1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/lib/include/internal/lib.h b/tools/perf/lib/include/internal/lib.h
new file mode 100644
index 000000000000..0b56f1201dc9
--- /dev/null
+++ b/tools/perf/lib/include/internal/lib.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LIBPERF_INTERNAL_LIB_H
+#define __LIBPERF_INTERNAL_LIB_H
+
+#include <unistd.h>
+
+ssize_t readn(int fd, void *buf, size_t n);
+ssize_t writen(int fd, const void *buf, size_t n);
+
+#endif /* __LIBPERF_INTERNAL_CPUMAP_H */