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bpf: Define enum bpf_core_relo_kind as uapi.

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enum bpf_core_relo_kind is generated by llvm and processed by libbpf.
It's a de-facto uapi.
With CO-RE in the kernel the bpf_core_relo_kind values become uapi de-jure.
Also rename them with BPF_CORE_ prefix to distinguish from conflicting names in
bpf_core_read.h. The enums bpf_field_info_kind, bpf_type_id_kind,
bpf_type_info_kind, bpf_enum_value_kind are passing different values from bpf
program into llvm.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211201181040.23337-5-alexei.starovoitov@gmail.com
This commit is contained in:
Alexei Starovoitov 2021-12-01 10:10:27 -08:00 • committed by Andrii Nakryiko
parent 29db4bea1d
commit 46334a0cd2
5 changed files with 82 additions and 60 deletions
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2
tools/lib/bpf/libbpf.c
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@ -5523,7 +5523,7 @@ static int bpf_core_apply_relo(struct bpf_program *prog,
return -ENOTSUP;
}
if (relo->kind != BPF_TYPE_ID_LOCAL &&
if (relo->kind != BPF_CORE_TYPE_ID_LOCAL &&
!hashmap__find(cand_cache, type_key, (void **)&cands)) {
cands = bpf_core_find_cands(prog->obj, local_btf, local_id);
if (IS_ERR(cands)) {