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 ((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;
874 bfd_has_map (abfd
) = true;
875 bfd_release (abfd
, (PTR
) raw_armap
);
879 bfd_release (abfd
, (PTR
) raw_armap
);
881 bfd_release (abfd
, (PTR
) (ardata
)->symdefs
);
885 /* This routine can handle either coff-style or bsd-style armaps.
886 Returns false on error, true otherwise */
889 bfd_slurp_armap (abfd
)
893 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
900 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
903 if (!strncmp (nextname
, "__.SYMDEF ", 16)
904 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
905 return do_slurp_bsd_armap (abfd
);
906 else if (!strncmp (nextname
, "/ ", 16))
907 return do_slurp_coff_armap (abfd
);
909 bfd_has_map (abfd
) = false;
913 /* Returns false on error, true otherwise */
914 /* flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
915 header is in a slightly different order and the map name is '/'.
916 This flavour is used by hp300hpux. */
918 #define HPUX_SYMDEF_COUNT_SIZE 2
921 bfd_slurp_bsd_armap_f2 (abfd
)
924 struct areltdata
*mapdata
;
926 unsigned int counter
;
927 bfd_byte
*raw_armap
, *rbase
;
928 struct artdata
*ardata
= bfd_ardata (abfd
);
930 unsigned int stringsize
;
932 int i
= bfd_read ((PTR
) nextname
, 1, 16, abfd
);
939 /* The archive has at least 16 bytes in it */
940 if (bfd_seek (abfd
, -16L, SEEK_CUR
) != 0)
943 if (!strncmp (nextname
, "__.SYMDEF ", 16)
944 || !strncmp (nextname
, "__.SYMDEF/ ", 16)) /* old Linux archives */
945 return do_slurp_bsd_armap (abfd
);
947 if (strncmp (nextname
, "/ ", 16))
949 bfd_has_map (abfd
) = false;
953 mapdata
= _bfd_snarf_ar_hdr (abfd
);
957 raw_armap
= (bfd_byte
*) bfd_zalloc (abfd
, mapdata
->parsed_size
);
958 if (raw_armap
== NULL
)
960 bfd_set_error (bfd_error_no_memory
);
962 bfd_release (abfd
, (PTR
) mapdata
);
966 if (bfd_read ((PTR
) raw_armap
, 1, mapdata
->parsed_size
, abfd
) !=
967 mapdata
->parsed_size
)
969 if (bfd_get_error () != bfd_error_system_call
)
970 bfd_set_error (bfd_error_malformed_archive
);
972 bfd_release (abfd
, (PTR
) raw_armap
);
976 ardata
->symdef_count
= bfd_h_get_16 (abfd
, (PTR
) raw_armap
);
978 if (ardata
->symdef_count
* BSD_SYMDEF_SIZE
979 > mapdata
->parsed_size
- HPUX_SYMDEF_COUNT_SIZE
)
981 /* Probably we're using the wrong byte ordering. */
982 bfd_set_error (bfd_error_wrong_format
);
988 stringsize
= bfd_h_get_32 (abfd
, raw_armap
+ HPUX_SYMDEF_COUNT_SIZE
);
989 /* skip sym count and string sz */
990 stringbase
= ((char *) raw_armap
991 + HPUX_SYMDEF_COUNT_SIZE
992 + BSD_STRING_COUNT_SIZE
);
993 rbase
= (bfd_byte
*) stringbase
+ stringsize
;
994 ardata
->symdefs
= (carsym
*) bfd_alloc (abfd
,
995 (ardata
->symdef_count
997 if (!ardata
->symdefs
)
999 bfd_set_error (bfd_error_no_memory
);
1003 for (counter
= 0, set
= ardata
->symdefs
;
1004 counter
< ardata
->symdef_count
;
1005 counter
++, set
++, rbase
+= BSD_SYMDEF_SIZE
)
1007 set
->name
= bfd_h_get_32 (abfd
, rbase
) + stringbase
;
1008 set
->file_offset
= bfd_h_get_32 (abfd
, rbase
+ BSD_SYMDEF_OFFSET_SIZE
);
1011 ardata
->first_file_filepos
= bfd_tell (abfd
);
1012 /* Pad to an even boundary if you have to */
1013 ardata
->first_file_filepos
+= (ardata
->first_file_filepos
) % 2;
1014 /* FIXME, we should provide some way to free raw_ardata when
1015 we are done using the strings from it. For now, it seems
1016 to be allocated on an obstack anyway... */
1017 bfd_has_map (abfd
) = true;
1021 /** Extended name table.
