pub const _ksiginfo = extern struct {
    signo: i32,
    code: i32,
    errno: i32,
    // 64bit architectures insert 4bytes of padding here, this is done by
    // correctly aligning the reason field
    reason: extern union {
        rt: extern struct {
            pid: pid_t,
            uid: uid_t,
            value: sigval_t,
        },
        child: extern struct {
            pid: pid_t,
            uid: uid_t,
            status: i32,
            utime: clock_t,
            stime: clock_t,
        },
        fault: extern struct {
            addr: *allowzero anyopaque,
            trap: i32,
            trap2: i32,
            trap3: i32,
        },
        poll: extern struct {
            band: i32,
            fd: i32,
        },
        syscall: extern struct {
            sysnum: i32,
            retval: [2]i32,
            @"error": i32,
            args: [8]u64,
        },
        ptrace_state: extern struct {
            pe_report_event: i32,
            option: extern union {
                pe_other_pid: pid_t,
                pe_lwp: lwpid_t,
            },
        },
    } align(@sizeOf(usize)),
}