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=-15.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 22988C76186 for ; Tue, 30 Jul 2019 03:04:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E999320578 for ; Tue, 30 Jul 2019 03:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564455878; bh=7xKWf7f7XU6np8Pt92Tf+FJQxVCbkw4YzuYP8oLd2ys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XMieE9nT6cmJqzSrX3sG2uuGyNLWIy9UDdaySn48FXT3KCof6QhWaIbPExrq77GPL mGVtSQldq/3OopOn75uCJLZfbTirHvde52p/ueGhI7f/IvbCFyMfoIo/hV1Jrvv8xd 8cbp85UJv9odRG6CGFW3lpuc1muOo/ukG1+XSY+g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732886AbfG3DEg (ORCPT ); Mon, 29 Jul 2019 23:04:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:46136 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731504AbfG3C4a (ORCPT ); Mon, 29 Jul 2019 22:56:30 -0400 Received: from quaco.ghostprotocols.net (unknown [179.97.35.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 15E8E21849; Tue, 30 Jul 2019 02:56:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564455389; bh=7xKWf7f7XU6np8Pt92Tf+FJQxVCbkw4YzuYP8oLd2ys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gIK1R+SRONsBW73JKCAzMiAHuJjFcRhQmnn2Bju8t1AFCQ4HntJHUog+TpWEwt4Zg rDm6Ert5ZG0dxq6+nJTqzIdfi0Mf5YegFUC+XVOjb9mZfeiaPMK5FNPQPQbMoz6EAR +5ED7p2OzUKJvX9SlQIBLjchWmP+8wmqRRfISLaE= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , =?UTF-8?q?Luis=20Cl=C3=A1udio=20Gon=C3=A7alves?= Subject: [PATCH 003/107] perf evsel: Store backpointer to attached bpf_object Date: Mon, 29 Jul 2019 23:54:26 -0300 Message-Id: <20190730025610.22603-4-acme@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190730025610.22603-1-acme@kernel.org> References: <20190730025610.22603-1-acme@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo We may want to get to this bpf_object, to search for other BPF programs, etc. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-3y8hrb6lszjfi23vjlic3cib@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/bpf-loader.c | 4 ++-- tools/perf/util/bpf-loader.h | 2 +- tools/perf/util/evsel.c | 1 + tools/perf/util/evsel.h | 3 +++ tools/perf/util/parse-events.c | 3 ++- 5 files changed, 9 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c index c61974a50aa5..6d0dfb777a79 100644 --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -763,7 +763,7 @@ int bpf__foreach_event(struct bpf_object *obj, if (priv->is_tp) { fd = bpf_program__fd(prog); - err = (*func)(priv->sys_name, priv->evt_name, fd, arg); + err = (*func)(priv->sys_name, priv->evt_name, fd, obj, arg); if (err) { pr_debug("bpf: tracepoint call back failed, stop iterate\n"); return err; @@ -788,7 +788,7 @@ int bpf__foreach_event(struct bpf_object *obj, return fd; } - err = (*func)(tev->group, tev->event, fd, arg); + err = (*func)(tev->group, tev->event, fd, obj, arg); if (err) { pr_debug("bpf: call back failed, stop iterate\n"); return err; diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h index 3f46856e3330..8c3441a4b72c 100644 --- a/tools/perf/util/bpf-loader.h +++ b/tools/perf/util/bpf-loader.h @@ -46,7 +46,7 @@ struct parse_events_term; #define PERF_BPF_PROBE_GROUP "perf_bpf_probe" typedef int (*bpf_prog_iter_callback_t)(const char *group, const char *event, - int fd, void *arg); + int fd, struct bpf_object *obj, void *arg); #ifdef HAVE_LIBBPF_SUPPORT struct bpf_object *bpf__prepare_load(const char *filename, bool source); diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 52459dd5ad0c..7d1757a2ec46 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -234,6 +234,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->scale = 1.0; evsel->max_events = ULONG_MAX; evsel->evlist = NULL; + evsel->bpf_obj = NULL; evsel->bpf_fd = -1; INIT_LIST_HEAD(&evsel->node); INIT_LIST_HEAD(&evsel->config_terms); diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index cad54e8ba522..b27935a6d36c 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -82,6 +82,8 @@ enum perf_tool_event { PERF_TOOL_DURATION_TIME = 1, }; +struct bpf_object; + /** struct perf_evsel - event selector * * @evlist - evlist this evsel is in, if it is in one. @@ -152,6 +154,7 @@ struct perf_evsel { char *group_name; bool cmdline_group_boundary; struct list_head config_terms; + struct bpf_object *bpf_obj; int bpf_fd; bool auto_merge_stats; bool merged_stat; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index fac6b32ef94a..0540303e5e97 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -630,7 +630,7 @@ struct __add_bpf_event_param { struct list_head *head_config; }; -static int add_bpf_event(const char *group, const char *event, int fd, +static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj, void *_param) { LIST_HEAD(new_evsels); @@ -672,6 +672,7 @@ static int add_bpf_event(const char *group, const char *event, int fd, pr_debug("adding %s:%s to %p\n", group, event, pos); pos->bpf_fd = fd; + pos->bpf_obj = obj; } list_splice(&new_evsels, list); return 0; -- 2.21.0