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authorJiri Olsa <[email protected]>2024-04-30 11:28:27 +0000
committerAndrii Nakryiko <[email protected]>2024-04-30 16:45:53 +0000
commit2ca178f02b2f4e523e970894def16282e4adbc39 (patch)
treed4e662ddc8bf58b47007e8da3e2ee2c2853e337a /tools/lib/bpf/bpf.c
parentbpf: Add support for kprobe session cookie (diff)
downloadkernel-2ca178f02b2f4e523e970894def16282e4adbc39.tar.gz
kernel-2ca178f02b2f4e523e970894def16282e4adbc39.zip
libbpf: Add support for kprobe session attach
Adding support to attach program in kprobe session mode with bpf_program__attach_kprobe_multi_opts function. Adding session bool to bpf_kprobe_multi_opts struct that allows to load and attach the bpf program via kprobe session. the attachment to create kprobe multi session. Also adding new program loader section that allows: SEC("kprobe.session/bpf_fentry_test*") and loads/attaches kprobe program as kprobe session. Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/lib/bpf/bpf.c')
-rw-r--r--tools/lib/bpf/bpf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index c9f4e04f38fe..466a29d80124 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -766,6 +766,7 @@ int bpf_link_create(int prog_fd, int target_fd,
return libbpf_err(-EINVAL);
break;
case BPF_TRACE_KPROBE_MULTI:
+ case BPF_TRACE_KPROBE_SESSION:
attr.link_create.kprobe_multi.flags = OPTS_GET(opts, kprobe_multi.flags, 0);
attr.link_create.kprobe_multi.cnt = OPTS_GET(opts, kprobe_multi.cnt, 0);
attr.link_create.kprobe_multi.syms = ptr_to_u64(OPTS_GET(opts, kprobe_multi.syms, 0));