diff --git a/libc/kernel/common/asm-generic/mman-common.h b/libc/kernel/common/asm-generic/mman-common.h
new file mode 100644
index 0000000..157353b
--- /dev/null
+++ b/libc/kernel/common/asm-generic/mman-common.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __ASM_GENERIC_MMAN_COMMON_H
+#define __ASM_GENERIC_MMAN_COMMON_H
+#define PROT_READ 0x1  
+#define PROT_WRITE 0x2  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PROT_EXEC 0x4  
+#define PROT_SEM 0x8  
+#define PROT_NONE 0x0  
+#define PROT_GROWSDOWN 0x01000000  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PROT_GROWSUP 0x02000000  
+#define MAP_SHARED 0x01  
+#define MAP_PRIVATE 0x02  
+#define MAP_TYPE 0x0f  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MAP_FIXED 0x10  
+#define MAP_ANONYMOUS 0x20  
+#define MAP_UNINITIALIZED 0x0  
+#define MS_ASYNC 1  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MS_INVALIDATE 2  
+#define MS_SYNC 4  
+#define MADV_NORMAL 0  
+#define MADV_RANDOM 1  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MADV_SEQUENTIAL 2  
+#define MADV_WILLNEED 3  
+#define MADV_DONTNEED 4  
+#define MADV_REMOVE 9  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MADV_DONTFORK 10  
+#define MADV_DOFORK 11  
+#define MADV_HWPOISON 100  
+#define MADV_SOFT_OFFLINE 101  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MADV_MERGEABLE 12  
+#define MADV_UNMERGEABLE 13  
+#define MADV_HUGEPAGE 14  
+#define MADV_NOHUGEPAGE 15  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MAP_FILE 0
+#endif
diff --git a/libc/kernel/common/asm-generic/mman.h b/libc/kernel/common/asm-generic/mman.h
index d454921..6eaf900 100644
--- a/libc/kernel/common/asm-generic/mman.h
+++ b/libc/kernel/common/asm-generic/mman.h
@@ -16,38 +16,21 @@
  ***
  ****************************************************************************
  ****************************************************************************/
-#ifndef _ASM_GENERIC_MMAN_H
-#define _ASM_GENERIC_MMAN_H
-#define PROT_READ 0x1  
-#define PROT_WRITE 0x2  
+#ifndef __ASM_GENERIC_MMAN_H
+#define __ASM_GENERIC_MMAN_H
+#include <asm-generic/mman-common.h>
+#define MAP_GROWSDOWN 0x0100  
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define PROT_EXEC 0x4  
-#define PROT_SEM 0x8  
-#define PROT_NONE 0x0  
-#define PROT_GROWSDOWN 0x01000000  
+#define MAP_DENYWRITE 0x0800  
+#define MAP_EXECUTABLE 0x1000  
+#define MAP_LOCKED 0x2000  
+#define MAP_NORESERVE 0x4000  
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define PROT_GROWSUP 0x02000000  
-#define MAP_SHARED 0x01  
-#define MAP_PRIVATE 0x02  
-#define MAP_TYPE 0x0f  
+#define MAP_POPULATE 0x8000  
+#define MAP_NONBLOCK 0x10000  
+#define MAP_STACK 0x20000  
+#define MAP_HUGETLB 0x40000  
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MAP_FIXED 0x10  
-#define MAP_ANONYMOUS 0x20  
-#define MS_ASYNC 1  
-#define MS_INVALIDATE 2  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MS_SYNC 4  
-#define MADV_NORMAL 0  
-#define MADV_RANDOM 1  
-#define MADV_SEQUENTIAL 2  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MADV_WILLNEED 3  
-#define MADV_DONTNEED 4  
-#define MADV_REMOVE 9  
-#define MADV_DONTFORK 10  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MADV_DOFORK 11  
-#define MAP_ANON MAP_ANONYMOUS
-#define MAP_FILE 0
+#define MCL_CURRENT 1  
+#define MCL_FUTURE 2  
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */