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 n_bfd
->filename
= bfd_strdup (filename
);
741 if (n_bfd
->filename
== NULL
)
745 n_bfd
->arelt_data
= new_areldata
;
747 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
748 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
750 | BFD_COMPRESS_GABI
);
752 /* Copy is_linker_input. */
753 n_bfd
->is_linker_input
= archive
->is_linker_input
;
755 if (archive
->no_element_cache
756 || _bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
761 n_bfd
->arelt_data
= NULL
;
766 /* Return the BFD which is referenced by the symbol in ABFD indexed by
767 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
770 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
774 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
775 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
779 _bfd_noarchive_get_elt_at_index (bfd
*abfd
,
780 symindex sym_index ATTRIBUTE_UNUSED
)
782 return (bfd
*) _bfd_ptr_bfd_null_error (abfd
);
787 bfd_openr_next_archived_file
790 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
793 Provided a BFD, @var{archive}, containing an archive and NULL, open
794 an input BFD on the first contained element and returns that.
795 Subsequent calls should pass the archive and the previous return
796 value to return a created BFD to the next contained element. NULL
797 is returned when there are no more.
798 Note - if you want to process the bfd returned by this call be
799 sure to call bfd_check_format() on it first.
803 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
805 if ((bfd_get_format (archive
) != bfd_archive
)
806 || (archive
->direction
== write_direction
))
808 bfd_set_error (bfd_error_invalid_operation
);
812 return BFD_SEND (archive
,
813 openr_next_archived_file
, (archive
, last_file
));
817 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
822 filestart
= bfd_ardata (archive
)->first_file_filepos
;
825 filestart
= last_file
->proxy_origin
;
826 if (! bfd_is_thin_archive (archive
))
828 bfd_size_type size
= arelt_size (last_file
);
831 /* Pad to an even boundary...
832 Note that last_file->origin can be odd in the case of
833 BSD-4.4-style element with a long odd size. */
834 filestart
+= filestart
% 2;
835 if (filestart
< last_file
->proxy_origin
)
837 /* Prevent looping. See PR19256. */
838 bfd_set_error (bfd_error_malformed_archive
);
844 return _bfd_get_elt_at_filepos (archive
, filestart
);
848 _bfd_noarchive_openr_next_archived_file (bfd
*archive
,
849 bfd
*last_file ATTRIBUTE_UNUSED
)
851 return (bfd
*) _bfd_ptr_bfd_null_error (archive
);
855 bfd_generic_archive_p (bfd
*abfd
)
857 struct artdata
*tdata_hold
;
858 char armag
[SARMAG
+ 1];
861 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
863 if (bfd_get_error () != bfd_error_system_call
)
864 bfd_set_error (bfd_error_wrong_format
);
868 bfd_set_thin_archive (abfd
, strncmp (armag
, ARMAGT
, SARMAG
) == 0);
870 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
871 && ! bfd_is_thin_archive (abfd
))
873 bfd_set_error (bfd_error_wrong_format
);
877 tdata_hold
= bfd_ardata (abfd
);
879 amt
= sizeof (struct artdata
);
880 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
881 if (bfd_ardata (abfd
) == NULL
)
883 bfd_ardata (abfd
) = tdata_hold
;
887 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
888 /* Cleared by bfd_zalloc above.
889 bfd_ardata (abfd)->cache = NULL;
890 bfd_ardata (abfd)->archive_head = NULL;
891 bfd_ardata (abfd)->symdefs = NULL;
892 bfd_ardata (abfd)->extended_names = NULL;
893 bfd_ardata (abfd)->extended_names_size = 0;
894 bfd_ardata (abfd)->tdata = NULL; */
896 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
897 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
899 if (bfd_get_error () != bfd_error_system_call
)
900 bfd_set_error (bfd_error_wrong_format
);
901 bfd_release (abfd
, bfd_ardata (abfd
));
902 bfd_ardata (abfd
) = tdata_hold
;
906 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
911 /* This archive has a map, so we may presume that the contents
912 are object files. Make sure that if the first file in the
913 archive can be recognized as an object file, it is for this
914 target. If not, assume that this is the wrong format. If
915 the first file is not an object file, somebody is doing
916 something weird, and we permit it so that ar -t will work.
918 This is done because any normal format will recognize any
919 normal archive, regardless of the format of the object files.
