1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2018 Free Software Foundation, Inc.
3 Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 @setfilename archive-info
27 An archive (or library) is just another BFD. It has a symbol
28 table, although there's not much a user program will do with it.
30 The big difference between an archive BFD and an ordinary BFD
31 is that the archive doesn't have sections. Instead it has a
32 chain of BFDs that are considered its contents. These BFDs can
33 be manipulated like any other. The BFDs contained in an
34 archive opened for reading will all be opened for reading. You
35 may put either input or output BFDs into an archive opened for
36 output; they will be handled correctly when the archive is closed.
38 Use <<bfd_openr_next_archived_file>> to step through
39 the contents of an archive opened for input. You don't
40 have to read the entire archive if you don't want
41 to! Read it until you find what you want.
43 A BFD returned by <<bfd_openr_next_archived_file>> can be
44 closed manually with <<bfd_close>>. If you do not close it,
45 then a second iteration through the members of an archive may
46 return the same BFD. If you close the archive BFD, then all
47 the member BFDs will automatically be closed as well.
49 Archive contents of output BFDs are chained through the
50 <<archive_next>> pointer in a BFD. The first one is findable
51 through the <<archive_head>> slot of the archive. Set it with
52 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only
53 one open output archive at a time.
55 As expected, the BFD archive code is more general than the
56 archive code of any given environment. BFD archives may
57 contain files of different formats (e.g., a.out and coff) and
58 even different architectures. You may even place archives
59 recursively into archives!
61 This can cause unexpected confusion, since some archive
62 formats are more expressive than others. For instance, Intel
63 COFF archives can preserve long filenames; SunOS a.out archives
64 cannot. If you move a file from the first to the second
65 format and back again, the filename may be truncated.
66 Likewise, different a.out environments have different
67 conventions as to how they truncate filenames, whether they
68 preserve directory names in filenames, etc. When
69 interoperating with native tools, be sure your files are
72 Beware: most of these formats do not react well to the
73 presence of spaces in filenames. We do the best we can, but
74 can't always handle this case due to restrictions in the format of
75 archives. Many Unix utilities are braindead in regards to
76 spaces and such in filenames anyway, so this shouldn't be much
79 Archives are supported in BFD in <<archive.c>>.
86 o - all archive elements start on an even boundary, newline padded;
87 o - all arch headers are char *;
88 o - all arch headers are the same size (across architectures).
91 /* Some formats provide a way to cram a long filename into the short
92 (16 chars) space provided by a BSD archive. The trick is: make a
93 special "file" in the front of the archive, sort of like the SYMDEF
94 entry. If the filename is too long to fit, put it in the extended
95 name table, and use its index as the filename. To prevent
96 confusion prepend the index with a space. This means you can't
97 have filenames that start with a space, but then again, many Unix
98 utilities can't handle that anyway.
100 This scheme unfortunately requires that you stand on your head in
101 order to write an archive since you need to put a magic file at the
102 front, and need to touch every entry to do so. C'est la vie.
104 We support two variants of this idea:
105 The SVR4 format (extended name table is named "//"),
106 and an extended pseudo-BSD variant (extended name table is named
107 "ARFILENAMES/"). The origin of the latter format is uncertain.
109 BSD 4.4 uses a third scheme: It writes a long filename
110 directly after the header. This allows 'ar q' to work.
113 /* Summary of archive member names:
115 Symbol table (must be first):
116 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
117 "/ " - Symbol table, system 5 style.
119 Long name table (must be before regular file members):
120 "// " - Long name table, System 5 R4 style.
121 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
123 Regular file members with short names:
124 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
125 "filename.o " - Regular file, Berkeley style (no embedded spaces).
127 Regular files with long names (or embedded spaces, for BSD variants):
128 "/18 " - SVR4 style, name at offset 18 in name table.
129 "#1/23 " - Long name (or embedded spaces) 23 characters long,
130 BSD 4.4 style, full name follows header.
131 " 18 " - Long name 18 characters long, extended pseudo-BSD.
136 #include "libiberty.h"
139 #include "aout/ranlib.h"
140 #include "safe-ctype.h"
142 #include "filenames.h"
149 /* We keep a cache of archive filepointers to archive elements to
150 speed up searching the archive by filepos. We only add an entry to
151 the cache when we actually read one. We also don't sort the cache;
152 it's generally short enough to search linearly.
153 Note that the pointers here point to the front of the ar_hdr, not
154 to the front of the contents! */
161 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
162 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
164 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
165 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
167 /* True iff NAME designated a BSD 4.4 extended name. */
169 #define is_bsd44_extended_name(NAME) \
170 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
173 _bfd_ar_spacepad (char *p
, size_t n
, const char *fmt
, long val
)
178 snprintf (buf
, sizeof (buf
), fmt
, val
);
182 memcpy (p
, buf
, len
);
183 memset (p
+ len
, ' ', n
- len
);
190 _bfd_ar_sizepad (char *p
, size_t n
, bfd_size_type size
)
195 snprintf (buf
, sizeof (buf
), "%-10" BFD_VMA_FMT
"u", size
);
199 bfd_set_error (bfd_error_file_too_big
);
204 memcpy (p
, buf
, len
);
205 memset (p
+ len
, ' ', n
- len
);
213 _bfd_generic_mkarchive (bfd
*abfd
)
215 bfd_size_type amt
= sizeof (struct artdata
);
217 abfd
->tdata
.aout_ar_data
= (struct artdata
*) bfd_zalloc (abfd
, amt
);
218 if (bfd_ardata (abfd
) == NULL
)
221 /* Already cleared by bfd_zalloc above.
222 bfd_ardata (abfd)->cache = NULL;
223 bfd_ardata (abfd)->archive_head = NULL;
224 bfd_ardata (abfd)->symdefs = NULL;
225 bfd_ardata (abfd)->extended_names = NULL;
226 bfd_ardata (abfd)->extended_names_size = 0;
227 bfd_ardata (abfd)->tdata = NULL; */
237 symindex bfd_get_next_mapent
238 (bfd *abfd, symindex previous, carsym **sym);
241 Step through archive @var{abfd}'s symbol table (if it
242 has one). Successively update @var{sym} with the next symbol's
243 information, returning that symbol's (internal) index into the
246 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
247 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
250 A <<carsym>> is a canonical archive symbol. The only
251 user-visible element is its name, a null-terminated string.
255 bfd_get_next_mapent (bfd
*abfd
, symindex prev
, carsym
**entry
)
257 if (!bfd_has_map (abfd
))
259 bfd_set_error (bfd_error_invalid_operation
);
260 return BFD_NO_MORE_SYMBOLS
;
263 if (prev
== BFD_NO_MORE_SYMBOLS
)
267 if (prev
>= bfd_ardata (abfd
)->symdef_count
)
268 return BFD_NO_MORE_SYMBOLS
;
270 *entry
= (bfd_ardata (abfd
)->symdefs
+ prev
);
274 /* To be called by backends only. */
277 _bfd_create_empty_archive_element_shell (bfd
*obfd
)
279 return _bfd_new_bfd_contained_in (obfd
);
