Re: [PATCH bpf-next v3 16/21] tools/libbpf: add bpf_iter support

2020-05-08 Thread Andrii Nakryiko
On Wed, May 6, 2020 at 10:42 PM Yonghong Song wrote: > > Two new libbpf APIs are added to support bpf_iter: > - bpf_program__attach_iter > Given a bpf program and additional parameters, which is > none now, returns a bpf_link. > - bpf_iter_create > syscall level API to create a bpf

[PATCH bpf-next v3 16/21] tools/libbpf: add bpf_iter support

2020-05-06 Thread Yonghong Song
Two new libbpf APIs are added to support bpf_iter: - bpf_program__attach_iter Given a bpf program and additional parameters, which is none now, returns a bpf_link. - bpf_iter_create syscall level API to create a bpf iterator. The macro BPF_SEQ_PRINTF are also introduced. The format