diff --git a/libc/kernel/common/asm-generic/mman.h b/libc/kernel/common/asm-generic/mman.h
new file mode 100644
index 0000000..98d2783
--- /dev/null
+++ b/libc/kernel/common/asm-generic/mman.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ASM_GENERIC_MMAN_H
+#define _ASM_GENERIC_MMAN_H
+
+#define PROT_READ 0x1  
+#define PROT_WRITE 0x2  
+#define PROT_EXEC 0x4  
+#define PROT_SEM 0x8  
+#define PROT_NONE 0x0  
+#define PROT_GROWSDOWN 0x01000000  
+#define PROT_GROWSUP 0x02000000  
+
+#define MAP_SHARED 0x01  
+#define MAP_PRIVATE 0x02  
+#define MAP_TYPE 0x0f  
+#define MAP_FIXED 0x10  
+#define MAP_ANONYMOUS 0x20  
+
+#define MS_ASYNC 1  
+#define MS_INVALIDATE 2  
+#define MS_SYNC 4  
+
+#define MADV_NORMAL 0  
+#define MADV_RANDOM 1  
+#define MADV_SEQUENTIAL 2  
+#define MADV_WILLNEED 3  
+#define MADV_DONTNEED 4  
+
+#define MADV_REMOVE 9  
+#define MADV_DONTFORK 10  
+#define MADV_DOFORK 11  
+
+#define MAP_ANON MAP_ANONYMOUS
+#define MAP_FILE 0
+
+#endif