On Mon, Nov 30, 2020 at 7:06 PM 彭浩(Richard) <richard.peng@xxxxxxxx> wrote: > > Compile times error: > "Error: failed to load BTF from /mnt/linux/vmlinux: No such file or directory". > This file "/mnt/linux/vmlinux" actually exists, but only because CONFIG_DEBUG_INFO_BTF > is not configured with this error. > > Signed-off-by: Peng Hao <richard.peng@xxxxxxxx> > --- > tools/lib/bpf/btf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c > index 231b07203e3d..228f508fbd04 100644 > --- a/tools/lib/bpf/btf.c > +++ b/tools/lib/bpf/btf.c > @@ -865,7 +865,7 @@ struct btf *btf__parse_elf(const char *path, struct btf_ext **btf_ext) > err = 0; > > if (!btf_data) { > - err = -ENOENT; > + err = -EPROTO; ENOENT as related to "no .BTF section found"... EPROTO would make sense as well, but I don't think we need to really change anything. "Protocol error" isn't very meaningful either... > goto done; > } > btf = btf__new(btf_data->d_buf, btf_data->d_size); > -- > 2.18.4