1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2018 Free Software Foundation, Inc.
3 Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 @setfilename archive-info
27 An archive (or library) is just another BFD. It has a symbol
28 table, although there's not much a user program will do with it.
30 The big difference between an archive BFD and an ordinary BFD
31 is that the archive doesn't have sections. Instead it has a
32 chain of BFDs that are considered its contents. These BFDs can
33 be manipulated like any other. The BFDs contained in an
34 archive opened for reading will all be opened for reading. You
35 may put either input or output BFDs into an archive opened for
36 output; they will be handled correctly when the archive is closed.
38 Use <<bfd_openr_next_archived_file>> to step through
39 the contents of an archive opened for input. You don't
40 have to read the entire archive if you don't want
41 to! Read it until you find what you want.
43 A BFD returned by <<bfd_openr_next_archived_file>> can be
44 closed manually with <<bfd_close>>. If you do not close it,
45 then a second iteration through the members of an archive may
46 return the same BFD. If you close the archive BFD, then all
47 the member BFDs will automatically be closed as well.
49 Archive contents of output BFDs are chained through the
50 <<archive_next>> pointer in a BFD. The first one is findable
51 through the <<archive_head>> slot of the archive. Set it with
52 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only
53 one open output archive at a time.
55 As expected, the BFD archive code is more general than the
56 archive code of any given environment. BFD archives may
57 contain files of different formats (e.g., a.out and coff) and
58 even different architectures. You may even place archives
59 recursively into archives!
61 This can cause unexpected confusion, since some archive
62 formats are more expressive than others. For instance, Intel
63 COFF archives can preserve long filenames; SunOS a.out archives
64 cannot. If you move a file from the first to the second
65 format and back again, the filename may be truncated.
66 Likewise, different a.out environments have different
67 conventions as to how they truncate filenames, whether they
68 preserve directory names in filenames, etc. When
69 interoperating with native tools, be sure your files are
72 Beware: most of these formats do not react well to the
73 presence of spaces in filenames. We do the best we can, but
74 can't always handle this case due to restrictions in the format of
75 archives. Many Unix utilities are braindead in regards to
76 spaces and such in filenames anyway, so this shouldn't be much
79 Archives are supported in BFD in <<archive.c>>.
86 o - all archive elements start on an even boundary, newline padded;
87 o - all arch headers are char *;
88 o - all arch headers are the same size (across architectures).
91 /* Some formats provide a way to cram a long filename into the short
92 (16 chars) space provided by a BSD archive. The trick is: make a
93 special "file" in the front of the archive, sort of like the SYMDEF
94 entry. If the filename is too long to fit, put it in the extended
95 name table, and use its index as the filename. To prevent
96 confusion prepend the index with a space. This means you can't
97 have filenames that start with a space, but then again, many Unix
98 utilities can't handle that anyway.
100 This scheme unfortunately requires that you stand on your head in
101 order to write an archive since you need to put a magic file at the
102 front, and need to touch every entry to do so. C'est la vie.
104 We support two variants of this idea:
105 The SVR4 format (extended name table is named "//"),
106 and an extended pseudo-BSD variant (extended name table is named
107 "ARFILENAMES/"). The origin of the latter format is uncertain.
109 BSD 4.4 uses a third scheme: It writes a long filename
110 directly after the header. This allows 'ar q' to work.
113 /* Summary of archive member names:
115 Symbol table (must be first):
116 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
117 "/ " - Symbol table, system 5 style.
119 Long name table (must be before regular file members):
120 "// " - Long name table, System 5 R4 style.
121 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
123 Regular file members with short names:
124 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
125 "filename.o " - Regular file, Berkeley style (no embedded spaces).
127 Regular files with long names (or embedded spaces, for BSD variants):
128 "/18 " - SVR4 style, name at offset 18 in name table.
129 "#1/23 " - Long name (or embedded spaces) 23 characters long,
130 BSD 4.4 style, full name follows header.
131 " 18 " - Long name 18 characters long, extended pseudo-BSD.
136 #include "libiberty.h"
139 #include "aout/ranlib.h"
140 #include "safe-ctype.h"
142 #include "filenames.h"
149 /* We keep a cache of archive filepointers to archive elements to
150 speed up searching the archive by filepos. We only add an entry to
151 the cache when we actually read one. We also don't sort the cache;
152 it's generally short enough to search linearly.
153 Note that the pointers here point to the front of the ar_hdr, not
154 to the front of the contents! */
161 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
162 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
164 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
165 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
167 /* True iff NAME designated a BSD 4.4 extended name. */
169 #define is_bsd44_extended_name(NAME) \
170 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
173 _bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
178 snprintf (buf, sizeof (buf), fmt, val);
182 memcpy (p, buf, len);
183 memset (p + len, ' ', n - len);
190 _bfd_ar_sizepad (char *p, size_t n, bfd_size_type size)
195 snprintf (buf, sizeof (buf), "%-10" BFD_VMA_FMT "u", size);
199 bfd_set_error (bfd_error_file_too_big);
204 memcpy (p, buf, len);
205 memset (p + len, ' ', n - len);
213 _bfd_generic_mkarchive (bfd *abfd)
215 bfd_size_type amt = sizeof (struct artdata);
217 abfd->tdata.aout_ar_data = (struct artdata *) bfd_zalloc (abfd, amt);
218 if (bfd_ardata (abfd) == NULL)
221 /* Already cleared by bfd_zalloc above.
222 bfd_ardata (abfd)->cache = NULL;
223 bfd_ardata (abfd)->archive_head = NULL;
224 bfd_ardata (abfd)->symdefs = NULL;
225 bfd_ardata (abfd)->extended_names = NULL;
226 bfd_ardata (abfd)->extended_names_size = 0;
227 bfd_ardata (abfd)->tdata = NULL; */
237 symindex bfd_get_next_mapent
238 (bfd *abfd, symindex previous, carsym **sym);
241 Step through archive @var{abfd}'s symbol table (if it
242 has one). Successively update @var{sym} with the next symbol's
243 information, returning that symbol's (internal) index into the
246 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
247 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
250 A <<carsym>> is a canonical archive symbol. The only
251 user-visible element is its name, a null-terminated string.
255 bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
257 if (!bfd_has_map (abfd))
259 bfd_set_error (bfd_error_invalid_operation);
260 return BFD_NO_MORE_SYMBOLS;
263 if (prev == BFD_NO_MORE_SYMBOLS)
267 if (prev >= bfd_ardata (abfd)->symdef_count)
268 return BFD_NO_MORE_SYMBOLS;
270 *entry = (bfd_ardata (abfd)->symdefs + prev);
274 /* To be called by backends only. */
277 _bfd_create_empty_archive_element_shell (bfd *obfd)
279 return _bfd_new_bfd_contained_in (obfd);
