1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2020 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 size_t 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
);
696 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI
698 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
700 | BFD_COMPRESS_GABI
);
705 /* It's not an element of a nested archive;
706 open the external file as a bfd. */
707 n_bfd
= open_nested_file (filename
, archive
);
709 bfd_set_error (bfd_error_malformed_archive
);
713 n_bfd
= _bfd_create_empty_archive_element_shell (archive
);
722 n_bfd
->proxy_origin
= bfd_tell (archive
);
724 if (bfd_is_thin_archive (archive
))
730 n_bfd
->origin
= n_bfd
->proxy_origin
;
731 n_bfd
->filename
= bfd_strdup (filename
);
732 if (n_bfd
->filename
== NULL
)
736 n_bfd
->arelt_data
= new_areldata
;
738 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
739 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
741 | BFD_COMPRESS_GABI
);
743 /* Copy is_linker_input. */
744 n_bfd
->is_linker_input
= archive
->is_linker_input
;
746 if (archive
->no_element_cache
747 || _bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
752 n_bfd
->arelt_data
= NULL
;
757 /* Return the BFD which is referenced by the symbol in ABFD indexed by
758 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
761 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
765 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
766 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
770 _bfd_noarchive_get_elt_at_index (bfd
*abfd
,
771 symindex sym_index ATTRIBUTE_UNUSED
)
773 return (bfd
*) _bfd_ptr_bfd_null_error (abfd
);
778 bfd_openr_next_archived_file
781 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
784 Provided a BFD, @var{archive}, containing an archive and NULL, open
785 an input BFD on the first contained element and returns that.
786 Subsequent calls should pass the archive and the previous return
787 value to return a created BFD to the next contained element. NULL
788 is returned when there are no more.
789 Note - if you want to process the bfd returned by this call be
790 sure to call bfd_check_format() on it first.
794 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
796 if ((bfd_get_format (archive
) != bfd_archive
)
797 || (archive
->direction
== write_direction
))
799 bfd_set_error (bfd_error_invalid_operation
);
803 return BFD_SEND (archive
,
804 openr_next_archived_file
, (archive
, last_file
));
808 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
813 filestart
= bfd_ardata (archive
)->first_file_filepos
;
816 filestart
= last_file
->proxy_origin
;
817 if (! bfd_is_thin_archive (archive
))
819 bfd_size_type size
= arelt_size (last_file
);
822 /* Pad to an even boundary...
823 Note that last_file->origin can be odd in the case of
824 BSD-4.4-style element with a long odd size. */
825 filestart
+= filestart
% 2;
826 if (filestart
< last_file
->proxy_origin
)
828 /* Prevent looping. See PR19256. */
829 bfd_set_error (bfd_error_malformed_archive
);
835 return _bfd_get_elt_at_filepos (archive
, filestart
);
839 _bfd_noarchive_openr_next_archived_file (bfd
*archive
,
840 bfd
*last_file ATTRIBUTE_UNUSED
)
842 return (bfd
*) _bfd_ptr_bfd_null_error (archive
);
846 bfd_generic_archive_p (bfd
*abfd
)
848 struct artdata
*tdata_hold
;
849 char armag
[SARMAG
+ 1];
852 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
854 if (bfd_get_error () != bfd_error_system_call
)
855 bfd_set_error (bfd_error_wrong_format
);
859 bfd_set_thin_archive (abfd
, strncmp (armag
, ARMAGT
, SARMAG
) == 0);
861 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
862 && ! bfd_is_thin_archive (abfd
))
864 bfd_set_error (bfd_error_wrong_format
);
868 tdata_hold
= bfd_ardata (abfd
);
870 amt
= sizeof (struct artdata
);
871 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
872 if (bfd_ardata (abfd
) == NULL
)
874 bfd_ardata (abfd
) = tdata_hold
;
878 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
879 /* Cleared by bfd_zalloc above.
880 bfd_ardata (abfd)->cache = NULL;
881 bfd_ardata (abfd)->archive_head = NULL;
882 bfd_ardata (abfd)->symdefs = NULL;
883 bfd_ardata (abfd)->extended_names = NULL;
884 bfd_ardata (abfd)->extended_names_size = 0;
885 bfd_ardata (abfd)->tdata = NULL; */
887 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
888 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
890 if (bfd_get_error () != bfd_error_system_call
)
891 bfd_set_error (bfd_error_wrong_format
);
892 bfd_release (abfd
, bfd_ardata (abfd
));
893 bfd_ardata (abfd
) = tdata_hold
;
897 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
902 /* This archive has a map, so we may presume that the contents
903 are object files. Make sure that if the first file in the
904 archive can be recognized as an object file, it is for this
905 target. If not, assume that this is the wrong format. If
906 the first file is not an object file, somebody is doing
907 something weird, and we permit it so that ar -t will work.
909 This is done because any normal format will recognize any
910 normal archive, regardless of the format of the object files.
