diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
new file mode 100644
index 0000000..91e72b7
--- /dev/null
+++ b/arch/arm64/include/asm/compat.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_COMPAT_H
+#define __ASM_COMPAT_H
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+
+#define COMPAT_USER_HZ		100
+#define COMPAT_UTS_MACHINE	"armv8l\0\0"
+
+typedef u32		compat_size_t;
+typedef s32		compat_ssize_t;
+typedef s32		compat_time_t;
+typedef s32		compat_clock_t;
+typedef s32		compat_pid_t;
+typedef u32		__compat_uid_t;
+typedef u32		__compat_gid_t;
+typedef u32		__compat_uid32_t;
+typedef u32		__compat_gid32_t;
+typedef u32		compat_mode_t;
+typedef u32		compat_ino_t;
+typedef u32		compat_dev_t;
+typedef s32		compat_off_t;
+typedef s64		compat_loff_t;
+typedef s16		compat_nlink_t;
+typedef u16		compat_ipc_pid_t;
+typedef s32		compat_daddr_t;
+typedef u32		compat_caddr_t;
+typedef __kernel_fsid_t	compat_fsid_t;
+typedef s32		compat_key_t;
+typedef s32		compat_timer_t;
+
+typedef s32		compat_int_t;
+typedef s32		compat_long_t;
+typedef s64		compat_s64;
+typedef u32		compat_uint_t;
+typedef u32		compat_ulong_t;
+typedef u64		compat_u64;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+struct compat_stat {
+	compat_dev_t	st_dev;
+	compat_ino_t	st_ino;
+	compat_mode_t	st_mode;
+	compat_nlink_t	st_nlink;
+	__compat_uid32_t	st_uid;
+	__compat_gid32_t	st_gid;
+	compat_dev_t	st_rdev;
+	compat_off_t	st_size;
+	compat_off_t	st_blksize;
+	compat_off_t	st_blocks;
+	compat_time_t	st_atime;
+	u32		st_atime_nsec;
+	compat_time_t	st_mtime;
+	u32		st_mtime_nsec;
+	compat_time_t	st_ctime;
+	u32		st_ctime_nsec;
+	u32		__unused4[2];
+};
+
+struct compat_flock {
+	short		l_type;
+	short		l_whence;
+	compat_off_t	l_start;
+	compat_off_t	l_len;
+	compat_pid_t	l_pid;
+};
+
+#define F_GETLK64	12	/*  using 'struct flock64' */
+#define F_SETLK64	13
+#define F_SETLKW64	14
+
+struct compat_flock64 {
+	short		l_type;
+	short		l_whence;
+	compat_loff_t	l_start;
+	compat_loff_t	l_len;
+	compat_pid_t	l_pid;
+};
+
+struct compat_statfs {
+	int		f_type;
+	int		f_bsize;
+	int		f_blocks;
+	int		f_bfree;
+	int		f_bavail;
+	int		f_files;
+	int		f_ffree;
+	compat_fsid_t	f_fsid;
+	int		f_namelen;	/* SunOS ignores this field. */
+	int		f_frsize;
+	int		f_flags;
+	int		f_spare[4];
+};
+
+#define COMPAT_RLIM_INFINITY		0xffffffff
+
+typedef u32		compat_old_sigset_t;
+
+#define _COMPAT_NSIG		64
+#define _COMPAT_NSIG_BPW	32
+
+typedef u32		compat_sigset_word;
+
+#define COMPAT_OFF_T_MAX	0x7fffffff
+#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
+
+/*
+ * A pointer passed in from user mode. This should not
+ * be used for syscall parameters, just declare them
+ * as pointers because the syscall entry code will have
+ * appropriately converted them already.
+ */
+typedef	u32		compat_uptr_t;
+
+static inline void __user *compat_ptr(compat_uptr_t uptr)
+{
+	return (void __user *)(unsigned long)uptr;
+}
+
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+	return (u32)(unsigned long)uptr;
+}
+
+static inline void __user *arch_compat_alloc_user_space(long len)
+{
+	struct pt_regs *regs = task_pt_regs(current);
+	return (void __user *)regs->compat_sp - len;
+}
+
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
+	unsigned short mode;
+	unsigned short __pad1;
+	unsigned short seq;
+	unsigned short __pad2;
+	compat_ulong_t unused1;
+	compat_ulong_t unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t  sem_otime;
+	compat_ulong_t __unused1;
+	compat_time_t  sem_ctime;
+	compat_ulong_t __unused2;
+	compat_ulong_t sem_nsems;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+	compat_time_t  msg_stime;
+	compat_ulong_t __unused1;
+	compat_time_t  msg_rtime;
+	compat_ulong_t __unused2;
+	compat_time_t  msg_ctime;
+	compat_ulong_t __unused3;
+	compat_ulong_t msg_cbytes;
+	compat_ulong_t msg_qnum;
+	compat_ulong_t msg_qbytes;
+	compat_pid_t   msg_lspid;
+	compat_pid_t   msg_lrpid;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	compat_size_t  shm_segsz;
+	compat_time_t  shm_atime;
+	compat_ulong_t __unused1;
+	compat_time_t  shm_dtime;
+	compat_ulong_t __unused2;
+	compat_time_t  shm_ctime;
+	compat_ulong_t __unused3;
+	compat_pid_t   shm_cpid;
+	compat_pid_t   shm_lpid;
+	compat_ulong_t shm_nattch;
+	compat_ulong_t __unused4;
+	compat_ulong_t __unused5;
+};
+
+static inline int is_compat_task(void)
+{
+	return test_thread_flag(TIF_32BIT);
+}
+
+#else /* !CONFIG_COMPAT */
+
+static inline int is_compat_task(void)
+{
+	return 0;
+}
+
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+#endif /* __ASM_COMPAT_H */
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
new file mode 100644
index 0000000..f9cf9e1
--- /dev/null
