From: Andi Kleen <a...@linux.intel.com> 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 <a...@linux.intel.com> Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Acked-by: Ingo Molnar <mi...@kernel.org> Acked-by: Jiri Olsa <jo...@redhat.com> Cc: Madhavan Srinivasan <ma...@linux.vnet.ibm.com> Cc: Peter Zijlstra <pet...@infradead.org> Cc: linuxppc-...@lists.ozlabs.org Link: http://lkml.kernel.org/r/1473978296-20712-10-git-send-email-suka...@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- 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 9dc3506d23fc..79242cf9bb79 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -501,10 +501,16 @@ static void 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; + pr_debug("Using CPUID %s\n", cpuid); + i = 0; while (1) { map = &pmu_events_map[i++]; -- 2.7.4
