1 /* BFD back-end for archive files (libraries).
2 Copyright 1990, 91, 92, 93, 94 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 Archive contents of output BFDs are chained through the
44 <<next>> pointer in a BFD. The first one is findable through
45 the <<archive_head>> slot of the archive. Set it with
46 <<bfd_set_archive_head>> (q.v.). A given BFD may be in only one
47 open output archive at a time.
49 As expected, the BFD archive code is more general than the
50 archive code of any given environment. BFD archives may
51 contain files of different formats (e.g., a.out and coff) and
52 even different architectures. You may even place archives
53 recursively into archives!
55 This can cause unexpected confusion, since some archive
56 formats are more expressive than others. For instance, Intel
57 COFF archives can preserve long filenames; SunOS a.out archives
58 cannot. If you move a file from the first to the second
59 format and back again, the filename may be truncated.
60 Likewise, different a.out environments have different
61 conventions as to how they truncate filenames, whether they
62 preserve directory names in filenames, etc. When
63 interoperating with native tools, be sure your files are
66 Beware: most of these formats do not react well to the
67 presence of spaces in filenames. We do the best we can, but
68 can't always handle this case due to restrictions in the format of
69 archives. Many Unix utilities are braindead in regards to
70 spaces and such in filenames anyway, so this shouldn't be much
73 Archives are supported in BFD in <<archive.c>>.
78 o - all archive elements start on an even boundary, newline padded;
79 o - all arch headers are char *;
80 o - all arch headers are the same size (across architectures).
83 /* Some formats provide a way to cram a long filename into the short
84 (16 chars) space provided by a BSD archive. The trick is: make a
85 special "file" in the front of the archive, sort of like the SYMDEF
86 entry. If the filename is too long to fit, put it in the extended
87 name table, and use its index as the filename. To prevent
88 confusion prepend the index with a space. This means you can't
89 have filenames that start with a space, but then again, many Unix
90 utilities can't handle that anyway.
92 This scheme unfortunately requires that you stand on your head in
93 order to write an archive since you need to put a magic file at the
94 front, and need to touch every entry to do so. C'est la vie.
96 We support two variants of this idea:
97 The SVR4 format (extended name table is named "//"),
98 and an extended pseudo-BSD variant (extended name table is named
99 "ARFILENAMES/"). The origin of the latter format is uncertain.
101 BSD 4.4 uses a third scheme: It writes a long filename
102 directly after the header. This allows 'ar q' to work.
103 We currently can read BSD 4.4 archives, but not write them.
106 /* Summary of archive member names:
108 Symbol table (must be first):
109 "__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
110 "/ " - Symbol table, system 5 style.
112 Long name table (must be before regular file members):
113 "// " - Long name table, System 5 R4 style.
114 "ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
116 Regular file members with short names:
117 "filename.o/ " - Regular file, System 5 style (embedded spaces ok).
118 "filename.o " - Regular file, Berkeley style (no embedded spaces).
120 Regular files with long names (or embedded spaces, for BSD variants):
121 "/18 " - SVR4 style, name at offset 18 in name table.
122 "#1/23 " - Long name (or embedded paces) 23 characters long,
123 BSD 4.4 style, full name follows header.
124 Implemented for reading, not writing.
125 " 18 " - Long name 18 characters long, extended pseudo-BSD.
132 #include "aout/ranlib.h"
134 #include <string.h> /* For memchr, strrchr and friends */
142 #define BFD_GNU960_ARMAG(abfd) (BFD_COFF_FILE_P((abfd)) ? ARMAG : ARMAGB)
145 /* Can't define this in hosts/foo.h, because (e.g. in gprof) the hosts file
146 is included, then obstack.h, which thinks if offsetof is defined, it
147 doesn't need to include stddef.h. */
148 /* Define offsetof for those systems which lack it */
150 #if !defined (offsetof)
151 #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
154 /* We keep a cache of archive filepointers to archive elements to
155 speed up searching the archive by filepos. We only add an entry to
156 the cache when we actually read one. We also don't sort the cache;
157 it's generally short enough to search linearly.
158 Note that the pointers here point to the front of the ar_hdr, not
159 to the front of the contents!
165 struct ar_cache
*next
;
168 #define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
169 #define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
171 #define arch_eltdata(bfd) ((struct areltdata *)((bfd)->arelt_data))
172 #define arch_hdr(bfd) ((struct ar_hdr *)arch_eltdata(bfd)->arch_header)
174 static char *get_extended_arelt_filename
PARAMS ((bfd
*arch
,
176 static boolean do_slurp_bsd_armap
PARAMS ((bfd
*abfd
));
177 static boolean do_slurp_coff_armap
PARAMS ((bfd
*abfd
));
178 static const char *normalize
PARAMS ((bfd
*, const char *file
));
179 static struct areltdata
*bfd_ar_hdr_from_filesystem
PARAMS ((bfd
*abfd
,
183 _bfd_generic_mkarchive (abfd
)
186 abfd
->tdata
.aout_ar_data
= ((struct artdata
*)
187 bfd_zalloc (abfd
, sizeof (struct artdata
)));
189 if (bfd_ardata (abfd
) == NULL
)
192 bfd_ardata (abfd
)->cache
= NULL
;
193 bfd_ardata (abfd
)->archive_head
= NULL
;
194 bfd_ardata (abfd
)->symdefs
= NULL
;
195 bfd_ardata (abfd
)->extended_names
= NULL
;
196 bfd_ardata (abfd
)->tdata
= NULL
;
206 symindex bfd_get_next_mapent(bfd *abfd, symindex previous, carsym **sym);
209 Step through archive @var{abfd}'s symbol table (if it
210 has one). Successively update @var{sym} with the next symbol's
211 information, returning that symbol's (internal) index into the
214 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
215 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
218 A <<carsym>> is a canonical archive symbol. The only
219 user-visible element is its name, a null-terminated string.
