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
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.
107 We currently can read BSD 4.4 archives, but not write them.
110 /* Summary of archive member names:
112 Symbol table (must be first):
113 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
114 "/ " - Symbol table, system 5 style.
116 Long name table (must be before regular file members):
117 "// " - Long name table, System 5 R4 style.
118 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
120 Regular file members with short names:
121 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
122 "filename.o " - Regular file, Berkeley style (no embedded spaces).
124 Regular files with long names (or embedded spaces, for BSD variants):
125 "/18 " - SVR4 style, name at offset 18 in name table.
126 "#1/23 " - Long name (or embedded spaces) 23 characters long,
127 BSD 4.4 style, full name follows header.
128 Implemented for reading, not writing.
129 " 18 " - Long name 18 characters long, extended pseudo-BSD.
134 #include "libiberty.h"
137 #include "aout/ranlib.h"
138 #include "safe-ctype.h"
140 #include "filenames.h"
146 /* We keep a cache of archive filepointers to archive elements to
147 speed up searching the archive by filepos. We only add an entry to
148 the cache when we actually read one. We also don't sort the cache;
149 it's generally short enough to search linearly.
150 Note that the pointers here point to the front of the ar_hdr, not
151 to the front of the contents! */
157 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
158 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
160 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
161 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
164 _bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
168 snprintf (buf, sizeof (buf), fmt, val);
172 memcpy (p, buf, len);
173 memset (p + len, ' ', n - len);
180 _bfd_generic_mkarchive (bfd *abfd)
182 bfd_size_type amt = sizeof (struct artdata);
184 abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc (abfd, amt);
185 if (bfd_ardata (abfd) == NULL)
188 /* Already cleared by bfd_zalloc above.
189 bfd_ardata (abfd)->cache = NULL;
190 bfd_ardata (abfd)->archive_head = NULL;
191 bfd_ardata (abfd)->symdefs = NULL;
192 bfd_ardata (abfd)->extended_names = NULL;
193 bfd_ardata (abfd)->extended_names_size = 0;
194 bfd_ardata (abfd)->tdata = NULL; */
204 symindex bfd_get_next_mapent
205 (bfd *abfd, symindex previous, carsym **sym);
208 Step through archive @var{abfd}'s symbol table (if it
209 has one). Successively update @var{sym} with the next symbol's
210 information, returning that symbol's (internal) index into the
213 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
214 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
217 A <<carsym>> is a canonical archive symbol. The only
218 user-visible element is its name, a null-terminated string.
222 bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
224 if (!bfd_has_map (abfd))
226 bfd_set_error (bfd_error_invalid_operation);
227 return BFD_NO_MORE_SYMBOLS;
230 if (prev == BFD_NO_MORE_SYMBOLS)
234 if (prev >= bfd_ardata (abfd)->symdef_count)
235 return BFD_NO_MORE_SYMBOLS;
237 *entry = (bfd_ardata (abfd)->symdefs + prev);
241 /* To be called by backends only. */
244 _bfd_create_empty_archive_element_shell (bfd *obfd)
246 return _bfd_new_bfd_contained_in (obfd);
254 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
257 Set the head of the chain of
258 BFDs contained in the archive @var{output} to @var{new_head}.
262 bfd_set_archive_head (bfd *output_archive, bfd *new_head)
264 output_archive->archive_head = new_head;
269 _bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
271 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
277 struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
288 hash_file_ptr (const PTR p)
290 return (hashval_t) (((struct ar_cache *) p)->ptr);
293 /* Returns non-zero if P1 and P2 are equal. */
296 eq_file_ptr (const PTR p1, const PTR p2)
298 struct ar_cache *arc1 = (struct ar_cache *) p1;
299 struct ar_cache *arc2 = (struct ar_cache *) p2;
300 return arc1->ptr == arc2->ptr;
303 /* Kind of stupid to call cons for each one, but we don't do too many. */
306 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
308 struct ar_cache *cache;
309 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
311 /* If the hash table hasn't been created, create it. */
312 if (hash_table == NULL)
314 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
316 if (hash_table == NULL)
318 bfd_ardata (arch_bfd)->cache = hash_table;
321 /* Insert new_elt into the hash table by filepos. */
322 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
323 cache->ptr = filepos;
324 cache->arbfd = new_elt;
325 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
331 _bfd_find_nested_archive (bfd *arch_bfd, const char *filename)
335 for (abfd = arch_bfd->nested_archives;
337 abfd = abfd->archive_next)
339 if (strcmp (filename, abfd->filename) == 0)
342 abfd = bfd_openr (filename, NULL);
345 abfd->archive_next = arch_bfd->nested_archives;
346 arch_bfd->nested_archives = abfd;
351 /* The name begins with space. Hence the rest of the name is an index into
355 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
357 unsigned long table_index = 0;
360 /* Should extract string so that I can guarantee not to overflow into
361 the next region, but I'm too lazy. */
363 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
364 table_index = strtol (name + 1, (char **) &endp, 10);
365 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
367 bfd_set_error (bfd_error_malformed_archive);
370 /* In a thin archive, a member of an archive-within-an-archive
371 will have the offset in the inner archive encoded here. */
372 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
374 file_ptr origin = strtol (endp + 1, NULL, 10);
378 bfd_set_error (bfd_error_malformed_archive);
386 return bfd_ardata (arch)->extended_names + table_index;
389 /* This functions reads an arch header and returns an areltdata pointer, or
392 Presumes the file pointer is already in the right place (ie pointing
393 to the ar_hdr in the file). Moves the file pointer; on success it
394 should be pointing to the front of the file contents; on failure it
395 could have been moved arbitrarily. */
398 _bfd_generic_read_ar_hdr (bfd *abfd)
400 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
403 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
404 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
407 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
410 char *hdrp = (char *) &hdr;
412 struct areltdata *ared;
413 char *filename = NULL;
414 bfd_size_type namelen = 0;
415 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
419 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
421 if (bfd_get_error () != bfd_error_system_call)
422 bfd_set_error (bfd_error_no_more_archived_files);
425 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
427 || strncmp (hdr.ar_fmag, mag, 2) != 0))
429 bfd_set_error (bfd_error_malformed_archive);
434 parsed_size = strtol (hdr.ar_size, NULL, 10);
437 bfd_set_error (bfd_error_malformed_archive);
441 /* Extract the filename from the archive - there are two ways to
442 specify an extended name table, either the first char of the
443 name is a space, or it's a slash. */
444 if ((hdr.ar_name[0] == '/'
445 || (hdr.ar_name[0] == ' '
446 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
447 && bfd_ardata (abfd)->extended_names != NULL)
449 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
450 if (filename == NULL)
453 /* BSD4.4-style long filename.
