Check for the program headers alignment of the ELF images before dereferencing. Unaligned access could cause panic on strict alignment architectures.
Check for the program headers alignment of the ELF images before
dereferencing. Unaligned access could cause panic on strict alignment
architectures.

Reviewed by:	marcel, marius (also tested on sparc64, thanks !)
MFC after:	3 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase