1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2014 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
);
322 hash_file_ptr (const void * p
)
324 return (hashval_t
) (((struct ar_cache
*) p
)->ptr
);
327 /* Returns non-zero if P1 and P2 are equal. */
330 eq_file_ptr (const void * p1
, const void * p2
)
332 struct ar_cache
*arc1
= (struct ar_cache
*) p1
;
333 struct ar_cache
*arc2
= (struct ar_cache
*) p2
;
334 return arc1
->ptr
== arc2
->ptr
;
337 /* The calloc function doesn't always take size_t (e.g. on VMS)
338 so wrap it to avoid a compile time warning. */
341 _bfd_calloc_wrapper (size_t a
, size_t b
)
343 return calloc (a
, b
);
346 /* Kind of stupid to call cons for each one, but we don't do too many. */
349 _bfd_add_bfd_to_archive_cache (bfd
*arch_bfd
, file_ptr filepos
, bfd
*new_elt
)
351 struct ar_cache
*cache
;
352 htab_t hash_table
= bfd_ardata (arch_bfd
)->cache
;
354 /* If the hash table hasn't been created, create it. */
355 if (hash_table
== NULL
)
357 hash_table
= htab_create_alloc (16, hash_file_ptr
, eq_file_ptr
,
358 NULL
, _bfd_calloc_wrapper
, free
);
359 if (hash_table
== NULL
)
361 bfd_ardata (arch_bfd
)->cache
= hash_table
;
364 /* Insert new_elt into the hash table by filepos. */
365 cache
= (struct ar_cache
*) bfd_zalloc (arch_bfd
, sizeof (struct ar_cache
));
366 cache
->ptr
= filepos
;
367 cache
->arbfd
= new_elt
;
368 *htab_find_slot (hash_table
, (const void *) cache
, INSERT
) = cache
;
370 /* Provide a means of accessing this from child. */
371 arch_eltdata (new_elt
)->parent_cache
= hash_table
;
372 arch_eltdata (new_elt
)->key
= filepos
;
378 _bfd_find_nested_archive (bfd
*arch_bfd
, const char *filename
)
383 /* PR 15140: Don't allow a nested archive pointing to itself. */
384 if (filename_cmp (filename
, arch_bfd
->filename
) == 0)
386 bfd_set_error (bfd_error_malformed_archive
);
390 for (abfd
= arch_bfd
->nested_archives
;
392 abfd
= abfd
->archive_next
)
394 if (filename_cmp (filename
, abfd
->filename
) == 0)
398 if (!arch_bfd
->target_defaulted
)
399 target
= arch_bfd
->xvec
->name
;
400 abfd
= bfd_openr (filename
, target
);
403 abfd
->archive_next
= arch_bfd
->nested_archives
;
404 arch_bfd
->nested_archives
= abfd
;
409 /* The name begins with space. Hence the rest of the name is an index into
413 get_extended_arelt_filename (bfd
*arch
, const char *name
, file_ptr
*originp
)
415 unsigned long table_index
= 0;
418 /* Should extract string so that I can guarantee not to overflow into
419 the next region, but I'm too lazy. */
421 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
422 table_index
= strtol (name
+ 1, (char **) &endp
, 10);
423 if (errno
!= 0 || table_index
>= bfd_ardata (arch
)->extended_names_size
)
425 bfd_set_error (bfd_error_malformed_archive
);
428 /* In a thin archive, a member of an archive-within-an-archive
429 will have the offset in the inner archive encoded here. */
430 if (bfd_is_thin_archive (arch
) && endp
!= NULL
&& *endp
== ':')
432 file_ptr origin
= strtol (endp
+ 1, NULL
, 10);
436 bfd_set_error (bfd_error_malformed_archive
);
444 return bfd_ardata (arch
)->extended_names
+ table_index
;
447 /* This functions reads an arch header and returns an areltdata pointer, or
450 Presumes the file pointer is already in the right place (ie pointing
451 to the ar_hdr in the file). Moves the file pointer; on success it
452 should be pointing to the front of the file contents; on failure it
453 could have been moved arbitrarily. */
456 _bfd_generic_read_ar_hdr (bfd
*abfd
)
458 return _bfd_generic_read_ar_hdr_mag (abfd
, NULL
);
461 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
462 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
465 _bfd_generic_read_ar_hdr_mag (bfd
*abfd
, const char *mag
)
468 char *hdrp
= (char *) &hdr
;
469 bfd_size_type parsed_size
;
470 struct areltdata
*ared
;
471 char *filename
= NULL
;
472 bfd_size_type namelen
= 0;
473 bfd_size_type allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
476 unsigned int extra_size
= 0;
480 if (bfd_bread (hdrp
, sizeof (struct ar_hdr
), abfd
) != sizeof (struct ar_hdr
))
482 if (bfd_get_error () != bfd_error_system_call
)
483 bfd_set_error (bfd_error_no_more_archived_files
);
486 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
488 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
490 bfd_set_error (bfd_error_malformed_archive
);
495 fmag_save
= hdr
.ar_fmag
[0];
497 scan
= sscanf (hdr
.ar_size
, "%" BFD_VMA_FMT
"u", &parsed_size
);
498 hdr
.ar_fmag
[0] = fmag_save
;
501 bfd_set_error (bfd_error_malformed_archive
);
505 /* Extract the filename from the archive - there are two ways to
506 specify an extended name table, either the first char of the
507 name is a space, or it's a slash. */
508 if ((hdr
.ar_name
[0] == '/'
509 || (hdr
.ar_name
[0] == ' '
510 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
511 && bfd_ardata (abfd
)->extended_names
!= NULL
)
513 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
, &origin
);
514 if (filename
== NULL
)
517 /* BSD4.4-style long filename. */
518 else if (is_bsd44_extended_name (hdr
.ar_name
))
520 /* BSD-4.4 extended name */
521 namelen
= atoi (&hdr
.ar_name
[3]);
522 allocsize
+= namelen
+ 1;
523 parsed_size
-= namelen
;
524 extra_size
= namelen
;
526 allocptr
= (char *) bfd_zmalloc (allocsize
);
527 if (allocptr
== NULL
)
530 + sizeof (struct areltdata
)
531 + sizeof (struct ar_hdr
));
532 if (bfd_bread (filename
, namelen
, abfd
) != namelen
)
535 if (bfd_get_error () != bfd_error_system_call
)
536 bfd_set_error (bfd_error_no_more_archived_files
);
539 filename
[namelen
] = '\0';
543 /* We judge the end of the name by looking for '/' or ' '.