1023 Normally archives support only 14-character filenames.
1025 Intel has extended the format: longer names are stored in a special
1026 element (the first in the archive, or second if there is an armap);
1027 the name in the ar_hdr is replaced by <space><index into filename
1028 element>. Index is the P.R. of an int (decimal). Data General have
1029 extended the format by using the prefix // for the special element */
1031 /* Returns false on error, true otherwise */
1033 _bfd_slurp_extended_name_table (abfd
)
1037 struct areltdata
*namedata
;
1039 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1040 we probably don't want to return true. */
1041 if (bfd_read ((PTR
) nextname
, 1, 16, abfd
) == 16)
1044 if (bfd_seek (abfd
, (file_ptr
) - 16, SEEK_CUR
) != 0)
1047 if (strncmp (nextname
, "ARFILENAMES/ ", 16) != 0 &&
1048 strncmp (nextname
, "// ", 16) != 0)
1050 bfd_ardata (abfd
)->extended_names
= NULL
;
1054 namedata
= _bfd_snarf_ar_hdr (abfd
);
1055 if (namedata
== NULL
)
1058 bfd_ardata (abfd
)->extended_names
=
1059 bfd_zalloc (abfd
, namedata
->parsed_size
);
1060 if (bfd_ardata (abfd
)->extended_names
== NULL
)
1062 bfd_set_error (bfd_error_no_memory
);
1064 bfd_release (abfd
, (PTR
) namedata
);
1068 if (bfd_read ((PTR
) bfd_ardata (abfd
)->extended_names
, 1,
1069 namedata
->parsed_size
, abfd
) != namedata
->parsed_size
)
1071 if (bfd_get_error () != bfd_error_system_call
)
1072 bfd_set_error (bfd_error_malformed_archive
);
1073 bfd_release (abfd
, (PTR
) (bfd_ardata (abfd
)->extended_names
));
1074 bfd_ardata (abfd
)->extended_names
= NULL
;
1078 /* Since the archive is supposed to be printable if it contains
1079 text, the entries in the list are newline-padded, not null
1080 padded. In SVR4-style archives, the names also have a
1081 trailing '/'. We'll fix both problems here.. */
1083 char *temp
= bfd_ardata (abfd
)->extended_names
;
1084 char *limit
= temp
+ namedata
->parsed_size
;
1085 for (; temp
< limit
; ++temp
)
1086 if (*temp
== '\012')
1087 temp
[temp
[-1] == '/' ? -1 : 0] = '\0';
1090 /* Pad to an even boundary if you have to */
1091 bfd_ardata (abfd
)->first_file_filepos
= bfd_tell (abfd
);
1092 bfd_ardata (abfd
)->first_file_filepos
+=
1093 (bfd_ardata (abfd
)->first_file_filepos
) % 2;
1095 /* FIXME, we can't release namedata here because it was allocated
1096 below extended_names on the obstack... */
1097 /* bfd_release (abfd, namedata); */
1104 /* Return a copy of the stuff in the filename between any :]> and a
1114 first
= file
+ strlen (file
) - 1;
1117 while (first
!= file
)
1121 if (*first
== ':' || *first
== ']' || *first
== '>')
1130 copy
= malloc (last
- first
+ 1);
1134 memcpy (copy
, first
, last
- first
);
1135 copy
[last
- first
] = 0;
1145 CONST
char *filename
= strrchr (file
, '/');
1147 if (filename
!= (char *) NULL
)
1155 /* Build a BFD style extended name table. */
1158 _bfd_archive_bsd_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1161 bfd_size_type
*tablen
;
1164 *name
= "ARFILENAMES/";
1165 return _bfd_construct_extended_name_table (abfd
, false, tabloc
, tablen
);
1168 /* Build an SVR4 style extended name table. */
1171 _bfd_archive_coff_construct_extended_name_table (abfd
, tabloc
, tablen
, name
)
1174 bfd_size_type
*tablen
;
