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
, bfd_get_filename (arch_bfd
)) == 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
, bfd_get_filename (abfd
)) == 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
;
492 bfd_size_type namelen
= 0;
493 bfd_size_type allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
496 unsigned int extra_size
= 0;
500 if (bfd_bread (hdrp
, sizeof (struct ar_hdr
), abfd
) != sizeof (struct ar_hdr
))
502 if (bfd_get_error () != bfd_error_system_call
)
503 bfd_set_error (bfd_error_no_more_archived_files
);
506 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
508 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
510 bfd_set_error (bfd_error_malformed_archive
);
515 fmag_save
= hdr
.ar_fmag
[0];
517 scan
= sscanf (hdr
.ar_size
, "%" BFD_VMA_FMT
"u", &parsed_size
);
518 hdr
.ar_fmag
[0] = fmag_save
;
521 bfd_set_error (bfd_error_malformed_archive
);
525 /* Extract the filename from the archive - there are two ways to
526 specify an extended name table, either the first char of the
527 name is a space, or it's a slash. */
528 if ((hdr
.ar_name
[0] == '/'
529 || (hdr
.ar_name
[0] == ' '
530 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
531 && bfd_ardata (abfd
)->extended_names
!= NULL
)
533 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
, &origin
);
534 if (filename
== NULL
)
537 /* BSD4.4-style long filename. */
538 else if (is_bsd44_extended_name (hdr
.ar_name
))
540 /* BSD-4.4 extended name */
541 namelen
= atoi (&hdr
.ar_name
[3]);
542 filesize
= bfd_get_file_size (abfd
);
543 if (namelen
> parsed_size
544 || namelen
> -allocsize
- 2
545 || (filesize
!= 0 && namelen
> filesize
))
547 bfd_set_error (bfd_error_malformed_archive
);
550 allocsize
+= namelen
+ 1;
551 parsed_size
-= namelen
;
552 extra_size
= namelen
;
554 allocptr
= (char *) bfd_malloc (allocsize
);
555 if (allocptr
== NULL
)
558 + sizeof (struct areltdata
)
559 + sizeof (struct ar_hdr
));
560 if (bfd_bread (filename
, namelen
, abfd
) != namelen
)
563 if (bfd_get_error () != bfd_error_system_call
)
564 bfd_set_error (bfd_error_no_more_archived_files
);
567 filename
[namelen
] = '\0';
571 /* We judge the end of the name by looking for '/' or ' '.
572 Note: The SYSV format (terminated by '/') allows embedded
573 spaces, so only look for ' ' if we don't find '/'. */
576 e
= (char *) memchr (hdr
.ar_name
, '\0', ar_maxnamelen (abfd
));
579 e
= (char *) memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
));
581 e
= (char *) memchr (hdr
.ar_name
, ' ', ar_maxnamelen (abfd
));
585 namelen
= e
- hdr
.ar_name
;
588 /* If we didn't find a termination character, then the name
589 must be the entire field. */
590 namelen
= ar_maxnamelen (abfd
);
593 allocsize
+= namelen
+ 1;
598 allocptr
= (char *) bfd_malloc (allocsize
);
599 if (allocptr
== NULL
)
603 memset (allocptr
, 0, sizeof (struct areltdata
));
604 ared
= (struct areltdata
*) allocptr
;
605 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
606 memcpy (ared
->arch_header
, &hdr
, sizeof (struct ar_hdr
));
607 ared
->parsed_size
= parsed_size
;
608 ared
->extra_size
= extra_size
;
609 ared
->origin
= origin
;
611 if (filename
!= NULL
)
612 ared
->filename
= filename
;
615 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
616 sizeof (struct ar_hdr
));
618 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
619 ared
->filename
[namelen
] = '\0';
625 /* Append the relative pathname for a member of the thin archive
626 to the pathname of the directory containing the archive. */
629 _bfd_append_relative_path (bfd
*arch
, char *elt_name
)
631 const char *arch_name
= bfd_get_filename (arch
);
632 const char *base_name
= lbasename (arch_name
);
636 if (base_name
== arch_name
)
639 prefix_len
= base_name
- arch_name
;
640 filename
= (char *) bfd_alloc (arch
, prefix_len
+ strlen (elt_name
) + 1);
641 if (filename
== NULL
)
644 strncpy (filename
, arch_name
, prefix_len
);
645 strcpy (filename
+ prefix_len
, elt_name
);
649 /* This is an internal function; it's mainly used when indexing
650 through the archive symbol table, but also used to get the next
651 element, since it handles the bookkeeping so nicely for us. */
654 _bfd_get_elt_at_filepos (bfd
*archive
, file_ptr filepos
)
656 struct areltdata
*new_areldata
;
660 n_bfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
664 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
667 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
670 filename
= new_areldata
->filename
;
672 if (bfd_is_thin_archive (archive
))
674 /* This is a proxy entry for an external file. */
675 if (! IS_ABSOLUTE_PATH (filename
))
677 filename
= _bfd_append_relative_path (archive
, filename
);
678 if (filename
== NULL
)
685 if (new_areldata
->origin
> 0)
687 /* This proxy entry refers to an element of a nested archive.
688 Locate the member of that archive and return a bfd for it. */
689 bfd
*ext_arch
= find_nested_archive (filename
, archive
);
692 || ! bfd_check_format (ext_arch
, bfd_archive
))
697 n_bfd
= _bfd_get_elt_at_filepos (ext_arch
, new_areldata
->origin
);
703 n_bfd
->proxy_origin
= bfd_tell (archive
);
705 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI
707 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
709 | BFD_COMPRESS_GABI
);
714 /* It's not an element of a nested archive;
715 open the external file as a bfd. */
716 n_bfd
= open_nested_file (filename
, archive
);
718 bfd_set_error (bfd_error_malformed_archive
);
722 n_bfd
= _bfd_create_empty_archive_element_shell (archive
);
731 n_bfd
->proxy_origin
= bfd_tell (archive
);
733 if (bfd_is_thin_archive (archive
))
739 n_bfd
->origin
= n_bfd
->proxy_origin
;
740 if (!bfd_set_filename (n_bfd
, filename
))
744 n_bfd
->arelt_data
= new_areldata
;
746 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
747 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
749 | BFD_COMPRESS_GABI
);
751 /* Copy is_linker_input. */
752 n_bfd
->is_linker_input
= archive
->is_linker_input
;
754 if (archive
->no_element_cache
755 || _bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
760 n_bfd
->arelt_data
= NULL
;
765 /* Return the BFD which is referenced by the symbol in ABFD indexed by
766 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
769 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
773 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
774 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
778 _bfd_noarchive_get_elt_at_index (bfd
*abfd
,
779 symindex sym_index ATTRIBUTE_UNUSED
)
781 return (bfd
*) _bfd_ptr_bfd_null_error (abfd
);
786 bfd_openr_next_archived_file
789 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
792 Provided a BFD, @var{archive}, containing an archive and NULL, open
793 an input BFD on the first contained element and returns that.
