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
);
927 return _bfd_no_cleanup
;
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
;
955 bfd_byte
*raw_armap
, *rbase
;
956 struct artdata
*ardata
= bfd_ardata (abfd
);
958 bfd_size_type parsed_size
;
959 size_t amt
, string_size
;
962 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
965 parsed_size
= mapdata
->parsed_size
;
967 /* PR 17512: file: 883ff754. */
968 /* PR 17512: file: 0458885f. */
969 if (parsed_size
< BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
971 bfd_set_error (bfd_error_malformed_archive
);
975 raw_armap
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, parsed_size
, parsed_size
);
976 if (raw_armap
== NULL
)
979 parsed_size
-= BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
;
980 amt
= H_GET_32 (abfd
, raw_armap
);
981 if (amt
> parsed_size
982 || amt
% BSD_SYMDEF_SIZE
!= 0)
984 /* Probably we're using the wrong byte ordering. */
985 bfd_set_error (bfd_error_wrong_format
);
989 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
990 stringbase
= (char *) rbase
+ amt
+ BSD_STRING_COUNT_SIZE
;
991 string_size
= parsed_size
- amt
;
993 ardata
->symdef_count
= amt
/ BSD_SYMDEF_SIZE
;
994 if (_bfd_mul_overflow (ardata
->symdef_count
, sizeof (carsym
), &amt
))
996 bfd_set_error (bfd_error_no_memory
);
999 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1000 if (!ardata
->symdefs
)
1003 for (counter
= 0, set
= ardata
->symdefs
;
1004 counter
< ardata
->symdef_count
;
1005 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1007 unsigned nameoff
= H_GET_32 (abfd
, rbase
);
1008 if (nameoff
>= string_size
)
1010 bfd_set_error (bfd_error_malformed_archive
);
1013 set
->name
= stringbase
+ nameoff
;
1014 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1017 ardata
->first_file_filepos
= bfd_tell (abfd
);
1018 /* Pad to an even boundary if you have to. */
1019 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1020 /* FIXME, we should provide some way to free raw_ardata when
1021 we are done using the strings from it. For now, it seems
1022 to be allocated on an objalloc anyway... */
1023 abfd
->has_armap
= TRUE
;
1027 ardata
->symdef_count
= 0;
1028 ardata
->symdefs
= NULL
;
1029 bfd_release (abfd
, raw_armap
);
1033 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1037 do_slurp_coff_armap (bfd
*abfd
)
1039 struct areltdata
*mapdata
;
1040 int *raw_armap
, *rawptr
;
1041 struct artdata
*ardata
= bfd_ardata (abfd
);
1044 bfd_size_type stringsize
;
1045 bfd_size_type parsed_size
;
1047 size_t nsymz
, carsym_size
, ptrsize
, i
;
1049 bfd_vma (*swap
) (const void *);
1051 struct areltdata
*tmp
;
1053 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1054 if (mapdata
== NULL
)
1056 parsed_size
= mapdata
->parsed_size
;
1059 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1062 /* It seems that all numeric information in a coff archive is always
1063 in big endian format, no matter the host or target. */
1065 nsymz
= bfd_getb32 (int_buf
);
1067 /* The coff armap must be read sequentially. So we construct a
1068 bsd-style one in core all at once, for simplicity. */
1070 if (_bfd_mul_overflow (nsymz
, sizeof (carsym
), &carsym_size
))
1072 bfd_set_error (bfd_error_no_memory
);
1076 filesize
= bfd_get_file_size (abfd
);
1077 ptrsize
= 4 * nsymz
;
1078 if ((filesize
!= 0 && parsed_size
> filesize
)
1080 || parsed_size
- 4 < ptrsize
)
1082 bfd_set_error (bfd_error_malformed_archive
);
1086 stringsize
= parsed_size
- ptrsize
- 4;
1088 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1090 bfd_set_error (bfd_error_no_memory
);
1094 /* Allocate and read in the raw offsets. */
1095 raw_armap
= (int *) _bfd_malloc_and_read (abfd
, ptrsize
, ptrsize
);
1096 if (raw_armap
== NULL
)
1099 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
,
1100 carsym_size
+ stringsize
+ 1);
1101 if (ardata
->symdefs
== NULL
)
1103 carsyms
= ardata
->symdefs
;
1104 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1106 if (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
)
1107 goto release_symdefs
;
1109 /* OK, build the carsyms. */
1110 stringend
= stringbase
+ stringsize
;
1112 for (i
= 0; i
< nsymz
; i
++)
1114 rawptr
= raw_armap
+ i
;
1115 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1116 carsyms
->name
= stringbase
;
1117 stringbase
+= strlen (stringbase
);
1118 if (stringbase
!= stringend
)
1123 ardata
->symdef_count
= nsymz
;
1124 ardata
->first_file_filepos
= bfd_tell (abfd
);
1125 /* Pad to an even boundary if you have to. */
1126 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1127 if (bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
) != 0)
1128 goto release_symdefs
;
1130 abfd
->has_armap
= TRUE
;
1133 /* Check for a second archive header (as used by PE). */
1134 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1137 if (tmp
->arch_header
[0] == '/'
1138 && tmp
->arch_header
[1] == ' ')
1139 ardata
->first_file_filepos
1140 += (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1147 bfd_release (abfd
, (ardata
)->symdefs
);
1153 /* This routine can handle either coff-style or bsd-style armaps
1154 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1157 bfd_slurp_armap (bfd
*abfd
)
1160 int i
= bfd_bread (nextname
, 16, abfd
);
1167 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1170 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1171 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1172 return do_slurp_bsd_armap (abfd
);
1173 else if (CONST_STRNEQ (nextname
, "/ "))
1174 return do_slurp_coff_armap (abfd
);
1175 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1177 /* 64bit (Irix 6) archive. */
1179 return _bfd_archive_64_bit_slurp_armap (abfd
);
1181 bfd_set_error (bfd_error_wrong_format
);
1185 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1187 /* Mach-O has a special name for armap when the map is sorted by name.