+++ b/arch/arm64/include/asm/signal32.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_SIGNAL32_H
+#define __ASM_SIGNAL32_H
+
+#ifdef __KERNEL__
+#ifdef CONFIG_AARCH32_EMULATION
+#include <linux/compat.h>
+
+#define AARCH32_KERN_SIGRET_CODE_OFFSET	0x500
+
+extern const compat_ulong_t aarch32_sigret_code[6];
+
+int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
+		       struct pt_regs *regs);
+int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
+			  sigset_t *set, struct pt_regs *regs);
+
+void compat_setup_restart_syscall(struct pt_regs *regs);
+#else
+
+static inline int compat_setup_frame(int usid, struct k_sigaction *ka,
+				     sigset_t *set, struct pt_regs *regs)
+{
+	BUG();
+}
+
+static inline int compat_setup_rt_frame(int usig, struct k_sigaction *ka,
+					siginfo_t *info, sigset_t *set,
+					struct pt_regs *regs)
+{
+	BUG();
+}
+
+static inline void compat_setup_restart_syscall(struct pt_regs *regs)
+{
+	BUG();
+}
+#endif /* CONFIG_AARCH32_EMULATION */
+#endif /* __KERNEL__ */
+#endif /* __ASM_SIGNAL32_H */
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
new file mode 100644
index 0000000..a50405f
--- /dev/null
+++ b/arch/arm64/include/asm/unistd32.h
@@ -0,0 +1,758 @@
+/*
+ * Based on arch/arm/include/asm/unistd.h
+ *
+ * Copyright (C) 2001-2005 Russell King
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#if !defined(__ASM_UNISTD32_H) || defined(__SYSCALL)
+#define __ASM_UNISTD32_H
+
+#ifndef __SYSCALL
+#define __SYSCALL(x, y)
+#endif
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#ifdef __SYSCALL_COMPAT
+
+#define __NR_restart_syscall		0
+__SYSCALL(__NR_restart_syscall, sys_restart_syscall)
+#define __NR_exit			1
+__SYSCALL(__NR_exit, sys_exit)
+#define __NR_fork			2
+__SYSCALL(__NR_fork, sys_fork)
+#define __NR_read			3
+__SYSCALL(__NR_read, sys_read)
+#define __NR_write			4
+__SYSCALL(__NR_write, sys_write)
+#define __NR_open			5
+__SYSCALL(__NR_open, sys_open)
+#define __NR_close			6
+__SYSCALL(__NR_close, sys_close)
+__SYSCALL(7, sys_ni_syscall)		/* 7 was sys_waitpid */
+#define __NR_creat			8
+__SYSCALL(__NR_creat, sys_creat)
+#define __NR_link			9
+__SYSCALL(__NR_link, sys_link)
+#define __NR_unlink			10
+__SYSCALL(__NR_unlink, sys_unlink)
+#define __NR_execve			11
+__SYSCALL(__NR_execve, sys_execve)
+#define __NR_chdir			12
+__SYSCALL(__NR_chdir, sys_chdir)
+__SYSCALL(13, sys_ni_syscall)		/* 13 was sys_time */
+#define __NR_mknod			14
+__SYSCALL(__NR_mknod, sys_mknod)
+#define __NR_chmod			15
+__SYSCALL(__NR_chmod, sys_chmod)
+#define __NR_lchown			16
+__SYSCALL(__NR_lchown, sys_lchown16)
+__SYSCALL(17, sys_ni_syscall)		/* 17 was sys_break */
+__SYSCALL(18, sys_ni_syscall)		/* 18 was sys_stat */
+#define __NR_lseek			19
+__SYSCALL(__NR_lseek, sys_lseek)
+#define __NR_getpid			20
+__SYSCALL(__NR_getpid, sys_getpid)
+#define __NR_mount			21
+__SYSCALL(__NR_mount, sys_mount)
+__SYSCALL(22, sys_ni_syscall)		/* 22 was sys_umount */
+#define __NR_setuid			23
+__SYSCALL(__NR_setuid, sys_setuid16)
+#define __NR_getuid			24
+__SYSCALL(__NR_getuid, sys_getuid16)
+__SYSCALL(25, sys_ni_syscall)		/* 25 was sys_stime */
+#define __NR_ptrace			26
+__SYSCALL(__NR_ptrace, sys_ptrace)
+__SYSCALL(27, sys_ni_syscall)		/* 27 was sys_alarm */
+__SYSCALL(28, sys_ni_syscall)		/* 28 was sys_fstat */
+#define __NR_pause			29
+__SYSCALL(__NR_pause, sys_pause)
+__SYSCALL(30, sys_ni_syscall)		/* 30 was sys_utime */
+__SYSCALL(31, sys_ni_syscall)		/* 31 was sys_stty */
+__SYSCALL(32, sys_ni_syscall)		/* 32 was sys_gtty */
+#define __NR_access			33
+__SYSCALL(__NR_access, sys_access)
+#define __NR_nice			34
+__SYSCALL(__NR_nice, sys_nice)
+__SYSCALL(35, sys_ni_syscall)		/* 35 was sys_ftime */
+#define __NR_sync			36
+__SYSCALL(__NR_sync, sys_sync)
+#define __NR_kill			37
+__SYSCALL(__NR_kill, sys_kill)
+#define __NR_rename			38
+__SYSCALL(__NR_rename, sys_rename)
+#define __NR_mkdir			39
+__SYSCALL(__NR_mkdir, sys_mkdir)
+#define __NR_rmdir			40
+__SYSCALL(__NR_rmdir, sys_rmdir)
+#define __NR_dup			41
+__SYSCALL(__NR_dup, sys_dup)
+#define __NR_pipe			42
+__SYSCALL(__NR_pipe, sys_pipe)
+#define __NR_times			43
+__SYSCALL(__NR_times, sys_times)
+__SYSCALL(44, sys_ni_syscall)		/* 44 was sys_prof */
+#define __NR_brk			45
+__SYSCALL(__NR_brk, sys_brk)
+#define __NR_setgid			46
+__SYSCALL(__NR_setgid, sys_setgid16)
+#define __NR_getgid			47
+__SYSCALL(__NR_getgid, sys_getgid16)
+__SYSCALL(48, sys_ni_syscall)		/* 48 was sys_signal */
+#define __NR_geteuid			49
+__SYSCALL(__NR_geteuid, sys_geteuid16)
+#define __NR_getegid			50
+__SYSCALL(__NR_getegid, sys_getegid16)
+#define __NR_acct			51
+__SYSCALL(__NR_acct, sys_acct)
+#define __NR_umount2			52
+__SYSCALL(__NR_umount2, sys_umount)
