pub const ProgLoadAttr = extern struct {
    /// one of ProgType
    prog_type: u32,
    insn_cnt: u32,
    insns: u64,
    license: u64,

    /// verbosity level of verifier
    log_level: u32,

    /// size of user buffer
    log_size: u32,

    /// user supplied buffer
    log_buf: u64,

    /// not used
    kern_version: u32,
    prog_flags: u32,
    prog_name: [obj_name_len]u8,

    /// ifindex of netdev to prep for.
    prog_ifindex: u32,

    /// For some prog types expected attach type must be known at load time to
    /// verify attach type specific parts of prog (context accesses, allowed
    /// helpers, etc).
    expected_attach_type: u32,

    /// fd pointing to BTF type data
    prog_btf_fd: fd_t,

    /// userspace bpf_func_info size
    func_info_rec_size: u32,
    func_info: u64,

    /// number of bpf_func_info records
    func_info_cnt: u32,

    /// userspace bpf_line_info size
    line_info_rec_size: u32,
    line_info: u64,

    /// number of bpf_line_info records
    line_info_cnt: u32,

    /// in-kernel BTF type id to attach to
    attact_btf_id: u32,

    /// 0 to attach to vmlinux
    attach_prog_id: u32,
}