544 Note: The SYSV format (terminated by '/') allows embedded
545 spaces, so only look for ' ' if we don't find '/'. */
548 e
= (char *) memchr (hdr
.ar_name
, '\0', ar_maxnamelen (abfd
));
551 e
= (char *) memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
));
553 e
= (char *) memchr (hdr
.ar_name
, ' ', ar_maxnamelen (abfd
));
557 namelen
= e
- hdr
.ar_name
;
560 /* If we didn't find a termination character, then the name
561 must be the entire field. */
562 namelen
= ar_maxnamelen (abfd
);
565 allocsize
+= namelen
+ 1;
570 allocptr
= (char *) bfd_zmalloc (allocsize
);
571 if (allocptr
== NULL
)
575 ared
= (struct areltdata
*) allocptr
;
577 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
578 memcpy (ared
->arch_header
, &hdr
, sizeof (struct ar_hdr
));
579 ared
->parsed_size
= parsed_size
;
580 ared
->extra_size
= extra_size
;
581 ared
->origin
= origin
;
583 if (filename
!= NULL
)
584 ared
->filename
= filename
;
587 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
588 sizeof (struct ar_hdr
));
590 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
591 ared
->filename
[namelen
] = '\0';
597 /* Append the relative pathname for a member of the thin archive
598 to the pathname of the directory containing the archive. */
601 _bfd_append_relative_path (bfd
*arch
, char *elt_name
)
603 const char *arch_name
= arch
->filename
;
604 const char *base_name
= lbasename (arch_name
);
608 if (base_name
== arch_name
)
611 prefix_len
= base_name
- arch_name
;
612 filename
= (char *) bfd_alloc (arch
, prefix_len
+ strlen (elt_name
) + 1);
613 if (filename
== NULL
)
616 strncpy (filename
, arch_name
, prefix_len
);
617 strcpy (filename
+ prefix_len
, elt_name
);
621 /* This is an internal function; it's mainly used when indexing
622 through the archive symbol table, but also used to get the next
623 element, since it handles the bookkeeping so nicely for us. */
626 _bfd_get_elt_at_filepos (bfd
*archive
, file_ptr filepos
)
628 struct areltdata
*new_areldata
;
632 n_nfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
636 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
639 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
642 filename
= new_areldata
->filename
;
644 if (bfd_is_thin_archive (archive
))
648 /* This is a proxy entry for an external file. */
649 if (! IS_ABSOLUTE_PATH (filename
))
651 filename
= _bfd_append_relative_path (archive
, filename
);
652 if (filename
== NULL
)
659 if (new_areldata
->origin
> 0)
661 /* This proxy entry refers to an element of a nested archive.
662 Locate the member of that archive and return a bfd for it. */
663 bfd
*ext_arch
= _bfd_find_nested_archive (archive
, filename
);
666 || ! bfd_check_format (ext_arch
, bfd_archive
))
671 n_nfd
= _bfd_get_elt_at_filepos (ext_arch
, new_areldata
->origin
);
677 n_nfd
->proxy_origin
= bfd_tell (archive
);
680 /* It's not an element of a nested archive;
681 open the external file as a bfd. */
683 if (!archive
->target_defaulted
)
684 target
= archive
->xvec
->name
;
685 n_nfd
= bfd_openr (filename
, target
);
687 bfd_set_error (bfd_error_malformed_archive
);
691 n_nfd
= _bfd_create_empty_archive_element_shell (archive
);
700 n_nfd
->proxy_origin
= bfd_tell (archive
);
702 if (bfd_is_thin_archive (archive
))
708 n_nfd
->origin
= n_nfd
->proxy_origin
;
709 n_nfd
->filename
= xstrdup (filename
);
712 n_nfd
->arelt_data
= new_areldata
;
714 /* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
715 n_nfd
->flags
|= archive
->flags
& (BFD_COMPRESS
| BFD_DECOMPRESS
);
717 if (_bfd_add_bfd_to_archive_cache (archive
, filepos
, n_nfd
))
721 n_nfd
->arelt_data
= NULL
;
725 /* Return the BFD which is referenced by the symbol in ABFD indexed by
726 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
729 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
733 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
734 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
739 bfd_openr_next_archived_file
742 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
745 Provided a BFD, @var{archive}, containing an archive and NULL, open
746 an input BFD on the first contained element and returns that.
747 Subsequent calls should pass
748 the archive and the previous return value to return a created
749 BFD to the next contained element. NULL is returned when there
754 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
756 if ((bfd_get_format (archive
) != bfd_archive
)
757 || (archive
->direction
== write_direction
))
759 bfd_set_error (bfd_error_invalid_operation
);
763 return BFD_SEND (archive
,
764 openr_next_archived_file
, (archive
, last_file
));
768 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
773 filestart
= bfd_ardata (archive
)->first_file_filepos
;
776 bfd_size_type size
= arelt_size (last_file
);
778 filestart
= last_file
->proxy_origin
;
779 if (! bfd_is_thin_archive (archive
))
781 /* Pad to an even boundary...
782 Note that last_file->origin can be odd in the case of
783 BSD-4.4-style element with a long odd size. */
784 filestart
+= filestart
% 2;
787 return _bfd_get_elt_at_filepos (archive
, filestart
);
791 bfd_generic_archive_p (bfd
*abfd
)
793 struct artdata
*tdata_hold
;
794 char armag
[SARMAG
+ 1];
797 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
799 if (bfd_get_error () != bfd_error_system_call
)
800 bfd_set_error (bfd_error_wrong_format
);
804 bfd_is_thin_archive (abfd
) = (strncmp (armag
, ARMAGT
, SARMAG
) == 0);
806 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
807 && strncmp (armag
, ARMAGB
, SARMAG
) != 0
808 && ! bfd_is_thin_archive (abfd
))
811 tdata_hold
= bfd_ardata (abfd
);
813 amt
= sizeof (struct artdata
);
814 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
815 if (bfd_ardata (abfd
) == NULL
)
817 bfd_ardata (abfd
) = tdata_hold
;
821 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
822 /* Cleared by bfd_zalloc above.
823 bfd_ardata (abfd)->cache = NULL;
824 bfd_ardata (abfd)->archive_head = NULL;
825 bfd_ardata (abfd)->symdefs = NULL;
826 bfd_ardata (abfd)->extended_names = NULL;
827 bfd_ardata (abfd)->extended_names_size = 0;
828 bfd_ardata (abfd)->tdata = NULL; */
830 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
831 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
833 if (bfd_get_error () != bfd_error_system_call
)
834 bfd_set_error (bfd_error_wrong_format
);
835 bfd_release (abfd
, bfd_ardata (abfd
));
836 bfd_ardata (abfd
) = tdata_hold
;
840 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
844 /* This archive has a map, so we may presume that the contents
845 are object files. Make sure that if the first file in the
846 archive can be recognized as an object file, it is for this
847 target. If not, assume that this is the wrong format. If
848 the first file is not an object file, somebody is doing
849 something weird, and we permit it so that ar -t will work.
851 This is done because any normal format will recognize any
852 normal archive, regardless of the format of the object files.