794 Subsequent calls should pass the archive and the previous return
795 value to return a created BFD to the next contained element. NULL
796 is returned when there are no more.
797 Note - if you want to process the bfd returned by this call be
798 sure to call bfd_check_format() on it first.
802 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
804 if ((bfd_get_format (archive
) != bfd_archive
)
805 || (archive
->direction
== write_direction
))
807 bfd_set_error (bfd_error_invalid_operation
);
811 return BFD_SEND (archive
,
812 openr_next_archived_file
, (archive
, last_file
));
816 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
821 filestart
= bfd_ardata (archive
)->first_file_filepos
;
824 filestart
= last_file
->proxy_origin
;
825 if (! bfd_is_thin_archive (archive
))
827 bfd_size_type size
= arelt_size (last_file
);
830 /* Pad to an even boundary...
831 Note that last_file->origin can be odd in the case of
832 BSD-4.4-style element with a long odd size. */
833 filestart
+= filestart
% 2;
834 if (filestart
< last_file
->proxy_origin
)
836 /* Prevent looping. See PR19256. */
837 bfd_set_error (bfd_error_malformed_archive
);
843 return _bfd_get_elt_at_filepos (archive
, filestart
);
847 _bfd_noarchive_openr_next_archived_file (bfd
*archive
,
848 bfd
*last_file ATTRIBUTE_UNUSED
)
850 return (bfd
*) _bfd_ptr_bfd_null_error (archive
);
854 bfd_generic_archive_p (bfd
*abfd
)
856 struct artdata
*tdata_hold
;
857 char armag
[SARMAG
+ 1];
860 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
862 if (bfd_get_error () != bfd_error_system_call
)
863 bfd_set_error (bfd_error_wrong_format
);
867 bfd_set_thin_archive (abfd
, strncmp (armag
, ARMAGT
, SARMAG
) == 0);
869 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
870 && ! bfd_is_thin_archive (abfd
))
872 bfd_set_error (bfd_error_wrong_format
);
876 tdata_hold
= bfd_ardata (abfd
);
878 amt
= sizeof (struct artdata
);
879 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
880 if (bfd_ardata (abfd
) == NULL
)
882 bfd_ardata (abfd
) = tdata_hold
;
886 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
887 /* Cleared by bfd_zalloc above.
888 bfd_ardata (abfd)->cache = NULL;
889 bfd_ardata (abfd)->archive_head = NULL;
890 bfd_ardata (abfd)->symdefs = NULL;
891 bfd_ardata (abfd)->extended_names = NULL;
892 bfd_ardata (abfd)->extended_names_size = 0;
893 bfd_ardata (abfd)->tdata = NULL; */
895 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
896 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
898 if (bfd_get_error () != bfd_error_system_call
)
899 bfd_set_error (bfd_error_wrong_format
);
900 bfd_release (abfd
, bfd_ardata (abfd
));
901 bfd_ardata (abfd
) = tdata_hold
;
905 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
910 /* This archive has a map, so we may presume that the contents
911 are object files. Make sure that if the first file in the
912 archive can be recognized as an object file, it is for this
913 target. If not, assume that this is the wrong format. If
914 the first file is not an object file, somebody is doing
915 something weird, and we permit it so that ar -t will work.
917 This is done because any normal format will recognize any
918 normal archive, regardless of the format of the object files.
919 We do accept an empty archive. */
921 save
= abfd
->no_element_cache
;
922 abfd
->no_element_cache
= 1;
923 first
= bfd_openr_next_archived_file (abfd
, NULL
);
924 abfd
->no_element_cache
= save
;
927 first
->target_defaulted
= FALSE
;
928 if (bfd_check_format (first
, bfd_object
)
929 && first
->xvec
!= abfd
->xvec
)
930 bfd_set_error (bfd_error_wrong_object_format
);
935 return _bfd_no_cleanup
;
938 /* Some constants for a 32 bit BSD archive structure. We do not
939 support 64 bit archives presently; so far as I know, none actually
940 exist. Supporting them would require changing these constants, and
941 changing some H_GET_32 to H_GET_64. */
943 /* The size of an external symdef structure. */
944 #define BSD_SYMDEF_SIZE 8
946 /* The offset from the start of a symdef structure to the file offset. */
947 #define BSD_SYMDEF_OFFSET_SIZE 4
949 /* The size of the symdef count. */
950 #define BSD_SYMDEF_COUNT_SIZE 4
952 /* The size of the string count. */
953 #define BSD_STRING_COUNT_SIZE 4
955 /* Read a BSD-style archive symbol table. Returns FALSE on error,
959 do_slurp_bsd_armap (bfd
*abfd
)
961 struct areltdata
*mapdata
;
963 bfd_byte
*raw_armap
, *rbase
;
964 struct artdata
*ardata
= bfd_ardata (abfd
);
966 bfd_size_type parsed_size
;
967 size_t amt
, string_size
;
970 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
973 parsed_size
= mapdata
->parsed_size
;
975 /* PR 17512: file: 883ff754. */
976 /* PR 17512: file: 0458885f. */
977 if (parsed_size
< BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
979 bfd_set_error (bfd_error_malformed_archive
);
983 raw_armap
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, parsed_size
, parsed_size
);
984 if (raw_armap
== NULL
)
987 parsed_size
-= BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
;
988 amt
= H_GET_32 (abfd
, raw_armap
);
989 if (amt
> parsed_size
990 || amt
% BSD_SYMDEF_SIZE
!= 0)
992 /* Probably we're using the wrong byte ordering. */
993 bfd_set_error (bfd_error_wrong_format
);
997 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
998 stringbase
= (char *) rbase
+ amt
+ BSD_STRING_COUNT_SIZE
;
999 string_size
= parsed_size
- amt
;
1001 ardata
->symdef_count
= amt
/ BSD_SYMDEF_SIZE
;
1002 if (_bfd_mul_overflow (ardata
->symdef_count
, sizeof (carsym
), &amt
))
1004 bfd_set_error (bfd_error_no_memory
);
1007 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1008 if (!ardata
->symdefs
)
1011 for (counter
= 0, set
= ardata
->symdefs
;
1012 counter
< ardata
->symdef_count
;
1013 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1015 unsigned nameoff
= H_GET_32 (abfd
, rbase
);
1016 if (nameoff
>= string_size
)
1018 bfd_set_error (bfd_error_malformed_archive
);
1021 set
->name
= stringbase
+ nameoff
;
1022 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1025 ardata
->first_file_filepos
= bfd_tell (abfd
);
1026 /* Pad to an even boundary if you have to. */
1027 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1028 /* FIXME, we should provide some way to free raw_ardata when
1029 we are done using the strings from it. For now, it seems
1030 to be allocated on an objalloc anyway... */
1031 abfd
->has_armap
= TRUE
;
1035 ardata
->symdef_count
= 0;
1036 ardata
->symdefs
= NULL
;
1037 bfd_release (abfd
, raw_armap
);
1041 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1045 do_slurp_coff_armap (bfd
*abfd
)
1047 struct areltdata
*mapdata
;
1048 int *raw_armap
, *rawptr
;
1049 struct artdata
*ardata
= bfd_ardata (abfd
);
1052 bfd_size_type stringsize
;
1053 bfd_size_type parsed_size
;
1055 size_t nsymz
, carsym_size
, ptrsize
, i
;
1057 bfd_vma (*swap
) (const void *);
1059 struct areltdata
*tmp
;
1061 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1062 if (mapdata
