1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2015 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
;
400 find_nested_archive (const char *filename
, bfd
*arch_bfd
)
404 /* PR 15140: Don't allow a nested archive pointing to itself. */
405 if (filename_cmp (filename
, arch_bfd
->filename
) == 0)
407 bfd_set_error (bfd_error_malformed_archive
);
411 for (abfd
= arch_bfd
->nested_archives
;
413 abfd
= abfd
->archive_next
)
415 if (filename_cmp (filename
, abfd
->filename
) == 0)
418 abfd
= open_nested_file (filename
, arch_bfd
);
421 abfd
->archive_next
= arch_bfd
->nested_archives
;
422 arch_bfd
->nested_archives
= abfd
;
427 /* The name begins with space. Hence the rest of the name is an index into
431 get_extended_arelt_filename (bfd
*arch
, const char *name
, file_ptr
*originp
)
433 unsigned long table_index
= 0;
436 /* Should extract string so that I can guarantee not to overflow into
437 the next region, but I'm too lazy. */
439 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
440 table_index
= strtol (name
+ 1, (char **) &endp
, 10);
441 if (errno
!= 0 || table_index
>= bfd_ardata (arch
)->extended_names_size
)
443 bfd_set_error (bfd_error_malformed_archive
);
446 /* In a thin archive, a member of an archive-within-an-archive
447 will have the offset in the inner archive encoded here. */
448 if (bfd_is_thin_archive (arch
) && endp
!= NULL
&& *endp
== ':')
450 file_ptr origin
= strtol (endp
+ 1, NULL
, 10);
454 bfd_set_error (bfd_error_malformed_archive
);
462 return bfd_ardata (arch
)->extended_names
+ table_index
;
465 /* This functions reads an arch header and returns an areltdata pointer, or
468 Presumes the file pointer is already in the right place (ie pointing
469 to the ar_hdr in the file). Moves the file pointer; on success it
470 should be pointing to the front of the file contents; on failure it
471 could have been moved arbitrarily. */
474 _bfd_generic_read_ar_hdr (bfd
*abfd
)
476 return _bfd_generic_read_ar_hdr_mag (abfd
, NULL
);
479 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
480 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
483 _bfd_generic_read_ar_hdr_mag (bfd
*abfd
, const char *mag
)
486 char *hdrp
= (char *) &hdr
;
487 bfd_size_type parsed_size
;
488 struct areltdata
*ared
;
489 char *filename
= NULL
;
490 bfd_size_type namelen
= 0;
491 bfd_size_type allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
494 unsigned int extra_size
= 0;
498 if (bfd_bread (hdrp
, sizeof (struct ar_hdr
), abfd
) != sizeof (struct ar_hdr
))
500 if (bfd_get_error () != bfd_error_system_call
)
501 bfd_set_error (bfd_error_no_more_archived_files
);
504 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
506 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
508 bfd_set_error (bfd_error_malformed_archive
);
513 fmag_save
= hdr
.ar_fmag
[0];
515 scan
= sscanf (hdr
.ar_size
, "%" BFD_VMA_FMT
"u", &parsed_size
);
516 hdr
.ar_fmag
[0] = fmag_save
;
519 bfd_set_error (bfd_error_malformed_archive
);
523 /* Extract the filename from the archive - there are two ways to
524 specify an extended name table, either the first char of the
525 name is a space, or it's a slash. */
526 if ((hdr
.ar_name
[0] == '/'
527 || (hdr
.ar_name
[0] == ' '
528 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
529 && bfd_ardata (abfd
)->extended_names
!= NULL
)
531 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
, &origin
);
532 if (filename
== NULL
)
535 /* BSD4.4-style long filename. */
536 else if (is_bsd44_extended_name (hdr
.ar_name
))
538 /* BSD-4.4 extended name */
539 namelen
= atoi (&hdr
.ar_name
[3]);
540 allocsize
+= namelen
+ 1;
541 parsed_size
-= namelen
;
542 extra_size
= namelen
;
544 allocptr
= (char *) bfd_zmalloc (allocsize
);
545 if (allocptr
== NULL
)
548 + sizeof (struct areltdata
)
549 + sizeof (struct ar_hdr
));
550 if (bfd_bread (filename
, namelen
, abfd
) != namelen
)
553 if (bfd_get_error () != bfd_error_system_call
)
554 bfd_set_error (bfd_error_no_more_archived_files
);
557 filename
[namelen
] = '\0';
561 /* We judge the end of the name by looking for '/' or ' '.
562 Note: The SYSV format (terminated by '/') allows embedded
563 spaces, so only look for ' ' if we don't find '/'. */
566 e
= (char *) memchr (hdr
.ar_name
, '\0', ar_maxnamelen (abfd
));
569 e
= (char *) memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
));
571 e
= (char *) memchr (hdr
.ar_name
, ' ', ar_maxnamelen (abfd
));
575 namelen
= e
- hdr
.ar_name
;
578 /* If we didn't find a termination character, then the name
579 must be the entire field. */
580 namelen
= ar_maxnamelen (abfd
);
583 allocsize
+= namelen
+ 1;
588 allocptr
= (char *) bfd_zmalloc (allocsize
);
589 if (allocptr
== NULL
)
593 ared
= (struct areltdata
*) allocptr
;
595 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
596 memcpy (ared
->arch_header
, &hdr
, sizeof (struct ar_hdr
));
597 ared
->parsed_size
= parsed_size
;
598 ared
->extra_size
= extra_size
;
599 ared
->origin
= origin
;
601 if (filename
!= NULL
)
602 ared
->filename
= filename
;
605 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
606 sizeof (struct ar_hdr
));
608 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
609 ared
->filename
[namelen
] = '\0';
615 /* Append the relative pathname for a member of the thin archive
616 to the pathname of the directory containing the archive. */
619 _bfd_append_relative_path (bfd
*arch
, char *elt_name
)
621 const char *arch_name
= arch
->filename
;
622 const char *base_name
= lbasename (arch_name
);
626 if (base_name
== arch_name
)
629 prefix_len
= base_name
- arch_name
;
630 filename
= (char *) bfd_alloc (arch
, prefix_len
+ strlen (elt_name
) + 1);
631 if (filename
== NULL
)
634 strncpy (filename
, arch_name
, prefix_len
);
635 strcpy (filename
+ prefix_len
, elt_name
);
639 /* This is an internal function; it's mainly used when indexing
640 through the archive symbol table, but also used to get the next
641 element, since it handles the bookkeeping so nicely for us. */
644 _bfd_get_elt_at_filepos (bfd
*archive
, file_ptr filepos
)
646 struct areltdata
*new_areldata
;
650 n_bfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
654 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
657 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
660 filename
= new_areldata
->filename
;
662 if (bfd_is_thin_archive (archive
))
664 /* This is a proxy entry for an external file. */
665 if (! IS_ABSOLUTE_PATH (filename
))
667 filename
= _bfd_append_relative_path (archive
, filename
);
668 if (filename
== NULL
)
675 if (new_areldata
->origin
> 0)
677 /* This proxy entry refers to an element of a nested archive.