911 We do accept an empty archive. */
913 save
= abfd
->no_element_cache
;
914 abfd
->no_element_cache
= 1;
915 first
= bfd_openr_next_archived_file (abfd
, NULL
);
916 abfd
->no_element_cache
= save
;
919 first
->target_defaulted
= FALSE
;
920 if (bfd_check_format (first
, bfd_object
)
921 && first
->xvec
!= abfd
->xvec
)
922 bfd_set_error (bfd_error_wrong_object_format
);
930 /* Some constants for a 32 bit BSD archive structure. We do not
931 support 64 bit archives presently; so far as I know, none actually
932 exist. Supporting them would require changing these constants, and
933 changing some H_GET_32 to H_GET_64. */
935 /* The size of an external symdef structure. */
936 #define BSD_SYMDEF_SIZE 8
938 /* The offset from the start of a symdef structure to the file offset. */
939 #define BSD_SYMDEF_OFFSET_SIZE 4
941 /* The size of the symdef count. */
942 #define BSD_SYMDEF_COUNT_SIZE 4
944 /* The size of the string count. */
945 #define BSD_STRING_COUNT_SIZE 4
947 /* Read a BSD-style archive symbol table. Returns FALSE on error,
951 do_slurp_bsd_armap (bfd
*abfd
)
953 struct areltdata
*mapdata
;
954 unsigned int counter
;
955 bfd_byte
*raw_armap
, *rbase
;
956 struct artdata
*ardata
= bfd_ardata (abfd
);
958 bfd_size_type parsed_size
, amt
;
961 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
964 parsed_size
= mapdata
->parsed_size
;
966 /* PR 17512: file: 883ff754. */
967 /* PR 17512: file: 0458885f. */
971 raw_armap
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, parsed_size
, parsed_size
);
972 if (raw_armap
== NULL
)
974 if (bfd_get_error () != bfd_error_system_call
)
975 bfd_set_error (bfd_error_malformed_archive
);
979 ardata
->symdef_count
= H_GET_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
980 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
981 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
983 /* Probably we're using the wrong byte ordering. */
984 bfd_set_error (bfd_error_wrong_format
);
985 bfd_release (abfd
, raw_armap
);
989 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
990 stringbase
= ((char *) rbase
991 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
992 + BSD_STRING_COUNT_SIZE
);
993 amt
= ardata
->symdef_count
* sizeof (carsym
);
994 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
995 if (!ardata
->symdefs
)
997 bfd_release (abfd
, raw_armap
);
1001 for (counter
= 0, set
= ardata
->symdefs
;
1002 counter
< ardata
->symdef_count
;
1003 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1005 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
1006 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1009 ardata
->first_file_filepos
= bfd_tell (abfd
);
1010 /* Pad to an even boundary if you have to. */
1011 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1012 /* FIXME, we should provide some way to free raw_ardata when
1013 we are done using the strings from it. For now, it seems
1014 to be allocated on an objalloc anyway... */
1015 abfd
->has_armap
= TRUE
;
1019 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1023 do_slurp_coff_armap (bfd
*abfd
)
1025 struct areltdata
*mapdata
;
1026 int *raw_armap
, *rawptr
;
1027 struct artdata
*ardata
= bfd_ardata (abfd
);
1030 bfd_size_type stringsize
;
1031 bfd_size_type parsed_size
;
1033 bfd_size_type nsymz
; /* Number of symbols in armap. */
1034 bfd_vma (*swap
) (const void *);
1035 char int_buf
[sizeof (long)];
1036 bfd_size_type carsym_size
, ptrsize
;
1039 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1040 if (mapdata
== NULL
)
1042 parsed_size
= mapdata
->parsed_size
;
1045 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1047 if (bfd_get_error () != bfd_error_system_call
)
1048 bfd_set_error (bfd_error_malformed_archive
);
1051 /* It seems that all numeric information in a coff archive is always
1052 in big endian format, nomatter the host or target. */
1054 nsymz
= bfd_getb32 (int_buf
);
1055 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1057 /* The coff armap must be read sequentially. So we construct a
1058 bsd-style one in core all at once, for simplicity. */
1060 if (nsymz
> ~ (bfd_size_type
) 0 / sizeof (carsym
))
1062 bfd_set_error (bfd_error_no_memory
);
1066 carsym_size
= (nsymz
* sizeof (carsym
));
1067 ptrsize
= (4 * nsymz
);
1069 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1071 bfd_set_error (bfd_error_no_memory
);
1075 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
,
1076 carsym_size
+ stringsize
+ 1);
1077 if (ardata
->symdefs
== NULL
)
1079 carsyms
= ardata
->symdefs
;
1080 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1082 /* Allocate and read in the raw offsets. */
1083 raw_armap
= (int *) _bfd_alloc_and_read (abfd
, ptrsize
, ptrsize
);
1084 if (raw_armap
== NULL
1085 || (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
))
1087 if (bfd_get_error () != bfd_error_system_call
)
1088 bfd_set_error (bfd_error_malformed_archive
);
1089 goto release_symdefs
;
1092 /* OK, build the carsyms. */
1093 stringend
= stringbase
+ stringsize
;
1095 for (i
= 0; i
< nsymz
; i
++)
1097 rawptr
= raw_armap
+ i
;
1098 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1099 carsyms
->name
= stringbase
;
1100 stringbase
+= strlen (stringbase
);
1101 if (stringbase
!= stringend
)
1106 ardata
->symdef_count
= nsymz
;
1107 ardata
->first_file_filepos
= bfd_tell (abfd
);
1108 /* Pad to an even boundary if you have to. */
1109 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1111 abfd
->has_armap
= TRUE
;
1112 bfd_release (abfd
, raw_armap
);
1114 /* Check for a second archive header (as used by PE). */
1116 struct areltdata
*tmp
;
1118 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
1119 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1122 if (tmp
->arch_header
[0] == '/'
1123 && tmp
->arch_header
[1] == ' ')
1125 ardata
->first_file_filepos
+=
1126 (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1135 bfd_release (abfd
, (ardata
)->symdefs
);
1139 /* This routine can handle either coff-style or bsd-style armaps
1140 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1143 bfd_slurp_armap (bfd
*abfd
)
1146 int i
= bfd_bread (nextname
, 16, abfd
);
1153 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1156 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1157 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1158 return do_slurp_bsd_armap (abfd
);
1159 else if (CONST_STRNEQ (nextname
, "/ "))
1160 return do_slurp_coff_armap (abfd
);
1161 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1163 /* 64bit (Irix 6) archive. */
1165 return _bfd_archive_64_bit_slurp_armap (abfd
);
1167 bfd_set_error (bfd_error_wrong_format
);
1171 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1173 /* Mach-O has a special name for armap when the map is sorted by name.