+__SYSCALL(53, sys_ni_syscall)		/* 53 was sys_lock */
+#define __NR_ioctl			54
+__SYSCALL(__NR_ioctl, sys_ioctl)
+#define __NR_fcntl			55
+__SYSCALL(__NR_fcntl, sys_fcntl)
+__SYSCALL(56, sys_ni_syscall)		/* 56 was sys_mpx */
+#define __NR_setpgid			57
+__SYSCALL(__NR_setpgid, sys_setpgid)
+__SYSCALL(58, sys_ni_syscall)		/* 58 was sys_ulimit */
+__SYSCALL(59, sys_ni_syscall)		/* 59 was sys_olduname */
+#define __NR_umask			60
+__SYSCALL(__NR_umask, sys_umask)
+#define __NR_chroot			61
+__SYSCALL(__NR_chroot, sys_chroot)
+#define __NR_ustat			62
+__SYSCALL(__NR_ustat, sys_ustat)
+#define __NR_dup2			63
+__SYSCALL(__NR_dup2, sys_dup2)
+#define __NR_getppid			64
+__SYSCALL(__NR_getppid, sys_getppid)
+#define __NR_getpgrp			65
+__SYSCALL(__NR_getpgrp, sys_getpgrp)
+#define __NR_setsid			66
+__SYSCALL(__NR_setsid, sys_setsid)
+#define __NR_sigaction			67
+__SYSCALL(__NR_sigaction, sys_sigaction)
+__SYSCALL(68, sys_ni_syscall)		/* 68 was sys_sgetmask */
+__SYSCALL(69, sys_ni_syscall)		/* 69 was sys_ssetmask */
+#define __NR_setreuid			70
+__SYSCALL(__NR_setreuid, sys_setreuid16)
+#define __NR_setregid			71
+__SYSCALL(__NR_setregid, sys_setregid16)
+#define __NR_sigsuspend			72
+__SYSCALL(__NR_sigsuspend, sys_sigsuspend)
+#define __NR_sigpending			73
+__SYSCALL(__NR_sigpending, sys_sigpending)
+#define __NR_sethostname		74
+__SYSCALL(__NR_sethostname, sys_sethostname)
+#define __NR_setrlimit			75
+__SYSCALL(__NR_setrlimit, sys_setrlimit)
+__SYSCALL(76, sys_ni_syscall)		/* 76 was sys_getrlimit */
+#define __NR_getrusage			77
+__SYSCALL(__NR_getrusage, sys_getrusage)
+#define __NR_gettimeofday		78
+__SYSCALL(__NR_gettimeofday, sys_gettimeofday)
+#define __NR_settimeofday		79
+__SYSCALL(__NR_settimeofday, sys_settimeofday)
+#define __NR_getgroups			80
+__SYSCALL(__NR_getgroups, sys_getgroups16)
+#define __NR_setgroups			81
+__SYSCALL(__NR_setgroups, sys_setgroups16)
+__SYSCALL(82, sys_ni_syscall)		/* 82 was sys_select */
+#define __NR_symlink			83
+__SYSCALL(__NR_symlink, sys_symlink)
+__SYSCALL(84, sys_ni_syscall)		/* 84 was sys_lstat */
+#define __NR_readlink			85
+__SYSCALL(__NR_readlink, sys_readlink)
+#define __NR_uselib			86
+__SYSCALL(__NR_uselib, sys_uselib)
+#define __NR_swapon			87
+__SYSCALL(__NR_swapon, sys_swapon)
+#define __NR_reboot			88
+__SYSCALL(__NR_reboot, sys_reboot)
+__SYSCALL(89, sys_ni_syscall)		/* 89 was sys_readdir */
+__SYSCALL(90, sys_ni_syscall)		/* 90 was sys_mmap */
+#define __NR_munmap			91
+__SYSCALL(__NR_munmap, sys_munmap)
+#define __NR_truncate			92
+__SYSCALL(__NR_truncate, sys_truncate)
+#define __NR_ftruncate			93
+__SYSCALL(__NR_ftruncate, sys_ftruncate)
+#define __NR_fchmod			94
+__SYSCALL(__NR_fchmod, sys_fchmod)
+#define __NR_fchown			95
+__SYSCALL(__NR_fchown, sys_fchown16)
+#define __NR_getpriority		96
+__SYSCALL(__NR_getpriority, sys_getpriority)
+#define __NR_setpriority		97
+__SYSCALL(__NR_setpriority, sys_setpriority)
+__SYSCALL(98, sys_ni_syscall)		/* 98 was sys_profil */
+#define __NR_statfs			99
+__SYSCALL(__NR_statfs, sys_statfs)
+#define __NR_fstatfs			100
+__SYSCALL(__NR_fstatfs, sys_fstatfs)
+__SYSCALL(101, sys_ni_syscall)		/* 101 was sys_ioperm */
+__SYSCALL(102, sys_ni_syscall)		/* 102 was sys_socketcall */
+#define __NR_syslog			103
+__SYSCALL(__NR_syslog, sys_syslog)
+#define __NR_setitimer			104
+__SYSCALL(__NR_setitimer, sys_setitimer)
+#define __NR_getitimer			105
+__SYSCALL(__NR_getitimer, sys_getitimer)
+#define __NR_stat			106
+__SYSCALL(__NR_stat, sys_newstat)
+#define __NR_lstat			107
+__SYSCALL(__NR_lstat, sys_newlstat)
+#define __NR_fstat			108
+__SYSCALL(__NR_fstat, sys_newfstat)
+__SYSCALL(109, sys_ni_syscall)		/* 109 was sys_uname */
+__SYSCALL(110, sys_ni_syscall)		/* 110 was sys_iopl */
+#define __NR_vhangup			111
+__SYSCALL(__NR_vhangup, sys_vhangup)
+__SYSCALL(112, sys_ni_syscall)		/* 112 was sys_idle */
+__SYSCALL(113, sys_ni_syscall)		/* 113 was sys_syscall */
+#define __NR_wait4			114
+__SYSCALL(__NR_wait4, sys_wait4)
+#define __NR_swapoff			115
+__SYSCALL(__NR_swapoff, sys_swapoff)
+#define __NR_sysinfo			116
+__SYSCALL(__NR_sysinfo, sys_sysinfo)
+__SYSCALL(117, sys_ni_syscall)		/* 117 was sys_ipc */
+#define __NR_fsync			118
+__SYSCALL(__NR_fsync, sys_fsync)
+#define __NR_sigreturn			119
+__SYSCALL(__NR_sigreturn, sys_sigreturn)
+#define __NR_clone			120
+__SYSCALL(__NR_clone, sys_clone)
+#define __NR_setdomainname		121
+__SYSCALL(__NR_setdomainname, sys_setdomainname)
+#define __NR_uname			122
+__SYSCALL(__NR_uname, sys_newuname)
+__SYSCALL(123, sys_ni_syscall)		/* 123 was sys_modify_ldt */
+#define __NR_adjtimex			124
+__SYSCALL(__NR_adjtimex, sys_adjtimex)
+#define __NR_mprotect			125
+__SYSCALL(__NR_mprotect, sys_mprotect)
