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 boolean bfd_construct_extended_name_table PARAMS ((bfd *abfd,
182 static struct areltdata *bfd_ar_hdr_from_filesystem PARAMS ((bfd *abfd,
184 static boolean compute_and_write_armap PARAMS ((bfd *arch,
185 unsigned int elength));
188 _bfd_generic_mkarchive (abfd)
191 abfd->tdata.aout_ar_data = ((struct artdata *)
192 bfd_zalloc (abfd, sizeof (struct artdata)));
194 if (bfd_ardata (abfd) == NULL)
196 bfd_set_error (bfd_error_no_memory);
200 bfd_ardata (abfd)->cache = NULL;
201 bfd_ardata (abfd)->archive_head = NULL;
202 bfd_ardata (abfd)->symdefs = NULL;
203 bfd_ardata (abfd)->extended_names = NULL;
204 bfd_ardata (abfd)->tdata = NULL;
214 symindex bfd_get_next_mapent(bfd *abfd, symindex previous, carsym **sym);
217 Step through archive @var{abfd}'s symbol table (if it
218 has one). Successively update @var{sym} with the next symbol's
219 information, returning that symbol's (internal) index into the
222 Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
223 the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
226 A <<carsym>> is a canonical archive symbol. The only
227 user-visible element is its name, a null-terminated string.
231 bfd_get_next_mapent (abfd, prev, entry)
236 if (!bfd_has_map (abfd))
238 bfd_set_error (bfd_error_invalid_operation);
239 return BFD_NO_MORE_SYMBOLS;
242 if (prev == BFD_NO_MORE_SYMBOLS)
244 else if (++prev >= bfd_ardata (abfd)->symdef_count)
245 return BFD_NO_MORE_SYMBOLS;
247 *entry = (bfd_ardata (abfd)->symdefs + prev);
251 /* To be called by backends only */
254 _bfd_create_empty_archive_element_shell (obfd)
259 nbfd = _bfd_new_bfd_contained_in (obfd);
262 bfd_set_error (bfd_error_no_memory);
273 boolean bfd_set_archive_head(bfd *output, bfd *new_head);
276 Set the head of the chain of
277 BFDs contained in the archive @var{output} to @var{new_head}.
281 bfd_set_archive_head (output_archive, new_head)
286 output_archive->archive_head = new_head;
291 _bfd_look_for_bfd_in_cache (arch_bfd, filepos)
295 struct ar_cache *current;
297 for (current = bfd_ardata (arch_bfd)->cache; current != NULL;
298 current = current->next)
299 if (current->ptr == filepos)
300 return current->arelt;
305 /* Kind of stupid to call cons for each one, but we don't do too many */
307 _bfd_add_bfd_to_archive_cache (arch_bfd, filepos, new_elt)
308 bfd *arch_bfd, *new_elt;
311 struct ar_cache *new_cache = ((struct ar_cache *)
312 bfd_zalloc (arch_bfd,
313 sizeof (struct ar_cache)));
315 if (new_cache == NULL)
317 bfd_set_error (bfd_error_no_memory);
321 new_cache->ptr = filepos;
322 new_cache->arelt = new_elt;
323 new_cache->next = (struct ar_cache *) NULL;
324 if (bfd_ardata (arch_bfd)->cache == NULL)
325 bfd_ardata (arch_bfd)->cache = new_cache;
328 struct ar_cache *current = bfd_ardata (arch_bfd)->cache;
330 while (current->next != NULL)
331 current = current->next;
332 current->next = new_cache;
338 /* The name begins with space. Hence the rest of the name is an index into
342 get_extended_arelt_filename (arch, name)
346 unsigned long index = 0;
348 /* Should extract string so that I can guarantee not to overflow into
349 the next region, but I'm too lazy. */
351 /* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
352 index = strtol (name + 1, NULL, 10);
355 bfd_set_error (bfd_error_malformed_archive);
359 return bfd_ardata (arch)->extended_names + index;
362 /* This functions reads an arch header and returns an areltdata pointer, or
365 Presumes the file pointer is already in the right place (ie pointing
366 to the ar_hdr in the file). Moves the file pointer; on success it
367 should be pointing to the front of the file contents; on failure it
368 could have been moved arbitrarily.
372 _bfd_snarf_ar_hdr (abfd)
380 char *hdrp = (char *) &hdr;
381 unsigned int parsed_size;
382 struct areltdata *ared;
383 char *filename = NULL;
384 unsigned int namelen = 0;
385 unsigned int allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
388 if (bfd_read ((PTR) hdrp, 1, sizeof (struct ar_hdr), abfd)
389 != sizeof (struct ar_hdr))
391 if (bfd_get_error () != bfd_error_system_call)
392 bfd_set_error (bfd_error_no_more_archived_files);
395 if (strncmp (hdr.ar_fmag, ARFMAG, 2))
397 bfd_set_error (bfd_error_malformed_archive);
402 parsed_size = strtol (hdr.ar_size, NULL, 10);
405 bfd_set_error (bfd_error_malformed_archive);
409 /* Extract the filename from the archive - there are two ways to
410 specify an extendend name table, either the first char of the
411 name is a space, or it's a slash. */
412 if ((hdr.ar_name[0] == '/'
413 || (hdr.ar_name[0] == ' '
414 && memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
415 && bfd_ardata (abfd)->extended_names != NULL)
417 filename = get_extended_arelt_filename (abfd, hdr.ar_name);
418 if (filename == NULL)
420 bfd_set_error (bfd_error_malformed_archive);
424 /* BSD4.4-style long filename.
