PERF_ATTR_SIZE_VER4 301 include/uapi/linux/perf_event.h #define PERF_ATTR_SIZE_VER4 104 /* add: sample_regs_intr */ PERF_ATTR_SIZE_VER4 301 tools/include/uapi/linux/perf_event.h #define PERF_ATTR_SIZE_VER4 104 /* add: sample_regs_intr */