678 Locate the member of that archive and return a bfd for it. */
679 bfd
*ext_arch
= find_nested_archive (filename
, archive
);
682 || ! bfd_check_format (ext_arch
, bfd_archive
))
687 n_bfd
= _bfd_get_elt_at_filepos (ext_arch
, new_areldata
->origin
);
693 n_bfd
->proxy_origin
= bfd_tell (archive
);
697 /* It's not an element of a nested archive;
698 open the external file as a bfd. */
699 n_bfd
= open_nested_file (filename
, archive
);
701 bfd_set_error (bfd_error_malformed_archive
);
705 n_bfd
= _bfd_create_empty_archive_element_shell (archive
);
714 n_bfd
->proxy_origin
= bfd_tell (archive
);
716 if (bfd_is_thin_archive (archive
))
722 n_bfd
->origin
= n_bfd
->proxy_origin
;
723 n_bfd
->filename
= xstrdup (filename
);
726 n_bfd
->arelt_data
= new_areldata
;
728 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
729 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
731 | BFD_COMPRESS_GABI
);
733 if (_bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
737 n_bfd
->arelt_data
= NULL
;
741 /* Return the BFD which is referenced by the symbol in ABFD indexed by
742 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
745 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
749 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
750 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
755 bfd_openr_next_archived_file
758 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
761 Provided a BFD, @var{archive}, containing an archive and NULL, open
762 an input BFD on the first contained element and returns that.
763 Subsequent calls should pass
764 the archive and the previous return value to return a created
765 BFD to the next contained element. NULL is returned when there
770 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
772 if ((bfd_get_format (archive
) != bfd_archive
)
773 || (archive
->direction
== write_direction
))
775 bfd_set_error (bfd_error_invalid_operation
);
779 return BFD_SEND (archive
,
780 openr_next_archived_file
, (archive
, last_file
));
784 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
789 filestart
= bfd_ardata (archive
)->first_file_filepos
;
792 bfd_size_type size
= arelt_size (last_file
);
794 filestart
= last_file
->proxy_origin
;
795 if (! bfd_is_thin_archive (archive
))
797 /* Pad to an even boundary...
798 Note that last_file->origin can be odd in the case of
799 BSD-4.4-style element with a long odd size. */
800 filestart
+= filestart
% 2;
803 return _bfd_get_elt_at_filepos (archive
, filestart
);
807 bfd_generic_archive_p (bfd
*abfd
)
809 struct artdata
*tdata_hold
;
810 char armag
[SARMAG
+ 1];
813 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
815 if (bfd_get_error () != bfd_error_system_call
)
816 bfd_set_error (bfd_error_wrong_format
);
820 bfd_is_thin_archive (abfd
) = (strncmp (armag
, ARMAGT
, SARMAG
) == 0);
822 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
823 && strncmp (armag
, ARMAGB
, SARMAG
) != 0
824 && ! bfd_is_thin_archive (abfd
))
827 tdata_hold
= bfd_ardata (abfd
);
829 amt
= sizeof (struct artdata
);
830 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
831 if (bfd_ardata (abfd
) == NULL
)
833 bfd_ardata (abfd
) = tdata_hold
;
837 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
838 /* Cleared by bfd_zalloc above.
839 bfd_ardata (abfd)->cache = NULL;
840 bfd_ardata (abfd)->archive_head = NULL;
841 bfd_ardata (abfd)->symdefs = NULL;
842 bfd_ardata (abfd)->extended_names = NULL;
843 bfd_ardata (abfd)->extended_names_size = 0;
844 bfd_ardata (abfd)->tdata = NULL; */
846 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
847 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
849 if (bfd_get_error () != bfd_error_system_call
)
850 bfd_set_error (bfd_error_wrong_format
);
851 bfd_release (abfd
, bfd_ardata (abfd
));
852 bfd_ardata (abfd
) = tdata_hold
;
856 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
860 /* This archive has a map, so we may presume that the contents
861 are object files. Make sure that if the first file in the
862 archive can be recognized as an object file, it is for this
863 target. If not, assume that this is the wrong format. If
864 the first file is not an object file, somebody is doing
865 something weird, and we permit it so that ar -t will work.
867 This is done because any normal format will recognize any
868 normal archive, regardless of the format of the object files.