920 We do accept an empty archive. */
922 save
= abfd
->no_element_cache
;
923 abfd
->no_element_cache
= 1;
924 first
= bfd_openr_next_archived_file (abfd
, NULL
);
925 abfd
->no_element_cache
= save
;
928 first
->target_defaulted
= FALSE
;
929 if (bfd_check_format (first
, bfd_object
)
930 && first
->xvec
!= abfd
->xvec
)
931 bfd_set_error (bfd_error_wrong_object_format
);
936 return _bfd_no_cleanup
;
939 /* Some constants for a 32 bit BSD archive structure. We do not
940 support 64 bit archives presently; so far as I know, none actually
941 exist. Supporting them would require changing these constants, and
942 changing some H_GET_32 to H_GET_64. */
944 /* The size of an external symdef structure. */
945 #define BSD_SYMDEF_SIZE 8
947 /* The offset from the start of a symdef structure to the file offset. */
948 #define BSD_SYMDEF_OFFSET_SIZE 4
950 /* The size of the symdef count. */
951 #define BSD_SYMDEF_COUNT_SIZE 4
953 /* The size of the string count. */
954 #define BSD_STRING_COUNT_SIZE 4
956 /* Read a BSD-style archive symbol table. Returns FALSE on error,
960 do_slurp_bsd_armap (bfd
*abfd
)
962 struct areltdata
*mapdata
;
964 bfd_byte
*raw_armap
, *rbase
;
965 struct artdata
*ardata
= bfd_ardata (abfd
);
967 bfd_size_type parsed_size
;
968 size_t amt
, string_size
;
971 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
974 parsed_size
= mapdata
->parsed_size
;
976 /* PR 17512: file: 883ff754. */
977 /* PR 17512: file: 0458885f. */
978 if (parsed_size
< BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
)
980 bfd_set_error (bfd_error_malformed_archive
);
984 raw_armap
= (bfd_byte
*) _bfd_alloc_and_read (abfd
, parsed_size
, parsed_size
);
985 if (raw_armap
== NULL
)
988 parsed_size
-= BSD_SYMDEF_COUNT_SIZE
+ BSD_STRING_COUNT_SIZE
;
989 amt
= H_GET_32 (abfd
, raw_armap
);
990 if (amt
> parsed_size
991 || amt
% BSD_SYMDEF_SIZE
!= 0)
993 /* Probably we're using the wrong byte ordering. */
994 bfd_set_error (bfd_error_wrong_format
);
998 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
999 stringbase
= (char *) rbase
+ amt
+ BSD_STRING_COUNT_SIZE
;
1000 string_size
= parsed_size
- amt
;
1002 ardata
->symdef_count
= amt
/ BSD_SYMDEF_SIZE
;
1003 if (_bfd_mul_overflow (ardata
->symdef_count
, sizeof (carsym
), &amt
))
1005 bfd_set_error (bfd_error_no_memory
);
1008 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
1009 if (!ardata
->symdefs
)
1012 for (counter
= 0, set
= ardata
->symdefs
;
1013 counter
< ardata
->symdef_count
;
1014 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1016 unsigned nameoff
= H_GET_32 (abfd
, rbase
);
1017 if (nameoff
>= string_size
)
1019 bfd_set_error (bfd_error_malformed_archive
);
1022 set
->name
= stringbase
+ nameoff
;
1023 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1026 ardata
->first_file_filepos
= bfd_tell (abfd
);
1027 /* Pad to an even boundary if you have to. */
1028 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1029 /* FIXME, we should provide some way to free raw_ardata when
1030 we are done using the strings from it. For now, it seems
1031 to be allocated on an objalloc anyway... */
1032 abfd
->has_armap
= TRUE
;
1036 ardata
->symdef_count
= 0;
1037 ardata
->symdefs
= NULL
;
1038 bfd_release (abfd
, raw_armap
);
1042 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1046 do_slurp_coff_armap (bfd
*abfd
)
1048 struct areltdata
*mapdata
;
1049 int *raw_armap
, *rawptr
;
1050 struct artdata
*ardata
= bfd_ardata (abfd
);
1053 bfd_size_type stringsize
;
1054 bfd_size_type parsed_size
;
1056 size_t nsymz
, carsym_size
, ptrsize
, i
;
1058 bfd_vma (*swap
) (const void *);
1060 struct areltdata
*tmp
;
1062 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1063 if (mapdata
== NULL
)
1065 parsed_size
= mapdata
->parsed_size
;
1068 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1071 /* It seems that all numeric information in a coff archive is always
1072 in big endian format, no matter the host or target. */
1074 nsymz
= bfd_getb32 (int_buf
);
1076 /* The coff armap must be read sequentially. So we construct a
1077 bsd-style one in core all at once, for simplicity. */
1079 if (_bfd_mul_overflow (nsymz
, sizeof (carsym
), &carsym_size
))
1081 bfd_set_error (bfd_error_no_memory
);
1085 filesize
= bfd_get_file_size (abfd
);
1086 ptrsize
= 4 * nsymz
;
1087 if ((filesize
!= 0 && parsed_size
> filesize
)
1089 || parsed_size
- 4 < ptrsize
)
1091 bfd_set_error (bfd_error_malformed_archive
);
1095 stringsize
= parsed_size
- ptrsize
- 4;
1097 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1099 bfd_set_error (bfd_error_no_memory
);
1103 /* Allocate and read in the raw offsets. */
1104 raw_armap
= (int *) _bfd_malloc_and_read (abfd
, ptrsize
, ptrsize
);
1105 if (raw_armap
== NULL
)
1108 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
,
1109 carsym_size
+ stringsize
+ 1);
1110 if (ardata
->symdefs
== NULL
)
1112 carsyms
= ardata
->symdefs
;
1113 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1115 if (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
)
1116 goto release_symdefs
;
1118 /* OK, build the carsyms. */
1119 stringend
= stringbase
+ stringsize
;
1121 for (i
= 0; i
< nsymz
; i
++)
1123 rawptr
= raw_armap
+ i
;
1124 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1125 carsyms
->name
= stringbase
;
1126 stringbase
+= strlen (stringbase
);
1127 if (stringbase
!= stringend
)
1132 ardata
->symdef_count
= nsymz
;
1133 ardata
->first_file_filepos
= bfd_tell (abfd
);
1134 /* Pad to an even boundary if you have to. */
1135 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1136 if (bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
) != 0)
1137 goto release_symdefs
;
1139 abfd
->has_armap
= TRUE
;
1142 /* Check for a second archive header (as used by PE). */
1143 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1146 if (tmp
->arch_header
[0] == '/'
1147 && tmp
->arch_header
[1] == ' ')
1148 ardata
->first_file_filepos
1149 += (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1156 bfd_release (abfd
, (ardata
)->symdefs
);
1162 /* This routine can handle either coff-style or bsd-style armaps
1163 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1166 bfd_slurp_armap (bfd
*abfd
)
1169 int i
= bfd_bread (nextname
, 16, abfd
);
1176 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1179 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1180 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1181 return do_slurp_bsd_armap (abfd
);
1182 else if (CONST_STRNEQ (nextname
, "/ "))
1183 return do_slurp_coff_armap (abfd
);
1184 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1186 /* 64bit (Irix 6) archive. */
1188 return _bfd_archive_64_bit_slurp_armap (abfd
);
1190 bfd_set_error (bfd_error_wrong_format
);
1194 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1196 /* Mach-O has a special name for armap when the map is sorted by name.