853 We do accept an empty archive. */
855 first
= bfd_openr_next_archived_file (abfd
, NULL
);
858 first
->target_defaulted
= FALSE
;
859 if (bfd_check_format (first
, bfd_object
)
860 && first
->xvec
!= abfd
->xvec
)
861 bfd_set_error (bfd_error_wrong_object_format
);
862 /* And we ought to close `first' here too. */
869 /* Some constants for a 32 bit BSD archive structure. We do not
870 support 64 bit archives presently; so far as I know, none actually
871 exist. Supporting them would require changing these constants, and
872 changing some H_GET_32 to H_GET_64. */
874 /* The size of an external symdef structure. */
875 #define BSD_SYMDEF_SIZE 8
877 /* The offset from the start of a symdef structure to the file offset. */
878 #define BSD_SYMDEF_OFFSET_SIZE 4
880 /* The size of the symdef count. */
881 #define BSD_SYMDEF_COUNT_SIZE 4
883 /* The size of the string count. */
884 #define BSD_STRING_COUNT_SIZE 4
886 /* Read a BSD-style archive symbol table. Returns FALSE on error,
890 do_slurp_bsd_armap (bfd
*abfd
)
892 struct areltdata
*mapdata
;
893 unsigned int counter
;
894 bfd_byte
*raw_armap
, *rbase
;
895 struct artdata
*ardata
= bfd_ardata (abfd
);
897 bfd_size_type parsed_size
, amt
;
900 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
903 parsed_size
= mapdata
->parsed_size
;
906 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
907 if (raw_armap
== NULL
)
910 if (bfd_bread (raw_armap
, parsed_size
, abfd
) != parsed_size
)
912 if (bfd_get_error () != bfd_error_system_call
)
913 bfd_set_error (bfd_error_malformed_archive
);
915 bfd_release (abfd
, raw_armap
);
919 ardata
->symdef_count
= H_GET_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
921 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
922 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
924 /* Probably we're using the wrong byte ordering. */
925 bfd_set_error (bfd_error_wrong_format
);
930 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
931 stringbase
= ((char *) rbase
932 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
933 + BSD_STRING_COUNT_SIZE
);
934 amt
= ardata
->symdef_count
* sizeof (carsym
);
935 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
936 if (!ardata
->symdefs
)
939 for (counter
= 0, set
= ardata
->symdefs
;
940 counter
< ardata
->symdef_count
;
941 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
943 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
944 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
947 ardata
->first_file_filepos
= bfd_tell (abfd
);
948 /* Pad to an even boundary if you have to. */
949 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
950 /* FIXME, we should provide some way to free raw_ardata when
951 we are done using the strings from it. For now, it seems
952 to be allocated on an objalloc anyway... */
953 bfd_has_map (abfd
) = TRUE
;
957 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
961 do_slurp_coff_armap (bfd
*abfd
)
963 struct areltdata
*mapdata
;
964 int *raw_armap
, *rawptr
;
965 struct artdata
*ardata
= bfd_ardata (abfd
);
967 bfd_size_type stringsize
;
968 bfd_size_type parsed_size
;
970 bfd_size_type nsymz
; /* Number of symbols in armap. */
971 bfd_vma (*swap
) (const void *);
972 char int_buf
[sizeof (long)];
973 bfd_size_type carsym_size
, ptrsize
;
976 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
979 parsed_size
= mapdata
->parsed_size
;
982 if (bfd_bread (int_buf
, 4, abfd
) != 4)
984 if (bfd_get_error () != bfd_error_system_call
)
985 bfd_set_error (bfd_error_malformed_archive
);
988 /* It seems that all numeric information in a coff archive is always
989 in big endian format, nomatter the host or target. */
991 nsymz
= bfd_getb32 (int_buf
);
992 stringsize
= parsed_size
- (4 * nsymz
) - 4;
994 /* ... except that some archive formats are broken, and it may be our
995 fault - the i960 little endian coff sometimes has big and sometimes
996 little, because our tools changed. Here's a horrible hack to clean
999 if (stringsize
> 0xfffff
1000 && bfd_get_arch (abfd
) == bfd_arch_i960
1001 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
)
1003 /* This looks dangerous, let's do it the other way around. */
1004 nsymz
= bfd_getl32 (int_buf
);
1005 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1009 /* The coff armap must be read sequentially. So we construct a
1010 bsd-style one in core all at once, for simplicity. */
1012 if (nsymz
> ~ (bfd_size_type
) 0 / sizeof (carsym
))
1015 carsym_size
= (nsymz
* sizeof (carsym
));
1016 ptrsize
= (4 * nsymz
);
1018 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1021 ardata
->symdefs
= (struct carsym
*) bfd_zalloc (abfd
,
1022 carsym_size
+ stringsize
+ 1);
1023 if (ardata
->symdefs
== NULL
)
1025 carsyms
= ardata
->symdefs
;
1026 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1028 /* Allocate and read in the raw offsets. */
1029 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
1030 if (raw_armap
== NULL
)
1031 goto release_symdefs
;
1032 if (bfd_bread (raw_armap
, ptrsize
, abfd
) != ptrsize
1033 || (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
))
1035 if (bfd_get_error () != bfd_error_system_call
)
1036 bfd_set_error (bfd_error_malformed_archive
);
1037 goto release_raw_armap
;
1040 /* OK, build the carsyms. */
1041 for (i
= 0; i
< nsymz
; i
++)
1043 rawptr
= raw_armap
+ i
;
1044 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1045 carsyms
->name
= stringbase
;
1046 stringbase
+= strlen (stringbase
) + 1;
1051 ardata
->symdef_count
= nsymz
;
1052 ardata
->first_file_filepos
= bfd_tell (abfd
);
1053 /* Pad to an even boundary if you have to. */
1054 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1056 bfd_has_map (abfd
) = TRUE
;
1057 bfd_release (abfd
, raw_armap
);
1059 /* Check for a second archive header (as used by PE). */
1061 struct areltdata
*tmp
;
1063 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
1064 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1067 if (tmp
->arch_header
[0] == '/'
1068 && tmp
->arch_header
[1] == ' ')
1070 ardata
->first_file_filepos
+=
1071 (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1080 bfd_release (abfd
, raw_armap
);
1082 bfd_release (abfd
, (ardata
)->symdefs
);
1086 /* This routine can handle either coff-style or bsd-style armaps
1087 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1090 bfd_slurp_armap (bfd
*abfd
)
1093 int i
= bfd_bread (nextname
, 16, abfd
);
1100 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1103 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1104 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1105 return do_slurp_bsd_armap (abfd
);
1106 else if (CONST_STRNEQ (nextname
, "/ "))
1107 return do_slurp_coff_armap (abfd
);
1108 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1110 /* 64bit ELF (Irix 6) archive. */
1112 extern bfd_boolean
bfd_elf64_archive_slurp_armap (bfd
*);
1113 return bfd_elf64_archive_slurp_armap (abfd
);
1115 bfd_set_error (bfd_error_wrong_format
);
1119 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1121 /* Mach-O has a special name for armap when the map is sorted by name.