287 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
290 Set the head of the chain of
291 BFDs contained in the archive @var{output} to @var{new_head}.
295 bfd_set_archive_head (bfd
*output_archive
, bfd
*new_head
)
297 output_archive
->archive_head
= new_head
;
302 _bfd_look_for_bfd_in_cache (bfd
*arch_bfd
, file_ptr filepos
)
304 htab_t hash_table
= bfd_ardata (arch_bfd
)->cache
;
311 struct ar_cache
*entry
= (struct ar_cache
*) htab_find (hash_table
, &m
);
315 /* Unfortunately this flag is set after checking that we have
316 an archive, and checking for an archive means one element has
317 sneaked into the cache. */
318 entry
->arbfd
->no_export
= arch_bfd
->no_export
;
326 hash_file_ptr (const void * p
)
328 return (hashval_t
) (((struct ar_cache
*) p
)->ptr
);
331 /* Returns non-zero if P1 and P2 are equal. */
334 eq_file_ptr (const void * p1
, const void * p2
)
336 struct ar_cache
*arc1
= (struct ar_cache
*) p1
;
337 struct ar_cache
*arc2
= (struct ar_cache
*) p2
;
338 return arc1
->ptr
== arc2
->ptr
;
341 /* The calloc function doesn't always take size_t (e.g. on VMS)
342 so wrap it to avoid a compile time warning. */
345 _bfd_calloc_wrapper (size_t a
, size_t b
)
347 return calloc (a
, b
);
350 /* Kind of stupid to call cons for each one, but we don't do too many. */
353 _bfd_add_bfd_to_archive_cache (bfd
*arch_bfd
, file_ptr filepos
, bfd
*new_elt
)
355 struct ar_cache
*cache
;
356 htab_t hash_table
= bfd_ardata (arch_bfd
)->cache
;
358 /* If the hash table hasn't been created, create it. */
359 if (hash_table
== NULL
)
361 hash_table
= htab_create_alloc (16, hash_file_ptr
, eq_file_ptr
,
362 NULL
, _bfd_calloc_wrapper
, free
);
363 if (hash_table
== NULL
)
365 bfd_ardata (arch_bfd
)->cache
= hash_table
;
368 /* Insert new_elt into the hash table by filepos. */
369 cache
= (struct ar_cache
*) bfd_zalloc (arch_bfd
, sizeof (struct ar_cache
));
370 cache
->ptr
= filepos
;
371 cache
->arbfd
= new_elt
;
372 *htab_find_slot (hash_table
, (const void *) cache
, INSERT
) = cache
;
374 /* Provide a means of accessing this from child. */
375 arch_eltdata (new_elt
)->parent_cache
= hash_table
;
376 arch_eltdata (new_elt
)->key
= filepos
;
382 open_nested_file (const char *filename
, bfd
*archive
)
388 if (!archive
->target_defaulted
)
389 target
= archive
->xvec
->name
;
390 n_bfd
= bfd_openr (filename
, target
);
393 n_bfd
->lto_output
= archive
->lto_output
;
394 n_bfd
->no_export
= archive
->no_export
;
395 n_bfd
->my_archive
= archive
;
401 find_nested_archive (const char *filename
, bfd
*arch_bfd
)
405 /* PR 15140: Don't allow a nested archive pointing to itself. */
406 if (filename_cmp (filename
, arch_bfd
->filename
) == 0)
408 bfd_set_error (bfd_error_malformed_archive
);
412 for (abfd
= arch_bfd
->nested_archives
;
414 abfd
= abfd
->archive_next
)
416 if (filename_cmp (filename
, abfd
->filename
) == 0)
419 abfd
= open_nested_file (filename
, arch_bfd
);
422 abfd
->archive_next
= arch_bfd
->nested_archives
;
423 arch_bfd
->nested_archives
= abfd
;
428 /* The name begins with space. Hence the rest of the name is an index into
432 get_extended_arelt_filename (bfd
*arch
, const char *name
, file_ptr
*originp
)
434 unsigned long table_index
= 0;
437 /* Should extract string so that I can guarantee not to overflow into
438 the next region, but I'm too lazy. */
440 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
441 table_index
= strtol (name
+ 1, (char **) &endp
, 10);
442 if (errno
!= 0 || table_index
>= bfd_ardata (arch
)->extended_names_size
)
444 bfd_set_error (bfd_error_malformed_archive
);
447 /* In a thin archive, a member of an archive-within-an-archive
448 will have the offset in the inner archive encoded here. */
449 if (bfd_is_thin_archive (arch
) && endp
!= NULL
&& *endp
== ':')
451 file_ptr origin
= strtol (endp
+ 1, NULL
, 10);
455 bfd_set_error (bfd_error_malformed_archive
);
463 return bfd_ardata (arch
)->extended_names
+ table_index
;
466 /* This functions reads an arch header and returns an areltdata pointer, or
469 Presumes the file pointer is already in the right place (ie pointing
470 to the ar_hdr in the file). Moves the file pointer; on success it
471 should be pointing to the front of the file contents; on failure it
472 could have been moved arbitrarily. */
475 _bfd_generic_read_ar_hdr (bfd
*abfd
)
477 return _bfd_generic_read_ar_hdr_mag (abfd
, NULL
);
480 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
481 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
484 _bfd_generic_read_ar_hdr_mag (bfd
*abfd
, const char *mag
)
487 char *hdrp
= (char *) &hdr
;
488 bfd_size_type parsed_size
;
489 struct areltdata
*ared
;
490 char *filename
= NULL
;
491 bfd_size_type namelen
= 0;
492 bfd_size_type allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
495 unsigned int extra_size
= 0;
499 if (bfd_bread (hdrp
, sizeof (struct ar_hdr
), abfd
) != sizeof (struct ar_hdr
))
501 if (bfd_get_error () != bfd_error_system_call
)
502 bfd_set_error (bfd_error_no_more_archived_files
);
505 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
507 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
509 bfd_set_error (bfd_error_malformed_archive
);
514 fmag_save
= hdr
.ar_fmag
[0];
516 scan
= sscanf (hdr
.ar_size
, "%" BFD_VMA_FMT
"u", &parsed_size
);
517 hdr
.ar_fmag
[0] = fmag_save
;
520 bfd_set_error (bfd_error_malformed_archive
);
524 /* Extract the filename from the archive - there are two ways to
525 specify an extended name table, either the first char of the
526 name is a space, or it's a slash. */
527 if ((hdr
.ar_name
[0] == '/'
528 || (hdr
.ar_name
[0] == ' '
529 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
530 && bfd_ardata (abfd
)->extended_names
!= NULL
)
532 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
, &origin
);
533 if (filename
== NULL
)
536 /* BSD4.4-style long filename. */
537 else if (is_bsd44_extended_name (hdr
.ar_name
))
539 /* BSD-4.4 extended name */
540 namelen
= atoi (&hdr
.ar_name
[3]);
541 allocsize
+= namelen
+ 1;
542 parsed_size
-= namelen
;
543 extra_size
= namelen
;
545 allocptr
= (char *) bfd_zmalloc (allocsize
);
546 if (allocptr
== NULL
)
549 + sizeof (struct areltdata
)
550 + sizeof (struct ar_hdr
));
551 if (bfd_bread (filename
, namelen
, abfd
) != namelen
)
554 if (bfd_get_error () != bfd_error_system_call
)
555 bfd_set_error (bfd_error_no_more_archived_files
);
558 filename
[namelen
] = '\0';
562 /* We judge the end of the name by looking for '/' or ' '.
563 Note: The SYSV format (terminated by '/') allows embedded
564 spaces, so only look for ' ' if we don't find '/'. */
567 e
= (char *) memchr (hdr
.ar_name
, '\0', ar_maxnamelen (abfd
));
570 e
= (char *) memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
));
572 e
= (char *) memchr (hdr
.ar_name
, ' ', ar_maxnamelen (abfd
));
576 namelen
= e
- hdr
.ar_name
;
579 /* If we didn't find a termination character, then the name
580 must be the entire field. */
581 namelen
= ar_maxnamelen (abfd
);
584 allocsize
+= namelen
+ 1;
589 allocptr
= (char *) bfd_zmalloc (allocsize
);
590 if (allocptr
== NULL
)
594 ared
= (struct areltdata
*) allocptr
;
596 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
597 memcpy (ared
->arch_header
, &hdr
, sizeof (struct ar_hdr
));
598 ared
->parsed_size
= parsed_size
;
599 ared
->extra_size
= extra_size
;
600 ared
->origin
= origin
;
602 if (filename
!= NULL
)
603 ared
->filename
= filename
;
606 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
607 sizeof (struct ar_hdr
));
609 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
610 ared
->filename
[namelen
] = '\0';
616 /* Append the relative pathname for a member of the thin archive
617 to the pathname of the directory containing the archive. */
620 _bfd_append_relative_path (bfd
*arch
, char *elt_name
)
622 const char *arch_name
= arch
->filename
;
623 const char *base_name
= lbasename (arch_name
);
627 if (base_name
== arch_name
)
630 prefix_len
= base_name
- arch_name
;
631 filename
= (char *) bfd_alloc (arch
, prefix_len
+ strlen (elt_name
) + 1);
632 if (filename
== NULL
)
635 strncpy (filename
, arch_name
, prefix_len
);
636 strcpy (filename
+ prefix_len
, elt_name
);
640 /* This is an internal function; it's mainly used when indexing
641 through the archive symbol table, but also used to get the next
642 element, since it handles the bookkeeping so nicely for us. */
645 _bfd_get_elt_at_filepos (bfd
*archive
, file_ptr filepos
)
647 struct areltdata
*new_areldata
;
651 n_bfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
655 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
658 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
661 filename
= new_areldata
->filename
;
663 if (bfd_is_thin_archive (archive
))
665 /* This is a proxy entry for an external file. */
666 if (! IS_ABSOLUTE_PATH (filename
))
668 filename
= _bfd_append_relative_path (archive
, filename
);
669 if (filename
== NULL
)
676 if (new_areldata
->origin
> 0)
678 /* This proxy entry refers to an element of a nested archive.