287 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
290 Set the head of the chain of
291 BFDs contained in the archive @var{output} to @var{new_head}.
295 bfd_set_archive_head (bfd *output_archive, bfd *new_head)
297 output_archive->archive_head = new_head;
302 _bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
304 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
311 struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
315 /* Unfortunately this flag is set after checking that we have
316 an archive, and checking for an archive means one element has
317 sneaked into the cache. */
318 entry->arbfd->no_export = arch_bfd->no_export;
326 hash_file_ptr (const void * p)
328 return (hashval_t) (((struct ar_cache *) p)->ptr);
331 /* Returns non-zero if P1 and P2 are equal. */
334 eq_file_ptr (const void * p1, const void * p2)
336 struct ar_cache *arc1 = (struct ar_cache *) p1;
337 struct ar_cache *arc2 = (struct ar_cache *) p2;
338 return arc1->ptr == arc2->ptr;
341 /* The calloc function doesn't always take size_t (e.g. on VMS)
342 so wrap it to avoid a compile time warning. */
345 _bfd_calloc_wrapper (size_t a, size_t b)
347 return calloc (a, b);
350 /* Kind of stupid to call cons for each one, but we don't do too many. */
353 _bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
355 struct ar_cache *cache;
356 htab_t hash_table = bfd_ardata (arch_bfd)->cache;
358 /* If the hash table hasn't been created, create it. */
359 if (hash_table == NULL)
361 hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
362 NULL, _bfd_calloc_wrapper, free);
363 if (hash_table == NULL)
365 bfd_ardata (arch_bfd)->cache = hash_table;
368 /* Insert new_elt into the hash table by filepos. */
369 cache = (struct ar_cache *) bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
370 cache->ptr = filepos;
371 cache->arbfd = new_elt;
372 *htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
374 /* Provide a means of accessing this from child. */
375 arch_eltdata (new_elt)->parent_cache = hash_table;
376 arch_eltdata (new_elt)->key = filepos;
382 open_nested_file (const char *filename, bfd *archive)
388 if (!archive->target_defaulted)
389 target = archive->xvec->name;
390 n_bfd = bfd_openr (filename, target);
393 n_bfd->lto_output = archive->lto_output;
394 n_bfd->no_export = archive->no_export;
395 n_bfd->my_archive = archive;
401 find_nested_archive (const char *filename, bfd *arch_bfd)
405 /* PR 15140: Don't allow a nested archive pointing to itself. */
406 if (filename_cmp (filename, arch_bfd->filename) == 0)
408 bfd_set_error (bfd_error_malformed_archive);
412 for (abfd = arch_bfd->nested_archives;
414 abfd = abfd->archive_next)
416 if (filename_cmp (filename, abfd->filename) == 0)
419 abfd = open_nested_file (filename, arch_bfd);
422 abfd->archive_next = arch_bfd->nested_archives;
423 arch_bfd->nested_archives = abfd;
428 /* The name begins with space. Hence the rest of the name is an index into
432 get_extended_arelt_filename (bfd *arch, const char *name, file_ptr *originp)
434 unsigned long table_index = 0;
437 /* Should extract string so that I can guarantee not to overflow into
438 the next region, but I'm too lazy. */
440 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
441 table_index = strtol (name + 1, (char **) &endp, 10);
442 if (errno != 0 || table_index >= bfd_ardata (arch)->extended_names_size)
444 bfd_set_error (bfd_error_malformed_archive);
447 /* In a thin archive, a member of an archive-within-an-archive
448 will have the offset in the inner archive encoded here. */
449 if (bfd_is_thin_archive (arch) && endp != NULL && *endp == ':')
451 file_ptr origin = strtol (endp + 1, NULL, 10);
455 bfd_set_error (bfd_error_malformed_archive);
463 return bfd_ardata (arch)->extended_names + table_index;
466 /* This functions reads an arch header and returns an areltdata pointer, or
469 Presumes the file pointer is already in the right place (ie pointing
470 to the ar_hdr in the file). Moves the file pointer; on success it
471 should be pointing to the front of the file contents; on failure it
472 could have been moved arbitrarily. */
475 _bfd_generic_read_ar_hdr (bfd *abfd)
477 return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
480 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
481 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
484 _bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
487 char *hdrp = (char *) &hdr;
488 bfd_size_type parsed_size;
489 struct areltdata *ared;
490 char *filename = NULL;
491 bfd_size_type namelen = 0;
492 bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
495 unsigned int extra_size = 0;
499 if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
501 if (bfd_get_error () != bfd_error_system_call)
502 bfd_set_error (bfd_error_no_more_archived_files);
505 if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
507 || strncmp (hdr.ar_fmag, mag, 2) != 0))
509 bfd_set_error (bfd_error_malformed_archive);
514 fmag_save = hdr.ar_fmag[0];
516 scan = sscanf (hdr.ar_size, "%" BFD_VMA_FMT "u", &parsed_size);
517 hdr.ar_fmag[0] = fmag_save;
520 bfd_set_error (bfd_error_malformed_archive);
524 /* Extract the filename from the archive - there are two ways to
525 specify an extended name table, either the first char of the
526 name is a space, or it's a slash. */
527 if ((hdr.ar_name[0] == '/'
528 || (hdr.ar_name[0] == ' '
529 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
530 && bfd_ardata (abfd)->extended_names != NULL)
532 filename = get_extended_arelt_filename (abfd, hdr.ar_name, &origin);
533 if (filename == NULL)
536 /* BSD4.4-style long filename. */
537 else if (is_bsd44_extended_name (hdr.ar_name))
539 /* BSD-4.4 extended name */
540 namelen = atoi (&hdr.ar_name[3]);
541 allocsize += namelen + 1;
542 parsed_size -= namelen;
543 extra_size = namelen;
545 allocptr = (char *) bfd_zmalloc (allocsize);
546 if (allocptr == NULL)
549 + sizeof (struct areltdata)
550 + sizeof (struct ar_hdr));
551 if (bfd_bread (filename, namelen, abfd) != namelen)
554 if (bfd_get_error () != bfd_error_system_call)
555 bfd_set_error (bfd_error_no_more_archived_files);
558 filename[namelen] = '\0';
562 /* We judge the end of the name by looking for '/' or ' '.
563 Note: The SYSV format (terminated by '/') allows embedded
564 spaces, so only look for ' ' if we don't find '/'. */
567 e = (char *) memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
570 e = (char *) memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
572 e = (char *) memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
576 namelen = e - hdr.ar_name;
579 /* If we didn't find a termination character, then the name
580 must be the entire field. */
581 namelen = ar_maxnamelen (abfd);
584 allocsize += namelen + 1;
589 allocptr = (char *) bfd_zmalloc (allocsize);
590 if (allocptr == NULL)
594 ared = (struct areltdata *) allocptr;
596 ared->arch_header = allocptr + sizeof (struct areltdata);
597 memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
598 ared->parsed_size = parsed_size;
599 ared->extra_size = extra_size;
600 ared->origin = origin;
602 if (filename != NULL)
603 ared->filename = filename;
606 ared->filename = allocptr + (sizeof (struct areltdata) +
607 sizeof (struct ar_hdr));
609 memcpy (ared->filename, hdr.ar_name, namelen);
610 ared->filename[namelen] = '\0';
616 /* Append the relative pathname for a member of the thin archive
617 to the pathname of the directory containing the archive. */
620 _bfd_append_relative_path (bfd *arch, char *elt_name)
622 const char *arch_name = arch->filename;
623 const char *base_name = lbasename (arch_name);
627 if (base_name == arch_name)
630 prefix_len = base_name - arch_name;
631 filename = (char *) bfd_alloc (arch, prefix_len + strlen (elt_name) + 1);
632 if (filename == NULL)
635 strncpy (filename, arch_name, prefix_len);
636 strcpy (filename + prefix_len, elt_name);
640 /* This is an internal function; it's mainly used when indexing
641 through the archive symbol table, but also used to get the next
642 element, since it handles the bookkeeping so nicely for us. */
645 _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
647 struct areltdata *new_areldata;
651 n_bfd = _bfd_look_for_bfd_in_cache (archive, filepos);
655 if (0 > bfd_seek (archive, filepos, SEEK_SET))
658 if ((new_areldata = (struct areltdata *) _bfd_read_ar_hdr (archive)) == NULL)
661 filename = new_areldata->filename;
663 if (bfd_is_thin_archive (archive))
665 /* This is a proxy entry for an external file. */
666 if (! IS_ABSOLUTE_PATH (filename))
668 filename = _bfd_append_relative_path (archive, filename);
669 if (filename == NULL)
676 if (new_areldata->origin > 0)
678 /* This proxy entry refers to an element of a nested archive.
679 Locate the member of that archive and return a bfd for it. */
680 bfd *ext_arch = find_nested_archive (filename, archive);
683 || ! bfd_check_format (ext_arch, bfd_archive))
688 n_bfd = _bfd_get_elt_at_filepos (ext_arch, new_areldata->origin);
694 n_bfd->proxy_origin = bfd_tell (archive);
698 /* It's not an element of a nested archive;
699 open the external file as a bfd. */
700 n_bfd = open_nested_file (filename, archive);
702 bfd_set_error (bfd_error_malformed_archive);
706 n_bfd = _bfd_create_empty_archive_element_shell (archive);
715 n_bfd->proxy_origin = bfd_tell (archive);
717 if (bfd_is_thin_archive (archive))
723 n_bfd->origin = n_bfd->proxy_origin;
724 n_bfd->filename = xstrdup (filename);
727 n_bfd->arelt_data = new_areldata;
729 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
730 n_bfd->flags |= archive->flags & (BFD_COMPRESS
732 | BFD_COMPRESS_GABI);
734 /* Copy is_linker_input. */
735 n_bfd->is_linker_input = archive->is_linker_input;
737 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_bfd))
741 n_bfd->arelt_data = NULL;
745 /* Return the BFD which is referenced by the symbol in ABFD indexed by
746 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
749 _bfd_generic_get_elt_at_index (bfd *abfd, symindex sym_index)
753 entry = bfd_ardata (abfd)->symdefs + sym_index;
754 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
758 _bfd_noarchive_get_elt_at_index (bfd *abfd,
759 symindex sym_index ATTRIBUTE_UNUSED)
761 return (bfd *) _bfd_ptr_bfd_null_error (abfd);
766 bfd_openr_next_archived_file
769 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
772 Provided a BFD, @var{archive}, containing an archive and NULL, open
773 an input BFD on the first contained element and returns that.
774 Subsequent calls should pass the archive and the previous return
775 value to return a created BFD to the next contained element. NULL
776 is returned when there are no more.
