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., 675 Mass Ave, Cambridge, MA 02139, 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
,
181 static boolean compute_and_write_armap
PARAMS ((bfd
*arch
,
182 unsigned int elength
));
185 _bfd_generic_mkarchive (abfd
)
188 abfd
->tdata
.aout_ar_data
= ((struct artdata
*)
189 bfd_zalloc (abfd
, sizeof (struct artdata
)));
191 if (bfd_ardata (abfd
) == NULL
)
193 bfd_set_error (bfd_error_no_memory
);
197 bfd_ardata (abfd
)->cache
= NULL
;
198 bfd_ardata (abfd
)->archive_head
= NULL
;
199 bfd_ardata (abfd
)->symdefs
= NULL
;
200 bfd_ardata (abfd
)->extended_names
= NULL
;
201 bfd_ardata (abfd
)->tdata
= NULL
;
211 symindex bfd_get_next_mapent(bfd *abfd, symindex previous, carsym **sym);
214 Step through archive @var{abfd}'s symbol table (if it
215 has one). Successively update @var{sym} with the next symbol's
216 information, returning that symbol's (internal) index into the
219 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
220 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
223 A <<carsym>> is a canonical archive symbol. The only
224 user-visible element is its name, a null-terminated string.
228 bfd_get_next_mapent (abfd
, prev
, entry
)
233 if (!bfd_has_map (abfd
))
235 bfd_set_error (bfd_error_invalid_operation
);
236 return BFD_NO_MORE_SYMBOLS
;
239 if (prev
== BFD_NO_MORE_SYMBOLS
)
241 else 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_snarf_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
= _bfd_snarf_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
;
683 /* Some constants for a 32 bit BSD archive structure. We do not
684 support 64 bit archives presently; so far as I know, none actually
685 exist. Supporting them would require changing these constants, and
686 changing some bfd_h_get_32 to bfd_h_get_64. */
688 /* The size of an external symdef structure. */
689 #define BSD_SYMDEF_SIZE 8
691 /* The offset from the start of a symdef structure to the file offset. */
692 #define BSD_SYMDEF_OFFSET_SIZE 4
694 /* The size of the symdef count. */
695 #define BSD_SYMDEF_COUNT_SIZE 4
697 /* The size of the string count. */
698 #define BSD_STRING_COUNT_SIZE 4
700 /* Returns false on error, true otherwise */
703 do_slurp_bsd_armap (abfd
)
706 struct areltdata
*mapdata
;
707 unsigned int counter
;
708 bfd_byte
*raw_armap
, *rbase
;
709 struct artdata
*ardata
= bfd_ardata (abfd
);
711 unsigned int parsed_size
;
714 mapdata
= _bfd_snarf_ar_hdr (abfd
);
717 parsed_size
= mapdata
->parsed_size
;
718 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
720 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, parsed_size
);
721 if (raw_armap
== (bfd_byte
*) NULL
)
723 bfd_set_error (bfd_error_no_memory
);
727 if (bfd_read ((PTR
) raw_armap
, 1, parsed_size
, abfd
) != parsed_size
)
729 if (bfd_get_error () != bfd_error_system_call
)
730 bfd_set_error (bfd_error_malformed_archive
);
732 bfd_release (abfd
, (PTR
) raw_armap
);
736 ardata
->symdef_count
= bfd_h_get_32 (abfd
, raw_armap
) / BSD_SYMDEF_SIZE
;
738 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
>
739 parsed_size
- BSD_SYMDEF_COUNT_SIZE
)
741 /* Probably we're using the wrong byte ordering. */
742 bfd_set_error (bfd_error_wrong_format
);
747 rbase
= raw_armap
+ BSD_SYMDEF_COUNT_SIZE
;
748 stringbase
= ((char *) rbase
749 + ardata
->symdef_count
* BSD_SYMDEF_SIZE
750 + BSD_STRING_COUNT_SIZE
);
751 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
752 (ardata
->symdef_count
754 if (!ardata
->symdefs
)
756 bfd_set_error (bfd_error_no_memory
);
760 for (counter
= 0, set
= ardata
->symdefs
;
761 counter
< ardata
->symdef_count
;
762 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
764 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
765 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
768 ardata
->first_file_filepos
= bfd_tell (abfd
);
769 /* Pad to an even boundary if you have to */
770 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
771 /* FIXME, we should provide some way to free raw_ardata when
772 we are done using the strings from it. For now, it seems
