From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33DEDC43441 for ; Thu, 22 Nov 2018 07:02:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF32C20864 for ; Thu, 22 Nov 2018 07:02:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF32C20864 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404825AbeKVRkt (ORCPT ); Thu, 22 Nov 2018 12:40:49 -0500 Received: from terminus.zytor.com ([198.137.202.136]:36771 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732578AbeKVRkt (ORCPT ); Thu, 22 Nov 2018 12:40:49 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wAM72aOn3689053 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 21 Nov 2018 23:02:36 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wAM72alx3689050; Wed, 21 Nov 2018 23:02:36 -0800 Date: Wed, 21 Nov 2018 23:02:36 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Arnaldo Carvalho de Melo Message-ID: Cc: hpa@zytor.com, tglx@linutronix.de, acme@redhat.com, adrian.hunter@intel.com, jolsa@kernel.org, dsahern@gmail.com, namhyung@kernel.org, mingo@kernel.org, wangnan0@huawei.com, linux-kernel@vger.kernel.org Reply-To: linux-kernel@vger.kernel.org, wangnan0@huawei.com, mingo@kernel.org, dsahern@gmail.com, namhyung@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, tglx@linutronix.de, hpa@zytor.com, acme@redhat.com To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf bpf: Add defines for map insertion/lookup Git-Commit-ID: 382b55dbef6b68e3fef2fd8a438fbaff57695308 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 382b55dbef6b68e3fef2fd8a438fbaff57695308 Gitweb: https://git.kernel.org/tip/382b55dbef6b68e3fef2fd8a438fbaff57695308 Author: Arnaldo Carvalho de Melo AuthorDate: Tue, 6 Nov 2018 15:46:27 -0300 Committer: Arnaldo Carvalho de Melo CommitDate: Wed, 21 Nov 2018 12:00:31 -0300 perf bpf: Add defines for map insertion/lookup Starting with a helper for a basic pid_map(), a hash using a pid as a key. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-gdwvq53wltvq6b3g5tdmh0cw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/include/bpf/bpf.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h index 52b6d87fe822..04ecd425a237 100644 --- a/tools/perf/include/bpf/bpf.h +++ b/tools/perf/include/bpf/bpf.h @@ -18,6 +18,17 @@ struct bpf_map { unsigned int numa_node; }; +#define pid_map(name, value_type) \ +struct bpf_map SEC("maps") name = { \ + .type = BPF_MAP_TYPE_HASH, \ + .key_size = sizeof(pid_t), \ + .value_size = sizeof(value_type), \ + .max_entries = 512, \ +} + +static int (*bpf_map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags) = (void *)BPF_FUNC_map_update_elem; +static void *(*bpf_map_lookup_elem)(struct bpf_map *map, void *key) = (void *)BPF_FUNC_map_lookup_elem; + #define SEC(NAME) __attribute__((section(NAME), used)) #define probe(function, vars) \