1 /* BFD back-end for archive files (libraries).
2 Copyright (C) 1990-2019 Free Software Foundation, Inc.
3 Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 @setfilename archive-info
27 An archive (or library) is just another BFD. It has a symbol
28 table, although there's not much a user program will do with it.
30 The big difference between an archive BFD and an ordinary BFD
31 is that the archive doesn't have sections. Instead it has a
32 chain of BFDs that are considered its contents. These BFDs can
33 be manipulated like any other. The BFDs contained in an
34 archive opened for reading will all be opened for reading. You
35 may put either input or output BFDs into an archive opened for
36 output; they will be handled correctly when the archive is closed.
38 Use <<bfd_openr_next_archived_file>> to step through
39 the contents of an archive opened for input. You don't
40 have to read the entire archive if you don't want
41 to! Read it until you find what you want.
43 A BFD returned by <<bfd_openr_next_archived_file>> can be
44 closed manually with <<bfd_close>>. If you do not close it,
45 then a second iteration through the members of an archive may
46 return the same BFD. If you close the archive BFD, then all
47 the member BFDs will automatically be closed as well.
49 Archive contents of output BFDs are chained through the
50 <<archive_next>> pointer in a BFD. The first one is findable
51 through the <<archive_head>> slot of the archive. Set it with
52 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only
53 one open output archive at a time.
55 As expected, the BFD archive code is more general than the
56 archive code of any given environment. BFD archives may
57 contain files of different formats (e.g., a.out and coff) and
58 even different architectures. You may even place archives
59 recursively into archives!
61 This can cause unexpected confusion, since some archive
62 formats are more expressive than others. For instance, Intel
63 COFF archives can preserve long filenames; SunOS a.out archives
64 cannot. If you move a file from the first to the second
65 format and back again, the filename may be truncated.
66 Likewise, different a.out environments have different
67 conventions as to how they truncate filenames, whether they
68 preserve directory names in filenames, etc. When
69 interoperating with native tools, be sure your files are
72 Beware: most of these formats do not react well to the
73 presence of spaces in filenames. We do the best we can, but
74 can't always handle this case due to restrictions in the format of
75 archives. Many Unix utilities are braindead in regards to
76 spaces and such in filenames anyway, so this shouldn't be much
79 Archives are supported in BFD in <<archive.c>>.
86 o - all archive elements start on an even boundary, newline padded;
87 o - all arch headers are char *;
88 o - all arch headers are the same size (across architectures).
91 /* Some formats provide a way to cram a long filename into the short
92 (16 chars) space provided by a BSD archive. The trick is: make a
93 special "file" in the front of the archive, sort of like the SYMDEF
94 entry. If the filename is too long to fit, put it in the extended
95 name table, and use its index as the filename. To prevent
96 confusion prepend the index with a space. This means you can't
97 have filenames that start with a space, but then again, many Unix
98 utilities can't handle that anyway.
100 This scheme unfortunately requires that you stand on your head in
101 order to write an archive since you need to put a magic file at the
102 front, and need to touch every entry to do so. C'est la vie.
104 We support two variants of this idea:
105 The SVR4 format (extended name table is named "//"),
106 and an extended pseudo-BSD variant (extended name table is named
107 "ARFILENAMES/"). The origin of the latter format is uncertain.
109 BSD 4.4 uses a third scheme: It writes a long filename
110 directly after the header. This allows 'ar q' to work.
113 /* Summary of archive member names:
115 Symbol table (must be first):
116 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
117 "/ " - Symbol table, system 5 style.
119 Long name table (must be before regular file members):
120 "// " - Long name table, System 5 R4 style.
121 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
123 Regular file members with short names:
124 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
125 "filename.o " - Regular file, Berkeley style (no embedded spaces).
127 Regular files with long names (or embedded spaces, for BSD variants):
128 "/18 " - SVR4 style, name at offset 18 in name table.
129 "#1/23 " - Long name (or embedded spaces) 23 characters long,
130 BSD 4.4 style, full name follows header.
131 " 18 " - Long name 18 characters long, extended pseudo-BSD.
136 #include "libiberty.h"
139 #include "aout/ranlib.h"
140 #include "safe-ctype.h"
142 #include "filenames.h"
149 /* We keep a cache of archive filepointers to archive elements to
150 speed up searching the archive by filepos. We only add an entry to
151 the cache when we actually read one. We also don't sort the cache;
152 it's generally short enough to search linearly.
153 Note that the pointers here point to the front of the ar_hdr, not
154 to the front of the contents! */
161 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
162 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
164 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
165 #define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata (bfd)->arch_header)
167 /* True iff NAME designated a BSD 4.4 extended name. */
169 #define is_bsd44_extended_name(NAME) \
170 (NAME[0] == '#' && NAME[1] == '1' && NAME[2] == '/' && ISDIGIT (NAME[3]))
173 _bfd_ar_spacepad (char *p
, size_t n
, const char *fmt
, long val
)
178 snprintf (buf
, sizeof (buf
), fmt
, val
);
182 memcpy (p
, buf
, len
);
183 memset (p
+ len
, ' ', n
- len
);
190 _bfd_ar_sizepad (char *p
, size_t n
, bfd_size_type size
)
195 snprintf (buf
, sizeof (buf
), "%-10" BFD_VMA_FMT
"u", size
);
199 bfd_set_error (bfd_error_file_too_big
);
204 memcpy (p
, buf
, len
);
205 memset (p
+ len
, ' ', n
- len
);
213 _bfd_generic_mkarchive (bfd
*abfd
)
215 bfd_size_type amt
= sizeof (struct artdata
);
217 abfd
->tdata
.aout_ar_data
= (struct artdata
*) bfd_zalloc (abfd
, amt
);
218 if (bfd_ardata (abfd
) == NULL
)
221 /* Already cleared by bfd_zalloc above.
222 bfd_ardata (abfd)->cache = NULL;
223 bfd_ardata (abfd)->archive_head = NULL;
224 bfd_ardata (abfd)->symdefs = NULL;
225 bfd_ardata (abfd)->extended_names = NULL;
226 bfd_ardata (abfd)->extended_names_size = 0;
227 bfd_ardata (abfd)->tdata = NULL; */
237 symindex bfd_get_next_mapent
238 (bfd *abfd, symindex previous, carsym **sym);
241 Step through archive @var{abfd}'s symbol table (if it
242 has one). Successively update @var{sym} with the next symbol's
243 information, returning that symbol's (internal) index into the
246 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
247 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
250 A <<carsym>> is a canonical archive symbol. The only
251 user-visible element is its name, a null-terminated string.
255 bfd_get_next_mapent (bfd
*abfd
, symindex prev
, carsym
**entry
)
257 if (!bfd_has_map (abfd
))
259 bfd_set_error (bfd_error_invalid_operation
);
260 return BFD_NO_MORE_SYMBOLS
;
263 if (prev
== BFD_NO_MORE_SYMBOLS
)
267 if (prev
>= bfd_ardata (abfd
)->symdef_count
)
268 return BFD_NO_MORE_SYMBOLS
;
270 *entry
= (bfd_ardata (abfd
)->symdefs
+ prev
);
274 /* To be called by backends only. */
277 _bfd_create_empty_archive_element_shell (bfd
*obfd
)
279 return _bfd_new_bfd_contained_in (obfd
);
