diff --git a/libc/kernel/arch-x86/asm/stat.h b/libc/kernel/arch-x86/asm/stat.h
index 837d716..a4ccbe8 100644
--- a/libc/kernel/arch-x86/asm/stat.h
+++ b/libc/kernel/arch-x86/asm/stat.h
@@ -7,114 +7,123 @@
  ***   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_X86_STAT_H
 #define _ASM_X86_STAT_H
-
 #define STAT_HAVE_NSEC 1
-
 #ifdef __i386__
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct stat {
  unsigned long st_dev;
  unsigned long st_ino;
  unsigned short st_mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short st_nlink;
  unsigned short st_uid;
  unsigned short st_gid;
  unsigned long st_rdev;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_size;
  unsigned long st_blksize;
  unsigned long st_blocks;
  unsigned long st_atime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_atime_nsec;
  unsigned long st_mtime;
  unsigned long st_mtime_nsec;
  unsigned long st_ctime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_ctime_nsec;
  unsigned long __unused4;
  unsigned long __unused5;
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define STAT64_HAS_BROKEN_ST_INO 1
-
 struct stat64 {
  unsigned long long st_dev;
  unsigned char __pad0[4];
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long __st_ino;
-
  unsigned int st_mode;
  unsigned int st_nlink;
-
  unsigned long st_uid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_gid;
-
  unsigned long long st_rdev;
  unsigned char __pad3[4];
-
  long long st_size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_blksize;
-
  unsigned long long st_blocks;
-
  unsigned long st_atime;
  unsigned long st_atime_nsec;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_mtime;
  unsigned int st_mtime_nsec;
-
  unsigned long st_ctime;
  unsigned long st_ctime_nsec;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long long st_ino;
 };
-
 #else
-
 struct stat {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_dev;
  unsigned long st_ino;
  unsigned long st_nlink;
-
  unsigned int st_mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned int st_uid;
  unsigned int st_gid;
  unsigned int __pad0;
  unsigned long st_rdev;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  long st_size;
  long st_blksize;
  long st_blocks;
-
  unsigned long st_atime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_atime_nsec;
  unsigned long st_mtime;
  unsigned long st_mtime_nsec;
  unsigned long st_ctime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_ctime_nsec;
  long __unused[3];
 };
 #endif
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct __old_kernel_stat {
  unsigned short st_dev;
  unsigned short st_ino;
  unsigned short st_mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short st_nlink;
  unsigned short st_uid;
  unsigned short st_gid;
  unsigned short st_rdev;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #ifdef __i386__
  unsigned long st_size;
  unsigned long st_atime;
  unsigned long st_mtime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long st_ctime;
 #else
  unsigned int st_size;
  unsigned int st_atime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned int st_mtime;
  unsigned int st_ctime;
 #endif
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif