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libbpf: Add enum64 relocation support

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The enum64 relocation support is added. The bpf local type
could be either enum or enum64 and the remote type could be
either enum or enum64 too. The all combinations of local enum/enum64
and remote enum/enum64 are supported.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062647.3721719-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song
2022-06-06 23:26:47 -07:00
committed by Andrii Nakryiko
parent 3f9d041e19
commit 416351822c
3 changed files with 48 additions and 20 deletions
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7
src/btf.h
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@@ -537,6 +537,13 @@ static inline bool btf_is_any_enum(const struct btf_type *t)
return btf_is_enum(t) || btf_is_enum64(t);
}
static inline bool btf_kind_core_compat(const struct btf_type *t1,
const struct btf_type *t2)
{
return btf_kind(t1) == btf_kind(t2) ||
(btf_is_any_enum(t1) && btf_is_any_enum(t2));
}
static inline __u8 btf_int_encoding(const struct btf_type *t)
{
return BTF_INT_ENCODING(*(__u32 *)(t + 1));