On Wed, Nov 30, 2022 at 04:55:13PM -0800, Andrii Nakryiko wrote:
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);
okay.
err = -ENOENT; goto done; }-- 2.37.2