Commit | Line | Data |
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e6cc316a | 1 | /* Support for 64-bit archives. |
82704155 | 2 | Copyright (C) 1996-2019 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 | ||
b34976b6 | 37 | bfd_boolean |
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; | |
50 | ||
51 | ardata->symdefs = NULL; | |
52 | ||
53 | /* Get the name of the first element. */ | |
c58b9523 | 54 | i = bfd_bread (nextname, 16, abfd); |
36b45482 | 55 | if (i == 0) |
b34976b6 | 56 | return TRUE; |
36b45482 | 57 | if (i != 16) |
b34976b6 | 58 | return FALSE; |
36b45482 TS |
59 | |
60 | if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0) | |
b34976b6 | 61 | return FALSE; |
36b45482 TS |
62 | |
63 | /* Archives with traditional armaps are still permitted. */ | |
0112cd26 | 64 | if (CONST_STRNEQ (nextname, "/ ")) |
36b45482 TS |
65 | return bfd_slurp_armap (abfd); |
66 | ||
0112cd26 | 67 | if (! CONST_STRNEQ (nextname, "/SYM64/ ")) |
36b45482 | 68 | { |
b34976b6 AM |
69 | bfd_has_map (abfd) = FALSE; |
70 | return TRUE; | |
36b45482 TS |
71 | } |
72 | ||
73 | mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); | |
74 | if (mapdata == NULL) | |
b34976b6 | 75 | return FALSE; |
36b45482 | 76 | parsed_size = mapdata->parsed_size; |
06e7acd7 | 77 | free (mapdata); |
36b45482 | 78 | |
c58b9523 | 79 | if (bfd_bread (int_buf, 8, abfd) != 8) |
36b45482 TS |
80 | { |
81 | if (bfd_get_error () != bfd_error_system_call) | |
82 | bfd_set_error (bfd_error_malformed_archive); | |
b34976b6 | 83 | return FALSE; |
36b45482 TS |
84 | } |
85 | ||
86 | nsymz = bfd_getb64 (int_buf); | |
87 | stringsize = parsed_size - 8 * nsymz - 8; | |
88 | ||
89 | carsym_size = nsymz * sizeof (carsym); | |
90 | ptrsize = 8 * nsymz; | |
91 | ||
92 | amt = carsym_size + stringsize + 1; | |
97b031c5 AM |
93 | if (/* Catch overflow in stringsize (and ptrsize) expression. */ |
94 | nsymz >= (bfd_size_type) -1 / 8 | |
95 | || stringsize > parsed_size | |
96 | /* Catch overflow in carsym_size expression. */ | |
97 | || nsymz > (bfd_size_type) -1 / sizeof (carsym) | |
98 | /* Catch overflow in amt expression. */ | |
99 | || amt <= carsym_size | |
100 | || amt <= stringsize) | |
f64e188b NC |
101 | { |
102 | bfd_set_error (bfd_error_malformed_archive); | |
103 | return FALSE; | |
104 | } | |
a50b1753 | 105 | ardata->symdefs = (struct carsym *) bfd_zalloc (abfd, amt); |
36b45482 | 106 | if (ardata->symdefs == NULL) |
b34976b6 | 107 | return FALSE; |
36b45482 TS |
108 | carsyms = ardata->symdefs; |
109 | stringbase = ((char *) ardata->symdefs) + carsym_size; | |
110 | ||
a50b1753 | 111 | raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize); |
36b45482 TS |
112 | if (raw_armap == NULL) |
113 | goto release_symdefs; | |
114 | ||
115 | if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize | |
116 | || bfd_bread (stringbase, stringsize, abfd) != stringsize) | |
117 | { | |
118 | if (bfd_get_error () != bfd_error_system_call) | |
119 | bfd_set_error (bfd_error_malformed_archive); | |
120 | goto release_raw_armap; | |
121 | } | |
122 | ||
8abac803 AM |
123 | stringend = stringbase + stringsize; |
124 | *stringend = 0; | |
36b45482 TS |
125 | for (i = 0; i < nsymz; i++) |
126 | { | |
127 | carsyms->file_offset = bfd_getb64 (raw_armap + i * 8); | |
128 | carsyms->name = stringbase; | |
8abac803 AM |
129 | stringbase += strlen (stringbase); |
130 | if (stringbase != stringend) | |
131 | ++stringbase; | |
36b45482 TS |
132 | ++carsyms; |
133 | } | |
36b45482 TS |
134 | |
135 | ardata->symdef_count = nsymz; | |
136 | ardata->first_file_filepos = bfd_tell (abfd); | |
137 | /* Pad to an even boundary if you have to. */ | |
138 | ardata->first_file_filepos += (ardata->first_file_filepos) % 2; | |
139 | ||
b34976b6 | 140 | bfd_has_map (abfd) = TRUE; |
36b45482 TS |
141 | bfd_release (abfd, raw_armap); |
142 | ||
b34976b6 | 143 | return TRUE; |
36b45482 TS |
144 | |
145 | release_raw_armap: | |
146 | bfd_release (abfd, raw_armap); | |
147 | release_symdefs: | |
148 | bfd_release (abfd, ardata->symdefs); | |
b34976b6 | 149 | return FALSE; |
36b45482 TS |
150 | } |
151 | ||
152 | /* Write out an Irix 6 armap. The Irix 6 tools are supposed to be | |