425 Only implemented for reading, so far! */
426 else if (hdr.ar_name[0] == '#' && hdr.ar_name[1] == '1'
427 && hdr.ar_name[2] == '/' && isdigit (hdr.ar_name[3]))
429 /* BSD-4.4 extended name */
430 namelen = atoi (&hdr.ar_name[3]);
431 allocsize += namelen + 1;
432 parsed_size -= namelen;
434 allocptr = bfd_zalloc (abfd, allocsize);
435 if (allocptr == NULL)
437 bfd_set_error (bfd_error_no_memory);
441 + sizeof (struct areltdata)
442 + sizeof (struct ar_hdr));
443 if (bfd_read (filename, 1, namelen, abfd) != namelen)
445 if (bfd_get_error () != bfd_error_system_call)
446 bfd_set_error (bfd_error_no_more_archived_files);
449 filename[namelen] = '\0';
453 /* We judge the end of the name by looking for '/' or ' '.
454 Note: The SYSV format (terminated by '/') allows embedded
455 spaces, so only look for ' ' if we don't find '/'. */
458 while (hdr.ar_name[namelen] != '\0' &&
459 hdr.ar_name[namelen] != '/')
462 if (namelen == (unsigned) ar_maxnamelen (abfd))
465 while (hdr.ar_name[namelen] != ' '
466 && namelen < (unsigned) ar_maxnamelen (abfd))
472 allocsize += namelen + 1;
477 allocptr = bfd_zalloc (abfd, allocsize);
478 if (allocptr == NULL)
480 bfd_set_error (bfd_error_no_memory);
485 ared = (struct areltdata *) allocptr;
487 ared->arch_header = allocptr + sizeof (struct areltdata);
488 memcpy ((char *) ared->arch_header, (char *) &hdr, sizeof (struct ar_hdr));
489 ared->parsed_size = parsed_size;
491 if (filename != NULL)
492 ared->filename = filename;
495 ared->filename = allocptr + (sizeof (struct areltdata) +
496 sizeof (struct ar_hdr));
498 memcpy (ared->filename, hdr.ar_name, namelen);
499 ared->filename[namelen] = '\0';
505 /* This is an internal function; it's mainly used when indexing
506 through the archive symbol table, but also used to get the next
507 element, since it handles the bookkeeping so nicely for us. */
510 _bfd_get_elt_at_filepos (archive, filepos)
514 struct areltdata *new_areldata;
517 n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
521 if (0 > bfd_seek (archive, filepos, SEEK_SET))
524 if ((new_areldata = _bfd_snarf_ar_hdr (archive)) == NULL)
527 n_nfd = _bfd_create_empty_archive_element_shell (archive);
530 bfd_release (archive, (PTR) new_areldata);
534 n_nfd->origin = bfd_tell (archive);
535 n_nfd->arelt_data = (PTR) new_areldata;
536 n_nfd->filename = new_areldata->filename;
538 if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
542 bfd_release (archive, (PTR) n_nfd);
543 bfd_release (archive, (PTR) new_areldata);
552 bfd *bfd_get_elt_at_index(bfd *archive, int index);
555 Return the BFD which is referenced by the symbol in @var{archive}
556 indexed by @var{index}. @var{index} should have been returned by
557 <<bfd_get_next_mapent>> (q.v.).
561 bfd_get_elt_at_index (abfd, index)
567 entry = bfd_ardata (abfd)->symdefs + index;
568 return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
573 bfd_openr_next_archived_file
576 bfd *bfd_openr_next_archived_file(bfd *archive, bfd *previous);
579 Provided a BFD, @var{archive}, containing an archive and NULL, open
580 an input BFD on the first contained element and returns that.
581 Subsequent calls should pass
582 the archive and the previous return value to return a created
583 BFD to the next contained element. NULL is returned when there
589 bfd_openr_next_archived_file (archive, last_file)
593 if ((bfd_get_format (archive) != bfd_archive) ||
594 (archive->direction == write_direction))
596 bfd_set_error (bfd_error_invalid_operation);
600 return BFD_SEND (archive,
601 openr_next_archived_file,
607 bfd_generic_openr_next_archived_file (archive, last_file)
614 filestart = bfd_ardata (archive)->first_file_filepos;
617 unsigned int size = arelt_size (last_file);
618 /* Pad to an even boundary...
619 Note that last_file->origin can be odd in the case of
620 BSD-4.4-style element with a long odd size. */
621 filestart = last_file->origin + size;
622 filestart += filestart % 2;
625 return _bfd_get_elt_at_filepos (archive, filestart);
630 bfd_generic_archive_p (abfd)
633 char armag[SARMAG + 1];
635 if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG)
637 if (bfd_get_error () != bfd_error_system_call)
638 bfd_set_error (bfd_error_wrong_format);
643 if (strncmp (armag, BFD_GNU960_ARMAG (abfd), SARMAG) != 0)
646 if (strncmp (armag, ARMAG, SARMAG) != 0 &&
647 strncmp (armag, ARMAGB, SARMAG) != 0)
651 /* We are setting bfd_ardata(abfd) here, but since bfd_ardata
652 involves a cast, we can't do it as the left operand of assignment. */
653 abfd->tdata.aout_ar_data = ((struct artdata *)
654 bfd_zalloc (abfd, sizeof (struct artdata)));
656 if (bfd_ardata (abfd) == NULL)
658 bfd_set_error (bfd_error_no_memory);
662 bfd_ardata (abfd)->first_file_filepos = SARMAG;
663 bfd_ardata (abfd)->cache = NULL;
664 bfd_ardata (abfd)->archive_head = NULL;
665 bfd_ardata (abfd)->symdefs = NULL;
666 bfd_ardata (abfd)->extended_names = NULL;
667 bfd_ardata (abfd)->tdata = NULL;
669 if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd)))
671 bfd_release (abfd, bfd_ardata (abfd));
672 abfd->tdata.aout_ar_data = NULL;
676 if (!BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
678 bfd_release (abfd, bfd_ardata (abfd));
679 abfd->tdata.aout_ar_data = NULL;
686 /* Some constants for a 32 bit BSD archive structure. We do not
687 support 64 bit archives presently; so far as I know, none actually