287 bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
290 Set the head of the chain of
291 BFDs contained in the archive @var{output} to @var{new_head}.
295 bfd_set_archive_head (bfd
*output_archive
, bfd
*new_head
)
297 output_archive
->archive_head
= new_head
;
302 _bfd_look_for_bfd_in_cache (bfd
*arch_bfd
, file_ptr filepos
)
304 htab_t hash_table
= bfd_ardata (arch_bfd
)->cache
;
311 struct ar_cache
*entry
= (struct ar_cache
*) htab_find (hash_table
, &m
);
315 /* Unfortunately this flag is set after checking that we have
316 an archive, and checking for an archive means one element has
317 sneaked into the cache. */
318 entry
->arbfd
->no_export
= arch_bfd
->no_export
;
326 hash_file_ptr (const void * p
)
328 return (hashval_t
) (((struct ar_cache
*) p
)->ptr
);
331 /* Returns non-zero if P1 and P2 are equal. */
334 eq_file_ptr (const void * p1
, const void * p2
)
336 struct ar_cache
*arc1
= (struct ar_cache
*) p1
;
337 struct ar_cache
*arc2
= (struct ar_cache
*) p2
;
338 return arc1
->ptr
== arc2
->ptr
;
341 /* The calloc function doesn't always take size_t (e.g. on VMS)
342 so wrap it to avoid a compile time warning. */
345 _bfd_calloc_wrapper (size_t a
, size_t b
)
347 return calloc (a
, b
);
350 /* Kind of stupid to call cons for each one, but we don't do too many. */
353 _bfd_add_bfd_to_archive_cache (bfd
*arch_bfd
, file_ptr filepos
, bfd
*new_elt
)
355 struct ar_cache
*cache
;
356 htab_t hash_table
= bfd_ardata (arch_bfd
)->cache
;
358 /* If the hash table hasn't been created, create it. */
359 if (hash_table
== NULL
)
361 hash_table
= htab_create_alloc (16, hash_file_ptr
, eq_file_ptr
,
362 NULL
, _bfd_calloc_wrapper
, free
);
363 if (hash_table
== NULL
)
365 bfd_ardata (arch_bfd
)->cache
= hash_table
;
368 /* Insert new_elt into the hash table by filepos. */
369 cache
= (struct ar_cache
*) bfd_zalloc (arch_bfd
, sizeof (struct ar_cache
));
370 cache
->ptr
= filepos
;
371 cache
->arbfd
= new_elt
;
372 *htab_find_slot (hash_table
, (const void *) cache
, INSERT
) = cache
;
374 /* Provide a means of accessing this from child. */
375 arch_eltdata (new_elt
)->parent_cache
= hash_table
;
376 arch_eltdata (new_elt
)->key
= filepos
;
382 open_nested_file (const char *filename
, bfd
*archive
)
388 if (!archive
->target_defaulted
)
389 target
= archive
->xvec
->name
;
390 n_bfd
= bfd_openr (filename
, target
);
393 n_bfd
->lto_output
= archive
->lto_output
;
394 n_bfd
->no_export
= archive
->no_export
;
395 n_bfd
->my_archive
= archive
;
401 find_nested_archive (const char *filename
, bfd
*arch_bfd
)
405 /* PR 15140: Don't allow a nested archive pointing to itself. */
406 if (filename_cmp (filename
, arch_bfd
->filename
) == 0)
408 bfd_set_error (bfd_error_malformed_archive
);
412 for (abfd
= arch_bfd
->nested_archives
;
414 abfd
= abfd
->archive_next
)
416 if (filename_cmp (filename
, abfd
->filename
) == 0)
419 abfd
= open_nested_file (filename
, arch_bfd
);
422 abfd
->archive_next
= arch_bfd
->nested_archives
;
423 arch_bfd
->nested_archives
= abfd
;
428 /* The name begins with space. Hence the rest of the name is an index into
432 get_extended_arelt_filename (bfd
*arch
, const char *name
, file_ptr
*originp
)
434 unsigned long table_index
= 0;
437 /* Should extract string so that I can guarantee not to overflow into
438 the next region, but I'm too lazy. */
440 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
441 table_index
= strtol (name
+ 1, (char **) &endp
, 10);
442 if (errno
!= 0 || table_index
>= bfd_ardata (arch
)->extended_names_size
)
444 bfd_set_error (bfd_error_malformed_archive
);
447 /* In a thin archive, a member of an archive-within-an-archive
448 will have the offset in the inner archive encoded here. */
449 if (bfd_is_thin_archive (arch
) && endp
!= NULL
&& *endp
== ':')
451 file_ptr origin
= strtol (endp
+ 1, NULL
, 10);
455 bfd_set_error (bfd_error_malformed_archive
);
463 return bfd_ardata (arch
)->extended_names
+ table_index
;
466 /* This functions reads an arch header and returns an areltdata pointer, or
469 Presumes the file pointer is already in the right place (ie pointing
470 to the ar_hdr in the file). Moves the file pointer; on success it
471 should be pointing to the front of the file contents; on failure it
472 could have been moved arbitrarily. */
475 _bfd_generic_read_ar_hdr (bfd
*abfd
)
477 return _bfd_generic_read_ar_hdr_mag (abfd
, NULL
);
480 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
481 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
484 _bfd_generic_read_ar_hdr_mag (bfd
*abfd
, const char *mag
)
487 char *hdrp
= (char *) &hdr
;
488 bfd_size_type parsed_size
;
489 struct areltdata
*ared
;
490 char *filename
= NULL
;
491 bfd_size_type namelen
= 0;
492 bfd_size_type allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
495 unsigned int extra_size
= 0;
499 if (bfd_bread (hdrp
, sizeof (struct ar_hdr
), abfd
) != sizeof (struct ar_hdr
))
501 if (bfd_get_error () != bfd_error_system_call
)
502 bfd_set_error (bfd_error_no_more_archived_files
);
505 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
507 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
509 bfd_set_error (bfd_error_malformed_archive
);
514 fmag_save
= hdr
.ar_fmag
[0];
516 scan
= sscanf (hdr
.ar_size
, "%" BFD_VMA_FMT
"u", &parsed_size
);
517 hdr
.ar_fmag
[0] = fmag_save
;
520 bfd_set_error (bfd_error_malformed_archive
);
524 /* Extract the filename from the archive - there are two ways to
525 specify an extended name table, either the first char of the
526 name is a space, or it's a slash. */
527 if ((hdr
.ar_name
[0] == '/'
528 || (hdr
.ar_name
[0] == ' '
529 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
530 && bfd_ardata (abfd
)->extended_names
!= NULL
)
532 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
, &origin
);
533 if (filename
== NULL
)
536 /* BSD4.4-style long filename. */
537 else if (is_bsd44_extended_name (hdr
.ar_name
))
539 /* BSD-4.4 extended name */
540 namelen
= atoi (&hdr
.ar_name
[3]);
541 allocsize
+= namelen
+ 1;
542 parsed_size
-= namelen
;
543 extra_size
= namelen
;
545 allocptr
= (char *) bfd_zmalloc (allocsize
);
546 if (allocptr
== NULL
)
549 + sizeof (struct areltdata
)
550 + sizeof (struct ar_hdr
));
551 if (bfd_bread (filename
, namelen
, abfd
) != namelen
)
554 if (bfd_get_error () != bfd_error_system_call
)
555 bfd_set_error (bfd_error_no_more_archived_files
);
558 filename
[namelen
] = '\0';
562 /* We judge the end of the name by looking for '/' or ' '.
563 Note: The SYSV format (terminated by '/') allows embedded
564 spaces, so only look for ' ' if we don't find '/'. */
567 e
= (char *) memchr (hdr
.ar_name
, '\0', ar_maxnamelen (abfd
));
570 e
= (char *) memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
));
572 e
= (char *) memchr (hdr
.ar_name
, ' ', ar_maxnamelen (abfd
));
576 namelen
= e
- hdr
.ar_name
;
579 /* If we didn't find a termination character, then the name
580 must be the entire field. */
581 namelen
= ar_maxnamelen (abfd
);
584 allocsize
+= namelen
+ 1;
589 allocptr
= (char *) bfd_zmalloc (allocsize
);
590 if (allocptr
== NULL
)
594 ared
= (struct areltdata
*) allocptr
;
596 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
597 memcpy (ared
->arch_header
, &hdr
, sizeof (struct ar_hdr
));
598 ared
->parsed_size
= parsed_size
;
599 ared
->extra_size
= extra_size
;
600 ared
->origin
= origin
;
602 if (filename
!= NULL
)
603 ared
->filename
= filename
;
606 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
607 sizeof (struct ar_hdr
));
609 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
610 ared
->filename
[namelen
] = '\0';
616 /* Append the relative pathname for a member of the thin archive
617 to the pathname of the directory containing the archive. */
620 _bfd_append_relative_path (bfd
*arch
, char *elt_name
)
622 const char *arch_name
= arch
->filename
;
623 const char *base_name
= lbasename (arch_name
);
627 if (base_name
== arch_name
)
630 prefix_len
= base_name
- arch_name
;
631 filename
= (char *) bfd_alloc (arch
, prefix_len
+ strlen (elt_name
) + 1);
632 if (filename
== NULL
)
635 strncpy (filename
, arch_name
, prefix_len
);
636 strcpy (filename
+ prefix_len
, elt_name
);
640 /* This is an internal function; it's mainly used when indexing
641 through the archive symbol table, but also used to get the next
642 element, since it handles the bookkeeping so nicely for us. */
645 _bfd_get_elt_at_filepos (bfd
*archive
, file_ptr filepos
)
647 struct areltdata
*new_areldata
;
651 n_bfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
655 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
658 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
661 filename
= new_areldata
->filename
;
663 if (bfd_is_thin_archive (archive
))
665 /* This is a proxy entry for an external file. */
666 if (! IS_ABSOLUTE_PATH (filename
))
668 filename
= _bfd_append_relative_path (archive
, filename
);
669 if (filename
== NULL
)
676 if (new_areldata
->origin
> 0)
678 /* This proxy entry refers to an element of a nested archive.
679 Locate the member of that archive and return a bfd for it. */
680 bfd
*ext_arch
= find_nested_archive (filename
, archive
);
683 || ! bfd_check_format (ext_arch
, bfd_archive
))
688 n_bfd
= _bfd_get_elt_at_filepos (ext_arch
, new_areldata
->origin
);
694 n_bfd
->proxy_origin
= bfd_tell (archive
);
696 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI
698 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
700 | BFD_COMPRESS_GABI
);
705 /* It's not an element of a nested archive;
706 open the external file as a bfd. */
707 n_bfd
= open_nested_file (filename
, archive
);
709 bfd_set_error (bfd_error_malformed_archive
);
713 n_bfd
= _bfd_create_empty_archive_element_shell (archive
);
722 n_bfd
->proxy_origin
= bfd_tell (archive
);
724 if (bfd_is_thin_archive (archive
))
730 n_bfd
->origin
= n_bfd
->proxy_origin
;
731 n_bfd
->filename
= bfd_strdup (filename
);
732 if (n_bfd
->filename
== NULL
)
736 n_bfd
->arelt_data
= new_areldata
;
738 /* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
739 n_bfd
->flags
|= archive
->flags
& (BFD_COMPRESS
741 | BFD_COMPRESS_GABI
);
743 /* Copy is_linker_input. */
744 n_bfd
->is_linker_input
= archive
->is_linker_input
;
746 if (archive
->no_element_cache
747 || _bfd_add_bfd_to_archive_cache (archive
, filepos
, n_bfd
))
752 n_bfd
->arelt_data
= NULL
;
757 /* Return the BFD which is referenced by the symbol in ABFD indexed by
758 SYM_INDEX. SYM_INDEX should have been returned by bfd_get_next_mapent. */
761 _bfd_generic_get_elt_at_index (bfd
*abfd
, symindex sym_index
)
765 entry
= bfd_ardata (abfd
)->symdefs
+ sym_index
;
766 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
770 _bfd_noarchive_get_elt_at_index (bfd
*abfd
,
771 symindex sym_index ATTRIBUTE_UNUSED
)
773 return (bfd
*) _bfd_ptr_bfd_null_error (abfd
);
778 bfd_openr_next_archived_file
781 bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
784 Provided a BFD, @var{archive}, containing an archive and NULL, open
785 an input BFD on the first contained element and returns that.