454 Only implemented for reading, so far! */
455 else if (hdr.ar_name[0] == '#'
456 && hdr.ar_name[1] == '1'
457 && hdr.ar_name[2] == '/'
458 && ISDIGIT (hdr.ar_name[3]))
460 /* BSD-4.4 extended name */
461 namelen = atoi (&hdr.ar_name[3]);
462 allocsize += namelen + 1;
463 parsed_size -= namelen;
465 allocptr = (char *) bfd_zalloc (abfd, allocsize);
466 if (allocptr == NULL)
469 + sizeof (struct areltdata)
470 + sizeof (struct ar_hdr));
471 if (bfd_bread (filename, namelen, abfd) != namelen)
473 if (bfd_get_error () != bfd_error_system_call)
474 bfd_set_error (bfd_error_no_more_archived_files);
477 filename[namelen] = '\0';
481 /* We judge the end of the name by looking for '/' or ' '.
482 Note: The SYSV format (terminated by '/') allows embedded
483 spaces, so only look for ' ' if we don't find '/'. */
486 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
489 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
491 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
495 namelen = e - hdr.ar_name;
498 /* If we didn't find a termination character, then the name
499 must be the entire field. */
500 namelen = ar_maxnamelen (abfd);
503 allocsize += namelen + 1;
508 allocptr = (char *) bfd_zalloc (abfd, allocsize);
509 if (allocptr == NULL)
513 ared = (struct areltdata *) allocptr;
515 ared->arch_header = allocptr + sizeof (struct areltdata);
516 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
517 ared->parsed_size = parsed_size;
518 ared->origin = origin;
520 if (filename != NULL)
521 ared->filename = filename;
524 ared->filename = allocptr + (sizeof (struct areltdata) +
525 sizeof (struct ar_hdr));
527 memcpy (ared->filename, hdr.ar_name, namelen);
528 ared->filename[namelen] = '\0';
534 /* Append the relative pathname for a member of the thin archive
535 to the pathname of the directory containing the archive. */
538 append_relative_path (bfd *arch, char *elt_name)
540 const char *arch_name = arch->filename;
541 const char *base_name = lbasename (arch_name);
545 if (base_name == arch_name)
548 prefix_len = base_name - arch_name;
549 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
550 if (filename == NULL)
553 strncpy (filename, arch_name, prefix_len);
554 strcpy (filename + prefix_len, elt_name);
558 /* This is an internal function; it's mainly used when indexing
559 through the archive symbol table, but also used to get the next
560 element, since it handles the bookkeeping so nicely for us. */
563 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
565 struct areltdata *new_areldata;
569 if (archive->my_archive)
571 filepos += archive->origin;
572 archive = archive->my_archive;
575 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
579 if (0 > bfd_seek (archive, filepos, SEEK_SET))
582 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
585 filename = new_areldata->filename;
587 if (bfd_is_thin_archive (archive))
589 /* This is a proxy entry for an external file. */
590 if (! IS_ABSOLUTE_PATH (filename))
592 filename = append_relative_path (archive, filename);
593 if (filename == NULL)
597 if (new_areldata->origin > 0)
599 /* This proxy entry refers to an element of a nested archive.
600 Locate the member of that archive and return a bfd for it. */
601 bfd *ext_arch = _bfd_find_nested_archive (archive, filename);
604 || ! bfd_check_format (ext_arch, bfd_archive))
606 bfd_release (archive, new_areldata);
609 n_nfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
612 bfd_release (archive, new_areldata);
615 n_nfd->proxy_origin = bfd_tell (archive);
618 /* It's not an element of a nested archive;
619 open the external file as a bfd. */
620 n_nfd = bfd_openr (filename, NULL);
624 n_nfd = _bfd_create_empty_archive_element_shell (archive);
629 bfd_release (archive, new_areldata);
633 n_nfd->proxy_origin = bfd_tell (archive);
635 if (bfd_is_thin_archive (archive))
641 n_nfd->origin = n_nfd->proxy_origin;
642 n_nfd->filename = filename;
645 n_nfd->arelt_data = new_areldata;
647 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
651 /* FIXME: n_nfd isn't allocated in the archive's memory pool.
652 If we reach this point, I think bfd_release will abort. */
653 bfd_release (archive, n_nfd);
654 bfd_release (archive, new_areldata);
658 /* Return the BFD which is referenced by the symbol in ABFD indexed by
659 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
662 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
666 entry = bfd_ardata (abfd)->symdefs + sym_index;
667 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
672 bfd_openr_next_archived_file
675 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
678 Provided a BFD, @var{archive}, containing an archive and NULL, open
679 an input BFD on the first contained element and returns that.
680 Subsequent calls should pass
681 the archive and the previous return value to return a created
682 BFD to the next contained element. NULL is returned when there
687 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
689 if ((bfd_get_format (archive) != bfd_archive)
690 || (archive->direction == write_direction))
692 bfd_set_error (bfd_error_invalid_operation);
696 return BFD_SEND (archive,
697 openr_next_archived_file, (archive, last_file));
701 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
706 filestart = bfd_ardata (archive)->first_file_filepos;
709 unsigned int size = arelt_size (last_file);
710 filestart = last_file->proxy_origin;
711 if (! bfd_is_thin_archive (archive))
713 if (archive->my_archive)
714 filestart -= archive->origin;
715 /* Pad to an even boundary...
716 Note that last_file->origin can be odd in the case of
717 BSD-4.4-style element with a long odd size. */
718 filestart += filestart % 2;
721 return _bfd_get_elt_at_filepos (archive, filestart);
725 bfd_generic_archive_p (bfd *abfd)
727 struct artdata *tdata_hold;
728 char armag[SARMAG + 1];
731 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
733 if (bfd_get_error () != bfd_error_system_call)
734 bfd_set_error (bfd_error_wrong_format);
738 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
740 if (strncmp (armag, ARMAG, SARMAG) != 0
741 && strncmp (armag, ARMAGB, SARMAG) != 0
742 && ! bfd_is_thin_archive (abfd))
745 tdata_hold = bfd_ardata (abfd);
747 amt = sizeof (struct artdata);
748 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
749 if (bfd_ardata (abfd) == NULL)
751 bfd_ardata (abfd) = tdata_hold;
755 bfd_ardata (abfd)->first_file_filepos = SARMAG;
756 /* Cleared by bfd_zalloc above.