153 | able to handle ordinary ELF armaps, but at least on Irix 6.2 the | |
154 | linker crashes. */ | |
155 | ||
b34976b6 | 156 | bfd_boolean |
e6cc316a L |
157 | _bfd_archive_64_bit_write_armap (bfd *arch, |
158 | unsigned int elength, | |
159 | struct orl *map, | |
160 | unsigned int symbol_count, | |
161 | int stridx) | |
36b45482 TS |
162 | { |
163 | unsigned int ranlibsize = (symbol_count * 8) + 8; | |
164 | unsigned int stringsize = stridx; | |
165 | unsigned int mapsize = stringsize + ranlibsize; | |
166 | file_ptr archive_member_file_ptr; | |
167 | bfd *current = arch->archive_head; | |
168 | unsigned int count; | |
169 | struct ar_hdr hdr; | |
36b45482 TS |
170 | int padding; |
171 | bfd_byte buf[8]; | |
172 | ||
173 | padding = BFD_ALIGN (mapsize, 8) - mapsize; | |
174 | mapsize += padding; | |
175 | ||
176 | /* work out where the first object file will go in the archive */ | |
177 | archive_member_file_ptr = (mapsize | |
178 | + elength | |
179 | + sizeof (struct ar_hdr) | |
180 | + SARMAG); | |
181 | ||
390c0e42 JJ |
182 | memset (&hdr, ' ', sizeof (struct ar_hdr)); |
183 | memcpy (hdr.ar_name, "/SYM64/", strlen ("/SYM64/")); | |
f1bb16f8 NC |
184 | if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize)) |
185 | return FALSE; | |
390c0e42 | 186 | _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld", |
07d6d2b8 | 187 | time (NULL)); |
36b45482 | 188 | /* This, at least, is what Intel coff sets the values to.: */ |
390c0e42 JJ |
189 | _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0); |
190 | _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0); | |
191 | _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0); | |
192 | memcpy (hdr.ar_fmag, ARFMAG, 2); | |
36b45482 TS |
193 | |
194 | /* Write the ar header for this item and the number of symbols */ | |
195 | ||
c58b9523 | 196 | if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch) |
36b45482 | 197 | != sizeof (struct ar_hdr)) |
b34976b6 | 198 | return FALSE; |
36b45482 TS |
199 | |
200 | bfd_putb64 ((bfd_vma) symbol_count, buf); | |
c58b9523 | 201 | if (bfd_bwrite (buf, 8, arch) != 8) |
b34976b6 | 202 | return FALSE; |
36b45482 TS |
203 | |
204 | /* Two passes, first write the file offsets for each symbol - | |
205 | remembering that each offset is on a two byte boundary. */ | |
206 | ||
207 | /* Write out the file offset for the file associated with each | |
208 | symbol, and remember to keep the offsets padded out. */ | |
36b45482 | 209 | count = 0; |
61e8a5ea NS |
210 | for (current = arch->archive_head; |
211 | current != NULL && count < symbol_count; | |
212 | current = current->archive_next) | |
36b45482 TS |
213 | { |
214 | /* For each symbol which is used defined in this object, write out | |
17e3916e | 215 | the object file's address in the archive. */ |
36b45482 | 216 | |
61e8a5ea NS |
217 | for (; |
218 | count < symbol_count && map[count].u.abfd == current; | |
219 | count++) | |
36b45482 TS |
220 | { |
221 | bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf); | |
c58b9523 | 222 | if (bfd_bwrite (buf, 8, arch) != 8) |
b34976b6 | 223 | return FALSE; |
36b45482 | 224 | } |
17e3916e | 225 | |
36b45482 | 226 | /* Add size of this archive entry */ |
17e3916e NC |
227 | archive_member_file_ptr += sizeof (struct ar_hdr); |
228 | if (! bfd_is_thin_archive (arch)) | |
229 | archive_member_file_ptr += arelt_size (current); | |
36b45482 TS |
230 | /* remember about the even alignment */ |
231 | archive_member_file_ptr += archive_member_file_ptr % 2; | |
36b45482 TS |
232 | } |
233 | ||
234 | /* now write the strings themselves */ | |
235 | for (count = 0; count < symbol_count; count++) | |
236 | { | |
237 | size_t len = strlen (*map[count].name) + 1; | |
238 | ||
c58b9523 | 239 | if (bfd_bwrite (*map[count].name, len, arch) != len) |
b34976b6 | 240 | return FALSE; |
36b45482 TS |
241 | } |
242 | ||
243 | /* The spec says that this should be padded to an 8 byte boundary. | |
244 | However, the Irix 6.2 tools do not appear to do this. */ | |
245 | while (padding != 0) | |
246 | { | |
c58b9523 | 247 | if (bfd_bwrite ("", 1, arch) != 1) |
b34976b6 | 248 | return FALSE; |
36b45482 TS |
249 | --padding; |
250 | } | |
251 | ||
b34976b6 | 252 | return TRUE; |
36b45482 | 253 | } |