223 bfd_get_next_mapent (abfd
, prev
, entry
)
228 if (!bfd_has_map (abfd
))
230 bfd_set_error (bfd_error_invalid_operation
);
231 return BFD_NO_MORE_SYMBOLS
;
234 if (prev
== BFD_NO_MORE_SYMBOLS
)
238 if (prev
>= bfd_ardata (abfd
)->symdef_count
)
239 return BFD_NO_MORE_SYMBOLS
;
241 *entry
= (bfd_ardata (abfd
)->symdefs
+ prev
);
245 /* To be called by backends only */
248 _bfd_create_empty_archive_element_shell (obfd
)
251 return _bfd_new_bfd_contained_in (obfd
);
259 boolean bfd_set_archive_head(bfd *output, bfd *new_head);
262 Set the head of the chain of
263 BFDs contained in the archive @var{output} to @var{new_head}.
267 bfd_set_archive_head (output_archive
, new_head
)
272 output_archive
->archive_head
= new_head
;
277 _bfd_look_for_bfd_in_cache (arch_bfd
, filepos
)
281 struct ar_cache
*current
;
283 for (current
= bfd_ardata (arch_bfd
)->cache
; current
!= NULL
;
284 current
= current
->next
)
285 if (current
->ptr
== filepos
)
286 return current
->arelt
;
291 /* Kind of stupid to call cons for each one, but we don't do too many */
293 _bfd_add_bfd_to_archive_cache (arch_bfd
, filepos
, new_elt
)
294 bfd
*arch_bfd
, *new_elt
;
297 struct ar_cache
*new_cache
= ((struct ar_cache
*)
298 bfd_zalloc (arch_bfd
,
299 sizeof (struct ar_cache
)));
301 if (new_cache
== NULL
)
304 new_cache
->ptr
= filepos
;
305 new_cache
->arelt
= new_elt
;
306 new_cache
->next
= (struct ar_cache
*) NULL
;
307 if (bfd_ardata (arch_bfd
)->cache
== NULL
)
308 bfd_ardata (arch_bfd
)->cache
= new_cache
;
311 struct ar_cache
*current
= bfd_ardata (arch_bfd
)->cache
;
313 while (current
->next
!= NULL
)
314 current
= current
->next
;
315 current
->next
= new_cache
;
321 /* The name begins with space. Hence the rest of the name is an index into
325 get_extended_arelt_filename (arch
, name
)
329 unsigned long index
= 0;
331 /* Should extract string so that I can guarantee not to overflow into
332 the next region, but I'm too lazy. */
334 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
335 index
= strtol (name
+ 1, NULL
, 10);
338 bfd_set_error (bfd_error_malformed_archive
);
342 return bfd_ardata (arch
)->extended_names
+ index
;
345 /* This functions reads an arch header and returns an areltdata pointer, or
348 Presumes the file pointer is already in the right place (ie pointing
349 to the ar_hdr in the file). Moves the file pointer; on success it
350 should be pointing to the front of the file contents; on failure it
351 could have been moved arbitrarily.
355 _bfd_generic_read_ar_hdr (abfd
)
358 return _bfd_generic_read_ar_hdr_mag (abfd
, (const char *) NULL
);
361 /* Alpha ECOFF uses an optional different ARFMAG value, so we have a
362 variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
365 _bfd_generic_read_ar_hdr_mag (abfd
, mag
)
370 char *hdrp
= (char *) &hdr
;
371 unsigned int parsed_size
;
372 struct areltdata
*ared
;
373 char *filename
= NULL
;
374 unsigned int namelen
= 0;
375 unsigned int allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
378 if (bfd_read ((PTR
) hdrp
, 1, sizeof (struct ar_hdr
), abfd
)
379 != sizeof (struct ar_hdr
))
381 if (bfd_get_error () != bfd_error_system_call
)
382 bfd_set_error (bfd_error_no_more_archived_files
);
385 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2) != 0
387 || strncmp (hdr
.ar_fmag
, mag
, 2) != 0))
389 bfd_set_error (bfd_error_malformed_archive
);
394 parsed_size
= strtol (hdr
.ar_size
, NULL
, 10);
397 bfd_set_error (bfd_error_malformed_archive
);
401 /* Extract the filename from the archive - there are two ways to
402 specify an extendend name table, either the first char of the
403 name is a space, or it's a slash. */
404 if ((hdr
.ar_name
[0] == '/'
405 || (hdr
.ar_name
[0] == ' '
406 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
407 && bfd_ardata (abfd
)->extended_names
!= NULL
)
409 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
);
410 if (filename
== NULL
)
412 bfd_set_error (bfd_error_malformed_archive
);
416 /* BSD4.4-style long filename.
417 Only implemented for reading, so far! */
418 else if (hdr
.ar_name
[0] == '#' && hdr
.ar_name
[1] == '1'
419 && hdr
.ar_name
[2] == '/' && isdigit (hdr
.ar_name
[3]))
421 /* BSD-4.4 extended name */
422 namelen
= atoi (&hdr
.ar_name
[3]);
423 allocsize
+= namelen
+ 1;
424 parsed_size
-= namelen
;
426 allocptr
= bfd_zalloc (abfd
, allocsize
);
427 if (allocptr
== NULL
)
430 + sizeof (struct areltdata
)
431 + sizeof (struct ar_hdr
));
432 if (bfd_read (filename
, 1, namelen
, abfd
) != namelen
)
434 if (bfd_get_error () != bfd_error_system_call
)
435 bfd_set_error (bfd_error_no_more_archived_files
);
438 filename
[namelen
] = '\0';
442 /* We judge the end of the name by looking for '/' or ' '.
443 Note: The SYSV format (terminated by '/') allows embedded
444 spaces, so only look for ' ' if we don't find '/'. */
447 while (hdr
.ar_name
[namelen
] != '\0' &&
448 hdr
.ar_name
[namelen
] != '/')
451 if (namelen
== (unsigned) ar_maxnamelen (abfd
))
454 while (hdr
.ar_name
[namelen
] != ' '
455 && namelen
< (unsigned) ar_maxnamelen (abfd
))
461 allocsize
+= namelen
+ 1;
466 allocptr
= bfd_zalloc (abfd
, allocsize
);
467 if (allocptr
== NULL
)
471 ared
= (struct areltdata
*) allocptr
;
473 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
474 memcpy ((char *) ared
->arch_header
, (char *) &hdr
, sizeof (struct ar_hdr
));
475 ared
->parsed_size
= parsed_size
;
477 if (filename
!= NULL
)
478 ared
->filename
= filename
;
481 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
482 sizeof (struct ar_hdr
));
484 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
485 ared
->filename
[namelen
] = '\0';
491 /* This is an internal function; it's mainly used when indexing
492 through the archive symbol table, but also used to get the next
493 element, since it handles the bookkeeping so nicely for us. */
496 _bfd_get_elt_at_filepos (archive
, filepos
)
500 struct areltdata
*new_areldata
;
503 n_nfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
507 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
510 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
513 n_nfd
= _bfd_create_empty_archive_element_shell (archive
);
516 bfd_release (archive
, (PTR
) new_areldata
);
520 n_nfd
->origin
= bfd_tell (archive
);
521 n_nfd
->arelt_data
= (PTR
) new_areldata
;
522 n_nfd
->filename
= new_areldata
->filename
;
524 if (_bfd_add_bfd_to_archive_cache (archive
, filepos
, n_nfd
))
528 bfd_release (archive
, (PTR
) n_nfd
);
529 bfd_release (archive
, (PTR
) new_areldata
);
533 /* Return the BFD which is referenced by the symbol in ABFD indexed by
534 INDEX. INDEX should have been returned by bfd_get_next_mapent. */
537 _bfd_generic_get_elt_at_index (abfd
, index
)
543 entry
= bfd_ardata (abfd
)->symdefs
+ index
;
544 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
549 bfd_openr_next_archived_file
552 bfd *bfd_openr_next_archived_file(bfd *archive, bfd *previous);
555 Provided a BFD, @var{archive}, containing an archive and NULL, open
556 an input BFD on the first contained element and returns that.