757 bfd_ardata (abfd)->cache = NULL;
758 bfd_ardata (abfd)->archive_head = NULL;
759 bfd_ardata (abfd)->symdefs = NULL;
760 bfd_ardata (abfd)->extended_names = NULL;
761 bfd_ardata (abfd)->extended_names_size = 0;
762 bfd_ardata (abfd)->tdata = NULL; */
764 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
765 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
767 if (bfd_get_error () != bfd_error_system_call)
768 bfd_set_error (bfd_error_wrong_format);
769 bfd_release (abfd, bfd_ardata (abfd));
770 bfd_ardata (abfd) = tdata_hold;
774 if (bfd_has_map (abfd))
778 /* This archive has a map, so we may presume that the contents
779 are object files. Make sure that if the first file in the
780 archive can be recognized as an object file, it is for this
781 target. If not, assume that this is the wrong format. If
782 the first file is not an object file, somebody is doing
783 something weird, and we permit it so that ar -t will work.
785 This is done because any normal format will recognize any
786 normal archive, regardless of the format of the object files.
787 We do accept an empty archive. */
789 first = bfd_openr_next_archived_file (abfd, NULL);
792 first->target_defaulted = FALSE;
793 if (bfd_check_format (first, bfd_object)
794 && first->xvec != abfd->xvec)
796 bfd_set_error (bfd_error_wrong_object_format);
797 bfd_ardata (abfd) = tdata_hold;
800 /* And we ought to close `first' here too. */
807 /* Some constants for a 32 bit BSD archive structure. We do not
808 support 64 bit archives presently; so far as I know, none actually
809 exist. Supporting them would require changing these constants, and
810 changing some H_GET_32 to H_GET_64. */
812 /* The size of an external symdef structure. */
813 #define BSD_SYMDEF_SIZE 8
815 /* The offset from the start of a symdef structure to the file offset. */
816 #define BSD_SYMDEF_OFFSET_SIZE 4
818 /* The size of the symdef count. */
819 #define BSD_SYMDEF_COUNT_SIZE 4
821 /* The size of the string count. */
822 #define BSD_STRING_COUNT_SIZE 4
824 /* Read a BSD-style archive symbol table. Returns FALSE on error,
828 do_slurp_bsd_armap (bfd *abfd)
830 struct areltdata *mapdata;
831 unsigned int counter;
832 bfd_byte *raw_armap, *rbase;
833 struct artdata *ardata = bfd_ardata (abfd);
835 bfd_size_type parsed_size, amt;
838 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
841 parsed_size = mapdata->parsed_size;
842 bfd_release (abfd, mapdata); /* Don't need it any more. */
844 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
845 if (raw_armap == NULL)
848 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
850 if (bfd_get_error () != bfd_error_system_call)
851 bfd_set_error (bfd_error_malformed_archive);
853 bfd_release (abfd, raw_armap);
857 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
859 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
860 parsed_size - BSD_SYMDEF_COUNT_SIZE)
862 /* Probably we're using the wrong byte ordering. */
863 bfd_set_error (bfd_error_wrong_format);
868 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
869 stringbase = ((char *) rbase
870 + ardata->symdef_count * BSD_SYMDEF_SIZE
871 + BSD_STRING_COUNT_SIZE);
872 amt = ardata->symdef_count * sizeof (carsym);
873 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
874 if (!ardata->symdefs)
877 for (counter = 0, set = ardata->symdefs;
878 counter < ardata->symdef_count;
879 counter++, set++, rbase += BSD_SYMDEF_SIZE)
881 set->name = H_GET_32 (abfd, rbase) + stringbase;
882 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
885 ardata->first_file_filepos = bfd_tell (abfd);
886 /* Pad to an even boundary if you have to. */
887 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
888 /* FIXME, we should provide some way to free raw_ardata when
889 we are done using the strings from it. For now, it seems
890 to be allocated on an objalloc anyway... */
891 bfd_has_map (abfd) = TRUE;
895 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
899 do_slurp_coff_armap (bfd *abfd)
901 struct areltdata *mapdata;
902 int *raw_armap, *rawptr;
903 struct artdata *ardata = bfd_ardata (abfd);
905 bfd_size_type stringsize;
906 unsigned int parsed_size;
908 bfd_size_type nsymz; /* Number of symbols in armap. */
909 bfd_vma (*swap) (const void *);
910 char int_buf[sizeof (long)];
911 bfd_size_type carsym_size, ptrsize;
914 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
917 parsed_size = mapdata->parsed_size;
918 bfd_release (abfd, mapdata); /* Don't need it any more. */
920 if (bfd_bread (int_buf, 4, abfd) != 4)
922 if (bfd_get_error () != bfd_error_system_call)
923 bfd_set_error (bfd_error_malformed_archive);
926 /* It seems that all numeric information in a coff archive is always
927 in big endian format, nomatter the host or target. */
929 nsymz = bfd_getb32 (int_buf);
930 stringsize = parsed_size - (4 * nsymz) - 4;
932 /* ... except that some archive formats are broken, and it may be our
933 fault - the i960 little endian coff sometimes has big and sometimes
934 little, because our tools changed. Here's a horrible hack to clean
937 if (stringsize > 0xfffff
938 && bfd_get_arch (abfd) == bfd_arch_i960
939 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
941 /* This looks dangerous, let's do it the other way around. */
942 nsymz = bfd_getl32 (int_buf);
943 stringsize = parsed_size - (4 * nsymz) - 4;
947 /* The coff armap must be read sequentially. So we construct a
948 bsd-style one in core all at once, for simplicity. */
950 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
953 carsym_size = (nsymz * sizeof (carsym));
954 ptrsize = (4 * nsymz);
956 if (carsym_size + stringsize + 1 <= carsym_size)
959 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
960 carsym_size + stringsize + 1);
961 if (ardata->symdefs == NULL)
963 carsyms = ardata->symdefs;
964 stringbase = ((char *) ardata->symdefs) + carsym_size;
966 /* Allocate and read in the raw offsets. */
967 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
968 if (raw_armap == NULL)
969 goto release_symdefs;
970 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
971 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
973 if (bfd_get_error () != bfd_error_system_call)
974 bfd_set_error (bfd_error_malformed_archive);
975 goto release_raw_armap;
978 /* OK, build the carsyms. */
979 for (i = 0; i < nsymz; i++)
981 rawptr = raw_armap + i;
982 carsyms->file_offset = swap ((bfd_byte *) rawptr);
983 carsyms->name = stringbase;
984 stringbase += strlen (stringbase) + 1;
989 ardata->symdef_count = nsymz;
990 ardata->first_file_filepos = bfd_tell (abfd);
991 /* Pad to an even boundary if you have to. */
992 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
994 bfd_has_map (abfd) = TRUE;
995 bfd_release (abfd, raw_armap);
997 /* Check for a second archive header (as used by PE). */
999 struct areltdata *tmp;
1001 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1002 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1005 if (tmp->arch_header[0] == '/'
1006 && tmp->arch_header[1] == ' ')
1008 ardata->first_file_filepos +=
1009 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1011 bfd_release (abfd, tmp);
1018 bfd_release (abfd, raw_armap);
1020 bfd_release (abfd, (ardata)->symdefs);
1024 /* This routine can handle either coff-style or bsd-style armaps
1025 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1028 bfd_slurp_armap (bfd *abfd)
1031 int i = bfd_bread (nextname, 16, abfd);
1038 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1041 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1042 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1043 return do_slurp_bsd_armap (abfd);
1044 else if (CONST_STRNEQ (nextname, "/ "))
1045 return do_slurp_coff_armap (abfd);
1046 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1048 /* 64bit ELF (Irix 6) archive. */
1050 extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
1051 return bfd_elf64_archive_slurp_armap (abfd);
1053 bfd_set_error (bfd_error_wrong_format);
1058 bfd_has_map (abfd) = FALSE;
1062 /* Returns FALSE on error, TRUE otherwise. */
1063 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1064 header is in a slightly different order and the map name is '/'.
