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tools/bpf: Support new uapi for map element bpf iterator

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Previous commit adjusted kernel uapi for map
element bpf iterator. This patch adjusted libbpf API
due to uapi change. bpftool and bpf_iter selftests
are also changed accordingly.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200805055058.1457623-1-yhs@fb.com
This commit is contained in:
Yonghong Song
2020-08-04 22:50:58 -07:00
committed by Alexei Starovoitov
parent 5e7b30205c
commit 74fc097de3
7 changed files with 58 additions and 25 deletions
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3
tools/lib/bpf/bpf.c
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@ -599,6 +599,9 @@ int bpf_link_create(int prog_fd, int target_fd,
attr.link_create.target_fd = target_fd;
attr.link_create.attach_type = attach_type;
attr.link_create.flags = OPTS_GET(opts, flags, 0);
attr.link_create.iter_info =
ptr_to_u64(OPTS_GET(opts, iter_info, (void *)0));
attr.link_create.iter_info_len = OPTS_GET(opts, iter_info_len, 0);
return sys_bpf(BPF_LINK_CREATE, &attr, sizeof(attr));
}