773 to be allocated on an obstack anyway... */
774 bfd_has_map (abfd
) = true;
778 /* Returns false on error, true otherwise */
780 do_slurp_coff_armap (abfd
)
783 struct areltdata
*mapdata
;
784 int *raw_armap
, *rawptr
;
785 struct artdata
*ardata
= bfd_ardata (abfd
);
787 unsigned int stringsize
;
788 unsigned int parsed_size
;
790 unsigned int nsymz
; /* Number of symbols in armap. */
791 bfd_vma (*swap
) PARAMS ((const bfd_byte
*));
792 char int_buf
[sizeof (long)];
793 unsigned int carsym_size
, ptrsize
, i
;
795 mapdata
= _bfd_snarf_ar_hdr (abfd
);
798 parsed_size
= mapdata
->parsed_size
;
799 bfd_release (abfd
, (PTR
) mapdata
); /* Don't need it any more. */
801 if (bfd_read ((PTR
) int_buf
, 1, 4, abfd
) != 4)
803 if (bfd_get_error () != bfd_error_system_call
)
804 bfd_set_error (bfd_error_malformed_archive
);
807 /* It seems that all numeric information in a coff archive is always
808 in big endian format, nomatter the host or target. */
810 nsymz
= bfd_getb32 ((PTR
) int_buf
);
811 stringsize
= parsed_size
- (4 * nsymz
) - 4;
814 /* ... except that some archive formats are broken, and it may be our
815 fault - the i960 little endian coff sometimes has big and sometimes
816 little, because our tools changed. Here's a horrible hack to clean
819 if (stringsize
> 0xfffff)
821 /* This looks dangerous, let's do it the other way around */
822 nsymz
= bfd_getl32 ((PTR
) int_buf
);
823 stringsize
= parsed_size
- (4 * nsymz
) - 4;
828 /* The coff armap must be read sequentially. So we construct a
829 bsd-style one in core all at once, for simplicity. */
831 carsym_size
= (nsymz
* sizeof (carsym
));
832 ptrsize
= (4 * nsymz
);
834 ardata
->symdefs
= (carsym
*) bfd_zalloc (abfd
, carsym_size
+ stringsize
+ 1);
835 if (ardata
->symdefs
== NULL
)
837 bfd_set_error (bfd_error_no_memory
);
840 carsyms
= ardata
->symdefs
;
841 stringbase
= ((char *) ardata
->symdefs
) + carsym_size
;
843 /* Allocate and read in the raw offsets. */
844 raw_armap
= (int *) bfd_alloc (abfd
, ptrsize
);
845 if (raw_armap
== NULL
)
847 bfd_set_error (bfd_error_no_memory
);
848 goto release_symdefs
;
850 if (bfd_read ((PTR
) raw_armap
, 1, ptrsize
, abfd
) != ptrsize
851 || bfd_read ((PTR
) stringbase
, 1, stringsize
, abfd
) != stringsize
)
853 if (bfd_get_error () != bfd_error_system_call
)
854 bfd_set_error (bfd_error_malformed_archive
);
855 goto release_raw_armap
;
858 /* OK, build the carsyms */
859 for (i
= 0; i
< nsymz
; i
++)
861 rawptr
= raw_armap
+ i
;
862 carsyms
->file_offset
= swap ((PTR
) rawptr
);
863 carsyms
->name
= stringbase
;
864 stringbase
+= strlen (stringbase
) + 1;
869 ardata
->symdef_count
= nsymz
;
870 ardata
->first_file_filepos
= bfd_tell (abfd
);
871 /* Pad to an even boundary if you have to */
872 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
875 bfd_has_map (abfd
) = true;
876 bfd_release (abfd
, (PTR
) raw_armap
);
879 /* Check for a second archive header (as used by PE) */
881 struct areltdata
*tmp
;
883 bfd_seek (abfd
, ardata
->first_file_filepos
, SEEK_SET
);
884 tmp
= _bfd_snarf_ar_hdr (abfd
);
887 if (tmp
->arch_header
[0] == '/'
888 && tmp
->arch_header
[1] == ' ')
890 ardata
->first_file_filepos
+=
891 (tmp
->parsed_size
+ sizeof(struct ar_hdr
) + 1) & ~1;
893 bfd_release (abfd
, tmp
);
900 bfd_release (abfd
, (PTR
) raw_armap
);
902 bfd_release (abfd
, (PTR
) (ardata
)->symdefs
);
906 /* This routine can handle either coff-style or bsd-style armaps.
907 Returns false on error, true otherwise */
910 bfd_slurp_armap (abfd
)
914 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
921 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
924 if (!strncmp (nextname
, "__.SYMDEF ", 16)
925 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
926 return do_slurp_bsd_armap (abfd
);
927 else if (!strncmp (nextname
, "/ ", 16))
928 return do_slurp_coff_armap (abfd
);
930 bfd_has_map (abfd
) = false;
934 /* Returns false on error, true otherwise */
935 /* flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
936 header is in a slightly different order and the map name is '/'.
