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libbpf: Unify low-level map creation APIs w/ new bpf_map_create()

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Mark the entire zoo of low-level map creation APIs for deprecation in
libbpf 0.7 ([0]) and introduce a new bpf_map_create() API that is
OPTS-based (and thus future-proof) and matches the BPF_MAP_CREATE
command name.

While at it, ensure that gen_loader sends map_extra field. Also remove
now unneeded btf_key_type_id/btf_value_type_id logic that libbpf is
doing anyways.

  [0] Closes: https://github.com/libbpf/libbpf/issues/282

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211124193233.3115996-2-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko
2021-11-24 11:32:30 -08:00
committed by Andrii Nakryiko
parent 5c31bcf220
commit 6cfb97c561
7 changed files with 124 additions and 151 deletions
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src/libbpf.map
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@@ -391,6 +391,7 @@ LIBBPF_0.6.0 {
global:
bpf_map__map_extra;
bpf_map__set_map_extra;
bpf_map_create;
bpf_object__next_map;
bpf_object__next_program;
bpf_object__prev_map;