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libbpf: Add btf__type_cnt() and btf__raw_data() APIs

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Add btf__type_cnt() and btf__raw_data() APIs and deprecate
btf__get_nr_type() and btf__get_raw_data() since the old APIs
don't follow the libbpf naming convention for getters which
omit 'get' in the name (see [0]). btf__raw_data() is just an
alias to the existing btf__get_raw_data(). btf__type_cnt()
now returns the number of all types of the BTF object
including 'void'.

  [0] Closes: https://github.com/libbpf/libbpf/issues/279

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211022130623.1548429-2-hengqi.chen@gmail.com
This commit is contained in:
Hengqi Chen
2021-10-22 21:06:19 +08:00
committed by Andrii Nakryiko
parent eb10610a3b
commit 596c9a2d77
6 changed files with 64 additions and 50 deletions
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src/libbpf.map
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@@ -395,4 +395,6 @@ LIBBPF_0.6.0 {
bpf_object__prev_program;
btf__add_btf;
btf__add_decl_tag;
btf__raw_data;
btf__type_cnt;
} LIBBPF_0.5.0;