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
)
191 bfd_set_error (bfd_error_no_memory
);
195 bfd_ardata (abfd
)->cache
= NULL
;
196 bfd_ardata (abfd
)->archive_head
= NULL
;
197 bfd_ardata (abfd
)->symdefs
= NULL
;
198 bfd_ardata (abfd
)->extended_names
= NULL
;
199 bfd_ardata (abfd
)->tdata
= NULL
;
209 symindex bfd_get_next_mapent(bfd *abfd, symindex previous, carsym **sym);
212 Step through archive @var{abfd}'s symbol table (if it
213 has one). Successively update @var{sym} with the next symbol's
214 information, returning that symbol's (internal) index into the
217 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
218 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
221 A <<carsym>> is a canonical archive symbol. The only
222 user-visible element is its name, a null-terminated string.
226 bfd_get_next_mapent (abfd
, prev
, entry
)
231 if (!bfd_has_map (abfd
))
233 bfd_set_error (bfd_error_invalid_operation
);
234 return BFD_NO_MORE_SYMBOLS
;
237 if (prev
== BFD_NO_MORE_SYMBOLS
)
241 if (prev
>= bfd_ardata (abfd
)->symdef_count
)
242 return BFD_NO_MORE_SYMBOLS
;
244 *entry
= (bfd_ardata (abfd
)->symdefs
+ prev
);
248 /* To be called by backends only */
251 _bfd_create_empty_archive_element_shell (obfd
)
256 nbfd
= _bfd_new_bfd_contained_in (obfd
);
259 bfd_set_error (bfd_error_no_memory
);
270 boolean bfd_set_archive_head(bfd *output, bfd *new_head);
273 Set the head of the chain of
274 BFDs contained in the archive @var{output} to @var{new_head}.
278 bfd_set_archive_head (output_archive
, new_head
)
283 output_archive
->archive_head
= new_head
;
288 _bfd_look_for_bfd_in_cache (arch_bfd
, filepos
)
292 struct ar_cache
*current
;
294 for (current
= bfd_ardata (arch_bfd
)->cache
; current
!= NULL
;
295 current
= current
->next
)
296 if (current
->ptr
== filepos
)
297 return current
->arelt
;
302 /* Kind of stupid to call cons for each one, but we don't do too many */
304 _bfd_add_bfd_to_archive_cache (arch_bfd
, filepos
, new_elt
)
305 bfd
*arch_bfd
, *new_elt
;
308 struct ar_cache
*new_cache
= ((struct ar_cache
*)
309 bfd_zalloc (arch_bfd
,
310 sizeof (struct ar_cache
)));
312 if (new_cache
== NULL
)
314 bfd_set_error (bfd_error_no_memory
);
318 new_cache
->ptr
= filepos
;
319 new_cache
->arelt
= new_elt
;
320 new_cache
->next
= (struct ar_cache
*) NULL
;
321 if (bfd_ardata (arch_bfd
)->cache
== NULL
)
322 bfd_ardata (arch_bfd
)->cache
= new_cache
;
325 struct ar_cache
*current
= bfd_ardata (arch_bfd
)->cache
;
327 while (current
->next
!= NULL
)
328 current
= current
->next
;
329 current
->next
= new_cache
;
335 /* The name begins with space. Hence the rest of the name is an index into
339 get_extended_arelt_filename (arch
, name
)
343 unsigned long index
= 0;
345 /* Should extract string so that I can guarantee not to overflow into
346 the next region, but I'm too lazy. */
348 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
349 index
= strtol (name
+ 1, NULL
, 10);
352 bfd_set_error (bfd_error_malformed_archive
);
356 return bfd_ardata (arch
)->extended_names
+ index
;
359 /* This functions reads an arch header and returns an areltdata pointer, or
362 Presumes the file pointer is already in the right place (ie pointing
363 to the ar_hdr in the file). Moves the file pointer; on success it
364 should be pointing to the front of the file contents; on failure it
365 could have been moved arbitrarily.
369 _bfd_generic_read_ar_hdr (abfd
)
377 char *hdrp
= (char *) &hdr
;
378 unsigned int parsed_size
;
379 struct areltdata
*ared
;
380 char *filename
= NULL
;
381 unsigned int namelen
= 0;
382 unsigned int allocsize
= sizeof (struct areltdata
) + sizeof (struct ar_hdr
);
385 if (bfd_read ((PTR
) hdrp
, 1, sizeof (struct ar_hdr
), abfd
)
386 != sizeof (struct ar_hdr
))
388 if (bfd_get_error () != bfd_error_system_call
)
389 bfd_set_error (bfd_error_no_more_archived_files
);
392 if (strncmp (hdr
.ar_fmag
, ARFMAG
, 2))
394 bfd_set_error (bfd_error_malformed_archive
);
399 parsed_size
= strtol (hdr
.ar_size
, NULL
, 10);
402 bfd_set_error (bfd_error_malformed_archive
);
406 /* Extract the filename from the archive - there are two ways to
407 specify an extendend name table, either the first char of the
408 name is a space, or it's a slash. */
409 if ((hdr
.ar_name
[0] == '/'
410 || (hdr
.ar_name
[0] == ' '
411 && memchr (hdr
.ar_name
, '/', ar_maxnamelen (abfd
)) == NULL
))
412 && bfd_ardata (abfd
)->extended_names
!= NULL
)
414 filename
= get_extended_arelt_filename (abfd
, hdr
.ar_name
);
415 if (filename
== NULL
)
417 bfd_set_error (bfd_error_malformed_archive
);
421 /* BSD4.4-style long filename.
422 Only implemented for reading, so far! */
423 else if (hdr
.ar_name
[0] == '#' && hdr
.ar_name
[1] == '1'
424 && hdr
.ar_name
[2] == '/' && isdigit (hdr
.ar_name
[3]))
426 /* BSD-4.4 extended name */
427 namelen
= atoi (&hdr
.ar_name
[3]);
428 allocsize
+= namelen
+ 1;
429 parsed_size
-= namelen
;
431 allocptr
= bfd_zalloc (abfd
, allocsize
);
432 if (allocptr
== NULL
)
434 bfd_set_error (bfd_error_no_memory
);
438 + sizeof (struct areltdata
)
439 + sizeof (struct ar_hdr
));
440 if (bfd_read (filename
, 1, namelen
, abfd
) != namelen
)
442 if (bfd_get_error () != bfd_error_system_call
)
443 bfd_set_error (bfd_error_no_more_archived_files
);
446 filename
[namelen
] = '\0';
450 /* We judge the end of the name by looking for '/' or ' '.
