From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-4170472-1522167676-2-5936276581363635185 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.249, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-api-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1522167672; b=MfDmVtes+dXNtMkAxyfp8CEb5Z7/h8fvma8jS65zpl/RsOF /IWd5Ph/GV5ebeOobRaqPxmabEmJttlH1J/d2xlqHeYXkCXPAYDOPeI4PwsTHXIO lfHlpmKFBjNuplr5tVllZWO+j3aYu3dwGXFOujzjITYkDsgdE81FKOfjTD0NwSGe k8P4yW/xMdUHVe8PCi4J7MsGe0LQg+74Bw+YSkD2G0+kaAOd+JxJqxqrbsaQtRI7 usxNiHbO27JyptB153kPHIaC6SurMbksnEG25PHex1xC/86uTly4wGWO35FTGqNM H48eAKao/t7qSPmk0Z8QKdkqeqmbrdax+dqwyDA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=arctest; t=1522167672; bh=cC+ou/Jb1GHL2s40ngd4q4wf+uZqSAkTawePb8loads=; b=vlO5H4vO2xVV V9dsIT9cXmLOQ14pTmeJT2Yl7T0UN0QvXGT65CEb1i5CFbUvAy5q85kNvMgU6LPn 1TqibEVpWH9I814WwJWhr10hqwe2QoIdRQCjb3gXFPLtHWsPg3RTSROxW2S9XsIX gvTldL68vZ+jwO3K1P5SmXL0ICfzs34PlJUreTWgg6AXD851qoVaBO36GKVhghfS SBn0c+czabgRwOmEqfUylOe+sgGoK4cwKD75Ki3KZxuLjFMcCc5GqVrRDLB+n1m+ wbYE1xaagLP8Xdfo/Dp5co0lZ/5loK0RtIuFdT88YqrDuFqI24GO3RYkhRxfEdxz pSkeVn0uBQ== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=efficios.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=efficios.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=efficios.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=efficios.com header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfIHn77UifRCe2vcIHZ2NZhM+HHjngvpsNGE0QnKRNVj3fkv0itYhBbzIRMfQI3F2tuSh8b9tUSRNUK4wKInhcemBnJwEEEbnZy57p6y/cuBJiGB81+dU ZREh9cfi97sipm99XvBMAdPuW7grftuKpJoNsbcPLYE1gLl42LUk5OWvLRG91YGZcEgpfrTpUvgd3o/qrgdGsuKhwxlF+9U1dY2QyWgd1ZxLIcIoHzAHw/H7 X-CM-Analysis: v=2.3 cv=WaUilXpX c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=v2DPQv5-lfwA:10 a=7d_E57ReAAAA:8 a=hD80L64hAAAA:8 a=drOt6m5kAAAA:8 a=7CQSdrXTAAAA:8 a=1XWaLZrsAAAA:8 a=JfrnYn6hAAAA:8 a=SOq6UgPBAAAA:8 a=WfulkdPnAAAA:8 a=FOH2dFAWAAAA:8 a=NufY4J3AAAAA:8 a=20KFwNOVAAAA:8 a=oGMlB6cnAAAA:8 a=meVymXHHAAAA:8 a=VnNF1IyMAAAA:8 a=UPm3pfgAAAAA:8 a=Z4Rwk6OoAAAA:8 a=pGLkceISAAAA:8 a=VwQbUJbxAAAA:8 a=xoWXsIQFf4P5xJNg6BwA:9 a=x8gzFH9gYPwA:10 a=jhqOcbufqs7Y1TYCrUUU:22 a=RMMjzBEyIzXRtoq5n5K6:22 a=a-qgeE7W1pNrGK8U0ZQC:22 a=1CNFftbPRP8L7MoqJWF3:22 a=3hv5r9HjGAh9o5iR9qwG:22 a=56QPVbyS4OZCpcuOg7Z9:22 a=i3VuKzQdj-NEYjvDI-p3:22 a=TPcZfFuj8SYsoCJAFAiX:22 a=NdAtdrkLVvyUPsUoGJp4:22 a=2JgSa4NbpEOStq-L5dxp:22 a=uD9XBtlS4o1URY3aiGdj:22 a=HkZW87K1Qel5hWWM3VKY:22 a=AjGcO6oz07-iQ99wixmX:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752548AbeC0QVL (ORCPT ); Tue, 27 Mar 2018 12:21:11 -0400 Received: from mail.efficios.com ([167.114.142.138]:53940 "EHLO mail.efficios.