1  #include <linux/version.h>
       2  /* <linux/perf_event.h> has been added in 2.6.32 */
       3  #if LINUX_VERSION_CODE >= 132640
       4  #include_next <linux/perf_event.h>
       5  #else
       6  #define perf_event_attr __sanitizer_perf_event_attr
       7  #endif