/* Support for memory-mapped windows into a BFD.
- Copyright 1995, 1996, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 2001, 2002, 2003, 2005, 2007, 2008
+ Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
-/* Currently, if USE_MMAP is undefined, none if the window stuff is
- used. Okay, so it's mis-named. At least the command-line option
- "--without-mmap" is more obvious than "--without-windows" or some
- such. */
+/* Currently, if USE_MMAP is undefined, none of the window stuff is
+ used. Enabled by --with-mmap. */
#ifdef USE_MMAP
file_ptr file_offset, offset2;
size_t real_size;
int fd;
- FILE *f;
/* Find the real file and the real offset into it. */
while (abfd->my_archive != NULL)
offset += abfd->origin;
abfd = abfd->my_archive;
}
- f = bfd_cache_lookup (abfd);
- fd = fileno (f);
+
+ /* Seek into the file, to ensure it is open if cacheable. */
+ if (abfd->iostream == NULL
+ && (abfd->iovec == NULL
+ || abfd->iovec->bseek (abfd, offset, SEEK_SET) != 0))
+ return FALSE;
+ fd = fileno ((FILE *) abfd->iostream);
/* Compute offsets and size for mmap and for the user's data. */
offset2 = offset % pagesize;
if (debug_windows)
fprintf (stderr, "\n\t%s(%6ld)",
i->data ? "realloc" : " malloc", (long) size_to_alloc);
- i->data = bfd_realloc (i->data, size_to_alloc);
+ i->data = bfd_realloc_or_free (i->data, size_to_alloc);
if (debug_windows)
fprintf (stderr, "\t-> %p\n", i->data);
- i->refcount = 1;
if (i->data == NULL)
{
if (size_to_alloc == 0)
return TRUE;
return FALSE;
}
+ i->refcount = 1;
if (bfd_seek (abfd, offset, SEEK_SET) != 0)
return FALSE;
i->size = bfd_bread (i->data, size, abfd);