679 Locate the member of that archive and return a bfd for it. */
680 bfd
*ext_arch
= find_nested_archive (filename
, archive
);
683 || ! bfd_check_format (ext_arch
, bfd_archive
))
688 n_bfd
= _bfd_get_elt_at_filepos (ext_arch
, new_areldata
->origin
);
694 n_bfd
->proxy_origin
= bfd_tell (archive
);
698 /* It's not an element of a nested archive;
699 open the external file as a bfd. */
700 n_bfd
= open_nested_file (filename
, archive
);
702 bfd_set_error (bfd_error_malformed_archive
);
706 n_bfd
= _bfd_create_empty_archive_element_shell (archive
);
715 n_bfd
->proxy_origin
= bfd_tell (archive
);
717 if (bfd_is_thin_archive (archive
))
723 n_bfd
->origin
= n_bfd
->proxy_origin
;
724 n_bfd
->filename
= xstrdup (filename
);
727 n_bfd
->arelt_data
= new_areldata
;
729 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
730 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
732 | BFD_COMPRESS_GABI
);
734 /* Copy is_linker_input. */
735 n_bfd
->is_linker_input
= archive
->is_linker_input
;
737 if (_bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
741 n_bfd
->arelt_data
= NULL
;
745 /* Return the BFD which is referenced by the symbol in ABFD indexed by
746 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
749 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
753 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
754 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
759 bfd_openr_next_archived_file
762 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
765 Provided a BFD, @var{archive}, containing an archive and NULL, open
766 an input BFD on the first contained element and returns that.
767 Subsequent calls should pass the archive and the previous return
768 value to return a created BFD to the next contained element. NULL
769 is returned when there are no more.
770 Note - if you want to process the bfd returned by this call be
771 sure to call bfd_check_format() on it first.
775 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
777 if ((bfd_get_format (archive
) != bfd_archive
)
778 || (archive
->direction
== write_direction
))
780 bfd_set_error (bfd_error_invalid_operation
);
784 return BFD_SEND (archive
,
785 openr_next_archived_file
, (archive
, last_file
));
789 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
794 filestart
= bfd_ardata (archive
)->first_file_filepos
;
797 filestart
= last_file
->proxy_origin
;
798 if (! bfd_is_thin_archive (archive
))
800 bfd_size_type size
= arelt_size (last_file
);
803 /* Pad to an even boundary...
804 Note that last_file->origin can be odd in the case of
805 BSD-4.4-style element with a long odd size. */
806 filestart
+= filestart
% 2;
807 if (filestart
< last_file
->proxy_origin
)
809 /* Prevent looping. See PR19256. */
810 bfd_set_error (bfd_error_malformed_archive
);
816 return _bfd_get_elt_at_filepos (archive
, filestart
);
820 bfd_generic_archive_p (bfd
*abfd
)
822 struct artdata
*tdata_hold
;
823 char armag
[SARMAG
+ 1];
826 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
828 if (bfd_get_error () != bfd_error_system_call
)
829 bfd_set_error (bfd_error_wrong_format
);
833 bfd_is_thin_archive (abfd
) = (strncmp (armag
, ARMAGT
, SARMAG
) == 0);
835 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
836 && strncmp (armag
, ARMAGB
, SARMAG
) != 0
837 && ! bfd_is_thin_archive (abfd
))
839 bfd_set_error (bfd_error_wrong_format
);
840 if (abfd
->format
== bfd_archive
)
841 abfd
->format
= bfd_unknown
;
845 tdata_hold
= bfd_ardata (abfd
);
847 amt
= sizeof (struct artdata
);
848 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
849 if (bfd_ardata (abfd
) == NULL
)
851 bfd_ardata (abfd
) = tdata_hold
;
855 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
856 /* Cleared by bfd_zalloc above.
857 bfd_ardata (abfd)->cache = NULL;
858 bfd_ardata (abfd)->archive_head = NULL;
859 bfd_ardata (abfd)->symdefs = NULL;
860 bfd_ardata (abfd)->extended_names = NULL;
861 bfd_ardata (abfd)->extended_names_size = 0;
862 bfd_ardata (abfd)->tdata = NULL; */
864 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
865 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
867 if (bfd_get_error () != bfd_error_system_call
)
868 bfd_set_error (bfd_error_wrong_format
);
869 bfd_release (abfd
, bfd_ardata (abfd
));
870 bfd_ardata (abfd
) = tdata_hold
;
874 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
878 /* This archive has a map, so we may presume that the contents
879 are object files. Make sure that if the first file in the
880 archive can be recognized as an object file, it is for this
881 target. If not, assume that this is the wrong format. If
882 the first file is not an object file, somebody is doing
883 something weird, and we permit it so that ar -t will work.
885 This is done because any normal format will recognize any
886 normal archive, regardless of the format of the object files.
