This isn't everything; I've missed out those x86 files that are Change-Id: Idb7bb1a68796d6c0b70ea2b5c3300e49da6c62d2
It adds two functions sigsetjmp and siglongjmp that fix compiling errors in bluetooth and mksh. Copy directly from sigsetjmp.S of OpenBSD. Change-Id: I4696f82ee6f85d1c93cbdd3c9e40f4917d50f3a6