1197 However because this name has a space it is slightly more difficult
1202 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1204 /* Read the extended name. We know its length. */
1205 if (bfd_bread (extname
, 20, abfd
) != 20)
1207 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1210 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1211 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1212 return do_slurp_bsd_armap (abfd
);
1215 abfd
->has_armap
= FALSE
;
1219 /** Extended name table.
1221 Normally archives support only 14-character filenames.
1223 Intel has extended the format: longer names are stored in a special
1224 element (the first in the archive, or second if there is an armap);
1225 the name in the ar_hdr is replaced by <space><index into filename
1226 element>. Index is the P.R. of an int (decimal). Data General have
1227 extended the format by using the prefix // for the special element. */
1229 /* Returns FALSE on error, TRUE otherwise. */
1232 _bfd_slurp_extended_name_table (bfd
*abfd
)
1236 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1237 we probably don't want to return TRUE. */
1238 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1241 if (bfd_bread (nextname
, 16, abfd
) == 16)
1243 struct areltdata
*namedata
;
1247 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1250 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1251 && ! CONST_STRNEQ (nextname
, "// "))
1253 bfd_ardata (abfd
)->extended_names
= NULL
;
1254 bfd_ardata (abfd
)->extended_names_size
= 0;
1258 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1259 if (namedata
== NULL
)
1262 filesize
= bfd_get_file_size (abfd
);
1263 amt
= namedata
->parsed_size
;
1264 if (amt
+ 1 == 0 || (filesize
!= 0 && amt
> filesize
))
1266 bfd_set_error (bfd_error_malformed_archive
);
1270 bfd_ardata (abfd
)->extended_names_size
= amt
;
1271 bfd_ardata (abfd
)->extended_names
= (char *) bfd_alloc (abfd
, amt
+ 1);
1272 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1276 bfd_ardata (abfd
)->extended_names
= NULL
;
1277 bfd_ardata (abfd
)->extended_names_size
= 0;
1281 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1283 if (bfd_get_error () != bfd_error_system_call
)
1284 bfd_set_error (bfd_error_malformed_archive
);
1285 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1286 bfd_ardata (abfd
)->extended_names
= NULL
;
1289 bfd_ardata (abfd
)->extended_names
[amt
] = 0;
1291 /* Since the archive is supposed to be printable if it contains
1292 text, the entries in the list are newline-padded, not null
1293 padded. In SVR4-style archives, the names also have a
1294 trailing '/'. DOS/NT created archive often have \ in them
1295 We'll fix all problems here. */
1297 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1298 char *temp
= ext_names
;
1299 char *limit
= temp
+ namedata
->parsed_size
;
1301 for (; temp
< limit
; ++temp
)
1303 if (*temp
== ARFMAG
[1])
1304 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1311 /* Pad to an even boundary if you have to. */
1312 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1313 bfd_ardata (abfd
)->first_file_filepos
+=
1314 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1323 /* Return a copy of the stuff in the filename between any :]> and a
1327 normalize (bfd
*abfd
, const char *file
)
1333 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1336 first
= file
+ strlen (file
) - 1;
1339 while (first
!= file
)
1343 if (*first
== ':' || *first
== ']' || *first
== '>')
1351 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1355 memcpy (copy
, first
, last
- first
);
1356 copy
[last
- first
] = 0;
1363 normalize (bfd
*abfd
, const char *file
)
1365 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1367 return lbasename (file
);
1371 /* Adjust a relative path name based on the reference path.
1374 Relative path Reference path Result
1375 ------------- -------------- ------
1377 foo/bar.o lib.a foo/bar.o
1378 bar.o foo/lib.a ../bar.o
1379 foo/bar.o baz/lib.a ../foo/bar.o
1380 bar.o ../lib.a <parent of current dir>/bar.o
1381 ; ../bar.o ../lib.a bar.o
1382 ; ../bar.o lib.a ../bar.o
1383 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1384 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1385 bar.o foo/baz/lib.a ../../bar.o
1387 Note - the semicolons above are there to prevent the BFD chew
1388 utility from interpreting those lines as prototypes to put into
1389 the autogenerated bfd.h header...
1391 Note - the string is returned in a static buffer. */
1394 adjust_relative_path (const char * path
, const char * ref_path
)
1396 static char *pathbuf
= NULL
;
1397 static unsigned int pathbuf_len
= 0;
1403 unsigned int dir_up
= 0;
1404 unsigned int dir_down
= 0;
1406 char * pwd
= getpwd ();
1409 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1410 lpath
= lrealpath (path
);
1411 pathp
= lpath
== NULL
? path
: lpath
;
1413 rpath
= lrealpath (ref_path
);
1414 refp
= rpath
== NULL
? ref_path
: rpath
;
1416 /* Remove common leading path elements. */
1419 const char *e1
= pathp
;
1420 const char *e2
= refp
;
1422 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1424 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1426 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1427 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1433 len
= strlen (pathp
) + 1;
1434 /* For each leading path element in the reference path,
1435 insert "../" into the path. */
1436 for (; *refp
; ++refp
)
1437 if (IS_DIR_SEPARATOR (*refp
))
1439 /* PR 12710: If the path element is "../" then instead of
1440 inserting "../" we need to insert the name of the directory
1441 at the current level. */
1442 if (refp
> ref_path
+ 1
1450 /* If the lrealpath calls above succeeded then we should never
1451 see dir_up and dir_down both being non-zero. */
1457 down
= pwd
+ strlen (pwd
) - 1;
1459 while (dir_down
&& down
> pwd
)
1461 if (IS_DIR_SEPARATOR (*down
))
1464 BFD_ASSERT (dir_down
== 0);
1465 len
+= strlen (down
) + 1;
1470 if (len
> pathbuf_len
)
1472 if (pathbuf
!= NULL
)
1475 pathbuf
= (char *) bfd_malloc (len
);
1476 if (pathbuf
== NULL
)
1482 while (dir_up
-- > 0)
1484 /* FIXME: Support Windows style path separators as well. */
1485 strcpy (newp
, "../");
1490 sprintf (newp
, "%s/%s", down
, pathp
);
1492 strcpy (newp
, pathp
);
1500 /* Build a BFD style extended name table. */
1503 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1505 bfd_size_type
*tablen
,
1508 *name
= "ARFILENAMES/";
1509 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1512 /* Build an SVR4 style extended name table. */
1515 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1517 bfd_size_type
*tablen
,
1521 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1525 _bfd_noarchive_construct_extended_name_table (bfd
*abfd ATTRIBUTE_UNUSED
,
1526 char **tabloc ATTRIBUTE_UNUSED
,
1527 bfd_size_type
*len ATTRIBUTE_UNUSED
,
1528 const char **name ATTRIBUTE_UNUSED
)
1533 /* Follows archive_head and produces an extended name table if
1534 necessary. Returns (in tabloc) a pointer to an extended name
1535 table, and in tablen the length of the table. If it makes an entry
1536 it clobbers the filename so that the element may be written without
1537 further massage. Returns TRUE if it ran successfully, FALSE if
1538 something went wrong. A successful return may still involve a
1539 zero-length tablen! */
1542 _bfd_construct_extended_name_table (bfd
*abfd
,
1543 bfd_boolean trailing_slash
,
1545 bfd_size_type
*tablen
)
1547 unsigned int maxname
= ar_maxnamelen (abfd
);
1548 bfd_size_type total_namelen
= 0;
1551 const char *last_filename
;
1555 last_filename
= NULL
;
1557 /* Figure out how long the table should be. */
1558 for (current
= abfd
->archive_head
;
1560 current
= current
->archive_next
)
1563 unsigned int thislen
;
1565 if (bfd_is_thin_archive (abfd
))
1567 const char *filename
= bfd_get_filename (current
);
1569 /* If the element being added is a member of another archive
1570 (i.e., we are flattening), use the containing archive's name. */
1571 if (current
->my_archive
1572 && ! bfd_is_thin_archive (current
->my_archive
))
1573 filename
= bfd_get_filename (current
->my_archive
);
1575 /* If the path is the same as the previous path seen,
1576 reuse it. This can happen when flattening a thin
1577 archive that contains other archives. */
1578 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1581 last_filename
= filename
;
1583 /* If the path is relative, adjust it relative to
1584 the containing archive. */
1585 if (! IS_ABSOLUTE_PATH (filename
)
1586 && ! IS_ABSOLUTE_PATH (bfd_get_filename (abfd
)))
1587 normal
= adjust_relative_path (filename
, bfd_get_filename (abfd
));
1591 /* In a thin archive, always store the full pathname
1592 in the extended name table. */
1593 total_namelen
+= strlen (normal
) + 1;
1595 /* Leave room for trailing slash. */
1601 normal
= normalize (abfd
, bfd_get_filename (current
));
1605 thislen
= strlen (normal
);
1607 if (thislen
> maxname
1608 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1611 if (thislen
> maxname
)
1613 /* Add one to leave room for \n. */
1614 total_namelen
+= thislen
+ 1;
1617 /* Leave room for trailing slash. */
1623 struct ar_hdr
*hdr
= arch_hdr (current
);
1624 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1625 || (thislen
< sizeof hdr
->ar_name
1626 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1628 /* Must have been using extended format even though it
1629 didn't need to. Fix it to use normal format. */
1630 memcpy (hdr
->ar_name
, normal
, thislen
);
1631 if (thislen
< maxname
1632 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1633 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1638 if (total_namelen
== 0)
1641 *tabloc
= (char *) bfd_alloc (abfd
, total_namelen
);
1642 if (*tabloc
== NULL
)
1645 *tablen
= total_namelen
;
1648 last_filename
= NULL
;
1651 for (current
= abfd
->archive_head
;
1653 current
= current
->archive_next
)
1656 unsigned int thislen
;
1658 const char *filename
= bfd_get_filename (current
);
1660 if (bfd_is_thin_archive (abfd
))
1662 /* If the element being added is a member of another archive
1663 (i.e., we are flattening), use the containing archive's name. */
1664 if (current
->my_archive
1665 && ! bfd_is_thin_archive (current
->my_archive
))
1666 filename
= bfd_get_filename (current
->my_archive
);
1667 /* If the path is the same as the previous path seen,
1668 reuse it. This can happen when flattening a thin
1669 archive that contains other archives.
