diff options
| author | Andrii Nakryiko <andriin@fb.com> | 2019-08-07 14:39:51 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-08-07 14:43:49 -0700 |
| commit | ddc7c3042614e273044f698d2beab25cc3842d45 (patch) | |
| tree | 9e80ac1aba335b955c31b13bd8f96bd960957576 /tools/lib/bpf/libbpf.h | |
| parent | 4cedc0dad9b5bf55c4180c833be35e27e5d6cdbb (diff) | |
libbpf: implement BPF CO-RE offset relocation algorithm
This patch implements the core logic for BPF CO-RE offsets relocations.
Every instruction that needs to be relocated has corresponding
bpf_offset_reloc as part of BTF.ext. Relocations are performed by trying
to match recorded "local" relocation spec against potentially many
compatible "target" types, creating corresponding spec. Details of the
algorithm are noted in corresponding comments in the code.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 8a9d462a6f6d..e8f70977d137 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -92,6 +92,7 @@ LIBBPF_API void bpf_object__close(struct bpf_object *object); struct bpf_object_load_attr { struct bpf_object *obj; int log_level; + const char *target_btf_path; }; /* Load/unload object into/from kernel */ |