887 We do accept an empty archive. */
889 first
= bfd_openr_next_archived_file (abfd
, NULL
);
892 first
->target_defaulted
= FALSE
;
893 if (bfd_check_format (first
, bfd_object
)
894 && first
->xvec
!= abfd
->xvec
)
895 bfd_set_error (bfd_error_wrong_object_format
);
896 /* And we ought to close `first' here too. */
903 /* Some constants for a 32 bit BSD archive structure. We do not
904 support 64 bit archives presently; so far as I know, none actually
905 exist. Supporting them would require changing these constants, and
906 changing some H_GET_32 to H_GET_64. */
908 /* The size of an external symdef structure. */
909 #define BSD_SYMDEF_SIZE 8
911 /* The offset from the start of a symdef structure to the file offset. */
912 #define BSD_SYMDEF_OFFSET_SIZE 4
914 /* The size of the symdef count. */
915 #define BSD_SYMDEF_COUNT_SIZE 4
917 /* The size of the string count. */
918 #define BSD_STRING_COUNT_SIZE 4
920 /* Read a BSD-style archive symbol table. Returns FALSE on error,
924 do_slurp_bsd_armap (bfd
*abfd
)
926 struct areltdata
*mapdata
;
927 unsigned int counter
;
928 bfd_byte
*raw_armap
, *rbase
;
929 struct artdata
*ardata
= bfd_ardata (abfd
);
931 bfd_size_type parsed_size
, amt
;
934 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
937 parsed_size
= mapdata
->parsed_size
;
939 /* PR 17512: file: 883ff754. */
940 /* PR 17512: file: 0458885f. */
944 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
945 if (raw_armap
== NULL
)
948 if (bfd_bread (raw_armap
, parsed_size
, abfd
) != parsed_size
)
950 if (bfd_get_error () != bfd_error_system_call
)
951 bfd_set_error (bfd_error_malformed_archive
);
953 bfd_release (abfd
, raw_armap
);
957 ardata
->symdef_count
= H_GET_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
958 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
959 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
961 /* Probably we're using the wrong byte ordering. */
962 bfd_set_error (bfd_error_wrong_format
);
967 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
968 stringbase
= ((char *) rbase
969 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
970 + BSD_STRING_COUNT_SIZE
);
971 amt
= ardata
->symdef_count
* sizeof (carsym
);
972 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
973 if (!ardata
->symdefs
)
976 for (counter
= 0, set
= ardata
->symdefs
;
977 counter
< ardata
->symdef_count
;
978 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
980 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
981 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
984 ardata
->first_file_filepos
= bfd_tell (abfd
);
985 /* Pad to an even boundary if you have to. */
986 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
987 /* FIXME, we should provide some way to free raw_ardata when
988 we are done using the strings from it. For now, it seems
989 to be allocated on an objalloc anyway... */
990 bfd_has_map (abfd
) = TRUE
;
994 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
998 do_slurp_coff_armap (bfd
*abfd
)
1000 struct areltdata
*mapdata
;
1001 int *raw_armap
, *rawptr
;
1002 struct artdata
*ardata
= bfd_ardata (abfd
);
1004 bfd_size_type stringsize
;
1005 bfd_size_type parsed_size
;
1007 bfd_size_type nsymz
; /* Number of symbols in armap. */
1008 bfd_vma (*swap
) (const void *);
1009 char int_buf
[sizeof (long)];
1010 bfd_size_type carsym_size
, ptrsize
;
1013 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1014 if (mapdata
== NULL
)
1016 parsed_size
= mapdata
->parsed_size
;
1019 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1021 if (bfd_get_error () != bfd_error_system_call
)
1022 bfd_set_error (bfd_error_malformed_archive
);
1025 /* It seems that all numeric information in a coff archive is always
1026 in big endian format, nomatter the host or target. */
1028 nsymz
= bfd_getb32 (int_buf
);
1029 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1031 /* ... except that some archive formats are broken, and it may be our
1032 fault - the i960 little endian coff sometimes has big and sometimes
1033 little, because our tools changed. Here's a horrible hack to clean
1036 if (stringsize
> 0xfffff
1037 && bfd_get_arch (abfd
) == bfd_arch_i960
1038 && bfd_get_flavour (abfd
) == bfd_target_coff_flavour
)
1040 /* This looks dangerous, let's do it the other way around. */
1041 nsymz
= bfd_getl32 (int_buf
);
1042 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1046 /* The coff armap must be read sequentially. So we construct a
1047 bsd-style one in core all at once, for simplicity. */
1049 if (nsymz
> ~ (bfd_size_type
) 0 / sizeof (carsym
))
1052 carsym_size
= (nsymz
* sizeof (carsym
));
1053 ptrsize
= (4 * nsymz
);
1055 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1058 ardata
->symdefs
= (struct carsym
*) bfd_zalloc (abfd
,
1059 carsym_size
+ stringsize
+ 1);
1060 if (ardata
->symdefs
== NULL
)
1062 carsyms
= ardata
->symdefs
;
1063 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1065 /* Allocate and read in the raw offsets. */
1066 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
1067 if (raw_armap
== NULL
)
1068 goto release_symdefs
;
1069 if (bfd_bread (raw_armap
, ptrsize
, abfd
) != ptrsize
1070 || (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
))
1072 if (bfd_get_error () != bfd_error_system_call
)
1073 bfd_set_error (bfd_error_malformed_archive
);
1074 goto release_raw_armap
;
1077 /* OK, build the carsyms. */
1078 for (i
= 0; i
< nsymz
&& stringsize
> 0; i
++)
1082 rawptr
= raw_armap
+ i
;
1083 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1084 carsyms
->name
= stringbase
;
1085 /* PR 17512: file: 4a1d50c1. */
1086 len
= strnlen (stringbase
, stringsize
);
1087 if (len
< stringsize
)
1095 ardata
->symdef_count
= nsymz
;
1096 ardata
->first_file_filepos
= bfd_tell (abfd
);
1097 /* Pad to an even boundary if you have to. */
1098 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1100 bfd_has_map (abfd
) = TRUE
;
1101 bfd_release (abfd
, raw_armap
);
1103 /* Check for a second archive header (as used by PE). */
1105 struct areltdata
*tmp
;
1107 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
1108 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1111 if (tmp
->arch_header
[0] == '/'
1112 && tmp
->arch_header
[1] == ' ')
1114 ardata
->first_file_filepos
+=
1115 (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1124 bfd_release (abfd
, raw_armap
);
1126 bfd_release (abfd
, (ardata
)->symdefs
);
1130 /* This routine can handle either coff-style or bsd-style armaps
1131 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1134 bfd_slurp_armap (bfd
*abfd
)
1137 int i
= bfd_bread (nextname
, 16, abfd
);
1144 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1147 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1148 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1149 return do_slurp_bsd_armap (abfd
);
1150 else if (CONST_STRNEQ (nextname
, "/ "))
1151 return do_slurp_coff_armap (abfd
);
1152 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1154 /* 64bit (Irix 6) archive. */
1156 return _bfd_archive_64_bit_slurp_armap (abfd
);
1158 bfd_set_error (bfd_error_wrong_format
);
1162 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1164 /* Mach-O has a special name for armap when the map is sorted by name.
1165 However because this name has a space it is slightly more difficult
1170 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1172 /* Read the extended name. We know its length. */
1173 if (bfd_bread (extname
, 20, abfd
) != 20)
1175 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1178 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1179 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1180 return do_slurp_bsd_armap (abfd
);
1183 bfd_has_map (abfd
) = FALSE
;
1187 /* Returns FALSE on error, TRUE otherwise. */
1188 /* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
1189 header is in a slightly different order and the map name is '/'.
1190 This flavour is used by hp300hpux. */
1192 #define HPUX_SYMDEF_COUNT_SIZE 2
1195 bfd_slurp_bsd_armap_f2 (bfd
*abfd
)
1197 struct areltdata
*mapdata
;
1199 unsigned int counter
;
1200 bfd_byte
*raw_armap
, *rbase
;
1201 struct artdata
*ardata
= bfd_ardata (abfd
);
1203 unsigned int stringsize
;
1207 int i
= bfd_bread (nextname
, 16, abfd
);
1214 /* The archive has at least 16 bytes in it. */
1215 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1218 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1219 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1220 return do_slurp_bsd_armap (abfd
);
1222 if (! CONST_STRNEQ (nextname
, "/ "))
1224 bfd_has_map (abfd
) = FALSE
;
1228 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1229 if (mapdata
== NULL
)
1232 if (mapdata
->parsed_size
< HPUX_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
1236 bfd_set_error (bfd_error_wrong_format
);
1240 left
= mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
- BSD_STRING_COUNT_SIZE
;
1242 amt
= mapdata
->parsed_size
;
1245 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, amt
);
1246 if (raw_armap
== NULL
)
1249 if (bfd_bread (raw_armap
, amt
, abfd
) != amt
)
1251 if (bfd_get_error () != bfd_error_system_call
)
1252 bfd_set_error (bfd_error_malformed_archive
);
1256 ardata
->symdef_count
= H_GET_16 (abfd
, raw_armap
);
1260 stringsize
= H_GET_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1261 if (stringsize
> left
)
1265 /* Skip sym count and string sz. */
1266 stringbase
= ((char *) raw_armap
1267 + HPUX_SYMDEF_COUNT_SIZE
1268 + BSD_STRING_COUNT_SIZE
);
1269 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1270 amt
= ardata
->symdef_count
* BSD_SYMDEF_SIZE
;
1274 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1275 if (!ardata
->symdefs
)
1278 for (counter
= 0, set
= ardata
->symdefs
;
1279 counter
< ardata
->symdef_count
;
1280 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1282 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
1283 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1286 ardata
->first_file_filepos
= bfd_tell (abfd
);
1287 /* Pad to an even boundary if you have to. */
1288 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1289 /* FIXME, we should provide some way to free raw_ardata when
1290 we are done using the strings from it. For now, it seems
1291 to be allocated on an objalloc anyway... */
1292 bfd_has_map (abfd
) = TRUE
;
1296 /** Extended name table.