1670 If the path is relative, adjust it relative to
1671 the containing archive. */
1672 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1673 normal
= last_filename
;
1674 else if (! IS_ABSOLUTE_PATH (filename
)
1675 && ! IS_ABSOLUTE_PATH (bfd_get_filename (abfd
)))
1676 normal
= adjust_relative_path (filename
, bfd_get_filename (abfd
));
1682 normal
= normalize (abfd
, filename
);
1687 thislen
= strlen (normal
);
1688 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1690 /* Works for now; may need to be re-engineered if we
1691 encounter an oddball archive format and want to
1692 generalise this hack. */
1693 struct ar_hdr
*hdr
= arch_hdr (current
);
1694 if (normal
== last_filename
)
1695 stroff
= last_stroff
;
1698 last_filename
= filename
;
1699 stroff
= strptr
- *tabloc
;
1700 last_stroff
= stroff
;
1701 memcpy (strptr
, normal
, thislen
);
1705 *strptr
++ = ARFMAG
[1];
1707 hdr
->ar_name
[0] = ar_padchar (current
);
1708 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1710 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1712 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1714 current
->origin
- sizeof (struct ar_hdr
));
1717 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1724 /* Do not construct an extended name table but transforms name field into
1725 its extended form. */
1728 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1730 bfd_size_type
*tablen
,
1733 unsigned int maxname
= ar_maxnamelen (abfd
);
1740 for (current
= abfd
->archive_head
;
1742 current
= current
->archive_next
)
1744 const char *normal
= normalize (abfd
, bfd_get_filename (current
));
1751 for (len
= 0; normal
[len
]; len
++)
1752 if (normal
[len
] == ' ')
1755 if (len
> maxname
|| has_space
)
1757 struct ar_hdr
*hdr
= arch_hdr (current
);
1759 len
= (len
+ 3) & ~3;
1760 arch_eltdata (current
)->extra_size
= len
;
1761 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1768 /* Write an archive header. */
1771 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1773 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1775 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1780 /* Write an archive header using BSD4.4 convention. */
1783 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1785 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1787 if (is_bsd44_extended_name (hdr
->ar_name
))
1789 /* This is a BSD 4.4 extended name. */
1790 const char *fullname
= normalize (abfd
, bfd_get_filename (abfd
));
1791 unsigned int len
= strlen (fullname
);
1792 unsigned int padded_len
= (len
+ 3) & ~3;
1794 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1796 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1797 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1800 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1803 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1808 static const char pad
[3] = { 0, 0, 0 };
1810 len
= 4 - (len
& 3);
1811 if (bfd_bwrite (pad
, len
, archive
) != len
)
1817 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1824 _bfd_noarchive_write_ar_hdr (bfd
*archive
, bfd
*abfd ATTRIBUTE_UNUSED
)
1826 return _bfd_bool_bfd_false_error (archive
);
1829 /* A couple of functions for creating ar_hdrs. */
1831 #ifdef HPUX_LARGE_AR_IDS
1832 /* Function to encode large UID/GID values according to HP. */
1835 hpux_uid_gid_encode (char str
[6], long int id
)
1839 str
[5] = '@' + (id
& 3);
1842 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1843 str
[cnt
] = ' ' + (id
& 0x3f);
1845 #endif /* HPUX_LARGE_AR_IDS */
1855 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1856 make one. The filename must refer to a filename in the filesystem.
1857 The filename field of the ar_hdr will NOT be initialized. If member
1858 is set, and it's an in-memory bfd, we fake it. */
1860 static struct areltdata
*
1861 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1864 struct areltdata
*ared
;
1868 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1870 /* Assume we just "made" the member, and fake it. */
1871 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1872 time (&status
.st_mtime
);
1873 status
.st_uid
= getuid ();
1874 status
.st_gid
= getgid ();
1875 status
.st_mode
= 0644;
1876 status
.st_size
= bim
->size
;
1878 else if (stat (filename
, &status
) != 0)
1880 bfd_set_error (bfd_error_system_call
);
1884 /* If the caller requested that the BFD generate deterministic output,
1885 fake values for modification time, UID, GID, and file mode. */
1886 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1888 status
.st_mtime
= 0;
1891 status
.st_mode
= 0644;
1894 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1895 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1898 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1900 /* ar headers are space padded, not null padded! */
1901 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1903 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
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_uid
> 99999)
1909 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1912 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1914 #ifdef HPUX_LARGE_AR_IDS
1915 /* HP has a very "special" way to handle UID/GID's with numeric values
1917 if (status
.st_gid
> 99999)
1918 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1921 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1923 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1925 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1927 bfd_set_error (bfd_error_file_too_big
);
1931 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1936 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1937 ared
->parsed_size
= status
.st_size
;
1938 ared
->arch_header
= (char *) hdr
;
1943 /* Analogous to stat call. */
1946 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1951 if (abfd
->arelt_data
== NULL
)
1953 bfd_set_error (bfd_error_invalid_operation
);
1957 hdr
= arch_hdr (abfd
);
1958 /* PR 17512: file: 3d9e9fe9. */
1961 #define foo(arelt, stelt, size) \
1962 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1963 if (aloser == hdr->arelt) \
1966 /* Some platforms support special notations for large IDs. */
1967 #ifdef HPUX_LARGE_AR_IDS
1968 # define foo2(arelt, stelt, size) \
1969 if (hdr->arelt[5] == ' ') \
1971 foo (arelt, stelt, size); \
1976 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1978 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1981 buf->stelt += hdr->arelt[cnt] - ' '; \
1983 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1986 buf->stelt += hdr->arelt[5] - '@'; \
1989 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1992 foo (ar_date
, st_mtime
, 10);
1993 foo2 (ar_uid
, st_uid
, 10);
1994 foo2 (ar_gid
, st_gid
, 10);
1995 foo (ar_mode
, st_mode
, 8);
1997 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
2003 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2005 /* FIXME: This interacts unpleasantly with ar's quick-append option.
2006 Fortunately ic960 users will never use that option. Fixing this
2007 is very hard; fortunately I know how to do it and will do so once
2008 intel's release is out the door. */
2010 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2012 const char *filename
;
2013 size_t maxlen
= ar_maxnamelen (abfd
);
2015 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
2017 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
2021 filename
= normalize (abfd
, pathname
);
2022 if (filename
== NULL
)
2028 length
= strlen (filename
);
2030 if (length
<= maxlen
)
2031 memcpy (hdr
->ar_name
, filename
, length
);
2033 /* Add the padding character if there is room for it. */
2035 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2036 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2040 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2042 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2044 const char *filename
= lbasename (pathname
);
2045 size_t maxlen
= ar_maxnamelen (abfd
);
2047 length
= strlen (filename
);
2049 if (length
<= maxlen
)
2050 memcpy (hdr
->ar_name
, filename
, length
);
2053 /* pathname: meet procrustes */
2054 memcpy (hdr
->ar_name
, filename
, maxlen
);
2058 if (length
< maxlen
)
2059 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2062 /* Store name into ar header. Truncates the name to fit.
2063 1> strip pathname to be just the basename.
2064 2> if it's short enuf to fit, stuff it in.
