diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2020-12-03 21:46:32 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-12-04 02:38:21 +0100 |
| commit | 91abb4a6d79df6c4dcd86d85632df53c8cca2dcf (patch) | |
| tree | 557fc11c841adeb6784e7baa5cda3c95b6381073 /tools/lib/bpf/bpf.c | |
| parent | libbpf: Factor out low-level BPF program loading helper (diff) | |
| download | linux-91abb4a6d79df6c4dcd86d85632df53c8cca2dcf.tar.xz linux-91abb4a6d79df6c4dcd86d85632df53c8cca2dcf.zip | |
libbpf: Support attachment of BPF tracing programs to kernel modules
Teach libbpf to search for BTF types in kernel modules for tracing BPF
programs. This allows attachment of raw_tp/fentry/fexit/fmod_ret/etc BPF
program types to tracepoints and functions in kernel modules.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-13-andrii@kernel.org
Diffstat (limited to 'tools/lib/bpf/bpf.c')
| -rw-r--r-- | tools/lib/bpf/bpf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 5d681ce32b37..bba48ff4c5c0 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -231,8 +231,11 @@ int libbpf__bpf_prog_load(const struct bpf_prog_load_params *load_attr) attr.prog_type = load_attr->prog_type; attr.expected_attach_type = load_attr->expected_attach_type; + if (load_attr->attach_prog_fd) + attr.attach_prog_fd = load_attr->attach_prog_fd; + else + attr.attach_btf_obj_fd = load_attr->attach_btf_obj_fd; attr.attach_btf_id = load_attr->attach_btf_id; - attr.attach_prog_fd = load_attr->attach_prog_fd; attr.prog_ifindex = load_attr->prog_ifindex; attr.kern_version = load_attr->kern_version; |