On 07/13, Indu Bhagat wrote:
The vlen bits in the BTF type of kind BTF_KIND_FUNC are used to convey the
linkage information for functions.
Signed-off-by: Indu Bhagat <indu.bhagat@xxxxxxxxxx>
Reviewed-by: Stanislav Fomichev <sdf@xxxxxxxxxx>
Judging by:
static inline u16 btf_func_linkage(const struct btf_type *t)
{
return BTF_INFO_VLEN(t->info);
}
---
Documentation/bpf/btf.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst
index f49aeef62d0c..b3a9d5ac882c 100644
--- a/Documentation/bpf/btf.rst
+++ b/Documentation/bpf/btf.rst
@@ -369,7 +369,7 @@ No additional type data follow ``btf_type``.
* ``name_off``: offset to a valid C identifier
* ``info.kind_flag``: 0
* ``info.kind``: BTF_KIND_FUNC
- * ``info.vlen``: 0
+ * ``info.vlen``: linkage information (static=0, global=1)
* ``type``: a BTF_KIND_FUNC_PROTO type
No additional type data follow ``btf_type``.
--
2.31.1
