diff mbox series

[v3,1/2] libbpf: show error info about missing ".BTF" section

Message ID 20221217223509.88254-2-changbin.du@gmail.com
State Accepted
Commit e6b4e1d759d3bfb7cb84c87cc8f1858da7db8dea
Headers show
Series bpftool: improve error handing for missing .BTF section | expand

Commit Message

Changbin Du Dec. 17, 2022, 10:35 p.m. UTC
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 <changbin.du@gmail.com>
---
 tools/lib/bpf/btf.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 71e165b09ed5..dd2badf1a54e 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("failed to find '%s' ELF section in %s\n", BTF_ELF_SEC, path);
 		err = -ENOENT;
 		goto done;
 	}