AT_VECTOR_SIZE_ARCH   15 include/asm-x86/system.h # define AT_VECTOR_SIZE_ARCH 2
AT_VECTOR_SIZE_ARCH   17 include/asm-x86/system.h # define AT_VECTOR_SIZE_ARCH 1
AT_VECTOR_SIZE_ARCH   18 include/linux/mm_types.h #define AT_VECTOR_SIZE_ARCH 0