[PATCH v2 bpf-next 1/4] libbpf: add btf_has_size() and btf_int() inlines
From: Alan Maguire <hidden>
Date: 2021-01-17 22:26:37
Also in:
linux-kselftest, lkml, netdev
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
BTF type data dumping will use them in later patches, and they are useful generally when handling BTF data. Signed-off-by: Alan Maguire <redacted> --- tools/lib/bpf/btf.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index 1237bcd..0c48f2e 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h@@ -294,6 +294,20 @@ static inline bool btf_is_datasec(const struct btf_type *t) return btf_kind(t) == BTF_KIND_DATASEC; } +static inline bool btf_has_size(const struct btf_type *t) +{ + switch (BTF_INFO_KIND(t->info)) { + case BTF_KIND_INT: + case BTF_KIND_STRUCT: + case BTF_KIND_UNION: + case BTF_KIND_ENUM: + case BTF_KIND_DATASEC: + return true; + default: + return false; + } +} + static inline __u8 btf_int_encoding(const struct btf_type *t) { return BTF_INT_ENCODING(*(__u32 *)(t + 1));
@@ -309,6 +323,11 @@ static inline __u8 btf_int_bits(const struct btf_type *t) return BTF_INT_BITS(*(__u32 *)(t + 1)); } +static inline __u32 btf_int(const struct btf_type *t) +{ + return *(__u32 *)(t + 1); +} + static inline struct btf_array *btf_array(const struct btf_type *t) { return (struct btf_array *)(t + 1);
--
1.8.3.1