From 49bd40e8698f140aecbe77d240a0e1abdfcedff2 Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Sun, 18 Dec 2022 06:35:08 +0800 Subject: [PATCH] libbpf: Show error info about missing ".BTF" section Show the real problem instead of just saying "No such file or directory". Now will print below info: libbpf: failed to find '.BTF' ELF section in /home/changbin/work/linux/vmlinux Error: failed to load BTF from /home/changbin/work/linux/vmlinux: No such file or directory Signed-off-by: Changbin Du Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221217223509.88254-2-changbin.du@gmail.com --- src/btf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/btf.c b/src/btf.c index 8cbcef9..b032500 100644 --- a/src/btf.c +++ b/src/btf.c @@ -1003,6 +1003,7 @@ static struct btf *btf_parse_elf(const char *path, struct btf *base_btf, err = 0; if (!btf_data) { + pr_warn("failed to find '%s' ELF section in %s\n", BTF_ELF_SEC, path); err = -ENOENT; goto done; }