557 Subsequent calls should pass
558 the archive and the previous return value to return a created
559 BFD to the next contained element. NULL is returned when there
565 bfd_openr_next_archived_file (archive
, last_file
)
569 if ((bfd_get_format (archive
) != bfd_archive
) ||
570 (archive
->direction
== write_direction
))
572 bfd_set_error (bfd_error_invalid_operation
);
576 return BFD_SEND (archive
,
577 openr_next_archived_file
,
583 bfd_generic_openr_next_archived_file (archive
, last_file
)
590 filestart
= bfd_ardata (archive
)->first_file_filepos
;
593 unsigned int size
= arelt_size (last_file
);
594 /* Pad to an even boundary...
595 Note that last_file->origin can be odd in the case of
596 BSD-4.4-style element with a long odd size. */
597 filestart
= last_file
->origin
+ size
;
598 filestart
+= filestart
% 2;
601 return _bfd_get_elt_at_filepos (archive
, filestart
);
606 bfd_generic_archive_p (abfd
)
609 struct artdata
*tdata_hold
;
610 char armag
[SARMAG
+ 1];
612 tdata_hold
= abfd
->tdata
.aout_ar_data
;
614 if (bfd_read ((PTR
) armag
, 1, SARMAG
, abfd
) != SARMAG
)
616 if (bfd_get_error () != bfd_error_system_call
)
617 bfd_set_error (bfd_error_wrong_format
);
622 if (strncmp (armag
, BFD_GNU960_ARMAG (abfd
), SARMAG
) != 0)
625 if (strncmp (armag
, ARMAG
, SARMAG
) != 0 &&
626 strncmp (armag
, ARMAGB
, SARMAG
) != 0)
630 /* We are setting bfd_ardata(abfd) here, but since bfd_ardata
631 involves a cast, we can't do it as the left operand of assignment. */
632 abfd
->tdata
.aout_ar_data
= ((struct artdata
*)
633 bfd_zalloc (abfd
, sizeof (struct artdata
)));
635 if (bfd_ardata (abfd
) == NULL
)
638 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
639 bfd_ardata (abfd
)->cache
= NULL
;
640 bfd_ardata (abfd
)->archive_head
= NULL
;
641 bfd_ardata (abfd
)->symdefs
= NULL
;
642 bfd_ardata (abfd
)->extended_names
= NULL
;
643 bfd_ardata (abfd
)->tdata
= NULL
;
645 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
)))
647 bfd_release (abfd
, bfd_ardata (abfd
));
648 abfd
->tdata
.aout_ar_data
= tdata_hold
;
652 if (!BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
654 bfd_release (abfd
, bfd_ardata (abfd
));
655 abfd
->tdata
.aout_ar_data
= tdata_hold
;
659 if (bfd_has_map (abfd
))
663 /* This archive has a map, so we may presume that the contents
664 are object files. Make sure that the first file in the
665 archive can be recognized as an object file for this target.
666 If not, assume that this is the wrong format.
668 This is done because any normal format will recognize any
669 normal archive, regardless of the format of the object files.
670 We do accept an empty archive. */
672 first
= bfd_openr_next_archived_file (abfd
, (bfd
*) NULL
);
677 first
->target_defaulted
= false;
679 if (! bfd_check_format (first
, bfd_object
))
681 else if (first
->xvec
!= abfd
->xvec
)
683 bfd_set_error (bfd_error_wrong_format
);
690 err
= bfd_get_error ();
691 (void) bfd_close (first
);
692 bfd_release (abfd
, bfd_ardata (abfd
));
693 abfd
->tdata
.aout_ar_data
= tdata_hold
;
698 /* We ought to close first here, but we can't, because we
699 have no way to remove it from the archive cache. FIXME. */
706 /* Some constants for a 32 bit BSD archive structure. We do not
707 support 64 bit archives presently; so far as I know, none actually
708 exist. Supporting them would require changing these constants, and
709 changing some bfd_h_get_32 to bfd_h_get_64. */
711 /* The size of an external symdef structure. */
712 #define BSD_SYMDEF_SIZE 8
714 /* The offset from the start of a symdef structure to the file offset. */
715 #define BSD_SYMDEF_OFFSET_SIZE 4
717 /* The size of the symdef count. */
718 #define BSD_SYMDEF_COUNT_SIZE 4
720 /* The size of the string count. */
721 #define BSD_STRING_COUNT_SIZE 4
723 /* Returns false on error, true otherwise */
726 do_slurp_bsd_armap (abfd
)
729 struct areltdata
*mapdata
;
730 unsigned int counter
;
731 bfd_byte
*raw_armap
, *rbase
;
732 struct artdata
*ardata
= bfd_ardata (abfd
);
734 unsigned int parsed_size
;
737 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
740 parsed_size
= mapdata
->parsed_size
;
741 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
743 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
744 if (raw_armap
== (bfd_byte
*) NULL
)
747 if (bfd_read ((PTR
) raw_armap
, 1, parsed_size
, abfd
) != parsed_size
)
749 if (bfd_get_error () != bfd_error_system_call
)
750 bfd_set_error (bfd_error_malformed_archive
);
752 bfd_release (abfd
, (PTR
) raw_armap
);
756 ardata
->symdef_count
= bfd_h_get_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
758 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
759 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
761 /* Probably we're using the wrong byte ordering. */
762 bfd_set_error (bfd_error_wrong_format
);
767 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
768 stringbase
= ((char *) rbase
769 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
770 + BSD_STRING_COUNT_SIZE
);
771 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
772 (ardata
->symdef_count
774 if (!ardata
->symdefs
)
777 for (counter
= 0, set
= ardata
->symdefs
;
778 counter
< ardata
->symdef_count
;
779 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
781 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
782 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
785 ardata
->first_file_filepos
= bfd_tell (abfd
);
786 /* Pad to an even boundary if you have to */
787 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
788 /* FIXME, we should provide some way to free raw_ardata when
789 we are done using the strings from it. For now, it seems
790 to be allocated on an obstack anyway... */
791 bfd_has_map (abfd
) = true;
795 /* Returns false on error, true otherwise */
797 do_slurp_coff_armap (abfd
)
800 struct areltdata
*mapdata
;
801 int *raw_armap
, *rawptr
;
802 struct artdata
*ardata
= bfd_ardata (abfd
);
804 unsigned int stringsize
;
805 unsigned int parsed_size
;
807 unsigned int nsymz
; /* Number of symbols in armap. */
808 bfd_vma (*swap
) PARAMS ((const bfd_byte