937 This flavour is used by hp300hpux. */
939 #define HPUX_SYMDEF_COUNT_SIZE 2
942 bfd_slurp_bsd_armap_f2 (abfd
)
945 struct areltdata
*mapdata
;
947 unsigned int counter
;
948 bfd_byte
*raw_armap
, *rbase
;
949 struct artdata
*ardata
= bfd_ardata (abfd
);
951 unsigned int stringsize
;
953 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
960 /* The archive has at least 16 bytes in it */
961 if (bfd_seek (abfd
, -16L, SEEK_CUR
) != 0)
964 if (!strncmp (nextname
, "__.SYMDEF ", 16)
965 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
966 return do_slurp_bsd_armap (abfd
);
968 if (strncmp (nextname
, "/ ", 16))
970 bfd_has_map (abfd
) = false;
974 mapdata
= _bfd_snarf_ar_hdr (abfd
);
978 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, mapdata
->parsed_size
);
979 if (raw_armap
== NULL
)
981 bfd_set_error (bfd_error_no_memory
);
983 bfd_release (abfd
, (PTR
) mapdata
);
987 if (bfd_read ((PTR
) raw_armap
, 1, mapdata
->parsed_size
, abfd
) !=
988 mapdata
->parsed_size
)
990 if (bfd_get_error () != bfd_error_system_call
)
991 bfd_set_error (bfd_error_malformed_archive
);
993 bfd_release (abfd
, (PTR
) raw_armap
);
997 ardata
->symdef_count
= bfd_h_get_16 (abfd
, (PTR
) raw_armap
);
999 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
1000 > mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
)
1002 /* Probably we're using the wrong byte ordering. */
1003 bfd_set_error (bfd_error_wrong_format
);
1009 stringsize
= bfd_h_get_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
1010 /* skip sym count and string sz */
1011 stringbase
= ((char *) raw_armap
1012 + HPUX_SYMDEF_COUNT_SIZE
1013 + BSD_STRING_COUNT_SIZE
);
1014 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
1015 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
1016 (ardata
->symdef_count
1017 * BSD_SYMDEF_SIZE
));
1018 if (!ardata
->symdefs
)
1020 bfd_set_error (bfd_error_no_memory
);
1024 for (counter
= 0, set
= ardata
->symdefs
;
1025 counter
< ardata
->symdef_count
;
1026 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1028 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
1029 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1032 ardata
->first_file_filepos
= bfd_tell (abfd
);
1033 /* Pad to an even boundary if you have to */
1034 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1035 /* FIXME, we should provide some way to free raw_ardata when
1036 we are done using the strings from it. For now, it seems
1037 to be allocated on an obstack anyway... */
1038 bfd_has_map (abfd
) = true;
1042 /** Extended name table.
1044 Normally archives support only 14-character filenames.
1046 Intel has extended the format: longer names are stored in a special
1047 element (the first in the archive, or second if there is an armap);
1048 the name in the ar_hdr is replaced by <space><index into filename
1049 element>. Index is the P.R. of an int (decimal). Data General have
1050 extended the format by using the prefix // for the special element */
1052 /* Returns false on error, true otherwise */
1054 _bfd_slurp_extended_name_table (abfd
)
1058 struct areltdata
*namedata
;
1060 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1061 we probably don't want to return true. */
1062 bfd_seek (abfd
, bfd_ardata (abfd
)->first_file_filepos
, SEEK_SET
);
1063 if (bfd_read ((PTR
) nextname
, 1, 16, abfd
) == 16)
1065 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
1068 if (strncmp (nextname
, "ARFILENAMES/ ", 16) != 0 &&
1069 strncmp (nextname
, "// ", 16) != 0)
1071 bfd_ardata (abfd
)->extended_names
= NULL
;
1075 namedata
= _bfd_snarf_ar_hdr (abfd
);
1076 if (namedata
== NULL
)
1079 bfd_ardata (abfd
)->extended_names
=
1080 bfd_zalloc (abfd
, namedata
->parsed_size
);
1081 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1083 bfd_set_error (bfd_error_no_memory
);
1085 bfd_release (abfd
, (PTR
) namedata
);
1089 if (bfd_read ((PTR
) bfd_ardata (abfd
)->extended_names
, 1,
1090 namedata
->parsed_size
, abfd
) != namedata
->parsed_size
)
1092 if (bfd_get_error () != bfd_error_system_call
)
1093 bfd_set_error (bfd_error_malformed_archive
);
1094 bfd_release (abfd
, (PTR
) (bfd_ardata (abfd
)->extended_names
));
1095 bfd_ardata (abfd
)->extended_names
= NULL
;
1099 /* Since the archive is supposed to be printable if it contains
1100 text, the entries in the list are newline-padded, not null
1101 padded. In SVR4-style archives, the names also have a