1174 However because this name has a space it is slightly more difficult
1179 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1181 /* Read the extended name. We know its length. */
1182 if (bfd_bread (extname
, 20, abfd
) != 20)
1184 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1187 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1188 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1189 return do_slurp_bsd_armap (abfd
);
1192 abfd
->has_armap
= FALSE
;
1196 /** Extended name table.
1198 Normally archives support only 14-character filenames.
1200 Intel has extended the format: longer names are stored in a special
1201 element (the first in the archive, or second if there is an armap);
1202 the name in the ar_hdr is replaced by <space><index into filename
1203 element>. Index is the P.R. of an int (decimal). Data General have
1204 extended the format by using the prefix // for the special element. */
1206 /* Returns FALSE on error, TRUE otherwise. */
1209 _bfd_slurp_extended_name_table (bfd
*abfd
)
1212 struct areltdata
*namedata
;
1215 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1216 we probably don't want to return TRUE. */
1217 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1220 if (bfd_bread (nextname
, 16, abfd
) == 16)
1222 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1225 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1226 && ! CONST_STRNEQ (nextname
, "// "))
1228 bfd_ardata (abfd
)->extended_names
= NULL
;
1229 bfd_ardata (abfd
)->extended_names_size
= 0;
1233 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1234 if (namedata
== NULL
)
1237 amt
= namedata
->parsed_size
;
1241 bfd_ardata (abfd
)->extended_names_size
= amt
;
1242 bfd_ardata (abfd
)->extended_names
= (char *) bfd_alloc (abfd
, amt
+ 1);
1243 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1247 bfd_ardata (abfd
)->extended_names
= NULL
;
1248 bfd_ardata (abfd
)->extended_names_size
= 0;
1252 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1254 if (bfd_get_error () != bfd_error_system_call
)
1255 bfd_set_error (bfd_error_malformed_archive
);
1256 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1257 bfd_ardata (abfd
)->extended_names
= NULL
;
1260 bfd_ardata (abfd
)->extended_names
[amt
] = 0;
1262 /* Since the archive is supposed to be printable if it contains
1263 text, the entries in the list are newline-padded, not null
1264 padded. In SVR4-style archives, the names also have a
1265 trailing '/'. DOS/NT created archive often have \ in them
1266 We'll fix all problems here. */
1268 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1269 char *temp
= ext_names
;
1270 char *limit
= temp
+ namedata
->parsed_size
;
1272 for (; temp
< limit
; ++temp
)
1274 if (*temp
== ARFMAG
[1])
1275 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1282 /* Pad to an even boundary if you have to. */
1283 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1284 bfd_ardata (abfd
)->first_file_filepos
+=
1285 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1294 /* Return a copy of the stuff in the filename between any :]> and a
1298 normalize (bfd
*abfd
, const char *file
)
1304 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1307 first
= file
+ strlen (file
) - 1;
1310 while (first
!= file
)
1314 if (*first
== ':' || *first
== ']' || *first
== '>')
1322 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1326 memcpy (copy
, first
, last
- first
);
1327 copy
[last
- first
] = 0;
1334 normalize (bfd
*abfd
, const char *file
)
1336 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1338 return lbasename (file
);
1342 /* Adjust a relative path name based on the reference path.
1345 Relative path Reference path Result
1346 ------------- -------------- ------
1348 foo/bar.o lib.a foo/bar.o
1349 bar.o foo/lib.a ../bar.o
1350 foo/bar.o baz/lib.a ../foo/bar.o
1351 bar.o ../lib.a <parent of current dir>/bar.o
1352 ; ../bar.o ../lib.a bar.o
1353 ; ../bar.o lib.a ../bar.o
1354 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1355 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1356 bar.o foo/baz/lib.a ../../bar.o
1358 Note - the semicolons above are there to prevent the BFD chew
1359 utility from interpreting those lines as prototypes to put into
1360 the autogenerated bfd.h header...
1362 Note - the string is returned in a static buffer. */
1365 adjust_relative_path (const char * path
, const char * ref_path
)
1367 static char *pathbuf
= NULL
;
1368 static unsigned int pathbuf_len
= 0;
1374 unsigned int dir_up
= 0;
1375 unsigned int dir_down
= 0;
1377 char * pwd
= getpwd ();
1380 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1381 lpath
= lrealpath (path
);
1382 pathp
= lpath
== NULL
? path
: lpath
;
1384 rpath
= lrealpath (ref_path
);
1385 refp
= rpath
== NULL
? ref_path
: rpath
;
1387 /* Remove common leading path elements. */
1390 const char *e1
= pathp
;
1391 const char *e2
= refp
;
1393 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1395 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1397 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1398 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1404 len