*));
809 char int_buf
[sizeof (long)];
810 unsigned int carsym_size
, ptrsize
, i
;
812 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
815 parsed_size
= mapdata
->parsed_size
;
816 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
818 if (bfd_read ((PTR
) int_buf
, 1, 4, abfd
) != 4)
820 if (bfd_get_error () != bfd_error_system_call
)
821 bfd_set_error (bfd_error_malformed_archive
);
824 /* It seems that all numeric information in a coff archive is always
825 in big endian format, nomatter the host or target. */
827 nsymz
= bfd_getb32 ((PTR
) int_buf
);
828 stringsize
= parsed_size
- (4 * nsymz
) - 4;
831 /* ... except that some archive formats are broken, and it may be our
832 fault - the i960 little endian coff sometimes has big and sometimes
833 little, because our tools changed. Here's a horrible hack to clean
836 if (stringsize
> 0xfffff)
838 /* This looks dangerous, let's do it the other way around */
839 nsymz
= bfd_getl32 ((PTR
) int_buf
);
840 stringsize
= parsed_size
- (4 * nsymz
) - 4;
845 /* The coff armap must be read sequentially. So we construct a
846 bsd-style one in core all at once, for simplicity. */
848 carsym_size
= (nsymz
* sizeof (carsym
));
849 ptrsize
= (4 * nsymz
);
851 ardata
->symdefs
= (carsym
*) bfd_zalloc (abfd
, carsym_size
+ stringsize
+ 1);
852 if (ardata
->symdefs
== NULL
)
854 carsyms
= ardata
->symdefs
;
855 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
857 /* Allocate and read in the raw offsets. */
858 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
859 if (raw_armap
== NULL
)
860 goto release_symdefs
;
861 if (bfd_read ((PTR
) raw_armap
, 1, ptrsize
, abfd
) != ptrsize
862 || bfd_read ((PTR
) stringbase
, 1, stringsize
, abfd
) != stringsize
)
864 if (bfd_get_error () != bfd_error_system_call
)
865 bfd_set_error (bfd_error_malformed_archive
);
866 goto release_raw_armap
;
869 /* OK, build the carsyms */
870 for (i
= 0; i
< nsymz
; i
++)
872 rawptr
= raw_armap
+ i
;
873 carsyms
->file_offset
= swap ((PTR
) rawptr
);
874 carsyms
->name
= stringbase
;
875 stringbase
+= strlen (stringbase
) + 1;
880 ardata
->symdef_count
= nsymz
;
881 ardata
->first_file_filepos
= bfd_tell (abfd
);
882 /* Pad to an even boundary if you have to */
883 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
886 bfd_has_map (abfd
) = true;
887 bfd_release (abfd
, (PTR
) raw_armap
);
890 /* Check for a second archive header (as used by PE) */
892 struct areltdata
*tmp
;
894 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
895 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
898 if (tmp
->arch_header
[0] == '/'
899 && tmp
->arch_header
[1] == ' ')
901 ardata
->first_file_filepos
+=
902 (tmp
->parsed_size
+ sizeof(struct ar_hdr
) + 1) & ~1;
904 bfd_release (abfd
, tmp
);
911 bfd_release (abfd
, (PTR
) raw_armap
);
913 bfd_release (abfd
, (PTR
) (ardata
)->symdefs
);
917 /* This routine can handle either coff-style or bsd-style armaps.
918 Returns false on error, true otherwise */
921 bfd_slurp_armap (abfd
)
925 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
932 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
935 if (!strncmp (nextname
, "__.SYMDEF ", 16)
936 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
937 return do_slurp_bsd_armap (abfd
);
938 else if (!strncmp (nextname
, "/ ", 16))
939 return do_slurp_coff_armap (abfd
);
941 bfd_has_map (abfd
) = false;
945 /* Returns false on error, true otherwise */
946 /* flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
947 header is in a slightly different order and the map name is '/'.
948 This flavour is used by hp300hpux. */
950 #define HPUX_SYMDEF_COUNT_SIZE 2
953 bfd_slurp_bsd_armap_f2 (abfd
)
956 struct areltdata
*mapdata
;
958 unsigned int counter
;
959 bfd_byte
*raw_armap
, *rbase
;
960 struct artdata
*ardata
= bfd_ardata (abfd
);
962 unsigned int stringsize
;
964 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
971 /* The archive has at least 16 bytes in it */
972 if (bfd_seek (abfd
, -16L, SEEK_CUR
) != 0)
975 if (!strncmp (nextname
, "__.SYMDEF ", 16)
976 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
977 return do_slurp_bsd_armap (abfd
);
979 if (strncmp (nextname
, "/ ", 16))
981 bfd_has_map (abfd
) = false;
985 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
989 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, mapdata
->parsed_size
);
990 if (raw_armap
== NULL
)
993 bfd_release (abfd
, (PTR
) mapdata
);
997 if (bfd_read ((PTR
) raw_armap
, 1, mapdata
->parsed_size
, abfd
) !=
998 mapdata
->parsed_size
)
1000 if (bfd_get_error () != bfd_error_system_call
)
1001 bfd_set_error (bfd_error_malformed_archive
);
1003 bfd_release (abfd
, (PTR
) raw_armap
);
1007 ardata
->symdef_count
= bfd_h_get_16 (abfd
, (PTR
) raw_armap
);
1009 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
1010 > mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
)
1012 /* Probably we're using the wrong byte ordering. */
1013 bfd_set_error (bfd_error_wrong_format
);
1019 stringsize
= bfd_h_get_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1020 /* skip sym count and string sz */
1021 stringbase
= ((char *) raw_armap
1022 + HPUX_SYMDEF_COUNT_SIZE
1023 + BSD_STRING_COUNT_SIZE
);
1024 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1025 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
1026 (ardata
->symdef_count
1027 * BSD_SYMDEF_SIZE
));
1028 if (!ardata
->symdefs
)
1031 for (counter
= 0, set
= ardata
->symdefs
;
1032 counter
< ardata
->symdef_count
;
1033 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1035 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
1036 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1039 ardata
->first_file_filepos
= bfd_tell (abfd
);
1040 /* Pad to an even boundary if you have to */
1041 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1042 /* FIXME, we should provide some way to free raw_ardata when
1043 we are done using the strings from it. For now, it seems
1044 to be allocated on an obstack anyway... */
1045 bfd_has_map (abfd
) = true;
1049 /** Extended name table.