1102 trailing '/'. DOS/NT created archive often have \ in them
1103 We'll fix all problems here.. */
1105 char *temp
= bfd_ardata (abfd
)->extended_names
;
1106 char *limit
= temp
+ namedata
->parsed_size
;
1107 for (; temp
< limit
; ++temp
) {
1108 if (*temp
== '\012')
1109 temp
[temp
[-1] == '/' ? -1 : 0] = '\0';
1115 /* Pad to an even boundary if you have to */
1116 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1117 bfd_ardata (abfd
)->first_file_filepos
+=
1118 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1120 /* FIXME, we can't release namedata here because it was allocated
1121 below extended_names on the obstack... */
1122 /* bfd_release (abfd, namedata); */
1129 /* Return a copy of the stuff in the filename between any :]> and a
1132 normalize (abfd
, file
)
1140 first
= file
+ strlen (file
) - 1;
1143 while (first
!= file
)
1147 if (*first
== ':' || *first
== ']' || *first
== '>')
1155 copy
= (char *) bfd_alloc (abfd
, last
- first
+ 1);
1158 bfd_set_error (bfd_error_no_memory
);
1162 memcpy (copy
, first
, last
- first
);
1163 copy
[last
- first
] = 0;
1170 normalize (abfd
, file
)
1174 const char *filename
= strrchr (file
, '/');
1176 if (filename
!= (char *) NULL
)
1184 /* Build a BFD style extended name table. */
1187 _bfd_archive_bsd_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1190 bfd_size_type
*tablen
;
1193 *name
= "ARFILENAMES/";
1194 return _bfd_construct_extended_name_table (abfd
, false, tabloc
, tablen
);
1197 /* Build an SVR4 style extended name table. */
1200 _bfd_archive_coff_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1203 bfd_size_type
*tablen
;
1207 return _bfd_construct_extended_name_table (abfd
, true, tabloc
, tablen
);
1210 /* Follows archive_head and produces an extended name table if
1211 necessary. Returns (in tabloc) a pointer to an extended name
1212 table, and in tablen the length of the table. If it makes an entry
1213 it clobbers the filename so that the element may be written without
1214 further massage. Returns true if it ran successfully, false if
1215 something went wrong. A successful return may still involve a
1216 zero-length tablen! */
1219 _bfd_construct_extended_name_table (abfd
, trailing_slash
, tabloc
, tablen
)
1221 boolean trailing_slash
;
1223 bfd_size_type
*tablen
;
1225 unsigned int maxname
= abfd
->xvec
->ar_max_namelen
;
1226 unsigned int total_namelen
= 0;
1232 /* Figure out how long the table should be */
1233 for (current
= abfd
->archive_head
; current
!= NULL
; current
= current
->next
)
1236 unsigned int thislen
;
1238 normal
= normalize (current
, current
->filename
);
1242 thislen
= strlen (normal
);
1244 if (thislen
> maxname
1245 && (bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1248 if (thislen
> maxname
)
1250 /* Add one to leave room for \n. */
1251 total_namelen
+= thislen
+ 1;
1254 /* Leave room for trailing slash. */
1260 struct ar_hdr
*hdr
= arch_hdr (current
);
1261 if (strncmp (normal
, hdr
->ar_name
, thislen
) != 0
1262 || (thislen
< sizeof hdr
->ar_name
1263 && hdr
->ar_name
[thislen
] != ar_padchar (current
)))
1265 /* Must have been using extended format even though it
1266 didn't need to. Fix it to use normal format. */
1267 memcpy (hdr
->ar_name
, normal
, thislen
);
1268 if (thislen
< maxname
1269 || (thislen
== maxname
&& thislen
< sizeof hdr
->ar_name
))
1270 hdr
->ar_name
[thislen
] = ar_padchar (current
);
1275 if (total_namelen
== 0)
1278 *tabloc
= bfd_zalloc (abfd
, total_namelen
);
1279 if (*tabloc
== NULL
)
1281 bfd_set_error (bfd_error_no_memory
);
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 bfd_set_error (bfd_error_no_memory
);
1363 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1365 /* ar headers are space padded, not null padded! */
1366 memset ((PTR
) hdr
, ' ', sizeof (struct ar_hdr
));
1368 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1370 /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
1371 sprintf ((hdr
->ar_date
), "%-12ld", (long) status
.st_mtime
);
1372 sprintf ((hdr
->ar_uid
), "%ld", (long) status
.st_uid
);
1373 sprintf ((hdr
->ar_gid
), "%ld", (long) status
.st_gid
);
1374 sprintf ((hdr
->ar_mode
), "%-8o", (unsigned int) status
.st_mode
);
1375 sprintf ((hdr
->ar_size
), "%-10ld", (long) status
.st_size
);
1376 /* Correct for a lossage in sprintf whereby it null-terminates. I cannot
1377 understand how these C losers could design such a ramshackle bunch of