1298 Normally archives support only 14-character filenames.
1300 Intel has extended the format: longer names are stored in a special
1301 element (the first in the archive, or second if there is an armap);
1302 the name in the ar_hdr is replaced by <space><index into filename
1303 element>. Index is the P.R. of an int (decimal). Data General have
1304 extended the format by using the prefix // for the special element. */
1306 /* Returns FALSE on error, TRUE otherwise. */
1309 _bfd_slurp_extended_name_table (bfd
*abfd
)
1312 struct areltdata
*namedata
;
1315 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1316 we probably don't want to return TRUE. */
1317 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1320 if (bfd_bread (nextname
, 16, abfd
) == 16)
1322 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1325 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1326 && ! CONST_STRNEQ (nextname
, "// "))
1328 bfd_ardata (abfd
)->extended_names
= NULL
;
1329 bfd_ardata (abfd
)->extended_names_size
= 0;
1333 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1334 if (namedata
== NULL
)
1337 amt
= namedata
->parsed_size
;
1341 bfd_ardata (abfd
)->extended_names_size
= amt
;
1342 bfd_ardata (abfd
)->extended_names
= (char *) bfd_zalloc (abfd
, amt
+ 1);
1343 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1347 bfd_ardata (abfd
)->extended_names
= NULL
;
1348 bfd_ardata (abfd
)->extended_names_size
= 0;
1352 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1354 if (bfd_get_error () != bfd_error_system_call
)
1355 bfd_set_error (bfd_error_malformed_archive
);
1356 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1357 bfd_ardata (abfd
)->extended_names
= NULL
;
1361 /* Since the archive is supposed to be printable if it contains
1362 text, the entries in the list are newline-padded, not null
1363 padded. In SVR4-style archives, the names also have a
1364 trailing '/'. DOS/NT created archive often have \ in them
1365 We'll fix all problems here. */
1367 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1368 char *temp
= ext_names
;
1369 char *limit
= temp
+ namedata
->parsed_size
;
1371 for (; temp
< limit
; ++temp
)
1373 if (*temp
== ARFMAG
[1])
1374 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1381 /* Pad to an even boundary if you have to. */
1382 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1383 bfd_ardata (abfd
)->first_file_filepos
+=
1384 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1393 /* Return a copy of the stuff in the filename between any :]> and a
1397 normalize (bfd
*abfd
, const char *file
)
1403 first
= file
+ strlen (file
) - 1;
1406 while (first
!= file
)
1410 if (*first
== ':' || *first
== ']' || *first
== '>')
1418 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1422 memcpy (copy
, first
, last
- first
);
1423 copy
[last
- first
] = 0;
1430 normalize (bfd
*abfd ATTRIBUTE_UNUSED
, const char *file
)
1432 return lbasename (file
);
1436 /* Adjust a relative path name based on the reference path.
1439 Relative path Reference path Result
1440 ------------- -------------- ------
1442 foo/bar.o lib.a foo/bar.o
1443 bar.o foo/lib.a ../bar.o
1444 foo/bar.o baz/lib.a ../foo/bar.o
1445 bar.o ../lib.a <parent of current dir>/bar.o
1446 ; ../bar.o ../lib.a bar.o
1447 ; ../bar.o lib.a ../bar.o
1448 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1449 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1450 bar.o foo/baz/lib.a ../../bar.o
1452 Note - the semicolons above are there to prevent the BFD chew
1453 utility from interpreting those lines as prototypes to put into
1454 the autogenerated bfd.h header...
1456 Note - the string is returned in a static buffer. */
1459 adjust_relative_path (const char * path
, const char * ref_path
)
1461 static char *pathbuf
= NULL
;
1462 static unsigned int pathbuf_len
= 0;
1468 unsigned int dir_up
= 0;
1469 unsigned int dir_down
= 0;
1471 char * pwd
= getpwd ();
1474 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1475 lpath
= lrealpath (path
);
1476 pathp
= lpath
== NULL
? path
: lpath
;
1478 rpath
= lrealpath (ref_path
);
1479 refp
= rpath
== NULL
? ref_path
: rpath
;
1481 /* Remove common leading path elements. */
1484 const char *e1
= pathp
;
1485 const char *e2
= refp
;
1487 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1489 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1491 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1492 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1498 len
= strlen (pathp
) + 1;
1499 /* For each leading path element in the reference path,
1500 insert "../" into the path. */
1501 for (; *refp
; ++refp
)
1502 if (IS_DIR_SEPARATOR (*refp
))
1504 /* PR 12710: If the path element is "../" then instead of
1505 inserting "../" we need to insert the name of the directory
1506 at the current level. */
1507 if (refp
> ref_path
+ 1
1515 /* If the lrealpath calls above succeeded then we should never
1516 see dir_up and dir_down both being non-zero. */
1522 down
= pwd
+ strlen (pwd
) - 1;
1524 while (dir_down
&& down
> pwd
)
1526 if (IS_DIR_SEPARATOR (*down
))
1529 BFD_ASSERT (dir_down
== 0);
1530 len
+= strlen (down
) + 1;
1535 if (len
> pathbuf_len
)
1537 if (pathbuf
!= NULL
)
1540 pathbuf
= (char *) bfd_malloc (len
);
1541 if (pathbuf
== NULL
)
1547 while (dir_up
-- > 0)
1549 /* FIXME: Support Windows style path separators as well. */
1550 strcpy (newp
, "../");
1555 sprintf (newp
, "%s/%s", down
, pathp
);
1557 strcpy (newp
, pathp
);
1565 /* Build a BFD style extended name table. */
1568 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1570 bfd_size_type
*tablen
,
1573 *name
= "ARFILENAMES/";
1574 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1577 /* Build an SVR4 style extended name table. */
1580 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1582 bfd_size_type
*tablen
,
1586 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1589 /* Follows archive_head and produces an extended name table if
1590 necessary. Returns (in tabloc) a pointer to an extended name
1591 table, and in tablen the length of the table. If it makes an entry
1592 it clobbers the filename so that the element may be written without
1593 further massage. Returns TRUE if it ran successfully, FALSE if
1594 something went wrong. A successful return may still involve a
1595 zero-length tablen! */
1598 _bfd_construct_extended_name_table (bfd
*abfd
,
1599 bfd_boolean trailing_slash
,
1601 bfd_size_type
*tablen
)
1603 unsigned int maxname
= ar_maxnamelen (abfd
);
1604 bfd_size_type total_namelen
= 0;
1607 const char *last_filename
;
1611 last_filename
= NULL
;
1613 /* Figure out how long the table should be. */
1614 for (current
= abfd
->archive_head
;
1616 current
= current
->archive_next
)
1619 unsigned int thislen
;
1621 if (bfd_is_thin_archive (abfd
))
1623 const char *filename
= current
->filename
;
1625 /* If the element being added is a member of another archive
1626 (i.e., we are flattening), use the containing archive's name. */
1627 if (current
->my_archive
1628 && ! bfd_is_thin_archive (current
->my_archive
))
1629 filename
= current
->my_archive
->filename
;
1631 /* If the path is the same as the previous path seen,
1632 reuse it. This can happen when flattening a thin
1633 archive that contains other archives. */
1634 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1637 last_filename
= filename
;
1639 /* If the path is relative, adjust it relative to
1640 the containing archive. */
1641 if (! IS_ABSOLUTE_PATH (filename
)
1642 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1643 normal
= adjust_relative_path (filename
, abfd
->filename
);
1647 /* In a thin archive, always store the full pathname
1648 in the extended name table. */
1649 total_namelen
+= strlen (normal
) + 1;
1651 /* Leave room for trailing slash. */
1657 normal
= normalize (current
, current
->filename
);
1661 thislen
= strlen (normal
);
1663 if (thislen
> maxname
1664 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1667 if (thislen
> maxname
)
1669 /* Add one to leave room for \n. */
1670 total_namelen
+= thislen
+ 1;
1673 /* Leave room for trailing slash. */
1679 struct ar_hdr
*hdr
= arch_hdr (current
);
1680 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1681 || (thislen
< sizeof hdr
->ar_name
1682 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1684 /* Must have been using extended format even though it
1685 didn't need to. Fix it to use normal format. */
1686 memcpy (hdr
->ar_name
, normal
, thislen
);
1687 if (thislen
< maxname
1688 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1689 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1694 if (total_namelen
== 0)
1697 *tabloc
= (char *) bfd_zalloc (abfd
, total_namelen
);
1698 if (*tabloc
== NULL
)
1701 *tablen
= total_namelen
;
1704 last_filename
= NULL
;
1707 for (current
= abfd
->archive_head
;
1709 current
= current
->archive_next
)
1712 unsigned int thislen
;
1714 const char *filename
= current
->filename
;
1716 if (bfd_is_thin_archive (abfd
))
1718 /* If the element being added is a member of another archive
1719 (i.e., we are flattening), use the containing archive's name. */
1720 if (current
->my_archive
1721 && ! bfd_is_thin_archive (current
->my_archive
))
1722 filename
= current
->my_archive
->filename
;
1723 /* If the path is the same as the previous path seen,
1724 reuse it. This can happen when flattening a thin
1725 archive that contains other archives.