== NULL
)
1064 parsed_size
= mapdata
->parsed_size
;
1067 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1070 /* It seems that all numeric information in a coff archive is always
1071 in big endian format, no matter the host or target. */
1073 nsymz
= bfd_getb32 (int_buf
);
1075 /* The coff armap must be read sequentially. So we construct a
1076 bsd-style one in core all at once, for simplicity. */
1078 if (_bfd_mul_overflow (nsymz
, sizeof (carsym
), &carsym_size
))
1080 bfd_set_error (bfd_error_no_memory
);
1084 filesize
= bfd_get_file_size (abfd
);
1085 ptrsize
= 4 * nsymz
;
1086 if ((filesize
!= 0 && parsed_size
> filesize
)
1088 || parsed_size
- 4 < ptrsize
)
1090 bfd_set_error (bfd_error_malformed_archive
);
1094 stringsize
= parsed_size
- ptrsize
- 4;
1096 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1098 bfd_set_error (bfd_error_no_memory
);
1102 /* Allocate and read in the raw offsets. */
1103 raw_armap
= (int *) _bfd_malloc_and_read (abfd
, ptrsize
, ptrsize
);
1104 if (raw_armap
== NULL
)
1107 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
,
1108 carsym_size
+ stringsize
+ 1);
1109 if (ardata
->symdefs
== NULL
)
1111 carsyms
= ardata
->symdefs
;
1112 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1114 if (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
)
1115 goto release_symdefs
;
1117 /* OK, build the carsyms. */
1118 stringend
= stringbase
+ stringsize
;
1120 for (i
= 0; i
< nsymz
; i
++)
1122 rawptr
= raw_armap
+ i
;
1123 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1124 carsyms
->name
= stringbase
;
1125 stringbase
+= strlen (stringbase
);
1126 if (stringbase
!= stringend
)
1131 ardata
->symdef_count
= nsymz
;
1132 ardata
->first_file_filepos
= bfd_tell (abfd
);
1133 /* Pad to an even boundary if you have to. */
1134 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1135 if (bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
) != 0)
1136 goto release_symdefs
;
1138 abfd
->has_armap
= TRUE
;
1141 /* Check for a second archive header (as used by PE). */
1142 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1145 if (tmp
->arch_header
[0] == '/'
1146 && tmp
->arch_header
[1] == ' ')
1147 ardata
->first_file_filepos
1148 += (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1155 bfd_release (abfd
, (ardata
)->symdefs
);
1161 /* This routine can handle either coff-style or bsd-style armaps
1162 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1165 bfd_slurp_armap (bfd
*abfd
)
1168 int i
= bfd_bread (nextname
, 16, abfd
);
1175 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1178 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1179 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1180 return do_slurp_bsd_armap (abfd
);
1181 else if (CONST_STRNEQ (nextname
, "/ "))
1182 return do_slurp_coff_armap (abfd
);
1183 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1185 /* 64bit (Irix 6) archive. */
1187 return _bfd_archive_64_bit_slurp_armap (abfd
);
1189 bfd_set_error (bfd_error_wrong_format
);
1193 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1195 /* Mach-O has a special name for armap when the map is sorted by name.
1196 However because this name has a space it is slightly more difficult
1201 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1203 /* Read the extended name. We know its length. */
1204 if (bfd_bread (extname
, 20, abfd
) != 20)
1206 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1209 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1210 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1211 return do_slurp_bsd_armap (abfd
);
1214 abfd
->has_armap
= FALSE
;
1218 /** Extended name table.
1220 Normally archives support only 14-character filenames.
1222 Intel has extended the format: longer names are stored in a special
1223 element (the first in the archive, or second if there is an armap);
1224 the name in the ar_hdr is replaced by <space><index into filename
1225 element>. Index is the P.R. of an int (decimal). Data General have
1226 extended the format by using the prefix // for the special element. */
1228 /* Returns FALSE on error, TRUE otherwise. */
1231 _bfd_slurp_extended_name_table (bfd
*abfd
)
1235 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1236 we probably don't want to return TRUE. */
1237 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1240 if (bfd_bread (nextname
, 16, abfd
) == 16)
1242 struct areltdata
*namedata
;
1246 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1249 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1250 && ! CONST_STRNEQ (nextname
, "// "))
1252 bfd_ardata (abfd
)->extended_names
= NULL
;
1253 bfd_ardata (abfd
)->extended_names_size
= 0;
1257 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1258 if (namedata
== NULL
)
1261 filesize
= bfd_get_file_size (abfd
);
1262 amt
= namedata
->parsed_size
;
1263 if (amt
+ 1 == 0 || (filesize
!= 0 && amt
> filesize
))
1265 bfd_set_error (bfd_error_malformed_archive
);
1269 bfd_ardata (abfd
)->extended_names_size
= amt
;
1270 bfd_ardata (abfd
)->extended_names
= (char *) bfd_alloc (abfd
, amt
+ 1);
1271 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1275 bfd_ardata (abfd
)->extended_names
= NULL
;
1276 bfd_ardata (abfd
)->extended_names_size
= 0;
1280 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1282 if (bfd_get_error () != bfd_error_system_call
)
1283 bfd_set_error (bfd_error_malformed_archive
);
1284 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1285 bfd_ardata (abfd
)->extended_names
= NULL
;
1288 bfd_ardata (abfd
)->extended_names
[amt
] = 0;
1290 /* Since the archive is supposed to be printable if it contains
1291 text, the entries in the list are newline-padded, not null
1292 padded. In SVR4-style archives, the names also have a
1293 trailing '/'. DOS/NT created archive often have \ in them
1294 We'll fix all problems here. */
1296 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1297 char *temp
= ext_names
;
1298 char *limit
= temp
+ namedata
->parsed_size
;
1300 for (; temp
< limit
; ++temp
)
1302 if (*temp
== ARFMAG
[1])
1303 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1310 /* Pad to an even boundary if you have to. */
1311 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1312 bfd_ardata (abfd
)->first_file_filepos
+=
1313 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1322 /* Return a copy of the stuff in the filename between any :]> and a
1326 normalize (bfd
*abfd
, const char *file
)
1332 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1335 first
= file
+ strlen (file
) - 1;
1338 while (first
!= file
)
1342 if (*first
== ':' || *first
== ']' || *first
== '>')
1350 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1354 memcpy (copy
, first
, last
- first
);
1355 copy
[last
- first
] = 0;
1362 normalize (bfd
*abfd
, const char *file
)
1364 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1366 return lbasename (file
);
1370 /* Adjust a relative path name based on the reference path.