= strlen (pathp
) + 1;
1405 /* For each leading path element in the reference path,
1406 insert "../" into the path. */
1407 for (; *refp
; ++refp
)
1408 if (IS_DIR_SEPARATOR (*refp
))
1410 /* PR 12710: If the path element is "../" then instead of
1411 inserting "../" we need to insert the name of the directory
1412 at the current level. */
1413 if (refp
> ref_path
+ 1
1421 /* If the lrealpath calls above succeeded then we should never
1422 see dir_up and dir_down both being non-zero. */
1428 down
= pwd
+ strlen (pwd
) - 1;
1430 while (dir_down
&& down
> pwd
)
1432 if (IS_DIR_SEPARATOR (*down
))
1435 BFD_ASSERT (dir_down
== 0);
1436 len
+= strlen (down
) + 1;
1441 if (len
> pathbuf_len
)
1443 if (pathbuf
!= NULL
)
1446 pathbuf
= (char *) bfd_malloc (len
);
1447 if (pathbuf
== NULL
)
1453 while (dir_up
-- > 0)
1455 /* FIXME: Support Windows style path separators as well. */
1456 strcpy (newp
, "../");
1461 sprintf (newp
, "%s/%s", down
, pathp
);
1463 strcpy (newp
, pathp
);
1471 /* Build a BFD style extended name table. */
1474 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1476 bfd_size_type
*tablen
,
1479 *name
= "ARFILENAMES/";
1480 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1483 /* Build an SVR4 style extended name table. */
1486 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1488 bfd_size_type
*tablen
,
1492 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1496 _bfd_noarchive_construct_extended_name_table (bfd
*abfd ATTRIBUTE_UNUSED
,
1497 char **tabloc ATTRIBUTE_UNUSED
,
1498 bfd_size_type
*len ATTRIBUTE_UNUSED
,
1499 const char **name ATTRIBUTE_UNUSED
)
1504 /* Follows archive_head and produces an extended name table if
1505 necessary. Returns (in tabloc) a pointer to an extended name
1506 table, and in tablen the length of the table. If it makes an entry
1507 it clobbers the filename so that the element may be written without
1508 further massage. Returns TRUE if it ran successfully, FALSE if
1509 something went wrong. A successful return may still involve a
1510 zero-length tablen! */
1513 _bfd_construct_extended_name_table (bfd
*abfd
,
1514 bfd_boolean trailing_slash
,
1516 bfd_size_type
*tablen
)
1518 unsigned int maxname
= ar_maxnamelen (abfd
);
1519 bfd_size_type total_namelen
= 0;
1522 const char *last_filename
;
1526 last_filename
= NULL
;
1528 /* Figure out how long the table should be. */
1529 for (current
= abfd
->archive_head
;
1531 current
= current
->archive_next
)
1534 unsigned int thislen
;
1536 if (bfd_is_thin_archive (abfd
))
1538 const char *filename
= current
->filename
;
1540 /* If the element being added is a member of another archive
1541 (i.e., we are flattening), use the containing archive's name. */
1542 if (current
->my_archive
1543 && ! bfd_is_thin_archive (current
->my_archive
))
1544 filename
= current
->my_archive
->filename
;
1546 /* If the path is the same as the previous path seen,
1547 reuse it. This can happen when flattening a thin
1548 archive that contains other archives. */
1549 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1552 last_filename
= filename
;
1554 /* If the path is relative, adjust it relative to
1555 the containing archive. */
1556 if (! IS_ABSOLUTE_PATH (filename
)
1557 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1558 normal
= adjust_relative_path (filename
, abfd
->filename
);
1562 /* In a thin archive, always store the full pathname
1563 in the extended name table. */
1564 total_namelen
+= strlen (normal
) + 1;
1566 /* Leave room for trailing slash. */
1572 normal
= normalize (abfd
, current
->filename
);
1576 thislen
= strlen (normal
);
1578 if (thislen
> maxname
1579 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1582 if (thislen
> maxname
)
1584 /* Add one to leave room for \n. */
1585 total_namelen
+= thislen
+ 1;
1588 /* Leave room for trailing slash. */
1594 struct ar_hdr
*hdr
= arch_hdr (current
);
1595 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1596 || (thislen
< sizeof hdr
->ar_name
1597 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1599 /* Must have been using extended format even though it
1600 didn't need to. Fix it to use normal format. */
1601 memcpy (hdr
->ar_name
, normal
, thislen
);
1602 if (thislen
< maxname
1603 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1604 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1609 if (total_namelen
== 0)
1612 *tabloc
= (char *) bfd_alloc (abfd
, total_namelen
);
1613 if (*tabloc
== NULL
)
1616 *tablen
= total_namelen
;
1619 last_filename
= NULL
;
1622 for (current
= abfd
->archive_head
;
1624 current
= current
->archive_next
)
1627 unsigned int thislen
;
1629 const char *filename
= current
->filename
;
1631 if (bfd_is_thin_archive (abfd
))
1633 /* If the element being added is a member of another archive
1634 (i.e., we are flattening), use the containing archive's name. */
1635 if (current
->my_archive
1636 && ! bfd_is_thin_archive (current
->my_archive
))
1637 filename
= current
->my_archive
->filename
;
1638 /* If the path is the same as the previous path seen,
1639 reuse it. This can happen when flattening a thin
1640 archive that contains other archives.