688 exist. Supporting them would require changing these constants, and
689 changing some bfd_h_get_32 to bfd_h_get_64. */
691 /* The size of an external symdef structure. */
692 #define BSD_SYMDEF_SIZE 8
694 /* The offset from the start of a symdef structure to the file offset. */
695 #define BSD_SYMDEF_OFFSET_SIZE 4
697 /* The size of the symdef count. */
698 #define BSD_SYMDEF_COUNT_SIZE 4
700 /* The size of the string count. */
701 #define BSD_STRING_COUNT_SIZE 4
703 /* Returns false on error, true otherwise */
706 do_slurp_bsd_armap (abfd)
709 struct areltdata *mapdata;
710 unsigned int counter;
711 bfd_byte *raw_armap, *rbase;
712 struct artdata *ardata = bfd_ardata (abfd);
714 unsigned int parsed_size;
717 mapdata = _bfd_snarf_ar_hdr (abfd);
720 parsed_size = mapdata->parsed_size;
721 bfd_release (abfd, (PTR) mapdata); /* Don't need it any more. */
723 raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
724 if (raw_armap == (bfd_byte *) NULL)
726 bfd_set_error (bfd_error_no_memory);
730 if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size)
732 if (bfd_get_error () != bfd_error_system_call)
733 bfd_set_error (bfd_error_malformed_archive);
735 bfd_release (abfd, (PTR) raw_armap);
739 ardata->symdef_count = bfd_h_get_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
741 if (ardata->symdef_count * BSD_SYMDEF_SIZE >
742 parsed_size - BSD_SYMDEF_COUNT_SIZE)
744 /* Probably we're using the wrong byte ordering. */
745 bfd_set_error (bfd_error_wrong_format);
750 rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
751 stringbase = ((char *) rbase
752 + ardata->symdef_count * BSD_SYMDEF_SIZE
753 + BSD_STRING_COUNT_SIZE);
754 ardata->symdefs = (carsym *) bfd_alloc (abfd,
755 (ardata->symdef_count
757 if (!ardata->symdefs)
759 bfd_set_error (bfd_error_no_memory);
763 for (counter = 0, set = ardata->symdefs;
764 counter < ardata->symdef_count;
765 counter++, set++, rbase += BSD_SYMDEF_SIZE)
767 set->name = bfd_h_get_32 (abfd, rbase) + stringbase;
768 set->file_offset = bfd_h_get_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
771 ardata->first_file_filepos = bfd_tell (abfd);
772 /* Pad to an even boundary if you have to */
773 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
774 /* FIXME, we should provide some way to free raw_ardata when
775 we are done using the strings from it. For now, it seems
776 to be allocated on an obstack anyway... */
777 bfd_has_map (abfd) = true;
781 /* Returns false on error, true otherwise */
783 do_slurp_coff_armap (abfd)
786 struct areltdata *mapdata;
787 int *raw_armap, *rawptr;
788 struct artdata *ardata = bfd_ardata (abfd);
790 unsigned int stringsize;
791 unsigned int parsed_size;
793 unsigned int nsymz; /* Number of symbols in armap. */
794 bfd_vma (*swap) PARAMS ((const bfd_byte *));
795 char int_buf[sizeof (long)];
796 unsigned int carsym_size, ptrsize, i;
798 mapdata = _bfd_snarf_ar_hdr (abfd);
801 parsed_size = mapdata->parsed_size;
802 bfd_release (abfd, (PTR) mapdata); /* Don't need it any more. */
804 if (bfd_read ((PTR) int_buf, 1, 4, abfd) != 4)
806 if (bfd_get_error () != bfd_error_system_call)
807 bfd_set_error (bfd_error_malformed_archive);
810 /* It seems that all numeric information in a coff archive is always
811 in big endian format, nomatter the host or target. */
813 nsymz = bfd_getb32 ((PTR) int_buf);
814 stringsize = parsed_size - (4 * nsymz) - 4;
817 /* ... except that some archive formats are broken, and it may be our
818 fault - the i960 little endian coff sometimes has big and sometimes
819 little, because our tools changed. Here's a horrible hack to clean
822 if (stringsize > 0xfffff)
824 /* This looks dangerous, let's do it the other way around */
825 nsymz = bfd_getl32 ((PTR) int_buf);
826 stringsize = parsed_size - (4 * nsymz) - 4;
831 /* The coff armap must be read sequentially. So we construct a
832 bsd-style one in core all at once, for simplicity. */
834 carsym_size = (nsymz * sizeof (carsym));
835 ptrsize = (4 * nsymz);
837 ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1);
838 if (ardata->symdefs == NULL)
840 bfd_set_error (bfd_error_no_memory);
843 carsyms = ardata->symdefs;
844 stringbase = ((char *) ardata->symdefs) + carsym_size;
846 /* Allocate and read in the raw offsets. */
847 raw_armap = (int *) bfd_alloc (abfd, ptrsize);
848 if (raw_armap == NULL)
850 bfd_set_error (bfd_error_no_memory);
851 goto release_symdefs;
853 if (bfd_read ((PTR) raw_armap, 1, ptrsize, abfd) != ptrsize
854 || bfd_read ((PTR) stringbase, 1, stringsize, abfd) != stringsize)
856 if (bfd_get_error () != bfd_error_system_call)
857 bfd_set_error (bfd_error_malformed_archive);
858 goto release_raw_armap;
861 /* OK, build the carsyms */
862 for (i = 0; i < nsymz; i++)
864 rawptr = raw_armap + i;
865 carsyms->file_offset = swap ((PTR) rawptr);
866 carsyms->name = stringbase;
867 stringbase += strlen (stringbase) + 1;
872 ardata->symdef_count = nsymz;
873 ardata->first_file_filepos = bfd_tell (abfd);
874 /* Pad to an even boundary if you have to */
875 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
877 bfd_has_map (abfd) = true;
878 bfd_release (abfd, (PTR) raw_armap);
882 bfd_release (abfd, (PTR) raw_armap);
884 bfd_release (abfd, (PTR) (ardata)->symdefs);
888 /* This routine can handle either coff-style or bsd-style armaps.