1122 However because this name has a space it is slightly more difficult
1127 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1129 /* Read the extended name. We know its length. */
1130 if (bfd_bread (extname
, 20, abfd
) != 20)
1132 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1134 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1135 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1136 return do_slurp_bsd_armap (abfd
);
1139 bfd_has_map (abfd
) = FALSE
;
1143 /* Returns FALSE on error, TRUE otherwise. */
1144 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1145 header is in a slightly different order and the map name is '/'.
1146 This flavour is used by hp300hpux. */
1148 #define HPUX_SYMDEF_COUNT_SIZE 2
1151 bfd_slurp_bsd_armap_f2 (bfd
*abfd
)
1153 struct areltdata
*mapdata
;
1155 unsigned int counter
;
1156 bfd_byte
*raw_armap
, *rbase
;
1157 struct artdata
*ardata
= bfd_ardata (abfd
);
1159 unsigned int stringsize
;
1163 int i
= bfd_bread (nextname
, 16, abfd
);
1170 /* The archive has at least 16 bytes in it. */
1171 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1174 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1175 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1176 return do_slurp_bsd_armap (abfd
);
1178 if (! CONST_STRNEQ (nextname
, "/ "))
1180 bfd_has_map (abfd
) = FALSE
;
1184 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1185 if (mapdata
== NULL
)
1188 if (mapdata
->parsed_size
< HPUX_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
1192 bfd_set_error (bfd_error_wrong_format
);
1196 left
= mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
- BSD_STRING_COUNT_SIZE
;
1198 amt
= mapdata
->parsed_size
;
1201 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, amt
);
1202 if (raw_armap
== NULL
)
1205 if (bfd_bread (raw_armap
, amt
, abfd
) != amt
)
1207 if (bfd_get_error () != bfd_error_system_call
)
1208 bfd_set_error (bfd_error_malformed_archive
);
1212 ardata
->symdef_count
= H_GET_16 (abfd
, raw_armap
);
1216 stringsize
= H_GET_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1217 if (stringsize
> left
)
1221 /* Skip sym count and string sz. */
1222 stringbase
= ((char *) raw_armap
1223 + HPUX_SYMDEF_COUNT_SIZE
1224 + BSD_STRING_COUNT_SIZE
);
1225 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1226 amt
= ardata
->symdef_count
* BSD_SYMDEF_SIZE
;
1230 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1231 if (!ardata
->symdefs
)
1234 for (counter
= 0, set
= ardata
->symdefs
;
1235 counter
< ardata
->symdef_count
;
1236 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1238 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
1239 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1242 ardata
->first_file_filepos
= bfd_tell (abfd
);
1243 /* Pad to an even boundary if you have to. */
1244 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1245 /* FIXME, we should provide some way to free raw_ardata when
1246 we are done using the strings from it. For now, it seems
1247 to be allocated on an objalloc anyway... */
1248 bfd_has_map (abfd
) = TRUE
;
1252 /** Extended name table.
1254 Normally archives support only 14-character filenames.
1256 Intel has extended the format: longer names are stored in a special
1257 element (the first in the archive, or second if there is an armap);
1258 the name in the ar_hdr is replaced by <space><index into filename
1259 element>. Index is the P.R. of an int (decimal). Data General have
1260 extended the format by using the prefix // for the special element. */
1262 /* Returns FALSE on error, TRUE otherwise. */
1265 _bfd_slurp_extended_name_table (bfd
*abfd
)
1268 struct areltdata
*namedata
;
1271 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1272 we probably don't want to return TRUE. */
1273 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1276 if (bfd_bread (nextname
, 16, abfd
) == 16)
1278 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1281 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1282 && ! CONST_STRNEQ (nextname
, "// "))
1284 bfd_ardata (abfd
)->extended_names
= NULL
;
1285 bfd_ardata (abfd
)->extended_names_size
= 0;
1289 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1290 if (namedata
== NULL
)
1293 amt
= namedata
->parsed_size
;
1297 bfd_ardata (abfd
)->extended_names_size
= amt
;
1298 bfd_ardata (abfd
)->extended_names
= (char *) bfd_zalloc (abfd
, amt
+ 1);
1299 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1303 bfd_ardata (abfd
)->extended_names
= NULL
;
1304 bfd_ardata (abfd
)->extended_names_size
= 0;
1308 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1310 if (bfd_get_error () != bfd_error_system_call
)
1311 bfd_set_error (bfd_error_malformed_archive
);
1312 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1316 /* Since the archive is supposed to be printable if it contains
1317 text, the entries in the list are newline-padded, not null
1318 padded. In SVR4-style archives, the names also have a
1319 trailing '/'. DOS/NT created archive often have \ in them
1320 We'll fix all problems here. */
1322 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1323 char *temp
= ext_names
;
1324 char *limit
= temp
+ namedata
->parsed_size
;
1326 for (; temp
< limit
; ++temp
)
1328 if (*temp
== ARFMAG
[1])
1329 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1336 /* Pad to an even boundary if you have to. */
1337 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1338 bfd_ardata (abfd
)->first_file_filepos
+=
1339 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1348 /* Return a copy of the stuff in the filename between any :]> and a
1352 normalize (bfd
*abfd
, const char *file
)
1358 first
= file
+ strlen (file
) - 1;
1361 while (first
!= file
)
1365 if (*first
== ':' || *first
== ']' || *first
== '>')
1373 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1377 memcpy (copy
, first
, last
- first
);
1378 copy
[last
- first
] = 0;
1385 normalize (bfd
*abfd ATTRIBUTE_UNUSED
, const char *file
)
1387 return lbasename (file
);
1391 /* Adjust a relative path name based on the reference path.
1394 Relative path Reference path Result
1395 ------------- -------------- ------
1397 foo/bar.o lib.a foo/bar.o
1398 bar.o foo/lib.a ../bar.o
1399 foo/bar.o baz/lib.a ../foo/bar.o
1400 bar.o ../lib.a <parent of current dir>/bar.o
1401 ; ../bar.o ../lib.a bar.o
1402 ; ../bar.o lib.a ../bar.o
1403 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1404 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1405 bar.o foo/baz/lib.a ../../bar.o
1407 Note - the semicolons above are there to prevent the BFD chew
1408 utility from interpreting those lines as prototypes to put into
1409 the autogenerated bfd.h header...
