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[213.175.37.12]) by smtp.gmail.com with ESMTPSA id 21sm11279609ejx.83.2022.01.04.00.10.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Jan 2022 00:10:45 -0800 (PST) From: Jiri Olsa X-Google-Original-From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Masami Hiramatsu Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, lkml , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Steven Rostedt , "Naveen N. Rao" , Anil S Keshavamurthy , "David S. Miller" Subject: [PATCH 10/13] libbpf: Add bpf_link_create support for multi kprobes Date: Tue, 4 Jan 2022 09:09:40 +0100 Message-Id: <20220104080943.113249-11-jolsa@kernel.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220104080943.113249-1-jolsa@kernel.org> References: <20220104080943.113249-1-jolsa@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Adding new kprobe struct in bpf_link_create_opts object to pass multi kprobe data to link_create attr API. Signed-off-by: Jiri Olsa --- tools/lib/bpf/bpf.c | 5 +++++ tools/lib/bpf/bpf.h | 7 ++++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 9b64eed2b003..40cad575ad62 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -848,6 +848,11 @@ int bpf_link_create(int prog_fd, int target_fd, if (!OPTS_ZEROED(opts, perf_event)) return libbpf_err(-EINVAL); break; + case BPF_TRACE_RAW_KPROBE: + attr.link_create.kprobe.addrs = OPTS_GET(opts, kprobe.addrs, 0); + attr.link_create.kprobe.cnt = OPTS_GET(opts, kprobe.cnt, 0); + attr.link_create.kprobe.bpf_cookie = OPTS_GET(opts, kprobe.bpf_cookie, 0); + break; default: if (!OPTS_ZEROED(opts, flags)) return libbpf_err(-EINVAL); diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 00619f64a040..9611023138b1 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -298,10 +298,15 @@ struct bpf_link_create_opts { struct { __u64 bpf_cookie; } perf_event; + struct { + __u64 addrs; + __u32 cnt; + __u64 bpf_cookie; + } kprobe; }; size_t :0; }; -#define bpf_link_create_opts__last_field perf_event +#define bpf_link_create_opts__last_field kprobe.bpf_cookie LIBBPF_API int bpf_link_create(int prog_fd, int target_fd, enum bpf_attach_type attach_type, -- 2.33.1