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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [archive64.c] - Blame information for rev 298

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Line No. Rev Author Line
1 24 jeremybenn
/* MIPS-specific support for 64-bit ELF
2 225 jeremybenn
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007
3 24 jeremybenn
   Free Software Foundation, Inc.
4
   Ian Lance Taylor, Cygnus Support
5
   Linker support added by Mark Mitchell, CodeSourcery, LLC.
6
   <mark@codesourcery.com>
7
 
8
   This file is part of BFD, the Binary File Descriptor library.
9
 
10
   This program is free software; you can redistribute it and/or modify
11
   it under the terms of the GNU General Public License as published by
12
   the Free Software Foundation; either version 3 of the License, or
13
   (at your option) any later version.
14
 
15
   This program is distributed in the hope that it will be useful,
16
   but WITHOUT ANY WARRANTY; without even the implied warranty of
17
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
   GNU General Public License for more details.
19
 
20
   You should have received a copy of the GNU General Public License
21
   along with this program; if not, write to the Free Software
22
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23
   MA 02110-1301, USA.  */
24
 
25
/* This file supports the 64-bit (MIPS) ELF archives.  */
26
 
27
#include "sysdep.h"
28
#include "bfd.h"
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
 
35
bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
36
bfd_boolean bfd_elf64_archive_write_armap
37
  (bfd *, unsigned int, struct orl *, unsigned int, int);
38
 
39
/* Read an Irix 6 armap.  */
40
 
41
bfd_boolean
42
bfd_elf64_archive_slurp_armap (bfd *abfd)
43
{
44
  struct artdata *ardata = bfd_ardata (abfd);
45
  char nextname[17];
46
  file_ptr arhdrpos;
47
  bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
48
  struct areltdata *mapdata;
49
  bfd_byte int_buf[8];
50
  char *stringbase;
51
  bfd_byte *raw_armap = NULL;
52
  carsym *carsyms;
53
  bfd_size_type amt;
54
 
55
  ardata->symdefs = NULL;
56
 
57
  /* Get the name of the first element.  */
58
  arhdrpos = bfd_tell (abfd);
59
  i = bfd_bread (nextname, 16, abfd);
60
  if (i == 0)
61
    return TRUE;
62
  if (i != 16)
63
    return FALSE;
64
 
65
  if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
66
    return FALSE;
67
 
68
  /* Archives with traditional armaps are still permitted.  */
69
  if (CONST_STRNEQ (nextname, "/               "))
70
    return bfd_slurp_armap (abfd);
71
 
72
  if (! CONST_STRNEQ (nextname, "/SYM64/         "))
73
    {
74
      bfd_has_map (abfd) = FALSE;
75
      return TRUE;
76
    }
77
 
78
  mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
79
  if (mapdata == NULL)
80
    return FALSE;
81
  parsed_size = mapdata->parsed_size;
82
  bfd_release (abfd, mapdata);
83
 
84
  if (bfd_bread (int_buf, 8, abfd) != 8)
85
    {
86
      if (bfd_get_error () != bfd_error_system_call)
87
        bfd_set_error (bfd_error_malformed_archive);
88
      return FALSE;
89
    }
90
 
91
  nsymz = bfd_getb64 (int_buf);
92
  stringsize = parsed_size - 8 * nsymz - 8;
93
 
94
  carsym_size = nsymz * sizeof (carsym);
95
  ptrsize = 8 * nsymz;
96
 
97
  amt = carsym_size + stringsize + 1;
98 225 jeremybenn
  ardata->symdefs = (struct carsym *) bfd_zalloc (abfd, amt);
99 24 jeremybenn
  if (ardata->symdefs == NULL)
100
    return FALSE;
101
  carsyms = ardata->symdefs;
102
  stringbase = ((char *) ardata->symdefs) + carsym_size;
103
 
104 225 jeremybenn
  raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
105 24 jeremybenn
  if (raw_armap == NULL)
106
    goto release_symdefs;
107
 
108
  if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
109
      || bfd_bread (stringbase, stringsize, abfd) != stringsize)
110
    {
111
      if (bfd_get_error () != bfd_error_system_call)
112
        bfd_set_error (bfd_error_malformed_archive);
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      goto release_raw_armap;
114
    }
115
 