1373 Relative path Reference path Result
1374 ------------- -------------- ------
1376 foo/bar.o lib.a foo/bar.o
1377 bar.o foo/lib.a ../bar.o
1378 foo/bar.o baz/lib.a ../foo/bar.o
1379 bar.o ../lib.a <parent of current dir>/bar.o
1380 ; ../bar.o ../lib.a bar.o
1381 ; ../bar.o lib.a ../bar.o
1382 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1383 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1384 bar.o foo/baz/lib.a ../../bar.o
1386 Note - the semicolons above are there to prevent the BFD chew
1387 utility from interpreting those lines as prototypes to put into
1388 the autogenerated bfd.h header...
1390 Note - the string is returned in a static buffer. */
1393 adjust_relative_path (const char * path
, const char * ref_path
)
1395 static char *pathbuf
= NULL
;
1396 static unsigned int pathbuf_len
= 0;
1402 unsigned int dir_up
= 0;
1403 unsigned int dir_down
= 0;
1405 char * pwd
= getpwd ();
1408 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1409 lpath
= lrealpath (path
);
1410 pathp
= lpath
== NULL
? path
: lpath
;
1412 rpath
= lrealpath (ref_path
);
1413 refp
= rpath
== NULL
? ref_path
: rpath
;
1415 /* Remove common leading path elements. */
1418 const char *e1
= pathp
;
1419 const char *e2
= refp
;
1421 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1423 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1425 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1426 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1432 len
= strlen (pathp
) + 1;
1433 /* For each leading path element in the reference path,
1434 insert "../" into the path. */
1435 for (; *refp
; ++refp
)
1436 if (IS_DIR_SEPARATOR (*refp
))
1438 /* PR 12710: If the path element is "../" then instead of
1439 inserting "../" we need to insert the name of the directory
1440 at the current level. */
1441 if (refp
> ref_path
+ 1
1449 /* If the lrealpath calls above succeeded then we should never
1450 see dir_up and dir_down both being non-zero. */
1456 down
= pwd
+ strlen (pwd
) - 1;
1458 while (dir_down
&& down
> pwd
)
1460 if (IS_DIR_SEPARATOR (*down
))
1463 BFD_ASSERT (dir_down
== 0);
1464 len
+= strlen (down
) + 1;
1469 if (len
> pathbuf_len
)
1471 if (pathbuf
!= NULL
)
1474 pathbuf
= (char *) bfd_malloc (len
);
1475 if (pathbuf
== NULL
)
1481 while (dir_up
-- > 0)
1483 /* FIXME: Support Windows style path separators as well. */
1484 strcpy (newp
, "../");
1489 sprintf (newp
, "%s/%s", down
, pathp
);
1491 strcpy (newp
, pathp
);
1499 /* Build a BFD style extended name table. */
1502 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1504 bfd_size_type
*tablen
,
1507 *name
= "ARFILENAMES/";
1508 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1511 /* Build an SVR4 style extended name table. */
1514 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1516 bfd_size_type
*tablen
,
1520 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1524 _bfd_noarchive_construct_extended_name_table (bfd
*abfd ATTRIBUTE_UNUSED
,
1525 char **tabloc ATTRIBUTE_UNUSED
,
1526 bfd_size_type
*len ATTRIBUTE_UNUSED
,
1527 const char **name ATTRIBUTE_UNUSED
)
1532 /* Follows archive_head and produces an extended name table if
1533 necessary. Returns (in tabloc) a pointer to an extended name
1534 table, and in tablen the length of the table. If it makes an entry
1535 it clobbers the filename so that the element may be written without
1536 further massage. Returns TRUE if it ran successfully, FALSE if
1537 something went wrong. A successful return may still involve a
1538 zero-length tablen! */
1541 _bfd_construct_extended_name_table (bfd
*abfd
,
1542 bfd_boolean trailing_slash
,
1544 bfd_size_type
*tablen
)
1546 unsigned int maxname
= ar_maxnamelen (abfd
);
1547 bfd_size_type total_namelen
= 0;
1550 const char *last_filename
;
1554 last_filename
= NULL
;
1556 /* Figure out how long the table should be. */
1557 for (current
= abfd
->archive_head
;
1559 current
= current
->archive_next
)
1562 unsigned int thislen
;
1564 if (bfd_is_thin_archive (abfd
))
1566 const char *filename
= bfd_get_filename (current
);
1568 /* If the element being added is a member of another archive
1569 (i.e., we are flattening), use the containing archive's name. */
1570 if (current
->my_archive
1571 && ! bfd_is_thin_archive (current
->my_archive
))
1572 filename
= bfd_get_filename (current
->my_archive
);
1574 /* If the path is the same as the previous path seen,
1575 reuse it. This can happen when flattening a thin
1576 archive that contains other archives. */
1577 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1580 last_filename
= filename
;
1582 /* If the path is relative, adjust it relative to
1583 the containing archive. */
1584 if (! IS_ABSOLUTE_PATH (filename
)
1585 && ! IS_ABSOLUTE_PATH (bfd_get_filename (abfd
)))
1586 normal
= adjust_relative_path (filename
, bfd_get_filename (abfd
));
1590 /* In a thin archive, always store the full pathname
1591 in the extended name table. */
1592 total_namelen
+= strlen (normal
) + 1;
1594 /* Leave room for trailing slash. */
1600 normal
= normalize (abfd
, bfd_get_filename (current
));
1604 thislen
= strlen (normal
);
1606 if (thislen
> maxname
1607 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1610 if (thislen
> maxname
)
1612 /* Add one to leave room for \n. */
1613 total_namelen
+= thislen
+ 1;
1616 /* Leave room for trailing slash. */
1622 struct ar_hdr
*hdr
= arch_hdr (current
);
1623 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1624 || (thislen
< sizeof hdr
->ar_name
1625 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1627 /* Must have been using extended format even though it
1628 didn't need to. Fix it to use normal format. */
1629 memcpy (hdr
->ar_name
, normal
, thislen
);
1630 if (thislen
< maxname
1631 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1632 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1637 if (total_namelen
== 0)
1640 *tabloc
= (char *) bfd_alloc (abfd
, total_namelen
);
1641 if (*tabloc
== NULL
)
1644 *tablen
= total_namelen
;
1647 last_filename
= NULL
;
1650 for (current
= abfd
->archive_head
;
1652 current
= current
->archive_next
)
1655 unsigned int thislen
;
1657 const char *filename
= bfd_get_filename (current
);
1659 if (bfd_is_thin_archive (abfd
))
1661 /* If the element being added is a member of another archive
1662 (i.e., we are flattening), use the containing archive's name. */
1663 if (current
->my_archive
1664 && ! bfd_is_thin_archive (current
->my_archive
))
1665 filename
= bfd_get_filename (current
->my_archive
);
1666 /* If the path is the same as the previous path seen,
1667 reuse it. This can happen when flattening a thin
1668 archive that contains other archives.
