Commit | Line | Data |
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e6cc316a | 1 | /* Support for 64-bit archives. |
a2c58332 | 2 | Copyright (C) 1996-2022 Free Software Foundation, Inc. |
36b45482 TS |
3 | Ian Lance Taylor, Cygnus Support |
4 | Linker support added by Mark Mitchell, CodeSourcery, LLC. | |
5 | <mark@codesourcery.com> | |
6 | ||
0112cd26 | 7 | This file is part of BFD, the Binary File Descriptor library. |
36b45482 | 8 | |
0112cd26 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
0112cd26 | 12 | (at your option) any later version. |
36b45482 | 13 | |
0112cd26 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
36b45482 | 18 | |
0112cd26 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
36b45482 | 23 | |
e6cc316a L |
24 | /* This file supports the 64-bit archives. We use the same format as |
25 | the 64-bit (MIPS) ELF archives. */ | |
36b45482 | 26 | |
36b45482 | 27 | #include "sysdep.h" |
3db64b00 | 28 | #include "bfd.h" |
36b45482 TS |
29 | #include "libbfd.h" |
30 | #include "aout/ar.h" | |
31 | ||
32 | /* Irix 6 defines a 64bit archive map format, so that they can | |
33 | have archives more than 4 GB in size. */ | |
34 | ||
36b45482 TS |
35 | /* Read an Irix 6 armap. */ |
36 | ||
0a1b45a2 | 37 | bool |
e6cc316a | 38 | _bfd_archive_64_bit_slurp_armap (bfd *abfd) |
36b45482 TS |
39 | { |
40 | struct artdata *ardata = bfd_ardata (abfd); | |
41 | char nextname[17]; | |
36b45482 TS |
42 | bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize; |
43 | struct areltdata *mapdata; | |
44 | bfd_byte int_buf[8]; | |
45 | char *stringbase; | |
f64e188b | 46 | char *stringend; |
36b45482 TS |
47 | bfd_byte *raw_armap = NULL; |
48 | carsym *carsyms; | |
49 | bfd_size_type amt; | |
6f8f95b4 | 50 | ufile_ptr filesize; |
36b45482 TS |
51 | |
52 | ardata->symdefs = NULL; | |
53 | ||
54 | /* Get the name of the first element. */ | |
c58b9523 | 55 | i = bfd_bread (nextname, 16, abfd); |
36b45482 | 56 | if (i == 0) |
0a1b45a2 | 57 | return true; |
36b45482 | 58 | if (i != 16) |
0a1b45a2 | 59 | return false; |
36b45482 TS |
60 | |
61 | if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0) | |
0a1b45a2 | 62 | return false; |
36b45482 TS |
63 | |
64 | /* Archives with traditional armaps are still permitted. */ | |
08dedd66 | 65 | if (startswith (nextname, "/ ")) |
36b45482 TS |
66 | return bfd_slurp_armap (abfd); |
67 | ||
08dedd66 | 68 | if (! startswith (nextname, "/SYM64/ ")) |
36b45482 | 69 | { |
0a1b45a2 AM |
70 | abfd->has_armap = false; |
71 | return true; | |
36b45482 TS |
72 | } |
73 | ||
74 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); | |
75 | if (mapdata == NULL) | |
0a1b45a2 | 76 | return false; |
36b45482 | 77 | parsed_size = mapdata->parsed_size; |
06e7acd7 | 78 | free (mapdata); |
36b45482 | 79 | |
6f8f95b4 AM |
80 | filesize = bfd_get_file_size (abfd); |
81 | if (filesize != 0 && parsed_size > filesize) | |
82 | { | |
83 | bfd_set_error (bfd_error_malformed_archive); | |
0a1b45a2 | 84 | return false; |
6f8f95b4 AM |
85 | } |
86 | ||
c58b9523 | 87 | if (bfd_bread (int_buf, 8, abfd) != 8) |
36b45482 TS |
88 | { |
89 | if (bfd_get_error () != bfd_error_system_call) | |
90 | bfd_set_error (bfd_error_malformed_archive); | |
0a1b45a2 | 91 | return false; |
36b45482 TS |
92 | } |
93 | ||
94 | nsymz = bfd_getb64 (int_buf); | |