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752545AbeC0QVA (ORCPT ); Tue, 27 Mar 2018 12:21:00 -0400 From: Mathieu Desnoyers To: Peter Zijlstra , "Paul E . McKenney" , Boqun Feng , Andy Lutomirski , Dave Watson Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, Paul Turner , Andrew Morton , Russell King , Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , Andrew Hunter , Andi Kleen , Chris Lameter , Ben Maurer , Steven Rostedt , Josh Triplett , Linus Torvalds , Catalin Marinas , Will Deacon , Michael Kerrisk , Mathieu Desnoyers , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [RFC PATCH for 4.17 18/21] rseq: selftests: Provide basic test Date: Tue, 27 Mar 2018 12:05:39 -0400 Message-Id: <20180327160542.28457-19-mathieu.desnoyers@efficios.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180327160542.28457-1-mathieu.desnoyers@efficios.com> References: <20180327160542.28457-1-mathieu.desnoyers@efficios.com> Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: "basic_test" only asserts that RSEQ works moderately correctly. E.g. that the CPUID pointer works. Signed-off-by: Mathieu Desnoyers CC: Shuah Khan CC: Russell King CC: Catalin Marinas CC: Will Deacon CC: Thomas Gleixner CC: Paul Turner CC: Andrew Hunter CC: Peter Zijlstra CC: Andy Lutomirski CC: Andi Kleen CC: Dave Watson CC: Chris Lameter CC: Ingo Molnar CC: "H. Peter Anvin" CC: Ben Maurer CC: Steven Rostedt CC: "Paul E. McKenney" CC: Josh Triplett CC: Linus Torvalds CC: Andrew Morton CC: Boqun Feng CC: linux-kselftest@vger.kernel.org CC: linux-api@vger.kernel.org --- tools/testing/selftests/rseq/basic_test.c | 55 +++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 tools/testing/selftests/rseq/basic_test.c diff --git a/tools/testing/selftests/rseq/basic_test.c b/tools/testing/selftests/rseq/basic_test.c new file mode 100644 index 000000000000..e2086b3885d7 --- /dev/null +++ b/tools/testing/selftests/rseq/basic_test.c @@ -0,0 +1,55 @@ +/* + * Basic test coverage for critical regions and rseq_current_cpu(). + */ + +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include + +#include "rseq.h" + +void test_cpu_pointer(void) +{ + cpu_set_t affinity, test_affinity; + int i; + + sched_getaffinity(0, sizeof(affinity), &affinity); + CPU_ZERO(&test_affinity); + for (i = 0; i < CPU_SETSIZE; i++) { + if (CPU_ISSET(i, &affinity)) { + CPU_SET(i, &test_affinity); + sched_setaffinity(0, sizeof(test_affinity), + &test_affinity); + assert(sched_getcpu() == i); + assert(rseq_current_cpu() == i); + assert(rseq_current_cpu_raw() == i); + assert(rseq_cpu_start() == i); + CPU_CLR(i, &test_affinity); + } + } + sched_setaffinity(0, sizeof(affinity), &affinity); +} + +int main(int argc, char **argv) +{ + if (rseq_register_current_thread()) { + fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n", + errno, strerror(errno)); + goto init_thread_error; + } + printf("testing current cpu\n"); + test_cpu_pointer(); + if (rseq_unregister_current_thread()) { + fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n", + errno, strerror(errno)); + goto init_thread_error; + } + return 0; + +init_thread_error: + return -1; +} -- 2.11.0