451 Note: The SYSV format (terminated by '/') allows embedded
452 spaces, so only look for ' ' if we don't find '/'. */
455 while (hdr
.ar_name
[namelen
] != '\0' &&
456 hdr
.ar_name
[namelen
] != '/')
459 if (namelen
== (unsigned) ar_maxnamelen (abfd
))
462 while (hdr
.ar_name
[namelen
] != ' '
463 && namelen
< (unsigned) ar_maxnamelen (abfd
))
469 allocsize
+= namelen
+ 1;
474 allocptr
= bfd_zalloc (abfd
, allocsize
);
475 if (allocptr
== NULL
)
477 bfd_set_error (bfd_error_no_memory
);
482 ared
= (struct areltdata
*) allocptr
;
484 ared
->arch_header
= allocptr
+ sizeof (struct areltdata
);
485 memcpy ((char *) ared
->arch_header
, (char *) &hdr
, sizeof (struct ar_hdr
));
486 ared
->parsed_size
= parsed_size
;
488 if (filename
!= NULL
)
489 ared
->filename
= filename
;
492 ared
->filename
= allocptr
+ (sizeof (struct areltdata
) +
493 sizeof (struct ar_hdr
));
495 memcpy (ared
->filename
, hdr
.ar_name
, namelen
);
496 ared
->filename
[namelen
] = '\0';
502 /* This is an internal function; it's mainly used when indexing
503 through the archive symbol table, but also used to get the next
504 element, since it handles the bookkeeping so nicely for us. */
507 _bfd_get_elt_at_filepos (archive
, filepos
)
511 struct areltdata
*new_areldata
;
514 n_nfd
= _bfd_look_for_bfd_in_cache (archive
, filepos
);
518 if (0 > bfd_seek (archive
, filepos
, SEEK_SET
))
521 if ((new_areldata
= (struct areltdata
*) _bfd_read_ar_hdr (archive
)) == NULL
)
524 n_nfd
= _bfd_create_empty_archive_element_shell (archive
);
527 bfd_release (archive
, (PTR
) new_areldata
);
531 n_nfd
->origin
= bfd_tell (archive
);
532 n_nfd
->arelt_data
= (PTR
) new_areldata
;
533 n_nfd
->filename
= new_areldata
->filename
;
535 if (_bfd_add_bfd_to_archive_cache (archive
, filepos
, n_nfd
))
539 bfd_release (archive
, (PTR
) n_nfd
);
540 bfd_release (archive
, (PTR
) new_areldata
);
549 bfd *bfd_get_elt_at_index(bfd *archive, int index);
552 Return the BFD which is referenced by the symbol in @var{archive}
553 indexed by @var{index}. @var{index} should have been returned by
554 <<bfd_get_next_mapent>> (q.v.).
558 bfd_get_elt_at_index (abfd
, index
)
564 entry
= bfd_ardata (abfd
)->symdefs
+ index
;
565 return _bfd_get_elt_at_filepos (abfd
, entry
->file_offset
);
570 bfd_openr_next_archived_file
573 bfd *bfd_openr_next_archived_file(bfd *archive, bfd *previous);
576 Provided a BFD, @var{archive}, containing an archive and NULL, open
577 an input BFD on the first contained element and returns that.
578 Subsequent calls should pass
579 the archive and the previous return value to return a created
580 BFD to the next contained element. NULL is returned when there
586 bfd_openr_next_archived_file (archive
, last_file
)
590 if ((bfd_get_format (archive
) != bfd_archive
) ||
591 (archive
->direction
== write_direction
))
593 bfd_set_error (bfd_error_invalid_operation
);
597 return BFD_SEND (archive
,
598 openr_next_archived_file
,
604 bfd_generic_openr_next_archived_file (archive
, last_file
)
611 filestart
= bfd_ardata (archive
)->first_file_filepos
;
614 unsigned int size
= arelt_size (last_file
);
615 /* Pad to an even boundary...
616 Note that last_file->origin can be odd in the case of
617 BSD-4.4-style element with a long odd size. */
618 filestart
= last_file
->origin
+ size
;
619 filestart
+= filestart
% 2;
622 return _bfd_get_elt_at_filepos (archive
, filestart
);
627 bfd_generic_archive_p (abfd
)
630 char armag
[SARMAG
+ 1];
632 if (bfd_read ((PTR
) armag
, 1, SARMAG
, abfd
) != SARMAG
)
634 if (bfd_get_error () != bfd_error_system_call
)
635 bfd_set_error (bfd_error_wrong_format
);
640 if (strncmp (armag
, BFD_GNU960_ARMAG (abfd
), SARMAG
) != 0)
643 if (strncmp (armag
, ARMAG
, SARMAG
) != 0 &&
644 strncmp (armag
, ARMAGB
, SARMAG
) != 0)
648 /* We are setting bfd_ardata(abfd) here, but since bfd_ardata
649 involves a cast, we can't do it as the left operand of assignment. */
650 abfd
->tdata
.aout_ar_data
= ((struct artdata
*)
651 bfd_zalloc (abfd
, sizeof (struct artdata
)));
653 if (bfd_ardata (abfd
) == NULL
)
655 bfd_set_error (bfd_error_no_memory
);
659 bfd_ardata (abfd
)->first_file_filepos
= SARMAG
;
660 bfd_ardata (abfd
)->cache
= NULL
;
661 bfd_ardata (abfd
)->archive_head
= NULL
;
662 bfd_ardata (abfd
)->symdefs
= NULL
;
663 bfd_ardata (abfd
)->extended_names
= NULL
;
664 bfd_ardata (abfd
)->tdata
= NULL
;
666 if (!BFD_SEND (abfd
, _bfd_slurp_armap
, (abfd
)))
668 bfd_release (abfd
, bfd_ardata (abfd
));
669 abfd
->tdata
.aout_ar_data
= NULL
;
673 if (!BFD_SEND (abfd
, _bfd_slurp_extended_name_table
, (abfd
)))
675 bfd_release (abfd
, bfd_ardata (abfd
));
676 abfd
->tdata
.aout_ar_data
= NULL
;
680 if (bfd_has_map (abfd
))
684 /* This archive has a map, so we may presume that the contents
685 are object files. Make sure that the first file in the
686 archive can be recognized as an object file for this target.
