diff --git a/libc/kernel/common/linux/personality.h b/libc/kernel/common/linux/personality.h
new file mode 100644
index 0000000..1f84b4e
--- /dev/null
+++ b/libc/kernel/common/linux/personality.h
@@ -0,0 +1,83 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _LINUX_PERSONALITY_H
+#define _LINUX_PERSONALITY_H
+
+struct exec_domain;
+struct pt_regs;
+
+enum {
+ ADDR_NO_RANDOMIZE = 0x0040000,
+ FDPIC_FUNCPTRS = 0x0080000,
+ MMAP_PAGE_ZERO = 0x0100000,
+ ADDR_COMPAT_LAYOUT = 0x0200000,
+ READ_IMPLIES_EXEC = 0x0400000,
+ ADDR_LIMIT_32BIT = 0x0800000,
+ SHORT_INODE = 0x1000000,
+ WHOLE_SECONDS = 0x2000000,
+ STICKY_TIMEOUTS = 0x4000000,
+ ADDR_LIMIT_3GB = 0x8000000,
+};
+
+#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC|ADDR_NO_RANDOMIZE)
+
+enum {
+ PER_LINUX = 0x0000,
+ PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
+ PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
+ PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+ PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |
+ WHOLE_SECONDS | SHORT_INODE,
+ PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
+ PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
+ PER_BSD = 0x0006,
+ PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
+ PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_LINUX32 = 0x0008,
+ PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
+ PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,
+ PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,
+ PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,
+ PER_RISCOS = 0x000c,
+ PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
+ PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+ PER_OSF4 = 0x000f,
+ PER_HPUX = 0x0010,
+ PER_MASK = 0x00ff,
+};
+
+typedef void (*handler_t)(int, struct pt_regs *);
+
+struct exec_domain {
+ const char *name;
+ handler_t handler;
+ unsigned char pers_low;
+ unsigned char pers_high;
+ unsigned long *signal_map;
+ unsigned long *signal_invmap;
+ struct map_segment *err_map;
+ struct map_segment *socktype_map;
+ struct map_segment *sockopt_map;
+ struct map_segment *af_map;
+ struct module *module;
+ struct exec_domain *next;
+};
+
+#define personality(pers) (pers & PER_MASK)
+
+#define get_personality (current->personality)
+
+#define set_personality(pers)   ((current->personality == pers) ? 0 : __set_personality(pers))
+
+#endif