diff --git a/libc/kernel/arch-x86/asm/auxvec.h b/libc/kernel/arch-x86/asm/auxvec.h
index d3cffeca2..6a5978e63 100644
--- a/libc/kernel/arch-x86/asm/auxvec.h
+++ b/libc/kernel/arch-x86/asm/auxvec.h
@@ -21,4 +21,5 @@
 #define AT_SYSINFO 32
 #define AT_SYSINFO_EHDR 33
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_VECTOR_SIZE_ARCH 2
 #endif
diff --git a/libc/kernel/common/linux/auxvec.h b/libc/kernel/common/linux/auxvec.h
index a6dcec9e2..8002275be 100644
--- a/libc/kernel/common/linux/auxvec.h
+++ b/libc/kernel/common/linux/auxvec.h
@@ -18,31 +18,7 @@
  ****************************************************************************/
 #ifndef _LINUX_AUXVEC_H
 #define _LINUX_AUXVEC_H
-#include <asm/auxvec.h>
-#define AT_NULL 0  
+#include <uapi/linux/auxvec.h>
+#define AT_VECTOR_SIZE_BASE 19  
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define AT_IGNORE 1  
-#define AT_EXECFD 2  
-#define AT_PHDR 3  
-#define AT_PHENT 4  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define AT_PHNUM 5  
-#define AT_PAGESZ 6  
-#define AT_BASE 7  
-#define AT_FLAGS 8  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define AT_ENTRY 9  
-#define AT_NOTELF 10  
-#define AT_UID 11  
-#define AT_EUID 12  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define AT_GID 13  
-#define AT_EGID 14  
-#define AT_PLATFORM 15  
-#define AT_HWCAP 16  
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define AT_CLKTCK 17  
-#define AT_SECURE 23  
-#define AT_VECTOR_SIZE 44  
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
diff --git a/libc/kernel/common/uapi/linux/auxvec.h b/libc/kernel/common/uapi/linux/auxvec.h
new file mode 100644
index 000000000..19d5aeed1
--- /dev/null
+++ b/libc/kernel/common/uapi/linux/auxvec.h
@@ -0,0 +1,50 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _UAPI_LINUX_AUXVEC_H
+#define _UAPI_LINUX_AUXVEC_H
+#include <asm/auxvec.h>
+#define AT_NULL 0  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_IGNORE 1  
+#define AT_EXECFD 2  
+#define AT_PHDR 3  
+#define AT_PHENT 4  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_PHNUM 5  
+#define AT_PAGESZ 6  
+#define AT_BASE 7  
+#define AT_FLAGS 8  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_ENTRY 9  
+#define AT_NOTELF 10  
+#define AT_UID 11  
+#define AT_EUID 12  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_GID 13  
+#define AT_EGID 14  
+#define AT_PLATFORM 15  
+#define AT_HWCAP 16  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_CLKTCK 17  
+#define AT_SECURE 23  
+#define AT_BASE_PLATFORM 24  
+#define AT_RANDOM 25  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_EXECFN 31  
+#endif