1411 Note - the string is returned in a static buffer. */
1414 adjust_relative_path (const char * path
, const char * ref_path
)
1416 static char *pathbuf
= NULL
;
1417 static unsigned int pathbuf_len
= 0;
1423 unsigned int dir_up
= 0;
1424 unsigned int dir_down
= 0;
1426 char * pwd
= getpwd ();
1429 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1430 lpath
= lrealpath (path
);
1431 pathp
= lpath
== NULL
? path
: lpath
;
1433 rpath
= lrealpath (ref_path
);
1434 refp
= rpath
== NULL
? ref_path
: rpath
;
1436 /* Remove common leading path elements. */
1439 const char *e1
= pathp
;
1440 const char *e2
= refp
;
1442 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1444 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1446 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1447 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1453 len
= strlen (pathp
) + 1;
1454 /* For each leading path element in the reference path,
1455 insert "../" into the path. */
1456 for (; *refp
; ++refp
)
1457 if (IS_DIR_SEPARATOR (*refp
))
1459 /* PR 12710: If the path element is "../" then instead of
1460 inserting "../" we need to insert the name of the directory
1461 at the current level. */
1462 if (refp
> ref_path
+ 1
1470 /* If the lrealpath calls above succeeded then we should never
1471 see dir_up and dir_down both being non-zero. */
1477 down
= pwd
+ strlen (pwd
) - 1;
1479 while (dir_down
&& down
> pwd
)
1481 if (IS_DIR_SEPARATOR (*down
))
1484 BFD_ASSERT (dir_down
== 0);
1485 len
+= strlen (down
) + 1;
1490 if (len
> pathbuf_len
)
1492 if (pathbuf
!= NULL
)
1495 pathbuf
= (char *) bfd_malloc (len
);
1496 if (pathbuf
== NULL
)
1502 while (dir_up
-- > 0)
1504 /* FIXME: Support Windows style path separators as well. */
1505 strcpy (newp
, "../");
1510 sprintf (newp
, "%s/%s", down
, pathp
);
1512 strcpy (newp
, pathp
);
1520 /* Build a BFD style extended name table. */
1523 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1525 bfd_size_type
*tablen
,
1528 *name
= "ARFILENAMES/";
1529 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1532 /* Build an SVR4 style extended name table. */
1535 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1537 bfd_size_type
*tablen
,
1541 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1544 /* Follows archive_head and produces an extended name table if
1545 necessary. Returns (in tabloc) a pointer to an extended name
1546 table, and in tablen the length of the table. If it makes an entry
1547 it clobbers the filename so that the element may be written without
1548 further massage. Returns TRUE if it ran successfully, FALSE if
1549 something went wrong. A successful return may still involve a
1550 zero-length tablen! */
1553 _bfd_construct_extended_name_table (bfd
*abfd
,
1554 bfd_boolean trailing_slash
,
1556 bfd_size_type
*tablen
)
1558 unsigned int maxname
= ar_maxnamelen (abfd
);
1559 bfd_size_type total_namelen
= 0;
1562 const char *last_filename
;
1566 last_filename
= NULL
;
1568 /* Figure out how long the table should be. */
1569 for (current
= abfd
->archive_head
;
1571 current
= current
->archive_next
)
1574 unsigned int thislen
;
1576 if (bfd_is_thin_archive (abfd
))
1578 const char *filename
= current
->filename
;
1580 /* If the element being added is a member of another archive
1581 (i.e., we are flattening), use the containing archive's name. */
1582 if (current
->my_archive
1583 && ! bfd_is_thin_archive (current
->my_archive
))
1584 filename
= current
->my_archive
->filename
;
1586 /* If the path is the same as the previous path seen,
1587 reuse it. This can happen when flattening a thin
1588 archive that contains other archives. */
1589 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1592 last_filename
= filename
;
1594 /* If the path is relative, adjust it relative to
1595 the containing archive. */
1596 if (! IS_ABSOLUTE_PATH (filename
)
1597 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1598 normal
= adjust_relative_path (filename
, abfd
->filename
);
1602 /* In a thin archive, always store the full pathname
1603 in the extended name table. */
1604 total_namelen
+= strlen (normal
) + 1;
1606 /* Leave room for trailing slash. */
1612 normal
= normalize (current
, current
->filename
);
1616 thislen
= strlen (normal
);
1618 if (thislen
> maxname
1619 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1622 if (thislen
> maxname
)
1624 /* Add one to leave room for \n. */
1625 total_namelen
+= thislen
+ 1;
1628 /* Leave room for trailing slash. */
1634 struct ar_hdr
*hdr
= arch_hdr (current
);
1635 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1636 || (thislen
< sizeof hdr
->ar_name
1637 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1639 /* Must have been using extended format even though it
1640 didn't need to. Fix it to use normal format. */
1641 memcpy (hdr
->ar_name
, normal
, thislen
);
1642 if (thislen
< maxname
1643 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1644 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1649 if (total_namelen
== 0)
1652 *tabloc
= (char *) bfd_zalloc (abfd
, total_namelen
);
1653 if (*tabloc
== NULL
)
1656 *tablen
= total_namelen
;
1659 last_filename
= NULL
;
1662 for (current
= abfd
->archive_head
;
1664 current
= current
->archive_next
)
1667 unsigned int thislen
;
1669 const char *filename
= current
->filename
;
1671 if (bfd_is_thin_archive (abfd
))
1673 /* If the element being added is a member of another archive
1674 (i.e., we are flattening), use the containing archive's name. */
1675 if (current
->my_archive
1676 && ! bfd_is_thin_archive (current
->my_archive
))
1677 filename
= current
->my_archive
->filename
;
1678 /* If the path is the same as the previous path seen,
1679 reuse it. This can happen when flattening a thin
1680 archive that contains other archives.