1641 If the path is relative, adjust it relative to
1642 the containing archive. */
1643 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1644 normal
= last_filename
;
1645 else if (! IS_ABSOLUTE_PATH (filename
)
1646 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1647 normal
= adjust_relative_path (filename
, abfd
->filename
);
1653 normal
= normalize (abfd
, filename
);
1658 thislen
= strlen (normal
);
1659 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1661 /* Works for now; may need to be re-engineered if we
1662 encounter an oddball archive format and want to
1663 generalise this hack. */
1664 struct ar_hdr
*hdr
= arch_hdr (current
);
1665 if (normal
== last_filename
)
1666 stroff
= last_stroff
;
1669 last_filename
= filename
;
1670 stroff
= strptr
- *tabloc
;
1671 last_stroff
= stroff
;
1672 memcpy (strptr
, normal
, thislen
);
1676 *strptr
++ = ARFMAG
[1];
1678 hdr
->ar_name
[0] = ar_padchar (current
);
1679 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1681 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1683 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1685 current
->origin
- sizeof (struct ar_hdr
));
1688 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1695 /* Do not construct an extended name table but transforms name field into
1696 its extended form. */
1699 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1701 bfd_size_type
*tablen
,
1704 unsigned int maxname
= ar_maxnamelen (abfd
);
1711 for (current
= abfd
->archive_head
;
1713 current
= current
->archive_next
)
1715 const char *normal
= normalize (abfd
, current
->filename
);
1722 for (len
= 0; normal
[len
]; len
++)
1723 if (normal
[len
] == ' ')
1726 if (len
> maxname
|| has_space
)
1728 struct ar_hdr
*hdr
= arch_hdr (current
);
1730 len
= (len
+ 3) & ~3;
1731 arch_eltdata (current
)->extra_size
= len
;
1732 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1739 /* Write an archive header. */
1742 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1744 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1746 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1751 /* Write an archive header using BSD4.4 convention. */
1754 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1756 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1758 if (is_bsd44_extended_name (hdr
->ar_name
))
1760 /* This is a BSD 4.4 extended name. */
1761 const char *fullname
= normalize (abfd
, abfd
->filename
);
1762 unsigned int len
= strlen (fullname
);
1763 unsigned int padded_len
= (len
+ 3) & ~3;
1765 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1767 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1768 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1771 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1774 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1779 static const char pad
[3] = { 0, 0, 0 };
1781 len
= 4 - (len
& 3);
1782 if (bfd_bwrite (pad
, len
, archive
) != len
)
1788 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1795 _bfd_noarchive_write_ar_hdr (bfd
*archive
, bfd
*abfd ATTRIBUTE_UNUSED
)
1797 return _bfd_bool_bfd_false_error (archive
);
1800 /* A couple of functions for creating ar_hdrs. */
1802 #ifdef HPUX_LARGE_AR_IDS
1803 /* Function to encode large UID/GID values according to HP. */
1806 hpux_uid_gid_encode (char str
[6], long int id
)
1810 str
[5] = '@' + (id
& 3);
1813 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1814 str
[cnt
] = ' ' + (id
& 0x3f);
1816 #endif /* HPUX_LARGE_AR_IDS */
1826 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1827 make one. The filename must refer to a filename in the filesystem.
1828 The filename field of the ar_hdr will NOT be initialized. If member
1829 is set, and it's an in-memory bfd, we fake it. */
1831 static struct areltdata
*
1832 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1835 struct areltdata
*ared
;
1839 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1841 /* Assume we just "made" the member, and fake it. */
1842 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1843 time (&status
.st_mtime
);
1844 status
.st_uid
= getuid ();
1845 status
.st_gid
= getgid ();
1846 status
.st_mode
= 0644;
1847 status
.st_size
= bim
->size
;
1849 else if (stat (filename
, &status
) != 0)
1851 bfd_set_error (bfd_error_system_call
);
1855 /* If the caller requested that the BFD generate deterministic output,
1856 fake values for modification time, UID, GID, and file mode. */
1857 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1859 status
.st_mtime
= 0;
1862 status
.st_mode
= 0644;
1865 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1866 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1869 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1871 /* ar headers are space padded, not null padded! */
1872 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1874 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1876 #ifdef HPUX_LARGE_AR_IDS
1877 /* HP has a very "special" way to handle UID/GID's with numeric values
1879 if (status
.st_uid
> 99999)
1880 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1883 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1885 #ifdef HPUX_LARGE_AR_IDS
1886 /* HP has a very "special" way to handle UID/GID's with numeric values
1888 if (status
.st_gid
> 99999)
1889 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1892 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1894 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1896 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1898 bfd_set_error (bfd_error_file_too_big
);
1902 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1907 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1908 ared
->parsed_size
= status
.st_size
;
1909 ared
->arch_header
= (char *) hdr
;
1914 /* Analogous to stat call. */
1917 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1922 if (abfd
->arelt_data
== NULL
)
1924 bfd_set_error (bfd_error_invalid_operation
);
1928 hdr
= arch_hdr (abfd
);
1929 /* PR 17512: file: 3d9e9fe9. */
1932 #define foo(arelt, stelt, size) \
1933 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1934 if (aloser == hdr->arelt) \
1937 /* Some platforms support special notations for large IDs. */
1938 #ifdef HPUX_LARGE_AR_IDS
1939 # define foo2(arelt, stelt, size) \
1940 if (hdr->arelt[5] == ' ') \
1942 foo (arelt, stelt, size); \
1947 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1949 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1952 buf->stelt += hdr->arelt[cnt] - ' '; \
1954 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1957 buf->stelt += hdr->arelt[5] - '@'; \
1960 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1963 foo (ar_date
, st_mtime
, 10);
1964 foo2 (ar_uid
, st_uid
, 10);
1965 foo2 (ar_gid
, st_gid
, 10);
1966 foo (ar_mode
, st_mode
, 8);
1968 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1974 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
1976 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1977 Fortunately ic960 users will never use that option. Fixing this
1978 is very hard; fortunately I know how to do it and will do so once
1979 intel's release is out the door. */
1981 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1983 const char *filename
;
1984 size_t maxlen
= ar_maxnamelen (abfd
);
1986 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1988 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
1992 filename
= normalize (abfd
, pathname
);
1993 if (filename
== NULL
)
1999 length
= strlen (filename
);
2001 if (length
<= maxlen
)
2002 memcpy (hdr
->ar_name
, filename
, length
);
2004 /* Add the padding character if there is room for it. */
2006 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2007 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2011 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2013 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2015 const char *filename
= lbasename (pathname
);
2016 size_t maxlen
= ar_maxnamelen (abfd
);
2018 length
= strlen (filename
);
2020 if (length
<= maxlen
)
2021 memcpy (hdr
->ar_name
, filename
, length
);
2024 /* pathname: meet procrustes */
2025 memcpy (hdr
->ar_name
, filename
, maxlen
);
2029 if (length
< maxlen
)
2030 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2033 /* Store name into ar header. Truncates the name to fit.
2034 1> strip pathname to be just the basename.
2035 2> if it's short enuf to fit, stuff it in.
