From: Andi Kleen <a...@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.
v2: Fix double free in earlier version.
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/perf/util/pmu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 578a537..5c30f89 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -474,7 +474,11 @@ 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;
--
2.4.1
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