786 Subsequent calls should pass the archive and the previous return
787 value to return a created BFD to the next contained element. NULL
788 is returned when there are no more.
789 Note - if you want to process the bfd returned by this call be
790 sure to call bfd_check_format() on it first.
794 bfd_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
796 if ((bfd_get_format (archive
) != bfd_archive
)
797 || (archive
->direction
== write_direction
))
799 bfd_set_error (bfd_error_invalid_operation
);
803 return BFD_SEND (archive
,
804 openr_next_archived_file
, (archive
, last_file
));
808 bfd_generic_openr_next_archived_file (bfd
*archive
, bfd
*last_file
)
813 filestart
= bfd_ardata (archive
)->first_file_filepos
;
816 filestart
= last_file
->proxy_origin
;
817 if (! bfd_is_thin_archive (archive
))
819 bfd_size_type size
= arelt_size (last_file
);
822 /* Pad to an even boundary...
823 Note that last_file->origin can be odd in the case of
824 BSD-4.4-style element with a long odd size. */
825 filestart
+= filestart
% 2;
826 if (filestart
< last_file
->proxy_origin
)
828 /* Prevent looping. See PR19256. */
829 bfd_set_error (bfd_error_malformed_archive
);
835 return _bfd_get_elt_at_filepos (archive
, filestart
);
839 _bfd_noarchive_openr_next_archived_file (bfd
*archive
,
840 bfd
*last_file ATTRIBUTE_UNUSED
)
842 return (bfd
*) _bfd_ptr_bfd_null_error (archive
);
846 bfd_generic_archive_p (bfd
*abfd
)
848 struct artdata
*tdata_hold
;
849 char armag
[SARMAG
+ 1];
852 if (bfd_bread (armag
, SARMAG
, abfd
) != SARMAG
)
854 if (bfd_get_error () != bfd_error_system_call
)
855 bfd_set_error (bfd_error_wrong_format
);
859 bfd_set_thin_archive (abfd
, strncmp (armag
, ARMAGT
, SARMAG
) == 0);
861 if (strncmp (armag
, ARMAG
, SARMAG
) != 0
862 && ! bfd_is_thin_archive (abfd
))
864 bfd_set_error (bfd_error_wrong_format
);
868 tdata_hold
= bfd_ardata (abfd
);
870 amt
= sizeof (struct artdata
);
871 bfd_ardata (abfd
) = (struct artdata
*) bfd_zalloc (abfd
, amt
);
872 if (bfd_ardata (abfd
) == NULL
)
874 bfd_ardata (abfd
) = tdata_hold
;
878 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
879 /* Cleared by bfd_zalloc above.
880 bfd_ardata (abfd)->cache = NULL;
881 bfd_ardata (abfd)->archive_head = NULL;
882 bfd_ardata (abfd)->symdefs = NULL;
883 bfd_ardata (abfd)->extended_names = NULL;
884 bfd_ardata (abfd)->extended_names_size = 0;
885 bfd_ardata (abfd)->tdata = NULL; */
887 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
))
888 || !BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
890 if (bfd_get_error () != bfd_error_system_call
)
891 bfd_set_error (bfd_error_wrong_format
);
892 bfd_release (abfd
, bfd_ardata (abfd
));
893 bfd_ardata (abfd
) = tdata_hold
;
897 if (abfd
->target_defaulted
&& bfd_has_map (abfd
))
902 /* This archive has a map, so we may presume that the contents
903 are object files. Make sure that if the first file in the
904 archive can be recognized as an object file, it is for this
905 target. If not, assume that this is the wrong format. If
906 the first file is not an object file, somebody is doing
907 something weird, and we permit it so that ar -t will work.
909 This is done because any normal format will recognize any
910 normal archive, regardless of the format of the object files.
911 We do accept an empty archive. */
913 save
= abfd
->no_element_cache
;
914 abfd
->no_element_cache
= 1;
915 first
= bfd_openr_next_archived_file (abfd
, NULL
);
916 abfd
->no_element_cache
= save
;
919 first
->target_defaulted
= FALSE
;
920 if (bfd_check_format (first
, bfd_object
)
921 && first
->xvec
!= abfd
->xvec
)
922 bfd_set_error (bfd_error_wrong_object_format
);
930 /* Some constants for a 32 bit BSD archive structure. We do not
931 support 64 bit archives presently; so far as I know, none actually
932 exist. Supporting them would require changing these constants, and
933 changing some H_GET_32 to H_GET_64. */
935 /* The size of an external symdef structure. */
936 #define BSD_SYMDEF_SIZE 8
938 /* The offset from the start of a symdef structure to the file offset. */
939 #define BSD_SYMDEF_OFFSET_SIZE 4
941 /* The size of the symdef count. */
942 #define BSD_SYMDEF_COUNT_SIZE 4
944 /* The size of the string count. */
945 #define BSD_STRING_COUNT_SIZE 4
947 /* Read a BSD-style archive symbol table. Returns FALSE on error,
951 do_slurp_bsd_armap (bfd
*abfd
)
953 struct areltdata
*mapdata
;
954 unsigned int counter
;
955 bfd_byte
*raw_armap
, *rbase
;
956 struct artdata
*ardata
= bfd_ardata (abfd
);
958 bfd_size_type parsed_size
, amt
;
961 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
964 parsed_size
= mapdata
->parsed_size
;
966 /* PR 17512: file: 883ff754. */
967 /* PR 17512: file: 0458885f. */
971 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
972 if (raw_armap
== NULL
)
975 if (bfd_bread (raw_armap
, parsed_size
, abfd
) != parsed_size
)
977 if (bfd_get_error () != bfd_error_system_call
)
978 bfd_set_error (bfd_error_malformed_archive
);
980 bfd_release (abfd
, raw_armap
);
984 ardata
->symdef_count
= H_GET_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
985 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
986 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
988 /* Probably we're using the wrong byte ordering. */
989 bfd_set_error (bfd_error_wrong_format
);
993 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
994 stringbase
= ((char *) rbase
995 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
996 + BSD_STRING_COUNT_SIZE
);
997 amt
= ardata
->symdef_count
* sizeof (carsym
);
998 ardata
->symdefs
= (struct carsym
*) bfd_alloc (abfd
, amt
);
999 if (!ardata
->symdefs
)
1002 for (counter
= 0, set
= ardata
->symdefs
;
1003 counter
< ardata
->symdef_count
;
1004 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1006 set
->name
= H_GET_32 (abfd
, rbase
) + stringbase
;
1007 set
->file_offset
= H_GET_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1010 ardata
->first_file_filepos
= bfd_tell (abfd
);
1011 /* Pad to an even boundary if you have to. */
1012 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1013 /* FIXME, we should provide some way to free raw_ardata when
1014 we are done using the strings from it. For now, it seems
1015 to be allocated on an objalloc anyway... */
1016 abfd
->has_armap
= TRUE
;
1020 /* Read a COFF archive symbol table. Returns FALSE on error, TRUE
1024 do_slurp_coff_armap (bfd
*abfd
)
1026 struct areltdata
*mapdata
;
1027 int *raw_armap
, *rawptr
;
1028 struct artdata
*ardata
= bfd_ardata (abfd
);
1031 bfd_size_type stringsize
;
1032 bfd_size_type parsed_size
;
1034 bfd_size_type nsymz
; /* Number of symbols in armap. */
1035 bfd_vma (*swap
) (const void *);
1036 char int_buf
[sizeof (long)];
1037 bfd_size_type carsym_size
, ptrsize
;
1040 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1041 if (mapdata
== NULL
)
1043 parsed_size
= mapdata
->parsed_size
;
1046 if (bfd_bread (int_buf
, 4, abfd
) != 4)
1048 if (bfd_get_error () != bfd_error_system_call
)
1049 bfd_set_error (bfd_error_malformed_archive
);
1052 /* It seems that all numeric information in a coff archive is always
1053 in big endian format, nomatter the host or target. */
1055 nsymz
= bfd_getb32 (int_buf