+#define __NR_sigprocmask		126
+__SYSCALL(__NR_sigprocmask, sys_sigprocmask)
+__SYSCALL(127, sys_ni_syscall)		/* 127 was sys_create_module */
+#define __NR_init_module		128
+__SYSCALL(__NR_init_module, sys_init_module)
+#define __NR_delete_module		129
+__SYSCALL(__NR_delete_module, sys_delete_module)
+__SYSCALL(130, sys_ni_syscall)		/* 130 was sys_get_kernel_syms */
+#define __NR_quotactl			131
+__SYSCALL(__NR_quotactl, sys_quotactl)
+#define __NR_getpgid			132
+__SYSCALL(__NR_getpgid, sys_getpgid)
+#define __NR_fchdir			133
+__SYSCALL(__NR_fchdir, sys_fchdir)
+#define __NR_bdflush			134
+__SYSCALL(__NR_bdflush, sys_bdflush)
+#define __NR_sysfs			135
+__SYSCALL(__NR_sysfs, sys_sysfs)
+#define __NR_personality		136
+__SYSCALL(__NR_personality, sys_personality)
+__SYSCALL(137, sys_ni_syscall)		/* 137 was sys_afs_syscall */
+#define __NR_setfsuid			138
+__SYSCALL(__NR_setfsuid, sys_setfsuid16)
+#define __NR_setfsgid			139
+__SYSCALL(__NR_setfsgid, sys_setfsgid16)
+#define __NR__llseek			140
+__SYSCALL(__NR__llseek, sys_llseek)
+#define __NR_getdents			141
+__SYSCALL(__NR_getdents, sys_getdents)
+#define __NR__newselect			142
+__SYSCALL(__NR__newselect, sys_select)
+#define __NR_flock			143
+__SYSCALL(__NR_flock, sys_flock)
+#define __NR_msync			144
+__SYSCALL(__NR_msync, sys_msync)
+#define __NR_readv			145
+__SYSCALL(__NR_readv, sys_readv)
+#define __NR_writev			146
+__SYSCALL(__NR_writev, sys_writev)
+#define __NR_getsid			147
+__SYSCALL(__NR_getsid, sys_getsid)
+#define __NR_fdatasync			148
+__SYSCALL(__NR_fdatasync, sys_fdatasync)
+#define __NR__sysctl			149
+__SYSCALL(__NR__sysctl, sys_sysctl)
+#define __NR_mlock			150
+__SYSCALL(__NR_mlock, sys_mlock)
+#define __NR_munlock			151
+__SYSCALL(__NR_munlock, sys_munlock)
+#define __NR_mlockall			152
+__SYSCALL(__NR_mlockall, sys_mlockall)
+#define __NR_munlockall			153
+__SYSCALL(__NR_munlockall, sys_munlockall)
+#define __NR_sched_setparam		154
+__SYSCALL(__NR_sched_setparam, sys_sched_setparam)
+#define __NR_sched_getparam		155
+__SYSCALL(__NR_sched_getparam, sys_sched_getparam)
+#define __NR_sched_setscheduler		156
+__SYSCALL(__NR_sched_setscheduler, sys_sched_setscheduler)
+#define __NR_sched_getscheduler		157
+__SYSCALL(__NR_sched_getscheduler, sys_sched_getscheduler)
+#define __NR_sched_yield		158
+__SYSCALL(__NR_sched_yield, sys_sched_yield)
+#define __NR_sched_get_priority_max	159
+__SYSCALL(__NR_sched_get_priority_max, sys_sched_get_priority_max)
+#define __NR_sched_get_priority_min	160
+__SYSCALL(__NR_sched_get_priority_min, sys_sched_get_priority_min)
+#define __NR_sched_rr_get_interval	161
+__SYSCALL(__NR_sched_rr_get_interval, sys_sched_rr_get_interval)
+#define __NR_nanosleep			162
+__SYSCALL(__NR_nanosleep, sys_nanosleep)
+#define __NR_mremap			163
+__SYSCALL(__NR_mremap, sys_mremap)
+#define __NR_setresuid			164
+__SYSCALL(__NR_setresuid, sys_setresuid16)
+#define __NR_getresuid			165
+__SYSCALL(__NR_getresuid, sys_getresuid16)
+__SYSCALL(166, sys_ni_syscall)		/* 166 was sys_vm86 */
+__SYSCALL(167, sys_ni_syscall)		/* 167 was sys_query_module */
+#define __NR_poll			168
+__SYSCALL(__NR_poll, sys_poll)
+#define __NR_nfsservctl			169
+__SYSCALL(__NR_nfsservctl, sys_ni_syscall)
+#define __NR_setresgid			170
+__SYSCALL(__NR_setresgid, sys_setresgid16)
+#define __NR_getresgid			171
+__SYSCALL(__NR_getresgid, sys_getresgid16)
+#define __NR_prctl			172
+__SYSCALL(__NR_prctl, sys_prctl)
+#define __NR_rt_sigreturn		173
+__SYSCALL(__NR_rt_sigreturn, sys_rt_sigreturn)
+#define __NR_rt_sigaction		174
+__SYSCALL(__NR_rt_sigaction, sys_rt_sigaction)
+#define __NR_rt_sigprocmask		175
+__SYSCALL(__NR_rt_sigprocmask, sys_rt_sigprocmask)
+#define __NR_rt_sigpending		176
+__SYSCALL(__NR_rt_sigpending, sys_rt_sigpending)
+#define __NR_rt_sigtimedwait		177
+__SYSCALL(__NR_rt_sigtimedwait, sys_rt_sigtimedwait)
+#define __NR_rt_sigqueueinfo		178
+__SYSCALL(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo)
+#define __NR_rt_sigsuspend		179
+__SYSCALL(__NR_rt_sigsuspend, sys_rt_sigsuspend)
+#define __NR_pread64			180
+__SYSCALL(__NR_pread64, sys_pread64)
+#define __NR_pwrite64			181
+__SYSCALL(__NR_pwrite64, sys_pwrite64)
+#define __NR_chown			182
+__SYSCALL(__NR_chown, sys_chown16)
+#define __NR_getcwd			183
+__SYSCALL(__NR_getcwd, sys_getcwd)
+#define __NR_capget			184
+__SYSCALL(__NR_capget, sys_capget)
+#define __NR_capset			185
+__SYSCALL(__NR_capset, sys_capset)
+#define __NR_sigaltstack		186
+__SYSCALL(__NR_sigaltstack, sys_sigaltstack)
+#define __NR_sendfile			187
+__SYSCALL(__NR_sendfile, sys_sendfile)
+__SYSCALL(188, sys_ni_syscall)		/* 188 reserved */
+__SYSCALL(189, sys_ni_syscall)		/* 189 reserved */
+#define __NR_vfork			190
+__SYSCALL(__NR_vfork, sys_vfork)