2036 3> If it doesn't end with .o, truncate it to fit
2037 4> truncate it before the .o, append .o, stuff THAT in. */
2039 /* This is what gnu ar does. It's better but incompatible with the
2043 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2045 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2047 const char *filename
= lbasename (pathname
);
2048 size_t maxlen
= ar_maxnamelen (abfd
);
2050 length
= strlen (filename
);
2052 if (length
<= maxlen
)
2053 memcpy (hdr
->ar_name
, filename
, length
);
2056 /* pathname: meet procrustes. */
2057 memcpy (hdr
->ar_name
, filename
, maxlen
);
2058 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2060 hdr
->ar_name
[maxlen
- 2] = '.';
2061 hdr
->ar_name
[maxlen
- 1] = 'o';
2067 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2071 _bfd_noarchive_truncate_arname (bfd
*abfd ATTRIBUTE_UNUSED
,
2072 const char *pathname ATTRIBUTE_UNUSED
,
2073 char *arhdr ATTRIBUTE_UNUSED
)
2077 /* The BFD is open for write and has its format set to bfd_archive. */
2080 _bfd_write_archive_contents (bfd
*arch
)
2083 char *etable
= NULL
;
2084 bfd_size_type elength
= 0;
2085 const char *ename
= NULL
;
2086 bfd_boolean makemap
= bfd_has_map (arch
);
2087 /* If no .o's, don't bother to make a map. */
2088 bfd_boolean hasobjects
= FALSE
;
2089 bfd_size_type wrote
;
2093 /* Verify the viability of all entries; if any of them live in the
2094 filesystem (as opposed to living in an archive open for input)
2095 then construct a fresh ar_hdr for them. */
2096 for (current
= arch
->archive_head
;
2098 current
= current
->archive_next
)
2100 /* This check is checking the bfds for the objects we're reading
2101 from (which are usually either an object file or archive on
2102 disk), not the archive entries we're writing to. We don't
2103 actually create bfds for the archive members, we just copy
2104 them byte-wise when we write out the archive. */
2105 if (bfd_write_p (current
))
2107 bfd_set_error (bfd_error_invalid_operation
);
2110 if (!current
->arelt_data
)
2112 current
->arelt_data
=
2113 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2114 if (!current
->arelt_data
)
2117 /* Put in the file name. */
2118 BFD_SEND (arch
, _bfd_truncate_arname
,
2119 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2122 if (makemap
&& ! hasobjects
)
2123 { /* Don't bother if we won't make a map! */
2124 if ((bfd_check_format (current
, bfd_object
)))
2129 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2130 (arch
, &etable
, &elength
, &ename
)))
2133 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2136 if (bfd_is_thin_archive (arch
))
2138 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2139 if (wrote
!= SARMAG
)
2142 if (makemap
&& hasobjects
)
2144 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2152 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2153 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2154 /* Round size up to even number in archive header. */
2155 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2156 (elength
+ 1) & ~(bfd_size_type
) 1))
2158 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2159 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2160 != sizeof (struct ar_hdr
))
2161 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2163 if ((elength
% 2) == 1)
2165 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2170 for (current
= arch
->archive_head
;
2172 current
= current
->archive_next
)
2174 char buffer
[DEFAULT_BUFFERSIZE
];
2175 bfd_size_type remaining
= arelt_size (current
);
2177 /* Write ar header. */
2178 if (!_bfd_write_ar_hdr (arch
, current
))
2180 if (bfd_is_thin_archive (arch
))
2182 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2187 size_t amt
= DEFAULT_BUFFERSIZE
;
2189 if (amt
> remaining
)
2192 if (bfd_bread (buffer
, amt
, current
) != amt
)
2194 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2199 if ((arelt_size (current
) % 2) == 1)
2201 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2206 if (makemap
&& hasobjects
)
2208 /* Verify the timestamp in the archive file. If it would not be
2209 accepted by the linker, rewrite it until it would be. If
2210 anything odd happens, break out and just return. (The
2211 Berkeley linker checks the timestamp and refuses to read the
2212 table-of-contents if it is >60 seconds less than the file's
2213 modified-time. That painful hack requires this painful hack. */
2217 if (bfd_update_armap_timestamp (arch
))
2220 (_("warning: writing archive was slow: rewriting timestamp"));
2222 while (++tries
< 6);
2228 bfd_set_input_error (current
, bfd_get_error ());
2232 /* Note that the namidx for the first symbol is 0. */
2235 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2237 char *first_name
= NULL
;
2239 file_ptr elt_no
= 0;
2240 struct orl
*map
= NULL
;
2241 unsigned int orl_max
= 1024; /* Fine initial default. */
2242 unsigned int orl_count
= 0;
2244 asymbol
**syms
= NULL
;
2248 static bfd_boolean report_plugin_err
= TRUE
;
2250 /* Dunno if this is the best place for this info... */
2252 elength
+= sizeof (struct ar_hdr
);
2253 elength
+= elength
% 2;
2255 amt
= orl_max
* sizeof (struct orl
);
2256 map
= (struct orl
*) bfd_malloc (amt
);
2260 /* We put the symbol names on the arch objalloc, and then discard
2262 first_name
= (char *) bfd_alloc (arch
, 1);
2263 if (first_name
== NULL
)
2266 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2267 while (arch
->archive_head
2268 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2269 arch
->archive_head
= arch
->archive_head
->archive_next
;
2271 /* Map over each element. */
2272 for (current
= arch
->archive_head
;
2274 current
= current
->archive_next
, elt_no
++)
2276 if (bfd_check_format (current
, bfd_object
)
2277 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2283 if (current
->lto_slim_object
&& report_plugin_err
)
2285 report_plugin_err
= FALSE
;
2287 (_("%pB: plugin needed to handle lto object"),
2291 storage
= bfd_get_symtab_upper_bound (current
);
2297 if (storage
> syms_max
)
2302 syms
= (asymbol
