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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 Andrii Nakryiko
parent cece3242fb
commit 13182b94f3
3 changed files with 40 additions and 26 deletions
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4
src/btf.c
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@@ -5267,7 +5267,7 @@ __u32 *btf_field_iter_next(struct btf_field_iter *it)
return NULL;
if (it->m_idx < 0) {
if (it->off_idx < it->desc.t_cnt)
if (it->off_idx < it->desc.t_off_cnt)
return it->p + it->desc.t_offs[it->off_idx++];
/* move to per-member iteration */
it->m_idx = 0;
@@ -5281,7 +5281,7 @@ __u32 *btf_field_iter_next(struct btf_field_iter *it)
return NULL;
}
if (it->off_idx >= it->desc.m_cnt) {
if (it->off_idx >= it->desc.m_off_cnt) {
/* exhausted this member's fields, go to the next member */
it->m_idx++;
it->p += it->desc.m_sz;