869 We do accept an empty archive. */
871 first
= bfd_openr_next_archived_file (abfd
, NULL
);
874 first
->target_defaulted
= FALSE
;
875 if (bfd_check_format (first
, bfd_object
)
876 && first
->xvec
!= abfd
->xvec
)
877 bfd_set_error (bfd_error_wrong_object_format
);
878 /* And we ought to close `first' here too. */
885 /* Some constants for a 32 bit BSD archive structure. We do not
886 support 64 bit archives presently; so far as I know, none actually
887 exist. Supporting them would require changing these constants, and
888 changing some H_GET_32 to H_GET_64. */
890 /* The size of an external symdef structure. */
891 #define BSD_SYMDEF_SIZE 8
893 /* The offset from the start of a symdef structure to the file offset. */
894 #define BSD_SYMDEF_OFFSET_SIZE 4
896 /* The size of the symdef count. */
897 #define BSD_SYMDEF_COUNT_SIZE 4
899 /* The size of the string count. */
900 #define BSD_STRING_COUNT_SIZE 4
902 /* Read a BSD-style archive symbol table. Returns FALSE on error,
906 do_slurp_bsd_armap (bfd
*abfd
)
908 struct areltdata
*mapdata
;
909 unsigned int counter
;
910 bfd_byte
*raw_armap
, *rbase
;
911 struct artdata
*ardata
= bfd_ardata (abfd
);
913 bfd_size_type parsed_size
, amt
;
916 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
919 parsed_size
= mapdata
->parsed_size
;
921 /* PR 17512: file: 883ff754. */
922 /* PR 17512: file: 0458885f. */
926 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
927 if (raw_armap
== NULL
)
930 if (bfd_bread (raw_armap
, parsed_size
, abfd
) != parsed_size
)
932 if (bfd_get_error () != bfd_error_system_call
)
933 bfd_set_error (bfd_error_malformed_archive
);
935 bfd_release (abfd
, raw_armap
);
939 ardata
->symdef_count
= H_GET_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
940 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
941 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
943 /* Probably we're using the wrong byte ordering. */
944 bfd_set_error (bfd_error_wrong_format
);
949 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
950 stringbase
= ((char *) rbase
951 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
952 + BSD_STRING_COUNT_SIZE
);
953 amt
= ardata
->symdef_count
* sizeof (carsym
);
954 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
955 if (!ardata
->symdefs
)
958 for (counter
= 0, set
= ardata
->symdefs
;
959 counter
< ardata
->symdef_count
;
960 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
962 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
963 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
966 ardata
->first_file_filepos
= bfd_tell (abfd
);
967 /* Pad to an even boundary if you have to. */
968 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
969 /* FIXME, we should provide some way to free raw_ardata when
970 we are done using the strings from it. For now, it seems
971 to be allocated on an objalloc anyway... */
972 bfd_has_map (abfd
) = TRUE
;
976 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
980 do_slurp_coff_armap (bfd
*abfd
)
982 struct areltdata
*mapdata
;
983 int *raw_armap
, *rawptr
;
984 struct artdata
*ardata
= bfd_ardata (abfd
);
986 bfd_size_type stringsize
;
987 bfd_size_type parsed_size
;
989 bfd_size_type nsymz
; /* Number of symbols in armap. */
990 bfd_vma (*swap
) (const void *);
991 char int_buf
[sizeof (long)];
992 bfd_size_type carsym_size
, ptrsize
;
995 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
998 parsed_size
= mapdata
->parsed_size
;
1001 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1003 if (bfd_get_error () != bfd_error_system_call
)
1004 bfd_set_error (bfd_error_malformed_archive
);
1007 /* It seems that all numeric information in a coff archive is always
1008 in big endian format, nomatter the host or target. */
1010 nsymz
= bfd_getb32 (int_buf
);
1011 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1013 /* ... except that some archive formats are broken, and it may be our
1014 fault - the i960 little endian coff sometimes has big and sometimes
1015 little, because our tools changed. Here's a horrible hack to clean
1018 if (stringsize
> 0xfffff
1019 && bfd_get_arch (abfd
) == bfd_arch_i960
1020 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
)
1022 /* This looks dangerous, let's do it the other way around. */
1023 nsymz
= bfd_getl32 (int_buf
);
1024 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1028 /* The coff armap must be read sequentially. So we construct a
1029 bsd-style one in core all at once, for simplicity. */
1031 if (nsymz
> ~ (bfd_size_type
) 0 / sizeof (carsym
))
1034 carsym_size
= (nsymz
* sizeof (carsym
));
1035 ptrsize
= (4 * nsymz
);
1037 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1040 ardata
->symdefs
= (struct carsym
*) bfd_zalloc (abfd
,
1041 carsym_size
+ stringsize
+ 1);
1042 if (ardata
->symdefs
== NULL
)
1044 carsyms
= ardata
->symdefs
;
1045 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1047 /* Allocate and read in the raw offsets. */
1048 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
1049 if (raw_armap
== NULL
)
1050 goto release_symdefs
;
1051 if (bfd_bread (raw_armap
, ptrsize
, abfd
) != ptrsize
1052 || (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
))
1054 if (bfd_get_error () != bfd_error_system_call
)
1055 bfd_set_error (bfd_error_malformed_archive
);
1056 goto release_raw_armap
;
1059 /* OK, build the carsyms. */
1060 for (i
= 0; i
< nsymz
&& stringsize
> 0; i
++)
1064 rawptr
= raw_armap
+ i
;
1065 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1066 carsyms
->name
= stringbase
;
1067 /* PR 17512: file: 4a1d50c1. */
1068 len
= strnlen (stringbase
, stringsize
);
1069 if (len
< stringsize
)
1077 ardata
->symdef_count
= nsymz
;
1078 ardata
->first_file_filepos
= bfd_tell (abfd
);
1079 /* Pad to an even boundary if you have to. */
1080 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1082 bfd_has_map (abfd
) = TRUE
;
1083 bfd_release (abfd
, raw_armap
);
1085 /* Check for a second archive header (as used by PE). */
1087 struct areltdata
*tmp
;
1089 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
1090 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1093 if (tmp
->arch_header
[0] == '/'
1094 && tmp
->arch_header
[1] == ' ')
1096 ardata
->first_file_filepos
+=
1097 (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1106 bfd_release (abfd
, raw_armap
);
1108 bfd_release (abfd
, (ardata
)->symdefs
);
1112 /* This routine can handle either coff-style or bsd-style armaps
1113 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1116 bfd_slurp_armap (bfd
*abfd
)
1119 int i
= bfd_bread (nextname
, 16, abfd
);
1126 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1129 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1130 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1131 return do_slurp_bsd_armap (abfd
);
1132 else if (CONST_STRNEQ (nextname
, "/ "))
1133 return do_slurp_coff_armap (abfd
);
1134 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1136 /* 64bit ELF (Irix 6) archive. */
1138 extern bfd_boolean
bfd_elf64_archive_slurp_armap (bfd
*);
1139 return bfd_elf64_archive_slurp_armap (abfd
);
1141 bfd_set_error (bfd_error_wrong_format
);
1145 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1147 /* Mach-O has a special name for armap when the map is sorted by name.
1148 However because this name has a space it is slightly more difficult
1153 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1155 /* Read the extended name. We know its length. */
1156 if (bfd_bread (extname
, 20, abfd
) != 20)
1158 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1161 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1162 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1163 return do_slurp_bsd_armap (abfd
);
1166 bfd_has_map (abfd
) = FALSE
;
1170 /* Returns FALSE on error, TRUE otherwise. */
1171 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1172 header is in a slightly different order and the map name is '/'.
