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libbpf: Add bpf_link_create support for multi kprobes

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Adding new kprobe_multi struct to bpf_link_create_opts object
to pass multiple kprobe data to link_create attr uapi.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-9-jolsa@kernel.org
This commit is contained in:
Jiri Olsa
2022-03-16 13:24:14 +01:00
committed by Andrii Nakryiko
parent 42f78dd5ac
commit 2e6e39ef80
2 changed files with 17 additions and 1 deletions
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9
src/bpf.h
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@@ -413,10 +413,17 @@ struct bpf_link_create_opts {
struct {
__u64 bpf_cookie;
} perf_event;
struct {
__u32 flags;
__u32 cnt;
const char **syms;
const unsigned long *addrs;
const __u64 *cookies;
} kprobe_multi;
};
size_t :0;
};
#define bpf_link_create_opts__last_field perf_event
#define bpf_link_create_opts__last_field kprobe_multi.cookies
LIBBPF_API int bpf_link_create(int prog_fd, int target_fd,
enum bpf_attach_type attach_type,