1681 If the path is relative, adjust it relative to
1682 the containing archive. */
1683 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1684 normal
= last_filename
;
1685 else if (! IS_ABSOLUTE_PATH (filename
)
1686 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1687 normal
= adjust_relative_path (filename
, abfd
->filename
);
1693 normal
= normalize (current
, filename
);
1698 thislen
= strlen (normal
);
1699 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1701 /* Works for now; may need to be re-engineered if we
1702 encounter an oddball archive format and want to
1703 generalise this hack. */
1704 struct ar_hdr
*hdr
= arch_hdr (current
);
1705 if (normal
== last_filename
)
1706 stroff
= last_stroff
;
1709 strcpy (strptr
, normal
);
1710 if (! trailing_slash
)
1711 strptr
[thislen
] = ARFMAG
[1];
1714 strptr
[thislen
] = '/';
1715 strptr
[thislen
+ 1] = ARFMAG
[1];
1717 stroff
= strptr
- *tabloc
;
1718 last_stroff
= stroff
;
1720 hdr
->ar_name
[0] = ar_padchar (current
);
1721 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1723 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1725 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1727 current
->origin
- sizeof (struct ar_hdr
));
1730 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1731 if (normal
!= last_filename
)
1733 strptr
+= thislen
+ 1;
1736 last_filename
= filename
;
1744 /* Do not construct an extended name table but transforms name field into
1745 its extended form. */
1748 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1750 bfd_size_type
*tablen
,
1753 unsigned int maxname
= ar_maxnamelen (abfd
);
1760 for (current
= abfd
->archive_head
;
1762 current
= current
->archive_next
)
1764 const char *normal
= normalize (current
, current
->filename
);
1771 for (len
= 0; normal
[len
]; len
++)
1772 if (normal
[len
] == ' ')
1775 if (len
> maxname
|| has_space
)
1777 struct ar_hdr
*hdr
= arch_hdr (current
);
1779 len
= (len
+ 3) & ~3;
1780 arch_eltdata (current
)->extra_size
= len
;
1781 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1788 /* Write an archive header. */
1791 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1793 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1795 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1800 /* Write an archive header using BSD4.4 convention. */
1803 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1805 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1807 if (is_bsd44_extended_name (hdr
->ar_name
))
1809 /* This is a BSD 4.4 extended name. */
1810 const char *fullname
= normalize (abfd
, abfd
->filename
);
1811 unsigned int len
= strlen (fullname
);
1812 unsigned int padded_len
= (len
+ 3) & ~3;
1814 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1816 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1817 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1820 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1823 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1828 static const char pad
[3] = { 0, 0, 0 };
1830 len
= 4 - (len
& 3);
1831 if (bfd_bwrite (pad
, len
, archive
) != len
)
1837 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1843 /* A couple of functions for creating ar_hdrs. */
1845 #ifdef HPUX_LARGE_AR_IDS
1846 /* Function to encode large UID/GID values according to HP. */
1849 hpux_uid_gid_encode (char str
[6], long int id
)
1853 str
[5] = '@' + (id
& 3);
1856 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1857 str
[cnt
] = ' ' + (id
& 0x3f);
1859 #endif /* HPUX_LARGE_AR_IDS */
1869 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1870 make one. The filename must refer to a filename in the filesystem.
1871 The filename field of the ar_hdr will NOT be initialized. If member
1872 is set, and it's an in-memory bfd, we fake it. */
1874 static struct areltdata
*
1875 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1878 struct areltdata
*ared
;
1882 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1884 /* Assume we just "made" the member, and fake it. */
1885 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1886 time (&status
.st_mtime
);
1887 status
.st_uid
= getuid ();
1888 status
.st_gid
= getgid ();
1889 status
.st_mode
= 0644;
1890 status
.st_size
= bim
->size
;
1892 else if (stat (filename
, &status
) != 0)
1894 bfd_set_error (bfd_error_system_call
);
1898 /* If the caller requested that the BFD generate deterministic output,
1899 fake values for modification time, UID, GID, and file mode. */
1900 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1902 status
.st_mtime
= 0;
1905 status
.st_mode
= 0644;
1908 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1909 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1912 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1914 /* ar headers are space padded, not null padded! */
1915 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1917 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1919 #ifdef HPUX_LARGE_AR_IDS
1920 /* HP has a very "special" way to handle UID/GID's with numeric values
1922 if (status
.st_uid
> 99999)
1923 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1926 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1928 #ifdef HPUX_LARGE_AR_IDS
1929 /* HP has a very "special" way to handle UID/GID's with numeric values
1931 if (status
.st_gid
> 99999)
1932 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1935 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1937 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1939 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1944 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1945 ared
->parsed_size
= status
.st_size
;
1946 ared
->arch_header
= (char *) hdr
;
1951 /* Analogous to stat call. */
1954 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1959 if (abfd
->arelt_data
== NULL
)
1961 bfd_set_error (bfd_error_invalid_operation
);
1965 hdr
= arch_hdr (abfd
);
1967 #define foo(arelt, stelt, size) \
1968 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1969 if (aloser == hdr->arelt) \
1972 /* Some platforms support special notations for large IDs. */
1973 #ifdef HPUX_LARGE_AR_IDS
1974 # define foo2(arelt, stelt, size) \
1975 if (hdr->arelt[5] == ' ') \
1977 foo (arelt, stelt, size); \
1982 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1984 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1987 buf->stelt += hdr->arelt[cnt] - ' '; \
1989 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1992 buf->stelt += hdr->arelt[5] - '@'; \
1995 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1998 foo (ar_date
, st_mtime
, 10);
1999 foo2 (ar_uid
, st_uid
, 10);
2000 foo2 (ar_gid
, st_gid
, 10);
2001 foo (ar_mode
, st_mode
, 8);
2003 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
2009 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2011 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2012 Fortunately ic960 users will never use that option. Fixing this
2013 is very hard; fortunately I know how to do it and will do so once
2014 intel's release is out the door. */
2016 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2018 const char *filename
;
2019 size_t maxlen
= ar_maxnamelen (abfd
);
2021 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2023 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2027 filename
= normalize (abfd
, pathname
);
2028 if (filename
== NULL
)
2034 length
= strlen (filename
);
2036 if (length
<= maxlen
)
2037 memcpy (hdr
->ar_name
, filename
, length
);
2039 /* Add the padding character if there is room for it. */
2041 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2042 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2046 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2048 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2050 const char *filename
= lbasename (pathname
);
2051 size_t maxlen
= ar_maxnamelen (abfd
);
2053 length
= strlen (filename
);
2055 if (length
<= maxlen
)
2056 memcpy (hdr
->ar_name
, filename
, length
);
2059 /* pathname: meet procrustes */
2060 memcpy (hdr
->ar_name
, filename
, maxlen
);
2064 if (length
< maxlen
)
2065 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2068 /* Store name into ar header. Truncates the name to fit.
2069 1> strip pathname to be just the basename.
2070 2> if it's short enuf to fit, stuff it in.
2071 3> If it doesn't end with .o, truncate it to fit
2072 4> truncate it before the .o, append .o, stuff THAT in. */
2074 /* This is what gnu ar does. It's better but incompatible with the
2078 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2080 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2082 const char *filename
= lbasename (pathname
);
2083 size_t maxlen
= ar_maxnamelen (abfd
);
2085 length
= strlen (filename
);
2087 if (length
<= maxlen
)
2088 memcpy (hdr
->ar_name
, filename
, length
);
2091 /* pathname: meet procrustes. */
2092 memcpy (hdr
->ar_name
, filename
, maxlen
);
2093 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2095 hdr
->ar_name
[maxlen
- 2] = '.';
2096 hdr
->ar_name
[maxlen
- 1] = 'o';
2102 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2105 /* The BFD is open for write and has its format set to bfd_archive. */
2108 _bfd_write_archive_contents (bfd
*arch
)
2111 char *etable
= NULL
;
2112 bfd_size_type elength
= 0;
2113 const char *ename
= NULL
;
2114 bfd_boolean makemap
= bfd_has_map (arch
);
2115 /* If no .o's, don't bother to make a map. */
2116 bfd_boolean hasobjects
= FALSE
;
2117 bfd_size_type wrote
;
2121 /* Verify the viability of all entries; if any of them live in the
2122 filesystem (as opposed to living in an archive open for input)
2123 then construct a fresh ar_hdr for them. */
2124 for (current
= arch
->archive_head
;
2126 current
= current
->archive_next
)
2128 /* This check is checking the bfds for the objects we're reading
2129 from (which are usually either an object file or archive on
2130 disk), not the archive entries we're writing to. We don't
2131 actually create bfds for the archive members, we just copy
2132 them byte-wise when we write out the archive. */
2133 if (bfd_write_p (current
))
2135 bfd_set_error (bfd_error_invalid_operation
);
2138 if (!current
->arelt_data
)
2140 current
->arelt_data
=
2141 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2142 if (!current
->arelt_data
)
2145 /* Put in the file name. */
2146 BFD_SEND (arch
, _bfd_truncate_arname
,
2147 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2150 if (makemap
&& ! hasobjects
)
2151 { /* Don't bother if we won't make a map! */
2152 if ((bfd_check_format (current
, bfd_object
)))
2157 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2158 (arch
, &etable
, &elength
, &ename
)))
2161 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2164 if (bfd_is_thin_archive (arch
))
2166 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2167 if (wrote
!= SARMAG
)
2170 if (makemap
&& hasobjects
)
2172 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2180 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2181 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2182 /* Round size up to even number in archive header. */
2183 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2184 (elength
+ 1) & ~(bfd_size_type
) 1))
2186 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2187 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2188 != sizeof (struct ar_hdr
))
2189 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2191 if ((elength
% 2) == 1)
2193 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2198 for (current
= arch
->archive_head
;
2200 current
= current
->archive_next
)
2202 char buffer
[DEFAULT_BUFFERSIZE
];
2203 bfd_size_type remaining
= arelt_size (current
);
2205 /* Write ar header. */
2206 if (!_bfd_write_ar_hdr (arch
, current
))
2208 if (bfd_is_thin_archive (arch
))
2210 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2215 unsigned int amt
= DEFAULT_BUFFERSIZE
;
2217 if (amt
> remaining
)
2220 if (bfd_bread (buffer
, amt
, current
) != amt
)
2222 if (bfd_get_error () != bfd_error_system_call
)
2223 bfd_set_error (bfd_error_file_truncated
);
2226 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2231 if ((arelt_size (current
) % 2) == 1)
2233 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2238 if (makemap
&& hasobjects
)
2240 /* Verify the timestamp in the archive file. If it would not be
2241 accepted by the linker, rewrite it until it would be. If
2242 anything odd happens, break out and just return. (The
2243 Berkeley linker checks the timestamp and refuses to read the
2244 table-of-contents if it is >60 seconds less than the file's
2245 modified-time. That painful hack requires this painful hack. */
2249 if (bfd_update_armap_timestamp (arch
))
2251 (*_bfd_error_handler
)
2252 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2254 while (++tries
< 6);
2260 bfd_set_error (bfd_error_on_input
, current
, bfd_get_error ());
2264 /* Note that the namidx for the first symbol is 0. */
2267 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2269 char *first_name
= NULL
;
2271 file_ptr elt_no
= 0;
2272 struct orl
*map
= NULL
;
2273 unsigned int orl_max
= 1024; /* Fine initial default. */
2274 unsigned int orl_count
= 0;
2276 asymbol
**syms
= NULL
;
2281 /* Dunno if this is the best place for this info... */
2283 elength
+= sizeof (struct ar_hdr
);
2284 elength
+= elength
% 2;
2286 amt
= orl_max
* sizeof (struct orl
);
2287 map
= (struct orl
*) bfd_malloc (amt
);
2291 /* We put the symbol names on the arch objalloc, and then discard
2293 first_name
= (char *) bfd_alloc (arch
, 1);
2294 if (first_name
== NULL
)
2297 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2298 while (arch
->archive_head
2299 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2300 arch
->archive_head
= arch
->archive_head
->archive_next
;
2302 /* Map over each element. */
2303 for (current
= arch
->archive_head
;
2305 current
= current
->archive_next
, elt_no
++)
2307 if (bfd_check_format (current
, bfd_object
)
2308 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2314 storage
= bfd_get_symtab_upper_bound (current
);
2320 if (storage
> syms_max
)
2325 syms
= (asymbol
**) bfd_malloc (syms_max
);
2329 symcount
= bfd_canonicalize_symtab (current
, syms
);
2333 /* Now map over all the symbols, picking out the ones we
2335 for (src_count
= 0; src_count
< symcount
; src_count
++)
2337 flagword flags
= (syms
[src_count
])->flags
;
2338 asection
*sec
= syms
[src_count
]->section
;
2340 if (((flags
& (BSF_GLOBAL
2343 | BSF_GNU_UNIQUE
)) != 0
2344 || bfd_is_com_section (sec
))
2345 && ! bfd_is_und_section (sec
))
2347 bfd_size_type namelen
;
2348 struct orl
*new_map
;
2350 /* This symbol will go into the archive header. */
2351 if (orl_count
== orl_max
)
2354 amt
= orl_max
* sizeof (struct orl
);
2355 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2356 if (new_map
== NULL
)
2362 if (strcmp (syms
[src_count
]->name
, "__gnu_lto_slim") == 0)
2363 (*_bfd_error_handler
)
2364 (_("%s: plugin needed to handle lto object"),
2365 bfd_get_filename (current
));
2366 namelen
= strlen (syms
[src_count
]->name
);
2367 amt
= sizeof (char *);
2368 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2369 if (map
[orl_count
].name
== NULL
)
2371 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2373 if (*(map
[orl_count
].name
) == NULL
)
2375 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2376 map
[orl_count
].u
.abfd
= current
;
2377 map
[orl_count
].namidx
= stridx
;
2379 stridx
+= namelen
+ 1;
2385 /* Now ask the BFD to free up any cached information, so we
2386 don't fill all of memory with symbol tables. */
2387 if (! bfd_free_cached_info (current
))
2392 /* OK, now we have collected all the data, let's write them out. */
2393 ret
= BFD_SEND (arch
, write_armap
,
2394 (arch
, elength
, map
, orl_count
, stridx
));
2400 if (first_name
!= NULL
)
2401 bfd_release (arch
, first_name
);
2410 if (first_name
!= NULL
)
2411 bfd_release (arch
, first_name
);
2417 bsd_write_armap (bfd
*arch
,
2418 unsigned int elength
,
2420 unsigned int orl_count
,
2423 int padit
= stridx
& 1;
2424 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2425 unsigned int stringsize
= stridx
+ padit
;
2426 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2427 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2429 bfd
*current
= arch
->archive_head
;
2430 bfd
*last_elt
= current
; /* Last element arch seen. */
2436 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2438 /* If deterministic, we use 0 as the timestamp in the map.