1065 This flavour is used by hp300hpux. */
1067 #define HPUX_SYMDEF_COUNT_SIZE 2
1070 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1072 struct areltdata *mapdata;
1074 unsigned int counter;
1075 bfd_byte *raw_armap, *rbase;
1076 struct artdata *ardata = bfd_ardata (abfd);
1078 unsigned int stringsize;
1081 int i = bfd_bread (nextname, 16, abfd);
1088 /* The archive has at least 16 bytes in it. */
1089 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1092 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1093 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1094 return do_slurp_bsd_armap (abfd);
1096 if (! CONST_STRNEQ (nextname, "/ "))
1098 bfd_has_map (abfd) = FALSE;
1102 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1103 if (mapdata == NULL)
1106 amt = mapdata->parsed_size;
1107 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1108 if (raw_armap == NULL)
1111 bfd_release (abfd, mapdata);
1115 if (bfd_bread (raw_armap, amt, abfd) != amt)
1117 if (bfd_get_error () != bfd_error_system_call)
1118 bfd_set_error (bfd_error_malformed_archive);
1120 bfd_release (abfd, raw_armap);
1124 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1126 if (ardata->symdef_count * BSD_SYMDEF_SIZE
1127 > mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE)
1129 /* Probably we're using the wrong byte ordering. */
1130 bfd_set_error (bfd_error_wrong_format);
1136 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1137 /* Skip sym count and string sz. */
1138 stringbase = ((char *) raw_armap
1139 + HPUX_SYMDEF_COUNT_SIZE
1140 + BSD_STRING_COUNT_SIZE);
1141 rbase = (bfd_byte *) stringbase + stringsize;
1142 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1143 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1144 if (!ardata->symdefs)
1147 for (counter = 0, set = ardata->symdefs;
1148 counter < ardata->symdef_count;
1149 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1151 set->name = H_GET_32 (abfd, rbase) + stringbase;
1152 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1155 ardata->first_file_filepos = bfd_tell (abfd);
1156 /* Pad to an even boundary if you have to. */
1157 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1158 /* FIXME, we should provide some way to free raw_ardata when
1159 we are done using the strings from it. For now, it seems
1160 to be allocated on an objalloc anyway... */
1161 bfd_has_map (abfd) = TRUE;
1165 /** Extended name table.
1167 Normally archives support only 14-character filenames.
1169 Intel has extended the format: longer names are stored in a special
1170 element (the first in the archive, or second if there is an armap);
1171 the name in the ar_hdr is replaced by <space><index into filename
1172 element>. Index is the P.R. of an int (decimal). Data General have
1173 extended the format by using the prefix // for the special element. */
1175 /* Returns FALSE on error, TRUE otherwise. */
1178 _bfd_slurp_extended_name_table (bfd *abfd)
1181 struct areltdata *namedata;
1184 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1185 we probably don't want to return TRUE. */
1186 bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET);
1187 if (bfd_bread (nextname, 16, abfd) == 16)
1189 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1192 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1193 && ! CONST_STRNEQ (nextname, "// "))
1195 bfd_ardata (abfd)->extended_names = NULL;
1196 bfd_ardata (abfd)->extended_names_size = 0;
1200 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1201 if (namedata == NULL)
1204 amt = namedata->parsed_size;
1208 bfd_ardata (abfd)->extended_names_size = amt;
1209 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1210 if (bfd_ardata (abfd)->extended_names == NULL)
1213 bfd_release (abfd, namedata);
1217 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1219 if (bfd_get_error () != bfd_error_system_call)
1220 bfd_set_error (bfd_error_malformed_archive);
1221 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1222 bfd_ardata (abfd)->extended_names = NULL;
1226 /* Since the archive is supposed to be printable if it contains
1227 text, the entries in the list are newline-padded, not null
1228 padded. In SVR4-style archives, the names also have a
1229 trailing '/'. DOS/NT created archive often have \ in them
1230 We'll fix all problems here.. */
1232 char *ext_names = bfd_ardata (abfd)->extended_names;
1233 char *temp = ext_names;
1234 char *limit = temp + namedata->parsed_size;
1235 for (; temp < limit; ++temp)
1237 if (*temp == ARFMAG[1])
1238 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1245 /* Pad to an even boundary if you have to. */
1246 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1247 bfd_ardata (abfd)->first_file_filepos +=
1248 (bfd_ardata (abfd)->first_file_filepos) % 2;
1250 /* FIXME, we can't release namedata here because it was allocated
1251 below extended_names on the objalloc... */
1258 /* Return a copy of the stuff in the filename between any :]> and a
1262 normalize (bfd *abfd, const char *file)
1268 first = file + strlen (file) - 1;
1271 while (first != file)
1275 if (*first == ':' || *first == ']' || *first == '>')
1283 copy = bfd_alloc (abfd, last - first + 1);
1287 memcpy (copy, first, last - first);
1288 copy[last - first] = 0;
1295 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1297 const char *filename = strrchr (file, '/');
1299 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1301 /* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
1302 char *bslash = strrchr (file, '\\');
1303 if (filename == NULL || (bslash != NULL && bslash > filename))
1305 if (filename == NULL && file[0] != '\0' && file[1] == ':')
1306 filename = file + 1;
1309 if (filename != NULL)
1317 /* Adjust a relative path name based on the reference path. */
1320 adjust_relative_path (const char * path, const char * ref_path)
1322 static char *pathbuf = NULL;
1323 static int pathbuf_len = 0;
1324 const char *pathp = path;
1325 const char *refp = ref_path;
1326 int element_count = 0;
1330 /* Remove common leading path elements. */
1333 const char *e1 = pathp;
1334 const char *e2 = refp;
1336 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1338 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1340 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1341 || strncmp (pathp, refp, e1 - pathp) != 0)