777 Note - if you want to process the bfd returned by this call be
778 sure to call bfd_check_format() on it first.
782 bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
784 if ((bfd_get_format (archive) != bfd_archive)
785 || (archive->direction == write_direction))
787 bfd_set_error (bfd_error_invalid_operation);
791 return BFD_SEND (archive,
792 openr_next_archived_file, (archive, last_file));
796 bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
801 filestart = bfd_ardata (archive)->first_file_filepos;
804 filestart = last_file->proxy_origin;
805 if (! bfd_is_thin_archive (archive))
807 bfd_size_type size = arelt_size (last_file);
810 /* Pad to an even boundary...
811 Note that last_file->origin can be odd in the case of
812 BSD-4.4-style element with a long odd size. */
813 filestart += filestart % 2;
814 if (filestart < last_file->proxy_origin)
816 /* Prevent looping. See PR19256. */
817 bfd_set_error (bfd_error_malformed_archive);
823 return _bfd_get_elt_at_filepos (archive, filestart);
827 _bfd_noarchive_openr_next_archived_file (bfd *archive,
828 bfd *last_file ATTRIBUTE_UNUSED)
830 return (bfd *) _bfd_ptr_bfd_null_error (archive);
834 bfd_generic_archive_p (bfd *abfd)
836 struct artdata *tdata_hold;
837 char armag[SARMAG + 1];
840 if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
842 if (bfd_get_error () != bfd_error_system_call)
843 bfd_set_error (bfd_error_wrong_format);
847 bfd_is_thin_archive (abfd) = (strncmp (armag, ARMAGT, SARMAG) == 0);
849 if (strncmp (armag, ARMAG, SARMAG) != 0
850 && strncmp (armag, ARMAGB, SARMAG) != 0
851 && ! bfd_is_thin_archive (abfd))
853 bfd_set_error (bfd_error_wrong_format);
854 if (abfd->format == bfd_archive)
855 abfd->format = bfd_unknown;
859 tdata_hold = bfd_ardata (abfd);
861 amt = sizeof (struct artdata);
862 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
863 if (bfd_ardata (abfd) == NULL)
865 bfd_ardata (abfd) = tdata_hold;
869 bfd_ardata (abfd)->first_file_filepos = SARMAG;
870 /* Cleared by bfd_zalloc above.
871 bfd_ardata (abfd)->cache = NULL;
872 bfd_ardata (abfd)->archive_head = NULL;
873 bfd_ardata (abfd)->symdefs = NULL;
874 bfd_ardata (abfd)->extended_names = NULL;
875 bfd_ardata (abfd)->extended_names_size = 0;
876 bfd_ardata (abfd)->tdata = NULL; */
878 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
879 || !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
881 if (bfd_get_error () != bfd_error_system_call)
882 bfd_set_error (bfd_error_wrong_format);
883 bfd_release (abfd, bfd_ardata (abfd));
884 bfd_ardata (abfd) = tdata_hold;
888 if (abfd->target_defaulted && bfd_has_map (abfd))
892 /* This archive has a map, so we may presume that the contents
893 are object files. Make sure that if the first file in the
894 archive can be recognized as an object file, it is for this
895 target. If not, assume that this is the wrong format. If
896 the first file is not an object file, somebody is doing
897 something weird, and we permit it so that ar -t will work.
899 This is done because any normal format will recognize any
900 normal archive, regardless of the format of the object files.
901 We do accept an empty archive. */
903 first = bfd_openr_next_archived_file (abfd, NULL);
906 first->target_defaulted = FALSE;
907 if (bfd_check_format (first, bfd_object)
908 && first->xvec != abfd->xvec)
909 bfd_set_error (bfd_error_wrong_object_format);
910 /* And we ought to close `first' here too. */
917 /* Some constants for a 32 bit BSD archive structure. We do not
918 support 64 bit archives presently; so far as I know, none actually
919 exist. Supporting them would require changing these constants, and
920 changing some H_GET_32 to H_GET_64. */
922 /* The size of an external symdef structure. */
923 #define BSD_SYMDEF_SIZE 8
925 /* The offset from the start of a symdef structure to the file offset. */
926 #define BSD_SYMDEF_OFFSET_SIZE 4
928 /* The size of the symdef count. */
929 #define BSD_SYMDEF_COUNT_SIZE 4
931 /* The size of the string count. */
932 #define BSD_STRING_COUNT_SIZE 4
934 /* Read a BSD-style archive symbol table. Returns FALSE on error,
938 do_slurp_bsd_armap (bfd *abfd)
940 struct areltdata *mapdata;
941 unsigned int counter;
942 bfd_byte *raw_armap, *rbase;
943 struct artdata *ardata = bfd_ardata (abfd);
945 bfd_size_type parsed_size, amt;
948 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
951 parsed_size = mapdata->parsed_size;
953 /* PR 17512: file: 883ff754. */
954 /* PR 17512: file: 0458885f. */
958 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
959 if (raw_armap == NULL)
962 if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
964 if (bfd_get_error () != bfd_error_system_call)
965 bfd_set_error (bfd_error_malformed_archive);
967 bfd_release (abfd, raw_armap);
971 ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
972 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
973 parsed_size - BSD_SYMDEF_COUNT_SIZE)
975 /* Probably we're using the wrong byte ordering. */
976 bfd_set_error (bfd_error_wrong_format);
981 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
982 stringbase = ((char *) rbase
983 + ardata->symdef_count * BSD_SYMDEF_SIZE
984 + BSD_STRING_COUNT_SIZE);
985 amt = ardata->symdef_count * sizeof (carsym);
986 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
987 if (!ardata->symdefs)
990 for (counter = 0, set = ardata->symdefs;
991 counter < ardata->symdef_count;
992 counter++, set++, rbase += BSD_SYMDEF_SIZE)
994 set->name = H_GET_32 (abfd, rbase) + stringbase;
995 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
998 ardata->first_file_filepos = bfd_tell (abfd);
999 /* Pad to an even boundary if you have to. */
1000 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1001 /* FIXME, we should provide some way to free raw_ardata when
1002 we are done using the strings from it. For now, it seems
1003 to be allocated on an objalloc anyway... */
1004 bfd_has_map (abfd) = TRUE;
1008 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1012 do_slurp_coff_armap (bfd *abfd)
1014 struct areltdata *mapdata;
1015 int *raw_armap, *rawptr;
1016 struct artdata *ardata = bfd_ardata (abfd);
1018 bfd_size_type stringsize;
1019 bfd_size_type parsed_size;
1021 bfd_size_type nsymz; /* Number of symbols in armap. */
1022 bfd_vma (*swap) (const void *);
1023 char int_buf[sizeof (long)];
1024 bfd_size_type carsym_size, ptrsize;
1027 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1028 if (mapdata == NULL)
1030 parsed_size = mapdata->parsed_size;
1033 if (bfd_bread (int_buf, 4, abfd) != 4)
1035 if (bfd_get_error () != bfd_error_system_call)
1036 bfd_set_error (bfd_error_malformed_archive);
1039 /* It seems that all numeric information in a coff archive is always
1040 in big endian format, nomatter the host or target. */
1042 nsymz = bfd_getb32 (int_buf);
1043 stringsize = parsed_size - (4 * nsymz) - 4;
1045 /* ... except that some archive formats are broken, and it may be our
1046 fault - the i960 little endian coff sometimes has big and sometimes
1047 little, because our tools changed. Here's a horrible hack to clean
1050 if (stringsize > 0xfffff
1051 && bfd_get_arch (abfd) == bfd_arch_i960
1052 && bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1054 /* This looks dangerous, let's do it the other way around. */
1055 nsymz = bfd_getl32 (int_buf);
1056 stringsize = parsed_size - (4 * nsymz) - 4;
1060 /* The coff armap must be read sequentially. So we construct a
1061 bsd-style one in core all at once, for simplicity. */
1063 if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
1066 carsym_size = (nsymz * sizeof (carsym));
1067 ptrsize = (4 * nsymz);
1069 if (carsym_size + stringsize + 1 <= carsym_size)
1072 ardata->symdefs = (struct carsym *) bfd_zalloc (abfd,
1073 carsym_size + stringsize + 1);
1074 if (ardata->symdefs == NULL)
1076 carsyms = ardata->symdefs;
1077 stringbase = ((char *) ardata->symdefs) + carsym_size;
1079 /* Allocate and read in the raw offsets. */
1080 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
1081 if (raw_armap == NULL)
1082 goto release_symdefs;
1083 if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
1084 || (bfd_bread (stringbase, stringsize, abfd) != stringsize))
1086 if (bfd_get_error () != bfd_error_system_call)
1087 bfd_set_error (bfd_error_malformed_archive);
1088 goto release_raw_armap;
1091 /* OK, build the carsyms. */
1092 for (i = 0; i < nsymz && stringsize > 0; i++)
1096 rawptr = raw_armap + i;
1097 carsyms->file_offset = swap ((bfd_byte *) rawptr);
1098 carsyms->name = stringbase;
1099 /* PR 17512: file: 4a1d50c1. */
1100 len = strnlen (stringbase, stringsize);
1101 if (len < stringsize)
1109 ardata->symdef_count = nsymz;
1110 ardata->first_file_filepos = bfd_tell (abfd);
1111 /* Pad to an even boundary if you have to. */
1112 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1114 bfd_has_map (abfd) = TRUE;
1115 bfd_release (abfd, raw_armap);
1117 /* Check for a second archive header (as used by PE). */
1119 struct areltdata *tmp;
1121 bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
1122 tmp = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1125 if (tmp->arch_header[0] == '/'
1126 && tmp->arch_header[1] == ' ')
1128 ardata->first_file_filepos +=
1129 (tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
1138 bfd_release (abfd, raw_armap);
1140 bfd_release (abfd, (ardata)->symdefs);
1144 /* This routine can handle either coff-style or bsd-style armaps
1145 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1148 bfd_slurp_armap (bfd *abfd)
1151 int i = bfd_bread (nextname, 16, abfd);
1158 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1161 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1162 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1163 return do_slurp_bsd_armap (abfd);
1164 else if (CONST_STRNEQ (nextname, "/ "))
1165 return do_slurp_coff_armap (abfd);
1166 else if (CONST_STRNEQ (nextname, "/SYM64/ "))
1168 /* 64bit (Irix 6) archive. */
1170 return _bfd_archive_64_bit_slurp_armap (abfd);
1172 bfd_set_error (bfd_error_wrong_format);
1176 else if (CONST_STRNEQ (nextname, "#1/20 "))
1178 /* Mach-O has a special name for armap when the map is sorted by name.
