core: handle common linux signals
core: handle common linux signals

Former-commit-id: 53d4b1bfa3265272a879dce7c7e5d3c8cd2ee0e3
Former-commit-id: cc8b8a00a74165fb1d932c88f6209a082bba3962
torhve/ivar2,torhve/ivar2,torhve/ivar2,haste/ivar2