1347 /* For each leading path element in the reference path,
1348 insert "../" into the path. */
1349 for (; *refp; ++refp)
1350 if (IS_DIR_SEPARATOR (*refp))
1352 len = 3 * element_count + strlen (path) + 1;
1354 if (len > pathbuf_len)
1356 if (pathbuf != NULL)
1359 pathbuf = (char *) bfd_malloc (len);
1360 if (pathbuf == NULL)
1366 while (element_count-- > 0)
1368 /* FIXME: Support Windows style path separators as well. */
1369 strcpy (newp, "../");
1372 strcpy (newp, pathp);
1377 /* Build a BFD style extended name table. */
1380 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1382 bfd_size_type *tablen,
1385 *name = "ARFILENAMES/";
1386 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1389 /* Build an SVR4 style extended name table. */
1392 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1394 bfd_size_type *tablen,
1398 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1401 /* Follows archive_head and produces an extended name table if
1402 necessary. Returns (in tabloc) a pointer to an extended name
1403 table, and in tablen the length of the table. If it makes an entry
1404 it clobbers the filename so that the element may be written without
1405 further massage. Returns TRUE if it ran successfully, FALSE if
1406 something went wrong. A successful return may still involve a
1407 zero-length tablen! */
1410 _bfd_construct_extended_name_table (bfd *abfd,
1411 bfd_boolean trailing_slash,
1413 bfd_size_type *tablen)
1415 unsigned int maxname = abfd->xvec->ar_max_namelen;
1416 bfd_size_type total_namelen = 0;
1419 const char *last_filename;
1423 last_filename = NULL;
1425 /* Figure out how long the table should be. */
1426 for (current = abfd->archive_head;
1428 current = current->archive_next)
1431 unsigned int thislen;
1433 if (bfd_is_thin_archive (abfd))
1435 const char *filename = current->filename;
1437 /* If the element being added is a member of another archive
1438 (i.e., we are flattening), use the containing archive's name. */
1439 if (current->my_archive
1440 && ! bfd_is_thin_archive (current->my_archive))
1441 filename = current->my_archive->filename;
1443 /* If the path is the same as the previous path seen,
1444 reuse it. This can happen when flattening a thin
1445 archive that contains other archives. */
1446 if (last_filename && strcmp (last_filename, filename) == 0)
1449 last_filename = filename;
1451 /* If the path is relative, adjust it relative to
1452 the containing archive. */
1453 if (! IS_ABSOLUTE_PATH (filename)
1454 && ! IS_ABSOLUTE_PATH (abfd->filename))
1455 normal = adjust_relative_path (filename, abfd->filename);
1459 /* In a thin archive, always store the full pathname
1460 in the extended name table. */
1461 total_namelen += strlen (normal) + 1;
1463 /* Leave room for trailing slash. */
1469 normal = normalize (current, current->filename);
1473 thislen = strlen (normal);
1475 if (thislen > maxname
1476 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1479 if (thislen > maxname)
1481 /* Add one to leave room for \n. */
1482 total_namelen += thislen + 1;
1485 /* Leave room for trailing slash. */
1491 struct ar_hdr *hdr = arch_hdr (current);
1492 if (strncmp (normal, hdr->ar_name, thislen) != 0
1493 || (thislen < sizeof hdr->ar_name
1494 && hdr->ar_name[thislen] != ar_padchar (current)))
1496 /* Must have been using extended format even though it
1497 didn't need to. Fix it to use normal format. */
1498 memcpy (hdr->ar_name, normal, thislen);
1499 if (thislen < maxname
1500 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1501 hdr->ar_name[thislen] = ar_padchar (current);
1506 if (total_namelen == 0)
1509 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1510 if (*tabloc == NULL)
1513 *tablen = total_namelen;
1516 last_filename = NULL;
1519 for (current = abfd->archive_head;
1521 current = current->archive_next)
1524 unsigned int thislen;
1526 const char *filename = current->filename;
1528 if (bfd_is_thin_archive (abfd))
1530 /* If the element being added is a member of another archive
1531 (i.e., we are flattening), use the containing archive's name. */
1532 if (current->my_archive
1533 && ! bfd_is_thin_archive (current->my_archive))
1534 filename = current->my_archive->filename;
1535 /* If the path is the same as the previous path seen,
1536 reuse it. This can happen when flattening a thin
1537 archive that contains other archives.
1538 If the path is relative, adjust it relative to
1539 the containing archive. */
1540 if (last_filename && strcmp (last_filename, filename) == 0)
1541 normal = last_filename;
1542 else if (! IS_ABSOLUTE_PATH (filename)
1543 && ! IS_ABSOLUTE_PATH (abfd->filename))
1544 normal = adjust_relative_path (filename, abfd->filename);
1550 normal = normalize (current, filename);
1555 thislen = strlen (normal);
1556 if (thislen > maxname || bfd_is_thin_archive (abfd))
1558 /* Works for now; may need to be re-engineered if we
1559 encounter an oddball archive format and want to
1560 generalise this hack. */
1561 struct ar_hdr *hdr = arch_hdr (current);
1562 if (normal == last_filename)
1563 stroff = last_stroff;
1566 strcpy (strptr, normal);
1567 if (! trailing_slash)
1568 strptr[thislen] = ARFMAG[1];
1571 strptr[thislen] = '/';
1572 strptr[thislen + 1] = ARFMAG[1];
1574 stroff = strptr - *tabloc;
1575 last_stroff = stroff;
1577 hdr->ar_name[0] = ar_padchar (current);
1578 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1580 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1582 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1584 current->origin - sizeof (struct ar_hdr));
1587 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1588 if (normal != last_filename)
1590 strptr += thislen + 1;
1593 last_filename = filename;
1601 /* A couple of functions for creating ar_hdrs. */
1603 #ifdef HPUX_LARGE_AR_IDS
1604 /* Function to encode large UID/GID values according to HP. */
1607 hpux_uid_gid_encode (char str[6], long int id)
1611 str[5] = '@' + (id & 3);
1614 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1615 str[cnt] = ' ' + (id & 0x3f);
1617 #endif /* HPUX_LARGE_AR_IDS */
1627 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1628 make one. The filename must refer to a filename in the filesystem.
