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libbpf: Introduce bpf_{btf,link,map,prog}_get_info_by_fd()

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These are type-safe wrappers around bpf_obj_get_info_by_fd(). They
found one problem in selftests, and are also useful for adding
Memory Sanitizer annotations.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230214231221.249277-2-iii@linux.ibm.com
This commit is contained in:
Ilya Leoshkevich
2023-02-15 00:12:14 +01:00
committed by yonghong-song
parent ea28429902
commit 30f6bc3c0a
3 changed files with 34 additions and 0 deletions
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5
src/libbpf.map
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@@ -384,4 +384,9 @@ LIBBPF_1.1.0 {
} LIBBPF_1.0.0;
LIBBPF_1.2.0 {
global:
bpf_btf_get_info_by_fd;
bpf_link_get_info_by_fd;
bpf_map_get_info_by_fd;
bpf_prog_get_info_by_fd;
} LIBBPF_1.1.0;