1669 If the path is relative, adjust it relative to
1670 the containing archive. */
1671 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1672 normal
= last_filename
;
1673 else if (! IS_ABSOLUTE_PATH (filename
)
1674 && ! IS_ABSOLUTE_PATH (bfd_get_filename (abfd
)))
1675 normal
= adjust_relative_path (filename
, bfd_get_filename (abfd
));
1681 normal
= normalize (abfd
, filename
);
1686 thislen
= strlen (normal
);
1687 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1689 /* Works for now; may need to be re-engineered if we
1690 encounter an oddball archive format and want to
1691 generalise this hack. */
1692 struct ar_hdr
*hdr
= arch_hdr (current
);
1693 if (normal
== last_filename
)
1694 stroff
= last_stroff
;
1697 last_filename
= filename
;
1698 stroff
= strptr
- *tabloc
;
1699 last_stroff
= stroff
;
1700 memcpy (strptr
, normal
, thislen
);
1704 *strptr
++ = ARFMAG
[1];
1706 hdr
->ar_name
[0] = ar_padchar (current
);
1707 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1709 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1711 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1713 current
->origin
- sizeof (struct ar_hdr
));
1716 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1723 /* Do not construct an extended name table but transforms name field into
1724 its extended form. */
1727 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1729 bfd_size_type
*tablen
,
1732 unsigned int maxname
= ar_maxnamelen (abfd
);
1739 for (current
= abfd
->archive_head
;
1741 current
= current
->archive_next
)
1743 const char *normal
= normalize (abfd
, bfd_get_filename (current
));
1750 for (len
= 0; normal
[len
]; len
++)
1751 if (normal
[len
] == ' ')
1754 if (len
> maxname
|| has_space
)
1756 struct ar_hdr
*hdr
= arch_hdr (current
);
1758 len
= (len
+ 3) & ~3;
1759 arch_eltdata (current
)->extra_size
= len
;
1760 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1767 /* Write an archive header. */
1770 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1772 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1774 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1779 /* Write an archive header using BSD4.4 convention. */
1782 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1784 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1786 if (is_bsd44_extended_name (hdr
->ar_name
))
1788 /* This is a BSD 4.4 extended name. */
1789 const char *fullname
= normalize (abfd
, bfd_get_filename (abfd
));
1790 unsigned int len
= strlen (fullname
);
1791 unsigned int padded_len
= (len
+ 3) & ~3;
1793 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1795 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1796 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1799 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1802 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1807 static const char pad
[3] = { 0, 0, 0 };
1809 len
= 4 - (len
& 3);
1810 if (bfd_bwrite (pad
, len
, archive
) != len
)
1816 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1823 _bfd_noarchive_write_ar_hdr (bfd
*archive
, bfd
*abfd ATTRIBUTE_UNUSED
)
1825 return _bfd_bool_bfd_false_error (archive
);
1828 /* A couple of functions for creating ar_hdrs. */
1830 #ifdef HPUX_LARGE_AR_IDS
1831 /* Function to encode large UID/GID values according to HP. */
1834 hpux_uid_gid_encode (char str
[6], long int id
)
1838 str
[5] = '@' + (id
& 3);
1841 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1842 str
[cnt
] = ' ' + (id
& 0x3f);
1844 #endif /* HPUX_LARGE_AR_IDS */
1854 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1855 make one. The filename must refer to a filename in the filesystem.
