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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,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 CE838C46475 for ; Thu, 25 Oct 2018 17:55:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 816C62083E for ; Thu, 25 Oct 2018 17:55:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OgZ+swB8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 816C62083E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.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 S1727686AbeJZC3b (ORCPT ); Thu, 25 Oct 2018 22:29:31 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:39926 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727537AbeJZC3b (ORCPT ); Thu, 25 Oct 2018 22:29:31 -0400 Received: by mail-pg1-f196.google.com with SMTP id r9-v6so4354260pgv.6 for ; Thu, 25 Oct 2018 10:55:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=RGtaFss1HF8dJPqV8E/bhlIgb1auMeWrV87q5PX6a2A=; b=OgZ+swB8NCYBe5kQvsAnHCwtIG8LQKRsXOzBAkmvx+XxUZSsb94dPrAqZtgFZGVpyu j0UbRCpCZ8RCzYI06mmkz8gthz/In5ocqMJJFU57TzonHoLt/fBc+sBAAmUNTPEBxHPn 2YecUQbico+eXIl3sstvuE8AcdW2Y5DA/uyBk5QHMcw4/DCkKFka7k478q84l0QYzJAx It8YozQbd6xs83qUoZ+2/BCYBTf9Fislr+TIDqqastGN+V4thm8ScalvSctFNa1H5U0v GFKK7opq/+WdMHVURfWbJGjlQqoJ/R/HZJWYosmwtj6A4dwNZQz+KhcpIqXsH9A0Aio2 lhHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=RGtaFss1HF8dJPqV8E/bhlIgb1auMeWrV87q5PX6a2A=; b=Rvui3k6mCUDMWN3YoAj8uDjnjwv8nIgTW/zhEs8WUiDAfVGv/BfKOTLKtG8BIs3bXp wpy0LdBUe3j5APMCpRnlJefpqOObvlzfzgXKWZV6LCNnwfCkKBNB1SyTjr/S8aljhROQ X/gTmHqPLRdFhWK+lneFFXvLmoQdDID7GDAv2kbTPp0Wt01tvmwbZqdRSG3ECRQk8nrF mLjA2+oEtQz3a5yWmNIHa0FcAIlPmzINfgDYkRdFoffX3FGKUvjU34QC/DPaxGzRUYVd q5BC5S9AKI7SCbobUYMds1KEL7VNOSuT8t88BDRRsr5Q2p3vBE9DGoUu2IIYm+1GHfnX We5A== X-Gm-Message-State: AGRZ1gJz2Vx3hH9S81V6H7yB2ua50wHV2lMItYUKp8Ne62iYLWgU9Ym+ AygpkEYi5DXE14ol2UVIkj7G0VBj X-Google-Smtp-Source: AJdET5dFSSIqT3dMl65Tib4ZivtZGPPAPjEkuCg/uAJ+AJG318SG/cEf+Zhnj2+FfaQuUkIf2KMtUw== X-Received: by 2002:a62:104b:: with SMTP id y72-v6mr194139pfi.113.1540490142149; Thu, 25 Oct 2018 10:55:42 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.250]) by smtp.gmail.com with ESMTPSA id p19-v6sm2261885pff.172.2018.10.25.10.55.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Oct 2018 10:55:41 -0700 (PDT) From: Florian Fainelli To: linux-kernel@vger.kernel.org Cc: Florian Fainelli , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Kim Phillips , Greg Kroah-Hartman , Thomas Gleixner , Ravi Bangoria , Thomas Richter , rmk+kernel@armlinux.org.uk, l.stach@pengutronix.de Subject: [PATCH v2 0/2] perf tests: Check for ARM [vectors] page Date: Thu, 25 Oct 2018 10:55:06 -0700 Message-Id: <20181025175508.6967-1-f.fainelli@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I just painfully learned that perf would segfault when CONFIG_KUSER_HELPERS is disabled because it unconditionally makes use of it. This patch series adds an ARM test for that by leveraging the existing find_vdso_map() function and making it more generic and capable of location any map within /proc/self/maps. Changes in v2: - use strlen() instead of sizeof() -1 since we made the page name a parameter - use TEST_OK/TEST_FAIL in lieu of 0/-1 - added an error message indicating CONFIG_KUSER_HELPERS might be disabled Florian Fainelli (2): perf tools: Make find_vdso_map() more modular perf tests: Add a test for the ARM 32-bit [vectors] page tools/perf/arch/arm/tests/Build | 1 + tools/perf/arch/arm/tests/arch-tests.c | 4 +++ tools/perf/arch/arm/tests/vectors-page.c | 24 ++++++++++++++++++ tools/perf/tests/tests.h | 5 ++++ tools/perf/util/find-map.c | 31 ++++++++++++++++++++++++ tools/perf/util/find-vdso-map.c | 30 +++-------------------- 6 files changed, 68 insertions(+), 27 deletions(-) create mode 100644 tools/perf/arch/arm/tests/vectors-page.c create mode 100644 tools/perf/util/find-map.c -- 2.17.1