1178 return _bfd_construct_extended_name_table (abfd
, true, tabloc
, tablen
);
1181 /* Follows archive_head and produces an extended name table if
1182 necessary. Returns (in tabloc) a pointer to an extended name
1183 table, and in tablen the length of the table. If it makes an entry
1184 it clobbers the filename so that the element may be written without
1185 further massage. Returns true if it ran successfully, false if
1186 something went wrong. A successful return may still involve a
1187 zero-length tablen! */
1190 _bfd_construct_extended_name_table (abfd
, trailing_slash
, tabloc
, tablen
)
1192 boolean trailing_slash
;
1194 bfd_size_type
*tablen
;
1196 unsigned int maxname
= abfd
->xvec
->ar_max_namelen
;
1197 unsigned int total_namelen
= 0;
1203 /* Figure out how long the table should be */
1204 for (current
= abfd
->archive_head
; current
!= NULL
; current
= current
->next
)
1206 CONST
char *normal
= normalize (current
->filename
);
1207 unsigned int thislen
;
1211 bfd_set_error (bfd_error_no_memory
);
1214 thislen
= strlen (normal
);
1215 if (thislen
> maxname
)
1217 /* Add one to leave room for \n. */
1218 total_namelen
+= thislen
+ 1;
1221 /* Leave room for trailing slash. */
1227 if (total_namelen
== 0)
1230 *tabloc
= bfd_zalloc (abfd
, total_namelen
);
1231 if (*tabloc
== NULL
)
1233 bfd_set_error (bfd_error_no_memory
);
1237 *tablen
= total_namelen
;
1240 for (current
= abfd
->archive_head
; current
!= NULL
; current
=
1243 CONST
char *normal
= normalize (current
->filename
);
1244 unsigned int thislen
;
1248 bfd_set_error (bfd_error_no_memory
);
1251 thislen
= strlen (normal
);
1252 if (thislen
> maxname
)
1254 /* Works for now; may need to be re-engineered if we
1255 encounter an oddball archive format and want to
1256 generalise this hack. */
1257 struct ar_hdr
*hdr
= arch_hdr (current
);
1258 strcpy (strptr
, normal
);
1259 if (! trailing_slash
)
1260 strptr
[thislen
] = '\012';
1263 strptr
[thislen
] = '/';
1264 strptr
[thislen
+ 1] = '\012';
1266 hdr
->ar_name
[0] = ar_padchar (current
);
1267 /* We know there will always be enough room (one of the few
1268 cases where you may safely use sprintf). */
1269 sprintf ((hdr
->ar_name
) + 1, "%-d", (unsigned) (strptr
- *tabloc
));
1270 /* Kinda Kludgy. We should just use the returned value of
1271 sprintf but not all implementations get this right */
1273 char *temp
= hdr
->ar_name
+ 2;
1274 for (; temp
< hdr
->ar_name
+ maxname
; temp
++)
1278 strptr
+= thislen
+ 1;
1287 /** A couple of functions for creating ar_hdrs */
1289 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1290 make one. The filename must refer to a filename in the filesystem.
1291 The filename field of the ar_hdr will NOT be initialized */
1293 static struct areltdata
*
1294 bfd_ar_hdr_from_filesystem (abfd
, filename
)
1296 const char *filename
;
1299 struct areltdata
*ared
;
1303 if (stat (filename
, &status
) != 0)
1305 bfd_set_error (bfd_error_system_call
);
1309 ared
= (struct areltdata
*) bfd_zalloc (abfd
, sizeof (struct ar_hdr
) +
1310 sizeof (struct areltdata
));
1313 bfd_set_error (bfd_error_no_memory
);
1316 hdr
= (struct ar_hdr
*) (((char *) ared
) + sizeof (struct areltdata
));
1318 /* ar headers are space padded, not null padded! */
1319 memset ((PTR
) hdr