95 | stringsize = parsed_size - 8 * nsymz - 8; | |
96 | ||
97 | carsym_size = nsymz * sizeof (carsym); | |
98 | ptrsize = 8 * nsymz; | |
99 | ||
100 | amt = carsym_size + stringsize + 1; | |
97b031c5 AM |
101 | if (/* Catch overflow in stringsize (and ptrsize) expression. */ |
102 | nsymz >= (bfd_size_type) -1 / 8 | |
103 | || stringsize > parsed_size | |
104 | /* Catch overflow in carsym_size expression. */ | |
105 | || nsymz > (bfd_size_type) -1 / sizeof (carsym) | |
106 | /* Catch overflow in amt expression. */ | |
107 | || amt <= carsym_size | |
108 | || amt <= stringsize) | |
f64e188b NC |
109 | { |
110 | bfd_set_error (bfd_error_malformed_archive); | |
0a1b45a2 | 111 | return false; |
f64e188b | 112 | } |
6f8f95b4 | 113 | ardata->symdefs = (struct carsym *) bfd_alloc (abfd, amt); |
36b45482 | 114 | if (ardata->symdefs == NULL) |
0a1b45a2 | 115 | return false; |
36b45482 TS |
116 | carsyms = ardata->symdefs; |
117 | stringbase = ((char *) ardata->symdefs) + carsym_size; | |
118 | ||
2bb3687b AM |
119 | raw_armap = (bfd_byte *) _bfd_alloc_and_read (abfd, ptrsize, ptrsize); |
120 | if (raw_armap == NULL | |
36b45482 TS |
121 | || bfd_bread (stringbase, stringsize, abfd) != stringsize) |
122 | { | |
123 | if (bfd_get_error () != bfd_error_system_call) | |
124 | bfd_set_error (bfd_error_malformed_archive); | |
806470a2 | 125 | goto release_symdefs; |
36b45482 TS |
126 | } |
127 | ||
8abac803 AM |
128 | stringend = stringbase + stringsize; |
129 | *stringend = 0; | |
36b45482 TS |
130 | for (i = 0; i < nsymz; i++) |
131 | { | |
132 | carsyms->file_offset = bfd_getb64 (raw_armap + i * 8); | |
133 | carsyms->name = stringbase; | |
8abac803 AM |
134 | stringbase += strlen (stringbase); |
135 | if (stringbase != stringend) | |
136 | ++stringbase; | |
36b45482 TS |
137 | ++carsyms; |
138 | } | |
36b45482 TS |
139 | |
140 | ardata->symdef_count = nsymz; | |
141 | ardata->first_file_filepos = bfd_tell (abfd); | |
142 | /* Pad to an even boundary if you have to. */ | |
143 | ardata->first_file_filepos += (ardata->first_file_filepos) % 2; | |
144 | ||
0a1b45a2 | 145 | abfd->has_armap = true; |
36b45482 TS |
146 | bfd_release (abfd, raw_armap); |
147 | ||
0a1b45a2 | 148 | return true; |
36b45482 | 149 | |
dc1e8a47 | 150 | release_symdefs: |
36b45482 | 151 | bfd_release (abfd, ardata->symdefs); |
0a1b45a2 | 152 | return false; |
36b45482 TS |
153 | } |
154 | ||
155 | /* Write out an Irix 6 armap. The Irix 6 tools are supposed to be | |
156 | able to handle ordinary ELF armaps, but at least on Irix 6.2 the | |
157 | linker crashes. */ | |
158 | ||
0a1b45a2 | 159 | bool |
e6cc316a L |
160 | _bfd_archive_64_bit_write_armap (bfd *arch, |
161 | unsigned int elength, | |
162 | struct orl *map, | |
163 | unsigned int symbol_count, | |
164 | int stridx) | |
36b45482 TS |
165 | { |
166 | unsigned int ranlibsize = (symbol_count * 8) + 8; | |
167 | unsigned int stringsize = stridx; | |
168 | unsigned int mapsize = stringsize + ranlibsize; | |
169 | file_ptr archive_member_file_ptr; | |
170 | bfd *current = arch->archive_head; | |
171 | unsigned int count; | |
172 | struct ar_hdr hdr; | |
36b45482 TS |
173 | int padding; |
174 | bfd_byte buf[8]; | |
175 | ||
176 | padding = BFD_ALIGN (mapsize, 8) - mapsize; | |
177 | mapsize += padding; | |
178 | ||
179 | /* work out where the first object file will go in the archive */ | |
