__X32_SYSCALL_BIT   13 arch/x86/include/uapi/asm/unistd.h #define __X32_SYSCALL_BIT	0x40000000
__X32_SYSCALL_BIT    6 tools/arch/x86/include/uapi/asm/unistd.h #define __X32_SYSCALL_BIT	0x40000000