1179 However because this name has a space it is slightly more difficult
1184 if (bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
1186 /* Read the extended name. We know its length. */
1187 if (bfd_bread (extname, 20, abfd) != 20)
1189 if (bfd_seek (abfd, -(file_ptr) (sizeof (hdr) + 20), SEEK_CUR) != 0)
1192 if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
1193 || CONST_STRNEQ (extname, "__.SYMDEF"))
1194 return do_slurp_bsd_armap (abfd);
1197 bfd_has_map (abfd) = FALSE;
1201 /* Returns FALSE on error, TRUE otherwise. */
1202 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1203 header is in a slightly different order and the map name is '/'.
1204 This flavour is used by hp300hpux. */
1206 #define HPUX_SYMDEF_COUNT_SIZE 2
1209 bfd_slurp_bsd_armap_f2 (bfd *abfd)
1211 struct areltdata *mapdata;
1213 unsigned int counter;
1214 bfd_byte *raw_armap, *rbase;
1215 struct artdata *ardata = bfd_ardata (abfd);
1217 unsigned int stringsize;
1221 int i = bfd_bread (nextname, 16, abfd);
1228 /* The archive has at least 16 bytes in it. */
1229 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1232 if (CONST_STRNEQ (nextname, "__.SYMDEF ")
1233 || CONST_STRNEQ (nextname, "__.SYMDEF/ ")) /* Old Linux archives. */
1234 return do_slurp_bsd_armap (abfd);
1236 if (! CONST_STRNEQ (nextname, "/ "))
1238 bfd_has_map (abfd) = FALSE;
1242 mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1243 if (mapdata == NULL)
1246 if (mapdata->parsed_size < HPUX_SYMDEF_COUNT_SIZE + BSD_STRING_COUNT_SIZE)
1250 bfd_set_error (bfd_error_wrong_format);
1254 left = mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE - BSD_STRING_COUNT_SIZE;
1256 amt = mapdata->parsed_size;
1259 raw_armap = (bfd_byte *) bfd_zalloc (abfd, amt);
1260 if (raw_armap == NULL)
1263 if (bfd_bread (raw_armap, amt, abfd) != amt)
1265 if (bfd_get_error () != bfd_error_system_call)
1266 bfd_set_error (bfd_error_malformed_archive);
1270 ardata->symdef_count = H_GET_16 (abfd, raw_armap);
1274 stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
1275 if (stringsize > left)
1279 /* Skip sym count and string sz. */
1280 stringbase = ((char *) raw_armap
1281 + HPUX_SYMDEF_COUNT_SIZE
1282 + BSD_STRING_COUNT_SIZE);
1283 rbase = (bfd_byte *) stringbase + stringsize;
1284 amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
1288 ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt);
1289 if (!ardata->symdefs)
1292 for (counter = 0, set = ardata->symdefs;
1293 counter < ardata->symdef_count;
1294 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1296 set->name = H_GET_32 (abfd, rbase) + stringbase;
1297 set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1300 ardata->first_file_filepos = bfd_tell (abfd);
1301 /* Pad to an even boundary if you have to. */
1302 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1303 /* FIXME, we should provide some way to free raw_ardata when
1304 we are done using the strings from it. For now, it seems
1305 to be allocated on an objalloc anyway... */
1306 bfd_has_map (abfd) = TRUE;
1310 /** Extended name table.
1312 Normally archives support only 14-character filenames.
1314 Intel has extended the format: longer names are stored in a special
1315 element (the first in the archive, or second if there is an armap);
1316 the name in the ar_hdr is replaced by <space><index into filename
1317 element>. Index is the P.R. of an int (decimal). Data General have
1318 extended the format by using the prefix // for the special element. */
1320 /* Returns FALSE on error, TRUE otherwise. */
1323 _bfd_slurp_extended_name_table (bfd *abfd)
1326 struct areltdata *namedata;
1329 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1330 we probably don't want to return TRUE. */
1331 if (bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET) != 0)
1334 if (bfd_bread (nextname, 16, abfd) == 16)
1336 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
1339 if (! CONST_STRNEQ (nextname, "ARFILENAMES/ ")
1340 && ! CONST_STRNEQ (nextname, "// "))
1342 bfd_ardata (abfd)->extended_names = NULL;
1343 bfd_ardata (abfd)->extended_names_size = 0;
1347 namedata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
1348 if (namedata == NULL)
1351 amt = namedata->parsed_size;
1355 bfd_ardata (abfd)->extended_names_size = amt;
1356 bfd_ardata (abfd)->extended_names = (char *) bfd_zalloc (abfd, amt + 1);
1357 if (bfd_ardata (abfd)->extended_names == NULL)
1361 bfd_ardata (abfd)->extended_names = NULL;
1362 bfd_ardata (abfd)->extended_names_size = 0;
1366 if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
1368 if (bfd_get_error () != bfd_error_system_call)
1369 bfd_set_error (bfd_error_malformed_archive);
1370 bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
1371 bfd_ardata (abfd)->extended_names = NULL;
1375 /* Since the archive is supposed to be printable if it contains
1376 text, the entries in the list are newline-padded, not null
1377 padded. In SVR4-style archives, the names also have a
1378 trailing '/'. DOS/NT created archive often have \ in them
1379 We'll fix all problems here. */
1381 char *ext_names = bfd_ardata (abfd)->extended_names;
1382 char *temp = ext_names;
1383 char *limit = temp + namedata->parsed_size;
1385 for (; temp < limit; ++temp)
1387 if (*temp == ARFMAG[1])
1388 temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
1395 /* Pad to an even boundary if you have to. */
1396 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1397 bfd_ardata (abfd)->first_file_filepos +=
1398 (bfd_ardata (abfd)->first_file_filepos) % 2;
1407 /* Return a copy of the stuff in the filename between any :]> and a
1411 normalize (bfd *abfd, const char *file)
1417 first = file + strlen (file) - 1;
1420 while (first != file)
1424 if (*first == ':' || *first == ']' || *first == '>')
1432 copy = bfd_alloc (abfd, last - first + 1);
1436 memcpy (copy, first, last - first);
1437 copy[last - first] = 0;
1444 normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
1446 return lbasename (file);
1450 /* Adjust a relative path name based on the reference path.
1453 Relative path Reference path Result
1454 ------------- -------------- ------
1456 foo/bar.o lib.a foo/bar.o
1457 bar.o foo/lib.a ../bar.o
1458 foo/bar.o baz/lib.a ../foo/bar.o
1459 bar.o ../lib.a <parent of current dir>/bar.o
1460 ; ../bar.o ../lib.a bar.o
1461 ; ../bar.o lib.a ../bar.o
1462 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1463 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1464 bar.o foo/baz/lib.a ../../bar.o
1466 Note - the semicolons above are there to prevent the BFD chew
1467 utility from interpreting those lines as prototypes to put into
1468 the autogenerated bfd.h header...
