diff options
author | Andrey Ignatov <rdna@fb.com> | 2019-12-18 23:44:36 -0800 |
---|---|---|
committer | Alexei Starovoitov <ast@kernel.org> | 2019-12-19 21:22:25 -0800 |
commit | cdbee3839cd91a4577425c43cf064b9523926159 (patch) | |
tree | 8125c9716ca2582a1251363a8cb2a5f4e709fd3d /tools/lib/bpf/libbpf.map | |
parent | 7dd68b3279f1792103d12e69933db3128c6d416e (diff) |
libbpf: Introduce bpf_prog_attach_xattr
Introduce a new bpf_prog_attach_xattr function that, in addition to
program fd, target fd and attach type, accepts an extendable struct
bpf_prog_attach_opts.
bpf_prog_attach_opts relies on DECLARE_LIBBPF_OPTS macro to maintain
backward and forward compatibility and has the following "optional"
attach attributes:
* existing attach_flags, since it's not required when attaching in NONE
mode. Even though it's quite often used in MULTI and OVERRIDE mode it
seems to be a good idea to reduce number of arguments to
bpf_prog_attach_xattr;
* newly introduced attribute of BPF_PROG_ATTACH command: replace_prog_fd
that is fd of previously attached cgroup-bpf program to replace if
BPF_F_REPLACE flag is used.
The new function is named to be consistent with other xattr-functions
(bpf_prog_test_run_xattr, bpf_create_map_xattr, bpf_load_program_xattr).
The struct bpf_prog_attach_opts is supposed to be used with
DECLARE_LIBBPF_OPTS macro.
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/bd6e0732303eb14e4b79cb128268d9e9ad6db208.1576741281.git.rdna@fb.com
Diffstat (limited to 'tools/lib/bpf/libbpf.map')
-rw-r--r-- | tools/lib/bpf/libbpf.map | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index e3a471f38a71..e9713a574243 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -219,6 +219,7 @@ LIBBPF_0.0.7 { bpf_object__detach_skeleton; bpf_object__load_skeleton; bpf_object__open_skeleton; + bpf_prog_attach_xattr; bpf_program__attach; bpf_program__name; btf__align_of; |