889 Returns false on error, true otherwise */
892 bfd_slurp_armap (abfd)
896 int i = bfd_read ((PTR) nextname, 1, 16, abfd);
903 if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
906 if (!strncmp (nextname, "__.SYMDEF ", 16)
907 || !strncmp (nextname, "__.SYMDEF/ ", 16)) /* old Linux archives */
908 return do_slurp_bsd_armap (abfd);
909 else if (!strncmp (nextname, "/ ", 16))
910 return do_slurp_coff_armap (abfd);
912 bfd_has_map (abfd) = false;
916 /* Returns false on error, true otherwise */
917 /* flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
918 header is in a slightly different order and the map name is '/'.
919 This flavour is used by hp300hpux. */
921 #define HPUX_SYMDEF_COUNT_SIZE 2
924 bfd_slurp_bsd_armap_f2 (abfd)
927 struct areltdata *mapdata;
929 unsigned int counter;
930 bfd_byte *raw_armap, *rbase;
931 struct artdata *ardata = bfd_ardata (abfd);
933 unsigned int stringsize;
935 int i = bfd_read ((PTR) nextname, 1, 16, abfd);
942 /* The archive has at least 16 bytes in it */
943 if (bfd_seek (abfd, -16L, SEEK_CUR) != 0)
946 if (!strncmp (nextname, "__.SYMDEF ", 16)
947 || !strncmp (nextname, "__.SYMDEF/ ", 16)) /* old Linux archives */
948 return do_slurp_bsd_armap (abfd);
950 if (strncmp (nextname, "/ ", 16))
952 bfd_has_map (abfd) = false;
956 mapdata = _bfd_snarf_ar_hdr (abfd);
960 raw_armap = (bfd_byte *) bfd_zalloc (abfd, mapdata->parsed_size);
961 if (raw_armap == NULL)
963 bfd_set_error (bfd_error_no_memory);
965 bfd_release (abfd, (PTR) mapdata);
969 if (bfd_read ((PTR) raw_armap, 1, mapdata->parsed_size, abfd) !=
970 mapdata->parsed_size)
972 if (bfd_get_error () != bfd_error_system_call)
973 bfd_set_error (bfd_error_malformed_archive);
975 bfd_release (abfd, (PTR) raw_armap);
979 ardata->symdef_count = bfd_h_get_16 (abfd, (PTR) raw_armap);
981 if (ardata->symdef_count * BSD_SYMDEF_SIZE
982 > mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE)
984 /* Probably we're using the wrong byte ordering. */
985 bfd_set_error (bfd_error_wrong_format);
991 stringsize = bfd_h_get_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
992 /* skip sym count and string sz */
993 stringbase = ((char *) raw_armap
994 + HPUX_SYMDEF_COUNT_SIZE
995 + BSD_STRING_COUNT_SIZE);
996 rbase = (bfd_byte *) stringbase + stringsize;
997 ardata->symdefs = (carsym *) bfd_alloc (abfd,
998 (ardata->symdef_count
1000 if (!ardata->symdefs)
1002 bfd_set_error (bfd_error_no_memory);
1006 for (counter = 0, set = ardata->symdefs;
1007 counter < ardata->symdef_count;
1008 counter++, set++, rbase += BSD_SYMDEF_SIZE)
1010 set->name = bfd_h_get_32 (abfd, rbase) + stringbase;
1011 set->file_offset = bfd_h_get_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
1014 ardata->first_file_filepos = bfd_tell (abfd);
1015 /* Pad to an even boundary if you have to */
1016 ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
1017 /* FIXME, we should provide some way to free raw_ardata when
1018 we are done using the strings from it. For now, it seems
1019 to be allocated on an obstack anyway... */
1020 bfd_has_map (abfd) = true;
1024 /** Extended name table.
1026 Normally archives support only 14-character filenames.
1028 Intel has extended the format: longer names are stored in a special
1029 element (the first in the archive, or second if there is an armap);
1030 the name in the ar_hdr is replaced by <space><index into filename
1031 element>. Index is the P.R. of an int (decimal). Data General have
1032 extended the format by using the prefix // for the special element */
1034 /* Returns false on error, true otherwise */
1036 _bfd_slurp_extended_name_table (abfd)
1040 struct areltdata *namedata;
1042 /* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
1043 we probably don't want to return true. */
1044 if (bfd_read ((PTR) nextname, 1, 16, abfd) == 16)
1047 if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
1050 if (strncmp (nextname, "ARFILENAMES/ ", 16) != 0 &&
1051 strncmp (nextname, "// ", 16) != 0)
1053 bfd_ardata (abfd)->extended_names = NULL;
1057 namedata = _bfd_snarf_ar_hdr (abfd);
1058 if (namedata == NULL)
1061 bfd_ardata (abfd)->extended_names =
1062 bfd_zalloc (abfd, namedata->parsed_size);
1063 if (bfd_ardata (abfd)->extended_names == NULL)
1065 bfd_set_error (bfd_error_no_memory);
1067 bfd_release (abfd, (PTR) namedata);
1071 if (bfd_read ((PTR) bfd_ardata (abfd)->extended_names, 1,
1072 namedata->parsed_size, abfd) != namedata->parsed_size)
1074 if (bfd_get_error () != bfd_error_system_call)
1075 bfd_set_error (bfd_error_malformed_archive);
1076 bfd_release (abfd, (PTR) (bfd_ardata (abfd)->extended_names));
1077 bfd_ardata (abfd)->extended_names = NULL;
1081 /* Since the archive is supposed to be printable if it contains
1082 text, the entries in the list are newline-padded, not null
1083 padded. In SVR4-style archives, the names also have a
1084 trailing '/'. We'll fix both problems here.. */
1086 char *temp = bfd_ardata (abfd)->extended_names;
1087 char *limit = temp + namedata->parsed_size;
1088 for (; temp < limit; ++temp)
1089 if (*temp == '\012')
1090 temp[temp[-1] == '/' ? -1 : 0] = '\0';
1093 /* Pad to an even boundary if you have to */
1094 bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
1095 bfd_ardata (abfd)->first_file_filepos +=
1096 (bfd_ardata (abfd)->first_file_filepos) % 2;
1098 /* FIXME, we can't release namedata here because it was allocated