);
1056 stringsize
= parsed_size
- (4 * nsymz
) - 4;
1058 /* The coff armap must be read sequentially. So we construct a
1059 bsd-style one in core all at once, for simplicity. */
1061 if (nsymz
> ~ (bfd_size_type
) 0 / sizeof (carsym
))
1064 carsym_size
= (nsymz
* sizeof (carsym
));
1065 ptrsize
= (4 * nsymz
);
1067 if (carsym_size
+ stringsize
+ 1 <= carsym_size
)
1070 ardata
->symdefs
= (struct carsym
*) bfd_zalloc (abfd
,
1071 carsym_size
+ stringsize
+ 1);
1072 if (ardata
->symdefs
== NULL
)
1074 carsyms
= ardata
->symdefs
;
1075 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
1077 /* Allocate and read in the raw offsets. */
1078 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
1079 if (raw_armap
== NULL
)
1080 goto release_symdefs
;
1081 if (bfd_bread (raw_armap
, ptrsize
, abfd
) != ptrsize
1082 || (bfd_bread (stringbase
, stringsize
, abfd
) != stringsize
))
1084 if (bfd_get_error () != bfd_error_system_call
)
1085 bfd_set_error (bfd_error_malformed_archive
);
1086 goto release_raw_armap
;
1089 /* OK, build the carsyms. */
1090 stringend
= stringbase
+ stringsize
;
1092 for (i
= 0; i
< nsymz
; i
++)
1094 rawptr
= raw_armap
+ i
;
1095 carsyms
->file_offset
= swap ((bfd_byte
*) rawptr
);
1096 carsyms
->name
= stringbase
;
1097 stringbase
+= strlen (stringbase
);
1098 if (stringbase
!= stringend
)
1103 ardata
->symdef_count
= nsymz
;
1104 ardata
->first_file_filepos
= bfd_tell (abfd
);
1105 /* Pad to an even boundary if you have to. */
1106 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1108 abfd
->has_armap
= TRUE
;
1109 bfd_release (abfd
, raw_armap
);
1111 /* Check for a second archive header (as used by PE). */
1113 struct areltdata
*tmp
;
1115 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
1116 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1119 if (tmp
->arch_header
[0] == '/'
1120 && tmp
->arch_header
[1] == ' ')
1122 ardata
->first_file_filepos
+=
1123 (tmp
->parsed_size
+ sizeof (struct ar_hdr
) + 1) & ~(unsigned) 1;
1132 bfd_release (abfd
, raw_armap
);
1134 bfd_release (abfd
, (ardata
)->symdefs
);
1138 /* This routine can handle either coff-style or bsd-style armaps
1139 (archive symbol table). Returns FALSE on error, TRUE otherwise */
1142 bfd_slurp_armap (bfd
*abfd
)
1145 int i
= bfd_bread (nextname
, 16, abfd
);
1152 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1155 if (CONST_STRNEQ (nextname
, "__.SYMDEF ")
1156 || CONST_STRNEQ (nextname
, "__.SYMDEF/ ")) /* Old Linux archives. */
1157 return do_slurp_bsd_armap (abfd
);
1158 else if (CONST_STRNEQ (nextname
, "/ "))
1159 return do_slurp_coff_armap (abfd
);
1160 else if (CONST_STRNEQ (nextname
, "/SYM64/ "))
1162 /* 64bit (Irix 6) archive. */
1164 return _bfd_archive_64_bit_slurp_armap (abfd
);
1166 bfd_set_error (bfd_error_wrong_format
);
1170 else if (CONST_STRNEQ (nextname
, "#1/20 "))
1172 /* Mach-O has a special name for armap when the map is sorted by name.
1173 However because this name has a space it is slightly more difficult
1178 if (bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
1180 /* Read the extended name. We know its length. */
1181 if (bfd_bread (extname
, 20, abfd
) != 20)
1183 if (bfd_seek (abfd
, -(file_ptr
) (sizeof (hdr
) + 20), SEEK_CUR
) != 0)
1186 if (CONST_STRNEQ (extname
, "__.SYMDEF SORTED")
1187 || CONST_STRNEQ (extname
, "__.SYMDEF"))
1188 return do_slurp_bsd_armap (abfd
);
1191 abfd
->has_armap
= FALSE
;
1195 /** Extended name table.
1197 Normally archives support only 14-character filenames.
1199 Intel has extended the format: longer names are stored in a special
1200 element (the first in the archive, or second if there is an armap);
1201 the name in the ar_hdr is replaced by <space><index into filename
1202 element>. Index is the P.R. of an int (decimal). Data General have
1203 extended the format by using the prefix // for the special element. */
1205 /* Returns FALSE on error, TRUE otherwise. */
1208 _bfd_slurp_extended_name_table (bfd
*abfd
)
1211 struct areltdata
*namedata
;
1214 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1215 we probably don't want to return TRUE. */
1216 if (bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
) != 0)
1219 if (bfd_bread (nextname
, 16, abfd
) == 16)
1221 if (bfd_seek (abfd
, (file_ptr
) -16, SEEK_CUR
) != 0)
1224 if (! CONST_STRNEQ (nextname
, "ARFILENAMES/ ")
1225 && ! CONST_STRNEQ (nextname
, "// "))
1227 bfd_ardata (abfd
)->extended_names
= NULL
;
1228 bfd_ardata (abfd
)->extended_names_size
= 0;
1232 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1233 if (namedata
== NULL
)
1236 amt
= namedata
->parsed_size
;
1240 bfd_ardata (abfd
)->extended_names_size
= amt
;
1241 bfd_ardata (abfd
)->extended_names
= (char *) bfd_zalloc (abfd
, amt
+ 1);
1242 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1246 bfd_ardata (abfd
)->extended_names
= NULL
;
1247 bfd_ardata (abfd
)->extended_names_size
= 0;
1251 if (bfd_bread (bfd_ardata (abfd
)->extended_names
, amt
, abfd
) != amt
)
1253 if (bfd_get_error () != bfd_error_system_call
)
1254 bfd_set_error (bfd_error_malformed_archive
);
1255 bfd_release (abfd
, (bfd_ardata (abfd
)->extended_names
));
1256 bfd_ardata (abfd
)->extended_names
= NULL
;
1260 /* Since the archive is supposed to be printable if it contains
1261 text, the entries in the list are newline-padded, not null
1262 padded. In SVR4-style archives, the names also have a
1263 trailing '/'. DOS/NT created archive often have \ in them
1264 We'll fix all problems here. */
1266 char *ext_names
= bfd_ardata (abfd
)->extended_names
;
1267 char *temp
= ext_names
;
1268 char *limit
= temp
+ namedata
->parsed_size
;
1270 for (; temp
< limit
; ++temp
)
1272 if (*temp
== ARFMAG
[1])
1273 temp
[temp
> ext_names
&& temp
[-1] == '/' ? -1 : 0] = '\0';
1280 /* Pad to an even boundary if you have to. */
1281 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1282 bfd_ardata (abfd
)->first_file_filepos
+=
1283 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1292 /* Return a copy of the stuff in the filename between any :]> and a
1296 normalize (bfd
*abfd
, const char *file
)
1302 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1305 first
= file
+ strlen (file
) - 1;
1308 while (first
!= file
)
1312 if (*first
== ':' || *first
== ']' || *first
== '>')
1320 copy
= bfd_alloc (abfd
, last
- first
+ 1);
1324 memcpy (copy
, first
, last
- first
);
1325 copy
[last
- first
] = 0;
1332 normalize (bfd
*abfd
, const char *file
)
1334 if (abfd
->flags
& BFD_ARCHIVE_FULL_PATH
)
1336 return lbasename (file
);
1340 /* Adjust a relative path name based on the reference path.
1343 Relative path Reference path Result
1344 ------------- -------------- ------
1346 foo/bar.o lib.a foo/bar.o
1347 bar.o foo/lib.a ../bar.o
1348 foo/bar.o baz/lib.a ../foo/bar.o
1349 bar.o ../lib.a <parent of current dir>/bar.o
1350 ; ../bar.o ../lib.a bar.o
1351 ; ../bar.o lib.a ../bar.o
1352 foo/bar.o ../lib.a <parent of current dir>/foo/bar.o
1353 bar.o ../../lib.a <grandparent>/<parent>/bar.o
1354 bar.o foo/baz/lib.a ../../bar.o
1356 Note - the semicolons above are there to prevent the BFD chew
1357 utility from interpreting those lines as prototypes to put into
1358 the autogenerated bfd.h header...