687 If not, assume that this is the wrong format.
689 This is done because any normal format will recognize any
690 normal archive, regardless of the format of the object files.
691 We do accept an empty archive. */
693 first
= bfd_openr_next_archived_file (abfd
, (bfd
*) NULL
);
698 first
->target_defaulted
= false;
700 if (! bfd_check_format (first
, bfd_object
))
702 else if (first
->xvec
!= abfd
->xvec
)
704 bfd_set_error (bfd_error_wrong_format
);
711 err
= bfd_get_error ();
712 (void) bfd_close (first
);
713 bfd_release (abfd
, bfd_ardata (abfd
));
714 abfd
->tdata
.aout_ar_data
= NULL
;
719 /* We ought to close first here, but we can't, because we
720 have no way to remove it from the archive cache. FIXME. */
727 /* Some constants for a 32 bit BSD archive structure. We do not
728 support 64 bit archives presently; so far as I know, none actually
729 exist. Supporting them would require changing these constants, and
730 changing some bfd_h_get_32 to bfd_h_get_64. */
732 /* The size of an external symdef structure. */
733 #define BSD_SYMDEF_SIZE 8
735 /* The offset from the start of a symdef structure to the file offset. */
736 #define BSD_SYMDEF_OFFSET_SIZE 4
738 /* The size of the symdef count. */
739 #define BSD_SYMDEF_COUNT_SIZE 4
741 /* The size of the string count. */
742 #define BSD_STRING_COUNT_SIZE 4
744 /* Returns false on error, true otherwise */
747 do_slurp_bsd_armap (abfd
)
750 struct areltdata
*mapdata
;
751 unsigned int counter
;
752 bfd_byte
*raw_armap
, *rbase
;
753 struct artdata
*ardata
= bfd_ardata (abfd
);
755 unsigned int parsed_size
;
758 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
761 parsed_size
= mapdata
->parsed_size
;
762 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
764 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
765 if (raw_armap
== (bfd_byte
*) NULL
)
767 bfd_set_error (bfd_error_no_memory
);
771 if (bfd_read ((PTR
) raw_armap
, 1, parsed_size
, abfd
) != parsed_size
)
773 if (bfd_get_error () != bfd_error_system_call
)
774 bfd_set_error (bfd_error_malformed_archive
);
776 bfd_release (abfd
, (PTR
) raw_armap
);
780 ardata
->symdef_count
= bfd_h_get_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
782 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
783 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
785 /* Probably we're using the wrong byte ordering. */
786 bfd_set_error (bfd_error_wrong_format
);
791 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
792 stringbase
= ((char *) rbase
793 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
794 + BSD_STRING_COUNT_SIZE
);
795 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
796 (ardata
->symdef_count
798 if (!ardata
->symdefs
)
800 bfd_set_error (bfd_error_no_memory
);
804 for (counter
= 0, set
= ardata
->symdefs
;
805 counter
< ardata
->symdef_count
;
806 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
808 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
809 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
812 ardata
->first_file_filepos
= bfd_tell (abfd
);
813 /* Pad to an even boundary if you have to */
814 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
815 /* FIXME, we should provide some way to free raw_ardata when
816 we are done using the strings from it. For now, it seems
817 to be allocated on an obstack anyway... */
818 bfd_has_map (abfd
) = true;
822 /* Returns false on error, true otherwise */
824 do_slurp_coff_armap (abfd
)
827 struct areltdata
*mapdata
;
828 int *raw_armap
, *rawptr
;
829 struct artdata
*ardata
= bfd_ardata (abfd
);
831 unsigned int stringsize
;
832 unsigned int parsed_size
;
834 unsigned int nsymz
; /* Number of symbols in armap. */
835 bfd_vma (*swap
) PARAMS ((const bfd_byte
*));
836 char int_buf
[sizeof (long)];
837 unsigned int carsym_size
, ptrsize
, i
;
839 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
842 parsed_size
= mapdata
->parsed_size
;
843 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
845 if (bfd_read ((PTR
) int_buf
, 1, 4, abfd
) != 4)
847 if (bfd_get_error () != bfd_error_system_call
)
848 bfd_set_error (bfd_error_malformed_archive
);
851 /* It seems that all numeric information in a coff archive is always
852 in big endian format, nomatter the host or target. */
854 nsymz
= bfd_getb32 ((PTR
) int_buf
);
855 stringsize
= parsed_size
- (4 * nsymz
) - 4;
858 /* ... except that some archive formats are broken, and it may be our
859 fault - the i960 little endian coff sometimes has big and sometimes
860 little, because our tools changed. Here's a horrible hack to clean
863 if (stringsize
> 0xfffff)
865 /* This looks dangerous, let's do it the other way around */
866 nsymz
= bfd_getl32 ((PTR
) int_buf
);
867 stringsize
= parsed_size
- (4 * nsymz
) - 4;
872 /* The coff armap must be read sequentially. So we construct a
873 bsd-style one in core all at once, for simplicity. */
875 carsym_size
= (nsymz
* sizeof (carsym
));
876 ptrsize
= (4 * nsymz
);
878 ardata
->symdefs
= (carsym
*) bfd_zalloc (abfd
, carsym_size
+ stringsize
+ 1);
879 if (ardata
->symdefs
== NULL
)
881 bfd_set_error (bfd_error_no_memory
);
884 carsyms
= ardata
->symdefs
;
885 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
887 /* Allocate and read in the raw offsets. */
888 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
889 if (raw_armap
== NULL
)
891 bfd_set_error (bfd_error_no_memory
);
892 goto release_symdefs
;
894 if (bfd_read ((PTR
) raw_armap
, 1, ptrsize
, abfd
) != ptrsize
895 || bfd_read ((PTR
) stringbase
, 1, stringsize
, abfd
) != stringsize
)
897 if (bfd_get_error () != bfd_error_system_call
)
898 bfd_set_error (bfd_error_malformed_archive
);
899 goto release_raw_armap
;
902 /* OK, build the carsyms */
903 for (i
= 0; i
< nsymz
; i
++)
905 rawptr
= raw_armap
+ i
;
906 carsyms
->file_offset
= swap ((PTR
) rawptr
);
907 carsyms
->name
= stringbase
;
908 stringbase
+= strlen (stringbase
) + 1;
913 ardata
->symdef_count
= nsymz
;
914 ardata
->first_file_filepos
= bfd_tell (abfd
);
915 /* Pad to an even boundary if you have to */
916 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
919 bfd_has_map (abfd
) = true;
920 bfd_release (abfd
, (PTR
) raw_armap
);
923 /* Check for a second archive header (as used by PE) */
925 struct areltdata
*tmp
;
927 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
928 tmp
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
931 if (tmp
->arch_header
[0] == '/'
932 && tmp
->arch_header
[1] == ' ')
934 ardata
->first_file_filepos
+=
935 (tmp
->parsed_size
+ sizeof(struct ar_hdr
) + 1) & ~1;
937 bfd_release (abfd
, tmp
);
944 bfd_release (abfd
, (PTR
) raw_armap
);
946 bfd_release (abfd
, (PTR
) (ardata
)->symdefs
);
950 /* This routine can handle either coff-style or bsd-style armaps.
