gas/ * config/tc-csky.c (md_begin): Add version flag in eflag. include/ * opcode/csky.h (CSKY_VERSION_V1): Define, currently used. (CSKY_VERSION_V2): Define. (CSKY_VERSION_V3): Define. Change-Id: Iafe3a9ce6fe544880a225b9fae439275a828bb34