+#define __NR_ugetrlimit			191	/* SuS compliant getrlimit */
+__SYSCALL(__NR_ugetrlimit, sys_getrlimit)
+#define __NR_mmap2			192
+__SYSCALL(__NR_mmap2, sys_mmap2)
+#define __NR_truncate64			193
+__SYSCALL(__NR_truncate64, sys_truncate64)
+#define __NR_ftruncate64		194
+__SYSCALL(__NR_ftruncate64, sys_ftruncate64)
+#define __NR_stat64			195
+__SYSCALL(__NR_stat64, sys_stat64)
+#define __NR_lstat64			196
+__SYSCALL(__NR_lstat64, sys_lstat64)
+#define __NR_fstat64			197
+__SYSCALL(__NR_fstat64, sys_fstat64)
+#define __NR_lchown32			198
+__SYSCALL(__NR_lchown32, sys_lchown)
+#define __NR_getuid32			199
+__SYSCALL(__NR_getuid32, sys_getuid)
+#define __NR_getgid32			200
+__SYSCALL(__NR_getgid32, sys_getgid)
+#define __NR_geteuid32			201
+__SYSCALL(__NR_geteuid32, sys_geteuid)
+#define __NR_getegid32			202
+__SYSCALL(__NR_getegid32, sys_getegid)
+#define __NR_setreuid32			203
+__SYSCALL(__NR_setreuid32, sys_setreuid)
+#define __NR_setregid32			204
+__SYSCALL(__NR_setregid32, sys_setregid)
+#define __NR_getgroups32		205
+__SYSCALL(__NR_getgroups32, sys_getgroups)
+#define __NR_setgroups32		206
+__SYSCALL(__NR_setgroups32, sys_setgroups)
+#define __NR_fchown32			207
+__SYSCALL(__NR_fchown32, sys_fchown)
+#define __NR_setresuid32		208
+__SYSCALL(__NR_setresuid32, sys_setresuid)
+#define __NR_getresuid32		209
+__SYSCALL(__NR_getresuid32, sys_getresuid)
+#define __NR_setresgid32		210
+__SYSCALL(__NR_setresgid32, sys_setresgid)
+#define __NR_getresgid32		211
+__SYSCALL(__NR_getresgid32, sys_getresgid)
+#define __NR_chown32			212
+__SYSCALL(__NR_chown32, sys_chown)
+#define __NR_setuid32			213
+__SYSCALL(__NR_setuid32, sys_setuid)
+#define __NR_setgid32			214
+__SYSCALL(__NR_setgid32, sys_setgid)
+#define __NR_setfsuid32			215
+__SYSCALL(__NR_setfsuid32, sys_setfsuid)
+#define __NR_setfsgid32			216
+__SYSCALL(__NR_setfsgid32, sys_setfsgid)
+#define __NR_getdents64			217
+__SYSCALL(__NR_getdents64, sys_getdents64)
+#define __NR_pivot_root			218
+__SYSCALL(__NR_pivot_root, sys_pivot_root)
+#define __NR_mincore			219
+__SYSCALL(__NR_mincore, sys_mincore)
+#define __NR_madvise			220
+__SYSCALL(__NR_madvise, sys_madvise)
+#define __NR_fcntl64			221
+__SYSCALL(__NR_fcntl64, sys_fcntl64)
+__SYSCALL(222, sys_ni_syscall)		/* 222 for tux */
+__SYSCALL(223, sys_ni_syscall)		/* 223 is unused */
+#define __NR_gettid			224
+__SYSCALL(__NR_gettid, sys_gettid)
+#define __NR_readahead			225
+__SYSCALL(__NR_readahead, sys_readahead)
+#define __NR_setxattr			226
+__SYSCALL(__NR_setxattr, sys_setxattr)
+#define __NR_lsetxattr			227
+__SYSCALL(__NR_lsetxattr, sys_lsetxattr)
+#define __NR_fsetxattr			228
+__SYSCALL(__NR_fsetxattr, sys_fsetxattr)
+#define __NR_getxattr			229
+__SYSCALL(__NR_getxattr, sys_getxattr)
+#define __NR_lgetxattr			230
+__SYSCALL(__NR_lgetxattr, sys_lgetxattr)
+#define __NR_fgetxattr			231
+__SYSCALL(__NR_fgetxattr, sys_fgetxattr)
+#define __NR_listxattr			232
+__SYSCALL(__NR_listxattr, sys_listxattr)
+#define __NR_llistxattr			233
+__SYSCALL(__NR_llistxattr, sys_llistxattr)
+#define __NR_flistxattr			234
+__SYSCALL(__NR_flistxattr, sys_flistxattr)
+#define __NR_removexattr		235
+__SYSCALL(__NR_removexattr, sys_removexattr)
+#define __NR_lremovexattr		236
+__SYSCALL(__NR_lremovexattr, sys_lremovexattr)
+#define __NR_fremovexattr		237
+__SYSCALL(__NR_fremovexattr, sys_fremovexattr)
+#define __NR_tkill			238
+__SYSCALL(__NR_tkill, sys_tkill)
+#define __NR_sendfile64			239
+__SYSCALL(__NR_sendfile64, sys_sendfile64)
+#define __NR_futex			240
+__SYSCALL(__NR_futex, sys_futex)
+#define __NR_sched_setaffinity		241
+__SYSCALL(__NR_sched_setaffinity, sys_sched_setaffinity)
+#define __NR_sched_getaffinity		242
+__SYSCALL(__NR_sched_getaffinity, sys_sched_getaffinity)
+#define __NR_io_setup			243
+__SYSCALL(__NR_io_setup, sys_io_setup)
+#define __NR_io_destroy			244
+__SYSCALL(__NR_io_destroy, sys_io_destroy)
+#define __NR_io_getevents		245
+__SYSCALL(__NR_io_getevents, sys_io_getevents)
+#define __NR_io_submit			246
+__SYSCALL(__NR_io_submit, sys_io_submit)
+#define __NR_io_cancel			247
+__SYSCALL(__NR_io_cancel, sys_io_cancel)
+#define __NR_exit_group			248
+__SYSCALL(__NR_exit_group, sys_exit_group)
+#define __NR_lookup_dcookie		249
+__SYSCALL(__NR_lookup_dcookie, sys_lookup_dcookie)
+#define __NR_epoll_create		250
+__SYSCALL(__NR_epoll_create, sys_epoll_create)
+#define __NR_epoll_ctl			251
+__SYSCALL(__NR_epoll_ctl, sys_epoll_ctl)
+#define __NR_epoll_wait			252
+__SYSCALL(__NR_epoll_wait, sys_epoll_wait)
+#define __NR_remap_file_pages		253
+__SYSCALL(__NR_remap_file_pages, sys_remap_file_pages)
+__SYSCALL(254, sys_ni_syscall)		/* 254 for set_thread_area */
+__SYSCALL(255, sys_ni_syscall)		/* 255 for get_thread_area */