1470 Note - the string is returned in a static buffer. */
1473 adjust_relative_path (const char * path, const char * ref_path)
1475 static char *pathbuf = NULL;
1476 static unsigned int pathbuf_len = 0;
1482 unsigned int dir_up = 0;
1483 unsigned int dir_down = 0;
1485 char * pwd = getpwd ();
1488 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1489 lpath = lrealpath (path);
1490 pathp = lpath == NULL ? path : lpath;
1492 rpath = lrealpath (ref_path);
1493 refp = rpath == NULL ? ref_path : rpath;
1495 /* Remove common leading path elements. */
1498 const char *e1 = pathp;
1499 const char *e2 = refp;
1501 while (*e1 && ! IS_DIR_SEPARATOR (*e1))
1503 while (*e2 && ! IS_DIR_SEPARATOR (*e2))
1505 if (*e1 == '\0' || *e2 == '\0' || e1 - pathp != e2 - refp
1506 || filename_ncmp (pathp, refp, e1 - pathp) != 0)
1512 len = strlen (pathp) + 1;
1513 /* For each leading path element in the reference path,
1514 insert "../" into the path. */
1515 for (; *refp; ++refp)
1516 if (IS_DIR_SEPARATOR (*refp))
1518 /* PR 12710: If the path element is "../" then instead of
1519 inserting "../" we need to insert the name of the directory
1520 at the current level. */
1521 if (refp > ref_path + 1
1529 /* If the lrealpath calls above succeeded then we should never
1530 see dir_up and dir_down both being non-zero. */
1536 down = pwd + strlen (pwd) - 1;
1538 while (dir_down && down > pwd)
1540 if (IS_DIR_SEPARATOR (*down))
1543 BFD_ASSERT (dir_down == 0);
1544 len += strlen (down) + 1;
1549 if (len > pathbuf_len)
1551 if (pathbuf != NULL)
1554 pathbuf = (char *) bfd_malloc (len);
1555 if (pathbuf == NULL)
1561 while (dir_up-- > 0)
1563 /* FIXME: Support Windows style path separators as well. */
1564 strcpy (newp, "../");
1569 sprintf (newp, "%s/%s", down, pathp);
1571 strcpy (newp, pathp);
1579 /* Build a BFD style extended name table. */
1582 _bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
1584 bfd_size_type *tablen,
1587 *name = "ARFILENAMES/";
1588 return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
1591 /* Build an SVR4 style extended name table. */
1594 _bfd_archive_coff_construct_extended_name_table (bfd *abfd,
1596 bfd_size_type *tablen,
1600 return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
1604 _bfd_noarchive_construct_extended_name_table (bfd *abfd ATTRIBUTE_UNUSED,
1605 char **tabloc ATTRIBUTE_UNUSED,
1606 bfd_size_type *len ATTRIBUTE_UNUSED,
1607 const char **name ATTRIBUTE_UNUSED)
1612 /* Follows archive_head and produces an extended name table if
1613 necessary. Returns (in tabloc) a pointer to an extended name
1614 table, and in tablen the length of the table. If it makes an entry
1615 it clobbers the filename so that the element may be written without
1616 further massage. Returns TRUE if it ran successfully, FALSE if
1617 something went wrong. A successful return may still involve a
1618 zero-length tablen! */
1621 _bfd_construct_extended_name_table (bfd *abfd,
1622 bfd_boolean trailing_slash,
1624 bfd_size_type *tablen)
1626 unsigned int maxname = ar_maxnamelen (abfd);
1627 bfd_size_type total_namelen = 0;
1630 const char *last_filename;
1634 last_filename = NULL;
1636 /* Figure out how long the table should be. */
1637 for (current = abfd->archive_head;
1639 current = current->archive_next)
1642 unsigned int thislen;
1644 if (bfd_is_thin_archive (abfd))
1646 const char *filename = current->filename;
1648 /* If the element being added is a member of another archive
1649 (i.e., we are flattening), use the containing archive's name. */
1650 if (current->my_archive
1651 && ! bfd_is_thin_archive (current->my_archive))
1652 filename = current->my_archive->filename;
1654 /* If the path is the same as the previous path seen,
1655 reuse it. This can happen when flattening a thin
1656 archive that contains other archives. */
1657 if (last_filename && filename_cmp (last_filename, filename) == 0)
1660 last_filename = filename;
1662 /* If the path is relative, adjust it relative to
1663 the containing archive. */
1664 if (! IS_ABSOLUTE_PATH (filename)
1665 && ! IS_ABSOLUTE_PATH (abfd->filename))
1666 normal = adjust_relative_path (filename, abfd->filename);
1670 /* In a thin archive, always store the full pathname
1671 in the extended name table. */
1672 total_namelen += strlen (normal) + 1;
1674 /* Leave room for trailing slash. */
1680 normal = normalize (current, current->filename);
1684 thislen = strlen (normal);
1686 if (thislen > maxname
1687 && (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
1690 if (thislen > maxname)
1692 /* Add one to leave room for \n. */
1693 total_namelen += thislen + 1;
1696 /* Leave room for trailing slash. */
1702 struct ar_hdr *hdr = arch_hdr (current);
1703 if (filename_ncmp (normal, hdr->ar_name, thislen) != 0
1704 || (thislen < sizeof hdr->ar_name
1705 && hdr->ar_name[thislen] != ar_padchar (current)))
1707 /* Must have been using extended format even though it
1708 didn't need to. Fix it to use normal format. */
1709 memcpy (hdr->ar_name, normal, thislen);
1710 if (thislen < maxname
1711 || (thislen == maxname && thislen < sizeof hdr->ar_name))
1712 hdr->ar_name[thislen] = ar_padchar (current);
1717 if (total_namelen == 0)
1720 *tabloc = (char *) bfd_zalloc (abfd, total_namelen);
1721 if (*tabloc == NULL)
1724 *tablen = total_namelen;
1727 last_filename = NULL;
1730 for (current = abfd->archive_head;
1732 current = current->archive_next)
1735 unsigned int thislen;
1737 const char *filename = current->filename;
1739 if (bfd_is_thin_archive (abfd))
1741 /* If the element being added is a member of another archive
1742 (i.e., we are flattening), use the containing archive's name. */
1743 if (current->my_archive
1744 && ! bfd_is_thin_archive (current->my_archive))
1745 filename = current->my_archive->filename;
1746 /* If the path is the same as the previous path seen,
1747 reuse it. This can happen when flattening a thin
1748 archive that contains other archives.
1749 If the path is relative, adjust it relative to
1750 the containing archive. */
1751 if (last_filename && filename_cmp (last_filename, filename) == 0)
1752 normal = last_filename;
1753 else if (! IS_ABSOLUTE_PATH (filename)
1754 && ! IS_ABSOLUTE_PATH (abfd->filename))
1755 normal = adjust_relative_path (filename, abfd->filename);
1761 normal = normalize (current, filename);
1766 thislen = strlen (normal);
1767 if (thislen > maxname || bfd_is_thin_archive (abfd))
1769 /* Works for now; may need to be re-engineered if we
1770 encounter an oddball archive format and want to
1771 generalise this hack. */
1772 struct ar_hdr *hdr = arch_hdr (current);
1773 if (normal == last_filename)
1774 stroff = last_stroff;
1777 strcpy (strptr, normal);
1778 if (! trailing_slash)
1779 strptr[thislen] = ARFMAG[1];
1782 strptr[thislen] = '/';
1783 strptr[thislen + 1] = ARFMAG[1];
1785 stroff = strptr - *tabloc;
1786 last_stroff = stroff;
1788 hdr->ar_name[0] = ar_padchar (current);
1789 if (bfd_is_thin_archive (abfd) && current->origin > 0)
1791 int len = snprintf (hdr->ar_name + 1, maxname - 1, "%-ld:",
1793 _bfd_ar_spacepad (hdr->ar_name + 1 + len, maxname - 1 - len,
1795 current->origin - sizeof (struct ar_hdr));
1798 _bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld", stroff);
1799 if (normal != last_filename)
1801 strptr += thislen + 1;
1804 last_filename = filename;
1812 /* Do not construct an extended name table but transforms name field into
1813 its extended form. */
1816 _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
1818 bfd_size_type *tablen,
1821 unsigned int maxname = ar_maxnamelen (abfd);
1828 for (current = abfd->archive_head;
1830 current = current->archive_next)
1832 const char *normal = normalize (current, current->filename);
1839 for (len = 0; normal[len]; len++)
1840 if (normal[len] == ' ')
1843 if (len > maxname || has_space)
1845 struct ar_hdr *hdr = arch_hdr (current);
1847 len = (len + 3) & ~3;
1848 arch_eltdata (current)->extra_size = len;
1849 _bfd_ar_spacepad (hdr->ar_name, maxname, "#1/%lu", len);
1856 /* Write an archive header. */
1859 _bfd_generic_write_ar_hdr (bfd *archive, bfd *abfd)
1861 struct ar_hdr *hdr = arch_hdr (abfd);
1863 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1868 /* Write an archive header using BSD4.4 convention. */
1871 _bfd_bsd44_write_ar_hdr (bfd *archive, bfd *abfd)
1873 struct ar_hdr *hdr = arch_hdr (abfd);
1875 if (is_bsd44_extended_name (hdr->ar_name))
1877 /* This is a BSD 4.4 extended name. */
1878 const char *fullname = normalize (abfd, abfd->filename);
1879 unsigned int len = strlen (fullname);
1880 unsigned int padded_len = (len + 3) & ~3;
1882 BFD_ASSERT (padded_len == arch_eltdata (abfd)->extra_size);
1884 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size),
1885 arch_eltdata (abfd)->parsed_size + padded_len))
1888 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1891 if (bfd_bwrite (fullname, len, archive) != len)
1896 static const char pad[3] = { 0, 0, 0 };
1898 len = 4 - (len & 3);
1899 if (bfd_bwrite (pad, len, archive) != len)
1905 if (bfd_bwrite (hdr, sizeof (*hdr), archive) != sizeof (*hdr))
1912 _bfd_noarchive_write_ar_hdr (bfd *archive, bfd *abfd ATTRIBUTE_UNUSED)
1914 return _bfd_bool_bfd_false_error (archive);
1917 /* A couple of functions for creating ar_hdrs. */
1919 #ifdef HPUX_LARGE_AR_IDS
1920 /* Function to encode large UID/GID values according to HP. */
1923 hpux_uid_gid_encode (char str[6], long int id)
1927 str[5] = '@' + (id & 3);
1930 for (cnt = 4; cnt >= 0; --cnt, id >>= 6)
1931 str[cnt] = ' ' + (id & 0x3f);
1933 #endif /* HPUX_LARGE_AR_IDS */
1943 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1944 make one. The filename must refer to a filename in the filesystem.