1173 This flavour is used by hp300hpux. */
1175 #define HPUX_SYMDEF_COUNT_SIZE 2
1178 bfd_slurp_bsd_armap_f2 (bfd
*abfd
)
1180 struct areltdata
*mapdata
;
1182 unsigned int counter
;
1183 bfd_byte
*raw_armap
, *rbase
;
1184 struct artdata
*ardata
= bfd_ardata (abfd
);
1186 unsigned int stringsize
;
1190 int i
= bfd_bread (nextname
, 16, abfd
);
1197 /* The archive has at least 16 bytes in it. */
1198 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1201 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1202 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1203 return do_slurp_bsd_armap (abfd
);
1205 if (! CONST_STRNEQ (nextname
, "/ "))
1207 bfd_has_map (abfd
) = FALSE
;
1211 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1212 if (mapdata
== NULL
)
1215 if (mapdata
->parsed_size
< HPUX_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
1219 bfd_set_error (bfd_error_wrong_format
);
1223 left
= mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
- BSD_STRING_COUNT_SIZE
;
1225 amt
= mapdata
->parsed_size
;
1228 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, amt
);
1229 if (raw_armap
== NULL
)
1232 if (bfd_bread (raw_armap
, amt
, abfd
) != amt
)
1234 if (bfd_get_error () != bfd_error_system_call
)
1235 bfd_set_error (bfd_error_malformed_archive
);
1239 ardata
->symdef_count
= H_GET_16 (abfd
, raw_armap
);
1243 stringsize
= H_GET_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1244 if (stringsize
> left
)
1248 /* Skip sym count and string sz. */
1249 stringbase
= ((char *) raw_armap
1250 + HPUX_SYMDEF_COUNT_SIZE
1251 + BSD_STRING_COUNT_SIZE
);
1252 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1253 amt
= ardata
->symdef_count
* BSD_SYMDEF_SIZE
;
1257 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1258 if (!ardata
->symdefs
)
1261 for (counter
= 0, set
= ardata
->symdefs
;
1262 counter
< ardata
->symdef_count
;
1263 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1265 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
1266 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1269 ardata
->first_file_filepos
= bfd_tell (abfd
);
1270 /* Pad to an even boundary if you have to. */
1271 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1272 /* FIXME, we should provide some way to free raw_ardata when
1273 we are done using the strings from it. For now, it seems
1274 to be allocated on an objalloc anyway... */
1275 bfd_has_map (abfd
) = TRUE
;
1279 /** Extended name table.
1281 Normally archives support only 14-character filenames.
1283 Intel has extended the format: longer names are stored in a special
1284 element (the first in the archive, or second if there is an armap);
1285 the name in the ar_hdr is replaced by <space><index into filename
1286 element>. Index is the P.R. of an int (decimal). Data General have
1287 extended the format by using the prefix // for the special element. */
1289 /* Returns FALSE on error, TRUE otherwise. */
1292 _bfd_slurp_extended_name_table (bfd
*abfd
)
1295 struct areltdata
*namedata
;
1298 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1299 we probably don't want to return TRUE. */
1300 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1303 if (bfd_bread (nextname
, 16, abfd
) == 16)
1305 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1308 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1309 && ! CONST_STRNEQ (nextname
, "// "))
1311 bfd_ardata (abfd
)->extended_names
= NULL
;
1312 bfd_ardata (abfd
)->extended_names_size
= 0;
1316 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1317 if (namedata
== NULL
)
1320 amt
= namedata
->parsed_size
;
1324 bfd_ardata (abfd
)->extended_names_size
= amt
;
1325 bfd_ardata (abfd
)->extended_names
= (char *) bfd_zalloc (abfd
, amt
+ 1);
1326 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1330 bfd_ardata (abfd
)->extended_names
= NULL
;
1331 bfd_ardata (abfd
)->extended_names_size
= 0;
1335 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1337 if (bfd_get_error () != bfd_error_system_call
)
1338 bfd_set_error (bfd_error_malformed_archive
);
1339 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1340 bfd_ardata (abfd
)->extended_names
= NULL
;
1344 /* Since the archive is supposed to be printable if it contains
1345 text, the entries in the list are newline-padded, not null
1346 padded. In SVR4-style archives, the names also have a
1347 trailing '/'. DOS/NT created archive often have \ in them
1348 We'll fix all problems here. */
1350 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1351 char *temp
= ext_names
;
1352 char *limit
= temp
+ namedata
->parsed_size
;
1354 for (; temp
< limit
; ++temp
)
1356 if (*temp
== ARFMAG
[1])
1357 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1364 /* Pad to an even boundary if you have to. */
1365 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1366 bfd_ardata (abfd
)->first_file_filepos
+=
1367 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1376 /* Return a copy of the stuff in the filename between any :]> and a
1380 normalize (bfd
*abfd
, const char *file
)
1386 first
= file
+ strlen (file
) - 1;
1389 while (first
!= file
)
1393 if (*first
== ':' || *first
== ']' || *first
== '>')
1401 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1405 memcpy (copy
, first
, last
- first
);
1406 copy
[last
- first
] = 0;
1413 normalize (bfd
*abfd ATTRIBUTE_UNUSED
, const char *file
)
1415 return lbasename (file
);
1419 /* Adjust a relative path name based on the reference path.
1422 Relative path Reference path Result
1423 ------------- -------------- ------
1425 foo/bar.o lib.a foo/bar.o
1426 bar.o foo/lib.a ../bar.o
1427 foo/bar.o baz/lib.a ../foo/bar.o
1428 bar.o ../lib.a <parent of current dir>/bar.o
1429 ; ../bar.o ../lib.a bar.o
1430 ; ../bar.o lib.a ../bar.o
1431 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1432 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1433 bar.o foo/baz/lib.a ../../bar.o
1435 Note - the semicolons above are there to prevent the BFD chew
1436 utility from interpreting those lines as prototypes to put into
1437 the autogenerated bfd.h header...