951 Returns false on error, true otherwise */
954 bfd_slurp_armap (abfd
)
958 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
965 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
968 if (!strncmp (nextname
, "__.SYMDEF ", 16)
969 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
970 return do_slurp_bsd_armap (abfd
);
971 else if (!strncmp (nextname
, "/ ", 16))
972 return do_slurp_coff_armap (abfd
);
974 bfd_has_map (abfd
) = false;
978 /* Returns false on error, true otherwise */
979 /* flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
980 header is in a slightly different order and the map name is '/'.
981 This flavour is used by hp300hpux. */
983 #define HPUX_SYMDEF_COUNT_SIZE 2
986 bfd_slurp_bsd_armap_f2 (abfd
)
989 struct areltdata
*mapdata
;
991 unsigned int counter
;
992 bfd_byte
*raw_armap
, *rbase
;
993 struct artdata
*ardata
= bfd_ardata (abfd
);
995 unsigned int stringsize
;
997 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
1004 /* The archive has at least 16 bytes in it */
1005 if (bfd_seek (abfd
, -16L, SEEK_CUR
) != 0)
1008 if (!strncmp (nextname
, "__.SYMDEF ", 16)
1009 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
1010 return do_slurp_bsd_armap (abfd
);
1012 if (strncmp (nextname
, "/ ", 16))
1014 bfd_has_map (abfd
) = false;
1018 mapdata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1019 if (mapdata
== NULL
)
1022 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, mapdata
->parsed_size
);
1023 if (raw_armap
== NULL
)
1025 bfd_set_error (bfd_error_no_memory
);
1027 bfd_release (abfd
, (PTR
) mapdata
);
1031 if (bfd_read ((PTR
) raw_armap
, 1, mapdata
->parsed_size
, abfd
) !=
1032 mapdata
->parsed_size
)
1034 if (bfd_get_error () != bfd_error_system_call
)
1035 bfd_set_error (bfd_error_malformed_archive
);
1037 bfd_release (abfd
, (PTR
) raw_armap
);
1041 ardata
->symdef_count
= bfd_h_get_16 (abfd
, (PTR
) raw_armap
);
1043 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
1044 > mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
)
1046 /* Probably we're using the wrong byte ordering. */
1047 bfd_set_error (bfd_error_wrong_format
);
1053 stringsize
= bfd_h_get_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1054 /* skip sym count and string sz */
1055 stringbase
= ((char *) raw_armap
1056 + HPUX_SYMDEF_COUNT_SIZE
1057 + BSD_STRING_COUNT_SIZE
);
1058 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1059 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
1060 (ardata
->symdef_count
1061 * BSD_SYMDEF_SIZE
));
1062 if (!ardata
->symdefs
)
1064 bfd_set_error (bfd_error_no_memory
);
1068 for (counter
= 0, set
= ardata
->symdefs
;
1069 counter
< ardata
->symdef_count
;
1070 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1072 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
1073 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1076 ardata
->first_file_filepos
= bfd_tell (abfd
);
1077 /* Pad to an even boundary if you have to */
1078 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1079 /* FIXME, we should provide some way to free raw_ardata when
1080 we are done using the strings from it. For now, it seems
1081 to be allocated on an obstack anyway... */
1082 bfd_has_map (abfd
) = true;
1086 /** Extended name table.
1088 Normally archives support only 14-character filenames.
1090 Intel has extended the format: longer names are stored in a special
1091 element (the first in the archive, or second if there is an armap);
1092 the name in the ar_hdr is replaced by <space><index into filename
1093 element>. Index is the P.R. of an int (decimal). Data General have
1094 extended the format by using the prefix // for the special element */
1096 /* Returns false on error, true otherwise */
1098 _bfd_slurp_extended_name_table (abfd
)
1102 struct areltdata
*namedata
;
1104 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1105 we probably don't want to return true. */
1106 bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
);
1107 if (bfd_read ((PTR
) nextname
, 1, 16, abfd
) == 16)
1109 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
1112 if (strncmp (nextname
, "ARFILENAMES/ ", 16) != 0 &&
1113 strncmp (nextname
, "// ", 16) != 0)
1115 bfd_ardata (abfd
)->extended_names
= NULL
;
1119 namedata
= (struct areltdata
*) _bfd_read_ar_hdr (abfd
);
1120 if (namedata
== NULL
)
1123 bfd_ardata (abfd
)->extended_names
=
1124 bfd_zalloc (abfd
, namedata
->parsed_size
);
1125 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1127 bfd_set_error (bfd_error_no_memory
);
1129 bfd_release (abfd
, (PTR
) namedata
);
1133 if (bfd_read ((PTR
) bfd_ardata (abfd
)->extended_names
, 1,
1134 namedata
->parsed_size
, abfd
) != namedata
->parsed_size
)
1136 if (bfd_get_error () != bfd_error_system_call
)
1137 bfd_set_error (bfd_error_malformed_archive
);
1138 bfd_release (abfd
, (PTR
) (bfd_ardata (abfd
)->extended_names
));
1139 bfd_ardata (abfd
)->extended_names
= NULL
;