1051 Normally archives support only 14-character filenames.
1053 Intel has extended the format: longer names are stored in a special
1054 element (the first in the archive, or second if there is an armap);
1055 the name in the ar_hdr is replaced by <space><index into filename
1056 element>. Index is the P.R. of an int (decimal). Data General have
1057 extended the format by using the prefix // for the special element */
1059 /* Returns false on error, true otherwise */
1061 _bfd_slurp_extended_name_table (abfd
)
1065 struct areltdata
*namedata
;
1067 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1068 we probably don't want to return true. */
1069 bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
);
1070 if (bfd_read ((PTR
) nextname
, 1, 16, abfd
) == 16)
1072 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
1075 if (strncmp (nextname
, "ARFILENAMES/ ", 16) != 0 &&
1076 strncmp (nextname
, "// ", 16) != 0)
1078 bfd_ardata (abfd
)->extended_names
= NULL
;
1082 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1083 if (namedata
== NULL
)
1086 bfd_ardata (abfd
)->extended_names
=
1087 bfd_zalloc (abfd
, namedata
->parsed_size
);
1088 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1091 bfd_release (abfd
, (PTR
) namedata
);
1095 if (bfd_read ((PTR
) bfd_ardata (abfd
)->extended_names
, 1,
1096 namedata
->parsed_size
, abfd
) != namedata
->parsed_size
)
1098 if (bfd_get_error () != bfd_error_system_call
)
1099 bfd_set_error (bfd_error_malformed_archive
);
1100 bfd_release (abfd
, (PTR
) (bfd_ardata (abfd
)->extended_names
));
1101 bfd_ardata (abfd
)->extended_names
= NULL
;
1105 /* Since the archive is supposed to be printable if it contains
1106 text, the entries in the list are newline-padded, not null
1107 padded. In SVR4-style archives, the names also have a
1108 trailing '/'. DOS/NT created archive often have \ in them
1109 We'll fix all problems here.. */
1111 char *temp
= bfd_ardata (abfd
)->extended_names
;
1112 char *limit
= temp
+ namedata
->parsed_size
;
1113 for (; temp
< limit
; ++temp
) {
1114 if (*temp
== '\012')
1115 temp
[temp
[-1] == '/' ? -1 : 0] = '\0';
1121 /* Pad to an even boundary if you have to */
1122 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1123 bfd_ardata (abfd
)->first_file_filepos
+=
1124 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1126 /* FIXME, we can't release namedata here because it was allocated
1127 below extended_names on the obstack... */
1128 /* bfd_release (abfd, namedata); */
1135 /* Return a copy of the stuff in the filename between any :]> and a
1138 normalize (abfd
, file
)
1146 first
= file
+ strlen (file
) - 1;
1149 while (first
!= file
)
1153 if (*first
== ':' || *first
== ']' || *first
== '>')
1161 copy
= (char *) bfd_alloc (abfd
, last
- first
+ 1);
1165 memcpy (copy
, first
, last
- first
);
1166 copy
[last
- first
] = 0;
1173 normalize (abfd
, file
)
1177 const char *filename
= strrchr (file
, '/');
1179 if (filename
!= (char *) NULL
)
1187 /* Build a BFD style extended name table. */
1190 _bfd_archive_bsd_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1193 bfd_size_type
*tablen
;
1196 *name
= "ARFILENAMES/";
1197 return _bfd_construct_extended_name_table (abfd
, false, tabloc
, tablen
);
1200 /* Build an SVR4 style extended name table. */
1203 _bfd_archive_coff_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1206 bfd_size_type
*tablen
;
1210 return _bfd_construct_extended_name_table (abfd
, true, tabloc
, tablen
);
1213 /* Follows archive_head and produces an extended name table if
1214 necessary. Returns (in tabloc) a pointer to an extended name
1215 table, and in tablen the length of the table. If it makes an entry
1216 it clobbers the filename so that the element may be written without
1217 further massage. Returns true if it ran successfully, false if
1218 something went wrong. A successful return may still involve a
1219 zero-length tablen! */
1222 _bfd_construct_extended_name_table (abfd
, trailing_slash
, tabloc
, tablen
)
1224 boolean trailing_slash
;
1226 bfd_size_type
*tablen
;
1228 unsigned int maxname
= abfd
->xvec
->ar_max_namelen
;
1229 unsigned int total_namelen
= 0;
1235 /* Figure out how long the table should be */
1236 for (current
= abfd
->archive_head
; current
!= NULL
; current
= current
->next
)
1239 unsigned int thislen
;
1241 normal
= normalize (current
, current
->filename
);
1245 thislen
= strlen (normal
);
1247 if (thislen
> maxname
1248 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1251 if (thislen
> maxname
)
1253 /* Add one to leave room for \n. */
1254 total_namelen
+= thislen
+ 1;
1257 /* Leave room for trailing slash. */
1263 struct ar_hdr
*hdr
= arch_hdr (current
);
1264 if (strncmp (normal
, hdr
->ar_name
, thislen
) != 0
1265 || (thislen
< sizeof hdr
->ar_name
1266 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1268 /* Must have been using extended format even though it
1269 didn't need to. Fix it to use normal format. */
1270 memcpy (hdr
->ar_name
, normal
, thislen
);
1271 if (thislen
< maxname
1272 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1273 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1278 if (total_namelen
== 0)
1281 *tabloc
= bfd_zalloc (abfd
, total_namelen
);
1282 if (*tabloc
== NULL
)
1285 *tablen
= total_namelen
;
1288 for (current
= abfd
->archive_head
; current
!= NULL
; current
=
1292 unsigned int thislen
;
1294 normal
= normalize (current
, current
->filename
);
1298 thislen
= strlen (normal
);
1299 if (thislen
> maxname
)
1301 /* Works for now; may need to be re-engineered if we
1302 encounter an oddball archive format and want to
1303 generalise this hack. */
1304 struct ar_hdr
*hdr
= arch_hdr (current
);
1305 strcpy (strptr
, normal
);
1306 if (! trailing_slash
)
1307 strptr
[thislen
] = '\012';
1310 strptr
[thislen
] = '/';
1311 strptr
[thislen
+ 1] = '\012';
1313 hdr
->ar_name
[0] = ar_padchar (current
);
1314 /* We know there will always be enough room (one of the few
1315 cases where you may safely use sprintf). */
1316 sprintf ((hdr
->ar_name
) + 1, "%-d", (unsigned) (strptr
- *tabloc
));
1317 /* Kinda Kludgy. We should just use the returned value of
1318 sprintf but not all implementations get this right */
1320 char *temp
= hdr
->ar_name
+ 2;
1321 for (; temp
< hdr
->ar_name
+ maxname
; temp
++)
1325 strptr
+= thislen
+ 1;
1334 /** A couple of functions for creating ar_hdrs */
1336 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1337 make one. The filename must refer to a filename in the filesystem.