1439 Note - the string is returned in a static buffer. */
1442 adjust_relative_path (const char * path
, const char * ref_path
)
1444 static char *pathbuf
= NULL
;
1445 static unsigned int pathbuf_len
= 0;
1451 unsigned int dir_up
= 0;
1452 unsigned int dir_down
= 0;
1454 char * pwd
= getpwd ();
1457 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1458 lpath
= lrealpath (path
);
1459 pathp
= lpath
== NULL
? path
: lpath
;
1461 rpath
= lrealpath (ref_path
);
1462 refp
= rpath
== NULL
? ref_path
: rpath
;
1464 /* Remove common leading path elements. */
1467 const char *e1
= pathp
;
1468 const char *e2
= refp
;
1470 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1472 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1474 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1475 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1481 len
= strlen (pathp
) + 1;
1482 /* For each leading path element in the reference path,
1483 insert "../" into the path. */
1484 for (; *refp
; ++refp
)
1485 if (IS_DIR_SEPARATOR (*refp
))
1487 /* PR 12710: If the path element is "../" then instead of
1488 inserting "../" we need to insert the name of the directory
1489 at the current level. */
1490 if (refp
> ref_path
+ 1
1498 /* If the lrealpath calls above succeeded then we should never
1499 see dir_up and dir_down both being non-zero. */
1505 down
= pwd
+ strlen (pwd
) - 1;
1507 while (dir_down
&& down
> pwd
)
1509 if (IS_DIR_SEPARATOR (*down
))
1512 BFD_ASSERT (dir_down
== 0);
1513 len
+= strlen (down
) + 1;
1518 if (len
> pathbuf_len
)
1520 if (pathbuf
!= NULL
)
1523 pathbuf
= (char *) bfd_malloc (len
);
1524 if (pathbuf
== NULL
)
1530 while (dir_up
-- > 0)
1532 /* FIXME: Support Windows style path separators as well. */
1533 strcpy (newp
, "../");
1538 sprintf (newp
, "%s/%s", down
, pathp
);
1540 strcpy (newp
, pathp
);
1548 /* Build a BFD style extended name table. */
1551 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1553 bfd_size_type
*tablen
,
1556 *name
= "ARFILENAMES/";
1557 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1560 /* Build an SVR4 style extended name table. */
1563 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1565 bfd_size_type
*tablen
,
1569 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1572 /* Follows archive_head and produces an extended name table if
1573 necessary. Returns (in tabloc) a pointer to an extended name
1574 table, and in tablen the length of the table. If it makes an entry
1575 it clobbers the filename so that the element may be written without
1576 further massage. Returns TRUE if it ran successfully, FALSE if
1577 something went wrong. A successful return may still involve a
1578 zero-length tablen! */
1581 _bfd_construct_extended_name_table (bfd
*abfd
,
1582 bfd_boolean trailing_slash
,
1584 bfd_size_type
*tablen
)
1586 unsigned int maxname
= ar_maxnamelen (abfd
);
1587 bfd_size_type total_namelen
= 0;
1590 const char *last_filename
;
1594 last_filename
= NULL
;
1596 /* Figure out how long the table should be. */
1597 for (current
= abfd
->archive_head
;
1599 current
= current
->archive_next
)
1602 unsigned int thislen
;
1604 if (bfd_is_thin_archive (abfd
))
1606 const char *filename
= current
->filename
;
1608 /* If the element being added is a member of another archive
1609 (i.e., we are flattening), use the containing archive's name. */
1610 if (current
->my_archive
1611 && ! bfd_is_thin_archive (current
->my_archive
))
1612 filename
= current
->my_archive
->filename
;
1614 /* If the path is the same as the previous path seen,
1615 reuse it. This can happen when flattening a thin
1616 archive that contains other archives. */
1617 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1620 last_filename
= filename
;
1622 /* If the path is relative, adjust it relative to
1623 the containing archive. */
1624 if (! IS_ABSOLUTE_PATH (filename
)
1625 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1626 normal
= adjust_relative_path (filename
, abfd
->filename
);
1630 /* In a thin archive, always store the full pathname
1631 in the extended name table. */
1632 total_namelen
+= strlen (normal
) + 1;
1634 /* Leave room for trailing slash. */
1640 normal
= normalize (current
, current
->filename
);
1644 thislen
= strlen (normal
);
1646 if (thislen
> maxname
1647 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1650 if (thislen
> maxname
)
1652 /* Add one to leave room for \n. */
1653 total_namelen
+= thislen
+ 1;
1656 /* Leave room for trailing slash. */
1662 struct ar_hdr
*hdr
= arch_hdr (current
);
1663 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1664 || (thislen
< sizeof hdr
->ar_name
1665 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1667 /* Must have been using extended format even though it
1668 didn't need to. Fix it to use normal format. */
1669 memcpy (hdr
->ar_name
, normal
, thislen
);
1670 if (thislen
< maxname
1671 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1672 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1677 if (total_namelen
== 0)
1680 *tabloc
= (char *) bfd_zalloc (abfd
, total_namelen
);
1681 if (*tabloc
== NULL
)
1684 *tablen
= total_namelen
;
1687 last_filename
= NULL
;
1690 for (current
= abfd
->archive_head
;
1692 current
= current
->archive_next
)
1695 unsigned int thislen
;
1697 const char *filename
= current
->filename
;
1699 if (bfd_is_thin_archive (abfd
))
1701 /* If the element being added is a member of another archive
1702 (i.e., we are flattening), use the containing archive's name. */
1703 if (current
->my_archive
1704 && ! bfd_is_thin_archive (current
->my_archive
))
1705 filename
= current
->my_archive
->filename
;
1706 /* If the path is the same as the previous path seen,
1707 reuse it. This can happen when flattening a thin
1708 archive that contains other archives.
1709 If the path is relative, adjust it relative to
1710 the containing archive. */
1711 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1712 normal
= last_filename
;
1713 else if (! IS_ABSOLUTE_PATH (filename
)
1714 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1715 normal
= adjust_relative_path (filename
, abfd
->filename
);
1721 normal
= normalize (current
, filename
);
1726 thislen
= strlen (normal
);
1727 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1729 /* Works for now; may need to be re-engineered if we
1730 encounter an oddball archive format and want to
1731 generalise this hack. */
1732 struct ar_hdr
*hdr
= arch_hdr (current
);
1733 if (normal
== last_filename
)
1734 stroff
= last_stroff
;
1737 strcpy (strptr
, normal
);
1738 if (! trailing_slash
)
1739 strptr
[thislen
] = ARFMAG
[1];
1742 strptr
[thislen
] = '/';
1743 strptr
[thislen
+ 1] = ARFMAG
[1];
1745 stroff
= strptr
- *tabloc
;
1746 last_stroff
= stroff
;
1748 hdr
->ar_name
[0] = ar_padchar (current
);
1749 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1751 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1753 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1755 current
->origin
- sizeof (struct ar_hdr
));
1758 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1759 if (normal
!= last_filename
)
1761 strptr
+= thislen
+ 1;
1764 last_filename
= filename
;
1772 /* Do not construct an extended name table but transforms name field into
1773 its extended form. */
1776 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1778 bfd_size_type
*tablen
,
1781 unsigned int maxname
= ar_maxnamelen (abfd
);
1788 for (current
= abfd
->archive_head
;
1790 current
= current
->archive_next
)
1792 const char *normal
= normalize (current
, current
->filename
);
1799 for (len
= 0; normal
[len
]; len
++)
1800 if (normal
[len
] == ' ')
1803 if (len
> maxname
|| has_space
)
1805 struct ar_hdr
*hdr
= arch_hdr (current
);
1807 len
= (len
+ 3) & ~3;
1808 arch_eltdata (current
)->extra_size
= len
;
1809 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1816 /* Write an archive header. */
1819 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1821 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1823 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1828 /* Write an archive header using BSD4.4 convention. */
1831 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1833 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1835 if (is_bsd44_extended_name (hdr
->ar_name
))
1837 /* This is a BSD 4.4 extended name. */
1838 const char *fullname
= normalize (abfd
, abfd
->filename
);
1839 unsigned int len
= strlen (fullname
);
1840 unsigned int padded_len
= (len
+ 3) & ~3;
1842 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1844 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1845 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1848 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1851 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1856 static const char pad
[3] = { 0, 0, 0 };
1858 len
= 4 - (len
& 3);
1859 if (bfd_bwrite (pad
, len
, archive
) != len
)
1865 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1871 /* A couple of functions for creating ar_hdrs. */
1873 #ifdef HPUX_LARGE_AR_IDS
1874 /* Function to encode large UID/GID values according to HP. */
1877 hpux_uid_gid_encode (char str
[6], long int id
)
1881 str
[5] = '@' + (id
& 3);
1884 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1885 str
[cnt
] = ' ' + (id
& 0x3f);
1887 #endif /* HPUX_LARGE_AR_IDS */
1897 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1898 make one. The filename must refer to a filename in the filesystem.
