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| author | Andrey Ignatov | 2019-02-15 00:01:43 +0100 |
|---|---|---|
| committer | Daniel Borkmann | 2019-02-15 15:20:54 +0100 |
| commit | 789f6bab849e04ea029c09b81dc8401dc0268cf9 (patch) | |
| tree | 376d9ca0066237549b9fca7c81001bbf517f9967 /tools/lib/bpf/libbpf.c | |
| parent | libbpf: Introduce bpf_map__resize (diff) | |
| download | kernel-qcow2-linux-789f6bab849e04ea029c09b81dc8401dc0268cf9.tar.gz kernel-qcow2-linux-789f6bab849e04ea029c09b81dc8401dc0268cf9.tar.xz kernel-qcow2-linux-789f6bab849e04ea029c09b81dc8401dc0268cf9.zip | |
libbpf: Introduce bpf_object__btf
Add new accessor for bpf_object to get opaque struct btf * from it.
struct btf * is needed for all operations with BTF and it's present in
bpf_object. The only thing missing is a way to get it.
Example use-case is to get BTF key_type_id and value_type_id for a map in
bpf_object. It can be done with btf__get_map_kv_tids() but that function
requires struct btf *.
Similar API can be added for struct btf_ext but no use-case for it yet.
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 9597d4dace34..b38dcbe7460a 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -2331,6 +2331,11 @@ unsigned int bpf_object__kversion(struct bpf_object *obj) return obj ? obj->kern_version : 0; } +struct btf *bpf_object__btf(struct bpf_object *obj) +{ + return obj ? obj->btf : NULL; +} + int bpf_object__btf_fd(const struct bpf_object *obj) { return obj->btf ? btf__fd(obj->btf) : -1; |