1945 The filename field of the ar_hdr will NOT be initialized. If member
1946 is set, and it's an in-memory bfd, we fake it. */
1948 static struct areltdata *
1949 bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
1952 struct areltdata *ared;
1956 if (member && (member->flags & BFD_IN_MEMORY) != 0)
1958 /* Assume we just "made" the member, and fake it. */
1959 struct bfd_in_memory *bim = (struct bfd_in_memory *) member->iostream;
1960 time (&status.st_mtime);
1961 status.st_uid = getuid ();
1962 status.st_gid = getgid ();
1963 status.st_mode = 0644;
1964 status.st_size = bim->size;
1966 else if (stat (filename, &status) != 0)
1968 bfd_set_error (bfd_error_system_call);
1972 /* If the caller requested that the BFD generate deterministic output,
1973 fake values for modification time, UID, GID, and file mode. */
1974 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
1976 status.st_mtime = 0;
1979 status.st_mode = 0644;
1982 amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
1983 ared = (struct areltdata *) bfd_zmalloc (amt);
1986 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1988 /* ar headers are space padded, not null padded! */
1989 memset (hdr, ' ', sizeof (struct ar_hdr));
1991 _bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
1993 #ifdef HPUX_LARGE_AR_IDS
1994 /* HP has a very "special" way to handle UID/GID's with numeric values
1996 if (status.st_uid > 99999)
1997 hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
2000 _bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
2002 #ifdef HPUX_LARGE_AR_IDS
2003 /* HP has a very "special" way to handle UID/GID's with numeric values
2005 if (status.st_gid > 99999)
2006 hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
2009 _bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
2011 _bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
2013 if (status.st_size - (bfd_size_type) status.st_size != 0)
2015 bfd_set_error (bfd_error_file_too_big);
2019 if (!_bfd_ar_sizepad (hdr->ar_size, sizeof (hdr->ar_size), status.st_size))
2024 memcpy (hdr->ar_fmag, ARFMAG, 2);
2025 ared->parsed_size = status.st_size;
2026 ared->arch_header = (char *) hdr;
2031 /* Analogous to stat call. */
2034 bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
2039 if (abfd->arelt_data == NULL)
2041 bfd_set_error (bfd_error_invalid_operation);
2045 hdr = arch_hdr (abfd);
2046 /* PR 17512: file: 3d9e9fe9. */
2049 #define foo(arelt, stelt, size) \
2050 buf->stelt = strtol (hdr->arelt, &aloser, size); \
2051 if (aloser == hdr->arelt) \
2054 /* Some platforms support special notations for large IDs. */
2055 #ifdef HPUX_LARGE_AR_IDS
2056 # define foo2(arelt, stelt, size) \
2057 if (hdr->arelt[5] == ' ') \
2059 foo (arelt, stelt, size); \
2064 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
2066 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
2069 buf->stelt += hdr->arelt[cnt] - ' '; \
2071 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
2074 buf->stelt += hdr->arelt[5] - '@'; \
2077 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
2080 foo (ar_date, st_mtime, 10);
2081 foo2 (ar_uid, st_uid, 10);
2082 foo2 (ar_gid, st_gid, 10);
2083 foo (ar_mode, st_mode, 8);
2085 buf->st_size = arch_eltdata (abfd)->parsed_size;
2091 bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2093 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2094 Fortunately ic960 users will never use that option. Fixing this
2095 is very hard; fortunately I know how to do it and will do so once
2096 intel's release is out the door. */
2098 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2100 const char *filename;
2101 size_t maxlen = ar_maxnamelen (abfd);
2103 if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
2105 bfd_bsd_truncate_arname (abfd, pathname, arhdr);
2109 filename = normalize (abfd, pathname);
2110 if (filename == NULL)
2116 length = strlen (filename);
2118 if (length <= maxlen)
2119 memcpy (hdr->ar_name, filename, length);
2121 /* Add the padding character if there is room for it. */
2123 || (length == maxlen && length < sizeof hdr->ar_name))
2124 (hdr->ar_name)[length] = ar_padchar (abfd);
2128 bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2130 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2132 const char *filename = lbasename (pathname);
2133 size_t maxlen = ar_maxnamelen (abfd);
2135 length = strlen (filename);
2137 if (length <= maxlen)
2138 memcpy (hdr->ar_name, filename, length);
2141 /* pathname: meet procrustes */
2142 memcpy (hdr->ar_name, filename, maxlen);
2146 if (length < maxlen)
2147 (hdr->ar_name)[length] = ar_padchar (abfd);
2150 /* Store name into ar header. Truncates the name to fit.
2151 1> strip pathname to be just the basename.
2152 2> if it's short enuf to fit, stuff it in.
