for (count = 0; count < symbol_count; count++)
2538 size_t len = strlen (*map[count].name) + 1;
2540 if (bfd_bwrite (*map[count].name, len, arch) != len)
2544 /* The spec sez this should be a newline. But in order to be
2545 bug-compatible for arc960 we use a null. */
2548 if (bfd_bwrite ("", 1, arch) != 1)