1360 Note - the string is returned in a static buffer. */
1363 adjust_relative_path (const char * path
, const char * ref_path
)
1365 static char *pathbuf
= NULL
;
1366 static unsigned int pathbuf_len
= 0;
1372 unsigned int dir_up
= 0;
1373 unsigned int dir_down
= 0;
1375 char * pwd
= getpwd ();
1378 /* Remove symlinks, '.' and '..' from the paths, if possible. */
1379 lpath
= lrealpath (path
);
1380 pathp
= lpath
== NULL
? path
: lpath
;
1382 rpath
= lrealpath (ref_path
);
1383 refp
= rpath
== NULL
? ref_path
: rpath
;
1385 /* Remove common leading path elements. */
1388 const char *e1
= pathp
;
1389 const char *e2
= refp
;
1391 while (*e1
&& ! IS_DIR_SEPARATOR (*e1
))
1393 while (*e2
&& ! IS_DIR_SEPARATOR (*e2
))
1395 if (*e1
== '\0' || *e2
== '\0' || e1
- pathp
!= e2
- refp
1396 || filename_ncmp (pathp
, refp
, e1
- pathp
) != 0)
1402 len
= strlen (pathp
) + 1;
1403 /* For each leading path element in the reference path,
1404 insert "../" into the path. */
1405 for (; *refp
; ++refp
)
1406 if (IS_DIR_SEPARATOR (*refp
))
1408 /* PR 12710: If the path element is "../" then instead of
1409 inserting "../" we need to insert the name of the directory
1410 at the current level. */
1411 if (refp
> ref_path
+ 1
1419 /* If the lrealpath calls above succeeded then we should never
1420 see dir_up and dir_down both being non-zero. */
1426 down
= pwd
+ strlen (pwd
) - 1;
1428 while (dir_down
&& down
> pwd
)
1430 if (IS_DIR_SEPARATOR (*down
))
1433 BFD_ASSERT (dir_down
== 0);
1434 len
+= strlen (down
) + 1;
1439 if (len
> pathbuf_len
)
1441 if (pathbuf
!= NULL
)
1444 pathbuf
= (char *) bfd_malloc (len
);
1445 if (pathbuf
== NULL
)
1451 while (dir_up
-- > 0)
1453 /* FIXME: Support Windows style path separators as well. */
1454 strcpy (newp
, "../");
1459 sprintf (newp
, "%s/%s", down
, pathp
);
1461 strcpy (newp
, pathp
);
1469 /* Build a BFD style extended name table. */
1472 _bfd_archive_bsd_construct_extended_name_table (bfd
*abfd
,
1474 bfd_size_type
*tablen
,
1477 *name
= "ARFILENAMES/";
1478 return _bfd_construct_extended_name_table (abfd
, FALSE
, tabloc
, tablen
);
1481 /* Build an SVR4 style extended name table. */
1484 _bfd_archive_coff_construct_extended_name_table (bfd
*abfd
,
1486 bfd_size_type
*tablen
,
1490 return _bfd_construct_extended_name_table (abfd
, TRUE
, tabloc
, tablen
);
1494 _bfd_noarchive_construct_extended_name_table (bfd
*abfd ATTRIBUTE_UNUSED
,
1495 char **tabloc ATTRIBUTE_UNUSED
,
1496 bfd_size_type
*len ATTRIBUTE_UNUSED
,
1497 const char **name ATTRIBUTE_UNUSED
)
1502 /* Follows archive_head and produces an extended name table if
1503 necessary. Returns (in tabloc) a pointer to an extended name
1504 table, and in tablen the length of the table. If it makes an entry
1505 it clobbers the filename so that the element may be written without
1506 further massage. Returns TRUE if it ran successfully, FALSE if
1507 something went wrong. A successful return may still involve a
1508 zero-length tablen! */
1511 _bfd_construct_extended_name_table (bfd
*abfd
,
1512 bfd_boolean trailing_slash
,
1514 bfd_size_type
*tablen
)
1516 unsigned int maxname
= ar_maxnamelen (abfd
);
1517 bfd_size_type total_namelen
= 0;
1520 const char *last_filename
;
1524 last_filename
= NULL
;
1526 /* Figure out how long the table should be. */
1527 for (current
= abfd
->archive_head
;
1529 current
= current
->archive_next
)
1532 unsigned int thislen
;
1534 if (bfd_is_thin_archive (abfd
))
1536 const char *filename
= current
->filename
;
1538 /* If the element being added is a member of another archive
1539 (i.e., we are flattening), use the containing archive's name. */
1540 if (current
->my_archive
1541 && ! bfd_is_thin_archive (current
->my_archive
))
1542 filename
= current
->my_archive
->filename
;
1544 /* If the path is the same as the previous path seen,
1545 reuse it. This can happen when flattening a thin
1546 archive that contains other archives. */
1547 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1550 last_filename
= filename
;
1552 /* If the path is relative, adjust it relative to
1553 the containing archive. */
1554 if (! IS_ABSOLUTE_PATH (filename
)
1555 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1556 normal
= adjust_relative_path (filename
, abfd
->filename
);
1560 /* In a thin archive, always store the full pathname
1561 in the extended name table. */
1562 total_namelen
+= strlen (normal
) + 1;
1564 /* Leave room for trailing slash. */
1570 normal
= normalize (abfd
, current
->filename
);
1574 thislen
= strlen (normal
);
1576 if (thislen
> maxname
1577 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1580 if (thislen
> maxname
)
1582 /* Add one to leave room for \n. */
1583 total_namelen
+= thislen
+ 1;
1586 /* Leave room for trailing slash. */
1592 struct ar_hdr
*hdr
= arch_hdr (current
);
1593 if (filename_ncmp (normal
, hdr
->ar_name
, thislen
) != 0
1594 || (thislen
< sizeof hdr
->ar_name
1595 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1597 /* Must have been using extended format even though it
1598 didn't need to. Fix it to use normal format. */
1599 memcpy (hdr
->ar_name
, normal
, thislen
);
1600 if (thislen
< maxname
1601 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1602 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1607 if (total_namelen
== 0)
1610 *tabloc
= (char *) bfd_zalloc (abfd
, total_namelen
);
1611 if (*tabloc
== NULL
)
1614 *tablen
= total_namelen
;
1617 last_filename
= NULL
;
1620 for (current
= abfd
->archive_head
;
1622 current
= current
->archive_next
)
1625 unsigned int thislen
;
1627 const char *filename
= current
->filename
;
1629 if (bfd_is_thin_archive (abfd
))
1631 /* If the element being added is a member of another archive
1632 (i.e., we are flattening), use the containing archive's name. */
1633 if (current
->my_archive
1634 && ! bfd_is_thin_archive (current
->my_archive
))
1635 filename
= current
->my_archive
->filename
;
1636 /* If the path is the same as the previous path seen,
1637 reuse it. This can happen when flattening a thin
1638 archive that contains other archives.
1639 If the path is relative, adjust it relative to
1640 the containing archive. */
1641 if (last_filename
&& filename_cmp (last_filename
, filename
) == 0)
1642 normal
= last_filename
;
1643 else if (! IS_ABSOLUTE_PATH (filename
)
1644 && ! IS_ABSOLUTE_PATH (abfd
->filename
))
1645 normal
= adjust_relative_path (filename
, abfd
->filename
);
1651 normal
= normalize (abfd
, filename
);
1656 thislen
= strlen (normal
);
1657 if (thislen
> maxname
|| bfd_is_thin_archive (abfd
))
1659 /* Works for now; may need to be re-engineered if we
1660 encounter an oddball archive format and want to
1661 generalise this hack. */
1662 struct ar_hdr
*hdr
= arch_hdr (current
);
1663 if (normal
== last_filename
)
1664 stroff
= last_stroff
;
1667 strcpy (strptr
, normal
);
1668 if (! trailing_slash
)
1669 strptr
[thislen
] = ARFMAG
[1];
1672 strptr
[thislen
] = '/';
1673 strptr
[thislen
+ 1] = ARFMAG
[1];
1675 stroff
= strptr
- *tabloc
;
1676 last_stroff
= stroff
;
1678 hdr
->ar_name
[0] = ar_padchar (current
);
1679 if (bfd_is_thin_archive (abfd
) && current
->origin
> 0)
1681 int len
= snprintf (hdr
->ar_name
+ 1, maxname
- 1, "%-ld:",
1683 _bfd_ar_spacepad (hdr
->ar_name
+ 1 + len
, maxname
- 1 - len
,
1685 current
->origin
- sizeof (struct ar_hdr
));
1688 _bfd_ar_spacepad (hdr
->ar_name
+ 1, maxname
- 1, "%-ld", stroff
);
1689 if (normal
!= last_filename
)
1691 strptr
+= thislen
+ 1;
1694 last_filename
= filename
;
1702 /* Do not construct an extended name table but transforms name field into
1703 its extended form. */
1706 _bfd_archive_bsd44_construct_extended_name_table (bfd
*abfd
,
1708 bfd_size_type
*tablen
,
1711 unsigned int maxname
= ar_maxnamelen (abfd
);
1718 for (current
= abfd
->archive_head
;
1720 current
= current
->archive_next
)
1722 const char *normal
= normalize (abfd
, current
->filename
);
1729 for (len
= 0; normal
[len
]; len
++)
1730 if (normal
[len
] == ' ')
1733 if (len
> maxname
|| has_space
)
1735 struct ar_hdr
*hdr
= arch_hdr (current
);
1737 len
= (len
+ 3) & ~3;
1738 arch_eltdata (current
)->extra_size
= len
;
1739 _bfd_ar_spacepad (hdr
->ar_name
, maxname
, "#1/%lu", len
);
1746 /* Write an archive header. */
1749 _bfd_generic_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1751 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1753 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1758 /* Write an archive header using BSD4.4 convention. */
1761 _bfd_bsd44_write_ar_hdr (bfd
*archive
, bfd
*abfd
)
1763 struct ar_hdr
*hdr
= arch_hdr (abfd
);
1765 if (is_bsd44_extended_name (hdr
->ar_name
))
1767 /* This is a BSD 4.4 extended name. */
1768 const char *fullname
= normalize (abfd
, abfd
->filename
);
1769 unsigned int len
= strlen (fullname
);
1770 unsigned int padded_len
= (len
+ 3) & ~3;
1772 BFD_ASSERT (padded_len
== arch_eltdata (abfd
)->extra_size
);
1774 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
),
1775 arch_eltdata (abfd
)->parsed_size
+ padded_len
))
1778 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1781 if (bfd_bwrite (fullname
, len
, archive
) != len
)
1786 static const char pad
[3] = { 0, 0, 0 };
1788 len
= 4 - (len
& 3);
1789 if (bfd_bwrite (pad
, len
, archive
) != len
)
1795 if (bfd_bwrite (hdr
, sizeof (*hdr
), archive
) != sizeof (*hdr
))
1802 _bfd_noarchive_write_ar_hdr (bfd
*archive
, bfd
*abfd ATTRIBUTE_UNUSED
)
1804 return _bfd_bool_bfd_false_error (archive
);
1807 /* A couple of functions for creating ar_hdrs. */
1809 #ifdef HPUX_LARGE_AR_IDS
1810 /* Function to encode large UID/GID values according to HP. */
1813 hpux_uid_gid_encode (char str
[6], long int id
)
1817 str
[5] = '@' + (id
& 3);
1820 for (cnt
= 4; cnt
>= 0; --cnt
, id
>>= 6)
1821 str
[cnt
] = ' ' + (id
& 0x3f);
1823 #endif /* HPUX_LARGE_AR_IDS */
1833 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1834 make one. The filename must refer to a filename in the filesystem.