1338 The filename field of the ar_hdr will NOT be initialized */
1340 static struct areltdata
*
1341 bfd_ar_hdr_from_filesystem (abfd
, filename
)
1343 const char *filename
;
1346 struct areltdata
*ared
;
1350 if (stat (filename
, &status
) != 0)
1352 bfd_set_error (bfd_error_system_call
);
1356 ared
= (struct areltdata
*) bfd_zalloc (abfd
, sizeof (struct ar_hdr
) +
1357 sizeof (struct areltdata
));
1360 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1362 /* ar headers are space padded, not null padded! */
1363 memset ((PTR
) hdr
, ' ', sizeof (struct ar_hdr
));
1365 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1367 /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
1368 sprintf ((hdr
->ar_date
), "%-12ld", (long) status
.st_mtime
);
1369 sprintf ((hdr
->ar_uid
), "%ld", (long) status
.st_uid
);
1370 sprintf ((hdr
->ar_gid
), "%ld", (long) status
.st_gid
);
1371 sprintf ((hdr
->ar_mode
), "%-8o", (unsigned int) status
.st_mode
);
1372 sprintf ((hdr
->ar_size
), "%-10ld", (long) status
.st_size
);
1373 /* Correct for a lossage in sprintf whereby it null-terminates. I cannot
1374 understand how these C losers could design such a ramshackle bunch of
1376 temp
= (char *) hdr
;
1377 temp1
= temp
+ sizeof (struct ar_hdr
) - 2;
1378 for (; temp
< temp1
; temp
++)
1383 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1384 ared
->parsed_size
= status
.st_size
;
1385 ared
->arch_header
= (char *) hdr
;
1390 /* This is magic required by the "ar" program. Since it's
1391 undocumented, it's undocumented. You may think that it would take
1392 a strong stomach to write this, and it does, but it takes even a
1393 stronger stomach to try to code around such a thing! */
1396 bfd_special_undocumented_glue (abfd
, filename
)
1400 struct areltdata
*ar_elt
= bfd_ar_hdr_from_filesystem (abfd
, filename
);
1403 return (struct ar_hdr
*) ar_elt
->arch_header
;
1407 /* Analogous to stat call */
1409 bfd_generic_stat_arch_elt (abfd
, buf
)
1416 if (abfd
->arelt_data
== NULL
)
1418 bfd_set_error (bfd_error_invalid_operation
);
1422 hdr
= arch_hdr (abfd
);
1424 #define foo(arelt, stelt, size) \
1425 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1426 if (aloser == hdr->arelt) return -1;
1428 foo (ar_date
, st_mtime
, 10);
1429 foo (ar_uid
, st_uid
, 10);
1430 foo (ar_gid
, st_gid
, 10);
1431 foo (ar_mode
, st_mode
, 8);
1433 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1439 bfd_dont_truncate_arname (abfd
, pathname
, arhdr
)
1441 CONST
char *pathname
;
1444 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1445 Fortunately ic960 users will never use that option. Fixing this
1446 is very hard; fortunately I know how to do it and will do so once
1447 intel's release is out the door. */
1449 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1451 const char *filename
;
1452 size_t maxlen
= ar_maxnamelen (abfd
);
1454 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1456 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
1460 filename
= normalize (abfd
, pathname
);
1461 if (filename
== NULL
)
1467 length
= strlen (filename
);
1469 if (length
<= maxlen
)
1470 memcpy (hdr
->ar_name
, filename
, length
);
1472 /* Add the padding character if there is room for it. */
1474 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
1475 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1479 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
)
1481 CONST
char *pathname
;
1484 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1486 CONST
char *filename
= strrchr (pathname
, '/');
1487 int maxlen
= ar_maxnamelen (abfd
);
1489 if (filename
== NULL
)
1490 filename
= pathname
;
1494 length
= strlen (filename
);
1496 if (length
<= maxlen
)
1497 memcpy (hdr
->ar_name
, filename
, length
);
1500 /* pathname: meet procrustes */
1501 memcpy (hdr
->ar_name
, filename
, maxlen
);
1505 if (length
< maxlen
)
1506 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1509 /* Store name into ar header. Truncates the name to fit.
1510 1> strip pathname to be just the basename.
1511 2> if it's short enuf to fit, stuff it in.
1512 3> If it doesn't end with .o, truncate it to fit
1513 4> truncate it before the .o, append .o, stuff THAT in. */
1515 /* This is what gnu ar does. It's better but incompatible with the
1519 bfd_gnu_truncate_arname (abfd
, pathname
, arhdr
)
1521 CONST
char *pathname
;
1524 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1526 CONST
char *filename
= strrchr (pathname
, '/');
1527 int maxlen
= ar_maxnamelen (abfd
);
1529 if (filename
== NULL
)
1530 filename
= pathname
;
1534 length
= strlen (filename
);
1536 if (length
<= maxlen
)
1537 memcpy (hdr
->ar_name
, filename
, length
);
1539 { /* pathname: meet procrustes */
1540 memcpy (hdr
->ar_name
, filename
, maxlen
);
1541 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
1543 hdr
->ar_name
[maxlen
- 2] = '.';
1544 hdr
->ar_name
[maxlen
- 1] = 'o';
1550 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1553 /* The BFD is open for write and has its format set to bfd_archive */
1556 _bfd_write_archive_contents (arch
)
1560 char *etable
= NULL
;
1561 bfd_size_type elength
= 0;
1562 const char *ename
= NULL
;
1563 boolean makemap
= bfd_has_map (arch
);
1564 boolean hasobjects
= false; /* if no .o's, don't bother to make a map */
1565 bfd_size_type wrote
;
1569 /* Verify the viability of all entries; if any of them live in the
1570 filesystem (as opposed to living in an archive open for input)
1571 then construct a fresh ar_hdr for them. */
1572 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1574 if (bfd_write_p (current
))
1576 bfd_set_error (bfd_error_invalid_operation
);
1579 if (!current
->arelt_data
)
1581 current
->arelt_data
=
1582 (PTR
) bfd_ar_hdr_from_filesystem (arch
, current
->filename
);
1583 if (!current
->arelt_data
)
1586 /* Put in the file name */
1587 BFD_SEND (arch
, _bfd_truncate_arname
, (arch
,
1589 (char *) arch_hdr (current
)));
1592 if (makemap
&& ! hasobjects
)
1593 { /* don't bother if we won't make a map! */
1594 if ((bfd_check_format (current
, bfd_object
))
1595 #if 0 /* FIXME -- these are not set correctly */
1596 && ((bfd_get_file_flags (current
) & HAS_SYMS
))