1726 If the path is relative, adjust it relative to
1727 the containing archive. */
1728 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1729 normal
= last_filename
;
1730 else if (! IS_ABSOLUTE_PATH (filename
)
1731 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1732 normal
= adjust_relative_path (filename
, abfd
->filename
);
1738 normal
= normalize (current
, filename
);
1743 thislen
= strlen (normal
);
1744 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1746 /* Works for now; may need to be re-engineered if we
1747 encounter an oddball archive format and want to
1748 generalise this hack. */
1749 struct ar_hdr
*hdr
= arch_hdr (current
);
1750 if (normal
== last_filename
)
1751 stroff
= last_stroff
;
1754 strcpy (strptr
, normal
);
1755 if (! trailing_slash
)
1756 strptr
[thislen
] = ARFMAG
[1];
1759 strptr
[thislen
] = '/';
1760 strptr
[thislen
+ 1] = ARFMAG
[1];
1762 stroff
= strptr
- *tabloc
;
1763 last_stroff
= stroff
;
1765 hdr
->ar_name
[0] = ar_padchar (current
);
1766 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1768 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1770 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1772 current
->origin
- sizeof (struct ar_hdr
));
1775 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1776 if (normal
!= last_filename
)
1778 strptr
+= thislen
+ 1;
1781 last_filename
= filename
;
1789 /* Do not construct an extended name table but transforms name field into
1790 its extended form. */
1793 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1795 bfd_size_type
*tablen
,
1798 unsigned int maxname
= ar_maxnamelen (abfd
);
1805 for (current
= abfd
->archive_head
;
1807 current
= current
->archive_next
)
1809 const char *normal
= normalize (current
, current
->filename
);
1816 for (len
= 0; normal
[len
]; len
++)
1817 if (normal
[len
] == ' ')
1820 if (len
> maxname
|| has_space
)
1822 struct ar_hdr
*hdr
= arch_hdr (current
);
1824 len
= (len
+ 3) & ~3;
1825 arch_eltdata (current
)->extra_size
= len
;
1826 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1833 /* Write an archive header. */
1836 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1838 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1840 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1845 /* Write an archive header using BSD4.4 convention. */
1848 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1850 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1852 if (is_bsd44_extended_name (hdr
->ar_name
))
1854 /* This is a BSD 4.4 extended name. */
1855 const char *fullname
= normalize (abfd
, abfd
->filename
);
1856 unsigned int len
= strlen (fullname
);
1857 unsigned int padded_len
= (len
+ 3) & ~3;
1859 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1861 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1862 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1865 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1868 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1873 static const char pad
[3] = { 0, 0, 0 };
1875 len
= 4 - (len
& 3);
1876 if (bfd_bwrite (pad
, len
, archive
) != len
)
1882 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1888 /* A couple of functions for creating ar_hdrs. */
1890 #ifdef HPUX_LARGE_AR_IDS
1891 /* Function to encode large UID/GID values according to HP. */
1894 hpux_uid_gid_encode (char str
[6], long int id
)
1898 str
[5] = '@' + (id
& 3);
1901 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1902 str
[cnt
] = ' ' + (id
& 0x3f);
1904 #endif /* HPUX_LARGE_AR_IDS */
1914 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1915 make one. The filename must refer to a filename in the filesystem.
1916 The filename field of the ar_hdr will NOT be initialized. If member
1917 is set, and it's an in-memory bfd, we fake it. */
1919 static struct areltdata
*
1920 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1923 struct areltdata
*ared
;
1927 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1929 /* Assume we just "made" the member, and fake it. */
1930 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1931 time (&status
.st_mtime
);
1932 status
.st_uid
= getuid ();
1933 status
.st_gid
= getgid ();
1934 status
.st_mode
= 0644;
1935 status
.st_size
= bim
->size
;
1937 else if (stat (filename
, &status
) != 0)
1939 bfd_set_error (bfd_error_system_call
);
1943 /* If the caller requested that the BFD generate deterministic output,
1944 fake values for modification time, UID, GID, and file mode. */
1945 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1947 status
.st_mtime
= 0;
1950 status
.st_mode
= 0644;
1953 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1954 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1957 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1959 /* ar headers are space padded, not null padded! */
1960 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1962 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1964 #ifdef HPUX_LARGE_AR_IDS
1965 /* HP has a very "special" way to handle UID/GID's with numeric values
1967 if (status
.st_uid
> 99999)
1968 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1971 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1973 #ifdef HPUX_LARGE_AR_IDS
1974 /* HP has a very "special" way to handle UID/GID's with numeric values
1976 if (status
.st_gid
> 99999)
1977 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1980 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1982 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1984 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1986 bfd_set_error (bfd_error_file_too_big
);
1990 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1995 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1996 ared
->parsed_size
= status
.st_size
;
1997 ared
->arch_header
= (char *) hdr
;
2002 /* Analogous to stat call. */
2005 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
2010 if (abfd
->arelt_data
== NULL
)
2012 bfd_set_error (bfd_error_invalid_operation
);
2016 hdr
= arch_hdr (abfd
);
2017 /* PR 17512: file: 3d9e9fe9. */
2020 #define foo(arelt, stelt, size) \
2021 buf->stelt = strtol (hdr->arelt, &aloser, size); \
2022 if (aloser == hdr->arelt) \
2025 /* Some platforms support special notations for large IDs. */
2026 #ifdef HPUX_LARGE_AR_IDS
2027 # define foo2(arelt, stelt, size) \
2028 if (hdr->arelt[5] == ' ') \
2030 foo (arelt, stelt, size); \
2035 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
2037 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
2040 buf->stelt += hdr->arelt[cnt] - ' '; \
2042 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
2045 buf->stelt += hdr->arelt[5] - '@'; \
2048 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
2051 foo (ar_date
, st_mtime
, 10);
2052 foo2 (ar_uid
, st_uid
, 10);
2053 foo2 (ar_gid
, st_gid
, 10);
2054 foo (ar_mode
, st_mode
, 8);
2056 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
2062 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2064 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2065 Fortunately ic960 users will never use that option. Fixing this
2066 is very hard; fortunately I know how to do it and will do so once
2067 intel's release is out the door. */
2069 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2071 const char *filename
;
2072 size_t maxlen
= ar_maxnamelen (abfd
);
2074 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2076 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2080 filename
= normalize (abfd
, pathname
);
2081 if (filename
== NULL
)
2087 length
= strlen (filename
);
2089 if (length
<= maxlen
)
2090 memcpy (hdr
->ar_name
, filename
, length
);
2092 /* Add the padding character if there is room for it. */
2094 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2095 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2099 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2101 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2103 const char *filename
= lbasename (pathname
);
2104 size_t maxlen
= ar_maxnamelen (abfd
);
2106 length
= strlen (filename
);
2108 if (length
<= maxlen
)
2109 memcpy (hdr
->ar_name
, filename
, length
);
2112 /* pathname: meet procrustes */
2113 memcpy (hdr
->ar_name
, filename
, maxlen
);
2117 if (length
< maxlen
)
2118 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2121 /* Store name into ar header. Truncates the name to fit.
2122 1> strip pathname to be just the basename.
2123 2> if it's short enuf to fit, stuff it in.