1856 The filename field of the ar_hdr will NOT be initialized. If member
1857 is set, and it's an in-memory bfd, we fake it. */
1859 static struct areltdata
*
1860 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1863 struct areltdata
*ared
;
1867 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1869 /* Assume we just "made" the member, and fake it. */
1870 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1871 time (&status
.st_mtime
);
1872 status
.st_uid
= getuid ();
1873 status
.st_gid
= getgid ();
1874 status
.st_mode
= 0644;
1875 status
.st_size
= bim
->size
;
1877 else if (stat (filename
, &status
) != 0)
1879 bfd_set_error (bfd_error_system_call
);
1883 /* If the caller requested that the BFD generate deterministic output,
1884 fake values for modification time, UID, GID, and file mode. */
1885 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1887 status
.st_mtime
= 0;
1890 status
.st_mode
= 0644;
1893 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1894 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1897 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1899 /* ar headers are space padded, not null padded! */
1900 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1902 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1904 #ifdef HPUX_LARGE_AR_IDS
1905 /* HP has a very "special" way to handle UID/GID's with numeric values
1907 if (status
.st_uid
> 99999)
1908 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1911 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1913 #ifdef HPUX_LARGE_AR_IDS
1914 /* HP has a very "special" way to handle UID/GID's with numeric values
1916 if (status
.st_gid
> 99999)
1917 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1920 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1922 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1924 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1926 bfd_set_error (bfd_error_file_too_big
);
1930 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1935 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1936 ared
->parsed_size
= status
.st_size
;
1937 ared
->arch_header
= (char *) hdr
;
1942 /* Analogous to stat call. */
1945 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1950 if (abfd
->arelt_data
== NULL
)
1952 bfd_set_error (bfd_error_invalid_operation
);
1956 hdr
= arch_hdr (abfd
);
1957 /* PR 17512: file: 3d9e9fe9. */
1960 #define foo(arelt, stelt, size) \
1961 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1962 if (aloser == hdr->arelt) \
1965 /* Some platforms support special notations for large IDs. */
1966 #ifdef HPUX_LARGE_AR_IDS
1967 # define foo2(arelt, stelt, size) \
1968 if (hdr->arelt[5] == ' ') \
1970 foo (arelt, stelt, size); \
1975 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1977 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1980 buf->stelt += hdr->arelt[cnt] - ' '; \
1982 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1985 buf->stelt += hdr->arelt[5] - '@'; \
1988 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1991 foo (ar_date
, st_mtime
, 10);
1992 foo2 (ar_uid
, st_uid
, 10);
1993 foo2 (ar_gid
, st_gid
, 10);
1994 foo (ar_mode
, st_mode
, 8);
1996 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
2002 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2004 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2005 Fortunately ic960 users will never use that option. Fixing this
2006 is very hard; fortunately I know how to do it and will do so once
2007 intel's release is out the door. */
2009 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2011 const char *filename
;
2012 size_t maxlen
= ar_maxnamelen (abfd
);
2014 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2016 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2020 filename
= normalize (abfd
, pathname
);
2021 if (filename
== NULL
)
2027 length
= strlen (filename
);
2029 if (length
<= maxlen
)
2030 memcpy (hdr
->ar_name
, filename
, length
);
2032 /* Add the padding character if there is room for it. */
2034 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2035 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2039 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2041 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2043 const char *filename
= lbasename (pathname
);
2044 size_t maxlen
= ar_maxnamelen (abfd
);
2046 length
= strlen (filename
);
2048 if (length
<= maxlen
)
2049 memcpy (hdr
->ar_name
, filename
, length
);
2052 /* pathname: meet procrustes */
2053 memcpy (hdr
->ar_name
, filename
, maxlen
);
2057 if (length
< maxlen
)
2058 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2061 /* Store name into ar header. Truncates the name to fit.
2062 1> strip pathname to be just the basename.
2063 2> if it's short enuf to fit, stuff it in.
2064 3> If it doesn't end with .o, truncate it to fit
2065 4> truncate it before the .o, append .o, stuff THAT in. */
2067 /* This is what gnu ar does. It's better but incompatible with the
2071 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2073 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2075 const char *filename
= lbasename (pathname
);
2076 size_t maxlen
= ar_maxnamelen (abfd
);
2078 length
= strlen (filename
);
2080 if (length
<= maxlen
)
2081 memcpy (hdr
->ar_name
, filename
, length
);
2084 /* pathname: meet procrustes. */
2085 memcpy (hdr
->ar_name
, filename
, maxlen
);
2086 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2088 hdr
->ar_name
[maxlen
- 2] = '.';
2089 hdr
->ar_name
[maxlen
- 1] = 'o';
2095 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2099 _bfd_noarchive_truncate_arname (bfd
*abfd ATTRIBUTE_UNUSED
,
2100 const char *pathname ATTRIBUTE_UNUSED
,
2101 char *arhdr ATTRIBUTE_UNUSED
)
2105 /* The BFD is open for write and has its format set to bfd_archive. */
2108 _bfd_write_archive_contents (bfd
*arch
)
2111 char *etable
= NULL
;
2112 bfd_size_type elength
= 0;
2113 const char *ename
= NULL
;
2114 bfd_boolean makemap
= bfd_has_map (arch
);
2115 /* If no .o's, don't bother to make a map. */
2116 bfd_boolean hasobjects
= FALSE
;
2117 bfd_size_type wrote
;
2121 /* Verify the viability of all entries; if any of them live in the
2122 filesystem (as opposed to living in an archive open for input)
2123 then construct a fresh ar_hdr for them. */
2124 for (current
= arch
->archive_head
;
2126 current
= current
->archive_next
)
2128 /* This check is checking the bfds for the objects we're reading
2129 from (which are usually either an object file or archive on
2130 disk), not the archive entries we're writing to. We don't
2131 actually create bfds for the archive members, we just copy
2132 them byte-wise when we write out the archive. */
2133 if (bfd_write_p (current
))
2135 bfd_set_error (bfd_error_invalid_operation
);
2138 if (!current
->arelt_data
)
2140 current
->arelt_data
=
2141 bfd_ar_hdr_from_filesystem (arch
, bfd_get_filename (current
),
2143 if (!current
->arelt_data
)
2146 /* Put in the file name. */
2147 BFD_SEND (arch
, _bfd_truncate_arname
,
2148 (arch
, bfd_get_filename (current
),
2149 (char *) arch_hdr (current
)));
2152 if (makemap
&& ! hasobjects
)
2153 { /* Don't bother if we won't make a map! */
2154 if ((bfd_check_format (current
, bfd_object
)))
2159 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2160 (arch
, &etable
, &elength
, &ename
)))
2163 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2166 if (bfd_is_thin_archive (arch
))
2168 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2169 if (wrote
!= SARMAG
)
2172 if (makemap
&& hasobjects
)
2174 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2182 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2183 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2184 /* Round size up to even number in archive header. */
2185 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2186 (elength
+ 1) & ~(bfd_size_type
) 1))
2188 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2189 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2190 != sizeof (struct ar_hdr
))
2191 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2193 if ((elength
% 2) == 1)
2195 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2200 for (current
= arch
->archive_head
;
2202 current
= current
->archive_next
)
2204 char buffer
[DEFAULT_BUFFERSIZE
];
2205 bfd_size_type remaining
= arelt_size (current
);
2207 /* Write ar header. */
2208 if (!_bfd_write_ar_hdr (arch
, current
))
2210 if (bfd_is_thin_archive (arch