1099 below extended_names on the obstack... */
1100 /* bfd_release (abfd, namedata); */
1107 /* Return a copy of the stuff in the filename between any :]> and a
1117 first = file + strlen (file) - 1;
1120 while (first != file)
1124 if (*first == ':' || *first == ']' || *first == '>')
1133 copy = malloc (last - first + 1);
1137 memcpy (copy, first, last - first);
1138 copy[last - first] = 0;
1148 CONST char *filename = strrchr (file, '/');
1150 if (filename != (char *) NULL)
1158 /* Follows archive_head and produces an extended name table if
1159 necessary. Returns (in tabloc) a pointer to an extended name
1160 table, and in tablen the length of the table. If it makes an entry
1161 it clobbers the filename so that the element may be written without
1162 further massage. Returns true if it ran successfully, false if
1163 something went wrong. A successful return may still involve a
1164 zero-length tablen! */
1167 bfd_construct_extended_name_table (abfd, tabloc, tablen)
1170 unsigned int *tablen;
1172 unsigned int maxname = abfd->xvec->ar_max_namelen;
1173 unsigned int total_namelen = 0;
1179 /* Figure out how long the table should be */
1180 for (current = abfd->archive_head; current != NULL; current = current->next)
1182 CONST char *normal = normalize (current->filename);
1183 unsigned int thislen;
1187 bfd_set_error (bfd_error_no_memory);
1190 thislen = strlen (normal);
1191 if (thislen > maxname)
1192 total_namelen += thislen + 1; /* leave room for \n */
1195 if (total_namelen == 0)
1198 *tabloc = bfd_zalloc (abfd, total_namelen);
1199 if (*tabloc == NULL)
1201 bfd_set_error (bfd_error_no_memory);
1205 *tablen = total_namelen;
1208 for (current = abfd->archive_head; current != NULL; current =
1211 CONST char *normal = normalize (current->filename);
1212 unsigned int thislen;
1216 bfd_set_error (bfd_error_no_memory);
1219 thislen = strlen (normal);
1220 if (thislen > maxname)
1222 /* Works for now; may need to be re-engineered if we
1223 encounter an oddball archive format and want to
1224 generalise this hack. */
1225 struct ar_hdr *hdr = arch_hdr (current);
1226 strcpy (strptr, normal);
1227 strptr[thislen] = '\012';
1228 hdr->ar_name[0] = ar_padchar (current);
1229 /* We know there will always be enough room (one of the few
1230 cases where you may safely use sprintf). */
1231 sprintf ((hdr->ar_name) + 1, "%-d", (unsigned) (strptr - *tabloc));
1232 /* Kinda Kludgy. We should just use the returned value of
1233 sprintf but not all implementations get this right */
1235 char *temp = hdr->ar_name + 2;
1236 for (; temp < hdr->ar_name + maxname; temp++)
1240 strptr += thislen + 1;
1247 /** A couple of functions for creating ar_hdrs */
1249 /* Takes a filename, returns an arelt_data for it, or NULL if it can't
1250 make one. The filename must refer to a filename in the filesystem.
1251 The filename field of the ar_hdr will NOT be initialized */
1253 static struct areltdata *
1254 bfd_ar_hdr_from_filesystem (abfd, filename)
1256 const char *filename;
1259 struct areltdata *ared;
1263 if (stat (filename, &status) != 0)
1265 bfd_set_error (bfd_error_system_call);
1269 ared = (struct areltdata *) bfd_zalloc (abfd, sizeof (struct ar_hdr) +
1270 sizeof (struct areltdata));
1273 bfd_set_error (bfd_error_no_memory);
1276 hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
1278 /* ar headers are space padded, not null padded! */
1279 memset ((PTR) hdr, ' ', sizeof (struct ar_hdr));
1281 strncpy (hdr->ar_fmag, ARFMAG, 2);
1283 /* Goddamned sprintf doesn't permit MAXIMUM field lengths */
1284 sprintf ((hdr->ar_date), "%-12ld", (long) status.st_mtime);
1285 sprintf ((hdr->ar_uid), "%ld", (long) status.st_uid);
1286 sprintf ((hdr->ar_gid), "%ld", (long) status.st_gid);
1287 sprintf ((hdr->ar_mode), "%-8o", (unsigned int) status.st_mode);
1288 sprintf ((hdr->ar_size), "%-10ld", (long) status.st_size);
1289 /* Correct for a lossage in sprintf whereby it null-terminates. I cannot
1290 understand how these C losers could design such a ramshackle bunch of
1292 temp = (char *) hdr;
1293 temp1 = temp + sizeof (struct ar_hdr) - 2;
1294 for (; temp < temp1; temp++)
1299 strncpy (hdr->ar_fmag, ARFMAG, 2);
1300 ared->parsed_size = status.st_size;
1301 ared->arch_header = (char *) hdr;
1306 /* This is magic required by the "ar" program. Since it's
1307 undocumented, it's undocumented. You may think that it would take
1308 a strong stomach to write this, and it does, but it takes even a
1309 stronger stomach to try to code around such a thing! */
1312 bfd_special_undocumented_glue (abfd, filename)
1316 struct areltdata *ar_elt = bfd_ar_hdr_from_filesystem (abfd, filename);
1319 return (struct ar_hdr *) ar_elt->arch_header;
1323 /* Analogous to stat call */
1325 bfd_generic_stat_arch_elt (abfd, buf)
1332 if (abfd->arelt_data == NULL)
1334 bfd_set_error (bfd_error_invalid_operation);
1338 hdr = arch_hdr (abfd);
1340 #define foo(arelt, stelt, size) \
1341 buf->stelt = strtol (hdr->arelt, &aloser, size); \
1342 if (aloser == hdr->arelt) return -1;
1344 foo (ar_date, st_mtime, 10);
1345 foo (ar_uid, st_uid, 10);
1346 foo (ar_gid, st_gid, 10);
1347 foo (ar_mode, st_mode, 8);
1349 buf->st_size = arch_eltdata (abfd)->parsed_size;
1355 bfd_dont_truncate_arname (abfd, pathname, arhdr)
1357 CONST char *pathname;
1360 /* FIXME: This interacts unpleasantly with ar's quick-append option.