+#define __NR_set_tid_address		256
+__SYSCALL(__NR_set_tid_address, sys_set_tid_address)
+#define __NR_timer_create		257
+__SYSCALL(__NR_timer_create, sys_timer_create)
+#define __NR_timer_settime		258
+__SYSCALL(__NR_timer_settime, sys_timer_settime)
+#define __NR_timer_gettime		259
+__SYSCALL(__NR_timer_gettime, sys_timer_gettime)
+#define __NR_timer_getoverrun		260
+__SYSCALL(__NR_timer_getoverrun, sys_timer_getoverrun)
+#define __NR_timer_delete		261
+__SYSCALL(__NR_timer_delete, sys_timer_delete)
+#define __NR_clock_settime		262
+__SYSCALL(__NR_clock_settime, sys_clock_settime)
+#define __NR_clock_gettime		263
+__SYSCALL(__NR_clock_gettime, sys_clock_gettime)
+#define __NR_clock_getres		264
+__SYSCALL(__NR_clock_getres, sys_clock_getres)
+#define __NR_clock_nanosleep		265
+__SYSCALL(__NR_clock_nanosleep, sys_clock_nanosleep)
+#define __NR_statfs64			266
+__SYSCALL(__NR_statfs64, sys_statfs64)
+#define __NR_fstatfs64			267
+__SYSCALL(__NR_fstatfs64, sys_fstatfs64)
+#define __NR_tgkill			268
+__SYSCALL(__NR_tgkill, sys_tgkill)
+#define __NR_utimes			269
+__SYSCALL(__NR_utimes, sys_utimes)
+#define __NR_fadvise64			270
+__SYSCALL(__NR_fadvise64, sys_fadvise64_64)
+#define __NR_pciconfig_iobase		271
+__SYSCALL(__NR_pciconfig_iobase, sys_pciconfig_iobase)
+#define __NR_pciconfig_read		272
+__SYSCALL(__NR_pciconfig_read, sys_pciconfig_read)
+#define __NR_pciconfig_write		273
+__SYSCALL(__NR_pciconfig_write, sys_pciconfig_write)
+#define __NR_mq_open			274
+__SYSCALL(__NR_mq_open, sys_mq_open)
+#define __NR_mq_unlink			275
+__SYSCALL(__NR_mq_unlink, sys_mq_unlink)
+#define __NR_mq_timedsend		276
+__SYSCALL(__NR_mq_timedsend, sys_mq_timedsend)
+#define __NR_mq_timedreceive		277
+__SYSCALL(__NR_mq_timedreceive, sys_mq_timedreceive)
+#define __NR_mq_notify			278
+__SYSCALL(__NR_mq_notify, sys_mq_notify)
+#define __NR_mq_getsetattr		279
+__SYSCALL(__NR_mq_getsetattr, sys_mq_getsetattr)
+#define __NR_waitid			280
+__SYSCALL(__NR_waitid, sys_waitid)
+#define __NR_socket			281
+__SYSCALL(__NR_socket, sys_socket)
+#define __NR_bind			282
+__SYSCALL(__NR_bind, sys_bind)
+#define __NR_connect			283
+__SYSCALL(__NR_connect, sys_connect)
+#define __NR_listen			284
+__SYSCALL(__NR_listen, sys_listen)
+#define __NR_accept			285
+__SYSCALL(__NR_accept, sys_accept)
+#define __NR_getsockname		286
+__SYSCALL(__NR_getsockname, sys_getsockname)
+#define __NR_getpeername		287
+__SYSCALL(__NR_getpeername, sys_getpeername)
+#define __NR_socketpair			288
+__SYSCALL(__NR_socketpair, sys_socketpair)
+#define __NR_send			289
+__SYSCALL(__NR_send, sys_send)
+#define __NR_sendto			290
+__SYSCALL(__NR_sendto, sys_sendto)
+#define __NR_recv			291
+__SYSCALL(__NR_recv, sys_recv)
+#define __NR_recvfrom			292
+__SYSCALL(__NR_recvfrom, sys_recvfrom)
+#define __NR_shutdown			293
+__SYSCALL(__NR_shutdown, sys_shutdown)
+#define __NR_setsockopt			294
+__SYSCALL(__NR_setsockopt, sys_setsockopt)
+#define __NR_getsockopt			295
+__SYSCALL(__NR_getsockopt, sys_getsockopt)
+#define __NR_sendmsg			296
+__SYSCALL(__NR_sendmsg, sys_sendmsg)
+#define __NR_recvmsg			297
+__SYSCALL(__NR_recvmsg, sys_recvmsg)
+#define __NR_semop			298
+__SYSCALL(__NR_semop, sys_semop)
+#define __NR_semget			299
+__SYSCALL(__NR_semget, sys_semget)
+#define __NR_semctl			300
+__SYSCALL(__NR_semctl, sys_semctl)
+#define __NR_msgsnd			301
+__SYSCALL(__NR_msgsnd, sys_msgsnd)
+#define __NR_msgrcv			302
+__SYSCALL(__NR_msgrcv, sys_msgrcv)
+#define __NR_msgget			303
+__SYSCALL(__NR_msgget, sys_msgget)
+#define __NR_msgctl			304
+__SYSCALL(__NR_msgctl, sys_msgctl)
+#define __NR_shmat			305
+__SYSCALL(__NR_shmat, sys_shmat)
+#define __NR_shmdt			306
+__SYSCALL(__NR_shmdt, sys_shmdt)
+#define __NR_shmget			307
+__SYSCALL(__NR_shmget, sys_shmget)
+#define __NR_shmctl			308
+__SYSCALL(__NR_shmctl, sys_shmctl)
+#define __NR_add_key			309
+__SYSCALL(__NR_add_key, sys_add_key)
+#define __NR_request_key		310
+__SYSCALL(__NR_request_key, sys_request_key)
+#define __NR_keyctl			311
+__SYSCALL(__NR_keyctl, sys_keyctl)
+#define __NR_semtimedop			312
+__SYSCALL(__NR_semtimedop, sys_semtimedop)
+#define __NR_vserver			313
+__SYSCALL(__NR_vserver, sys_ni_syscall)
+#define __NR_ioprio_set			314
+__SYSCALL(__NR_ioprio_set, sys_ioprio_set)
+#define __NR_ioprio_get			315
+__SYSCALL(__NR_ioprio_get, sys_ioprio_get)
+#define __NR_inotify_init		316
+__SYSCALL(__NR_inotify_init, sys_inotify_init)
+#define __NR_inotify_add_watch		317
+__SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch)
+#define __NR_inotify_rm_watch		318
+__SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch)
+#define __NR_mbind			319
+__SYSCALL(__NR_mbind, sys_mbind)
+#define __NR_get_mempolicy		320