180 | archive_member_file_ptr = (mapsize | |
181 | + elength | |
182 | + sizeof (struct ar_hdr) | |
183 | + SARMAG); | |
184 | ||
390c0e42 JJ |
185 | memset (&hdr, ' ', sizeof (struct ar_hdr)); |
186 | memcpy (hdr.ar_name, "/SYM64/", strlen ("/SYM64/")); | |
f1bb16f8 | 187 | if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize)) |
0a1b45a2 | 188 | return false; |
390c0e42 | 189 | _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld", |
07d6d2b8 | 190 | time (NULL)); |
36b45482 | 191 | /* This, at least, is what Intel coff sets the values to.: */ |
390c0e42 JJ |
192 | _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0); |
193 | _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0); | |
194 | _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0); | |
195 | memcpy (hdr.ar_fmag, ARFMAG, 2); | |
36b45482 TS |
196 | |
197 | /* Write the ar header for this item and the number of symbols */ | |
198 | ||
c58b9523 | 199 | if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch) |
36b45482 | 200 | != sizeof (struct ar_hdr)) |
0a1b45a2 | 201 | return false; |
36b45482 TS |
202 | |
203 | bfd_putb64 ((bfd_vma) symbol_count, buf); | |
c58b9523 | 204 | if (bfd_bwrite (buf, 8, arch) != 8) |
0a1b45a2 | 205 | return false; |
36b45482 TS |
206 | |
207 | /* Two passes, first write the file offsets for each symbol - | |
208 | remembering that each offset is on a two byte boundary. */ | |
209 | ||
210 | /* Write out the file offset for the file associated with each | |
211 | symbol, and remember to keep the offsets padded out. */ | |
36b45482 | 212 | count = 0; |
61e8a5ea NS |
213 | for (current = arch->archive_head; |
214 | current != NULL && count < symbol_count; | |
215 | current = current->archive_next) | |
36b45482 TS |
216 | { |
217 | /* For each symbol which is used defined in this object, write out | |
17e3916e | 218 | the object file's address in the archive. */ |
36b45482 | 219 | |
61e8a5ea NS |
220 | for (; |
221 | count < symbol_count && map[count].u.abfd == current; | |
222 | count++) | |
36b45482 TS |
223 | { |
224 | bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf); | |
c58b9523 | 225 | if (bfd_bwrite (buf, 8, arch) != 8) |
0a1b45a2 | 226 | return false; |
36b45482 | 227 | } |
17e3916e | 228 | |
36b45482 | 229 | /* Add size of this archive entry */ |
17e3916e NC |
230 | archive_member_file_ptr += sizeof (struct ar_hdr); |
231 | if (! bfd_is_thin_archive (arch)) | |
232 | archive_member_file_ptr += arelt_size (current); | |
36b45482 TS |
233 | /* remember about the even alignment */ |
234 | archive_member_file_ptr += archive_member_file_ptr % 2; | |
36b45482 TS |
235 | } |
236 | ||
237 | /* now write the strings themselves */ | |
238 | for (count = 0; count < symbol_count; count++) | |
239 | { | |
240 | size_t len = strlen (*map[count].name) + 1; | |
241 | ||
c58b9523 | 242 | if (bfd_bwrite (*map[count].name, len, arch) != len) |
0a1b45a2 | 243 | return false; |
36b45482 TS |
244 | } |
245 | ||
246 | /* The spec says that this should be padded to an 8 byte boundary. | |
247 | However, the Irix 6.2 tools do not appear to do this. */ | |
248 | while (padding != 0) | |
249 | { | |
c58b9523 | 250 | if (bfd_bwrite ("", 1, arch) != 1) |
0a1b45a2 | 251 | return false; |
36b45482 TS |
252 | --padding; |
253 | } | |
254 | ||
0a1b45a2 | 255 | return true; |
36b45482 | 256 | } |