1629 The filename field of the ar_hdr will NOT be initialized. If member
1630 is set, and it's an in-memory bfd, we fake it. */
1632 static struct areltdata *
1633 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1636 struct areltdata *ared;
1640 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1642 /* Assume we just "made" the member, and fake it. */
1643 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1644 time (&status.st_mtime);
1645 status.st_uid = getuid ();
1646 status.st_gid = getgid ();
1647 status.st_mode = 0644;
1648 status.st_size = bim->size;
1650 else if (stat (filename, &status) != 0)
1652 bfd_set_error (bfd_error_system_call);
1656 /* If the caller requested that the BFD generate deterministic output,
1657 fake values for modification time, UID, GID, and file mode. */
1658 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1660 status.st_mtime = 0;
1663 status.st_mode = 0644;
1666 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1667 ared = (struct areltdata *) bfd_zalloc (abfd, amt);
1670 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1672 /* ar headers are space padded, not null padded! */
1673 memset (hdr, ' ', sizeof (struct ar_hdr));
1675 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1677 #ifdef HPUX_LARGE_AR_IDS
1678 /* HP has a very "special" way to handle UID/GID's with numeric values
1680 if (status.st_uid > 99999)
1681 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
1684 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
1686 #ifdef HPUX_LARGE_AR_IDS
1687 /* HP has a very "special" way to handle UID/GID's with numeric values
1689 if (status.st_gid > 99999)
1690 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
1693 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
1695 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
1697 _bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
1699 memcpy (hdr->ar_fmag, ARFMAG, 2);
1700 ared->parsed_size = status.st_size;
1701 ared->arch_header = (char *) hdr;
1706 /* This is magic required by the "ar" program. Since it's
1707 undocumented, it's undocumented. You may think that it would take
1708 a strong stomach to write this, and it does, but it takes even a
1709 stronger stomach to try to code around such a thing! */
1711 struct ar_hdr *bfd_special_undocumented_glue (bfd *, const char *);
1714 bfd_special_undocumented_glue (bfd *abfd, const char *filename)
1716 struct areltdata *ar_elt = bfd_ar_hdr_from_filesystem (abfd, filename, 0);
1719 return (struct ar_hdr *) ar_elt->arch_header;
1722 /* Analogous to stat call. */
1725 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1730 if (abfd->arelt_data == NULL)
1732 bfd_set_error (bfd_error_invalid_operation);
1736 hdr = arch_hdr (abfd);
1738 #define foo(arelt, stelt, size) \
1739 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1740 if (aloser == hdr->arelt) \
1743 /* Some platforms support special notations for large IDs. */
1744 #ifdef HPUX_LARGE_AR_IDS
1745 # define foo2(arelt, stelt, size) \
1746 if (hdr->arelt[5] == ' ') \
1748 foo (arelt, stelt, size); \
1753 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1755 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1758 buf->stelt += hdr->arelt[cnt] - ' '; \
1760 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1763 buf->stelt += hdr->arelt[5] - '@'; \
1766 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1769 foo (ar_date, st_mtime, 10);
1770 foo2 (ar_uid, st_uid, 10);
1771 foo2 (ar_gid, st_gid, 10);
1772 foo (ar_mode, st_mode, 8);
1774 buf->st_size = arch_eltdata (abfd)->parsed_size;
1780 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1782 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1783 Fortunately ic960 users will never use that option. Fixing this
1784 is very hard; fortunately I know how to do it and will do so once
1785 intel's release is out the door. */
1787 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1789 const char *filename;
1790 size_t maxlen = ar_maxnamelen (abfd);
1792 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1794 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
1798 filename = normalize (abfd, pathname);
1799 if (filename == NULL)
1805 length = strlen (filename);
1807 if (length <= maxlen)
1808 memcpy (hdr->ar_name, filename, length);
1810 /* Add the padding character if there is room for it. */
1812 || (length == maxlen && length < sizeof hdr->ar_name))
1813 (hdr->ar_name)[length] = ar_padchar (abfd);
1817 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1819 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1821 const char *filename = strrchr (pathname, '/');
1822 size_t maxlen = ar_maxnamelen (abfd);
1824 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1826 /* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
1827 char *bslash = strrchr (pathname, '\\');
1828 if (filename == NULL || (bslash != NULL && bslash > filename))
1830 if (filename == NULL && pathname[0] != '\0' && pathname[1] == ':')
1831 filename = pathname + 1;
1835 if (filename == NULL)
1836 filename = pathname;
1840 length = strlen (filename);
1842 if (length <= maxlen)
1843 memcpy (hdr->ar_name, filename, length);
1846 /* pathname: meet procrustes */
1847 memcpy (hdr->ar_name, filename, maxlen);
1851 if (length < maxlen)
1852 (hdr->ar_name)[length] = ar_padchar (abfd);
1855 /* Store name into ar header. Truncates the name to fit.
1856 1> strip pathname to be just the basename.
1857 2> if it's short enuf to fit, stuff it in.