, ' ', sizeof (struct ar_hdr
));
1321 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1323 /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
1324 sprintf ((hdr
->ar_date
), "%-12ld", (long) status
.st_mtime
);
1325 sprintf ((hdr
->ar_uid
), "%ld", (long) status
.st_uid
);
1326 sprintf ((hdr
->ar_gid
), "%ld", (long) status
.st_gid
);
1327 sprintf ((hdr
->ar_mode
), "%-8o", (unsigned int) status
.st_mode
);
1328 sprintf ((hdr
->ar_size
), "%-10ld", (long) status
.st_size
);
1329 /* Correct for a lossage in sprintf whereby it null-terminates. I cannot
1330 understand how these C losers could design such a ramshackle bunch of
1332 temp
= (char *) hdr
;
1333 temp1
= temp
+ sizeof (struct ar_hdr
) - 2;
1334 for (; temp
< temp1
; temp
++)
1339 strncpy (hdr
->ar_fmag
, ARFMAG
, 2);
1340 ared
->parsed_size
= status
.st_size
;
1341 ared
->arch_header
= (char *) hdr
;
1346 /* This is magic required by the "ar" program. Since it's
1347 undocumented, it's undocumented. You may think that it would take
1348 a strong stomach to write this, and it does, but it takes even a
1349 stronger stomach to try to code around such a thing! */
1352 bfd_special_undocumented_glue (abfd
, filename
)
1356 struct areltdata
*ar_elt
= bfd_ar_hdr_from_filesystem (abfd
, filename
);
1359 return (struct ar_hdr
*) ar_elt
->arch_header
;
1363 /* Analogous to stat call */
1365 bfd_generic_stat_arch_elt (abfd
, buf
)
1372 if (abfd
->arelt_data
== NULL
)
1374 bfd_set_error (bfd_error_invalid_operation
);
1378 hdr
= arch_hdr (abfd
);
1380 #define foo(arelt, stelt, size) \
1381 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1382 if (aloser == hdr->arelt) return -1;
1384 foo (ar_date
, st_mtime
, 10);
1385 foo (ar_uid
, st_uid
, 10);
1386 foo (ar_gid
, st_gid
, 10);
1387 foo (ar_mode
, st_mode
, 8);
1389 buf
->st_size
= arch_eltdata (abfd
)->parsed_size
;
1395 bfd_dont_truncate_arname (abfd
, pathname
, arhdr
)
1397 CONST
char *pathname
;
1400 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1401 Fortunately ic960 users will never use that option. Fixing this
1402 is very hard; fortunately I know how to do it and will do so once
1403 intel's release is out the door. */
1405 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1407 CONST
char *filename
= normalize (pathname
);
1408 int maxlen
= ar_maxnamelen (abfd
);
1410 length
= strlen (filename
);
1412 if (length
<= maxlen
)
1413 memcpy (hdr
->ar_name
, filename
, length
);
1415 if (length
< maxlen
)
1416 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1420 bfd_bsd_truncate_arname (abfd
, pathname
, arhdr
)
1422 CONST
char *pathname
;
1425 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1427 CONST
char *filename
= strrchr (pathname
, '/');
1428 int maxlen
= ar_maxnamelen (abfd
);
1430 if (filename
== NULL
)
1431 filename
= pathname
;
1435 length
= strlen (filename
);
1437 if (length
<= maxlen
)
1438 memcpy (hdr
->ar_name
, filename
, length
);
1441 /* pathname: meet procrustes */
1442 memcpy (hdr
->ar_name
, filename
, maxlen
);
1446 if (length
< maxlen
)
1447 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1450 /* Store name into ar header. Truncates the name to fit.
1451 1> strip pathname to be just the basename.
1452 2> if it's short enuf to fit, stuff it in.