1379 temp
= (char *) hdr
;
1380 temp1
= temp
+ sizeof (struct ar_hdr
) - 2;
1381 for (; temp
< temp1
; temp
++)
1386 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1387 ared
->parsed_size
= status
.st_size
;
1388 ared
->arch_header
= (char *) hdr
;
1393 /* This is magic required by the "ar" program. Since it's
1394 undocumented, it's undocumented. You may think that it would take
1395 a strong stomach to write this, and it does, but it takes even a
1396 stronger stomach to try to code around such a thing! */
1399 bfd_special_undocumented_glue (abfd
, filename
)
1403 struct areltdata
*ar_elt
= bfd_ar_hdr_from_filesystem (abfd
, filename
);
1406 return (struct ar_hdr
*) ar_elt
->arch_header
;
1410 /* Analogous to stat call */
1412 bfd_generic_stat_arch_elt (abfd
, buf
)
1419 if (abfd
->arelt_data
== NULL
)
1421 bfd_set_error (bfd_error_invalid_operation
);
1425 hdr
= arch_hdr (abfd
);
1427 #define foo(arelt, stelt, size) \
1428 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1429 if (aloser == hdr->arelt) return -1;
1431 foo (ar_date
, st_mtime
, 10);
1432 foo (ar_uid
, st_uid
, 10);
1433 foo (ar_gid
, st_gid
, 10);
1434 foo (ar_mode
, st_mode
, 8);
1436 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1442 bfd_dont_truncate_arname (abfd
, pathname
, arhdr
)
1444 CONST
char *pathname
;
1447 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1448 Fortunately ic960 users will never use that option. Fixing this
1449 is very hard; fortunately I know how to do it and will do so once
1450 intel's release is out the door. */
1452 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1454 const char *filename
;
1455 int maxlen
= ar_maxnamelen (abfd
);
1457 if ((bfd_get_file_flags (abfd
) & BFD_TRADITIONAL_FORMAT
) != 0)
1459 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
);
1463 filename
= normalize (abfd
, pathname
);
1464 if (filename
== NULL
)
1470 length
= strlen (filename
);
1472 if (length
<= maxlen
)
1473 memcpy (hdr
->ar_name
, filename
, length
);
1475 /* Add the padding character if there is room for it. */
1477 || (length
== maxlen
&& length
< sizeof hdr
->ar_name
))
1478 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1482 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
)
1484 CONST
char *pathname
;
1487 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1489 CONST
char *filename
= strrchr (pathname
, '/');
1490 int maxlen
= ar_maxnamelen (abfd
);
1492 if (filename
== NULL
)
1493 filename
= pathname
;
1497 length
= strlen (filename
);
1499 if (length
<= maxlen
)
1500 memcpy (hdr
->ar_name
, filename
, length
);
1503 /* pathname: meet procrustes */
1504 memcpy (hdr
->ar_name
, filename
, maxlen
);
1508 if (length
< maxlen
)
1509 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1512 /* Store name into ar header. Truncates the name to fit.
1513 1> strip pathname to be just the basename.
1514 2> if it's short enuf to fit, stuff it in.
1515 3> If it doesn't end with .o, truncate it to fit
1516 4> truncate it before the .o, append .o, stuff THAT in. */
1518 /* This is what gnu ar does. It's better but incompatible with the
1522 bfd_gnu_truncate_arname (abfd
, pathname
, arhdr
)
1524 CONST
char *pathname
;
1527 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1529 CONST
char *filename
= strrchr (pathname
, '/');
1530 int maxlen
= ar_maxnamelen (abfd
);
1532 if (filename
== NULL
)
1533 filename
= pathname
;
1537 length
= strlen (filename
);
1539 if (length
<= maxlen
)
1540 memcpy (hdr
->ar_name
, filename
, length
);
1542 { /* pathname: meet procrustes */
1543 memcpy (hdr
->ar_name
, filename
, maxlen
);
1544 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
1546 hdr
->ar_name
[maxlen
- 2] = '.';
1547 hdr
->ar_name
[maxlen
- 1] = 'o';
1553 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1556 /* The BFD is open for write and has its format set to bfd_archive */
1559 _bfd_write_archive_contents (arch
)
1563 char *etable
= NULL
;
1564 bfd_size_type elength
= 0;
1565 const char *ename
= NULL
;
1566 boolean makemap
= bfd_has_map (arch
);
1567 boolean hasobjects
= false; /* if no .o's, don't bother to make a map */
1568 bfd_size_type wrote
;
1572 /* Verify the viability of all entries; if any of them live in the
1573 filesystem (as opposed to living in an archive open for input)
1574 then construct a fresh ar_hdr for them. */