1835 The filename field of the ar_hdr will NOT be initialized. If member
1836 is set, and it's an in-memory bfd, we fake it. */
1838 static struct areltdata
*
1839 bfd_ar_hdr_from_filesystem (bfd
*abfd
, const char *filename
, bfd
*member
)
1842 struct areltdata
*ared
;
1846 if (member
&& (member
->flags
& BFD_IN_MEMORY
) != 0)
1848 /* Assume we just "made" the member, and fake it. */
1849 struct bfd_in_memory
*bim
= (struct bfd_in_memory
*) member
->iostream
;
1850 time (&status
.st_mtime
);
1851 status
.st_uid
= getuid ();
1852 status
.st_gid
= getgid ();
1853 status
.st_mode
= 0644;
1854 status
.st_size
= bim
->size
;
1856 else if (stat (filename
, &status
) != 0)
1858 bfd_set_error (bfd_error_system_call
);
1862 /* If the caller requested that the BFD generate deterministic output,
1863 fake values for modification time, UID, GID, and file mode. */
1864 if ((abfd
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
1866 status
.st_mtime
= 0;
1869 status
.st_mode
= 0644;
1872 amt
= sizeof (struct ar_hdr
) + sizeof (struct areltdata
);
1873 ared
= (struct areltdata
*) bfd_zmalloc (amt
);
1876 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1878 /* ar headers are space padded, not null padded! */
1879 memset (hdr
, ' ', sizeof (struct ar_hdr
));
1881 _bfd_ar_spacepad (hdr
->ar_date
, sizeof (hdr
->ar_date
), "%-12ld",
1883 #ifdef HPUX_LARGE_AR_IDS
1884 /* HP has a very "special" way to handle UID/GID's with numeric values
1886 if (status
.st_uid
> 99999)
1887 hpux_uid_gid_encode (hdr
->ar_uid
, (long) status
.st_uid
);
1890 _bfd_ar_spacepad (hdr
->ar_uid
, sizeof (hdr
->ar_uid
), "%ld",
1892 #ifdef HPUX_LARGE_AR_IDS
1893 /* HP has a very "special" way to handle UID/GID's with numeric values
1895 if (status
.st_gid
> 99999)
1896 hpux_uid_gid_encode (hdr
->ar_gid
, (long) status
.st_gid
);
1899 _bfd_ar_spacepad (hdr
->ar_gid
, sizeof (hdr
->ar_gid
), "%ld",
1901 _bfd_ar_spacepad (hdr
->ar_mode
, sizeof (hdr
->ar_mode
), "%-8lo",
1903 if (status
.st_size
- (bfd_size_type
) status
.st_size
!= 0)
1905 bfd_set_error (bfd_error_file_too_big
);
1909 if (!_bfd_ar_sizepad (hdr
->ar_size
, sizeof (hdr
->ar_size
), status
.st_size
))
1914 memcpy (hdr
->ar_fmag
, ARFMAG
, 2);
1915 ared
->parsed_size
= status
.st_size
;
1916 ared
->arch_header
= (char *) hdr
;
1921 /* Analogous to stat call. */
1924 bfd_generic_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
1929 if (abfd
->arelt_data
== NULL
)
1931 bfd_set_error (bfd_error_invalid_operation
);
1935 hdr
= arch_hdr (abfd
);
1936 /* PR 17512: file: 3d9e9fe9. */
1939 #define foo(arelt, stelt, size) \
1940 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1941 if (aloser == hdr->arelt) \
1944 /* Some platforms support special notations for large IDs. */
1945 #ifdef HPUX_LARGE_AR_IDS
1946 # define foo2(arelt, stelt, size) \
1947 if (hdr->arelt[5] == ' ') \
1949 foo (arelt, stelt, size); \
1954 for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
1956 if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
1959 buf->stelt += hdr->arelt[cnt] - ' '; \
1961 if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
1964 buf->stelt += hdr->arelt[5] - '@'; \
1967 # define foo2(arelt, stelt, size) foo (arelt, stelt, size)
1970 foo (ar_date
, st_mtime
, 10);
1971 foo2 (ar_uid
, st_uid
, 10);
1972 foo2 (ar_gid
, st_gid
, 10);
1973 foo (ar_mode
, st_mode
, 8);
1975 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1981 bfd_dont_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
1983 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1984 Fortunately ic960 users will never use that option. Fixing this
1985 is very hard; fortunately I know how to do it and will do so once
1986 intel's release is out the door. */
1988 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1990 const char *filename
;
1991 size_t maxlen
= ar_maxnamelen (abfd
);
1993 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1995 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
1999 filename
= normalize (abfd
, pathname
);
2000 if (filename
== NULL
)
2006 length
= strlen (filename
);
2008 if (length
<= maxlen
)
2009 memcpy (hdr
->ar_name
, filename
, length
);
2011 /* Add the padding character if there is room for it. */
2013 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
2014 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2018 bfd_bsd_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2020 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2022 const char *filename
= lbasename (pathname
);
2023 size_t maxlen
= ar_maxnamelen (abfd
);
2025 length
= strlen (filename
);
2027 if (length
<= maxlen
)
2028 memcpy (hdr
->ar_name
, filename
, length
);
2031 /* pathname: meet procrustes */
2032 memcpy (hdr
->ar_name
, filename
, maxlen
);
2036 if (length
< maxlen
)
2037 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2040 /* Store name into ar header. Truncates the name to fit.
2041 1> strip pathname to be just the basename.
2042 2> if it's short enuf to fit, stuff it in.
2043 3> If it doesn't end with .o, truncate it to fit
2044 4> truncate it before the .o, append .o, stuff THAT in. */
2046 /* This is what gnu ar does. It's better but incompatible with the
2050 bfd_gnu_truncate_arname (bfd
*abfd
, const char *pathname
, char *arhdr
)
2052 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
2054 const char *filename
= lbasename (pathname
);
2055 size_t maxlen
= ar_maxnamelen (abfd
);
2057 length
= strlen (filename
);
2059 if (length
<= maxlen
)
2060 memcpy (hdr
->ar_name
, filename
, length
);
2063 /* pathname: meet procrustes. */
2064 memcpy (hdr
->ar_name
, filename
, maxlen
);
2065 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
2067 hdr
->ar_name
[maxlen
- 2] = '.';
2068 hdr
->ar_name
[maxlen
- 1] = 'o';
2074 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
2078 _bfd_noarchive_truncate_arname (bfd
*abfd ATTRIBUTE_UNUSED
,
2079 const char *pathname ATTRIBUTE_UNUSED
,
2080 char *arhdr ATTRIBUTE_UNUSED
)
2084 /* The BFD is open for write and has its format set to bfd_archive. */
2087 _bfd_write_archive_contents (bfd
*arch
)
2090 char *etable
= NULL
;
2091 bfd_size_type elength
= 0;
2092 const char *ename
= NULL
;
2093 bfd_boolean makemap
= bfd_has_map (arch
);
2094 /* If no .o's, don't bother to make a map. */
2095 bfd_boolean hasobjects
= FALSE
;
2096 bfd_size_type wrote
;
2100 /* Verify the viability of all entries; if any of them live in the
2101 filesystem (as opposed to living in an archive open for input)
2102 then construct a fresh ar_hdr for them. */
2103 for (current
= arch
->archive_head
;
2105 current
= current
->archive_next
)
2107 /* This check is checking the bfds for the objects we're reading
2108 from (which are usually either an object file or archive on
2109 disk), not the archive entries we're writing to. We don't
2110 actually create bfds for the archive members, we just copy
2111 them byte-wise when we write out the archive. */
2112 if (bfd_write_p (current
))
2114 bfd_set_error (bfd_error_invalid_operation
);
2117 if (!current
->arelt_data
)
2119 current
->arelt_data
=
2120 bfd_ar_hdr_from_filesystem (arch
, current
->filename
, current
);
2121 if (!current
->arelt_data
)
2124 /* Put in the file name. */
2125 BFD_SEND (arch
, _bfd_truncate_arname
,
2126 (arch
, current
->filename
, (char *) arch_hdr (current
)));
2129 if (makemap
&& ! hasobjects
)
2130 { /* Don't bother if we won't make a map! */
2131 if ((bfd_check_format (current
, bfd_object
)))
2136 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
2137 (arch
, &etable
, &elength
, &ename
)))
2140 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
2143 if (bfd_is_thin_archive (arch
))
2145 wrote
= bfd_bwrite (armag
, SARMAG
, arch
);
2146 if (wrote
!= SARMAG
)
2149 if (makemap
&& hasobjects
)
2151 if (! _bfd_compute_and_write_armap (arch
, (unsigned int) elength
))
2159 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2160 memcpy (hdr
.ar_name
, ename
, strlen (ename
));
2161 /* Round size up to even number in archive header. */
2162 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
),
2163 (elength
+ 1) & ~(bfd_size_type
) 1))
2165 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2166 if ((bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2167 != sizeof (struct ar_hdr
))
2168 || bfd_bwrite (etable
, elength
, arch
) != elength
)
2170 if ((elength
% 2) == 1)
2172 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2177 for (current
= arch
->archive_head
;
2179 current
= current
->archive_next
)
2181 char buffer
[DEFAULT_BUFFERSIZE
];
2182 bfd_size_type remaining
= arelt_size (current
);
2184 /* Write ar header. */
2185 if (!_bfd_write_ar_hdr (arch
