| BTF encoder: |
| |
| - Inject kfunc decl tags into BTF from the BTF IDs ELF section in the Linux |
| kernel vmlinux file. |
| |
| This allows tools such as bpftools and pfunct to enumerate the available kfuncs |
| and to gets its function signature, the type of its return and of its |
| arguments. See the example in the BTF loader changes description, below. |
| |
| - Support parallel reproducible builds, where it doesn't matter how many |
| threads are used, the end BTF encoding result is the same. |
| |
| - Sanitize unsupported DWARF int type with greater-than-16 byte, as BTF doesn't |
| support it. |
| |
| BTF loader: |
| |
| - Initial support for BTF_KIND_DECL_TAG: |
| |
| $ pfunct --prototypes -F btf vmlinux.btf.decl_tag,decl_tag_kfuncs | grep ^bpf_kfunc | head |
| bpf_kfunc void cubictcp_init(struct sock * sk); |
| bpf_kfunc void cubictcp_cwnd_event(struct sock * sk, enum tcp_ca_event event); |
| bpf_kfunc void cubictcp_cong_avoid(struct sock * sk, u32 ack, u32 acked); |
| bpf_kfunc u32 cubictcp_recalc_ssthresh(struct sock * sk); |
| bpf_kfunc void cubictcp_state(struct sock * sk, u8 new_state); |
| bpf_kfunc void cubictcp_acked(struct sock * sk, const struct ack_sample * sample); |
| bpf_kfunc int bpf_iter_css_new(struct bpf_iter_css * it, struct cgroup_subsys_state * start, unsigned int flags); |
| bpf_kfunc struct cgroup_subsys_state * bpf_iter_css_next(struct bpf_iter_css * it); |
| bpf_kfunc void bpf_iter_css_destroy(struct bpf_iter_css * it); |
| bpf_kfunc s64 bpf_map_sum_elem_count(const struct bpf_map * map); |
| $ pfunct --prototypes -F btf vmlinux.btf.decl_tag,decl_tag_kfuncs | grep ^bpf_kfunc | wc -l |
| 116 |
| $ |
| |
| pretty printing: |
| |
| - Fix hole discovery with inheritance in C++. |
| |
| Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