2065 3> If it doesn't end with .o, truncate it to fit
2066 4> truncate it before the .o, append .o, stuff THAT in. */
2068 /* This is what gnu ar does. It's better but incompatible with the
2072 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2074 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2076 const char *filename
= lbasename (pathname
);
2077 size_t maxlen
= ar_maxnamelen (abfd
);
2079 length
= strlen (filename
);
2081 if (length
<= maxlen
)
2082 memcpy (hdr
->ar_name
, filename
, length
);
2085 /* pathname: meet procrustes. */
2086 memcpy (hdr
->ar_name
, filename
, maxlen
);
2087 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2089 hdr
->ar_name
[maxlen
- 2] = '.';
2090 hdr
->ar_name
[maxlen
- 1] = 'o';
2096 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2100 _bfd_noarchive_truncate_arname (bfd
*abfd ATTRIBUTE_UNUSED
,
2101 const char *pathname ATTRIBUTE_UNUSED
,
2102 char *arhdr ATTRIBUTE_UNUSED
)
2106 /* The BFD is open for write and has its format set to bfd_archive. */
2109 _bfd_write_archive_contents (bfd
*arch
)
2112 char *etable
= NULL
;
2113 bfd_size_type elength
= 0;
2114 const char *ename
= NULL
;
2115 bfd_boolean makemap
= bfd_has_map (arch
);
2116 /* If no .o's, don't bother to make a map. */
2117 bfd_boolean hasobjects
= FALSE
;
2118 bfd_size_type wrote
;
2122 /* Verify the viability of all entries; if any of them live in the
2123 filesystem (as opposed to living in an archive open for input)
2124 then construct a fresh ar_hdr for them. */
2125 for (current
= arch
->archive_head
;
2127 current
= current
->archive_next
)
2129 /* This check is checking the bfds for the objects we're reading
2130 from (which are usually either an object file or archive on
2131 disk), not the archive entries we're writing to. We don't
2132 actually create bfds for the archive members, we just copy
2133 them byte-wise when we write out the archive. */
2134 if (bfd_write_p (current
))
2136 bfd_set_error (bfd_error_invalid_operation
);
2139 if (!current
->arelt_data
)
2141 current
->arelt_data
=
2142 bfd_ar_hdr_from_filesystem (arch
, bfd_get_filename (current
),
2144 if (!current
->arelt_data
)
2147 /* Put in the file name. */
2148 BFD_SEND (arch
, _bfd_truncate_arname
,
2149 (arch
, bfd_get_filename (current
),
2150 (char *) arch_hdr (current
)));
2153 if (makemap
&& ! hasobjects
)
2154 { /* Don't bother if we won't make a map! */
2155 if ((bfd_check_format (current
, bfd_object
)))
2160 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2161 (arch
, &etable
, &elength
, &ename
)))
2164 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2167 if (bfd_is_thin_archive (arch
))
2169 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2170 if (wrote
!= SARMAG
)
2173 if (makemap
&& hasobjects
)
2175 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2183 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2184 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2185 /* Round size up to even number in archive header. */
2186 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2187 (elength
+ 1) & ~(bfd_size_type
) 1))
2189 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2190 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2191 != sizeof (struct ar_hdr
))
2192 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2194 if ((elength
% 2) == 1)
2196 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2201 for (current
= arch
->archive_head
;
2203 current
= current
->archive_next
)
2205 char buffer
[DEFAULT_BUFFERSIZE
];
2206 bfd_size_type remaining
= arelt_size (current
);
2208 /* Write ar header. */
2209 if (!_bfd_write_ar_hdr (arch
, current
))
2211 if (bfd_is_thin_archive (arch
))
2213 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2218 size_t amt
= DEFAULT_BUFFERSIZE
;
2220 if (amt
> remaining
)
2223 if (bfd_bread (buffer
, amt
, current
) != amt
)
2225 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2230 if ((arelt_size (current
) % 2) == 1)
2232 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2237 if (makemap
&& hasobjects
)
2239 /* Verify the timestamp in the archive file. If it would not be
2240 accepted by the linker, rewrite it until it would be. If
2241 anything odd happens, break out and just return. (The
2242 Berkeley linker checks the timestamp and refuses to read the
2243 table-of-contents if it is >60 seconds less than the file's
2244 modified-time. That painful hack requires this painful hack. */
2248 if (bfd_update_armap_timestamp (arch
))
2251 (_("warning: writing archive was slow: rewriting timestamp"));
2253 while (++tries
< 6);
2259 bfd_set_input_error (current
, bfd_get_error ());
2263 /* Note that the namidx for the first symbol is 0. */
2266 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2268 char *first_name
= NULL
;
2270 file_ptr elt_no
= 0;
2271 struct orl
*map
= NULL
;
2272 unsigned int orl_max
= 1024; /* Fine initial default. */
2273 unsigned int orl_count
= 0;
2275 asymbol
**syms
= NULL
;
2279 static bfd_boolean report_plugin_err
= TRUE
;
2281 /* Dunno if this is the best place for this info... */
2283 elength
+= sizeof (struct ar_hdr
);
2284 elength
+= elength
% 2;
2286 amt
= orl_max
* sizeof (struct orl
);
2287 map
= (struct orl
*) bfd_malloc (amt
);
2291 /* We put the symbol names on the arch objalloc, and then discard
2293 first_name
= (char *) bfd_alloc (arch
, 1);
2294 if (first_name
== NULL
)
2297 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2298 while (arch
->archive_head
2299 && strcmp (bfd_get_filename (arch
->archive_head
), "__.SYMDEF") == 0)
2300 arch
->archive_head
= arch
->archive_head
->archive_next
;
2302 /* Map over each element. */
2303 for (current
= arch
->archive_head
;
2305 current
= current
->archive_next
, elt_no
++)
2307 if (bfd_check_format (current
, bfd_object
)
2308 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2314 if (current
->lto_slim_object
&& report_plugin_err
)
2316 report_plugin_err
= FALSE
;
2318 (_("%pB: plugin needed to handle lto object"),
2322 storage
= bfd_get_symtab_upper_bound (current
);
2328 if (storage
> syms_max