2153 3> If it doesn't end with .o, truncate it to fit
2154 4> truncate it before the .o, append .o, stuff THAT in. */
2156 /* This is what gnu ar does. It's better but incompatible with the
2160 bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
2162 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
2164 const char *filename = lbasename (pathname);
2165 size_t maxlen = ar_maxnamelen (abfd);
2167 length = strlen (filename);
2169 if (length <= maxlen)
2170 memcpy (hdr->ar_name, filename, length);
2173 /* pathname: meet procrustes. */
2174 memcpy (hdr->ar_name, filename, maxlen);
2175 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
2177 hdr->ar_name[maxlen - 2] = '.';
2178 hdr->ar_name[maxlen - 1] = 'o';
2184 (hdr->ar_name)[length] = ar_padchar (abfd);
2188 _bfd_noarchive_truncate_arname (bfd *abfd ATTRIBUTE_UNUSED,
2189 const char *pathname ATTRIBUTE_UNUSED,
2190 char *arhdr ATTRIBUTE_UNUSED)
2194 /* The BFD is open for write and has its format set to bfd_archive. */
2197 _bfd_write_archive_contents (bfd *arch)
2200 char *etable = NULL;
2201 bfd_size_type elength = 0;
2202 const char *ename = NULL;
2203 bfd_boolean makemap = bfd_has_map (arch);
2204 /* If no .o's, don't bother to make a map. */
2205 bfd_boolean hasobjects = FALSE;
2206 bfd_size_type wrote;
2210 /* Verify the viability of all entries; if any of them live in the
2211 filesystem (as opposed to living in an archive open for input)
2212 then construct a fresh ar_hdr for them. */
2213 for (current = arch->archive_head;
2215 current = current->archive_next)
2217 /* This check is checking the bfds for the objects we're reading
2218 from (which are usually either an object file or archive on
2219 disk), not the archive entries we're writing to. We don't
2220 actually create bfds for the archive members, we just copy
2221 them byte-wise when we write out the archive. */
2222 if (bfd_write_p (current))
2224 bfd_set_error (bfd_error_invalid_operation);
2227 if (!current->arelt_data)
2229 current->arelt_data =
2230 bfd_ar_hdr_from_filesystem (arch, current->filename, current);
2231 if (!current->arelt_data)
2234 /* Put in the file name. */
2235 BFD_SEND (arch, _bfd_truncate_arname,
2236 (arch, current->filename, (char *) arch_hdr (current)));
2239 if (makemap && ! hasobjects)
2240 { /* Don't bother if we won't make a map! */
2241 if ((bfd_check_format (current, bfd_object)))
2246 if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
2247 (arch, &etable, &elength, &ename)))
2250 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
2253 if (bfd_is_thin_archive (arch))
2255 wrote = bfd_bwrite (armag, SARMAG, arch);
2256 if (wrote != SARMAG)
2259 if (makemap && hasobjects)
2261 if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
2269 memset (&hdr, ' ', sizeof (struct ar_hdr));
2270 memcpy (hdr.ar_name, ename, strlen (ename));
2271 /* Round size up to even number in archive header. */
2272 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size),
2273 (elength + 1) & ~(bfd_size_type) 1))
2275 memcpy (hdr.ar_fmag, ARFMAG, 2);
2276 if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2277 != sizeof (struct ar_hdr))
2278 || bfd_bwrite (etable, elength, arch) != elength)
2280 if ((elength % 2) == 1)
2282 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2287 for (current = arch->archive_head;
2289 current = current->archive_next)
2291 char buffer[DEFAULT_BUFFERSIZE];
2292 bfd_size_type remaining = arelt_size (current);
2294 /* Write ar header. */
2295 if (!_bfd_write_ar_hdr (arch, current))
2297 if (bfd_is_thin_archive (arch))
2299 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
2304 unsigned int amt = DEFAULT_BUFFERSIZE;
2306 if (amt > remaining)
2309 if (bfd_bread (buffer, amt, current) != amt)
2311 if (bfd_get_error () != bfd_error_system_call)
2312 bfd_set_error (bfd_error_file_truncated);
2315 if (bfd_bwrite (buffer, amt, arch) != amt)
2320 if ((arelt_size (current) % 2) == 1)
2322 if (bfd_bwrite (&ARFMAG[1], 1, arch) != 1)
2327 if (makemap && hasobjects)
2329 /* Verify the timestamp in the archive file. If it would not be
2330 accepted by the linker, rewrite it until it would be. If
2331 anything odd happens, break out and just return. (The
2332 Berkeley linker checks the timestamp and refuses to read the
2333 table-of-contents if it is >60 seconds less than the file's
2334 modified-time. That painful hack requires this painful hack. */
2338 if (bfd_update_armap_timestamp (arch))
2341 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2343 while (++tries < 6);
2349 bfd_set_input_error (current, bfd_get_error ());
2353 /* Note that the namidx for the first symbol is 0. */
2356 _bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
2358 char *first_name = NULL;
2360 file_ptr elt_no = 0;
2361 struct orl *map = NULL;
2362 unsigned int orl_max = 1024; /* Fine initial default. */
2363 unsigned int orl_count = 0;
2365 asymbol **syms = NULL;
2370 /* Dunno if this is the best place for this info... */
2372 elength += sizeof (struct ar_hdr);
2373 elength += elength % 2;
2375 amt = orl_max * sizeof (struct orl);
2376 map = (struct orl *) bfd_malloc (amt);
2380 /* We put the symbol names on the arch objalloc, and then discard
2382 first_name = (char *) bfd_alloc (arch, 1);
2383 if (first_name == NULL)
2386 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2387 while (arch->archive_head
2388 && strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
2389 arch->archive_head = arch->archive_head->archive_next;
2391 /* Map over each element. */
2392 for (current = arch->archive_head;
2394 current = current->archive_next, elt_no++)
2396 if (bfd_check_format (current, bfd_object)
2397 && (bfd_get_file_flags (current) & HAS_SYMS) != 0)
2403 storage = bfd_get_symtab_upper_bound (current);
2409 if (storage > syms_max)
2414 syms = (asymbol **) bfd_malloc (syms_max);
2418 symcount = bfd_canonicalize_symtab (current, syms);
2422 /* Now map over all the symbols, picking out the ones we
2424 for (src_count = 0; src_count < symcount; src_count++)
2426 flagword flags = (syms[src_count])->flags;
2427 asection *sec = syms[src_count]->section;
2429 if (((flags & (BSF_GLOBAL
2432 | BSF_GNU_UNIQUE)) != 0
2433 || bfd_is_com_section (sec))
2434 && ! bfd_is_und_section (sec))
2436 bfd_size_type namelen;
2437 struct orl *new_map;
2439 /* This symbol will go into the archive header. */
2440 if (orl_count == orl_max)
2443 amt = orl_max * sizeof (struct orl);
2444 new_map = (struct orl *) bfd_realloc (map, amt);
2445 if (new_map == NULL)
2451 if (syms[src_count]->name[0] == '_'
2452 && syms[src_count]->name[1] == '_'
2453 && strcmp (syms[src_count]->name
2454 + (syms[src_count]->name[2] == '_'),
2455 "__gnu_lto_slim") == 0)
2457 (_("%pB: plugin needed to handle lto object"),
2459 namelen = strlen (syms[src_count]->name);
2460 amt = sizeof (char *);
2461 map[orl_count].name = (char **) bfd_alloc (arch, amt);
2462 if (map[orl_count].name == NULL)
2464 *(map[orl_count].name) = (char *) bfd_alloc (arch,
2466 if (*(map[orl_count].name) == NULL)
2468 strcpy (*(map[orl_count].name), syms[src_count]->name);
2469 map[orl_count].u.abfd = current;
2470 map[orl_count].namidx = stridx;
2472 stridx += namelen + 1;
2478 /* Now ask the BFD to free up any cached information, so we
2479 don't fill all of memory with symbol tables. */
2480 if (! bfd_free_cached_info (current))
2485 /* OK, now we have collected all the data, let's write them out. */
2486 ret = BFD_SEND (arch, write_armap,
2487 (arch, elength, map, orl_count, stridx));
2493 if (first_name != NULL)
2494 bfd_release (arch, first_name);
2503 if (first_name != NULL)
2504 bfd_release (arch, first_name);
2510 _bfd_bsd_write_armap (bfd *arch,
2511 unsigned int elength,
2513 unsigned int orl_count,
2516 int padit = stridx & 1;
2517 unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
2518 unsigned int stringsize = stridx + padit;
2519 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2520 unsigned int mapsize = ranlibsize + stringsize + 8;
2521 file_ptr firstreal, first;
2529 first = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
2533 current = arch->archive_head;
2534 last_elt = current; /* Last element arch seen. */
2535 for (count = 0; count < orl_count; count++)
2537 unsigned int offset;
2539 if (map[count].u.abfd != last_elt)
2543 struct areltdata *ared = arch_eltdata (current);
2545 firstreal += (ared->parsed_size + ared->extra_size
2546 + sizeof (struct ar_hdr));
2547 firstreal += firstreal % 2;
2548 current = current->archive_next;
2550 while (current != map[count].u.abfd);
2553 /* The archive file format only has 4 bytes to store the offset
2554 of the member. Generate 64-bit archive if an archive is past
2556 offset = (unsigned int) firstreal;
2557 if (firstreal != (file_ptr) offset)
2558 return _bfd_archive_64_bit_write_armap (arch, elength, map,
2565 /* If deterministic, we use 0 as the timestamp in the map.