1188 However because this name has a space it is slightly more difficult
1193 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1195 /* Read the extended name. We know its length. */
1196 if (bfd_bread (extname
, 20, abfd
) != 20)
1198 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1201 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1202 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1203 return do_slurp_bsd_armap (abfd
);
1206 abfd
->has_armap
= FALSE
;
1210 /** Extended name table.
1212 Normally archives support only 14-character filenames.
1214 Intel has extended the format: longer names are stored in a special
1215 element (the first in the archive, or second if there is an armap);
1216 the name in the ar_hdr is replaced by <space><index into filename
1217 element>. Index is the P.R. of an int (decimal). Data General have
1218 extended the format by using the prefix // for the special element. */
1220 /* Returns FALSE on error, TRUE otherwise. */
1223 _bfd_slurp_extended_name_table (bfd
*abfd
)
1227 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1228 we probably don't want to return TRUE. */
1229 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1232 if (bfd_bread (nextname
, 16, abfd
) == 16)
1234 struct areltdata
*namedata
;
1238 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1241 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1242 && ! CONST_STRNEQ (nextname
, "// "))
1244 bfd_ardata (abfd
)->extended_names
= NULL
;
1245 bfd_ardata (abfd
)->extended_names_size
= 0;
1249 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1250 if (namedata
== NULL
)
1253 filesize
= bfd_get_file_size (abfd
);
1254 amt
= namedata
->parsed_size
;
1255 if (amt
+ 1 == 0 || (filesize
!= 0 && amt
> filesize
))
1257 bfd_set_error (bfd_error_malformed_archive
);
1261 bfd_ardata (abfd
)->extended_names_size
= amt
;
1262 bfd_ardata (abfd
)->extended_names
= (char *) bfd_alloc (abfd
, amt
+ 1);
1263 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1267 bfd_ardata (abfd
)->extended_names
= NULL
;
1268 bfd_ardata (abfd
)->extended_names_size
= 0;
1272 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1274 if (bfd_get_error () != bfd_error_system_call
)
1275 bfd_set_error (bfd_error_malformed_archive
);
1276 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1277 bfd_ardata (abfd
)->extended_names
= NULL
;
1280 bfd_ardata (abfd
)->extended_names
[amt
] = 0;
1282 /* Since the archive is supposed to be printable if it contains
1283 text, the entries in the list are newline-padded, not null
1284 padded. In SVR4-style archives, the names also have a
1285 trailing '/'. DOS/NT created archive often have \ in them
1286 We'll fix all problems here. */
1288 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1289 char *temp
= ext_names
;
1290 char *limit
= temp
+ namedata
->parsed_size
;
1292 for (; temp
< limit
; ++temp
)
1294 if (*temp
== ARFMAG
[1])
1295 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1302 /* Pad to an even boundary if you have to. */
1303 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1304 bfd_ardata (abfd
)->first_file_filepos
+=
1305 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1314 /* Return a copy of the stuff in the filename between any :]> and a
1318 normalize (bfd
*abfd
, const char *file
)
1324 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1327 first
= file
+ strlen (file
) - 1;
1330 while (first
!= file
)
1334 if (*first
== ':' || *first
== ']' || *first
== '>')
1342 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1346 memcpy (copy
, first
, last
- first
);
1347 copy
[last
- first
] = 0;
1354 normalize (bfd
*abfd
, const char *file
)
1356 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1358 return lbasename (file
);
1362 /* Adjust a relative path name based on the reference path.
1365 Relative path Reference path Result
1366 ------------- -------------- ------
1368 foo/bar.o lib.a foo/bar.o
1369 bar.o foo/lib.a ../bar.o
1370 foo/bar.o baz/lib.a ../foo/bar.o
1371 bar.o ../lib.a <parent of current dir>/bar.o
1372 ; ../bar.o ../lib.a bar.o
1373 ; ../bar.o lib.a ../bar.o
1374 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1375 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1376 bar.o foo/baz/lib.a ../../bar.o
1378 Note - the semicolons above are there to prevent the BFD chew
1379 utility from interpreting those lines as prototypes to put into
1380 the autogenerated bfd.h header...
