Handle newer 3.1+ perf API

[lttng-modules.git] / wrapper / perf.h

diff --git a/wrapper/perf.h b/wrapper/perf.h
new file mode 100644 (file)
index 0000000..9a6dbfc
--- /dev/null
+++ b/wrapper/perf.h
@@ -0,0 +1,32 @@
+#ifndef _LTT_WRAPPER_PERF_H
+#define _LTT_WRAPPER_PERF_H
+
+/*
+ * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+#include <linux/perf_event.h>
+
+#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,99))
+static inline struct perf_event *
+wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
+                               int cpu,
+                               struct task_struct *task,
+                               perf_overflow_handler_t callback)
+{
+       return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL);
+}
+#else
+static inline struct perf_event *
+wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
+                               int cpu,
+                               struct task_struct *task,
+                               perf_overflow_handler_t callback)
+{
+       return perf_event_create_kernel_counter(attr, cpu, task, callback);
+}
+#endif
+
+#endif /* _LTT_WRAPPER_PERF_H */