1453 3> If it doesn't end with .o, truncate it to fit
1454 4> truncate it before the .o, append .o, stuff THAT in. */
1456 /* This is what gnu ar does. It's better but incompatible with the
1460 bfd_gnu_truncate_arname (abfd
, pathname
, arhdr
)
1462 CONST
char *pathname
;
1465 struct ar_hdr
*hdr
= (struct ar_hdr
*) arhdr
;
1467 CONST
char *filename
= strrchr (pathname
, '/');
1468 int maxlen
= ar_maxnamelen (abfd
);
1470 if (filename
== NULL
)
1471 filename
= pathname
;
1475 length
= strlen (filename
);
1477 if (length
<= maxlen
)
1478 memcpy (hdr
->ar_name
, filename
, length
);
1480 { /* pathname: meet procrustes */
1481 memcpy (hdr
->ar_name
, filename
, maxlen
);
1482 if ((filename
[length
- 2] == '.') && (filename
[length
- 1] == 'o'))
1484 hdr
->ar_name
[maxlen
- 2] = '.';
1485 hdr
->ar_name
[maxlen
- 1] = 'o';
1491 (hdr
->ar_name
)[length
] = ar_padchar (abfd
);
1494 /* The BFD is open for write and has its format set to bfd_archive */
1497 _bfd_write_archive_contents (arch
)
1501 char *etable
= NULL
;
1502 bfd_size_type elength
= 0;
1503 const char *ename
= NULL
;
1504 boolean makemap
= bfd_has_map (arch
);
1505 boolean hasobjects
= false; /* if no .o's, don't bother to make a map */
1506 bfd_size_type wrote
;
1510 /* Verify the viability of all entries; if any of them live in the
1511 filesystem (as opposed to living in an archive open for input)
1512 then construct a fresh ar_hdr for them. */
1513 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1515 if (bfd_write_p (current
))
1517 bfd_set_error (bfd_error_invalid_operation
);
1520 if (!current
->arelt_data
)
1522 current
->arelt_data
=
1523 (PTR
) bfd_ar_hdr_from_filesystem (arch
, current
->filename
);
1524 if (!current
->arelt_data
)
1527 /* Put in the file name */
1528 BFD_SEND (arch
, _bfd_truncate_arname
, (arch
,
1530 (char *) arch_hdr (current
)));
1533 if (makemap
&& ! hasobjects
)
1534 { /* don't bother if we won't make a map! */
1535 if ((bfd_check_format (current
, bfd_object
))
1536 #if 0 /* FIXME -- these are not set correctly */
1537 && ((bfd_get_file_flags (current
) & HAS_SYMS
))
1544 if (!BFD_SEND (arch
, _bfd_construct_extended_name_table
,
1545 (arch
, &etable
, &elength
, &ename
)))
1548 if (bfd_seek (arch
, (file_ptr
) 0, SEEK_SET
) != 0)
1551 wrote
= bfd_write (BFD_GNU960_ARMAG (arch
), 1, SARMAG
, arch
);
1553 wrote
= bfd_write (ARMAG
, 1, SARMAG
, arch
);
1555 if (wrote
!= SARMAG
)
1558 if (makemap
&& hasobjects
)
1560 if (compute_and_write_armap (arch
, elength
) != true)
1568 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1569 strcpy (hdr
.ar_name
, ename
);
1570 sprintf (&(hdr
.ar_size
[0]), "%-10d", (int) elength
);
1571 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1572 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1573 if (((char *) (&hdr
))[i
] == '\0')
1574 (((char *) (&hdr
))[i
]) = ' ';
1575 if ((bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1576 != sizeof (struct ar_hdr
))
1577 || bfd_write (etable
, 1, elength
, arch
) != elength
)
1579 if ((elength
% 2) == 1)
1581 if (bfd_write ("\012", 1, 1, arch
) != 1)
1586 for (current
= arch
->archive_head
; current
; current
= current
->next
)
1588 char buffer
[DEFAULT_BUFFERSIZE
];
1589 unsigned int remaining
= arelt_size (current
);
1590 struct ar_hdr
*hdr
= arch_hdr (current
);
1592 /* write ar header */
1593 if (bfd_write ((char *) hdr
, 1, sizeof (*hdr
), arch
) != sizeof (*hdr
))
