mirror/libbpf
1
0
Fork 0
mirror of https://github.com/netdata/libbpf.git synced 2026-03-31 13:49:07 +08:00
Code Issues Packages Projects Releases Wiki Activity

libbpf: Add enum64 parsing and new enum64 public API

Browse Source 
Add enum64 parsing support and two new enum64 public APIs:
  btf__add_enum64
  btf__add_enum64_value

Also add support of signedness for BTF_KIND_ENUM. The
BTF_KIND_ENUM API signatures are not changed. The signedness
will be changed from unsigned to signed if btf__add_enum_value()
finds any negative values.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220607062621.3719391-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song
2022-06-06 23:26:21 -07:00
committed by Andrii Nakryiko
parent 25fd7a1cf5
commit c3f8eecb16
3 changed files with 117 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/btf.h
View File

@@ -215,6 +215,8 @@ LIBBPF_API int btf__add_field(struct btf *btf, const char *name, int field_type_
/* enum construction APIs */
LIBBPF_API int btf__add_enum(struct btf *btf, const char *name, __u32 bytes_sz);
LIBBPF_API int btf__add_enum_value(struct btf *btf, const char *name, __s64 value);
LIBBPF_API int btf__add_enum64(struct btf *btf, const char *name, __u32 bytes_sz, bool is_signed);
LIBBPF_API int btf__add_enum64_value(struct btf *btf, const char *name, __u64 value);
enum btf_fwd_kind {
BTF_FWD_STRUCT = 0,
@@ -454,6 +456,11 @@ static inline bool btf_is_enum(const struct btf_type *t)
return btf_kind(t) == BTF_KIND_ENUM;
}
static inline bool btf_is_enum64(const struct btf_type *t)
{
return btf_kind(t) == BTF_KIND_ENUM64;
}
static inline bool btf_is_fwd(const struct btf_type *t)
{
return btf_kind(t) == BTF_KIND_FWD;
@@ -549,6 +556,11 @@ static inline struct btf_enum *btf_enum(const struct btf_type *t)
return (struct btf_enum *)(t + 1);
}
static inline struct btf_enum64 *btf_enum64(const struct btf_type *t)
{
return (struct btf_enum64 *)(t + 1);
}
static inline struct btf_member *btf_members(const struct btf_type *t)
{
return (struct btf_member *)(t + 1);