/* ELF linking support for BFD.
Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
bfd *input_bfd,
bfd_byte *location)
{
+ int shift;
bfd_vma x = 0;
+ /* Sanity checks. */
+ BFD_ASSERT (chunksz <= sizeof (x)
+ && size >= chunksz
+ && chunksz != 0
+ && (size % chunksz) == 0
+ && input_bfd != NULL
+ && location != NULL);
+
+ if (chunksz == sizeof (x))
+ {
+ BFD_ASSERT (size == chunksz);
+
+ /* Make sure that we do not perform an undefined shift operation.
+ We know that size == chunksz so there will only be one iteration
+ of the loop below. */
+ shift = 0;
+ }
+ else
+ shift = 8 * chunksz;
+
for (; size; size -= chunksz, location += chunksz)
{
switch (chunksz)
{
- default:
- case 0:
- abort ();
case 1:
- x = (x << (8 * chunksz)) | bfd_get_8 (input_bfd, location);
+ x = (x << shift) | bfd_get_8 (input_bfd, location);
break;
case 2:
- x = (x << (8 * chunksz)) | bfd_get_16 (input_bfd, location);
+ x = (x << shift) | bfd_get_16 (input_bfd, location);
break;
case 4:
- x = (x << (8 * chunksz)) | bfd_get_32 (input_bfd, location);
+ x = (x << shift) | bfd_get_32 (input_bfd, location);
break;
- case 8:
#ifdef BFD64
- x = (x << (8 * chunksz)) | bfd_get_64 (input_bfd, location);
-#else
- abort ();
-#endif
+ case 8:
+ x = (x << shift) | bfd_get_64 (input_bfd, location);
break;
+#endif
+ default:
+ abort ();
}
}
return x;
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
bfd_byte *loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rel);
BFD_ASSERT (loc + bed->s->sizeof_rel <= s->contents + s->size);
- bed->s->swap_reloca_out (abfd, rel, loc);
+ bed->s->swap_reloc_out (abfd, rel, loc);
}