1143 /* Since the archive is supposed to be printable if it contains
1144 text, the entries in the list are newline-padded, not null
1145 padded. In SVR4-style archives, the names also have a
1146 trailing '/'. DOS/NT created archive often have \ in them
1147 We'll fix all problems here.. */
1149 char *temp
= bfd_ardata (abfd
)->extended_names
;
1150 char *limit
= temp
+ namedata
->parsed_size
;
1151 for (; temp
< limit
; ++temp
) {
1152 if (*temp
== '\012')
1153 temp
[temp
[-1] == '/' ? -1 : 0] = '\0';
1159 /* Pad to an even boundary if you have to */
1160 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1161 bfd_ardata (abfd
)->first_file_filepos
+=
1162 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1164 /* FIXME, we can't release namedata here because it was allocated
1165 below extended_names on the obstack... */
1166 /* bfd_release (abfd, namedata); */
1173 /* Return a copy of the stuff in the filename between any :]> and a
1176 normalize (abfd
, file
)
1184 first
= file
+ strlen (file
) - 1;
1187 while (first
!= file
)
1191 if (*first
== ':' || *first
== ']' || *first
== '>')
1199 copy
= (char *) bfd_alloc (abfd
, last
- first
+ 1);
1202 bfd_set_error (bfd_error_no_memory
);
1206 memcpy (copy
, first
, last
- first
);
1207 copy
[last
- first
] = 0;
1214 normalize (abfd
, file
)
1218 const char *filename
= strrchr (file
, '/');
1220 if (filename
!= (char *) NULL
)
1228 /* Build a BFD style extended name table. */
1231 _bfd_archive_bsd_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1234 bfd_size_type
*tablen
;
1237 *name
= "ARFILENAMES/";
1238 return _bfd_construct_extended_name_table (abfd
, false, tabloc
, tablen
);
1241 /* Build an SVR4 style extended name table. */
1244 _bfd_archive_coff_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1247 bfd_size_type
*tablen
;
1251 return _bfd_construct_extended_name_table (abfd
, true, tabloc
, tablen
);
1254 /* Follows archive_head and produces an extended name table if
1255 necessary. Returns (in tabloc) a pointer to an extended name
1256 table, and in tablen the length of the table. If it makes an entry
1257 it clobbers the filename so that the element may be written without
1258 further massage. Returns true if it ran successfully, false if
1259 something went wrong. A successful return may still involve a
1260 zero-length tablen! */
1263 _bfd_construct_extended_name_table (abfd
, trailing_slash
, tabloc
, tablen
)
1265 boolean trailing_slash
;
1267 bfd_size_type
*tablen
;
1269 unsigned int maxname
= abfd
->xvec
->ar_max_namelen
;
1270 unsigned int total_namelen
= 0;
1276 /* Figure out how long the table should be */
1277 for (current
= abfd
->archive_head
; current
!= NULL
; current
= current
->next
)
1280 unsigned int thislen
;
1282 normal
= normalize (current
, current
->filename
);
1286 thislen
= strlen (normal
);
1288 if (thislen
> maxname
1289 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1292 if (thislen
> maxname
)
1294 /* Add one to leave room for \n. */
1295 total_namelen
+= thislen
+ 1;
1298 /* Leave room for trailing slash. */
1304 struct ar_hdr
*hdr
= arch_hdr (current
);
1305 if (strncmp (normal
, hdr
->ar_name
, thislen
) != 0
1306 || (thislen
< sizeof hdr
->ar_name
1307 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1309 /* Must have been using extended format even though it
1310 didn't need to. Fix it to use normal format. */
1311 memcpy (hdr
->ar_name
, normal
, thislen
);
1312 if (thislen
< maxname
1313 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1314 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1319 if (total_namelen
== 0)
1322 *tabloc
= bfd_zalloc (abfd
, total_namelen
);
1323 if (*tabloc
== NULL
)
1325 bfd_set_error (bfd_error_no_memory
);
1329 *tablen
= total_namelen
;
1332 for (current
= abfd
->archive_head
; current
!= NULL
; current
=
1336 unsigned int thislen
;
1338 normal
= normalize (current
, current
->filename
);
1342 thislen
= strlen (normal
);
1343 if (thislen
> maxname
)
1345 /* Works for now; may need to be re-engineered if we
1346 encounter an oddball archive format and want to
1347 generalise this hack. */
1348 struct ar_hdr
*hdr
= arch_hdr (current
);
1349 strcpy (strptr
, normal
);
1350 if (! trailing_slash
)
1351 strptr
[thislen
] = '\012';
1354 strptr
[thislen
] = '/';
1355 strptr
[thislen
+ 1] = '\012';
1357 hdr
->ar_name
[0] = ar_padchar (current
);
1358 /* We know there will always be enough room (one of the few
1359 cases where you may safely use sprintf). */
1360 sprintf ((hdr
->ar_name
) + 1, "%-d", (unsigned) (strptr
- *tabloc
));
1361 /* Kinda Kludgy. We should just use the returned value of
1362 sprintf but not all implementations get this right */
1364 char *temp
= hdr
->ar_name
+ 2;
1365 for (; temp
< hdr
->ar_name
+ maxname
; temp
++)
1369 strptr
+= thislen
+ 1;
1378 /** A couple of functions for creating ar_hdrs */
1380 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1381 make one. The filename must refer to a filename in the filesystem.
