| Message ID | 20201008001025.292064-2-andrii@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 47f7cf6325f7d38e33d3dc38fa55bbe605f5b335 |
| Delegated to: | BPF |
| Headers | show |
| Series | libbpf: auto-resize relocatable LOAD/STORE instructions | expand |
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index faec389c4849..07d62771472f 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -5765,6 +5765,11 @@ bpf_object__relocate_core(struct bpf_object *obj, const char *targ_btf_path) err = -EINVAL; goto out; } + /* no need to apply CO-RE relocation if the program is + * not going to be loaded + */ + if (!prog->load) + continue; err = bpf_core_apply_relo(prog, rec, i, obj->btf, targ_btf, cand_cache);
Bypass CO-RE relocations step for BPF programs that are not going to be loaded. This allows to have BPF programs compiled in and disabled dynamically if kernel is not supposed to provide enough relocation information. In such case, there won't be unnecessary warnings about failed relocations. Fixes: d929758101fc ("libbpf: Support disabling auto-loading BPF programs") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> --- tools/lib/bpf/libbpf.c | 5 +++++ 1 file changed, 5 insertions(+)