2124 3> If it doesn't end with .o, truncate it to fit
2125 4> truncate it before the .o, append .o, stuff THAT in. */
2127 /* This is what gnu ar does. It's better but incompatible with the
2131 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2133 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2135 const char *filename
= lbasename (pathname
);
2136 size_t maxlen
= ar_maxnamelen (abfd
);
2138 length
= strlen (filename
);
2140 if (length
<= maxlen
)
2141 memcpy (hdr
->ar_name
, filename
, length
);
2144 /* pathname: meet procrustes. */
2145 memcpy (hdr
->ar_name
, filename
, maxlen
);
2146 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2148 hdr
->ar_name
[maxlen
- 2] = '.';
2149 hdr
->ar_name
[maxlen
- 1] = 'o';
2155 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2158 /* The BFD is open for write and has its format set to bfd_archive. */
2161 _bfd_write_archive_contents (bfd
*arch
)
2164 char *etable
= NULL
;
2165 bfd_size_type elength
= 0;
2166 const char *ename
= NULL
;
2167 bfd_boolean makemap
= bfd_has_map (arch
);
2168 /* If no .o's, don't bother to make a map. */
2169 bfd_boolean hasobjects
= FALSE
;
2170 bfd_size_type wrote
;
2174 /* Verify the viability of all entries; if any of them live in the
2175 filesystem (as opposed to living in an archive open for input)
2176 then construct a fresh ar_hdr for them. */
2177 for (current
= arch
->archive_head
;
2179 current
= current
->archive_next
)
2181 /* This check is checking the bfds for the objects we're reading
2182 from (which are usually either an object file or archive on
2183 disk), not the archive entries we're writing to. We don't
2184 actually create bfds for the archive members, we just copy
2185 them byte-wise when we write out the archive. */
2186 if (bfd_write_p (current
))
2188 bfd_set_error (bfd_error_invalid_operation
);
2191 if (!current
->arelt_data
)
2193 current
->arelt_data
=
2194 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2195 if (!current
->arelt_data
)
2198 /* Put in the file name. */
2199 BFD_SEND (arch
, _bfd_truncate_arname
,
2200 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2203 if (makemap
&& ! hasobjects
)
2204 { /* Don't bother if we won't make a map! */
2205 if ((bfd_check_format (current
, bfd_object
)))
2210 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2211 (arch
, &etable
, &elength
, &ename
)))
2214 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2217 if (bfd_is_thin_archive (arch
))
2219 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2220 if (wrote
!= SARMAG
)
2223 if (makemap
&& hasobjects
)
2225 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2233 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2234 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2235 /* Round size up to even number in archive header. */
2236 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2237 (elength
+ 1) & ~(bfd_size_type
) 1))
2239 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2240 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2241 != sizeof (struct ar_hdr
))
2242 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2244 if ((elength
% 2) == 1)
2246 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2251 for (current
= arch
->archive_head
;
2253 current
= current
->archive_next
)
2255 char buffer
[DEFAULT_BUFFERSIZE
];
2256 bfd_size_type remaining
= arelt_size (current
);
2258 /* Write ar header. */
2259 if (!_bfd_write_ar_hdr (arch
, current
))
2261 if (bfd_is_thin_archive (arch
))
2263 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2268 unsigned int amt
= DEFAULT_BUFFERSIZE
;
2270 if (amt
> remaining
)
2273 if (bfd_bread (buffer
, amt
, current
) != amt
)
2275 if (bfd_get_error () != bfd_error_system_call
)
2276 bfd_set_error (bfd_error_file_truncated
);
2279 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2284 if ((arelt_size (current
) % 2) == 1)
2286 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2291 if (makemap
&& hasobjects
)
2293 /* Verify the timestamp in the archive file. If it would not be
2294 accepted by the linker, rewrite it until it would be. If
2295 anything odd happens, break out and just return. (The
2296 Berkeley linker checks the timestamp and refuses to read the
2297 table-of-contents if it is >60 seconds less than the file's
2298 modified-time. That painful hack requires this painful hack. */
2302 if (bfd_update_armap_timestamp (arch
))
2305 (_("Warning: writing archive was slow: rewriting timestamp\n"));
2307 while (++tries
< 6);
2313 bfd_set_input_error (current
, bfd_get_error ());
2317 /* Note that the namidx for the first symbol is 0. */
2320 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2322 char *first_name
= NULL
;
2324 file_ptr elt_no
= 0;
2325 struct orl
*map
= NULL
;
2326 unsigned int orl_max
= 1024; /* Fine initial default. */
2327 unsigned int orl_count
= 0;
2329 asymbol
**syms
= NULL
;
2334 /* Dunno if this is the best place for this info... */
2336 elength
+= sizeof (struct ar_hdr
);
2337 elength
+= elength
% 2;
2339 amt
= orl_max
* sizeof (struct orl
);
2340 map
= (struct orl
*) bfd_malloc (amt
);
2344 /* We put the symbol names on the arch objalloc, and then discard
2346 first_name
= (char *) bfd_alloc (arch
, 1);
2347 if (first_name
== NULL
)
2350 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2351 while (arch
->archive_head
2352 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2353 arch
->archive_head
= arch
->archive_head
->archive_next
;
2355 /* Map over each element. */
2356 for (current
= arch
->archive_head
;
2358 current
= current
->archive_next
, elt_no
++)
2360 if (bfd_check_format (current
, bfd_object
)
2361 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2367 storage
= bfd_get_symtab_upper_bound (current
);
2373 if (storage
> syms_max
)
2378 syms
= (asymbol
**) bfd_malloc (syms_max
);
2382 symcount
= bfd_canonicalize_symtab (current
, syms
);
2386 /* Now map over all the symbols, picking out the ones we
2388 for (src_count
= 0; src_count
< symcount
; src_count
++)
2390 flagword flags
= (syms
[src_count
])->flags
;
2391 asection
*sec
= syms
[src_count
]->section
;
2393 if (((flags
& (BSF_GLOBAL
2396 | BSF_GNU_UNIQUE
)) != 0
2397 || bfd_is_com_section (sec
))
2398 && ! bfd_is_und_section (sec
))
2400 bfd_size_type namelen
;
2401 struct orl
*new_map
;
2403 /* This symbol will go into the archive header. */
2404 if (orl_count
== orl_max
)
2407 amt
= orl_max
* sizeof (struct orl
);
2408 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2409 if (new_map
== NULL
)
2415 if (syms
[src_count
]->name
[0] == '_'
2416 && syms
[src_count
]->name
[1] == '_'
2417 && strcmp (syms
[src_count
]->name
2418 + (syms
[src_count
]->name
[2] == '_'),
2419 "__gnu_lto_slim") == 0)
2421 (_("%B: plugin needed to handle lto object"),
2423 namelen
= strlen (syms
[src_count
]->name
);
2424 amt
= sizeof (char *);
2425 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2426 if (map
[orl_count
].name
== NULL
)
2428 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2430 if (*(map
[orl_count
].name
) == NULL
)
2432 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2433 map
[orl_count
].u
.abfd
= current
;
2434 map
[orl_count
].namidx
= stridx
;
2436 stridx
+= namelen
+ 1;
2442 /* Now ask the BFD to free up any cached information, so we
2443 don't fill all of memory with symbol tables. */
2444 if (! bfd_free_cached_info (current
))
2449 /* OK, now we have collected all the data, let's write them out. */
2450 ret
= BFD_SEND (arch
, write_armap
,
2451 (arch
, elength
, map
, orl_count
, stridx
));
2457 if (first_name
!= NULL
)
2458 bfd_release (arch
, first_name
);
2467 if (first_name
!= NULL
)
2468 bfd_release (arch
, first_name
);
2474 _bfd_bsd_write_armap (bfd
*arch
,
2475 unsigned int elength
,
2477 unsigned int orl_count
,
2480 int padit
= stridx
& 1;
2481 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2482 unsigned int stringsize
= stridx
+ padit
;
2483 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2484 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2485 file_ptr firstreal
, first
;
2493 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2497 current
= arch
->archive_head
;
2498 last_elt
= current
; /* Last element arch seen. */
2499 for (count
= 0; count
< orl_count
; count
++)
2501 unsigned int offset
;
2503 if (map
[count
].u
.abfd
!= last_elt
)
2507 struct areltdata
*ared
= arch_eltdata (current
);
2509 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2510 + sizeof (struct ar_hdr
));
2511 firstreal
+= firstreal
% 2;
2512 current
= current
->archive_next
;
2514 while (current
!= map
[count
].u
.abfd
);
2517 /* The archive file format only has 4 bytes to store the offset
2518 of the member. Generate 64-bit archive if an archive is past
2520 offset
= (unsigned int) firstreal
;
2521 if (firstreal
!= (file_ptr
) offset
)
2522 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2529 /* If deterministic, we use 0 as the timestamp in the map.