**) bfd_malloc (syms_max
);
2306 symcount
= bfd_canonicalize_symtab (current
, syms
);
2310 /* Now map over all the symbols, picking out the ones we
2312 for (src_count
= 0; src_count
< symcount
; src_count
++)
2314 flagword flags
= (syms
[src_count
])->flags
;
2315 asection
*sec
= syms
[src_count
]->section
;
2317 if (((flags
& (BSF_GLOBAL
2320 | BSF_GNU_UNIQUE
)) != 0
2321 || bfd_is_com_section (sec
))
2322 && ! bfd_is_und_section (sec
))
2324 bfd_size_type namelen
;
2325 struct orl
*new_map
;
2327 /* This symbol will go into the archive header. */
2328 if (orl_count
== orl_max
)
2331 amt
= orl_max
* sizeof (struct orl
);
2332 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2333 if (new_map
== NULL
)
2339 if (syms
[src_count
]->name
[0] == '_'
2340 && syms
[src_count
]->name
[1] == '_'
2341 && strcmp (syms
[src_count
]->name
2342 + (syms
[src_count
]->name
[2] == '_'),
2343 "__gnu_lto_slim") == 0
2344 && report_plugin_err
)
2346 report_plugin_err
= FALSE
;
2348 (_("%pB: plugin needed to handle lto object"),
2351 namelen
= strlen (syms
[src_count
]->name
);
2352 amt
= sizeof (char *);
2353 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2354 if (map
[orl_count
].name
== NULL
)
2356 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2358 if (*(map
[orl_count
].name
) == NULL
)
2360 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2361 map
[orl_count
].u
.abfd
= current
;
2362 map
[orl_count
].namidx
= stridx
;
2364 stridx
+= namelen
+ 1;
2370 /* Now ask the BFD to free up any cached information, so we
2371 don't fill all of memory with symbol tables. */
2372 if (! bfd_free_cached_info (current
))
2377 /* OK, now we have collected all the data, let's write them out. */
2378 ret
= BFD_SEND (arch
, write_armap
,
2379 (arch
, elength
, map
, orl_count
, stridx
));
2385 if (first_name
!= NULL
)
2386 bfd_release (arch
, first_name
);
2395 if (first_name
!= NULL
)
2396 bfd_release (arch
, first_name
);
2402 _bfd_bsd_write_armap (bfd
*arch
,
2403 unsigned int elength
,
2405 unsigned int orl_count
,
2408 int padit
= stridx
& 1;
2409 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2410 unsigned int stringsize
= stridx
+ padit
;
2411 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2412 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2413 file_ptr firstreal
, first
;
2421 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2425 current
= arch
->archive_head
;
2426 last_elt
= current
; /* Last element arch seen. */
2427 for (count
= 0; count
< orl_count
; count
++)
2429 unsigned int offset
;
2431 if (map
[count
].u
.abfd
!= last_elt
)
2435 struct areltdata
*ared
= arch_eltdata (current
);
2437 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2438 + sizeof (struct ar_hdr
));
2439 firstreal
+= firstreal
% 2;
2440 current
= current
->archive_next
;
2442 while (current
!= map
[count
].u
.abfd
);
2445 /* The archive file format only has 4 bytes to store the offset
2446 of the member. Generate 64-bit archive if an archive is past
2448 offset
= (unsigned int) firstreal
;
2449 if (firstreal
!= (file_ptr
) offset
)
2450 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2457 /* If deterministic, we use 0 as the timestamp in the map.
2458 Some linkers may require that the archive filesystem modification
2459 time is less than (or near to) the archive map timestamp. Those
2460 linkers should not be used with deterministic mode. (GNU ld and
2461 Gold do not have this restriction.) */
2462 bfd_ardata (arch
)->armap_timestamp
= 0;
2465 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2467 struct stat statbuf
;
2469 if (stat (arch
->filename
, &statbuf
) == 0)
2470 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2471 + ARMAP_TIME_OFFSET
);
2476 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2477 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2478 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2479 + offsetof (struct ar_hdr
, ar_date
[0]));
2480 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2481 bfd_ardata (arch
)->armap_timestamp
);
2482 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2483 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2484 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2486 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2487 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2488 != sizeof (struct ar_hdr
))
2490 H_PUT_32 (arch
, ranlibsize
, temp
);
2491 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2495 current
= arch
->archive_head
;
2496 last_elt
= current
; /* Last element arch seen. */
2497 for (count
= 0; count
< orl_count
; count
++)
2499 unsigned int offset
;
2500 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2502 if (map
[count
].u
.abfd
!= last_elt
)
2506 struct areltdata
*ared
= arch_eltdata (current
);
2508 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2509 + sizeof (struct ar_hdr
));
2510 firstreal
+= firstreal
% 2;
2511 current
= current
->archive_next
;
2513 while (current
!= map
[count
].u
.abfd
);
2516 /* The archive file format only has 4 bytes to store the offset
2517 of the member. Check to make sure that firstreal has not grown
2519 offset
= (unsigned int) firstreal
;
2520 if (firstreal
!= (file_ptr
) offset
)
2522 bfd_set_error (bfd_error_file_truncated
);
2527 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2528 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2529 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2534 /* Now write the strings themselves. */
2535 H_PUT_32 (arch
, stringsize
, temp
);
2536 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2538 for (count
= 0; count
< orl_count
; count
++)
2540 size_t len
= strlen (*map
[count
].name
) + 1;
2542 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2546 /* The spec sez this should be a newline. But in order to be
2547 bug-compatible for sun's ar we use a null. */
2550 if (bfd_bwrite ("", 1, arch
) != 1)
2557 /* At the end of archive file handling, update the timestamp in the
2558 file, so the linker will accept it.
