From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05C05A932 for ; Fri, 30 Jun 2023 08:36:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B8BEC433C0; Fri, 30 Jun 2023 08:36:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688114173; bh=Xppr0OLoc0Y5WpjZBukLc1k/JAPv214hJBEM50YhaxU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TPtVABjwB7oneVabYgqIdn+AupbZlIkcOSKEoip+tFP2xGTQWgsuZhy2DOZ69YFcf YTLkKsUiqoes3Gbxsy59YMOdNFmGlXJDEgp/8pDQNd9y+DjkmJPBAjRyNLYsrIlsYN 4HgrMZhK+rOCiqFt0IpKo3VY71+9yRvKp0Z81SPSJRW7opNJVMegM95VojDyfzuXi+ Eo2asnyqyrmP1S2aIJbL6OGUjK129Bh2epD8oIpeGtFEGnDPK93rAKDrIW1mtPJ2cX Y92VMmhYTr7cNzaR7JFBrzsWwvdY1IG3fNqITwULBqXkUTvYDB+Y+jCib5F/+xQJ7f JGsEAhcLufCYg== From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: bpf@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo Subject: [PATCHv3 bpf-next 12/26] libbpf: Add bpf_link_create support for multi uprobes Date: Fri, 30 Jun 2023 10:33:30 +0200 Message-ID: <20230630083344.984305-13-jolsa@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230630083344.984305-1-jolsa@kernel.org> References: <20230630083344.984305-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adding new uprobe_multi struct to bpf_link_create_opts object to pass multiple uprobe data to link_create attr uapi. Acked-by: Andrii Nakryiko Signed-off-by: Jiri Olsa --- tools/lib/bpf/bpf.c | 11 +++++++++++ tools/lib/bpf/bpf.h | 11 ++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index ed86b37d8024..0fd35c91f50c 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -733,6 +733,17 @@ int bpf_link_create(int prog_fd, int target_fd, if (!OPTS_ZEROED(opts, kprobe_multi)) return libbpf_err(-EINVAL); break; + case BPF_TRACE_UPROBE_MULTI: + attr.link_create.uprobe_multi.flags = OPTS_GET(opts, uprobe_multi.flags, 0); + attr.link_create.uprobe_multi.cnt = OPTS_GET(opts, uprobe_multi.cnt, 0); + attr.link_create.uprobe_multi.path = ptr_to_u64(OPTS_GET(opts, uprobe_multi.path, 0)); + attr.link_create.uprobe_multi.offsets = ptr_to_u64(OPTS_GET(opts, uprobe_multi.offsets, 0)); + attr.link_create.uprobe_multi.ref_ctr_offsets = ptr_to_u64(OPTS_GET(opts, uprobe_multi.ref_ctr_offsets, 0)); + attr.link_create.uprobe_multi.cookies = ptr_to_u64(OPTS_GET(opts, uprobe_multi.cookies, 0)); + attr.link_create.uprobe_multi.pid = OPTS_GET(opts, uprobe_multi.pid, 0); + if (!OPTS_ZEROED(opts, uprobe_multi)) + return libbpf_err(-EINVAL); + break; case BPF_TRACE_FENTRY: case BPF_TRACE_FEXIT: case BPF_MODIFY_RETURN: diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 9aa0ee473754..82979b4f2769 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -346,13 +346,22 @@ struct bpf_link_create_opts { const unsigned long *addrs; const __u64 *cookies; } kprobe_multi; + struct { + __u32 flags; + __u32 cnt; + const char *path; + const unsigned long *offsets; + const unsigned long *ref_ctr_offsets; + const __u64 *cookies; + __u32 pid; + } uprobe_multi; struct { __u64 cookie; } tracing; }; size_t :0; }; -#define bpf_link_create_opts__last_field kprobe_multi.cookies +#define bpf_link_create_opts__last_field uprobe_multi.pid LIBBPF_API int bpf_link_create(int prog_fd, int target_fd, enum bpf_attach_type attach_type, -- 2.41.0