1575 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1577 if (bfd_write_p (current
))
1579 bfd_set_error (bfd_error_invalid_operation
);
1582 if (!current
->arelt_data
)
1584 current
->arelt_data
=
1585 (PTR
) bfd_ar_hdr_from_filesystem (arch
, current
->filename
);
1586 if (!current
->arelt_data
)
1589 /* Put in the file name */
1590 BFD_SEND (arch
, _bfd_truncate_arname
, (arch
,
1592 (char *) arch_hdr (current
)));
1595 if (makemap
&& ! hasobjects
)
1596 { /* don't bother if we won't make a map! */
1597 if ((bfd_check_format (current
, bfd_object
))
1598 #if 0 /* FIXME -- these are not set correctly */
1599 && ((bfd_get_file_flags (current
) & HAS_SYMS
))
1606 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
1607 (arch
, &etable
, &elength
, &ename
)))
1610 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
1613 wrote
= bfd_write (BFD_GNU960_ARMAG (arch
), 1, SARMAG
, arch
);
1615 wrote
= bfd_write (ARMAG
, 1, SARMAG
, arch
);
1617 if (wrote
!= SARMAG
)
1620 if (makemap
&& hasobjects
)
1622 if (compute_and_write_armap (arch
, elength
) != true)
1630 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1631 strcpy (hdr
.ar_name
, ename
);
1632 /* Round size up to even number in archive header. */
1633 sprintf (&(hdr
.ar_size
[0]), "%-10d",
1634 (int) ((elength
+ 1) & ~1));
1635 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1636 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1637 if (((char *) (&hdr
))[i
] == '\0')
1638 (((char *) (&hdr
))[i
]) = ' ';
1639 if ((bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1640 != sizeof (struct ar_hdr
))
1641 || bfd_write (etable
, 1, elength
, arch
) != elength
)
1643 if ((elength
% 2) == 1)
1645 if (bfd_write ("\012", 1, 1, arch
) != 1)
1650 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1652 char buffer
[DEFAULT_BUFFERSIZE
];
1653 unsigned int remaining
= arelt_size (current
);
1654 struct ar_hdr
*hdr
= arch_hdr (current
);
1656 /* write ar header */
1657 if (bfd_write ((char *) hdr
, 1, sizeof (*hdr
), arch
) != sizeof (*hdr
))
1659 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
1663 unsigned int amt
= DEFAULT_BUFFERSIZE
;
1664 if (amt
> remaining
)
1667 if (bfd_read (buffer
, amt
, 1, current
) != amt
)
1669 if (bfd_get_error () != bfd_error_system_call
)
1670 bfd_set_error (bfd_error_malformed_archive
);
1673 if (bfd_write (buffer
, amt
, 1, arch
) != amt
)
1677 if ((arelt_size (current
) % 2) == 1)
1679 if (bfd_write ("\012", 1, 1, arch
) != 1)
1684 if (makemap
&& hasobjects
)
1686 /* Verify the timestamp in the archive file. If it would not be
1687 accepted by the linker, rewrite it until it would be. If
1688 anything odd happens, break out and just return. (The
1689 Berkeley linker checks the timestamp and refuses to read the
1690 table-of-contents if it is >60 seconds less than the file's
1691 modified-time. That painful hack requires this painful hack. */
1695 if (bfd_update_armap_timestamp (arch
))
1698 "Warning: writing archive was slow: rewriting timestamp\n");
1700 while (++tries
< 6);
1706 /* Note that the namidx for the first symbol is 0 */
1709 compute_and_write_armap (arch
, elength
)
1711 unsigned int elength
;
1713 char *first_name
= NULL
;
1715 file_ptr elt_no
= 0;
1716 struct orl
*map
= NULL
;
1717 int orl_max
= 1024; /* fine initial default */
1719 int stridx
= 0; /* string index */
1720 asymbol
**syms
= NULL
;
1724 /* Dunno if this is the best place for this info... */
1726 elength
+= sizeof (struct ar_hdr
);
1727 elength
+= elength
% 2;
1729 map
= (struct orl
*) malloc (orl_max
* sizeof (struct orl
));
1731 goto no_memory_return
;
1733 /* We put the symbol names on the arch obstack, and then discard
1735 first_name
= bfd_alloc (arch
, 1);
1736 if (first_name
== NULL
)
1737 goto no_memory_return
;
1739 /* Drop all the files called __.SYMDEF, we're going to make our
1741 while (arch
->archive_head
&&
1742 strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
1743 arch
->archive_head
= arch
->archive_head
->next
;
1745 /* Map over each element */
1746 for (current
= arch
->archive_head
;
1747 current
!= (bfd
*) NULL
;
1748 current
= current
->next
, elt_no
++)
1750 if ((bfd_check_format (current
, bfd_object
) == true)
1751 && ((bfd_get_file_flags (current
) & HAS_SYMS
)))
1757 storage
= bfd_get_symtab_upper_bound (current
);
1763 if (storage
> syms_max
)
1768 syms
= (asymbol
**) malloc ((size_t) syms_max
);
1770 goto no_memory_return
;
1772 symcount
