btf_struct_seq

static void btf_struct_seq_show(const struct btf *btf, const struct btf_type *t,
                u32 type_id, void *data, u8 bits_offset,
                struct seq_file *m)
{
    const char *seq = BTF_INFO_KIND(t->info) == BTF_KIND_UNION ? "|" : ",";
    const struct btf_member *member;
    u32 i;
 
    seq_puts(m, "{");
    for_each_member(i, t, member) {
        const struct btf_type *member_type = btf_type_by_id(btf,
                                member->type);
        const struct btf_kind_operations *ops;
        u32 member_offset, bitfield_size;
        u32 bytes_offset;
        u8 bits8_offset;
 
        if (i)
            seq_puts(m, seq);
 
        member_offset = btf_member_bit_offset(t, member);
        bitfield_size = btf_member_bitfield_size(t, member);
        bytes_offset = BITS_ROUNDDOWN_BYTES(member_offset);
        bits8_offset = BITS_PER_BYTE_MASKED(member_offset);
        if (bitfield_size) {
            btf_bitfield_seq_show(data + bytes_offset, bits8_offset,
                          bitfield_size, m);
        } else {
            ops = btf_type_ops(member_type);
            ops->seq_show(btf, member_type, member->type,
                      data + bytes_offset, bits8_offset, m);
        }
    }
    seq_puts(m, "}");
}
函数源码