1595 if (bfd_seek (current
, (file_ptr
) 0, SEEK_SET
) != 0)
1599 unsigned int amt
= DEFAULT_BUFFERSIZE
;
1600 if (amt
> remaining
)
1603 if (bfd_read (buffer
, amt
, 1, current
) != amt
)
1605 if (bfd_get_error () != bfd_error_system_call
)
1606 bfd_set_error (bfd_error_malformed_archive
);
1609 if (bfd_write (buffer
, amt
, 1, arch
) != amt
)
1613 if ((arelt_size (current
) % 2) == 1)
1615 if (bfd_write ("\012", 1, 1, arch
) != 1)
1620 if (makemap
&& hasobjects
)
1622 /* Verify the timestamp in the archive file. If it would not be
1623 accepted by the linker, rewrite it until it would be. If
1624 anything odd happens, break out and just return. (The
1625 Berkeley linker checks the timestamp and refuses to read the
1626 table-of-contents if it is >60 seconds less than the file's
1627 modified-time. That painful hack requires this painful hack. */
1631 if (bfd_update_armap_timestamp (arch
))
1634 "Warning: writing archive was slow: rewriting timestamp\n");
1636 while (++tries
< 6);
1642 /* Note that the namidx for the first symbol is 0 */
1645 compute_and_write_armap (arch
, elength
)
1647 unsigned int elength
;
1649 char *first_name
= NULL
;
1651 file_ptr elt_no
= 0;
1652 struct orl
*map
= NULL
;
1653 int orl_max
= 1024; /* fine initial default */
1655 int stridx
= 0; /* string index */
1656 asymbol
**syms
= NULL
;
1660 /* Dunno if this is the best place for this info... */
1662 elength
+= sizeof (struct ar_hdr
);
1663 elength
+= elength
% 2;
1665 map
= (struct orl
*) malloc (orl_max
* sizeof (struct orl
));
1667 goto no_memory_return
;
1669 /* We put the symbol names on the arch obstack, and then discard
1671 first_name
= bfd_alloc (arch
, 1);
1672 if (first_name
== NULL
)
1673 goto no_memory_return
;
1675 /* Drop all the files called __.SYMDEF, we're going to make our
1677 while (arch
->archive_head
&&
1678 strcmp (arch
->archive_head
->filename
, "__.SYMDEF") == 0)
1679 arch
->archive_head
= arch
->archive_head
->next
;
1681 /* Map over each element */
1682 for (current
= arch
->archive_head
;
1683 current
!= (bfd
*) NULL
;
1684 current
= current
->next
, elt_no
++)
1686 if ((bfd_check_format (current
, bfd_object
) == true)
1687 && ((bfd_get_file_flags (current
) & HAS_SYMS
)))
1693 storage
= bfd_get_symtab_upper_bound (current
);
1699 if (storage
> syms_max
)
1704 syms
= (asymbol
**) malloc ((size_t) syms_max
);
1706 goto no_memory_return
;
1708 symcount
= bfd_canonicalize_symtab (current
, syms
);
1712 /* Now map over all the symbols, picking out the ones we want */
1713 for (src_count
= 0; src_count
< symcount
; src_count
++)
1715 flagword flags
= (syms
[src_count
])->flags
;
1716 asection
*sec
= syms
[src_count
]->section
;
1718 if ((flags
& BSF_GLOBAL
||
1720 flags
& BSF_INDIRECT
||
1721 bfd_is_com_section (sec
))
1722 && ! bfd_is_und_section (sec
))
1725 struct orl
*new_map
;
1727 /* This symbol will go into the archive header */
1728 if (orl_count
== orl_max
)
1731 new_map
= ((struct orl
*)
1733 orl_max
* sizeof (struct orl
)));
1734 if (new_map
== (struct orl
*) NULL
)
1735 goto no_memory_return
;
1740 namelen
= strlen (syms
[src_count
]->name
);
1741 map
[orl_count
].name
= ((char **)
1744 if (map
[orl_count
].name
== NULL
)
1745 goto no_memory_return
;
1746 *(map
[orl_count
].name
) = bfd_alloc (arch
, namelen
+ 1);
1747 if (*(map
[orl_count
].name
) == NULL
)
1748 goto no_memory_return
;
1749 strcpy (*(map
[orl_count
].name
), syms
[src_count
]->name
);
