On Wed, Sep 16, 2020 at 3:38 PM Hao Luo <haoluo@xxxxxxxxxx> wrote: > > If a ksym is defined with a type, libbpf will try to find the ksym's btf > information from kernel btf. If a valid btf entry for the ksym is found, > libbpf can pass in the found btf id to the verifier, which validates the > ksym's type and value. > > Typeless ksyms (i.e. those defined as 'void') will not have such btf_id, > but it has the symbol's address (read from kallsyms) and its value is > treated as a raw pointer. > > Signed-off-by: Hao Luo <haoluo@xxxxxxxxxx> > --- This looks nice and clean, thanks! Acked-by: Andrii Nakryiko <andriin@xxxxxx> > tools/lib/bpf/libbpf.c | 112 ++++++++++++++++++++++++++++++++++++----- > 1 file changed, 99 insertions(+), 13 deletions(-) > [...]