, current
))
2187 if (bfd_is_thin_archive (arch
))
2189 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
2194 unsigned int amt
= DEFAULT_BUFFERSIZE
;
2196 if (amt
> remaining
)
2199 if (bfd_bread (buffer
, amt
, current
) != amt
)
2201 if (bfd_get_error () != bfd_error_system_call
)
2202 bfd_set_error (bfd_error_file_truncated
);
2205 if (bfd_bwrite (buffer
, amt
, arch
) != amt
)
2210 if ((arelt_size (current
) % 2) == 1)
2212 if (bfd_bwrite (&ARFMAG
[1], 1, arch
) != 1)
2217 if (makemap
&& hasobjects
)
2219 /* Verify the timestamp in the archive file. If it would not be
2220 accepted by the linker, rewrite it until it would be. If
2221 anything odd happens, break out and just return. (The
2222 Berkeley linker checks the timestamp and refuses to read the
2223 table-of-contents if it is >60 seconds less than the file's
2224 modified-time. That painful hack requires this painful hack. */
2228 if (bfd_update_armap_timestamp (arch
))
2231 (_("warning: writing archive was slow: rewriting timestamp"));
2233 while (++tries
< 6);
2239 bfd_set_input_error (current
, bfd_get_error ());
2243 /* Note that the namidx for the first symbol is 0. */
2246 _bfd_compute_and_write_armap (bfd
*arch
, unsigned int elength
)
2248 char *first_name
= NULL
;
2250 file_ptr elt_no
= 0;
2251 struct orl
*map
= NULL
;
2252 unsigned int orl_max
= 1024; /* Fine initial default. */
2253 unsigned int orl_count
= 0;
2255 asymbol
**syms
= NULL
;
2259 static bfd_boolean report_plugin_err
= TRUE
;
2261 /* Dunno if this is the best place for this info... */
2263 elength
+= sizeof (struct ar_hdr
);
2264 elength
+= elength
% 2;
2266 amt
= orl_max
* sizeof (struct orl
);
2267 map
= (struct orl
*) bfd_malloc (amt
);
2271 /* We put the symbol names on the arch objalloc, and then discard
2273 first_name
= (char *) bfd_alloc (arch
, 1);
2274 if (first_name
== NULL
)
2277 /* Drop all the files called __.SYMDEF, we're going to make our own. */
2278 while (arch
->archive_head
2279 && strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
2280 arch
->archive_head
= arch
->archive_head
->archive_next
;
2282 /* Map over each element. */
2283 for (current
= arch
->archive_head
;
2285 current
= current
->archive_next
, elt_no
++)
2287 if (bfd_check_format (current
, bfd_object
)
2288 && (bfd_get_file_flags (current
) & HAS_SYMS
) != 0)
2294 if (current
->lto_slim_object
&& report_plugin_err
)
2296 report_plugin_err
= FALSE
;
2298 (_("%pB: plugin needed to handle lto object"),
2302 storage
= bfd_get_symtab_upper_bound (current
);
2308 if (storage
> syms_max
)
2313 syms
= (asymbol
**) bfd_malloc (syms_max
);
2317 symcount
= bfd_canonicalize_symtab (current
, syms
);
2321 /* Now map over all the symbols, picking out the ones we
2323 for (src_count
= 0; src_count
< symcount
; src_count
++)
2325 flagword flags
= (syms
[src_count
])->flags
;
2326 asection
*sec
= syms
[src_count
]->section
;
2328 if (((flags
& (BSF_GLOBAL
2331 | BSF_GNU_UNIQUE
)) != 0
2332 || bfd_is_com_section (sec
))
2333 && ! bfd_is_und_section (sec
))
2335 bfd_size_type namelen
;
2336 struct orl
*new_map
;
2338 /* This symbol will go into the archive header. */
2339 if (orl_count
== orl_max
)
2342 amt
= orl_max
* sizeof (struct orl
);
2343 new_map
= (struct orl
*) bfd_realloc (map
, amt
);
2344 if (new_map
== NULL
)
2350 if (syms
[src_count
]->name
[0] == '_'
2351 && syms
[src_count
]->name
[1] == '_'
2352 && strcmp (syms
[src_count
]->name
2353 + (syms
[src_count
]->name
[2] == '_'),
2354 "__gnu_lto_slim") == 0
2355 && report_plugin_err
)
2357 report_plugin_err
= FALSE
;
2359 (_("%pB: plugin needed to handle lto object"),
2362 namelen
= strlen (syms
[src_count
]->name
);
2363 amt
= sizeof (char *);
2364 map
[orl_count
].name
= (char **) bfd_alloc (arch
, amt
);
2365 if (map
[orl_count
].name
== NULL
)
2367 *(map
[orl_count
].name
) = (char *) bfd_alloc (arch
,
2369 if (*(map
[orl_count
].name
) == NULL
)
2371 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
2372 map
[orl_count
].u
.abfd
= current
;
2373 map
[orl_count
].namidx
= stridx
;
2375 stridx
+= namelen
+ 1;
2381 /* Now ask the BFD to free up any cached information, so we
2382 don't fill all of memory with symbol tables. */
2383 if (! bfd_free_cached_info (current
))
2388 /* OK, now we have collected all the data, let's write them out. */
2389 ret
= BFD_SEND (arch
, write_armap
,
2390 (arch
, elength
, map
, orl_count
, stridx
));
2396 if (first_name
!= NULL
)
2397 bfd_release (arch
, first_name
);
2406 if (first_name
!= NULL
)
2407 bfd_release (arch
, first_name
);
2413 _bfd_bsd_write_armap (bfd
*arch
,
2414 unsigned int elength
,
2416 unsigned int orl_count
,
2419 int padit
= stridx
& 1;
2420 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
2421 unsigned int stringsize
= stridx
+ padit
;
2422 /* Include 8 bytes to store ranlibsize and stringsize in output. */
2423 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
2424 file_ptr firstreal
, first
;
2432 first
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
2436 current
= arch
->archive_head
;
2437 last_elt
= current
; /* Last element arch seen. */
2438 for (count
= 0; count
< orl_count
; count
++)
2440 unsigned int offset
;
2442 if (map
[count
].u
.abfd
!= last_elt
)
2446 struct areltdata
*ared
= arch_eltdata (current
);
2448 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2449 + sizeof (struct ar_hdr
));
2450 firstreal
+= firstreal
% 2;
2451 current
= current
->archive_next
;
2453 while (current
!= map
[count
].u
.abfd
);
2456 /* The archive file format only has 4 bytes to store the offset
2457 of the member. Generate 64-bit archive if an archive is past
2459 offset
= (unsigned int) firstreal
;
2460 if (firstreal
!= (file_ptr
) offset
)
2461 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2468 /* If deterministic, we use 0 as the timestamp in the map.
2469 Some linkers may require that the archive filesystem modification
2470 time is less than (or near to) the archive map timestamp. Those
2471 linkers should not be used with deterministic mode. (GNU ld and
2472 Gold do not have this restriction.) */
2473 bfd_ardata (arch
)->armap_timestamp
= 0;
2476 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0)
2478 struct stat statbuf
;
2480 if (stat (arch
->filename
, &statbuf
) == 0)
2481 bfd_ardata (arch
)->armap_timestamp
= (statbuf
.st_mtime
2482 + ARMAP_TIME_OFFSET
);
2487 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2488 memcpy (hdr
.ar_name
, RANLIBMAG
, strlen (RANLIBMAG
));
2489 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2490 + offsetof (struct ar_hdr
, ar_date
[0]));
2491 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2492 bfd_ardata (arch
)->armap_timestamp
);
2493 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", uid
);
2494 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", gid
);
2495 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2497 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2498 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2499 != sizeof (struct ar_hdr
))
2501 H_PUT_32 (arch
, ranlibsize
, temp
);
2502 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2506 current
= arch
->archive_head
;
2507 last_elt
= current
; /* Last element arch seen. */
2508 for (count
= 0; count
< orl_count
; count
++)
2510 unsigned int offset
;
2511 bfd_byte buf
[BSD_SYMDEF_SIZE
];
2513 if (map
[count
].u
.abfd
!= last_elt
)
2517 struct areltdata
*ared
= arch_eltdata (current
);
2519 firstreal
+= (ared
->parsed_size
+ ared
->extra_size
2520 + sizeof (struct ar_hdr
));
2521 firstreal
+= firstreal
% 2;
2522 current
= current
->archive_next
;
2524 while (current
!= map
[count
].u
.abfd
);
2527 /* The archive file format only has 4 bytes to store the offset
2528 of the member. Check to make sure that firstreal has not grown
2530 offset
= (unsigned int) firstreal
;
2531 if (firstreal
!= (file_ptr
) offset
)
2533 bfd_set_error (bfd_error_file_truncated
);
2538 H_PUT_32 (arch
, map
[count
].namidx
, buf
);
2539 H_PUT_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
2540 if (bfd_bwrite (buf
, BSD_SYMDEF_SIZE
, arch
)
2545 /* Now write the strings themselves. */
2546 H_PUT_32 (arch
, stringsize
, temp
);
2547 if (bfd_bwrite (temp
, sizeof (temp
), arch
) != sizeof (temp
))
2549 for (count
= 0; count
< orl_count
; count
++)
2551 size_t len
= strlen (*map
[count
].name
) + 1;
2553 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2557 /* The spec sez this should be a newline. But in order to be
2558 bug-compatible for sun's ar we use a null. */
2561 if (bfd_bwrite ("", 1, arch
) != 1)
2568 /* At the end of archive file handling, update the timestamp in the
2569 file, so the linker will accept it.