2566 Some linkers may require that the archive filesystem modification
2567 time is less than (or near to) the archive map timestamp. Those
2568 linkers should not be used with deterministic mode. (GNU ld and
2569 Gold do not have this restriction.) */
2570 bfd_ardata (arch)->armap_timestamp = 0;
2573 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0)
2575 struct stat statbuf;
2577 if (stat (arch->filename, &statbuf) == 0)
2578 bfd_ardata (arch)->armap_timestamp = (statbuf.st_mtime
2579 + ARMAP_TIME_OFFSET);
2584 memset (&hdr, ' ', sizeof (struct ar_hdr));
2585 memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
2586 bfd_ardata (arch)->armap_datepos = (SARMAG
2587 + offsetof (struct ar_hdr, ar_date[0]));
2588 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2589 bfd_ardata (arch)->armap_timestamp);
2590 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", uid);
2591 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", gid);
2592 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2594 memcpy (hdr.ar_fmag, ARFMAG, 2);
2595 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2596 != sizeof (struct ar_hdr))
2598 H_PUT_32 (arch, ranlibsize, temp);
2599 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2603 current = arch->archive_head;
2604 last_elt = current; /* Last element arch seen. */
2605 for (count = 0; count < orl_count; count++)
2607 unsigned int offset;
2608 bfd_byte buf[BSD_SYMDEF_SIZE];
2610 if (map[count].u.abfd != last_elt)
2614 struct areltdata *ared = arch_eltdata (current);
2616 firstreal += (ared->parsed_size + ared->extra_size
2617 + sizeof (struct ar_hdr));
2618 firstreal += firstreal % 2;
2619 current = current->archive_next;
2621 while (current != map[count].u.abfd);
2624 /* The archive file format only has 4 bytes to store the offset
2625 of the member. Check to make sure that firstreal has not grown
2627 offset = (unsigned int) firstreal;
2628 if (firstreal != (file_ptr) offset)
2630 bfd_set_error (bfd_error_file_truncated);
2635 H_PUT_32 (arch, map[count].namidx, buf);
2636 H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
2637 if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
2642 /* Now write the strings themselves. */
2643 H_PUT_32 (arch, stringsize, temp);
2644 if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
2646 for (count = 0; count < orl_count; count++)
2648 size_t len = strlen (*map[count].name) + 1;
2650 if (bfd_bwrite (*map[count].name, len, arch) != len)
2654 /* The spec sez this should be a newline. But in order to be
2655 bug-compatible for sun's ar we use a null. */
2658 if (bfd_bwrite ("", 1, arch) != 1)
2665 /* At the end of archive file handling, update the timestamp in the
2666 file, so the linker will accept it.
2668 Return TRUE if the timestamp was OK, or an unusual problem happened.
2669 Return FALSE if we updated the timestamp. */
2672 _bfd_archive_bsd_update_armap_timestamp (bfd *arch)
2674 struct stat archstat;
2677 /* If creating deterministic archives, just leave the timestamp as-is. */
2678 if ((arch->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2681 /* Flush writes, get last-write timestamp from file, and compare it
2682 to the timestamp IN the file. */
2684 if (bfd_stat (arch, &archstat) == -1)
2686 bfd_perror (_("Reading archive file mod timestamp"));
2688 /* Can't read mod time for some reason. */
2691 if (((long) archstat.st_mtime) <= bfd_ardata (arch)->armap_timestamp)
2692 /* OK by the linker's rules. */
2695 /* Update the timestamp. */
2696 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
2698 /* Prepare an ASCII version suitable for writing. */
2699 memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
2700 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2701 bfd_ardata (arch)->armap_timestamp);
2703 /* Write it into the file. */
2704 bfd_ardata (arch)->armap_datepos = (SARMAG
2705 + offsetof (struct ar_hdr, ar_date[0]));
2706 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
2707 || (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
2708 != sizeof (hdr.ar_date)))
2710 bfd_perror (_("Writing updated armap timestamp"));
2712 /* Some error while writing. */
2716 /* We updated the timestamp successfully. */
2720 /* A coff armap looks like :
2722 struct ar_hdr with name = '/'
2724 offset of file for symbol 0
2725 offset of file for symbol 1
2727 offset of file for symbol n-1
2734 _bfd_coff_write_armap (bfd *arch,
2735 unsigned int elength,
2737 unsigned int symbol_count,
2740 /* The size of the ranlib is the number of exported symbols in the
2741 archive * the number of bytes in an int, + an int for the count. */
2742 unsigned int ranlibsize = (symbol_count * 4) + 4;
2743 unsigned int stringsize = stridx;
2744 unsigned int mapsize = stringsize + ranlibsize;
2745 file_ptr archive_member_file_ptr;
2746 file_ptr first_archive_member_file_ptr;
2747 bfd *current = arch->archive_head;
2750 int padit = mapsize & 1;
2755 /* Work out where the first object file will go in the archive. */
2756 first_archive_member_file_ptr = (mapsize
2758 + sizeof (struct ar_hdr)
2762 current = arch->archive_head;
2764 archive_member_file_ptr = first_archive_member_file_ptr;
2765 while (current != NULL && count < symbol_count)
2767 /* For each symbol which is used defined in this object, write
2768 out the object file's address in the archive. */
2770 while (count < symbol_count && map[count].u.abfd == current)
2772 unsigned int offset = (unsigned int) archive_member_file_ptr;
2774 /* Generate 64-bit archive if an archive is past its 4Gb
2776 if (archive_member_file_ptr != (file_ptr) offset)
2777 return _bfd_archive_64_bit_write_armap (arch, elength, map,
2778 symbol_count, stridx);
2781 archive_member_file_ptr += sizeof (struct ar_hdr);
2782 if (! bfd_is_thin_archive (arch))
2784 /* Add size of this archive entry. */
2785 archive_member_file_ptr += arelt_size (current);
2786 /* Remember about the even alignment. */
2787 archive_member_file_ptr += archive_member_file_ptr % 2;
2789 current = current->archive_next;
2793 memset (&hdr, ' ', sizeof (struct ar_hdr));
2794 hdr.ar_name[0] = '/';
2795 if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
2797 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
2798 ((arch->flags & BFD_DETERMINISTIC_OUTPUT) == 0
2799 ? time (NULL) : 0));
2800 /* This, at least, is what Intel coff sets the values to. */
2801 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
2802 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
2803 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
2804 memcpy (hdr.ar_fmag, ARFMAG, 2);
2806 /* Write the ar header for this item and the number of symbols. */
2807 if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
2808 != sizeof (struct ar_hdr))
2811 if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
2814 /* Two passes, first write the file offsets for each symbol -
2815 remembering that each offset is on a two byte boundary. */
2817 /* Write out the file offset for the file associated with each
2818 symbol, and remember to keep the offsets padded out. */
2820 current = arch->archive_head;
2822 archive_member_file_ptr = first_archive_member_file_ptr;
2823 while (current != NULL && count < symbol_count)
2825 /* For each symbol which is used defined in this object, write
2826 out the object file's address in the archive. */
2828 while (count < symbol_count && map[count].u.abfd == current)
2830 unsigned int offset = (unsigned int) archive_member_file_ptr;
2832 /* Catch an attempt to grow an archive past its 4Gb limit. */
2833 if (archive_member_file_ptr != (file_ptr) offset)
2835 bfd_set_error (bfd_error_file_truncated);
2838 if (!bfd_write_bigendian_4byte_int (arch, offset))
2842 archive_member_file_ptr += sizeof (struct ar_hdr);
2843 if (! bfd_is_thin_archive (arch))
2845 /* Add size of this archive entry. */
2846 archive_member_file_ptr += arelt_size (current);
2847 /* Remember about the even alignment. */
2848 archive_member_file_ptr += archive_member_file_ptr % 2;
2850 current = current->archive_next;
2853 /* Now write the strings themselves. */
2854 for (count = 0; count < symbol_count; count++)
2856 size_t len = strlen (*map[count].name) + 1;
2858 if (bfd_bwrite (*map[count].name, len, arch) != len)
2862 /* The spec sez this should be a newline. But in order to be
2863 bug-compatible for arc960 we use a null. */
2866 if (bfd_bwrite ("", 1, arch) != 1)
2874 _bfd_noarchive_write_armap
2875 (bfd *arch ATTRIBUTE_UNUSED,
2876 unsigned int elength ATTRIBUTE_UNUSED,
2877 struct orl *map ATTRIBUTE_UNUSED,
2878 unsigned int orl_count ATTRIBUTE_UNUSED,
2879 int stridx ATTRIBUTE_UNUSED)
2885 archive_close_worker (void **slot, void *inf ATTRIBUTE_UNUSED)
2887 struct ar_cache *ent = (struct ar_cache *) *slot;
2889 bfd_close_all_done (ent->arbfd);
2894 _bfd_archive_close_and_cleanup (bfd *abfd)
2896 if (bfd_read_p (abfd) && abfd->format == bfd_archive)
2902 /* Close nested archives (if this bfd is a thin archive). */
2903 for (nbfd = abfd->nested_archives; nbfd; nbfd = next)
2905 next = nbfd->archive_next;
2909 htab = bfd_ardata (abfd)->cache;
2912 htab_traverse_noresize (htab, archive_close_worker, NULL);
2914 bfd_ardata (abfd)->cache = NULL;
2917 if (arch_eltdata (abfd) != NULL)
2919 struct areltdata *ared = arch_eltdata (abfd);
2920 htab_t htab = (htab_t) ared->parent_cache;
2924 struct ar_cache ent;
2927 ent.ptr = ared->key;
2928 slot = htab_find_slot (htab, &ent, NO_INSERT);
2931 BFD_ASSERT (((struct ar_cache *) *slot)->arbfd == abfd);
2932 htab_clear_slot (htab, slot);
2936 if (abfd->is_linker_output)
2937 (*abfd->link.hash->hash_table_free) (abfd);