1382 The filename field of the ar_hdr will NOT be initialized */
1384 static struct areltdata
*
1385 bfd_ar_hdr_from_filesystem (abfd
, filename
)
1387 const char *filename
;
1390 struct areltdata
*ared
;
1394 if (stat (filename
, &status
) != 0)
1396 bfd_set_error (bfd_error_system_call
);
1400 ared
= (struct areltdata
*) bfd_zalloc (abfd
, sizeof (struct ar_hdr
) +
1401 sizeof (struct areltdata
));
1404 bfd_set_error (bfd_error_no_memory
);
1407 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1409 /* ar headers are space padded, not null padded! */
1410 memset ((PTR
) hdr
, ' ', sizeof (struct ar_hdr
));
1412 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1414 /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
1415 sprintf ((hdr
->ar_date
), "%-12ld", (long) status
.st_mtime
);
1416 sprintf ((hdr
->ar_uid
), "%ld", (long) status
.st_uid
);
1417 sprintf ((hdr
->ar_gid
), "%ld", (long) status
.st_gid
);
1418 sprintf ((hdr
->ar_mode
), "%-8o", (unsigned int) status
.st_mode
);
1419 sprintf ((hdr
->ar_size
), "%-10ld", (long) status
.st_size
);
1420 /* Correct for a lossage in sprintf whereby it null-terminates. I cannot
1421 understand how these C losers could design such a ramshackle bunch of
1423 temp
= (char *) hdr
;
1424 temp1
= temp
+ sizeof (struct ar_hdr
) - 2;
1425 for (; temp
< temp1
; temp
++)
1430 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1431 ared
->parsed_size
= status
.st_size
;
1432 ared
->arch_header
= (char *) hdr
;
1437 /* This is magic required by the "ar" program. Since it's
1438 undocumented, it's undocumented. You may think that it would take
1439 a strong stomach to write this, and it does, but it takes even a
1440 stronger stomach to try to code around such a thing! */
1443 bfd_special_undocumented_glue (abfd
, filename
)
1447 struct areltdata
*ar_elt
= bfd_ar_hdr_from_filesystem (abfd
, filename
);
1450 return (struct ar_hdr
*) ar_elt
->arch_header
;
1454 /* Analogous to stat call */
1456 bfd_generic_stat_arch_elt (abfd
, buf
)
1463 if (abfd
->arelt_data
== NULL
)
1465 bfd_set_error (bfd_error_invalid_operation
);
1469 hdr
= arch_hdr (abfd
);
1471 #define foo(arelt, stelt, size) \
1472 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1473 if (aloser == hdr->arelt) return -1;
1475 foo (ar_date
, st_mtime
, 10);
1476 foo (ar_uid
, st_uid
, 10);
1477 foo (ar_gid
, st_gid
, 10);
1478 foo (ar_mode
, st_mode
, 8);
1480 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1486 bfd_dont_truncate_arname (abfd
, pathname
, arhdr
)
1488 CONST
char *pathname
;
1491 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1492 Fortunately ic960 users will never use that option. Fixing this
1493 is very hard; fortunately I know how to do it and will do so once
1494 intel's release is out the door. */
1496 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1498 const char *filename
;
1499 size_t maxlen
= ar_maxnamelen (abfd
);
1501 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1503 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
1507 filename
= normalize (abfd
, pathname
);
1508 if (filename
== NULL
)
1514 length
= strlen (filename
);
1516 if (length
<= maxlen
)
1517 memcpy (hdr
->ar_name
, filename
, length
);
1519 /* Add the padding character if there is room for it. */
1521 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
1522 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1526 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
)
1528 CONST
char *pathname
;
1531 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1533 CONST
char *filename
= strrchr (pathname
, '/');
1534 int maxlen
= ar_maxnamelen (abfd
);
1536 if (filename
== NULL
)
1537 filename
= pathname
;
1541 length
= strlen (filename
);
1543 if (length
<= maxlen
)
1544 memcpy (hdr
->ar_name
, filename
, length
);
1547 /* pathname: meet procrustes */
1548 memcpy (hdr
->ar_name
, filename
, maxlen
);
1552 if (length
< maxlen
)
1553 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1556 /* Store name into ar header. Truncates the name to fit.
1557 1> strip pathname to be just the basename.
1558 2> if it's short enuf to fit, stuff it in.
1559 3> If it doesn't end with .o, truncate it to fit
1560 4> truncate it before the .o, append .o, stuff THAT in. */
1562 /* This is what gnu ar does. It's better but incompatible with the
1566 bfd_gnu_truncate_arname (abfd
, pathname
, arhdr
)
1568 CONST
char *pathname
;
1571 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1573 CONST
char *filename
= strrchr (pathname
, '/');
1574 int maxlen
= ar_maxnamelen (abfd
);
1576 if (filename
== NULL
)
1577 filename
= pathname
;
1581 length
= strlen (filename
);
1583 if (length
<= maxlen
)
1584 memcpy (hdr
->ar_name
, filename
, length
);
1586 { /* pathname: meet procrustes */
1587 memcpy (hdr
->ar_name
, filename
, maxlen
);
1588 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
1590 hdr
->ar_name
[maxlen
- 2] = '.';
1591 hdr
->ar_name
[maxlen
- 1] = 'o';
1597 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1600 /* The BFD is open for write and has its format set to bfd_archive */
1603 _bfd_write_archive_contents (arch
)
1607 char *etable
= NULL
;
1608 bfd_size_type elength
= 0;
1609 const char *ename
= NULL
;
1610 boolean makemap
= bfd_has_map (arch
);
1611 boolean hasobjects
= false; /* if no .o's, don't bother to make a map */
1612 bfd_size_type wrote
;
1616 /* Verify the viability of all entries; if any of them live in the
1617 filesystem (as opposed to living in an archive open for input)
1618 then construct a fresh ar_hdr for them. */
1619 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1621 if (bfd_write_p (current
))
1623 bfd_set_error (bfd_error_invalid_operation
);
1626 if (!current
->arelt_data
)
1628 current
->arelt_data
=
1629 (PTR
) bfd_ar_hdr_from_filesystem (arch
, current
->filename
);
1630 if (!current
->arelt_data
)
1633 /* Put in the file name */
1634 BFD_SEND (arch
, _bfd_truncate_arname
, (arch
,
1636 (char *) arch_hdr (current
)));
1639 if (makemap
&& ! hasobjects
)
1640 { /* don't bother if we won't make a map! */
1641 if ((bfd_check_format (current
, bfd_object
))
1642 #if 0 /* FIXME -- these are not set correctly */
1643 && ((bfd_get_file_flags (current
) & HAS_SYMS
))
1650 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
1651 (arch
, &etable
, &elength
, &ename
)))
1654 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
1657 wrote
= bfd_write (BFD_GNU960_ARMAG (arch
), 1, SARMAG
, arch
);
1659 wrote
= bfd_write (ARMAG
, 1, SARMAG
, arch
);
1661 if (wrote
!= SARMAG
)
1664 if (makemap
&& hasobjects
)
1666 if (_bfd_compute_and_write_armap (arch
, elength
) != true)
1674 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1675 strcpy (hdr
.ar_name
, ename
);
1676 /* Round size up to even number in archive header. */
1677 sprintf (&(hdr
.ar_size
[0]), "%-10d",
1678 (int) ((elength
+ 1) & ~1));
1679 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1680 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1681 if (((char *) (&hdr
))[i
] == '\0')
1682 (((char *) (&hdr
))[i
]) = ' ';
1683 if ((bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1684 != sizeof (struct ar_hdr
))
1685 || bfd_write (etable
, 1, elength
, arch
) != elength
)