2439 Some linkers may require that the archive filesystem modification
2440 time is less than (or near to) the archive map timestamp. Those
2441 linkers should not be used with deterministic mode. (GNU ld and
2442 Gold do not have this restriction.) */
2443 bfd_ardata (arch
)->armap_timestamp
= 0;
2446 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2448 struct stat statbuf
;
2450 if (stat (arch
->filename
, &statbuf
) == 0)
2451 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2452 + ARMAP_TIME_OFFSET
);
2457 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2458 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2459 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2460 + offsetof (struct ar_hdr
, ar_date
[0]));
2461 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2462 bfd_ardata (arch
)->armap_timestamp
);
2463 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2464 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2465 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2467 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2468 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2469 != sizeof (struct ar_hdr
))
2471 H_PUT_32 (arch
, ranlibsize
, temp
);
2472 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2475 for (count
= 0; count
< orl_count
; count
++)
2477 unsigned int offset
;
2478 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2480 if (map
[count
].u
.abfd
!= last_elt
)
2484 struct areltdata
*ared
= arch_eltdata (current
);
2486 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2487 + sizeof (struct ar_hdr
));
2488 firstreal
+= firstreal
% 2;
2489 current
= current
->archive_next
;
2491 while (current
!= map
[count
].u
.abfd
);
2494 /* The archive file format only has 4 bytes to store the offset
2495 of the member. Check to make sure that firstreal has not grown
2497 offset
= (unsigned int) firstreal
;
2498 if (firstreal
!= (file_ptr
) offset
)
2500 bfd_set_error (bfd_error_file_truncated
);
2505 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2506 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2507 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2512 /* Now write the strings themselves. */
2513 H_PUT_32 (arch
, stringsize
, temp
);
2514 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2516 for (count
= 0; count
< orl_count
; count
++)
2518 size_t len
= strlen (*map
[count
].name
) + 1;
2520 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2524 /* The spec sez this should be a newline. But in order to be
2525 bug-compatible for sun's ar we use a null. */
2528 if (bfd_bwrite ("", 1, arch
) != 1)
2535 /* At the end of archive file handling, update the timestamp in the
2536 file, so the linker will accept it.
2538 Return TRUE if the timestamp was OK, or an unusual problem happened.
2539 Return FALSE if we updated the timestamp. */
2542 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2544 struct stat archstat
;
2547 /* If creating deterministic archives, just leave the timestamp as-is. */
2548 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2551 /* Flush writes, get last-write timestamp from file, and compare it
2552 to the timestamp IN the file. */
2554 if (bfd_stat (arch
, &archstat
) == -1)
2556 bfd_perror (_("Reading archive file mod timestamp"));
2558 /* Can't read mod time for some reason. */
2561 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2562 /* OK by the linker's rules. */
2565 /* Update the timestamp. */
2566 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2568 /* Prepare an ASCII version suitable for writing. */
2569 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2570 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2571 bfd_ardata (arch
)->armap_timestamp
);
2573 /* Write it into the file. */
2574 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2575 + offsetof (struct ar_hdr
, ar_date
[0]));
2576 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2577 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2578 != sizeof (hdr
.ar_date
)))
2580 bfd_perror (_("Writing updated armap timestamp"));
2582 /* Some error while writing. */
2586 /* We updated the timestamp successfully. */
2590 /* A coff armap looks like :
2592 struct ar_hdr with name = '/'
2594 offset of file for symbol 0
2595 offset of file for symbol 1
2597 offset of file for symbol n-1
2604 coff_write_armap (bfd
*arch
,
2605 unsigned int elength
,
2607 unsigned int symbol_count
,
2610 /* The size of the ranlib is the number of exported symbols in the
2611 archive * the number of bytes in an int, + an int for the count. */
2612 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2613 unsigned int stringsize
= stridx
;
2614 unsigned int mapsize
= stringsize
+ ranlibsize
;
2615 file_ptr archive_member_file_ptr
;
2616 bfd
*current
= arch
->archive_head
;
2619 int padit
= mapsize
& 1;
2624 /* Work out where the first object file will go in the archive. */
2625 archive_member_file_ptr
= (mapsize
2627 + sizeof (struct ar_hdr
)
2630 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2631 hdr
.ar_name
[0] = '/';
2632 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2634 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2635 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2636 ? time (NULL
) : 0));
2637 /* This, at least, is what Intel coff sets the values to. */
2638 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2639 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2640 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2641 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2643 /* Write the ar header for this item and the number of symbols. */
2644 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2645 != sizeof (struct ar_hdr
))
2648 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2651 /* Two passes, first write the file offsets for each symbol -
2652 remembering that each offset is on a two byte boundary. */
2654 /* Write out the file offset for the file associated with each
2655 symbol, and remember to keep the offsets padded out. */
2657 current
= arch
->archive_head
;
2659 while (current
!= NULL
&& count
< symbol_count
)
2661 /* For each symbol which is used defined in this object, write
2662 out the object file's address in the archive. */
2664 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2666 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2668 /* Catch an attempt to grow an archive past its 4Gb limit. */
2669 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2671 bfd_set_error (bfd_error_file_truncated
);
2674 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2678 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2679 if (! bfd_is_thin_archive (arch
))
2681 /* Add size of this archive entry. */
2682 archive_member_file_ptr
+= arelt_size (current
);
2683 /* Remember about the even alignment. */
2684 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2686 current
= current
->archive_next
;
2689 /* Now write the strings themselves. */
2690 for (count
= 0; count
< symbol_count
; count
++)
2692 size_t len
= strlen (*map
[count
].name
) + 1;
2694 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2698 /* The spec sez this should be a newline. But in order to be
2699 bug-compatible for arc960 we use a null. */
2702 if (bfd_bwrite ("", 1, arch
) != 1)
2710 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2712 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2714 bfd_close_all_done (ent
->arbfd
);
2719 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2721 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2727 /* Close nested archives (if this bfd is a thin archive). */
2728 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2730 next
= nbfd
->archive_next
;
2734 htab
= bfd_ardata (abfd
)->cache
;
2737 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2739 bfd_ardata (abfd
)->cache
= NULL
;
2742 if (arch_eltdata (abfd
) != NULL
)
2744 struct areltdata
*ared
= arch_eltdata (abfd
);
2745 htab_t htab
= (htab_t
) ared
->parent_cache
;
2749 struct ar_cache ent
;
2752 ent
.ptr
= ared
->key
;
2753 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2756 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2757 htab_clear_slot (htab
, slot
);
2761 if (abfd
->is_linker_output
)
2762 (*abfd
->link
.hash
->hash_table_free
) (abfd
);