))
2212 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2217 size_t amt
= DEFAULT_BUFFERSIZE
;
2219 if (amt
> remaining
)
2222 if (bfd_bread (buffer
, amt
, current
) != amt
)
2224 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2229 if ((arelt_size (current
) % 2) == 1)
2231 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2236 if (makemap
&& hasobjects
)
2238 /* Verify the timestamp in the archive file. If it would not be
2239 accepted by the linker, rewrite it until it would be. If
2240 anything odd happens, break out and just return. (The
2241 Berkeley linker checks the timestamp and refuses to read the
2242 table-of-contents if it is >60 seconds less than the file's
2243 modified-time. That painful hack requires this painful hack. */
2247 if (bfd_update_armap_timestamp (arch
))
2250 (_("warning: writing archive was slow: rewriting timestamp"));
2252 while (++tries
< 6);
2258 bfd_set_input_error (current
, bfd_get_error ());
2262 /* Note that the namidx for the first symbol is 0. */
2265 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2267 char *first_name
= NULL
;
2269 file_ptr elt_no
= 0;
2270 struct orl
*map
= NULL
;
2271 unsigned int orl_max
= 1024; /* Fine initial default. */
2272 unsigned int orl_count
= 0;
2274 asymbol
**syms
= NULL
;
2278 static bfd_boolean report_plugin_err
= TRUE
;
2280 /* Dunno if this is the best place for this info... */
2282 elength
+= sizeof (struct ar_hdr
);
2283 elength
+= elength
% 2;
2285 amt
= orl_max
* sizeof (struct orl
);
2286 map
= (struct orl
*) bfd_malloc (amt
);
2290 /* We put the symbol names on the arch objalloc, and then discard
2292 first_name
= (char *) bfd_alloc (arch
, 1);
2293 if (first_name
== NULL
)
2296 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2297 while (arch
->archive_head
2298 && strcmp (bfd_get_filename (arch
->archive_head
), "__.SYMDEF") == 0)
2299 arch
->archive_head
= arch
->archive_head
->archive_next
;
2301 /* Map over each element. */
2302 for (current
= arch
->archive_head
;
2304 current
= current
->archive_next
, elt_no
++)
2306 if (bfd_check_format (current
, bfd_object
)
2307 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2313 if (current
->lto_slim_object
&& report_plugin_err
)
2315 report_plugin_err
= FALSE
;
2317 (_("%pB: plugin needed to handle lto object"),
2321 storage
= bfd_get_symtab_upper_bound (current
);
2327 if (storage
> syms_max
)
2332 syms
= (asymbol
**) bfd_malloc (syms_max
);
2336 symcount
= bfd_canonicalize_symtab (current
, syms
);
2340 /* Now map over all the symbols, picking out the ones we
2342 for (src_count
= 0; src_count
< symcount
; src_count
++)
2344 flagword flags
= (syms
[src_count
])->flags
;
2345 asection
*sec
= syms
[src_count
]->section
;
2347 if (((flags
& (BSF_GLOBAL
2350 | BSF_GNU_UNIQUE
)) != 0
2351 || bfd_is_com_section (sec
))
2352 && ! bfd_is_und_section (sec
))
2354 bfd_size_type namelen
;
2355 struct orl
*new_map
;
2357 /* This symbol will go into the archive header. */
2358 if (orl_count
== orl_max
)
2361 amt
= orl_max
* sizeof (struct orl
);
2362 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2363 if (new_map
== NULL
)
2369 if (syms
[src_count
]->name
[0] == '_'
2370 && syms
[src_count
]->name
[1] == '_'
2371 && strcmp (syms
[src_count
]->name
2372 + (syms
[src_count
]->name
[2] == '_'),
2373 "__gnu_lto_slim") == 0
2374 && report_plugin_err
)
2376 report_plugin_err
= FALSE
;
2378 (_("%pB: plugin needed to handle lto object"),
2381 namelen
= strlen (syms
[src_count
]->name
);
2382 amt
= sizeof (char *);
2383 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2384 if (map
[orl_count
].name
== NULL
)
2386 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2388 if (*(map
[orl_count
].name
) == NULL
)
2390 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2391 map
[orl_count
].u
.abfd
= current
;
2392 map
[orl_count
].namidx
= stridx
;
2394 stridx
+= namelen
+ 1;
2400 /* Now ask the BFD to free up any cached information, so we
2401 don't fill all of memory with symbol tables. */
2402 if (! bfd_free_cached_info (current
))
2407 /* OK, now we have collected all the data, let's write them out. */
2408 ret
= BFD_SEND (arch
, write_armap
,
2409 (arch
, elength
, map
, orl_count
, stridx
));
2415 if (first_name
!= NULL
)
2416 bfd_release (arch
, first_name
);
2425 if (first_name
!= NULL
)
2426 bfd_release (arch
, first_name
);
2432 _bfd_bsd_write_armap (bfd
*arch
,
2433 unsigned int elength
,
2435 unsigned int orl_count
,
2438 int padit
= stridx
& 1;
2439 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2440 unsigned int stringsize
= stridx
+ padit
;
2441 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2442 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2443 file_ptr firstreal
, first
;
2451 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2455 current
= arch
->archive_head
;
2456 last_elt
= current
; /* Last element arch seen. */
2457 for (count
= 0; count
< orl_count
; count
++)
2459 unsigned int offset
;
2461 if (map
[count
].u
.abfd
!= last_elt
)
2465 struct areltdata
*ared
= arch_eltdata (current
);
2467 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2468 + sizeof (struct ar_hdr
));
2469 firstreal
+= firstreal
% 2;
2470 current
= current
->archive_next
;
2472 while (current
!= map
[count
].u
.abfd
);
2475 /* The archive file format only has 4 bytes to store the offset
2476 of the member. Generate 64-bit archive if an archive is past
2478 offset
= (unsigned int) firstreal
;
2479 if (firstreal
!= (file_ptr
) offset
)
2480 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2487 /* If deterministic, we use 0 as the timestamp in the map.
2488 Some linkers may require that the archive filesystem modification
2489 time is less than (or near to) the archive map timestamp. Those
2490 linkers should not be used with deterministic mode. (GNU ld and
2491 Gold do not have this restriction.) */
2492 bfd_ardata (arch
)->armap_timestamp
= 0;
2495 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2497 struct stat statbuf
;
2499 if (stat (bfd_get_filename (arch
), &statbuf
) == 0)
2500 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2501 + ARMAP_TIME_OFFSET
);
2506 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2507 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2508 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2509 + offsetof (struct ar_hdr
, ar_date
[0]));
2510 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2511 bfd_ardata (arch
)->armap_timestamp
);
2512 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2513 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2514 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2516 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2517 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2518 != sizeof (struct ar_hdr
))
2520 H_PUT_32 (arch
, ranlibsize
, temp
);
2521 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2525 current
= arch
->archive_head
;
2526 last_elt
= current
; /* Last element arch seen. */
2527 for (count
= 0; count
< orl_count
; count
++)
2529 unsigned int offset
;
2530 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2532 if (map
[count
].u
.abfd
!= last_elt
)
2536 struct areltdata
*ared
= arch_eltdata (current
);
2538 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2539 + sizeof (struct ar_hdr
));
2540 firstreal
+= firstreal
% 2;
2541 current
= current
->archive_next
;
2543 while (current
!= map
[count
].u
.abfd
);
2546 /* The archive file format only has 4 bytes to store the offset
2547 of the member. Check to make sure that firstreal has not grown
2549 offset
= (unsigned int) firstreal
;
2550 if (firstreal
!= (file_ptr
) offset
)
2552 bfd_set_error (bfd_error_file_truncated
);
2557 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2558 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2559 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2564 /* Now write the strings themselves. */
2565 H_PUT_32 (arch
, stringsize
, temp
);
2566 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2568 for (count
= 0; count
< orl_count
; count
++)
2570 size_t len
= strlen (*map
[count
].name
) + 1;
2572 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2576 /* The spec sez this should be a newline. But in order to be
2577 bug-compatible for sun's ar we use a null. */
2580 if (bfd_bwrite ("", 1, arch
) != 1)
2587 /* At the end of archive file handling, update the timestamp in the
2588 file, so the linker will accept it.