= bfd_canonicalize_symtab (current
, syms
);
1776 /* Now map over all the symbols, picking out the ones we want */
1777 for (src_count
= 0; src_count
< symcount
; src_count
++)
1779 flagword flags
= (syms
[src_count
])->flags
;
1780 asection
*sec
= syms
[src_count
]->section
;
1782 if ((flags
& BSF_GLOBAL
||
1784 flags
& BSF_INDIRECT
||
1785 bfd_is_com_section (sec
))
1786 && ! bfd_is_und_section (sec
))
1789 struct orl
*new_map
;
1791 /* This symbol will go into the archive header */
1792 if (orl_count
== orl_max
)
1795 new_map
= ((struct orl
*)
1797 orl_max
* sizeof (struct orl
)));
1798 if (new_map
== (struct orl
*) NULL
)
1799 goto no_memory_return
;
1804 namelen
= strlen (syms
[src_count
]->name
);
1805 map
[orl_count
].name
= ((char **)
1808 if (map
[orl_count
].name
== NULL
)
1809 goto no_memory_return
;
1810 *(map
[orl_count
].name
) = bfd_alloc (arch
, namelen
+ 1);
1811 if (*(map
[orl_count
].name
) == NULL
)
1812 goto no_memory_return
;
1813 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
1814 (map
[orl_count
]).pos
= (file_ptr
) current
;
1815 (map
[orl_count
]).namidx
= stridx
;
1817 stridx
+= namelen
+ 1;
1823 /* Now ask the BFD to free up any cached information, so we
1824 don't fill all of memory with symbol tables. */
1825 if (! bfd_free_cached_info (current
))
1830 /* OK, now we have collected all the data, let's write them out */
1831 ret
= BFD_SEND (arch
, write_armap
,
1832 (arch
, elength
, map
, orl_count
, stridx
));
1838 if (first_name
!= NULL
)
1839 bfd_release (arch
, first_name
);
1844 bfd_set_error (bfd_error_no_memory
);
1851 if (first_name
!= NULL
)
1852 bfd_release (arch
, first_name
);
1858 bsd_write_armap (arch
, elength
, map
, orl_count
, stridx
)
1860 unsigned int elength
;
1862 unsigned int orl_count
;
1865 int padit
= stridx
& 1;
1866 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
1867 unsigned int stringsize
= stridx
+ padit
;
1868 /* Include 8 bytes to store ranlibsize and stringsize in output. */
1869 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
1871 bfd
*current
= arch
->archive_head
;
1872 bfd
*last_elt
= current
; /* last element arch seen */
1876 struct stat statbuf
;
1879 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
1881 stat (arch
->filename
, &statbuf
);
1882 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1883 sprintf (hdr
.ar_name
, RANLIBMAG
);
1884 /* Remember the timestamp, to keep it holy. But fudge it a little. */
1885 bfd_ardata (arch
)->armap_timestamp
= statbuf
.st_mtime
+ ARMAP_TIME_OFFSET
;
1886 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1887 + offsetof (struct ar_hdr
, ar_date
[0]));
1888 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1889 sprintf (hdr
.ar_uid
, "%ld", (long) getuid ());
1890 sprintf (hdr
.ar_gid
, "%ld", (long) getgid ());
1891 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
1892 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1893 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1894 if (((char *) (&hdr
))[i
] == '\0')
1895 (((char *) (&hdr
))[i
]) = ' ';
1896 if (bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1897 != sizeof (struct ar_hdr
))
1899 bfd_h_put_32 (arch
, (bfd_vma
) ranlibsize
, temp
);
1900 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1903 for (count
= 0; count
< orl_count
; count
++)
1905 bfd_byte buf
[BSD_SYMDEF_SIZE
];
1907 if (((bfd
*) (map
[count
]).pos
) != last_elt
)
1911 firstreal
+= arelt_size (current
) + sizeof (struct ar_hdr
);
1912 firstreal
+= firstreal
% 2;
1913 current
= current
->next
;
1915 while (current
!= (bfd
*) (map
[count
]).pos
);
1916 } /* if new archive element */
1919 bfd_h_put_32 (arch
, map
[count
].namidx
, buf
);
1920 bfd_h_put_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
1921 if (bfd_write (buf
, BSD_SYMDEF_SIZE
, 1, arch
) != BSD_SYMDEF_SIZE
)
1925 /* now write the strings themselves */
1926 bfd_h_put_32 (arch
, stringsize
, temp
);
1927 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1929 for (count
= 0; count
< orl_count
; count
++)
1931 size_t len
= strlen (*map
[count
].name
) + 1;
1933 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
1937 /* The spec sez this should be a newline. But in order to be
1938 bug-compatible for sun's ar we use a null. */
1941 if (bfd_write ("", 1, 1, arch
) != 1)
1948 /* At the end of archive file handling, update the timestamp in the
1949 file, so the linker will accept it.