1858 3> If it doesn't end with .o, truncate it to fit
1859 4> truncate it before the .o, append .o, stuff THAT in. */
1861 /* This is what gnu ar does. It's better but incompatible with the
1865 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
1867 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1869 const char *filename = strrchr (pathname, '/');
1870 size_t maxlen = ar_maxnamelen (abfd);
1872 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
1874 /* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
1875 char *bslash = strrchr (pathname, '\\');
1877 if (filename == NULL || (bslash != NULL && bslash > filename))
1879 if (filename == NULL && pathname[0] != '\0' && pathname[1] == ':')
1880 filename = pathname + 1;
1884 if (filename == NULL)
1885 filename = pathname;
1889 length = strlen (filename);
1891 if (length <= maxlen)
1892 memcpy (hdr->ar_name, filename, length);
1895 /* pathname: meet procrustes. */
1896 memcpy (hdr->ar_name, filename, maxlen);
1897 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
1899 hdr->ar_name[maxlen - 2] = '.';
1900 hdr->ar_name[maxlen - 1] = 'o';
1906 (hdr->ar_name)[length] = ar_padchar (abfd);
1909 /* The BFD is open for write and has its format set to bfd_archive. */
1912 _bfd_write_archive_contents (bfd *arch)
1915 char *etable = NULL;
1916 bfd_size_type elength = 0;
1917 const char *ename = NULL;
1918 bfd_boolean makemap = bfd_has_map (arch);
1919 /* If no .o's, don't bother to make a map. */
1920 bfd_boolean hasobjects = FALSE;
1921 bfd_size_type wrote;
1925 /* Verify the viability of all entries; if any of them live in the
1926 filesystem (as opposed to living in an archive open for input)
1927 then construct a fresh ar_hdr for them. */
1928 for (current = arch->archive_head;
1930 current = current->archive_next)
1932 /* This check is checking the bfds for the objects we're reading
1933 from (which are usually either an object file or archive on
1934 disk), not the archive entries we're writing to. We don't
1935 actually create bfds for the archive members, we just copy
1936 them byte-wise when we write out the archive. */
1937 if (bfd_write_p (current))
1939 bfd_set_error (bfd_error_invalid_operation);
1942 if (!current->arelt_data)
1944 current->arelt_data =
1945 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
1946 if (!current->arelt_data)
1949 /* Put in the file name. */
1950 BFD_SEND (arch, _bfd_truncate_arname,
1951 (arch, current->filename, (char *) arch_hdr (current)));
1954 if (makemap && ! hasobjects)
1955 { /* Don't bother if we won't make a map! */
1956 if ((bfd_check_format (current, bfd_object)))
1961 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
1962 (arch, &etable, &elength, &ename)))
1965 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
1968 if (bfd_is_thin_archive (arch))
1970 wrote = bfd_bwrite (armag, SARMAG, arch);
1971 if (wrote != SARMAG)
1974 if (makemap && hasobjects)
1976 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
1984 memset (&hdr, ' ', sizeof (struct ar_hdr));
1985 memcpy (hdr.ar_name, ename, strlen (ename));
1986 /* Round size up to even number in archive header. */
1987 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
1988 (elength + 1) & ~(bfd_size_type) 1);
1989 memcpy (hdr.ar_fmag, ARFMAG, 2);
1990 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
1991 != sizeof (struct ar_hdr))
1992 || bfd_bwrite (etable, elength, arch) != elength)
1994 if ((elength % 2) == 1)
1996 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2001 for (current = arch->archive_head;
2003 current = current->archive_next)
2005 char buffer[DEFAULT_BUFFERSIZE];
2006 unsigned int remaining = arelt_size (current);
2007 struct ar_hdr *hdr = arch_hdr (current);
2009 /* Write ar header. */
2010 if (bfd_bwrite (hdr, sizeof (*hdr), arch)
2013 if (bfd_is_thin_archive (arch))
2015 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2020 unsigned int amt = DEFAULT_BUFFERSIZE;
2022 if (amt > remaining)
2025 if (bfd_bread (buffer, amt, current) != amt)
2027 if (bfd_get_error () != bfd_error_system_call)
2028 bfd_set_error (bfd_error_file_truncated);
2031 if (bfd_bwrite (buffer, amt, arch) != amt)
2036 if ((arelt_size (current) % 2) == 1)
2038 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2043 if (makemap && hasobjects)
2045 /* Verify the timestamp in the archive file. If it would not be
2046 accepted by the linker, rewrite it until it would be. If
2047 anything odd happens, break out and just return. (The
2048 Berkeley linker checks the timestamp and refuses to read the
2049 table-of-contents if it is >60 seconds less than the file's
2050 modified-time. That painful hack requires this painful hack. */
2054 if (bfd_update_armap_timestamp (arch))
2056 (*_bfd_error_handler)
2057 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2059 while (++tries < 6);
2065 bfd_set_error (bfd_error_on_input, current, bfd_get_error ());
2069 /* Note that the namidx for the first symbol is 0. */
2072 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2074 char *first_name = NULL;
2076 file_ptr elt_no = 0;
2077 struct orl *map = NULL;
2078 unsigned int orl_max = 1024; /* Fine initial default. */
2079 unsigned int orl_count = 0;
2081 asymbol **syms = NULL;
2086 /* Dunno if this is the best place for this info... */
2088 elength += sizeof (struct ar_hdr);
2089 elength += elength % 2;
2091 amt = orl_max * sizeof (struct orl);
2092 map = (struct orl *) bfd_malloc (amt);
2096 /* We put the symbol names on the arch objalloc, and then discard
2098 first_name = (char *) bfd_alloc (arch, 1);
2099 if (first_name == NULL)
2102 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2103 while (arch->archive_head
2104 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2105 arch->archive_head = arch->archive_head->archive_next;
2107 /* Map over each element. */
2108 for (current = arch->archive_head;
2110 current = current->archive_next, elt_no++)
2112 if (bfd_check_format (current, bfd_object)
2113 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2119 storage = bfd_get_symtab_upper_bound (current);
2125 if (storage > syms_max)
2130 syms = (asymbol **) bfd_malloc (syms_max);
2134 symcount = bfd_canonicalize_symtab (current, syms);
2138 /* Now map over all the symbols, picking out the ones we
2140 for (src_count = 0; src_count < symcount; src_count++)
2142 flagword flags = (syms[src_count])->flags;
2143 asection *sec = syms[src_count]->section;
2145 if ((flags & BSF_GLOBAL
2147 || flags & BSF_INDIRECT
2148 || bfd_is_com_section (sec))
2149 && ! bfd_is_und_section (sec))
2151 bfd_size_type namelen;
2152 struct orl *new_map;
2154 /* This symbol will go into the archive header. */
2155 if (orl_count == orl_max)
2158 amt = orl_max * sizeof (struct orl);
2159 new_map = (struct orl *) bfd_realloc (map, amt);
2160 if (new_map == NULL)
2166 namelen = strlen (syms[src_count]->name);
2167 amt = sizeof (char *);
2168 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2169 if (map[orl_count].name == NULL)
2171 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2173 if (*(map[orl_count].name) == NULL)
2175 strcpy (*(map[orl_count].name), syms[src_count]->name);
2176 map[orl_count].u.abfd = current;
2177 map[orl_count].namidx = stridx;
2179 stridx += namelen + 1;
2185 /* Now ask the BFD to free up any cached information, so we
2186 don't fill all of memory with symbol tables. */
2187 if (! bfd_free_cached_info (current))
2192 /* OK, now we have collected all the data, let's write them out. */
2193 ret = BFD_SEND (arch, write_armap,
2194 (arch, elength, map, orl_count, stridx));
2200 if (first_name != NULL)
2201 bfd_release (arch, first_name);
2210 if (first_name != NULL)
2211 bfd_release (arch, first_name);
2217 bsd_write_armap (bfd *arch,
2218 unsigned int elength,
2220 unsigned int orl_count,
2223 int padit = stridx & 1;
2224 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2225 unsigned int stringsize = stridx + padit;
2226 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2227 unsigned int mapsize = ranlibsize + stringsize + 8;
2229 bfd *current = arch->archive_head;
2230 bfd *last_elt = current; /* Last element arch seen. */
2234 struct stat statbuf;
2237 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2239 stat (arch->filename, &statbuf);
2240 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2242 /* Remember the timestamp, to keep it holy. But fudge it a little. */
2243 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2244 + ARMAP_TIME_OFFSET);
2250 /* If deterministic, we use 0 as the timestamp in the map.