+__SYSCALL(__NR_get_mempolicy, sys_get_mempolicy)
+#define __NR_set_mempolicy		321
+__SYSCALL(__NR_set_mempolicy, sys_set_mempolicy)
+#define __NR_openat			322
+__SYSCALL(__NR_openat, sys_openat)
+#define __NR_mkdirat			323
+__SYSCALL(__NR_mkdirat, sys_mkdirat)
+#define __NR_mknodat			324
+__SYSCALL(__NR_mknodat, sys_mknodat)
+#define __NR_fchownat			325
+__SYSCALL(__NR_fchownat, sys_fchownat)
+#define __NR_futimesat			326
+__SYSCALL(__NR_futimesat, sys_futimesat)
+#define __NR_fstatat64			327
+__SYSCALL(__NR_fstatat64, sys_fstatat64)
+#define __NR_unlinkat			328
+__SYSCALL(__NR_unlinkat, sys_unlinkat)
+#define __NR_renameat			329
+__SYSCALL(__NR_renameat, sys_renameat)
+#define __NR_linkat			330
+__SYSCALL(__NR_linkat, sys_linkat)
+#define __NR_symlinkat			331
+__SYSCALL(__NR_symlinkat, sys_symlinkat)
+#define __NR_readlinkat			332
+__SYSCALL(__NR_readlinkat, sys_readlinkat)
+#define __NR_fchmodat			333
+__SYSCALL(__NR_fchmodat, sys_fchmodat)
+#define __NR_faccessat			334
+__SYSCALL(__NR_faccessat, sys_faccessat)
+#define __NR_pselect6			335
+__SYSCALL(__NR_pselect6, sys_pselect6)
+#define __NR_ppoll			336
+__SYSCALL(__NR_ppoll, sys_ppoll)
+#define __NR_unshare			337
+__SYSCALL(__NR_unshare, sys_unshare)
+#define __NR_set_robust_list		338
+__SYSCALL(__NR_set_robust_list, sys_set_robust_list)
+#define __NR_get_robust_list		339
+__SYSCALL(__NR_get_robust_list, sys_get_robust_list)
+#define __NR_splice			340
+__SYSCALL(__NR_splice, sys_splice)
+#define __NR_sync_file_range2		341
+__SYSCALL(__NR_sync_file_range2, sys_sync_file_range2)
+#define __NR_tee			342
+__SYSCALL(__NR_tee, sys_tee)
+#define __NR_vmsplice			343
+__SYSCALL(__NR_vmsplice, sys_vmsplice)
+#define __NR_move_pages			344
+__SYSCALL(__NR_move_pages, sys_move_pages)
+#define __NR_getcpu			345
+__SYSCALL(__NR_getcpu, sys_getcpu)
+#define __NR_epoll_pwait		346
+__SYSCALL(__NR_epoll_pwait, sys_epoll_pwait)
+#define __NR_kexec_load			347
+__SYSCALL(__NR_kexec_load, sys_kexec_load)
+#define __NR_utimensat			348
+__SYSCALL(__NR_utimensat, sys_utimensat)
+#define __NR_signalfd			349
+__SYSCALL(__NR_signalfd, sys_signalfd)
+#define __NR_timerfd_create		350
+__SYSCALL(__NR_timerfd_create, sys_timerfd_create)
+#define __NR_eventfd			351
+__SYSCALL(__NR_eventfd, sys_eventfd)
+#define __NR_fallocate			352
+__SYSCALL(__NR_fallocate, sys_fallocate)
+#define __NR_timerfd_settime		353
+__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
+#define __NR_timerfd_gettime		354
+__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
+#define __NR_signalfd4			355
+__SYSCALL(__NR_signalfd4, sys_signalfd4)
+#define __NR_eventfd2			356
+__SYSCALL(__NR_eventfd2, sys_eventfd2)
+#define __NR_epoll_create1		357
+__SYSCALL(__NR_epoll_create1, sys_epoll_create1)
+#define __NR_dup3			358
+__SYSCALL(__NR_dup3, sys_dup3)
+#define __NR_pipe2			359
+__SYSCALL(__NR_pipe2, sys_pipe2)
+#define __NR_inotify_init1		360
+__SYSCALL(__NR_inotify_init1, sys_inotify_init1)
+#define __NR_preadv			361
+__SYSCALL(__NR_preadv, sys_preadv)
+#define __NR_pwritev			362
+__SYSCALL(__NR_pwritev, sys_pwritev)
+#define __NR_rt_tgsigqueueinfo		363
+__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
+#define __NR_perf_event_open		364
+__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
+#define __NR_recvmmsg			365
+__SYSCALL(__NR_recvmmsg, sys_recvmmsg)
+#define __NR_accept4			366
+__SYSCALL(__NR_accept4, sys_accept4)
+#define __NR_fanotify_init		367
+__SYSCALL(__NR_fanotify_init, sys_fanotify_init)
+#define __NR_fanotify_mark		368
+__SYSCALL(__NR_fanotify_mark, sys_fanotify_mark)
+#define __NR_prlimit64			369
+__SYSCALL(__NR_prlimit64, sys_prlimit64)
+#define __NR_name_to_handle_at		370
+__SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at)
+#define __NR_open_by_handle_at		371
+__SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at)
+#define __NR_clock_adjtime		372
+__SYSCALL(__NR_clock_adjtime, sys_clock_adjtime)
+#define __NR_syncfs			373
+__SYSCALL(__NR_syncfs, sys_syncfs)
+
+/*
+ * The following SVCs are ARM private.
+ */
+#define __ARM_NR_COMPAT_BASE		0x0f0000
+#define __ARM_NR_compat_cacheflush	(__ARM_NR_COMPAT_BASE+2)
+#define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE+5)
+
+#endif	/* __SYSCALL_COMPAT */
+
+#define __NR_compat_syscalls		374
+
+#define __ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+#define __ARCH_WANT_COMPAT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+
+#endif /* __ASM_UNISTD32_H */
diff --git a/arch/arm64/kernel/kuser32.S b/arch/arm64/kernel/kuser32.S
new file mode 100644
index 0000000..c3bab17
--- /dev/null
+++ b/arch/arm64/kernel/kuser32.S
@@ -0,0 +1,77 @@
+/*
+ * Low-level user helpers placed in the vectors page for AArch32.