1382 Note - the string is returned in a static buffer. */
1385 adjust_relative_path (const char * path
, const char * ref_path
)
1387 static char *pathbuf
= NULL
;
1388 static unsigned int pathbuf_len
= 0;
1394 unsigned int dir_up
= 0;
1395 unsigned int dir_down
= 0;
1397 char * pwd
= getpwd ();
1400 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1401 lpath
= lrealpath (path
);
1402 pathp
= lpath
== NULL
? path
: lpath
;
1404 rpath
= lrealpath (ref_path
);
1405 refp
= rpath
== NULL
? ref_path
: rpath
;
1407 /* Remove common leading path elements. */
1410 const char *e1
= pathp
;
1411 const char *e2
= refp
;
1413 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1415 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1417 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1418 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1424 len
= strlen (pathp
) + 1;
1425 /* For each leading path element in the reference path,
1426 insert "../" into the path. */
1427 for (; *refp
; ++refp
)
1428 if (IS_DIR_SEPARATOR (*refp
))
1430 /* PR 12710: If the path element is "../" then instead of
1431 inserting "../" we need to insert the name of the directory
1432 at the current level. */
1433 if (refp
> ref_path
+ 1
1441 /* If the lrealpath calls above succeeded then we should never
1442 see dir_up and dir_down both being non-zero. */
1448 down
= pwd
+ strlen (pwd
) - 1;
1450 while (dir_down
&& down
> pwd
)
1452 if (IS_DIR_SEPARATOR (*down
))
1455 BFD_ASSERT (dir_down
== 0);
1456 len
+= strlen (down
) + 1;
1461 if (len
> pathbuf_len
)
1463 if (pathbuf
!= NULL
)
1466 pathbuf
= (char *) bfd_malloc (len
);
1467 if (pathbuf
== NULL
)
1473 while (dir_up
-- > 0)
1475 /* FIXME: Support Windows style path separators as well. */
1476 strcpy (newp
, "../");
1481 sprintf (newp
, "%s/%s", down
, pathp
);
1483 strcpy (newp
, pathp
);
1491 /* Build a BFD style extended name table. */
1494 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1496 bfd_size_type
*tablen
,
1499 *name
= "ARFILENAMES/";
1500 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1503 /* Build an SVR4 style extended name table. */
1506 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1508 bfd_size_type
*tablen
,
1512 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1516 _bfd_noarchive_construct_extended_name_table (bfd
*abfd ATTRIBUTE_UNUSED
,
1517 char **tabloc ATTRIBUTE_UNUSED
,
1518 bfd_size_type
*len ATTRIBUTE_UNUSED
,
1519 const char **name ATTRIBUTE_UNUSED
)
1524 /* Follows archive_head and produces an extended name table if
1525 necessary. Returns (in tabloc) a pointer to an extended name
1526 table, and in tablen the length of the table. If it makes an entry
1527 it clobbers the filename so that the element may be written without
1528 further massage. Returns TRUE if it ran successfully, FALSE if
1529 something went wrong. A successful return may still involve a
1530 zero-length tablen! */
1533 _bfd_construct_extended_name_table (bfd
*abfd
,
1534 bfd_boolean trailing_slash
,
1536 bfd_size_type
*tablen
)
1538 unsigned int maxname
= ar_maxnamelen (abfd
);
1539 bfd_size_type total_namelen
= 0;
1542 const char *last_filename
;
1546 last_filename
= NULL
;
1548 /* Figure out how long the table should be. */
1549 for (current
= abfd
->archive_head
;
1551 current
= current
->archive_next
)
1554 unsigned int thislen
;
1556 if (bfd_is_thin_archive (abfd
))
1558 const char *filename
= current
->filename
;
1560 /* If the element being added is a member of another archive
1561 (i.e., we are flattening), use the containing archive's name. */
1562 if (current
->my_archive
1563 && ! bfd_is_thin_archive (current
->my_archive
))
1564 filename
= current
->my_archive
->filename
;
1566 /* If the path is the same as the previous path seen,
1567 reuse it. This can happen when flattening a thin
1568 archive that contains other archives. */
1569 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1572 last_filename
= filename
;
1574 /* If the path is relative, adjust it relative to
1575 the containing archive. */
1576 if (! IS_ABSOLUTE_PATH (filename
)
1577 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1578 normal
= adjust_relative_path (filename
, abfd
->filename
);
1582 /* In a thin archive, always store the full pathname
1583 in the extended name table. */
1584 total_namelen
+= strlen (normal
) + 1;
1586 /* Leave room for trailing slash. */
1592 normal
= normalize (abfd
, current
->filename
);
1596 thislen
= strlen (normal
);
1598 if (thislen
> maxname
1599 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1602 if (thislen
> maxname
)
1604 /* Add one to leave room for \n. */
1605 total_namelen
+= thislen
+ 1;
1608 /* Leave room for trailing slash. */
1614 struct ar_hdr
*hdr
= arch_hdr (current
);
1615 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1616 || (thislen
< sizeof hdr
->ar_name
1617 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1619 /* Must have been using extended format even though it
1620 didn't need to. Fix it to use normal format. */
1621 memcpy (hdr
->ar_name
, normal
, thislen
);
1622 if (thislen
< maxname
1623 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1624 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1629 if (total_namelen
== 0)
1632 *tabloc
= (char *) bfd_alloc (abfd
, total_namelen
);
1633 if (*tabloc
== NULL
)
1636 *tablen
= total_namelen
;
1639 last_filename
= NULL
;
1642 for (current
= abfd
->archive_head
;
1644 current
= current
->archive_next
)
1647 unsigned int thislen
;
1649 const char *filename
= current
->filename
;
1651 if (bfd_is_thin_archive (abfd
))
1653 /* If the element being added is a member of another archive
1654 (i.e., we are flattening), use the containing archive's name. */
1655 if (current
->my_archive
1656 && ! bfd_is_thin_archive (current
->my_archive
))
1657 filename
= current
->my_archive
->filename
;
1658 /* If the path is the same as the previous path seen,
1659 reuse it. This can happen when flattening a thin
1660 archive that contains other archives.