1899 The filename field of the ar_hdr will NOT be initialized. If member
1900 is set, and it's an in-memory bfd, we fake it. */
1902 static struct areltdata
*
1903 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1906 struct areltdata
*ared
;
1910 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1912 /* Assume we just "made" the member, and fake it. */
1913 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1914 time (&status
.st_mtime
);
1915 status
.st_uid
= getuid ();
1916 status
.st_gid
= getgid ();
1917 status
.st_mode
= 0644;
1918 status
.st_size
= bim
->size
;
1920 else if (stat (filename
, &status
) != 0)
1922 bfd_set_error (bfd_error_system_call
);
1926 /* If the caller requested that the BFD generate deterministic output,
1927 fake values for modification time, UID, GID, and file mode. */
1928 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1930 status
.st_mtime
= 0;
1933 status
.st_mode
= 0644;
1936 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1937 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1940 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1942 /* ar headers are space padded, not null padded! */
1943 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1945 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1947 #ifdef HPUX_LARGE_AR_IDS
1948 /* HP has a very "special" way to handle UID/GID's with numeric values
1950 if (status
.st_uid
> 99999)
1951 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1954 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1956 #ifdef HPUX_LARGE_AR_IDS
1957 /* HP has a very "special" way to handle UID/GID's with numeric values
1959 if (status
.st_gid
> 99999)
1960 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1963 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1965 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1967 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1972 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1973 ared
->parsed_size
= status
.st_size
;
1974 ared
->arch_header
= (char *) hdr
;
1979 /* Analogous to stat call. */
1982 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1987 if (abfd
->arelt_data
== NULL
)
1989 bfd_set_error (bfd_error_invalid_operation
);
1993 hdr
= arch_hdr (abfd
);
1994 /* PR 17512: file: 3d9e9fe9. */
1997 #define foo(arelt, stelt, size) \
1998 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1999 if (aloser == hdr->arelt) \
2002 /* Some platforms support special notations for large IDs. */
2003 #ifdef HPUX_LARGE_AR_IDS
2004 # define foo2(arelt, stelt, size) \
2005 if (hdr->arelt[5] == ' ') \
2007 foo (arelt, stelt, size); \
2012 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
2014 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
2017 buf->stelt += hdr->arelt[cnt] - ' '; \
2019 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
2022 buf->stelt += hdr->arelt[5] - '@'; \
2025 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
2028 foo (ar_date
, st_mtime
, 10);
2029 foo2 (ar_uid
, st_uid
, 10);
2030 foo2 (ar_gid
, st_gid
, 10);
2031 foo (ar_mode
, st_mode
, 8);
2033 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
2039 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2041 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2042 Fortunately ic960 users will never use that option. Fixing this
2043 is very hard; fortunately I know how to do it and will do so once
2044 intel's release is out the door. */
2046 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2048 const char *filename
;
2049 size_t maxlen
= ar_maxnamelen (abfd
);
2051 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2053 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2057 filename
= normalize (abfd
, pathname
);
2058 if (filename
== NULL
)
2064 length
= strlen (filename
);
2066 if (length
<= maxlen
)
2067 memcpy (hdr
->ar_name
, filename
, length
);
2069 /* Add the padding character if there is room for it. */
2071 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2072 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2076 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2078 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2080 const char *filename
= lbasename (pathname
);
2081 size_t maxlen
= ar_maxnamelen (abfd
);
2083 length
= strlen (filename
);
2085 if (length
<= maxlen
)
2086 memcpy (hdr
->ar_name
, filename
, length
);
2089 /* pathname: meet procrustes */
2090 memcpy (hdr
->ar_name
, filename
, maxlen
);
2094 if (length
< maxlen
)
2095 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2098 /* Store name into ar header. Truncates the name to fit.
2099 1> strip pathname to be just the basename.
2100 2> if it's short enuf to fit, stuff it in.
