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| author | Ben Olson <matthew.olson@intel.com> | 2024-11-26 23:08:45 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-12-02 19:41:51 +0300 |
| commit | 9a17db586d722c0875f7a0580c438dc80afee1e7 (patch) | |
| tree | 580c7ae0b82681db2d7a55cec76aaff791d0d8d1 /tools/lib | |
| parent | adf120e1bedd9f27339cd773c6b474cc788f68f5 (diff) | |
| download | linux-9a17db586d722c0875f7a0580c438dc80afee1e7.tar.xz | |
libbpf: Improve debug message when the base BTF cannot be found
When running `bpftool` on a kernel module installed in `/lib/modules...`,
this error is encountered if the user does not specify `--base-btf` to
point to a valid base BTF (e.g. usually in `/sys/kernel/btf/vmlinux`).
However, looking at the debug output to determine the cause of the error
simply says `Invalid BTF string section`, which does not point to the
actual source of the error. This just improves that debug message to tell
users what happened.
Signed-off-by: Ben Olson <matthew.olson@intel.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/Z0YqzQ5lNz7obQG7@bolson-desk
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/btf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c index 12468ae0d573..a4ae2df68b91 100644 --- a/tools/lib/bpf/btf.c +++ b/tools/lib/bpf/btf.c @@ -283,7 +283,7 @@ static int btf_parse_str_sec(struct btf *btf) return -EINVAL; } if (!btf->base_btf && start[0]) { - pr_debug("Invalid BTF string section\n"); + pr_debug("Malformed BTF string section, did you forget to provide base BTF?\n"); return -EINVAL; } return 0; |