1661 If the path is relative, adjust it relative to
1662 the containing archive. */
1663 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1664 normal
= last_filename
;
1665 else if (! IS_ABSOLUTE_PATH (filename
)
1666 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1667 normal
= adjust_relative_path (filename
, abfd
->filename
);
1673 normal
= normalize (abfd
, filename
);
1678 thislen
= strlen (normal
);
1679 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1681 /* Works for now; may need to be re-engineered if we
1682 encounter an oddball archive format and want to
1683 generalise this hack. */
1684 struct ar_hdr
*hdr
= arch_hdr (current
);
1685 if (normal
== last_filename
)
1686 stroff
= last_stroff
;
1689 last_filename
= filename
;
1690 stroff
= strptr
- *tabloc
;
1691 last_stroff
= stroff
;
1692 memcpy (strptr
, normal
, thislen
);
1696 *strptr
++ = ARFMAG
[1];
1698 hdr
->ar_name
[0] = ar_padchar (current
);
1699 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1701 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1703 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1705 current
->origin
- sizeof (struct ar_hdr
));
1708 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1715 /* Do not construct an extended name table but transforms name field into
1716 its extended form. */
1719 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1721 bfd_size_type
*tablen
,
1724 unsigned int maxname
= ar_maxnamelen (abfd
);
1731 for (current
= abfd
->archive_head
;
1733 current
= current
->archive_next
)
1735 const char *normal
= normalize (abfd
, current
->filename
);
1742 for (len
= 0; normal
[len
]; len
++)
1743 if (normal
[len
] == ' ')
1746 if (len
> maxname
|| has_space
)
1748 struct ar_hdr
*hdr
= arch_hdr (current
);
1750 len
= (len
+ 3) & ~3;
1751 arch_eltdata (current
)->extra_size
= len
;
1752 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1759 /* Write an archive header. */
1762 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1764 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1766 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1771 /* Write an archive header using BSD4.4 convention. */
1774 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1776 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1778 if (is_bsd44_extended_name (hdr
->ar_name
))
1780 /* This is a BSD 4.4 extended name. */
1781 const char *fullname
= normalize (abfd
, abfd
->filename
);
1782 unsigned int len
= strlen (fullname
);
1783 unsigned int padded_len
= (len
+ 3) & ~3;
1785 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1787 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1788 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1791 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1794 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1799 static const char pad
[3] = { 0, 0, 0 };
1801 len
= 4 - (len
& 3);
1802 if (bfd_bwrite (pad
, len
, archive
) != len
)
1808 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1815 _bfd_noarchive_write_ar_hdr (bfd
*archive
, bfd
*abfd ATTRIBUTE_UNUSED
)
1817 return _bfd_bool_bfd_false_error (archive
);
1820 /* A couple of functions for creating ar_hdrs. */
1822 #ifdef HPUX_LARGE_AR_IDS
1823 /* Function to encode large UID/GID values according to HP. */
1826 hpux_uid_gid_encode (char str
[6], long int id
)
1830 str
[5] = '@' + (id
& 3);
1833 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1834 str
[cnt
] = ' ' + (id
& 0x3f);
1836 #endif /* HPUX_LARGE_AR_IDS */
1846 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1847 make one. The filename must refer to a filename in the filesystem.