1951 Return true if the timestamp was OK, or an unusual problem happened.
1952 Return false if we updated the timestamp. */
1955 _bfd_archive_bsd_update_armap_timestamp (arch
)
1958 struct stat archstat
;
1962 /* Flush writes, get last-write timestamp from file, and compare it
1963 to the timestamp IN the file. */
1965 if (bfd_stat (arch
, &archstat
) == -1)
1967 perror ("Reading archive file mod timestamp");
1968 return true; /* Can't read mod time for some reason */
1970 if (archstat
.st_mtime
<= bfd_ardata (arch
)->armap_timestamp
)
1971 return true; /* OK by the linker's rules */
1973 /* Update the timestamp. */
1974 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
1976 /* Prepare an ASCII version suitable for writing. */
1977 memset (hdr
.ar_date
, 0, sizeof (hdr
.ar_date
));
1978 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1979 for (i
= 0; i
< sizeof (hdr
.ar_date
); i
++)
1980 if (hdr
.ar_date
[i
] == '\0')
1981 (hdr
.ar_date
)[i
] = ' ';
1983 /* Write it into the file. */
1984 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1985 + offsetof (struct ar_hdr
, ar_date
[0]));
1986 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
1987 || (bfd_write (hdr
.ar_date
, sizeof (hdr
.ar_date
), 1, arch
)
1988 != sizeof (hdr
.ar_date
)))
1990 /* FIXME: bfd can't call perror. */
1991 perror ("Writing updated armap timestamp");
1992 return true; /* Some error while writing */
1995 return false; /* We updated the timestamp successfully. */
1998 /* A coff armap looks like :
2000 struct ar_hdr with name = '/'
2002 offset of file for symbol 0
2003 offset of file for symbol 1
2005 offset of file for symbol n-1
2013 coff_write_armap (arch
, elength
, map
, symbol_count
, stridx
)
2015 unsigned int elength
;
2017 unsigned int symbol_count
;
2020 /* The size of the ranlib is the number of exported symbols in the
2021 archive * the number of bytes in a int, + an int for the count */
2022 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
2023 unsigned int stringsize
= stridx
;
2024 unsigned int mapsize
= stringsize
+ ranlibsize
;
2025 file_ptr archive_member_file_ptr
;
2026 bfd
*current
= arch
->archive_head
;
2030 int padit
= mapsize
& 1;
2035 /* work out where the first object file will go in the archive */
2036 archive_member_file_ptr
= (mapsize
2038 + sizeof (struct ar_hdr
)
2041 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
2042 hdr
.ar_name
[0] = '/';
2043 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
2044 sprintf (hdr
.ar_date
, "%ld", (long) time (NULL
));
2045 /* This, at least, is what Intel coff sets the values to.: */
2046 sprintf ((hdr
.ar_uid
), "%d", 0);
2047 sprintf ((hdr
.ar_gid
), "%d", 0);
2048 sprintf ((hdr
.ar_mode
), "%-7o", (unsigned) 0);
2049 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
2051 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
2052 if (((char *) (&hdr
))[i
] == '\0')
2053 (((char *) (&hdr
))[i
]) = ' ';
2055 /* Write the ar header for this item and the number of symbols */
2057 if (bfd_write ((PTR
) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
2058 != sizeof (struct ar_hdr
))
2061 bfd_write_bigendian_4byte_int (arch
, symbol_count
);
2063 /* Two passes, first write the file offsets for each symbol -
2064 remembering that each offset is on a two byte boundary. */
2066 /* Write out the file offset for the file associated with each
2067 symbol, and remember to keep the offsets padded out. */
2069 current
= arch
->archive_head
;
2071 while (current
!= (bfd
*) NULL
&& count
< symbol_count
)
2073 /* For each symbol which is used defined in this object, write out
2074 the object file's address in the archive */
2076 while (((bfd
*) (map
[count
]).pos
) == current
)
2078 bfd_write_bigendian_4byte_int (arch
, archive_member_file_ptr
);
2081 /* Add size of this archive entry */
2082 archive_member_file_ptr
+= (arelt_size (current
)
2083 + sizeof (struct ar_hdr
));
2084 /* remember aboout the even alignment */
2085 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2086 current
= current
->next
;
2089 /* now write the strings themselves */
2090 for (count
= 0; count
< symbol_count
; count
++)
2092 size_t len
= strlen (*map
[count
].name
) + 1;
2094 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
2098 /* The spec sez this should be a newline. But in order to be
2099 bug-compatible for arc960 we use a null. */
2102 if (bfd_write ("", 1, 1, arch
) != 1)