unaddressable errors in loader in spec2k6 benchmarks on linux

_From [bruen...@google.com](https://code.google.com/u/109494838902877177630/) on December 14, 2010 17:15:53_

in xalancbmk I'm seeing unaddrs from the loader:
ld-linux.so.2!call_init, ld-linux.so.2!_dl_fixup, etc.

perlbench, after issue #244 , still gets some unaddrs, also from loader:
ld-linux.so.2!_dl_rtld_di_serinfo, ld-linux.so.2!_dl_debug_state,
ld-linux.so.2!calloc (hmmm should investigate this one)

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=245_