1848 The filename field of the ar_hdr will NOT be initialized. If member
1849 is set, and it's an in-memory bfd, we fake it. */
1851 static struct areltdata
*
1852 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1855 struct areltdata
*ared
;
1859 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1861 /* Assume we just "made" the member, and fake it. */
1862 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1863 time (&status
.st_mtime
);
1864 status
.st_uid
= getuid ();
1865 status
.st_gid
= getgid ();
1866 status
.st_mode
= 0644;
1867 status
.st_size
= bim
->size
;
1869 else if (stat (filename
, &status
) != 0)
1871 bfd_set_error (bfd_error_system_call
);
1875 /* If the caller requested that the BFD generate deterministic output,
1876 fake values for modification time, UID, GID, and file mode. */
1877 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1879 status
.st_mtime
= 0;
1882 status
.st_mode
= 0644;
1885 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1886 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1889 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1891 /* ar headers are space padded, not null padded! */
1892 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1894 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1896 #ifdef HPUX_LARGE_AR_IDS
1897 /* HP has a very "special" way to handle UID/GID's with numeric values
1899 if (status
.st_uid
> 99999)
1900 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1903 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1905 #ifdef HPUX_LARGE_AR_IDS
1906 /* HP has a very "special" way to handle UID/GID's with numeric values
1908 if (status
.st_gid
> 99999)
1909 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1912 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1914 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1916 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1918 bfd_set_error (bfd_error_file_too_big
);
1922 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1927 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1928 ared
->parsed_size
= status
.st_size
;
1929 ared
->arch_header
= (char *) hdr
;
1934 /* Analogous to stat call. */
1937 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1942 if (abfd
->arelt_data
== NULL
)
1944 bfd_set_error (bfd_error_invalid_operation
);
1948 hdr
= arch_hdr (abfd
);
1949 /* PR 17512: file: 3d9e9fe9. */
1952 #define foo(arelt, stelt, size) \
1953 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1954 if (aloser == hdr->arelt) \
1957 /* Some platforms support special notations for large IDs. */
1958 #ifdef HPUX_LARGE_AR_IDS
1959 # define foo2(arelt, stelt, size) \
1960 if (hdr->arelt[5] == ' ') \
1962 foo (arelt, stelt, size); \
1967 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1969 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1972 buf->stelt += hdr->arelt[cnt] - ' '; \
1974 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1977 buf->stelt += hdr->arelt[5] - '@'; \
1980 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1983 foo (ar_date
, st_mtime
, 10);
1984 foo2 (ar_uid
, st_uid
, 10);
1985 foo2 (ar_gid
, st_gid
, 10);
1986 foo (ar_mode
, st_mode
, 8);
1988 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1994 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
1996 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1997 Fortunately ic960 users will never use that option. Fixing this
1998 is very hard; fortunately I know how to do it and will do so once
1999 intel's release is out the door. */
2001 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2003 const char *filename
;
2004 size_t maxlen
= ar_maxnamelen (abfd
);
2006 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2008 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2012 filename
= normalize (abfd
, pathname
);
2013 if (filename
== NULL
)
2019 length
= strlen (filename
);
2021 if (length
<= maxlen
)
2022 memcpy (hdr
->ar_name
, filename
, length
);
2024 /* Add the padding character if there is room for it. */
2026 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2027 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2031 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2033 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2035 const char *filename
= lbasename (pathname
);
2036 size_t maxlen
= ar_maxnamelen (abfd
);
2038 length
= strlen (filename
);
2040 if (length
<= maxlen
)
2041 memcpy (hdr
->ar_name
, filename
, length
);
2044 /* pathname: meet procrustes */
2045 memcpy (hdr
->ar_name
, filename
, maxlen
);
2049 if (length
< maxlen
)
2050 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2053 /* Store name into ar header. Truncates the name to fit.
2054 1> strip pathname to be just the basename.
2055 2> if it's short enuf to fit, stuff it in.
2056 3> If it doesn't end with .o, truncate it to fit
2057 4> truncate it before the .o, append .o, stuff THAT in. */
2059 /* This is what gnu ar does. It's better but incompatible with the
2063 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2065 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2067 const char *filename
= lbasename (pathname
);
2068 size_t maxlen
= ar_maxnamelen (abfd
);
2070 length
= strlen (filename
);
2072 if (length
<= maxlen
)
2073 memcpy (hdr
->ar_name
, filename
, length
);
2076 /* pathname: meet procrustes. */
2077 memcpy (hdr
->ar_name
, filename
, maxlen
);
2078 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2080 hdr
->ar_name
[maxlen
- 2] = '.';
2081 hdr
->ar_name
[maxlen
- 1] = 'o';
2087 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2091 _bfd_noarchive_truncate_arname (bfd