1687 if ((elength
% 2) == 1)
1689 if (bfd_write ("\012", 1, 1, arch
) != 1)
1694 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1696 char buffer
[DEFAULT_BUFFERSIZE
];
1697 unsigned int remaining
= arelt_size (current
);
1698 struct ar_hdr
*hdr
= arch_hdr (current
);
1700 /* write ar header */
1701 if (bfd_write ((char *) hdr
, 1, sizeof (*hdr
), arch
) != sizeof (*hdr
))
1703 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
1707 unsigned int amt
= DEFAULT_BUFFERSIZE
;
1708 if (amt
> remaining
)
1711 if (bfd_read (buffer
, amt
, 1, current
) != amt
)
1713 if (bfd_get_error () != bfd_error_system_call
)
1714 bfd_set_error (bfd_error_malformed_archive
);
1717 if (bfd_write (buffer
, amt
, 1, arch
) != amt
)
1721 if ((arelt_size (current
) % 2) == 1)
1723 if (bfd_write ("\012", 1, 1, arch
) != 1)
1728 if (makemap
&& hasobjects
)
1730 /* Verify the timestamp in the archive file. If it would not be
1731 accepted by the linker, rewrite it until it would be. If
1732 anything odd happens, break out and just return. (The
1733 Berkeley linker checks the timestamp and refuses to read the
1734 table-of-contents if it is >60 seconds less than the file's
1735 modified-time. That painful hack requires this painful hack. */
1739 if (bfd_update_armap_timestamp (arch
))
1741 (*_bfd_error_handler
)
1742 ("Warning: writing archive was slow: rewriting timestamp\n");
1744 while (++tries
< 6);
1750 /* Note that the namidx for the first symbol is 0 */
1753 _bfd_compute_and_write_armap (arch
, elength
)
1755 unsigned int elength
;
1757 char *first_name
= NULL
;
1759 file_ptr elt_no
= 0;
1760 struct orl
*map
= NULL
;
1761 int orl_max
= 1024; /* fine initial default */
1763 int stridx
= 0; /* string index */
1764 asymbol
**syms
= NULL
;
1768 /* Dunno if this is the best place for this info... */
1770 elength
+= sizeof (struct ar_hdr
);
1771 elength
+= elength
% 2;
1773 map
= (struct orl
*) malloc (orl_max
* sizeof (struct orl
));
1775 goto no_memory_return
;
1777 /* We put the symbol names on the arch obstack, and then discard
1779 first_name
= bfd_alloc (arch
, 1);
1780 if (first_name
== NULL
)
1781 goto no_memory_return
;
1783 /* Drop all the files called __.SYMDEF, we're going to make our
1785 while (arch
->archive_head
&&
1786 strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
1787 arch
->archive_head
= arch
->archive_head
->next
;
1789 /* Map over each element */
1790 for (current
= arch
->archive_head
;
1791 current
!= (bfd
*) NULL
;
1792 current
= current
->next
, elt_no
++)
1794 if ((bfd_check_format (current
, bfd_object
) == true)
1795 && ((bfd_get_file_flags (current
) & HAS_SYMS
)))
1801 storage
= bfd_get_symtab_upper_bound (current
);
1807 if (storage
> syms_max
)
1812 syms
= (asymbol
**) malloc ((size_t) syms_max
);
1814 goto no_memory_return
;
1816 symcount
= bfd_canonicalize_symtab (current
, syms
);
1820 /* Now map over all the symbols, picking out the ones we want */
1821 for (src_count
= 0; src_count
< symcount
; src_count
++)
1823 flagword flags
= (syms
[src_count
])->flags
;
1824 asection
*sec
= syms
[src_count
]->section
;
1826 if ((flags
& BSF_GLOBAL
||
1828 flags
& BSF_INDIRECT
||
1829 bfd_is_com_section (sec
))
1830 && ! bfd_is_und_section (sec
))
1833 struct orl
*new_map
;
1835 /* This symbol will go into the archive header */
1836 if (orl_count
== orl_max
)
1839 new_map
= ((struct orl
*)
1841 orl_max
* sizeof (struct orl
)));
1842 if (new_map
== (struct orl
*) NULL
)
1843 goto no_memory_return
;
1848 namelen
= strlen (syms
[src_count
]->name
);
1849 map
[orl_count
].name
= ((char **)
1852 if (map
[orl_count
].name
== NULL
)
1853 goto no_memory_return
;
1854 *(map
[orl_count
].name
) = bfd_alloc (arch
, namelen
+ 1);
1855 if (*(map
[orl_count
].name
) == NULL
)
1856 goto no_memory_return
;
1857 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
1858 (map
[orl_count
]).pos
= (file_ptr
) current
;
1859 (map
[orl_count
]).namidx
= stridx
;
1861 stridx
+= namelen
+ 1;
1867 /* Now ask the BFD to free up any cached information, so we
1868 don't fill all of memory with symbol tables. */
1869 if (! bfd_free_cached_info (current
))
1874 /* OK, now we have collected all the data, let's write them out */
1875 ret
= BFD_SEND (arch
, write_armap
,
1876 (arch
, elength
, map
, orl_count
, stridx
));
1882 if (first_name
!= NULL
)
1883 bfd_release (arch
, first_name
);
1888 bfd_set_error (bfd_error_no_memory
);
1895 if (first_name
!= NULL
)
1896 bfd_release (arch
, first_name
);
1902 bsd_write_armap (arch
, elength
, map
, orl_count
, stridx
)
1904 unsigned int elength
;
1906 unsigned int orl_count
;
1909 int padit
= stridx
& 1;
1910 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
1911 unsigned int stringsize
= stridx
+ padit
;
1912 /* Include 8 bytes to store ranlibsize and stringsize in output. */
1913 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
1915 bfd
*current
= arch
->archive_head
;
1916 bfd
*last_elt
= current
; /* last element arch seen */
1920 struct stat statbuf
;
1923 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
1925 stat (arch
->filename
, &statbuf
);
1926 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1927 sprintf (hdr
.ar_name
, RANLIBMAG
);
1928 /* Remember the timestamp, to keep it holy. But fudge it a little. */
1929 bfd_ardata (arch
)->armap_timestamp
= statbuf
.st_mtime
+ ARMAP_TIME_OFFSET
;
1930 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1931 + offsetof (struct ar_hdr
, ar_date
[0]));
1932 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1933 sprintf (hdr
.ar_uid
, "%ld", (long) getuid ());
1934 sprintf (hdr
.ar_gid
, "%ld", (long) getgid ());
1935 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
1936 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1937 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1938 if (((char *) (&hdr
))[i
] == '\0')
1939 (((char *) (&hdr
))[i
]) = ' ';
1940 if (bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1941 != sizeof (struct ar_hdr
))
1943 bfd_h_put_32 (arch
, (bfd_vma
) ranlibsize
, temp
);
1944 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1947 for (count
= 0; count
< orl_count
; count
++)
1949 bfd_byte buf
[BSD_SYMDEF_SIZE
];
1951 if (((bfd
*) (map
[count
]).pos
) != last_elt
)
1955 firstreal
+= arelt_size (current
) + sizeof (struct ar_hdr
);
1956 firstreal
+= firstreal
% 2;
1957 current
= current
->next
;
1959 while (current
!= (bfd
*) (map
[count
]).pos
);
1960 } /* if new archive element */
1963 bfd_h_put_32 (arch
, map
[count
].namidx
, buf
);
1964 bfd_h_put_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
1965 if (bfd_write (buf
, BSD_SYMDEF_SIZE
, 1, arch
) != BSD_SYMDEF_SIZE
)
1969 /* now write the strings themselves */
1970 bfd_h_put_32 (arch
, stringsize
, temp
);
1971 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1973 for (count
= 0; count
< orl_count
; count
++)
1975 size_t len
= strlen (*map
[count
].name
) + 1;
1977 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
1981 /* The spec sez this should be a newline. But in order to be
1982 bug-compatible for sun's ar we use a null. */
1985 if (bfd_write ("", 1, 1, arch
) != 1)
1992 /* At the end of archive file handling, update the timestamp in the
1993 file, so the linker will accept it.