1750 (map
[orl_count
]).pos
= (file_ptr
) current
;
1751 (map
[orl_count
]).namidx
= stridx
;
1753 stridx
+= namelen
+ 1;
1759 /* Now ask the BFD to free up any cached information, so we
1760 don't fill all of memory with symbol tables. */
1761 if (! bfd_free_cached_info (current
))
1766 /* OK, now we have collected all the data, let's write them out */
1767 ret
= BFD_SEND (arch
, write_armap
,
1768 (arch
, elength
, map
, orl_count
, stridx
));
1774 if (first_name
!= NULL
)
1775 bfd_release (arch
, first_name
);
1780 bfd_set_error (bfd_error_no_memory
);
1787 if (first_name
!= NULL
)
1788 bfd_release (arch
, first_name
);
1794 bsd_write_armap (arch
, elength
, map
, orl_count
, stridx
)
1796 unsigned int elength
;
1798 unsigned int orl_count
;
1801 int padit
= stridx
& 1;
1802 unsigned int ranlibsize
= orl_count
* BSD_SYMDEF_SIZE
;
1803 unsigned int stringsize
= stridx
+ padit
;
1804 /* Include 8 bytes to store ranlibsize and stringsize in output. */
1805 unsigned int mapsize
= ranlibsize
+ stringsize
+ 8;
1807 bfd
*current
= arch
->archive_head
;
1808 bfd
*last_elt
= current
; /* last element arch seen */
1812 struct stat statbuf
;
1815 firstreal
= mapsize
+ elength
+ sizeof (struct ar_hdr
) + SARMAG
;
1817 stat (arch
->filename
, &statbuf
);
1818 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1819 sprintf (hdr
.ar_name
, RANLIBMAG
);
1820 /* Remember the timestamp, to keep it holy. But fudge it a little. */
1821 bfd_ardata (arch
)->armap_timestamp
= statbuf
.st_mtime
+ ARMAP_TIME_OFFSET
;
1822 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1823 + offsetof (struct ar_hdr
, ar_date
[0]));
1824 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1825 sprintf (hdr
.ar_uid
, "%d", getuid ());
1826 sprintf (hdr
.ar_gid
, "%d", getgid ());
1827 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
1828 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1829 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1830 if (((char *) (&hdr
))[i
] == '\0')
1831 (((char *) (&hdr
))[i
]) = ' ';
1832 if (bfd_write ((char *) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1833 != sizeof (struct ar_hdr
))
1835 bfd_h_put_32 (arch
, (bfd_vma
) ranlibsize
, temp
);
1836 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1839 for (count
= 0; count
< orl_count
; count
++)
1841 bfd_byte buf
[BSD_SYMDEF_SIZE
];
1843 if (((bfd
*) (map
[count
]).pos
) != last_elt
)
1847 firstreal
+= arelt_size (current
) + sizeof (struct ar_hdr
);
1848 firstreal
+= firstreal
% 2;
1849 current
= current
->next
;
1851 while (current
!= (bfd
*) (map
[count
]).pos
);
1852 } /* if new archive element */
1855 bfd_h_put_32 (arch
, map
[count
].namidx
, buf
);
1856 bfd_h_put_32 (arch
, firstreal
, buf
+ BSD_SYMDEF_OFFSET_SIZE
);
1857 if (bfd_write (buf
, BSD_SYMDEF_SIZE
, 1, arch
) != BSD_SYMDEF_SIZE
)
1861 /* now write the strings themselves */
1862 bfd_h_put_32 (arch
, stringsize
, temp
);
1863 if (bfd_write (temp
, 1, sizeof (temp
), arch
) != sizeof (temp
))
1865 for (count
= 0; count
< orl_count
; count
++)
1867 size_t len
= strlen (*map
[count
].name
) + 1;
1869 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
1873 /* The spec sez this should be a newline. But in order to be
1874 bug-compatible for sun's ar we use a null. */
1877 if (bfd_write ("", 1, 1, arch
) != 1)
1884 /* At the end of archive file handling, update the timestamp in the
1885 file, so the linker will accept it.
