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libbpf: Make use of BTF field iterator in BPF linker code

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Switch all BPF linker code dealing with iterating BTF type ID and string
offset fields to new btf_field_iter facilities.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20240605001629.4061937-3-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko
2024-06-04 17:16:26 -07:00
committed by Daniel Borkmann
parent 68153bb2ff
commit 2bce2c1cb2
3 changed files with 40 additions and 26 deletions
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4
tools/lib/bpf/libbpf_internal.h
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@@ -515,11 +515,11 @@ enum btf_field_iter_kind {
struct btf_field_desc {
/* once-per-type offsets */
int t_cnt, t_offs[2];
int t_off_cnt, t_offs[2];
/* member struct size, or zero, if no members */
int m_sz;
/* repeated per-member offsets */
int m_cnt, m_offs[1];
int m_off_cnt, m_offs[1];
};
struct btf_field_iter {