2560 Return TRUE if the timestamp was OK, or an unusual problem happened.
2561 Return FALSE if we updated the timestamp. */
2564 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2566 struct stat archstat
;
2569 /* If creating deterministic archives, just leave the timestamp as-is. */
2570 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2573 /* Flush writes, get last-write timestamp from file, and compare it
2574 to the timestamp IN the file. */
2576 if (bfd_stat (arch
, &archstat
) == -1)
2578 bfd_perror (_("Reading archive file mod timestamp"));
2580 /* Can't read mod time for some reason. */
2583 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2584 /* OK by the linker's rules. */
2587 /* Update the timestamp. */
2588 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2590 /* Prepare an ASCII version suitable for writing. */
2591 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2592 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2593 bfd_ardata (arch
)->armap_timestamp
);
2595 /* Write it into the file. */
2596 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2597 + offsetof (struct ar_hdr
, ar_date
[0]));
2598 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2599 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2600 != sizeof (hdr
.ar_date
)))
2602 bfd_perror (_("Writing updated armap timestamp"));
2604 /* Some error while writing. */
2608 /* We updated the timestamp successfully. */
2612 /* A coff armap looks like :
2614 struct ar_hdr with name = '/'
2616 offset of file for symbol 0
2617 offset of file for symbol 1
2619 offset of file for symbol n-1
2626 _bfd_coff_write_armap (bfd
*arch
,
2627 unsigned int elength
,
2629 unsigned int symbol_count
,
2632 /* The size of the ranlib is the number of exported symbols in the
2633 archive * the number of bytes in an int, + an int for the count. */
2634 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2635 unsigned int stringsize
= stridx
;
2636 unsigned int mapsize
= stringsize
+ ranlibsize
;
2637 file_ptr archive_member_file_ptr
;
2638 file_ptr first_archive_member_file_ptr
;
2639 bfd
*current
= arch
->archive_head
;
2642 int padit
= mapsize
& 1;
2647 /* Work out where the first object file will go in the archive. */
2648 first_archive_member_file_ptr
= (mapsize
2650 + sizeof (struct ar_hdr
)
2654 current
= arch
->archive_head
;
2656 archive_member_file_ptr
= first_archive_member_file_ptr
;
2657 while (current
!= NULL
&& count
< symbol_count
)
2659 /* For each symbol which is used defined in this object, write
2660 out the object file's address in the archive. */
2662 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2664 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2666 /* Generate 64-bit archive if an archive is past its 4Gb
2668 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2669 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2670 symbol_count
, stridx
);
2673 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2674 if (! bfd_is_thin_archive (arch
))
2676 /* Add size of this archive entry. */
2677 archive_member_file_ptr
+= arelt_size (current
);
2678 /* Remember about the even alignment. */
2679 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2681 current
= current
->archive_next
;
2685 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2686 hdr
.ar_name
[0] = '/';
2687 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2689 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2690 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2691 ? time (NULL
) : 0));
2692 /* This, at least, is what Intel coff sets the values to. */
2693 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2694 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2695 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2696 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2698 /* Write the ar header for this item and the number of symbols. */
2699 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2700 != sizeof (struct ar_hdr
))
2703 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2706 /* Two passes, first write the file offsets for each symbol -
2707 remembering that each offset is on a two byte boundary. */
2709 /* Write out the file offset for the file associated with each
2710 symbol, and remember to keep the offsets padded out. */
2712 current
= arch
->archive_head
;
2714 archive_member_file_ptr
= first_archive_member_file_ptr
;
2715 while (current
!= NULL
&& count
< symbol_count
)
2717 /* For each symbol which is used defined in this object, write
2718 out the object file's address in the archive. */
2720 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2722 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2724 /* Catch an attempt to grow an archive past its 4Gb limit. */
2725 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2727 bfd_set_error (bfd_error_file_truncated
);
2730 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2734 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2735 if (! bfd_is_thin_archive (arch
))
2737 /* Add size of this archive entry. */
2738 archive_member_file_ptr
+= arelt_size (current
);
2739 /* Remember about the even alignment. */
2740 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2742 current
= current
->archive_next
;
2745 /* Now write the strings themselves. */
2746 for (count
= 0; count
< symbol_count
; count
++)
2748 size_t len
= strlen (*map
[count
].name
) + 1;
2750 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2754 /* The spec sez this should be a newline. But in order to be
2755 bug-compatible for arc960 we use a null. */
2758 if (bfd_bwrite ("", 1, arch
) != 1)
2766 _bfd_noarchive_write_armap
2767 (bfd
*arch ATTRIBUTE_UNUSED
,
2768 unsigned int elength ATTRIBUTE_UNUSED
,
2769 struct orl
*map ATTRIBUTE_UNUSED
,
2770 unsigned int orl_count ATTRIBUTE_UNUSED
,
2771 int stridx ATTRIBUTE_UNUSED
)
2777 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2779 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2781 bfd_close_all_done (ent
->arbfd
);
2786 _bfd_unlink_from_archive_parent (bfd
*abfd
)
2788 if (arch_eltdata (abfd
) != NULL
)
2790 struct areltdata
*ared
= arch_eltdata (abfd
);
2791 htab_t htab
= (htab_t
) ared
->parent_cache
;
2795 struct ar_cache ent
;
2798 ent
.ptr
= ared
->key
;
2799 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2802 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2803 htab_clear_slot (htab
, slot
);
2810 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2812 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2818 /* Close nested archives (if this bfd is a thin archive). */
2819 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2821 next
= nbfd
->archive_next
;
2825 htab
= bfd_ardata (abfd
)->cache
;
2828 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2830 bfd_ardata (abfd
)->cache
= NULL
;
2834 _bfd_unlink_from_archive_parent (abfd
);
2836 if (abfd
->is_linker_output
)
2837 (*abfd
->link
.hash
->hash_table_free
) (abfd
);