1887 Return true if the timestamp was OK, or an unusual problem happened.
1888 Return false if we updated the timestamp. */
1891 _bfd_archive_bsd_update_armap_timestamp (arch
)
1894 struct stat archstat
;
1898 /* Flush writes, get last-write timestamp from file, and compare it
1899 to the timestamp IN the file. */
1901 if (bfd_stat (arch
, &archstat
) == -1)
1903 perror ("Reading archive file mod timestamp");
1904 return true; /* Can't read mod time for some reason */
1906 if (archstat
.st_mtime
<= bfd_ardata (arch
)->armap_timestamp
)
1907 return true; /* OK by the linker's rules */
1909 /* Update the timestamp. */
1910 bfd_ardata (arch
)->armap_timestamp
= archstat
.st_mtime
+ ARMAP_TIME_OFFSET
;
1912 /* Prepare an ASCII version suitable for writing. */
1913 memset (hdr
.ar_date
, 0, sizeof (hdr
.ar_date
));
1914 sprintf (hdr
.ar_date
, "%ld", bfd_ardata (arch
)->armap_timestamp
);
1915 for (i
= 0; i
< sizeof (hdr
.ar_date
); i
++)
1916 if (hdr
.ar_date
[i
] == '\0')
1917 (hdr
.ar_date
)[i
] = ' ';
1919 /* Write it into the file. */
1920 bfd_ardata (arch
)->armap_datepos
= (SARMAG
1921 + offsetof (struct ar_hdr
, ar_date
[0]));
1922 if (bfd_seek (arch
, bfd_ardata (arch
)->armap_datepos
, SEEK_SET
) != 0
1923 || (bfd_write (hdr
.ar_date
, sizeof (hdr
.ar_date
), 1, arch
)
1924 != sizeof (hdr
.ar_date
)))
1926 /* FIXME: bfd can't call perror. */
1927 perror ("Writing updated armap timestamp");
1928 return true; /* Some error while writing */
1931 return false; /* We updated the timestamp successfully. */
1934 /* A coff armap looks like :
1936 struct ar_hdr with name = '/'
1938 offset of file for symbol 0
1939 offset of file for symbol 1
1941 offset of file for symbol n-1
1949 coff_write_armap (arch
, elength
, map
, symbol_count
, stridx
)
1951 unsigned int elength
;
1953 unsigned int symbol_count
;
1956 /* The size of the ranlib is the number of exported symbols in the
1957 archive * the number of bytes in a int, + an int for the count */
1958 unsigned int ranlibsize
= (symbol_count
* 4) + 4;
1959 unsigned int stringsize
= stridx
;
1960 unsigned int mapsize
= stringsize
+ ranlibsize
;
1961 file_ptr archive_member_file_ptr
;
1962 bfd
*current
= arch
->archive_head
;
1966 int padit
= mapsize
& 1;
1971 /* work out where the first object file will go in the archive */
1972 archive_member_file_ptr
= (mapsize
1974 + sizeof (struct ar_hdr
)
1977 memset ((char *) (&hdr
), 0, sizeof (struct ar_hdr
));
1978 hdr
.ar_name
[0] = '/';
1979 sprintf (hdr
.ar_size
, "%-10d", (int) mapsize
);
1980 sprintf (hdr
.ar_date
, "%ld", (long) time (NULL
));
1981 /* This, at least, is what Intel coff sets the values to.: */
1982 sprintf ((hdr
.ar_uid
), "%d", 0);
1983 sprintf ((hdr
.ar_gid
), "%d", 0);
1984 sprintf ((hdr
.ar_mode
), "%-7o", (unsigned) 0);
1985 strncpy (hdr
.ar_fmag
, ARFMAG
, 2);
1987 for (i
= 0; i
< sizeof (struct ar_hdr
); i
++)
1988 if (((char *) (&hdr
))[i
] == '\0')
1989 (((char *) (&hdr
))[i
]) = ' ';
1991 /* Write the ar header for this item and the number of symbols */
1993 if (bfd_write ((PTR
) &hdr
, 1, sizeof (struct ar_hdr
), arch
)
1994 != sizeof (struct ar_hdr
))
1997 bfd_write_bigendian_4byte_int (arch
, symbol_count
);
1999 /* Two passes, first write the file offsets for each symbol -
2000 remembering that each offset is on a two byte boundary. */
2002 /* Write out the file offset for the file associated with each
2003 symbol, and remember to keep the offsets padded out. */
2005 current
= arch
->archive_head
;
2007 while (current
!= (bfd
*) NULL
&& count
< symbol_count
)
2009 /* For each symbol which is used defined in this object, write out
2010 the object file's address in the archive */
2012 while (((bfd
*) (map
[count
]).pos
) == current
)
2014 bfd_write_bigendian_4byte_int (arch
, archive_member_file_ptr
);
2017 /* Add size of this archive entry */
2018 archive_member_file_ptr
+= (arelt_size (current
)
2019 + sizeof (struct ar_hdr
));
2020 /* remember aboout the even alignment */
2021 archive_member_file_ptr
+= archive_member_file_ptr
% 2;
2022 current
= current
->next
;
2025 /* now write the strings themselves */
2026 for (count
= 0; count
< symbol_count
; count
++)
2028 size_t len
= strlen (*map
[count
].name
) + 1;
2030 if (bfd_write (*map
[count
].name
, 1, len
, arch
) != len
)
2034 /* The spec sez this should be a newline. But in order to be
2035 bug-compatible for arc960 we use a null. */
2038 if (bfd_write ("", 1, 1, arch
) != 1)