)
2333 syms
= (asymbol
**) bfd_malloc (syms_max
);
2337 symcount
= bfd_canonicalize_symtab (current
, syms
);
2341 /* Now map over all the symbols, picking out the ones we
2343 for (src_count
= 0; src_count
< symcount
; src_count
++)
2345 flagword flags
= (syms
[src_count
])->flags
;
2346 asection
*sec
= syms
[src_count
]->section
;
2348 if (((flags
& (BSF_GLOBAL
2351 | BSF_GNU_UNIQUE
)) != 0
2352 || bfd_is_com_section (sec
))
2353 && ! bfd_is_und_section (sec
))
2355 bfd_size_type namelen
;
2356 struct orl
*new_map
;
2358 /* This symbol will go into the archive header. */
2359 if (orl_count
== orl_max
)
2362 amt
= orl_max
* sizeof (struct orl
);
2363 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2364 if (new_map
== NULL
)
2370 if (syms
[src_count
]->name
[0] == '_'
2371 && syms
[src_count
]->name
[1] == '_'
2372 && strcmp (syms
[src_count
]->name
2373 + (syms
[src_count
]->name
[2] == '_'),
2374 "__gnu_lto_slim") == 0
2375 && report_plugin_err
)
2377 report_plugin_err
= FALSE
;
2379 (_("%pB: plugin needed to handle lto object"),
2382 namelen
= strlen (syms
[src_count
]->name
);
2383 amt
= sizeof (char *);
2384 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2385 if (map
[orl_count
].name
== NULL
)
2387 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2389 if (*(map
[orl_count
].name
) == NULL
)
2391 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2392 map
[orl_count
].u
.abfd
= current
;
2393 map
[orl_count
].namidx
= stridx
;
2395 stridx
+= namelen
+ 1;
2401 /* Now ask the BFD to free up any cached information, so we
2402 don't fill all of memory with symbol tables. */
2403 if (! bfd_free_cached_info (current
))
2408 /* OK, now we have collected all the data, let's write them out. */
2409 ret
= BFD_SEND (arch
, write_armap
,
2410 (arch
, elength
, map
, orl_count
, stridx
));
2416 if (first_name
!= NULL
)
2417 bfd_release (arch
, first_name
);
2426 if (first_name
!= NULL
)
2427 bfd_release (arch
, first_name
);
2433 _bfd_bsd_write_armap (bfd
*arch
,
2434 unsigned int elength
,
2436 unsigned int orl_count
,
2439 int padit
= stridx
& 1;
2440 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2441 unsigned int stringsize
= stridx
+ padit
;
2442 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2443 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2444 file_ptr firstreal
, first
;
2452 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2456 current
= arch
->archive_head
;
2457 last_elt
= current
; /* Last element arch seen. */
2458 for (count
= 0; count
< orl_count
; count
++)
2460 unsigned int offset
;
2462 if (map
[count
].u
.abfd
!= last_elt
)
2466 struct areltdata
*ared
= arch_eltdata (current
);
2468 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2469 + sizeof (struct ar_hdr
));
2470 firstreal
+= firstreal
% 2;
2471 current
= current
->archive_next
;
2473 while (current
!= map
[count
].u
.abfd
);
2476 /* The archive file format only has 4 bytes to store the offset
2477 of the member. Generate 64-bit archive if an archive is past
2479 offset
= (unsigned int) firstreal
;
2480 if (firstreal
!= (file_ptr
) offset
)
2481 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2488 /* If deterministic, we use 0 as the timestamp in the map.
2489 Some linkers may require that the archive filesystem modification
2490 time is less than (or near to) the archive map timestamp. Those
2491 linkers should not be used with deterministic mode. (GNU ld and
2492 Gold do not have this restriction.) */
2493 bfd_ardata (arch
)->armap_timestamp
= 0;
2496 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2498 struct stat statbuf
;
2500 if (stat (bfd_get_filename (arch
), &statbuf
) == 0)
2501 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2502 + ARMAP_TIME_OFFSET
);
2507 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2508 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2509 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2510 + offsetof (struct ar_hdr
, ar_date
[0]));
2511 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2512 bfd_ardata (arch
)->armap_timestamp
);
2513 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2514 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2515 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2517 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2518 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2519 != sizeof (struct ar_hdr
))
2521 H_PUT_32 (arch
, ranlibsize
, temp
);
2522 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2526 current
= arch
->archive_head
;
2527 last_elt
= current
; /* Last element arch seen. */
2528 for (count
= 0; count
< orl_count
; count
++)
2530 unsigned int offset
;
2531 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2533 if (map
[count
].u
.abfd
!= last_elt
)
2537 struct areltdata
*ared
= arch_eltdata (current
);
2539 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2540 + sizeof (struct ar_hdr
));
2541 firstreal
+= firstreal
% 2;
2542 current
= current
->archive_next
;
2544 while (current
!= map
[count
].u
.abfd
);
2547 /* The archive file format only has 4 bytes to store the offset
2548 of the member. Check to make sure that firstreal has not grown
2550 offset
= (unsigned int) firstreal
;
2551 if (firstreal
!= (file_ptr
) offset
)
2553 bfd_set_error (bfd_error_file_truncated
);
2558 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2559 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2560 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2565 /* Now write the strings themselves. */
2566 H_PUT_32 (arch
, stringsize
, temp
);
2567 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2569 for (count
= 0; count
< orl_count
; count
++)
2571 size_t len
= strlen (*map
[count
].name
) + 1;
2573 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2577 /* The spec sez this should be a newline. But in order to be
2578 bug-compatible for sun's ar we use a null. */
2581 if (bfd_bwrite ("", 1, arch
) != 1)
2588 /* At the end of archive file handling, update the timestamp in the
2589 file, so the linker will accept it.