1603 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
1604 (arch
, &etable
, &elength
, &ename
)))
1607 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
1610 wrote
= bfd_write (BFD_GNU960_ARMAG (arch
), 1, SARMAG
, arch
);
1612 wrote
= bfd_write (ARMAG
, 1, SARMAG
, arch
);
1614 if (wrote
!= SARMAG
)
1617 if (makemap
&& hasobjects
)
1619 if (_bfd_compute_and_write_armap (arch
, elength
) != true)
1627 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1628 strcpy (hdr
.ar_name
, ename
);
1629 /* Round size up to even number in archive header. */
1630 sprintf (&(hdr
.ar_size
[0]), "%-10d",
1631 (int) ((elength
+ 1) & ~1));
1632 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1633 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1634 if (((char *) (&hdr
))[i
] == '\0')
1635 (((char *) (&hdr
))[i
]) = ' ';
1636 if ((bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1637 != sizeof (struct ar_hdr
))
1638 || bfd_write (etable
, 1, elength
, arch
) != elength
)
1640 if ((elength
% 2) == 1)
1642 if (bfd_write ("\012", 1, 1, arch
) != 1)
1647 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1649 char buffer
[DEFAULT_BUFFERSIZE
];
1650 unsigned int remaining
= arelt_size (current
);
1651 struct ar_hdr
*hdr
= arch_hdr (current
);
1653 /* write ar header */
1654 if (bfd_write ((char *) hdr
, 1, sizeof (*hdr
), arch
) != sizeof (*hdr
))
1656 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
1660 unsigned int amt
= DEFAULT_BUFFERSIZE
;
1661 if (amt
> remaining
)
1664 if (bfd_read (buffer
, amt
, 1, current
) != amt
)
1666 if (bfd_get_error () != bfd_error_system_call
)
1667 bfd_set_error (bfd_error_malformed_archive
);
1670 if (bfd_write (buffer
, amt
, 1, arch
) != amt
)
1674 if ((arelt_size (current
) % 2) == 1)
1676 if (bfd_write ("\012", 1, 1, arch
) != 1)
1681 if (makemap
&& hasobjects
)
1683 /* Verify the timestamp in the archive file. If it would not be
1684 accepted by the linker, rewrite it until it would be. If
1685 anything odd happens, break out and just return. (The
1686 Berkeley linker checks the timestamp and refuses to read the
1687 table-of-contents if it is >60 seconds less than the file's
1688 modified-time. That painful hack requires this painful hack. */
1692 if (bfd_update_armap_timestamp (arch
))
1694 (*_bfd_error_handler
)
1695 ("Warning: writing archive was slow: rewriting timestamp\n");
1697 while (++tries
< 6);
1703 /* Note that the namidx for the first symbol is 0 */
1706 _bfd_compute_and_write_armap (arch
, elength
)
1708 unsigned int elength
;
1710 char *first_name
= NULL
;
1712 file_ptr elt_no
= 0;
1713 struct orl
*map
= NULL
;
1714 int orl_max
= 1024; /* fine initial default */
1716 int stridx
= 0; /* string index */
1717 asymbol
**syms
= NULL
;
1721 /* Dunno if this is the best place for this info... */
1723 elength
+= sizeof (struct ar_hdr
);
1724 elength
+= elength
% 2;
1726 map
= (struct orl
*) bfd_malloc (orl_max
* sizeof (struct orl
));
1730 /* We put the symbol names on the arch obstack, and then discard
1732 first_name
= bfd_alloc (arch
, 1);
1733 if (first_name
== NULL
)
1736 /* Drop all the files called __.SYMDEF, we're going to make our
1738 while (arch
->archive_head
&&
1739 strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
1740 arch
->archive_head
= arch
->archive_head
->next
;
1742 /* Map over each element */
1743 for (current
= arch
->archive_head
;
1744 current
!= (bfd
*) NULL
;
1745 current
= current
->next
, elt_no
++)
1747 if ((bfd_check_format (current
, bfd_object
) == true)
1748 && ((bfd_get_file_flags (current
) & HAS_SYMS
)))
1754 storage
= bfd_get_symtab_upper_bound (current
);
1760 if (storage
> syms_max
)
1765 syms
= (asymbol
**) bfd_malloc ((size_t) syms_max
);
1769 symcount
= bfd_canonicalize_symtab (current
, syms
);
1773 /* Now map over all the symbols, picking out the ones we want */
1774 for (src_count
= 0; src_count
< symcount
; src_count
++)
1776 flagword flags
= (syms
[src_count
])->flags
;
1777 asection
*sec
= syms
[src_count
]->section
;
1779 if ((flags
& BSF_GLOBAL
||
1781 flags
& BSF_INDIRECT
||
1782 bfd_is_com_section (sec
))
1783 && ! bfd_is_und_section (sec
))
1786 struct orl
*new_map
;
1788 /* This symbol will go into the archive header */
1789 if (orl_count
== orl_max
)
1794 bfd_realloc (map
, orl_max
* sizeof (struct orl
)));
1795 if (new_map
== (struct orl
*) NULL
)
1801 namelen
= strlen (syms
[src_count
]->name
);
1802 map
[orl_count
].name
= ((char **)
1805 if (map
[orl_count
].name
== NULL
)
1807 *(map
[orl_count
].name
) = bfd_alloc (arch
, namelen
+ 1);
1808 if (*(map
[orl_count
].name
) == NULL
)
1810 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
1811 (map
[orl_count
]).pos
= (file_ptr
) current
;
1812 (map
[orl_count
]).namidx
= stridx
;
1814 stridx
+= namelen
+ 1;
1820 /* Now ask the BFD to free up any cached information, so we
1821 don't fill all of memory with symbol tables. */
1822 if (! bfd_free_cached_info (current
))
1827 /* OK, now we have collected all the data, let's write them out */
1828 ret
= BFD_SEND (arch
, write_armap
,
1829 (arch
, elength
, map
, orl_count
, stridx
));
1835 if (first_name
!= NULL
)
1836 bfd_release (arch
, first_name
);
1845 if (first_name
!= NULL
)
1846 bfd_release (arch
, first_name
);
1852 bsd_write_armap (arch
, elength
, map
, orl_count
, stridx
)
1854 unsigned int elength
;
1856 unsigned int orl_count
;
1859 int padit
= stridx
& 1;
1860 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
1861 unsigned int stringsize
= stridx
+ padit
;
1862 /* Include 8 bytes to store ranlibsize and stringsize in output. */
1863 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
1865 bfd
*current
= arch
->archive_head
;
1866 bfd
*last_elt
= current
; /* last element arch seen */
1870 struct stat statbuf
;
1873 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
1875 stat (arch
->filename
, &statbuf
);
1876 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1877 sprintf (hdr
.ar_name
, RANLIBMAG
);
1878 /* Remember the timestamp, to keep it holy. But fudge it a little. */
1879 bfd_ardata (arch
)->armap_timestamp
= statbuf
.st_mtime
+ ARMAP_TIME_OFFSET
;
1880 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1881 + offsetof (struct ar_hdr
, ar_date
