From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756880AbcIOW3Q (ORCPT ); Thu, 15 Sep 2016 18:29:16 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:33621 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756623AbcIOWZv (ORCPT ); Thu, 15 Sep 2016 18:25:51 -0400 From: Sukadev Bhattiprolu To: Arnaldo Carvalho de Melo Cc: peterz@infradead.org, maddy@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, Subject: [PATCH v21 09/19] perf, tools: Add override support for event list CPUID Date: Thu, 15 Sep 2016 15:24:46 -0700 X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1473978296-20712-1-git-send-email-sukadev@linux.vnet.ibm.com> References: <1473978296-20712-1-git-send-email-sukadev@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16091522-0040-0000-0000-0000015AC899 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005767; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000185; SDB=6.00758095; UDB=6.00359730; IPR=6.00531733; BA=6.00004731; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012685; XFM=3.00000011; UTC=2016-09-15 22:25:48 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16091522-0041-0000-0000-0000054DC8CE Message-Id: <1473978296-20712-10-git-send-email-sukadev@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-09-15_10:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=2 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609020000 definitions=main-1609150298 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andi Kleen Add a PERF_CPUID variable to override the CPUID of the current CPU (within the current architecture). This is useful for testing, so that all event lists can be tested on a single system. Signed-off-by: Andi Kleen Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Acked-by: Ingo Molnar --- v2: Fix double free in earlier version. Print actual CPUID being used with verbose option. --- tools/perf/util/pmu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index cb4c215..2291d2a 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -501,10 +501,16 @@ static int pmu_add_cpu_aliases(struct list_head *head) struct pmu_event *pe; char *cpuid; - cpuid = get_cpuid_str(); + cpuid = getenv("PERF_CPUID"); + if (cpuid) + cpuid = strdup(cpuid); + if (!cpuid) + cpuid = get_cpuid_str(); if (!cpuid) return 0; + pr_debug("Using CPUID %s\n", cpuid); + i = 0; while (1) { map = &pmu_events_map[i++]; -- 1.8.3.1