Messages in this thread | | | From | Andrii Nakryiko <> | Date | Wed, 30 Nov 2022 16:55:13 -0800 | Subject | Re: [PATCH v2 1/2] libbpf: show error info about missing ".BTF" section |
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On Tue, Nov 29, 2022 at 5:42 AM Changbin Du <changbin.du@gmail.com> wrote: > > Show the real problem instead of just saying "No such file or directory". > > Now will print below info: > libbpf: can not find '.BTF' section > Error: failed to load BTF from /home/changbin/work/linux/vmlinux: No such file or directory > > Signed-off-by: Changbin Du <changbin.du@gmail.com> > --- > tools/lib/bpf/btf.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c > index d88647da2c7f..1adc0f6019a0 100644 > --- a/tools/lib/bpf/btf.c > +++ b/tools/lib/bpf/btf.c > @@ -990,6 +990,7 @@ static struct btf *btf_parse_elf(const char *path, struct btf *base_btf, > err = 0; > > if (!btf_data) { > + pr_warn("can not find '%s' section\n", BTF_ELF_SEC);
let's use consistent form of error messages:
pr_warn("failed to find '%s' ELF section in %s\n", BTF_ELF_SEC, path);
> err = -ENOENT; > goto done; > } > -- > 2.37.2 >
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