2101 3> If it doesn't end with .o, truncate it to fit
2102 4> truncate it before the .o, append .o, stuff THAT in. */
2104 /* This is what gnu ar does. It's better but incompatible with the
2108 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2110 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2112 const char *filename
= lbasename (pathname
);
2113 size_t maxlen
= ar_maxnamelen (abfd
);
2115 length
= strlen (filename
);
2117 if (length
<= maxlen
)
2118 memcpy (hdr
->ar_name
, filename
, length
);
2121 /* pathname: meet procrustes. */
2122 memcpy (hdr
->ar_name
, filename
, maxlen
);
2123 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2125 hdr
->ar_name
[maxlen
- 2] = '.';
2126 hdr
->ar_name
[maxlen
- 1] = 'o';
2132 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2135 /* The BFD is open for write and has its format set to bfd_archive. */
2138 _bfd_write_archive_contents (bfd
*arch
)
2141 char *etable
= NULL
;
2142 bfd_size_type elength
= 0;
2143 const char *ename
= NULL
;
2144 bfd_boolean makemap
= bfd_has_map (arch
);
2145 /* If no .o's, don't bother to make a map. */
2146 bfd_boolean hasobjects
= FALSE
;
2147 bfd_size_type wrote
;
2151 /* Verify the viability of all entries; if any of them live in the
2152 filesystem (as opposed to living in an archive open for input)
2153 then construct a fresh ar_hdr for them. */
2154 for (current
= arch
->archive_head
;
2156 current
= current
->archive_next
)
2158 /* This check is checking the bfds for the objects we're reading
2159 from (which are usually either an object file or archive on
2160 disk), not the archive entries we're writing to. We don't
2161 actually create bfds for the archive members, we just copy
2162 them byte-wise when we write out the archive. */
2163 if (bfd_write_p (current
))
2165 bfd_set_error (bfd_error_invalid_operation
);
2168 if (!current
->arelt_data
)
2170 current
->arelt_data
=
2171 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2172 if (!current
->arelt_data
)
2175 /* Put in the file name. */
2176 BFD_SEND (arch
, _bfd_truncate_arname
,
2177 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2180 if (makemap
&& ! hasobjects
)
2181 { /* Don't bother if we won't make a map! */
2182 if ((bfd_check_format (current
, bfd_object
)))
2187 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2188 (arch
, &etable
, &elength
, &ename
)))
2191 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2194 if (bfd_is_thin_archive (arch
))
2196 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2197 if (wrote
!= SARMAG
)
2200 if (makemap
&& hasobjects
)
2202 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2210 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2211 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2212 /* Round size up to even number in archive header. */
2213 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2214 (elength
+ 1) & ~(bfd_size_type
) 1))
2216 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2217 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2218 != sizeof (struct ar_hdr
))
2219 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2221 if ((elength
% 2) == 1)
2223 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2228 for (current
= arch
->archive_head
;
2230 current
= current
->archive_next
)
2232 char buffer
[DEFAULT_BUFFERSIZE
];
2233 bfd_size_type remaining
= arelt_size (current
);
2235 /* Write ar header. */
2236 if (!_bfd_write_ar_hdr (arch
, current
))
2238 if (bfd_is_thin_archive (arch
))
2240 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2245 unsigned int amt
= DEFAULT_BUFFERSIZE
;
2247 if (amt
> remaining
)
2250 if (bfd_bread (buffer
, amt
, current
) != amt
)
2252 if (bfd_get_error () != bfd_error_system_call
)
2253 bfd_set_error (bfd_error_file_truncated
);
2256 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2261 if ((arelt_size (current
) % 2) == 1)
2263 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2268 if (makemap
&& hasobjects
)
2270 /* Verify the timestamp in the archive file. If it would not be
2271 accepted by the linker, rewrite it until it would be. If
2272 anything odd happens, break out and just return. (The
2273 Berkeley linker checks the timestamp and refuses to read the
2274 table-of-contents if it is >60 seconds less than the file's
2275 modified-time. That painful hack requires this painful hack. */
2279 if (bfd_update_armap_timestamp (arch
))
2281 (*_bfd_error_handler
)
2282 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2284 while (++tries
< 6);
2290 bfd_set_error (bfd_error_on_input
, current
, bfd_get_error ());
2294 /* Note that the namidx for the first symbol is 0. */
2297 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2299 char *first_name
= NULL
;
2301 file_ptr elt_no
= 0;
2302 struct orl
*map
= NULL
;
2303 unsigned int orl_max
= 1024; /* Fine initial default. */
2304 unsigned int orl_count
= 0;
2306 asymbol
**syms
= NULL
;
2311 /* Dunno if this is the best place for this info... */
2313 elength
+= sizeof (struct ar_hdr
);
2314 elength
+= elength
% 2;
2316 amt
= orl_max
* sizeof (struct orl
);
2317 map
= (struct orl
*) bfd_malloc (amt
);
2321 /* We put the symbol names on the arch objalloc, and then discard
2323 first_name
= (char *) bfd_alloc (arch
, 1);
2324 if (first_name
== NULL
)
2327 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2328 while (arch
->archive_head
2329 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2330 arch
->archive_head
= arch
->archive_head
->archive_next
;
2332 /* Map over each element. */
2333 for (current
= arch
->archive_head
;
2335 current
= current
->archive_next
, elt_no
++)
2337 if (bfd_check_format (current
, bfd_object
)
2338 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2344 storage
= bfd_get_symtab_upper_bound (current
);
2350 if (storage
> syms_max
)
2355 syms
= (asymbol
**) bfd_malloc (syms_max
);
2359 symcount
= bfd_canonicalize_symtab (current
, syms
);
2363 /* Now map over all the symbols, picking out the ones we
2365 for (src_count
= 0; src_count
< symcount
; src_count
++)
2367 flagword flags
= (syms
[src_count
])->flags
;
2368 asection
*sec
= syms
[src_count
]->section
;
2370 if (((flags
& (BSF_GLOBAL
2373 | BSF_GNU_UNIQUE
)) != 0
2374 || bfd_is_com_section (sec
))
2375 && ! bfd_is_und_section (sec
))
2377 bfd_size_type namelen
;
2378 struct orl
*new_map
;
2380 /* This symbol will go into the archive header. */
2381 if (orl_count
== orl_max
)
2384 amt
= orl_max
* sizeof (struct orl
);
2385 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2386 if (new_map
== NULL
)
2392 if (strcmp (syms
[src_count
]->name
, "__gnu_lto_slim") == 0)
2393 (*_bfd_error_handler
)
2394 (_("%s: plugin needed to handle lto object"),
2395 bfd_get_filename (current
));
2396 namelen
= strlen (syms
[src_count
]->name
);
2397 amt
= sizeof (char *);
2398 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2399 if (map
[orl_count
].name
== NULL
)
2401 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2403 if (*(map
[orl_count
].name
) == NULL
)
2405 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2406 map
[orl_count
].u
.abfd
= current
;
2407 map
[orl_count
].namidx
= stridx
;
2409 stridx
+= namelen
+ 1;
2415 /* Now ask the BFD to free up any cached information, so we
2416 don't fill all of memory with symbol tables. */
2417 if (! bfd_free_cached_info (current
))
2422 /* OK, now we have collected all the data, let's write them out. */
2423 ret
= BFD_SEND (arch
, write_armap
,
2424 (arch
, elength
, map
, orl_count
, stridx
));
2430 if (first_name
!= NULL
)
2431 bfd_release (arch
, first_name
);
2440 if (first_name
!= NULL
)
2441 bfd_release (arch
, first_name
);
2447 bsd_write_armap (bfd
*arch
,
2448 unsigned int elength
,
2450 unsigned int orl_count
,
2453 int padit
= stridx
& 1;
2454 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2455 unsigned int stringsize
= stridx
+ padit
;
2456 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2457 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2459 bfd
*current
= arch
->archive_head
;
2460 bfd
*last_elt
= current
; /* Last element arch seen. */
2466 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2468 /* If deterministic, we use 0 as the timestamp in the map.