2530 Some linkers may require that the archive filesystem modification
2531 time is less than (or near to) the archive map timestamp. Those
2532 linkers should not be used with deterministic mode. (GNU ld and
2533 Gold do not have this restriction.) */
2534 bfd_ardata (arch
)->armap_timestamp
= 0;
2537 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2539 struct stat statbuf
;
2541 if (stat (arch
->filename
, &statbuf
) == 0)
2542 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2543 + ARMAP_TIME_OFFSET
);
2548 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2549 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2550 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2551 + offsetof (struct ar_hdr
, ar_date
[0]));
2552 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2553 bfd_ardata (arch
)->armap_timestamp
);
2554 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2555 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2556 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2558 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2559 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2560 != sizeof (struct ar_hdr
))
2562 H_PUT_32 (arch
, ranlibsize
, temp
);
2563 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2567 current
= arch
->archive_head
;
2568 last_elt
= current
; /* Last element arch seen. */
2569 for (count
= 0; count
< orl_count
; count
++)
2571 unsigned int offset
;
2572 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2574 if (map
[count
].u
.abfd
!= last_elt
)
2578 struct areltdata
*ared
= arch_eltdata (current
);
2580 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2581 + sizeof (struct ar_hdr
));
2582 firstreal
+= firstreal
% 2;
2583 current
= current
->archive_next
;
2585 while (current
!= map
[count
].u
.abfd
);
2588 /* The archive file format only has 4 bytes to store the offset
2589 of the member. Check to make sure that firstreal has not grown
2591 offset
= (unsigned int) firstreal
;
2592 if (firstreal
!= (file_ptr
) offset
)
2594 bfd_set_error (bfd_error_file_truncated
);
2599 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2600 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2601 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2606 /* Now write the strings themselves. */
2607 H_PUT_32 (arch
, stringsize
, temp
);
2608 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2610 for (count
= 0; count
< orl_count
; count
++)
2612 size_t len
= strlen (*map
[count
].name
) + 1;
2614 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2618 /* The spec sez this should be a newline. But in order to be
2619 bug-compatible for sun's ar we use a null. */
2622 if (bfd_bwrite ("", 1, arch
) != 1)
2629 /* At the end of archive file handling, update the timestamp in the
2630 file, so the linker will accept it.
2632 Return TRUE if the timestamp was OK, or an unusual problem happened.
2633 Return FALSE if we updated the timestamp. */
2636 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2638 struct stat archstat
;
2641 /* If creating deterministic archives, just leave the timestamp as-is. */
2642 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2645 /* Flush writes, get last-write timestamp from file, and compare it
2646 to the timestamp IN the file. */
2648 if (bfd_stat (arch
, &archstat
) == -1)
2650 bfd_perror (_("Reading archive file mod timestamp"));
2652 /* Can't read mod time for some reason. */
2655 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2656 /* OK by the linker's rules. */
2659 /* Update the timestamp. */
2660 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2662 /* Prepare an ASCII version suitable for writing. */
2663 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2664 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2665 bfd_ardata (arch
)->armap_timestamp
);
2667 /* Write it into the file. */
2668 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2669 + offsetof (struct ar_hdr
, ar_date
[0]));
2670 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2671 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2672 != sizeof (hdr
.ar_date
)))
2674 bfd_perror (_("Writing updated armap timestamp"));
2676 /* Some error while writing. */
2680 /* We updated the timestamp successfully. */
2684 /* A coff armap looks like :
2686 struct ar_hdr with name = '/'
2688 offset of file for symbol 0
2689 offset of file for symbol 1
2691 offset of file for symbol n-1
2698 _bfd_coff_write_armap (bfd
*arch
,
2699 unsigned int elength
,
2701 unsigned int symbol_count
,
2704 /* The size of the ranlib is the number of exported symbols in the
2705 archive * the number of bytes in an int, + an int for the count. */
2706 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2707 unsigned int stringsize
= stridx
;
2708 unsigned int mapsize
= stringsize
+ ranlibsize
;
2709 file_ptr archive_member_file_ptr
;
2710 file_ptr first_archive_member_file_ptr
;
2711 bfd
*current
= arch
->archive_head
;
2714 int padit
= mapsize
& 1;
2719 /* Work out where the first object file will go in the archive. */
2720 first_archive_member_file_ptr
= (mapsize
2722 + sizeof (struct ar_hdr
)
2726 current
= arch
->archive_head
;
2728 archive_member_file_ptr
= first_archive_member_file_ptr
;
2729 while (current
!= NULL
&& count
< symbol_count
)
2731 /* For each symbol which is used defined in this object, write
2732 out the object file's address in the archive. */
2734 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2736 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2738 /* Generate 64-bit archive if an archive is past its 4Gb
2740 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2741 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2742 symbol_count
, stridx
);
2745 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2746 if (! bfd_is_thin_archive (arch
))
2748 /* Add size of this archive entry. */
2749 archive_member_file_ptr
+= arelt_size (current
);
2750 /* Remember about the even alignment. */
2751 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2753 current
= current
->archive_next
;
2757 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2758 hdr
.ar_name
[0] = '/';
2759 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2761 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2762 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2763 ? time (NULL
) : 0));
2764 /* This, at least, is what Intel coff sets the values to. */
2765 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2766 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2767 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2768 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2770 /* Write the ar header for this item and the number of symbols. */
2771 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2772 != sizeof (struct ar_hdr
))
2775 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2778 /* Two passes, first write the file offsets for each symbol -
2779 remembering that each offset is on a two byte boundary. */
2781 /* Write out the file offset for the file associated with each
2782 symbol, and remember to keep the offsets padded out. */
2784 current
= arch
->archive_head
;
2786 archive_member_file_ptr
= first_archive_member_file_ptr
;
2787 while (current
!= NULL
&& count
< symbol_count
)
2789 /* For each symbol which is used defined in this object, write
2790 out the object file's address in the archive. */
2792 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2794 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2796 /* Catch an attempt to grow an archive past its 4Gb limit. */
2797 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2799 bfd_set_error (bfd_error_file_truncated
);
2802 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2806 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2807 if (! bfd_is_thin_archive (arch
))
2809 /* Add size of this archive entry. */
2810 archive_member_file_ptr
+= arelt_size (current
);
2811 /* Remember about the even alignment. */
2812 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2814 current
= current
->archive_next
;
2817 /* Now write the strings themselves. */
2818 for (count
= 0; count
< symbol_count
; count
++)
2820 size_t len
= strlen (*map
[count
].name
) + 1;
2822 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2826 /* The spec sez this should be a newline. But in order to be
2827 bug-compatible for arc960 we use a null. */
2830 if (bfd_bwrite ("", 1, arch
) != 1)
2838 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2840 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2842 bfd_close_all_done (ent
->arbfd
);
2847 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2849 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2855 /* Close nested archives (if this bfd is a thin archive). */
2856 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2858 next
= nbfd
->archive_next
;
2862 htab
= bfd_ardata (abfd
)->cache
;
2865 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2867 bfd_ardata (abfd
)->cache
= NULL
;
2870 if (arch_eltdata (abfd
) != NULL
)
2872 struct areltdata
*ared
= arch_eltdata (abfd
);
2873 htab_t htab
= (htab_t
) ared
->parent_cache
;
2877 struct ar_cache ent
;
2880 ent
.ptr
= ared
->key
;
2881 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2884 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2885 htab_clear_slot (htab
, slot
);
2889 if (abfd
->is_linker_output
)
2890 (*abfd
->link
.hash
->hash_table_free
) (abfd
);