diff options
| author | Alan Maguire <alan.maguire@oracle.com> | 2020-09-28 12:31:09 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-09-28 18:26:58 -0700 |
| commit | eb411377aed9e27835e77ee0710ee8f4649958f3 (patch) | |
| tree | 90908f665c621d466093f55d1cbc4479e0dcd24a /include/linux/btf.h | |
| parent | eb58bbf2e5c7917aa30bf8818761f26bbeeb2290 (diff) | |
bpf: Add bpf_seq_printf_btf helper
A helper is added to allow seq file writing of kernel data
structures using vmlinux BTF. Its signature is
long bpf_seq_printf_btf(struct seq_file *m, struct btf_ptr *ptr,
u32 btf_ptr_size, u64 flags);
Flags and struct btf_ptr definitions/use are identical to the
bpf_snprintf_btf helper, and the helper returns 0 on success
or a negative error value.
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/1601292670-1616-8-git-send-email-alan.maguire@oracle.com
Diffstat (limited to 'include/linux/btf.h')
| -rw-r--r-- | include/linux/btf.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/btf.h b/include/linux/btf.h index 3e5cdc2ba963..024e16ff7dcc 100644 --- a/include/linux/btf.h +++ b/include/linux/btf.h @@ -68,6 +68,8 @@ const struct btf_type *btf_type_id_size(const struct btf *btf, void btf_type_seq_show(const struct btf *btf, u32 type_id, void *obj, struct seq_file *m); +int btf_type_seq_show_flags(const struct btf *btf, u32 type_id, void *obj, + struct seq_file *m, u64 flags); /* * Copy len bytes of string representation of obj of BTF type_id into buf. |