2469 Some linkers may require that the archive filesystem modification
2470 time is less than (or near to) the archive map timestamp. Those
2471 linkers should not be used with deterministic mode. (GNU ld and
2472 Gold do not have this restriction.) */
2473 bfd_ardata (arch
)->armap_timestamp
= 0;
2476 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2478 struct stat statbuf
;
2480 if (stat (arch
->filename
, &statbuf
) == 0)
2481 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2482 + ARMAP_TIME_OFFSET
);
2487 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2488 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2489 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2490 + offsetof (struct ar_hdr
, ar_date
[0]));
2491 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2492 bfd_ardata (arch
)->armap_timestamp
);
2493 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2494 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2495 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2497 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2498 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2499 != sizeof (struct ar_hdr
))
2501 H_PUT_32 (arch
, ranlibsize
, temp
);
2502 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2505 for (count
= 0; count
< orl_count
; count
++)
2507 unsigned int offset
;
2508 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2510 if (map
[count
].u
.abfd
!= last_elt
)
2514 struct areltdata
*ared
= arch_eltdata (current
);
2516 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2517 + sizeof (struct ar_hdr
));
2518 firstreal
+= firstreal
% 2;
2519 current
= current
->archive_next
;
2521 while (current
!= map
[count
].u
.abfd
);
2524 /* The archive file format only has 4 bytes to store the offset
2525 of the member. Check to make sure that firstreal has not grown
2527 offset
= (unsigned int) firstreal
;
2528 if (firstreal
!= (file_ptr
) offset
)
2530 bfd_set_error (bfd_error_file_truncated
);
2535 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2536 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2537 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2542 /* Now write the strings themselves. */
2543 H_PUT_32 (arch
, stringsize
, temp
);
2544 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2546 for (count
= 0; count
< orl_count
; count
++)
2548 size_t len
= strlen (*map
[count
].name
) + 1;
2550 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2554 /* The spec sez this should be a newline. But in order to be
2555 bug-compatible for sun's ar we use a null. */
2558 if (bfd_bwrite ("", 1, arch
) != 1)
2565 /* At the end of archive file handling, update the timestamp in the
2566 file, so the linker will accept it.
2568 Return TRUE if the timestamp was OK, or an unusual problem happened.
2569 Return FALSE if we updated the timestamp. */
2572 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2574 struct stat archstat
;
2577 /* If creating deterministic archives, just leave the timestamp as-is. */
2578 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2581 /* Flush writes, get last-write timestamp from file, and compare it
2582 to the timestamp IN the file. */
2584 if (bfd_stat (arch
, &archstat
) == -1)
2586 bfd_perror (_("Reading archive file mod timestamp"));
2588 /* Can't read mod time for some reason. */
2591 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2592 /* OK by the linker's rules. */
2595 /* Update the timestamp. */
2596 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2598 /* Prepare an ASCII version suitable for writing. */
2599 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2600 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2601 bfd_ardata (arch
)->armap_timestamp
);
2603 /* Write it into the file. */
2604 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2605 + offsetof (struct ar_hdr
, ar_date
[0]));
2606 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2607 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2608 != sizeof (hdr
.ar_date
)))
2610 bfd_perror (_("Writing updated armap timestamp"));
2612 /* Some error while writing. */
2616 /* We updated the timestamp successfully. */
2620 /* A coff armap looks like :
2622 struct ar_hdr with name = '/'
2624 offset of file for symbol 0
2625 offset of file for symbol 1
2627 offset of file for symbol n-1
2634 coff_write_armap (bfd
*arch
,
2635 unsigned int elength
,
2637 unsigned int symbol_count
,
2640 /* The size of the ranlib is the number of exported symbols in the
2641 archive * the number of bytes in an int, + an int for the count. */
2642 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2643 unsigned int stringsize
= stridx
;
2644 unsigned int mapsize
= stringsize
+ ranlibsize
;
2645 file_ptr archive_member_file_ptr
;
2646 bfd
*current
= arch
->archive_head
;
2649 int padit
= mapsize
& 1;
2654 /* Work out where the first object file will go in the archive. */
2655 archive_member_file_ptr
= (mapsize
2657 + sizeof (struct ar_hdr
)
2660 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2661 hdr
.ar_name
[0] = '/';
2662 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2664 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2665 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2666 ? time (NULL
) : 0));
2667 /* This, at least, is what Intel coff sets the values to. */
2668 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2669 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2670 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2671 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2673 /* Write the ar header for this item and the number of symbols. */
2674 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2675 != sizeof (struct ar_hdr
))
2678 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2681 /* Two passes, first write the file offsets for each symbol -
2682 remembering that each offset is on a two byte boundary. */
2684 /* Write out the file offset for the file associated with each
2685 symbol, and remember to keep the offsets padded out. */
2687 current
= arch
->archive_head
;
2689 while (current
!= NULL
&& count
< symbol_count
)
2691 /* For each symbol which is used defined in this object, write
2692 out the object file's address in the archive. */
2694 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2696 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2698 /* Catch an attempt to grow an archive past its 4Gb limit. */
2699 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2701 bfd_set_error (bfd_error_file_truncated
);
2704 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2708 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2709 if (! bfd_is_thin_archive (arch
))
2711 /* Add size of this archive entry. */
2712 archive_member_file_ptr
+= arelt_size (current
);
2713 /* Remember about the even alignment. */
2714 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2716 current
= current
->archive_next
;
2719 /* Now write the strings themselves. */
2720 for (count
= 0; count
< symbol_count
; count
++)
2722 size_t len
= strlen (*map
[count
].name
) + 1;
2724 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2728 /* The spec sez this should be a newline. But in order to be
2729 bug-compatible for arc960 we use a null. */
2732 if (bfd_bwrite ("", 1, arch
) != 1)
2740 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2742 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2744 bfd_close_all_done (ent
->arbfd
);
2749 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2751 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2757 /* Close nested archives (if this bfd is a thin archive). */
2758 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2760 next
= nbfd
->archive_next
;
2764 htab
= bfd_ardata (abfd
)->cache
;
2767 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2769 bfd_ardata (abfd
)->cache
= NULL
;
2772 if (arch_eltdata (abfd
) != NULL
)
2774 struct areltdata
*ared
= arch_eltdata (abfd
);
2775 htab_t htab
= (htab_t
) ared
->parent_cache
;
2779 struct ar_cache ent
;
2782 ent
.ptr
= ared
->key
;
2783 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2786 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2787 htab_clear_slot (htab
, slot
);
2791 if (abfd
->is_linker_output
)
2792 (*abfd
->link
.hash
->hash_table_free
) (abfd
);