1361 Fortunately ic960 users will never use that option. Fixing this
1362 is very hard; fortunately I know how to do it and will do so once
1363 intel's release is out the door. */
1365 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1367 CONST char *filename = normalize (pathname);
1368 int maxlen = ar_maxnamelen (abfd);
1370 length = strlen (filename);
1372 if (length <= maxlen)
1373 memcpy (hdr->ar_name, filename, length);
1375 if (length < maxlen)
1376 (hdr->ar_name)[length] = ar_padchar (abfd);
1380 bfd_bsd_truncate_arname (abfd, pathname, arhdr)
1382 CONST char *pathname;
1385 struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
1387 CONST char *filename = strrchr (pathname, '/');
1388 int maxlen = ar_maxnamelen (abfd);
1390 if (filename == NULL)
1391 filename = pathname;
1395 length = strlen (filename);
1397 if (length <= maxlen)
1398 memcpy (hdr->ar_name, filename, length);
1401 /* pathname: meet procrustes */
1402 memcpy (hdr->ar_name, filename, maxlen);
1406 if (length < maxlen)
1407 (hdr->ar_name)[length] = ar_padchar (abfd);
1410 /* Store name into ar header. Truncates the name to fit.
1411 1> strip pathname to be just the basename.
1412 2> if it's short enuf to fit, stuff it in.
1413 3> If it doesn't end with .o, truncate it to fit
1414 4> truncate it before the .o, append .o, stuff THAT in. */
1416 /* This is what gnu ar does. It's better but incompatible with the
1420 bfd_gnu_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);
1440 { /* pathname: meet procrustes */
1441 memcpy (hdr->ar_name, filename, maxlen);
1442 if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
1444 hdr->ar_name[maxlen - 2] = '.';
1445 hdr->ar_name[maxlen - 1] = 'o';
1451 (hdr->ar_name)[length] = ar_padchar (abfd);
1454 /* The BFD is open for write and has its format set to bfd_archive */
1457 _bfd_write_archive_contents (arch)
1461 char *etable = NULL;
1462 unsigned int elength = 0;
1463 boolean makemap = bfd_has_map (arch);
1464 boolean hasobjects = false; /* if no .o's, don't bother to make a map */
1465 bfd_size_type wrote;
1469 /* Verify the viability of all entries; if any of them live in the
1470 filesystem (as opposed to living in an archive open for input)
1471 then construct a fresh ar_hdr for them. */
1472 for (current = arch->archive_head; current; current = current->next)
1474 if (bfd_write_p (current))
1476 bfd_set_error (bfd_error_invalid_operation);
1479 if (!current->arelt_data)
1481 current->arelt_data =
1482 (PTR) bfd_ar_hdr_from_filesystem (arch, current->filename);
1483 if (!current->arelt_data)
1486 /* Put in the file name */
1487 BFD_SEND (arch, _bfd_truncate_arname, (arch,
1489 (char *) arch_hdr (current)));
1492 if (makemap && ! hasobjects)
1493 { /* don't bother if we won't make a map! */
1494 if ((bfd_check_format (current, bfd_object))
1495 #if 0 /* FIXME -- these are not set correctly */
1496 && ((bfd_get_file_flags (current) & HAS_SYMS))
1503 if (!bfd_construct_extended_name_table (arch, &etable, &elength))
1506 if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
1509 wrote = bfd_write (BFD_GNU960_ARMAG (arch), 1, SARMAG, arch);
1511 wrote = bfd_write (ARMAG, 1, SARMAG, arch);
1513 if (wrote != SARMAG)
1516 if (makemap && hasobjects)
1518 if (compute_and_write_armap (arch, elength) != true)
1526 memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
1527 if (ar_padchar (arch) == '/')
1528 sprintf (&(hdr.ar_name[0]), "//");
1530 sprintf (&(hdr.ar_name[0]), "ARFILENAMES/");
1531 sprintf (&(hdr.ar_size[0]), "%-10d", (int) elength);
1532 strncpy (hdr.ar_fmag, ARFMAG, 2);
1533 for (i = 0; i < sizeof (struct ar_hdr); i++)
1534 if (((char *) (&hdr))[i] == '\0')
1535 (((char *) (&hdr))[i]) = ' ';
1536 if ((bfd_write ((char *) &hdr, 1, sizeof (struct ar_hdr), arch)
1537 != sizeof (struct ar_hdr))
1538 || bfd_write (etable, 1, elength, arch) != elength)
1540 if ((elength % 2) == 1)
1542 if (bfd_write ("\012", 1, 1, arch) != 1)
1547 for (current = arch->archive_head; current; current = current->next)
1549 char buffer[DEFAULT_BUFFERSIZE];
1550 unsigned int remaining = arelt_size (current);
1551 struct ar_hdr *hdr = arch_hdr (current);
1553 /* write ar header */
1554 if (bfd_write ((char *) hdr, 1, sizeof (*hdr), arch) != sizeof (*hdr))
1556 if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
1560 unsigned int amt = DEFAULT_BUFFERSIZE;
1561 if (amt > remaining)
1564 if (bfd_read (buffer, amt, 1, current) != amt)
1566 if (bfd_get_error () != bfd_error_system_call)
1567 bfd_set_error (bfd_error_malformed_archive);
1570 if (bfd_write (buffer, amt, 1, arch) != amt)
1574 if ((arelt_size (current) % 2) == 1)
1576 if (bfd_write ("\012", 1, 1, arch) != 1)
1581 /* Verify the timestamp in the archive file. If it would not be
1582 accepted by the linker, rewrite it until it would be. If
1583 anything odd happens, break out and just return. (The Berkeley
1584 linker checks the timestamp and refuses to read the
1585 table-of-contents if it is >60 seconds less than the file's
1586 modified-time. That painful hack requires this painful hack. */
1591 if (bfd_update_armap_timestamp (arch) == true) /* FIXME!!! Vector it */
1595 "Warning: writing archive was slow: rewriting timestamp\n");
1597 while (++tries < 6);
1602 /* Note that the namidx for the first symbol is 0 */
1605 compute_and_write_armap (arch, elength)
1607 unsigned int elength;
1609 char *first_name = NULL;
1611 file_ptr elt_no = 0;
1612 struct orl *map = NULL;