2591 Return TRUE if the timestamp was OK, or an unusual problem happened.
2592 Return FALSE if we updated the timestamp. */
2595 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2597 struct stat archstat
;
2600 /* If creating deterministic archives, just leave the timestamp as-is. */
2601 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2604 /* Flush writes, get last-write timestamp from file, and compare it
2605 to the timestamp IN the file. */
2607 if (bfd_stat (arch
, &archstat
) == -1)
2609 bfd_perror (_("Reading archive file mod timestamp"));
2611 /* Can't read mod time for some reason. */
2614 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2615 /* OK by the linker's rules. */
2618 /* Update the timestamp. */
2619 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2621 /* Prepare an ASCII version suitable for writing. */
2622 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2623 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2624 bfd_ardata (arch
)->armap_timestamp
);
2626 /* Write it into the file. */
2627 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2628 + offsetof (struct ar_hdr
, ar_date
[0]));
2629 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2630 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2631 != sizeof (hdr
.ar_date
)))
2633 bfd_perror (_("Writing updated armap timestamp"));
2635 /* Some error while writing. */
2639 /* We updated the timestamp successfully. */
2643 /* A coff armap looks like :
2645 struct ar_hdr with name = '/'
2647 offset of file for symbol 0
2648 offset of file for symbol 1
2650 offset of file for symbol n-1
2657 _bfd_coff_write_armap (bfd
*arch
,
2658 unsigned int elength
,
2660 unsigned int symbol_count
,
2663 /* The size of the ranlib is the number of exported symbols in the
2664 archive * the number of bytes in an int, + an int for the count. */
2665 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2666 unsigned int stringsize
= stridx
;
2667 unsigned int mapsize
= stringsize
+ ranlibsize
;
2668 file_ptr archive_member_file_ptr
;
2669 file_ptr first_archive_member_file_ptr
;
2670 bfd
*current
= arch
->archive_head
;
2673 int padit
= mapsize
& 1;
2678 /* Work out where the first object file will go in the archive. */
2679 first_archive_member_file_ptr
= (mapsize
2681 + sizeof (struct ar_hdr
)
2685 current
= arch
->archive_head
;
2687 archive_member_file_ptr
= first_archive_member_file_ptr
;
2688 while (current
!= NULL
&& count
< symbol_count
)
2690 /* For each symbol which is used defined in this object, write
2691 out the object file's address in the archive. */
2693 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2695 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2697 /* Generate 64-bit archive if an archive is past its 4Gb
2699 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2700 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2701 symbol_count
, stridx
);
2704 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2705 if (! bfd_is_thin_archive (arch
))
2707 /* Add size of this archive entry. */
2708 archive_member_file_ptr
+= arelt_size (current
);
2709 /* Remember about the even alignment. */
2710 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2712 current
= current
->archive_next
;
2716 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2717 hdr
.ar_name
[0] = '/';
2718 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2720 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2721 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2722 ? time (NULL
) : 0));
2723 /* This, at least, is what Intel coff sets the values to. */
2724 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2725 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2726 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2727 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2729 /* Write the ar header for this item and the number of symbols. */
2730 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2731 != sizeof (struct ar_hdr
))
2734 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2737 /* Two passes, first write the file offsets for each symbol -
2738 remembering that each offset is on a two byte boundary. */
2740 /* Write out the file offset for the file associated with each
2741 symbol, and remember to keep the offsets padded out. */
2743 current
= arch
->archive_head
;
2745 archive_member_file_ptr
= first_archive_member_file_ptr
;
2746 while (current
!= NULL
&& count
< symbol_count
)
2748 /* For each symbol which is used defined in this object, write
2749 out the object file's address in the archive. */
2751 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2753 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2755 /* Catch an attempt to grow an archive past its 4Gb limit. */
2756 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2758 bfd_set_error (bfd_error_file_truncated
);
2761 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2765 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2766 if (! bfd_is_thin_archive (arch
))
2768 /* Add size of this archive entry. */
2769 archive_member_file_ptr
+= arelt_size (current
);
2770 /* Remember about the even alignment. */
2771 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2773 current
= current
->archive_next
;
2776 /* Now write the strings themselves. */
2777 for (count
= 0; count
< symbol_count
; count
++)
2779 size_t len
= strlen (*map
[count
].name
) + 1;
2781 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2785 /* The spec sez this should be a newline. But in order to be
2786 bug-compatible for arc960 we use a null. */
2789 if (bfd_bwrite ("", 1, arch
) != 1)
2797 _bfd_noarchive_write_armap
2798 (bfd
*arch ATTRIBUTE_UNUSED
,
2799 unsigned int elength ATTRIBUTE_UNUSED
,
2800 struct orl
*map ATTRIBUTE_UNUSED
,
2801 unsigned int orl_count ATTRIBUTE_UNUSED
,
2802 int stridx ATTRIBUTE_UNUSED
)
2808 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2810 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2812 bfd_close_all_done (ent
->arbfd
);
2817 _bfd_unlink_from_archive_parent (bfd
*abfd
)
2819 if (arch_eltdata (abfd
) != NULL
)
2821 struct areltdata
*ared
= arch_eltdata (abfd
);
2822 htab_t htab
= (htab_t
) ared
->parent_cache
;
2826 struct ar_cache ent
;
2829 ent
.ptr
= ared
->key
;
2830 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2833 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2834 htab_clear_slot (htab
, slot
);
2841 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2843 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2849 /* Close nested archives (if this bfd is a thin archive). */
2850 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2852 next
= nbfd
->archive_next
;
2856 htab
= bfd_ardata (abfd
)->cache
;
2859 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2861 bfd_ardata (abfd
)->cache
= NULL
;
2865 _bfd_unlink_from_archive_parent (abfd
);
2867 if (abfd
->is_linker_output
)
2868 (*abfd
->link
.hash
->hash_table_free
) (abfd
);