1995 Return true if the timestamp was OK, or an unusual problem happened.
1996 Return false if we updated the timestamp. */
1999 _bfd_archive_bsd_update_armap_timestamp (arch
)
2002 struct stat archstat
;
2006 /* Flush writes, get last-write timestamp from file, and compare it
2007 to the timestamp IN the file. */
2009 if (bfd_stat (arch
, &archstat
) == -1)
2011 perror ("Reading archive file mod timestamp");
2012 return true; /* Can't read mod time for some reason */
2014 if (archstat
.st_mtime
<= bfd_ardata (arch
)->armap_timestamp
)
2015 return true; /* OK by the linker's rules */
2017 /* Update the timestamp. */
2018 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
2020 /* Prepare an ASCII version suitable for writing. */
2021 memset (hdr
.ar_date
, 0, sizeof (hdr
.ar_date
));
2022 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
2023 for (i
= 0; i
< sizeof (hdr
.ar_date
); i
++)
2024 if (hdr
.ar_date
[i
] == '\0')
2025 (hdr
.ar_date
)[i
] = ' ';
2027 /* Write it into the file. */
2028 bfd_ardata (arch
)->armap_datepos
= (SARMAG
2029 + offsetof (struct ar_hdr
, ar_date
[0]));
2030 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
2031 || (bfd_write (hdr
.ar_date
, sizeof (hdr
.ar_date
), 1, arch
)
2032 != sizeof (hdr
.ar_date
)))
2034 /* FIXME: bfd can't call perror. */
2035 perror ("Writing updated armap timestamp");
2036 return true; /* Some error while writing */
2039 return false; /* We updated the timestamp successfully. */
2042 /* A coff armap looks like :
2044 struct ar_hdr with name = '/'
2046 offset of file for symbol 0
2047 offset of file for symbol 1
2049 offset of file for symbol n-1
2057 coff_write_armap (arch
, elength
, map
, symbol_count
, stridx
)
2059 unsigned int elength
;
2061 unsigned int symbol_count
;
2064 /* The size of the ranlib is the number of exported symbols in the
2065 archive * the number of bytes in a int, + an int for the count */
2066 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2067 unsigned int stringsize
= stridx
;
2068 unsigned int mapsize
= stringsize
+ ranlibsize
;
2069 file_ptr archive_member_file_ptr
;
2070 bfd
*current
= arch
->archive_head
;
2074 int padit
= mapsize
& 1;
2079 /* work out where the first object file will go in the archive */
2080 archive_member_file_ptr
= (mapsize
2082 + sizeof (struct ar_hdr
)
2085 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
2086 hdr
.ar_name
[0] = '/';
2087 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
2088 sprintf (hdr
.ar_date
, "%ld", (long) time (NULL
));
2089 /* This, at least, is what Intel coff sets the values to.: */
2090 sprintf ((hdr
.ar_uid
), "%d", 0);
2091 sprintf ((hdr
.ar_gid
), "%d", 0);
2092 sprintf ((hdr
.ar_mode
), "%-7o", (unsigned) 0);
2093 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
2095 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
2096 if (((char *) (&hdr
))[i
] == '\0')
2097 (((char *) (&hdr
))[i
]) = ' ';
2099 /* Write the ar header for this item and the number of symbols */
2101 if (bfd_write ((PTR
) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
2102 != sizeof (struct ar_hdr
))
2105 bfd_write_bigendian_4byte_int (arch
, symbol_count
);
2107 /* Two passes, first write the file offsets for each symbol -
2108 remembering that each offset is on a two byte boundary. */
2110 /* Write out the file offset for the file associated with each
2111 symbol, and remember to keep the offsets padded out. */
2113 current
= arch
->archive_head
;
2115 while (current
!= (bfd
*) NULL
&& count
< symbol_count
)
2117 /* For each symbol which is used defined in this object, write out
2118 the object file's address in the archive */
2120 while (((bfd
*) (map
[count
]).pos
) == current
)
2122 bfd_write_bigendian_4byte_int (arch
, archive_member_file_ptr
);
2125 /* Add size of this archive entry */
2126 archive_member_file_ptr
+= (arelt_size (current
)
2127 + sizeof (struct ar_hdr
));
2128 /* remember aboout the even alignment */
2129 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2130 current
= current
->next
;
2133 /* now write the strings themselves */
2134 for (count
= 0; count
< symbol_count
; count
++)
2136 size_t len
= strlen (*map
[count
].name
) + 1;
2138 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
2142 /* The spec sez this should be a newline. But in order to be
2143 bug-compatible for arc960 we use a null. */
2146 if (bfd_write ("", 1, 1, arch
) != 1)