[Patch, microblaze, gas, bfd] PR/14736 Correct adjustment of global symbols after relax

[David Holsgrove]

Fixup symbol sizes after linker relaxation

Correct an off-by one when comparing relaxation addresses
with symbol start.

Also addresses PR/14736 where clang gave warning;
use of unary operator that may be intended as
compound assignment (-=)

binutils/bfd/Changelog

 2012-11-22  Edgar E. Iglesias <edgar.iglesias@gmail.com>

          * elf32-microblaze.c (calc_size_fixup): New
            (calc_fixup): Use calc_size_fixup to adjust
            object size

binutils/gas/testsuite/Changelog

 2012-11-22  David Holsgrove  <david.holsgrove@xilinx.com>

          * gas/microblaze/relax_size.exp: New file - test
            object size after linker relaxation
          * gas/microblaze/relax_size.s: Likewise
          * gas/microblaze/relax_size.elf: Likewise

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