2571 Return TRUE if the timestamp was OK, or an unusual problem happened.
2572 Return FALSE if we updated the timestamp. */
2575 _bfd_archive_bsd_update_armap_timestamp (bfd
*arch
)
2577 struct stat archstat
;
2580 /* If creating deterministic archives, just leave the timestamp as-is. */
2581 if ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) != 0)
2584 /* Flush writes, get last-write timestamp from file, and compare it
2585 to the timestamp IN the file. */
2587 if (bfd_stat (arch
, &archstat
) == -1)
2589 bfd_perror (_("Reading archive file mod timestamp"));
2591 /* Can't read mod time for some reason. */
2594 if (((long) archstat
.st_mtime
) <= bfd_ardata (arch
)->armap_timestamp
)
2595 /* OK by the linker's rules. */
2598 /* Update the timestamp. */
2599 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2601 /* Prepare an ASCII version suitable for writing. */
2602 memset (hdr
.ar_date
, ' ', sizeof (hdr
.ar_date
));
2603 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2604 bfd_ardata (arch
)->armap_timestamp
);
2606 /* Write it into the file. */
2607 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2608 + offsetof (struct ar_hdr
, ar_date
[0]));
2609 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2610 || (bfd_bwrite (hdr
.ar_date
, sizeof (hdr
.ar_date
), arch
)
2611 != sizeof (hdr
.ar_date
)))
2613 bfd_perror (_("Writing updated armap timestamp"));
2615 /* Some error while writing. */
2619 /* We updated the timestamp successfully. */
2623 /* A coff armap looks like :
2625 struct ar_hdr with name = '/'
2627 offset of file for symbol 0
2628 offset of file for symbol 1
2630 offset of file for symbol n-1
2637 _bfd_coff_write_armap (bfd
*arch
,
2638 unsigned int elength
,
2640 unsigned int symbol_count
,
2643 /* The size of the ranlib is the number of exported symbols in the
2644 archive * the number of bytes in an int, + an int for the count. */
2645 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2646 unsigned int stringsize
= stridx
;
2647 unsigned int mapsize
= stringsize
+ ranlibsize
;
2648 file_ptr archive_member_file_ptr
;
2649 file_ptr first_archive_member_file_ptr
;
2650 bfd
*current
= arch
->archive_head
;
2653 int padit
= mapsize
& 1;
2658 /* Work out where the first object file will go in the archive. */
2659 first_archive_member_file_ptr
= (mapsize
2661 + sizeof (struct ar_hdr
)
2665 current
= arch
->archive_head
;
2667 archive_member_file_ptr
= first_archive_member_file_ptr
;
2668 while (current
!= NULL
&& count
< symbol_count
)
2670 /* For each symbol which is used defined in this object, write
2671 out the object file's address in the archive. */
2673 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2675 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2677 /* Generate 64-bit archive if an archive is past its 4Gb
2679 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2680 return _bfd_archive_64_bit_write_armap (arch
, elength
, map
,
2681 symbol_count
, stridx
);
2684 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2685 if (! bfd_is_thin_archive (arch
))
2687 /* Add size of this archive entry. */
2688 archive_member_file_ptr
+= arelt_size (current
);
2689 /* Remember about the even alignment. */
2690 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2692 current
= current
->archive_next
;
2696 memset (&hdr
, ' ', sizeof (struct ar_hdr
));
2697 hdr
.ar_name
[0] = '/';
2698 if (!_bfd_ar_sizepad (hdr
.ar_size
, sizeof (hdr
.ar_size
), mapsize
))
2700 _bfd_ar_spacepad (hdr
.ar_date
, sizeof (hdr
.ar_date
), "%ld",
2701 ((arch
->flags
& BFD_DETERMINISTIC_OUTPUT
) == 0
2702 ? time (NULL
) : 0));
2703 /* This, at least, is what Intel coff sets the values to. */
2704 _bfd_ar_spacepad (hdr
.ar_uid
, sizeof (hdr
.ar_uid
), "%ld", 0);
2705 _bfd_ar_spacepad (hdr
.ar_gid
, sizeof (hdr
.ar_gid
), "%ld", 0);
2706 _bfd_ar_spacepad (hdr
.ar_mode
, sizeof (hdr
.ar_mode
), "%-7lo", 0);
2707 memcpy (hdr
.ar_fmag
, ARFMAG
, 2);
2709 /* Write the ar header for this item and the number of symbols. */
2710 if (bfd_bwrite (&hdr
, sizeof (struct ar_hdr
), arch
)
2711 != sizeof (struct ar_hdr
))
2714 if (!bfd_write_bigendian_4byte_int (arch
, symbol_count
))
2717 /* Two passes, first write the file offsets for each symbol -
2718 remembering that each offset is on a two byte boundary. */
2720 /* Write out the file offset for the file associated with each
2721 symbol, and remember to keep the offsets padded out. */
2723 current
= arch
->archive_head
;
2725 archive_member_file_ptr
= first_archive_member_file_ptr
;
2726 while (current
!= NULL
&& count
< symbol_count
)
2728 /* For each symbol which is used defined in this object, write
2729 out the object file's address in the archive. */
2731 while (count
< symbol_count
&& map
[count
].u
.abfd
== current
)
2733 unsigned int offset
= (unsigned int) archive_member_file_ptr
;
2735 /* Catch an attempt to grow an archive past its 4Gb limit. */
2736 if (archive_member_file_ptr
!= (file_ptr
) offset
)
2738 bfd_set_error (bfd_error_file_truncated
);
2741 if (!bfd_write_bigendian_4byte_int (arch
, offset
))
2745 archive_member_file_ptr
+= sizeof (struct ar_hdr
);
2746 if (! bfd_is_thin_archive (arch
))
2748 /* Add size of this archive entry. */
2749 archive_member_file_ptr
+= arelt_size (current
);
2750 /* Remember about the even alignment. */
2751 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2753 current
= current
->archive_next
;
2756 /* Now write the strings themselves. */
2757 for (count
= 0; count
< symbol_count
; count
++)
2759 size_t len
= strlen (*map
[count
].name
) + 1;
2761 if (bfd_bwrite (*map
[count
].name
, len
, arch
) != len
)
2765 /* The spec sez this should be a newline. But in order to be
2766 bug-compatible for arc960 we use a null. */
2769 if (bfd_bwrite ("", 1, arch
) != 1)
2777 _bfd_noarchive_write_armap
2778 (bfd
*arch ATTRIBUTE_UNUSED
,
2779 unsigned int elength ATTRIBUTE_UNUSED
,
2780 struct orl
*map ATTRIBUTE_UNUSED
,
2781 unsigned int orl_count ATTRIBUTE_UNUSED
,
2782 int stridx ATTRIBUTE_UNUSED
)
2788 archive_close_worker (void **slot
, void *inf ATTRIBUTE_UNUSED
)
2790 struct ar_cache
*ent
= (struct ar_cache
*) *slot
;
2792 bfd_close_all_done (ent
->arbfd
);
2797 _bfd_unlink_from_archive_parent (bfd
*abfd
)
2799 if (arch_eltdata (abfd
) != NULL
)
2801 struct areltdata
*ared
= arch_eltdata (abfd
);
2802 htab_t htab
= (htab_t
) ared
->parent_cache
;
2806 struct ar_cache ent
;
2809 ent
.ptr
= ared
->key
;
2810 slot
= htab_find_slot (htab
, &ent
, NO_INSERT
);
2813 BFD_ASSERT (((struct ar_cache
*) *slot
)->arbfd
== abfd
);
2814 htab_clear_slot (htab
, slot
);
2821 _bfd_archive_close_and_cleanup (bfd
*abfd
)
2823 if (bfd_read_p (abfd
) && abfd
->format
== bfd_archive
)
2829 /* Close nested archives (if this bfd is a thin archive). */
2830 for (nbfd
= abfd
->nested_archives
; nbfd
; nbfd
= next
)
2832 next
= nbfd
->archive_next
;
2836 htab
= bfd_ardata (abfd
)->cache
;
2839 htab_traverse_noresize (htab
, archive_close_worker
, NULL
);
2841 bfd_ardata (abfd
)->cache
= NULL
;
2845 _bfd_unlink_from_archive_parent (abfd
);
2847 if (abfd
->is_linker_output
)
2848 (*abfd
->link
.hash
->hash_table_free
) (abfd
);