116
  for (i = 0; i < nsymz; i++)
117
    {
118
      carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
119
      carsyms->name = stringbase;
120
      stringbase += strlen (stringbase) + 1;
121
      ++carsyms;
122
    }
123
  *stringbase = '\0';
124
 
125
  ardata->symdef_count = nsymz;
126
  ardata->first_file_filepos = bfd_tell (abfd);
127
  /* Pad to an even boundary if you have to.  */
128
  ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
129
 
130
  bfd_has_map (abfd) = TRUE;
131
  bfd_release (abfd, raw_armap);
132
 
133
  return TRUE;
134
 
135
release_raw_armap:
136
  bfd_release (abfd, raw_armap);
137
release_symdefs:
138
  bfd_release (abfd, ardata->symdefs);
139
  return FALSE;
140
}
141
 
142
/* Write out an Irix 6 armap.  The Irix 6 tools are supposed to be
143
   able to handle ordinary ELF armaps, but at least on Irix 6.2 the
144
   linker crashes.  */
145
 
146
bfd_boolean
147
bfd_elf64_archive_write_armap (bfd *arch,
148
                               unsigned int elength,
149
                               struct orl *map,
150
                               unsigned int symbol_count,
151
                               int stridx)
152
{
153
  unsigned int ranlibsize = (symbol_count * 8) + 8;
154
  unsigned int stringsize = stridx;
155
  unsigned int mapsize = stringsize + ranlibsize;
156
  file_ptr archive_member_file_ptr;
157
  bfd *current = arch->archive_head;
158
  unsigned int count;
159
  struct ar_hdr hdr;
160
  int padding;
161
  bfd_byte buf[8];
162
 
163
  padding = BFD_ALIGN (mapsize, 8) - mapsize;
164
  mapsize += padding;
165
 
166
  /* work out where the first object file will go in the archive */
167
  archive_member_file_ptr = (mapsize
168
                             + elength
169
                             + sizeof (struct ar_hdr)
170
                             + SARMAG);
171
 
172
  memset (&hdr, ' ', sizeof (struct ar_hdr));
173
  memcpy (hdr.ar_name, "/SYM64/", strlen ("/SYM64/"));
174
  _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
175
                    mapsize);
176
  _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
177
                    time (NULL));
178
  /* This, at least, is what Intel coff sets the values to.: */
179
  _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
180
  _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
181
  _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
182
  memcpy (hdr.ar_fmag, ARFMAG, 2);
183
 
184
  /* Write the ar header for this item and the number of symbols */
185
 
186
  if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
187
      != sizeof (struct ar_hdr))
188
    return FALSE;
189
 
190
  bfd_putb64 ((bfd_vma) symbol_count, buf);
191
  if (bfd_bwrite (buf, 8, arch) != 8)
192
    return FALSE;
193
 
194
  /* Two passes, first write the file offsets for each symbol -
195
     remembering that each offset is on a two byte boundary.  */
196
 
197
  /* Write out the file offset for the file associated with each
198
     symbol, and remember to keep the offsets padded out.  */
199
 
200
  current = arch->archive_head;
201
  count = 0;
202
  while (current != NULL && count < symbol_count)
203
    {
204
      /* For each symbol which is used defined in this object, write out
205
         the object file's address in the archive */
206
 
207
      while (map[count].u.abfd == current)
208
        {
209
          bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf);
210
          if (bfd_bwrite (buf, 8, arch) != 8)
211
            return FALSE;
212
          count++;
213
        }
214
      /* Add size of this archive entry */
215
      archive_member_file_ptr += (arelt_size (current)
216
                                  + sizeof (struct ar_hdr));
217
      /* remember about the even alignment */
218
      archive_member_file_ptr += archive_member_file_ptr % 2;
219
      current = current->archive_next;
220
    }
221
 
222
  /* now write the strings themselves */
223
  for (count = 0; count < symbol_count; count++)
224
    {
225
      size_t len = strlen (*map[count].name) + 1;
226
 
227
      if (bfd_bwrite (*map[count].name, len, arch) != len)
228
        return FALSE;
229
    }
230
 
231
  /* The spec says that this should be padded to an 8 byte boundary.
232
     However, the Irix 6.2 tools do not appear to do this.  */
233
  while (padding != 0)
234
    {
235
      if (bfd_bwrite ("", 1, arch) != 1)
236
        return FALSE;
237
      --padding;
238
    }
239
 
240
  return TRUE;
241
}

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