2251 Some linkers may require that the archive filesystem modification
2252 time is less than (or near to) the archive map timestamp. Those
2253 linkers should not be used with deterministic mode. (GNU ld and
2254 Gold do not have this restriction.) */
2255 bfd_ardata (arch)->armap_timestamp = 0;
2260 memset (&hdr, ' ', sizeof (struct ar_hdr));
2261 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2262 bfd_ardata (arch)->armap_datepos = (SARMAG
2263 + offsetof (struct ar_hdr, ar_date[0]));
2264 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2265 bfd_ardata (arch)->armap_timestamp);
2266 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2267 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2268 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld", mapsize);
2269 memcpy (hdr.ar_fmag, ARFMAG, 2);
2270 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2271 != sizeof (struct ar_hdr))
2273 H_PUT_32 (arch, ranlibsize, temp);
2274 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2277 for (count = 0; count < orl_count; count++)
2279 bfd_byte buf[BSD_SYMDEF_SIZE];
2281 if (map[count].u.abfd != last_elt)
2285 firstreal += arelt_size (current) + sizeof (struct ar_hdr);
2286 firstreal += firstreal % 2;
2287 current = current->archive_next;
2289 while (current != map[count].u.abfd);
2293 H_PUT_32 (arch, map[count].namidx, buf);
2294 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2295 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2300 /* Now write the strings themselves. */
2301 H_PUT_32 (arch, stringsize, temp);
2302 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2304 for (count = 0; count < orl_count; count++)
2306 size_t len = strlen (*map[count].name) + 1;
2308 if (bfd_bwrite (*map[count].name, len, arch) != len)
2312 /* The spec sez this should be a newline. But in order to be
2313 bug-compatible for sun's ar we use a null. */
2316 if (bfd_bwrite ("", 1, arch) != 1)
2323 /* At the end of archive file handling, update the timestamp in the
2324 file, so the linker will accept it.
2326 Return TRUE if the timestamp was OK, or an unusual problem happened.
2327 Return FALSE if we updated the timestamp. */
2330 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2332 struct stat archstat;
2335 /* If creating deterministic archives, just leave the timestamp as-is. */
2336 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2339 /* Flush writes, get last-write timestamp from file, and compare it
2340 to the timestamp IN the file. */
2342 if (bfd_stat (arch, &archstat) == -1)
2344 bfd_perror (_("Reading archive file mod timestamp"));
2346 /* Can't read mod time for some reason. */
2349 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2350 /* OK by the linker's rules. */
2353 /* Update the timestamp. */
2354 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2356 /* Prepare an ASCII version suitable for writing. */
2357 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2358 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2359 bfd_ardata (arch)->armap_timestamp);
2361 /* Write it into the file. */
2362 bfd_ardata (arch)->armap_datepos = (SARMAG
2363 + offsetof (struct ar_hdr, ar_date[0]));
2364 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2365 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2366 != sizeof (hdr.ar_date)))
2368 bfd_perror (_("Writing updated armap timestamp"));
2370 /* Some error while writing. */
2374 /* We updated the timestamp successfully. */
2378 /* A coff armap looks like :
2380 struct ar_hdr with name = '/'
2382 offset of file for symbol 0
2383 offset of file for symbol 1
2385 offset of file for symbol n-1
2392 coff_write_armap (bfd *arch,
2393 unsigned int elength,
2395 unsigned int symbol_count,
2398 /* The size of the ranlib is the number of exported symbols in the
2399 archive * the number of bytes in an int, + an int for the count. */
2400 unsigned int ranlibsize = (symbol_count * 4) + 4;
2401 unsigned int stringsize = stridx;
2402 unsigned int mapsize = stringsize + ranlibsize;
2403 unsigned int archive_member_file_ptr;
2404 bfd *current = arch->archive_head;
2407 int padit = mapsize & 1;
2412 /* Work out where the first object file will go in the archive. */
2413 archive_member_file_ptr = (mapsize
2415 + sizeof (struct ar_hdr)
2418 memset (&hdr, ' ', sizeof (struct ar_hdr));
2419 hdr.ar_name[0] = '/';
2420 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
2422 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2423 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2424 ? time (NULL) : 0));
2425 /* This, at least, is what Intel coff sets the values to. */
2426 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2427 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2428 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2429 memcpy (hdr.ar_fmag, ARFMAG, 2);
2431 /* Write the ar header for this item and the number of symbols. */
2432 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2433 != sizeof (struct ar_hdr))
2436 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2439 /* Two passes, first write the file offsets for each symbol -
2440 remembering that each offset is on a two byte boundary. */
2442 /* Write out the file offset for the file associated with each
2443 symbol, and remember to keep the offsets padded out. */
2445 current = arch->archive_head;
2447 while (current != NULL && count < symbol_count)
2449 /* For each symbol which is used defined in this object, write
2450 out the object file's address in the archive. */
2452 while (count < symbol_count && map[count].u.abfd == current)
2454 if (!bfd_write_bigendian_4byte_int (arch, archive_member_file_ptr))
2458 archive_member_file_ptr += sizeof (struct ar_hdr);
2459 if (! bfd_is_thin_archive (arch))
2461 /* Add size of this archive entry. */
2462 archive_member_file_ptr += arelt_size (current);
2463 /* Remember about the even alignment. */
2464 archive_member_file_ptr += archive_member_file_ptr % 2;
2466 current = current->archive_next;
2469 /* Now write the strings themselves. */
2470 for (count = 0; count < symbol_count; count++)
2472 size_t len = strlen (*map[count].name) + 1;
2474 if (bfd_bwrite (*map[count].name, len, arch) != len)
2478 /* The spec sez this should be a newline. But in order to be
2479 bug-compatible for arc960 we use a null. */
2482 if (bfd_bwrite ("", 1, arch) != 1)