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=-12.1 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_PASS 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 A7765C10F14 for ; Tue, 16 Apr 2019 16:02:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 77A7120821 for ; Tue, 16 Apr 2019 16:02:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555430531; bh=xqFeVLPep/prm1ef2ZefxpxuoXIoqbCObwVLTxqEu4o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wIRqsUfNd4hAca2yigw9YGWzuyye7VSqWCWiIR8tPLhLm0MeJd7Ez/tBM4p5ozABZ BzatH+m0jCARmOBBwhjrCQJPnIYhjiaHapCvp45w8M6yPEaGbBJUNPsjHxDdvWj0xm opJIxJq8zhRBZbIDhsffM64MsskTcGFq7l5lv6Bg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730079AbfDPQCK (ORCPT ); Tue, 16 Apr 2019 12:02:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32956 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726860AbfDPQCI (ORCPT ); Tue, 16 Apr 2019 12:02:08 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 67843C04FFF9; Tue, 16 Apr 2019 16:02:08 +0000 (UTC) Received: from krava.brq.redhat.com (unknown [10.43.17.48]) by smtp.corp.redhat.com (Postfix) with ESMTP id 195295D71E; Tue, 16 Apr 2019 16:02:05 +0000 (UTC) From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Andi Kleen , Adrian Hunter , Song Liu , Alexei Starovoitov , Daniel Borkmann Subject: [PATCH 11/12] perf tools: Reuse shared eBPF dso objects Date: Tue, 16 Apr 2019 18:01:26 +0200 Message-Id: <20190416160127.30203-12-jolsa@kernel.org> In-Reply-To: <20190416160127.30203-1-jolsa@kernel.org> References: <20190416160127.30203-1-jolsa@kernel.org> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 16 Apr 2019 16:02:08 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The eBPF program can be loaded multiple times with the same name (tag). We can share dso objects for those programs. Link: http://lkml.kernel.org/n/tip-3damf8vq1dryhtpbk5b06jpt@git.kernel.org Signed-off-by: Jiri Olsa --- tools/perf/util/machine.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index d4aa44489011..a60653827891 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -23,6 +23,7 @@ #include "linux/hash.h" #include "asm/bug.h" #include "bpf-event.h" +#include "dso.h" #include "sane_ctype.h" #include @@ -699,11 +700,18 @@ static int machine__process_ksymbol_register(struct machine *machine, map = map_groups__find(&machine->kmaps, event->ksymbol_event.addr); if (!map) { - map = dso__new_map(event->ksymbol_event.name); - if (!map) + struct dso *dso; + + dso = dsos__findnew(&machine->dsos, event->ksymbol_event.name); + if (!dso) return -ENOMEM; - map->start = event->ksymbol_event.addr; + map = map__new2(event->ksymbol_event.addr, dso); + if (!map) { + dso__put(dso); + return -ENOMEM; + } + map->end = map->start + event->ksymbol_event.len; map_groups__insert(&machine->kmaps, map); } -- 2.17.2