diff options
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
-rw-r--r-- | tools/lib/bpf/libbpf.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 55b97b208754..2e3eb3614c40 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -529,6 +529,57 @@ bpf_program__attach_kprobe_multi_opts(const struct bpf_program *prog, const char *pattern, const struct bpf_kprobe_multi_opts *opts); +struct bpf_uprobe_multi_opts { + /* size of this struct, for forward/backward compatibility */ + size_t sz; + /* array of function symbols to attach to */ + const char **syms; + /* array of function addresses to attach to */ + const unsigned long *offsets; + /* optional, array of associated ref counter offsets */ + const unsigned long *ref_ctr_offsets; + /* optional, array of associated BPF cookies */ + const __u64 *cookies; + /* number of elements in syms/addrs/cookies arrays */ + size_t cnt; + /* create return uprobes */ + bool retprobe; + size_t :0; +}; + +#define bpf_uprobe_multi_opts__last_field retprobe + +/** + * @brief **bpf_program__attach_uprobe_multi()** attaches a BPF program + * to multiple uprobes with uprobe_multi link. + * + * User can specify 2 mutually exclusive set of inputs: + * + * 1) use only path/func_pattern/pid arguments + * + * 2) use path/pid with allowed combinations of + * syms/offsets/ref_ctr_offsets/cookies/cnt + * + * - syms and offsets are mutually exclusive + * - ref_ctr_offsets and cookies are optional + * + * + * @param prog BPF program to attach + * @param pid Process ID to attach the uprobe to, 0 for self (own process), + * -1 for all processes + * @param binary_path Path to binary + * @param func_pattern Regular expression to specify functions to attach + * BPF program to + * @param opts Additional options (see **struct bpf_uprobe_multi_opts**) + * @return 0, on success; negative error code, otherwise + */ +LIBBPF_API struct bpf_link * +bpf_program__attach_uprobe_multi(const struct bpf_program *prog, + pid_t pid, + const char *binary_path, + const char *func_pattern, + const struct bpf_uprobe_multi_opts *opts); + struct bpf_ksyscall_opts { /* size of this struct, for forward/backward compatibility */ size_t sz; |