am 83362689: merge from open-source master

Merge commit '83362689f5b1f6393d376d242fe29541b63ead2d'

* commit '83362689f5b1f6393d376d242fe29541b63ead2d':
  added and modified linker to support SuperH architecture
  Add the BSD sys_signame array.
  added and modified bionic code to support SuperH architecture