On Wed, Jul 13, 2022 at 3:37 PM Indu Bhagat <indu.bhagat@xxxxxxxxxx> 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> > --- > 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) there is also extern=2, but I think we should just refer to enum btf_func_linkage, defined in UAPI (include/uapi/linux/btf.h) ? > * ``type``: a BTF_KIND_FUNC_PROTO type > > No additional type data follow ``btf_type``. > -- > 2.31.1 >