1613 int orl_max = 1024; /* fine initial default */
1615 int stridx = 0; /* string index */
1616 asymbol **syms = NULL;
1620 /* Dunno if this is the best place for this info... */
1622 elength += sizeof (struct ar_hdr);
1623 elength += elength % 2;
1625 map = (struct orl *) malloc (orl_max * sizeof (struct orl));
1627 goto no_memory_return;
1629 /* We put the symbol names on the arch obstack, and then discard
1631 first_name = bfd_alloc (arch, 1);
1632 if (first_name == NULL)
1633 goto no_memory_return;
1635 /* Drop all the files called __.SYMDEF, we're going to make our
1637 while (arch->archive_head &&
1638 strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
1639 arch->archive_head = arch->archive_head->next;
1641 /* Map over each element */
1642 for (current = arch->archive_head;
1643 current != (bfd *) NULL;
1644 current = current->next, elt_no++)
1646 if ((bfd_check_format (current, bfd_object) == true)
1647 && ((bfd_get_file_flags (current) & HAS_SYMS)))
1653 storage = bfd_get_symtab_upper_bound (current);
1659 if (storage > syms_max)
1664 syms = (asymbol **) malloc ((size_t) syms_max);
1666 goto no_memory_return;
1668 symcount = bfd_canonicalize_symtab (current, syms);
1672 /* Now map over all the symbols, picking out the ones we want */
1673 for (src_count = 0; src_count < symcount; src_count++)
1675 flagword flags = (syms[src_count])->flags;
1676 asection *sec = syms[src_count]->section;
1678 if ((flags & BSF_GLOBAL ||
1680 flags & BSF_INDIRECT ||
1681 bfd_is_com_section (sec))
1682 && ! bfd_is_und_section (sec))
1685 struct orl *new_map;
1687 /* This symbol will go into the archive header */
1688 if (orl_count == orl_max)
1691 new_map = ((struct orl *)
1693 orl_max * sizeof (struct orl)));
1694 if (new_map == (struct orl *) NULL)
1695 goto no_memory_return;
1700 namelen = strlen (syms[src_count]->name);
1701 map[orl_count].name = ((char **)
1704 if (map[orl_count].name == NULL)
1705 goto no_memory_return;
1706 *(map[orl_count].name) = bfd_alloc (arch, namelen + 1);
1707 if (*(map[orl_count].name) == NULL)
1708 goto no_memory_return;
1709 strcpy (*(map[orl_count].name), syms[src_count]->name);
1710 (map[orl_count]).pos = (file_ptr) current;
1711 (map[orl_count]).namidx = stridx;
1713 stridx += namelen + 1;
1719 /* Now ask the BFD to free up any cached information, so we
1720 don't fill all of memory with symbol tables. */
1721 if (! bfd_free_cached_info (current))
1726 /* OK, now we have collected all the data, let's write them out */
1727 ret = BFD_SEND (arch, write_armap,
1728 (arch, elength, map, orl_count, stridx));
1734 if (first_name != NULL)
1735 bfd_release (arch, first_name);
1740 bfd_set_error (bfd_error_no_memory);
1747 if (first_name != NULL)
1748 bfd_release (arch, first_name);
1754 bsd_write_armap (arch, elength, map, orl_count, stridx)
1756 unsigned int elength;
1758 unsigned int orl_count;
1761 int padit = stridx & 1;
1762 unsigned int ranlibsize = orl_count * sizeof (struct ranlib);
1763 unsigned int stringsize = stridx + padit;
1764 /* Include 8 bytes to store ranlibsize and stringsize in output. */
1765 unsigned int mapsize = ranlibsize + stringsize + 8;
1767 bfd *current = arch->archive_head;
1768 bfd *last_elt = current; /* last element arch seen */
1772 struct stat statbuf;
1775 firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
1777 stat (arch->filename, &statbuf);
1778 memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
1779 sprintf (hdr.ar_name, RANLIBMAG);
1780 /* Remember the timestamp, to keep it holy. But fudge it a little. */
1781 bfd_ardata (arch)->armap_timestamp = statbuf.st_mtime + ARMAP_TIME_OFFSET;
1782 bfd_ardata (arch)->armap_datepos = (SARMAG
1783 + offsetof (struct ar_hdr, ar_date[0]));
1784 sprintf (hdr.ar_date, "%ld", bfd_ardata (arch)->armap_timestamp);
1785 sprintf (hdr.ar_uid, "%d", getuid ());
1786 sprintf (hdr.ar_gid, "%d", getgid ());
1787 sprintf (hdr.ar_size, "%-10d", (int) mapsize);
1788 strncpy (hdr.ar_fmag, ARFMAG, 2);
1789 for (i = 0; i < sizeof (struct ar_hdr); i++)
1790 if (((char *) (&hdr))[i] == '\0')
1791 (((char *) (&hdr))[i]) = ' ';
1792 if (bfd_write ((char *) &hdr, 1, sizeof (struct ar_hdr), arch)
1793 != sizeof (struct ar_hdr))
1795 bfd_h_put_32 (arch, (bfd_vma) ranlibsize, (PTR) &temp);
1796 if (bfd_write (&temp, 1, sizeof (temp), arch) != sizeof (temp))
1799 for (count = 0; count < orl_count; count++)
1802 struct symdef *outp = &outs;
1804 if (((bfd *) (map[count]).pos) != last_elt)
1808 firstreal += arelt_size (current) + sizeof (struct ar_hdr);
1809 firstreal += firstreal % 2;
1810 current = current->next;
1812 while (current != (bfd *) (map[count]).pos);
1813 } /* if new archive element */
1816 bfd_h_put_32 (arch, ((map[count]).namidx), (PTR) &outs.s.string_offset);
1817 bfd_h_put_32 (arch, firstreal, (PTR) &outs.file_offset);
1818 if (bfd_write ((char *) outp, 1, sizeof (outs), arch) != sizeof (outs))
1822 /* now write the strings themselves */
1823 bfd_h_put_32 (arch, stringsize, (PTR) &temp);
1824 if (bfd_write ((PTR) &temp, 1, sizeof (temp), arch) != sizeof (temp))
1826 for (count = 0; count < orl_count; count++)
1828 size_t len = strlen (*map[count].name) + 1;
1830 if (bfd_write (*map[count].name, 1, len, arch) != len)
1834 /* The spec sez this should be a newline. But in order to be
1835 bug-compatible for sun's ar we use a null. */
1838 if (bfd_write ("", 1, 1, arch) != 1)
1845 /* At the end of archive file handling, update the timestamp in the
1846 file, so the linker will accept it.