2590 Return TRUE if the timestamp was OK, or an unusual problem happened.
2591 Return FALSE if we updated the timestamp. */
2594 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2596 struct stat archstat
;
2599 /* If creating deterministic archives, just leave the timestamp as-is. */
2600 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2603 /* Flush writes, get last-write timestamp from file, and compare it
2604 to the timestamp IN the file. */
2606 if (bfd_stat (arch
, &archstat
) == -1)
2608 bfd_perror (_("Reading archive file mod timestamp"));
2610 /* Can't read mod time for some reason. */
2613 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2614 /* OK by the linker's rules. */
2617 /* Update the timestamp. */
2618 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2620 /* Prepare an ASCII version suitable for writing. */
2621 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2622 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2623 bfd_ardata (arch
)->armap_timestamp
);
2625 /* Write it into the file. */
2626 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2627 + offsetof (struct ar_hdr
, ar_date
[0]));
2628 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2629 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2630 != sizeof (hdr
.ar_date
)))
2632 bfd_perror (_("Writing updated armap timestamp"));
2634 /* Some error while writing. */
2638 /* We updated the timestamp successfully. */
2642 /* A coff armap looks like :
2644 struct ar_hdr with name = '/'
2646 offset of file for symbol 0
2647 offset of file for symbol 1
2649 offset of file for symbol n-1
2656 _bfd_coff_write_armap (bfd
*arch
,
2657 unsigned int elength
,
2659 unsigned int symbol_count
,
2662 /* The size of the ranlib is the number of exported symbols in the
2663 archive * the number of bytes in an int, + an int for the count. */
2664 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2665 unsigned int stringsize
= stridx
;
2666 unsigned int mapsize
= stringsize
+ ranlibsize
;
2667 file_ptr archive_member_file_ptr
;
2668 file_ptr first_archive_member_file_ptr
;
2669 bfd
*current
= arch
->archive_head
;
2672 int padit
= mapsize
& 1;
2677 /* Work out where the first object file will go in the archive. */
2678 first_archive_member_file_ptr
= (mapsize
2680 + sizeof (struct ar_hdr
)
2684 current
= arch
->archive_head
;
2686 archive_member_file_ptr
= first_archive_member_file_ptr
;
2687 while (current
!= NULL
&& count
< symbol_count
)
2689 /* For each symbol which is used defined in this object, write
2690 out the object file's address in the archive. */
2692 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2694 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2696 /* Generate 64-bit archive if an archive is past its 4Gb
2698 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2699 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2700 symbol_count
, stridx
);
2703 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2704 if (! bfd_is_thin_archive (arch
))
2706 /* Add size of this archive entry. */
2707 archive_member_file_ptr
+= arelt_size (current
);
2708 /* Remember about the even alignment. */
2709 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2711 current
= current
->archive_next
;
2715 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2716 hdr
.ar_name
[0] = '/';
2717 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2719 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2720 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2721 ? time (NULL
) : 0));
2722 /* This, at least, is what Intel coff sets the values to. */
2723 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2724 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2725 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2726 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2728 /* Write the ar header for this item and the number of symbols. */
2729 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2730 != sizeof (struct ar_hdr
))
2733 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2736 /* Two passes, first write the file offsets for each symbol -
2737 remembering that each offset is on a two byte boundary. */
2739 /* Write out the file offset for the file associated with each
2740 symbol, and remember to keep the offsets padded out. */
2742 current
= arch
->archive_head
;
2744 archive_member_file_ptr
= first_archive_member_file_ptr
;
2745 while (current
!= NULL
&& count
< symbol_count
)
2747 /* For each symbol which is used defined in this object, write
2748 out the object file's address in the archive. */
2750 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2752 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2754 /* Catch an attempt to grow an archive past its 4Gb limit. */
2755 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2757 bfd_set_error (bfd_error_file_truncated
);
2760 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2764 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2765 if (! bfd_is_thin_archive (arch
))
2767 /* Add size of this archive entry. */
2768 archive_member_file_ptr
+= arelt_size (current
);
2769 /* Remember about the even alignment. */
2770 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2772 current
= current
->archive_next
;
2775 /* Now write the strings themselves. */
2776 for (count
= 0; count
< symbol_count
; count
++)
2778 size_t len
= strlen (*map
[count
].name
) + 1;
2780 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2784 /* The spec sez this should be a newline. But in order to be
2785 bug-compatible for arc960 we use a null. */
2788 if (bfd_bwrite ("", 1, arch
) != 1)
2796 _bfd_noarchive_write_armap
2797 (bfd
*arch ATTRIBUTE_UNUSED
,
2798 unsigned int elength ATTRIBUTE_UNUSED
,
2799 struct orl
*map ATTRIBUTE_UNUSED
,
2800 unsigned int orl_count ATTRIBUTE_UNUSED
,
2801 int stridx ATTRIBUTE_UNUSED
)
2807 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2809 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2811 bfd_close_all_done (ent
->arbfd
);
2816 _bfd_unlink_from_archive_parent (bfd
*abfd
)
2818 if (arch_eltdata (abfd
) != NULL
)
2820 struct areltdata
*ared
= arch_eltdata (abfd
);
2821 htab_t htab
= (htab_t
) ared
->parent_cache
;
2825 struct ar_cache ent
;
2828 ent
.ptr
= ared
->key
;
2829 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2832 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2833 htab_clear_slot (htab
, slot
);
2840 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2842 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2848 /* Close nested archives (if this bfd is a thin archive). */
2849 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2851 next
= nbfd
->archive_next
;
2855 htab
= bfd_ardata (abfd
)->cache
;
2858 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2860 bfd_ardata (abfd
)->cache
= NULL
;
2864 _bfd_unlink_from_archive_parent (abfd
);
2866 if (abfd
->is_linker_output
)
2867 (*abfd
->link
.hash
->hash_table_free
) (abfd
);