*abfd ATTRIBUTE_UNUSED
,
2092 const char *pathname ATTRIBUTE_UNUSED
,
2093 char *arhdr ATTRIBUTE_UNUSED
)
2097 /* The BFD is open for write and has its format set to bfd_archive. */
2100 _bfd_write_archive_contents (bfd
*arch
)
2103 char *etable
= NULL
;
2104 bfd_size_type elength
= 0;
2105 const char *ename
= NULL
;
2106 bfd_boolean makemap
= bfd_has_map (arch
);
2107 /* If no .o's, don't bother to make a map. */
2108 bfd_boolean hasobjects
= FALSE
;
2109 bfd_size_type wrote
;
2113 /* Verify the viability of all entries; if any of them live in the
2114 filesystem (as opposed to living in an archive open for input)
2115 then construct a fresh ar_hdr for them. */
2116 for (current
= arch
->archive_head
;
2118 current
= current
->archive_next
)
2120 /* This check is checking the bfds for the objects we're reading
2121 from (which are usually either an object file or archive on
2122 disk), not the archive entries we're writing to. We don't
2123 actually create bfds for the archive members, we just copy
2124 them byte-wise when we write out the archive. */
2125 if (bfd_write_p (current
))
2127 bfd_set_error (bfd_error_invalid_operation
);
2130 if (!current
->arelt_data
)
2132 current
->arelt_data
=
2133 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2134 if (!current
->arelt_data
)
2137 /* Put in the file name. */
2138 BFD_SEND (arch
, _bfd_truncate_arname
,
2139 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2142 if (makemap
&& ! hasobjects
)
2143 { /* Don't bother if we won't make a map! */
2144 if ((bfd_check_format (current
, bfd_object
)))
2149 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2150 (arch
, &etable
, &elength
, &ename
)))
2153 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2156 if (bfd_is_thin_archive (arch
))
2158 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2159 if (wrote
!= SARMAG
)
2162 if (makemap
&& hasobjects
)
2164 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2172 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2173 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2174 /* Round size up to even number in archive header. */
2175 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2176 (elength
+ 1) & ~(bfd_size_type
) 1))
2178 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2179 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2180 != sizeof (struct ar_hdr
))
2181 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2183 if ((elength
% 2) == 1)
2185 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2190 for (current
= arch
->archive_head
;
2192 current
= current
->archive_next
)
2194 char buffer
[DEFAULT_BUFFERSIZE
];
2195 bfd_size_type remaining
= arelt_size (current
);
2197 /* Write ar header. */
2198 if (!_bfd_write_ar_hdr (arch
, current
))
2200 if (bfd_is_thin_archive (arch
))
2202 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2207 size_t amt
= DEFAULT_BUFFERSIZE
;
2209 if (amt
> remaining
)
2212 if (bfd_bread (buffer
, amt
, current
) != amt
)
2214 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2219 if ((arelt_size (current
) % 2) == 1)
2221 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2226 if (makemap
&& hasobjects
)
2228 /* Verify the timestamp in the archive file. If it would not be
2229 accepted by the linker, rewrite it until it would be. If
2230 anything odd happens, break out and just return. (The
2231 Berkeley linker checks the timestamp and refuses to read the
2232 table-of-contents if it is >60 seconds less than the file's
2233 modified-time. That painful hack requires this painful hack. */
2237 if (bfd_update_armap_timestamp (arch
))
2240 (_("warning: writing archive was slow: rewriting timestamp"));
2242 while (++tries
< 6);
2248 bfd_set_input_error (current
, bfd_get_error ());
2252 /* Note that the namidx for the first symbol is 0. */
2255 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2257 char *first_name
= NULL
;
2259 file_ptr elt_no
= 0;
2260 struct orl
*map
= NULL
;
2261 unsigned int orl_max
= 1024; /* Fine initial default. */
2262 unsigned int orl_count
= 0;
2264 asymbol
**syms
= NULL
;
2268 static bfd_boolean report_plugin_err
= TRUE
;
2270 /* Dunno if this is the best place for this info... */
2272 elength
+= sizeof (struct ar_hdr
);
2273 elength
+= elength
% 2;
2275 amt
= orl_max
* sizeof (struct orl
);
2276 map
= (struct orl
*) bfd_malloc (amt
);
2280 /* We put the symbol names on the arch objalloc, and then discard
2282 first_name
= (char *) bfd_alloc (arch
, 1);
2283 if (first_name
== NULL
)
2286 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2287 while (arch
->archive_head
2288 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2289 arch
->archive_head
= arch
->archive_head
->archive_next
;
2291 /* Map over each element. */
2292 for (current
= arch
->archive_head
;
2294 current
= current
->archive_next
, elt_no
++)
2296 if (bfd_check_format (current
, bfd_object
)
2297 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2303 if (current
->lto_slim_object
&& report_plugin_err
)
2305 report_plugin_err
= FALSE
;
2307 (_("%pB: plugin needed to handle lto object"),
2311 storage
= bfd_get_symtab_upper_bound (current
);
2317 if (storage
> syms_max
)
2322 syms
= (asymbol
**) bfd_malloc (syms_max
);
2326 symcount
= bfd_canonicalize_symtab (current
, syms
);
2330 /* Now map over all the symbols, picking out the ones we
2332 for (src_count
= 0; src_count
< symcount
; src_count
++)
2334 flagword flags
= (syms
[src_count
])->flags
;
2335 asection
*sec
= syms
[src_count
]->section
;
2337 if (((flags
& (BSF_GLOBAL
2340 | BSF_GNU_UNIQUE
)) != 0
2341 || bfd_is_com_section (sec