1848 Return true if the timestamp was OK, or an unusual problem happened.
1849 Return false if we updated the timestamp. */
1852 _bfd_archive_bsd_update_armap_timestamp (arch)
1855 struct stat archstat;
1859 /* Flush writes, get last-write timestamp from file, and compare it
1860 to the timestamp IN the file. */
1862 if (bfd_stat (arch, &archstat) == -1)
1864 perror ("Reading archive file mod timestamp");
1865 return true; /* Can't read mod time for some reason */
1867 if (archstat.st_mtime <= bfd_ardata (arch)->armap_timestamp)
1868 return true; /* OK by the linker's rules */
1870 /* Update the timestamp. */
1871 bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
1873 /* Prepare an ASCII version suitable for writing. */
1874 memset (hdr.ar_date, 0, sizeof (hdr.ar_date));
1875 sprintf (hdr.ar_date, "%ld", bfd_ardata (arch)->armap_timestamp);
1876 for (i = 0; i < sizeof (hdr.ar_date); i++)
1877 if (hdr.ar_date[i] == '\0')
1878 (hdr.ar_date)[i] = ' ';
1880 /* Write it into the file. */
1881 bfd_ardata (arch)->armap_datepos = (SARMAG
1882 + offsetof (struct ar_hdr, ar_date[0]));
1883 if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
1884 || (bfd_write (hdr.ar_date, sizeof (hdr.ar_date), 1, arch)
1885 != sizeof (hdr.ar_date)))
1887 /* FIXME: bfd can't call perror. */
1888 perror ("Writing updated armap timestamp");
1889 return true; /* Some error while writing */
1892 return false; /* We updated the timestamp successfully. */
1895 /* A coff armap looks like :
1897 struct ar_hdr with name = '/'
1899 offset of file for symbol 0
1900 offset of file for symbol 1
1902 offset of file for symbol n-1
1910 coff_write_armap (arch, elength, map, symbol_count, stridx)
1912 unsigned int elength;
1914 unsigned int symbol_count;
1917 /* The size of the ranlib is the number of exported symbols in the
1918 archive * the number of bytes in a int, + an int for the count */
1919 unsigned int ranlibsize = (symbol_count * 4) + 4;
1920 unsigned int stringsize = stridx;
1921 unsigned int mapsize = stringsize + ranlibsize;
1922 file_ptr archive_member_file_ptr;
1923 bfd *current = arch->archive_head;
1927 int padit = mapsize & 1;
1932 /* work out where the first object file will go in the archive */
1933 archive_member_file_ptr = (mapsize
1935 + sizeof (struct ar_hdr)
1938 memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
1939 hdr.ar_name[0] = '/';
1940 sprintf (hdr.ar_size, "%-10d", (int) mapsize);
1941 sprintf (hdr.ar_date, "%ld", (long) time (NULL));
1942 /* This, at least, is what Intel coff sets the values to.: */
1943 sprintf ((hdr.ar_uid), "%d", 0);
1944 sprintf ((hdr.ar_gid), "%d", 0);
1945 sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0);
1946 strncpy (hdr.ar_fmag, ARFMAG, 2);
1948 for (i = 0; i < sizeof (struct ar_hdr); i++)
1949 if (((char *) (&hdr))[i] == '\0')
1950 (((char *) (&hdr))[i]) = ' ';
1952 /* Write the ar header for this item and the number of symbols */
1954 if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch)
1955 != sizeof (struct ar_hdr))
1958 bfd_write_bigendian_4byte_int (arch, symbol_count);
1960 /* Two passes, first write the file offsets for each symbol -
1961 remembering that each offset is on a two byte boundary. */
1963 /* Write out the file offset for the file associated with each
1964 symbol, and remember to keep the offsets padded out. */
1966 current = arch->archive_head;
1968 while (current != (bfd *) NULL && count < symbol_count)
1970 /* For each symbol which is used defined in this object, write out
1971 the object file's address in the archive */
1973 while (((bfd *) (map[count]).pos) == current)
1975 bfd_write_bigendian_4byte_int (arch, archive_member_file_ptr);
1978 /* Add size of this archive entry */
1979 archive_member_file_ptr += (arelt_size (current)
1980 + sizeof (struct ar_hdr));
1981 /* remember aboout the even alignment */
1982 archive_member_file_ptr += archive_member_file_ptr % 2;
1983 current = current->next;
1986 /* now write the strings themselves */
1987 for (count = 0; count < symbol_count; count++)
1989 size_t len = strlen (*map[count].name) + 1;
1991 if (bfd_write (*map[count].name, 1, len, arch) != len)
1995 /* The spec sez this should be a newline. But in order to be
1996 bug-compatible for arc960 we use a null. */
1999 if (bfd_write ("", 1, 1, arch) != 1)