[0]));
1882 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1883 sprintf (hdr
.ar_uid
, "%ld", (long) getuid ());
1884 sprintf (hdr
.ar_gid
, "%ld", (long) getgid ());
1885 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
1886 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1887 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1888 if (((char *) (&hdr
))[i
] == '\0')
1889 (((char *) (&hdr
))[i
]) = ' ';
1890 if (bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1891 != sizeof (struct ar_hdr
))
1893 bfd_h_put_32 (arch
, (bfd_vma
) ranlibsize
, temp
);
1894 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1897 for (count
= 0; count
< orl_count
; count
++)
1899 bfd_byte buf
[BSD_SYMDEF_SIZE
];
1901 if (((bfd
*) (map
[count
]).pos
) != last_elt
)
1905 firstreal
+= arelt_size (current
) + sizeof (struct ar_hdr
);
1906 firstreal
+= firstreal
% 2;
1907 current
= current
->next
;
1909 while (current
!= (bfd
*) (map
[count
]).pos
);
1910 } /* if new archive element */
1913 bfd_h_put_32 (arch
, map
[count
].namidx
, buf
);
1914 bfd_h_put_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
1915 if (bfd_write (buf
, BSD_SYMDEF_SIZE
, 1, arch
) != BSD_SYMDEF_SIZE
)
1919 /* now write the strings themselves */
1920 bfd_h_put_32 (arch
, stringsize
, temp
);
1921 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1923 for (count
= 0; count
< orl_count
; count
++)
1925 size_t len
= strlen (*map
[count
].name
) + 1;
1927 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
1931 /* The spec sez this should be a newline. But in order to be
1932 bug-compatible for sun's ar we use a null. */
1935 if (bfd_write ("", 1, 1, arch
) != 1)
1942 /* At the end of archive file handling, update the timestamp in the
1943 file, so the linker will accept it.
1945 Return true if the timestamp was OK, or an unusual problem happened.
1946 Return false if we updated the timestamp. */
1949 _bfd_archive_bsd_update_armap_timestamp (arch
)
1952 struct stat archstat
;
1956 /* Flush writes, get last-write timestamp from file, and compare it
1957 to the timestamp IN the file. */
1959 if (bfd_stat (arch
, &archstat
) == -1)
1961 perror ("Reading archive file mod timestamp");
1962 return true; /* Can't read mod time for some reason */
1964 if (archstat
.st_mtime
<= bfd_ardata (arch
)->armap_timestamp
)
1965 return true; /* OK by the linker's rules */
1967 /* Update the timestamp. */
1968 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
1970 /* Prepare an ASCII version suitable for writing. */
1971 memset (hdr
.ar_date
, 0, sizeof (hdr
.ar_date
));
1972 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1973 for (i
= 0; i
< sizeof (hdr
.ar_date
); i
++)
1974 if (hdr
.ar_date
[i
] == '\0')
1975 (hdr
.ar_date
)[i
] = ' ';
1977 /* Write it into the file. */
1978 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1979 + offsetof (struct ar_hdr
, ar_date
[0]));
1980 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
1981 || (bfd_write (hdr
.ar_date
, sizeof (hdr
.ar_date
), 1, arch
)
1982 != sizeof (hdr
.ar_date
)))
1984 /* FIXME: bfd can't call perror. */
1985 perror ("Writing updated armap timestamp");
1986 return true; /* Some error while writing */
1989 return false; /* We updated the timestamp successfully. */
1992 /* A coff armap looks like :
1994 struct ar_hdr with name = '/'
1996 offset of file for symbol 0
1997 offset of file for symbol 1
1999 offset of file for symbol n-1
2007 coff_write_armap (arch
, elength
, map
, symbol_count
, stridx
)
2009 unsigned int elength
;
2011 unsigned int symbol_count
;
2014 /* The size of the ranlib is the number of exported symbols in the
2015 archive * the number of bytes in a int, + an int for the count */
2016 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2017 unsigned int stringsize
= stridx
;
2018 unsigned int mapsize
= stringsize
+ ranlibsize
;
2019 file_ptr archive_member_file_ptr
;
2020 bfd
*current
= arch
->archive_head
;
2024 int padit
= mapsize
& 1;
2029 /* work out where the first object file will go in the archive */
2030 archive_member_file_ptr
= (mapsize
2032 + sizeof (struct ar_hdr
)
2035 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
2036 hdr
.ar_name
[0] = '/';
2037 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
2038 sprintf (hdr
.ar_date
, "%ld", (long) time (NULL
));
2039 /* This, at least, is what Intel coff sets the values to.: */
2040 sprintf ((hdr
.ar_uid
), "%d", 0);
2041 sprintf ((hdr
.ar_gid
), "%d", 0);
2042 sprintf ((hdr
.ar_mode
), "%-7o", (unsigned) 0);
2043 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
2045 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
2046 if (((char *) (&hdr
))[i
] == '\0')
2047 (((char *) (&hdr
))[i
]) = ' ';
2049 /* Write the ar header for this item and the number of symbols */
2051 if (bfd_write ((PTR
) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
2052 != sizeof (struct ar_hdr
))
2055 bfd_write_bigendian_4byte_int (arch
, symbol_count
);
2057 /* Two passes, first write the file offsets for each symbol -
2058 remembering that each offset is on a two byte boundary. */
2060 /* Write out the file offset for the file associated with each
2061 symbol, and remember to keep the offsets padded out. */
2063 current
= arch
->archive_head
;
2065 while (current
!= (bfd
*) NULL
&& count
< symbol_count
)
2067 /* For each symbol which is used defined in this object, write out
2068 the object file's address in the archive */
2070 while (((bfd
*) (map
[count
]).pos
) == current
)
2072 bfd_write_bigendian_4byte_int (arch
, archive_member_file_ptr
);
2075 /* Add size of this archive entry */
2076 archive_member_file_ptr
+= (arelt_size (current
)
2077 + sizeof (struct ar_hdr
));
2078 /* remember aboout the even alignment */
2079 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2080 current
= current
->next
;
2083 /* now write the strings themselves */
2084 for (count
= 0; count
< symbol_count
; count
++)
2086 size_t len
= strlen (*map
[count
].name
) + 1;
2088 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
2092 /* The spec sez this should be a newline. But in order to be
2093 bug-compatible for arc960 we use a null. */
2096 if (bfd_write ("", 1, 1, arch
) != 1)