))
2342 && ! bfd_is_und_section (sec
))
2344 bfd_size_type namelen
;
2345 struct orl
*new_map
;
2347 /* This symbol will go into the archive header. */
2348 if (orl_count
== orl_max
)
2351 amt
= orl_max
* sizeof (struct orl
);
2352 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2353 if (new_map
== NULL
)
2359 if (syms
[src_count
]->name
[0] == '_'
2360 && syms
[src_count
]->name
[1] == '_'
2361 && strcmp (syms
[src_count
]->name
2362 + (syms
[src_count
]->name
[2] == '_'),
2363 "__gnu_lto_slim") == 0
2364 && report_plugin_err
)
2366 report_plugin_err
= FALSE
;
2368 (_("%pB: plugin needed to handle lto object"),
2371 namelen
= strlen (syms
[src_count
]->name
);
2372 amt
= sizeof (char *);
2373 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2374 if (map
[orl_count
].name
== NULL
)
2376 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2378 if (*(map
[orl_count
].name
) == NULL
)
2380 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2381 map
[orl_count
].u
.abfd
= current
;
2382 map
[orl_count
].namidx
= stridx
;
2384 stridx
+= namelen
+ 1;
2390 /* Now ask the BFD to free up any cached information, so we
2391 don't fill all of memory with symbol tables. */
2392 if (! bfd_free_cached_info (current
))
2397 /* OK, now we have collected all the data, let's write them out. */
2398 ret
= BFD_SEND (arch
, write_armap
,
2399 (arch
, elength
, map
, orl_count
, stridx
));
2405 if (first_name
!= NULL
)
2406 bfd_release (arch
, first_name
);
2415 if (first_name
!= NULL
)
2416 bfd_release (arch
, first_name
);
2422 _bfd_bsd_write_armap (bfd
*arch
,
2423 unsigned int elength
,
2425 unsigned int orl_count
,
2428 int padit
= stridx
& 1;
2429 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2430 unsigned int stringsize
= stridx
+ padit
;
2431 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2432 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2433 file_ptr firstreal
, first
;
2441 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2445 current
= arch
->archive_head
;
2446 last_elt
= current
; /* Last element arch seen. */
2447 for (count
= 0; count
< orl_count
; count
++)
2449 unsigned int offset
;
2451 if (map
[count
].u
.abfd
!= last_elt
)
2455 struct areltdata
*ared
= arch_eltdata (current
);
2457 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2458 + sizeof (struct ar_hdr
));
2459 firstreal
+= firstreal
% 2;
2460 current
= current
->archive_next
;
2462 while (current
!= map
[count
].u
.abfd
);
2465 /* The archive file format only has 4 bytes to store the offset
2466 of the member. Generate 64-bit archive if an archive is past
2468 offset
= (unsigned int) firstreal
;
2469 if (firstreal
!= (file_ptr
) offset
)
2470 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2477 /* If deterministic, we use 0 as the timestamp in the map.
2478 Some linkers may require that the archive filesystem modification
2479 time is less than (or near to) the archive map timestamp. Those
2480 linkers should not be used with deterministic mode. (GNU ld and
2481 Gold do not have this restriction.) */
2482 bfd_ardata (arch
)->armap_timestamp
= 0;
2485 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2487 struct stat statbuf
;
2489 if (stat (arch
->filename
, &statbuf
) == 0)
2490 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2491 + ARMAP_TIME_OFFSET
);
2496 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2497 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2498 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2499 + offsetof (struct ar_hdr
, ar_date
[0]));
2500 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2501 bfd_ardata (arch
)->armap_timestamp
);
2502 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2503 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2504 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2506 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2507 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2508 != sizeof (struct ar_hdr
))
2510 H_PUT_32 (arch
, ranlibsize
, temp
);
2511 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2515 current
= arch
->archive_head
;
2516 last_elt
= current
; /* Last element arch seen. */
2517 for (count
= 0; count
< orl_count
; count
++)
2519 unsigned int offset
;
2520 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2522 if (map
[count
].u
.abfd
!= last_elt
)
2526 struct areltdata
*ared
= arch_eltdata (current
);
2528 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2529 + sizeof (struct ar_hdr
));
2530 firstreal
+= firstreal
% 2;
2531 current
= current
->archive_next
;
2533 while (current
!= map
[count
].u
.abfd
);
2536 /* The archive file format only has 4 bytes to store the offset
2537 of the member. Check to make sure that firstreal has not grown
2539 offset
= (unsigned int) firstreal
;
2540 if (firstreal
!= (file_ptr
) offset
)
2542 bfd_set_error (bfd_error_file_truncated
);
2547 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2548 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2549 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2554 /* Now write the strings themselves. */
2555 H_PUT_32 (arch
, stringsize
, temp
);
2556 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2558 for (count
= 0; count
< orl_count
; count
++)
2560 size_t len
= strlen (*map
[count
].name
) + 1;
2562 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2566 /* The spec sez this should be a newline. But in order to be
2567 bug-compatible for sun's ar we use a null. */
2570 if (bfd_bwrite ("", 1, arch
) != 1)
2577 /* At the end of archive file handling, update the timestamp in the
2578 file, so the linker will accept it.
