diff options
| author |   Yonghong Song <yhs@fb.com> | 2022-06-06 23:26:21 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-06-07 10:20:43 -0700 |
| commit | dffbbdc2d9889670c30e07d05fc0dd712e8ad430 (patch) | |
| tree | ce814a4d6cdd6538fa7c45f5927da6fa93f78d9f /tools/lib/bpf/btf.h | |
| parent | libbpf: Refactor btf__add_enum() for future code sharing (diff) | |
| download | linux-dffbbdc2d9889670c30e07d05fc0dd712e8ad430.tar.xz linux-dffbbdc2d9889670c30e07d05fc0dd712e8ad430.zip | |
libbpf: Add enum64 parsing and new enum64 public API
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>
Diffstat (limited to 'tools/lib/bpf/btf.h')
| -rw-r--r-- | tools/lib/bpf/btf.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h index 951ac7475794..a41463bf9060 100644 --- a/tools/lib/bpf/btf.h +++ b/tools/lib/bpf/btf.h @@ -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); |