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From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
To: mingo@redhat.com, ak@linux.intel.com,
	Michael Ellerman <mpe@ellerman.id.au>,
	Jiri Olsa <jolsa@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: namhyung@kernel.org, linuxppc-dev@lists.ozlabs.org,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH v13 10/14] perf, tools: Add override support for event list CPUID
Date: Tue,  2 Jun 2015 10:12:10 -0700	[thread overview]
Message-ID: <1433265135-20426-11-git-send-email-sukadev@linux.vnet.ibm.com> (raw)
In-Reply-To: <1433265135-20426-1-git-send-email-sukadev@linux.vnet.ibm.com>

From: Andi Kleen <ak@linux.intel.com>

Add a PERF_CPUID variable to override the CPUID of the current CPU.
This is useful for testing, so that all event lists can be tested on a single
system.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>

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 8d91fa7..2cf03a7 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -481,10 +481,16 @@ static int pmu_add_cpu_aliases(void *data)
 	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++];
-- 
1.7.9.5

  parent reply	other threads:[~2015-06-02 17:13 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-02 17:12 [PATCH V13 00/14] perf, tools: Add support for PMU events in JSON format Sukadev Bhattiprolu
2015-06-02 17:12 ` [PATCH v13 01/14] perf, tools: Add jsmn `jasmine' JSON parser Sukadev Bhattiprolu
2015-06-02 17:12 ` [PATCH v13 02/14] perf, tools, jevents: Program to convert JSON file to C style file Sukadev Bhattiprolu
2015-06-03 10:30   ` Jiri Olsa
2015-06-03 10:31   ` Jiri Olsa
2015-06-03 10:32   ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 03/14] perf, tools: Use pmu_events_map table to create event aliases Sukadev Bhattiprolu
2015-06-03 10:30   ` Jiri Olsa
2015-06-03 10:30   ` Jiri Olsa
2015-06-03 10:31   ` Jiri Olsa
2015-06-03 10:31   ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 04/14] perf, tools: Allow events with dot Sukadev Bhattiprolu
2015-06-03 10:32   ` Jiri Olsa
2015-06-16  9:28     ` Robert Richter
2015-06-02 17:12 ` [PATCH v13 05/14] perf, tools: Support CPU id matching for x86 v2 Sukadev Bhattiprolu
2015-06-02 17:12 ` [PATCH v13 06/14] perf, tools: Support alias descriptions Sukadev Bhattiprolu
2015-06-03 10:31   ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 07/14] perf, tools: Query terminal width and use in perf list Sukadev Bhattiprolu
2015-06-02 17:12 ` [PATCH v13 08/14] perf, tools: Add a --no-desc flag to " Sukadev Bhattiprolu
2015-06-02 17:12 ` [PATCH v13 09/14] perf, tools: Group alias perf list by section Sukadev Bhattiprolu
2015-06-02 19:20   ` Sukadev Bhattiprolu
2015-06-02 17:12 ` Sukadev Bhattiprolu [this message]
2015-06-02 17:12 ` [PATCH v13 11/14] perf, tools: Support long descriptions with perf list -v Sukadev Bhattiprolu
2015-06-03 10:32   ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 12/14] perf, tools: Add support for event list topics Sukadev Bhattiprolu
2015-06-02 19:16   ` Sukadev Bhattiprolu
2015-06-03 10:32     ` Jiri Olsa
2015-06-03 12:57       ` Andi Kleen
2015-06-03 13:26         ` Arnaldo Carvalho de Melo
2015-06-03 14:25         ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 13/14] perf, tools: Handle header line in mapfile Sukadev Bhattiprolu
2015-06-03 10:32   ` Jiri Olsa
2015-06-02 17:12 ` [PATCH v13 14/14] perf, tools: Add README for the JSON/map files parsing Sukadev Bhattiprolu
2015-06-02 19:22 ` [PATCH V13 00/14] perf, tools: Add support for PMU events in JSON format Sukadev Bhattiprolu

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