2580 Return TRUE if the timestamp was OK, or an unusual problem happened.
2581 Return FALSE if we updated the timestamp. */
2584 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2586 struct stat archstat
;
2589 /* If creating deterministic archives, just leave the timestamp as-is. */
2590 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2593 /* Flush writes, get last-write timestamp from file, and compare it
2594 to the timestamp IN the file. */
2596 if (bfd_stat (arch
, &archstat
) == -1)
2598 bfd_perror (_("Reading archive file mod timestamp"));
2600 /* Can't read mod time for some reason. */
2603 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2604 /* OK by the linker's rules. */
2607 /* Update the timestamp. */
2608 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2610 /* Prepare an ASCII version suitable for writing. */
2611 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2612 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2613 bfd_ardata (arch
)->armap_timestamp
);
2615 /* Write it into the file. */
2616 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2617 + offsetof (struct ar_hdr
, ar_date
[0]));
2618 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2619 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2620 != sizeof (hdr
.ar_date
)))
2622 bfd_perror (_("Writing updated armap timestamp"));
2624 /* Some error while writing. */
2628 /* We updated the timestamp successfully. */
2632 /* A coff armap looks like :
2634 struct ar_hdr with name = '/'
2636 offset of file for symbol 0
2637 offset of file for symbol 1
2639 offset of file for symbol n-1
2646 _bfd_coff_write_armap (bfd
*arch
,
2647 unsigned int elength
,
2649 unsigned int symbol_count
,
2652 /* The size of the ranlib is the number of exported symbols in the
2653 archive * the number of bytes in an int, + an int for the count. */
2654 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2655 unsigned int stringsize
= stridx
;
2656 unsigned int mapsize
= stringsize
+ ranlibsize
;
2657 file_ptr archive_member_file_ptr
;
2658 file_ptr first_archive_member_file_ptr
;
2659 bfd
*current
= arch
->archive_head
;
2662 int padit
= mapsize
& 1;
2667 /* Work out where the first object file will go in the archive. */
2668 first_archive_member_file_ptr
= (mapsize
2670 + sizeof (struct ar_hdr
)
2674 current
= arch
->archive_head
;
2676 archive_member_file_ptr
= first_archive_member_file_ptr
;
2677 while (current
!= NULL
&& count
< symbol_count
)
2679 /* For each symbol which is used defined in this object, write
2680 out the object file's address in the archive. */
2682 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2684 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2686 /* Generate 64-bit archive if an archive is past its 4Gb
2688 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2689 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2690 symbol_count
, stridx
);
2693 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2694 if (! bfd_is_thin_archive (arch
))
2696 /* Add size of this archive entry. */
2697 archive_member_file_ptr
+= arelt_size (current
);
2698 /* Remember about the even alignment. */
2699 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2701 current
= current
->archive_next
;
2705 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2706 hdr
.ar_name
[0] = '/';
2707 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2709 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2710 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2711 ? time (NULL
) : 0));
2712 /* This, at least, is what Intel coff sets the values to. */
2713 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2714 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2715 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2716 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2718 /* Write the ar header for this item and the number of symbols. */
2719 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2720 != sizeof (struct ar_hdr
))
2723 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2726 /* Two passes, first write the file offsets for each symbol -
2727 remembering that each offset is on a two byte boundary. */
2729 /* Write out the file offset for the file associated with each
2730 symbol, and remember to keep the offsets padded out. */
2732 current
= arch
->archive_head
;
2734 archive_member_file_ptr
= first_archive_member_file_ptr
;
2735 while (current
!= NULL
&& count
< symbol_count
)
2737 /* For each symbol which is used defined in this object, write
2738 out the object file's address in the archive. */
2740 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2742 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2744 /* Catch an attempt to grow an archive past its 4Gb limit. */
2745 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2747 bfd_set_error (bfd_error_file_truncated
);
2750 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2754 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2755 if (! bfd_is_thin_archive (arch
))
2757 /* Add size of this archive entry. */
2758 archive_member_file_ptr
+= arelt_size (current
);
2759 /* Remember about the even alignment. */
2760 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2762 current
= current
->archive_next
;
2765 /* Now write the strings themselves. */
2766 for (count
= 0; count
< symbol_count
; count
++)
2768 size_t len
= strlen (*map
[count
].name
) + 1;
2770 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2774 /* The spec sez this should be a newline. But in order to be
2775 bug-compatible for arc960 we use a null. */
2778 if (bfd_bwrite ("", 1, arch
) != 1)
2786 _bfd_noarchive_write_armap
2787 (bfd
*arch ATTRIBUTE_UNUSED
,
2788 unsigned int elength ATTRIBUTE_UNUSED
,
2789 struct orl
*map ATTRIBUTE_UNUSED
,
2790 unsigned int orl_count ATTRIBUTE_UNUSED
,
2791 int stridx ATTRIBUTE_UNUSED
)
2797 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2799 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2801 bfd_close_all_done (ent
->arbfd
);
2806 _bfd_unlink_from_archive_parent (bfd
*abfd
)
2808 if (arch_eltdata (abfd
) != NULL
)
2810 struct areltdata
*ared
= arch_eltdata (abfd
);
2811 htab_t htab
= (htab_t
) ared
->parent_cache
;
2815 struct ar_cache ent
;
2818 ent
.ptr
= ared
->key
;
2819 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2822 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2823 htab_clear_slot (htab
, slot
);
2830 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2832 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2838 /* Close nested archives (if this bfd is a thin archive). */
2839 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2841 next
= nbfd
->archive_next
;
2845 htab
= bfd_ardata (abfd
)->cache
;
2848 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2850 bfd_ardata (abfd
)->cache
= NULL
;
2854 _bfd_unlink_from_archive_parent (abfd
);
2856 if (abfd
->is_linker_output
)
2857 (*abfd
->link
.hash
->hash_table_free
) (abfd
);