+ *
+ * Copyright (C) 1996-2000 Russell King.
+ * Copyright (C) 2012 ARM Ltd
+ * Author: Will Deacon <will.deacon@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * AArch32 user helpers.
+ *
+ * Each segment is 32-byte aligned and will be moved to the top of the high
+ * vector page.  New segments (if ever needed) must be added in front of
+ * existing ones.  This mechanism should be used only for things that are
+ * really small and justified, and not be abused freely.
+ *
+ * See Documentation/arm/kernel_user_helpers.txt for formal definitions.
+ */
+	.align	5
+	.globl	__kuser_helper_start
+__kuser_helper_start:
+
+__kuser_cmpxchg64:			// 0xffff0f60
+	.inst	0xe92d00f0		//	push		{r4, r5, r6, r7}
+	.inst	0xe1c040d0		//	ldrd		r4, r5, [r0]
+	.inst	0xe1c160d0		//	ldrd		r6, r7, [r1]
+	.inst	0xf57ff05f		//	dmb		sy
+	.inst	0xe1b20f9f		// 1:	ldrexd		r0, r1, [r2]
+	.inst	0xe0303004		//	eors		r3, r0, r4
+	.inst	0x00313005		//	eoreqs		r3, r1, r5
+	.inst	0x01a23f96		//	strexdeq	r3, r6, [r2]
+	.inst	0x03330001		//	teqeq		r3, #1
+	.inst	0x0afffff9		//	beq		1b
+	.inst	0xf57ff05f		//	dmb		sy
+	.inst	0xe2730000		//	rsbs		r0, r3, #0
+	.inst	0xe8bd00f0		//	pop		{r4, r5, r6, r7}
+	.inst	0xe12fff1e		//	bx		lr
+
+	.align	5
+__kuser_memory_barrier:			// 0xffff0fa0
+	.inst	0xf57ff05f		// dmb	sy
+	.inst	0xe12fff1e		// bx	lr
+
+	.align	5
+__kuser_cmpxchg:			// 0xffff0fc0
+	.inst	0xf57ff05f		//	dmb		sy
+	.inst	0xe1923f9f		// 1:	ldrex		r3, [r2]
+	.inst	0xe0533000		//	subs		r3, r3, r0
+	.inst	0x01823f91		//	strexeq	r3, r1, [r2]
+	.inst	0x03330001		//	teqeq		r3, #1
+	.inst	0x0afffffa		//	beq		1b
+	.inst	0xe2730000		//	rsbs		r0, r3, #0
+	.inst	0xeaffffef		//	b		<__kuser_memory_barrier>
+
+	.align	5
+__kuser_get_tls:			// 0xffff0fe0
+	.inst	0xee1d0f70		// mrc	p15, 0, r0, c13, c0, 3
+	.inst	0xe12fff1e		// bx	lr
+	.rep	5
+	.word	0
+	.endr
+
+__kuser_helper_version:			// 0xffff0ffc
+	.word	((__kuser_helper_end - __kuser_helper_start) >> 5)
+	.globl	__kuser_helper_end
+__kuser_helper_end:
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
new file mode 100644
index 0000000..4bb754c
--- /dev/null
+++ b/arch/arm64/kernel/signal32.c
@@ -0,0 +1,876 @@
+/*
+ * Based on arch/arm/kernel/signal.c
+ *
+ * Copyright (C) 1995-2009 Russell King
+ * Copyright (C) 2012 ARM Ltd.
+ * Modified by Will Deacon <will.deacon@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define __SYSCALL_COMPAT
+
+#include <linux/compat.h>
+#include <linux/signal.h>
+#include <linux/syscalls.h>
+#include <linux/ratelimit.h>
+
+#include <asm/fpsimd.h>
+#include <asm/signal32.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+
+typedef struct compat_siginfo {
+	int si_signo;
+	int si_errno;
+	int si_code;
+
+	union {
+		/* The padding is the same size as AArch64. */
+		int _pad[SI_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__compat_uid32_t _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			compat_timer_t _tid;	/* timer id */
+			int _overrun;		/* overrun count */
+			compat_sigval_t _sigval;	/* same as below */
+			int _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__compat_uid32_t _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;	/* which child */
+			__compat_uid32_t _uid;	/* sender's uid */
+			int _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			compat_uptr_t _addr; /* faulting insn/memory ref. */
+			short _addr_lsb; /* LSB of the reported address */
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			compat_long_t _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+	} _sifields;
+} compat_siginfo_t;
+
+struct compat_sigaction {
+	compat_uptr_t			sa_handler;
+	compat_ulong_t			sa_flags;
+	compat_uptr_t			sa_restorer;
+	compat_sigset_t			sa_mask;
+};
+
+struct compat_old_sigaction {
+	compat_uptr_t			sa_handler;
+	compat_old_sigset_t		sa_mask;
+	compat_ulong_t			sa_flags;
+	compat_uptr_t			sa_restorer;
+};
+
+typedef struct compat_sigaltstack {
+	compat_uptr_t			ss_sp;
+	int				ss_flags;
+	compat_size_t			ss_size;
+} compat_stack_t;
+
+struct compat_sigcontext {
+	/* We always set these two fields to 0 */
+	compat_ulong_t			trap_no;
+	compat_ulong_t			error_code;
+
+	compat_ulong_t			oldmask;
+	compat_ulong_t			arm_r0;
+	compat_ulong_t			arm_r1;
+	compat_ulong_t			arm_r2;
+	compat_ulong_t			arm_r3;
+	compat_ulong_t			arm_r4;
+	compat_ulong_t			arm_r5;
+	compat_ulong_t			arm_r6;
+	compat_ulong_t			arm_r7;
+	compat_ulong_t			arm_r8;
+	compat_ulong_t			arm_r9;
+	compat_ulong_t			arm_r10;
+	compat_ulong_t			arm_fp;
+	compat_ulong_t			arm_ip;
+	compat_ulong_t			arm_sp;
+	compat_ulong_t			arm_lr;
+	compat_ulong_t			arm_pc;
+	compat_ulong_t			arm_cpsr;
+	compat_ulong_t			fault_address;
+};
+
+struct compat_ucontext {
+	compat_ulong_t			uc_flags;
+	struct compat_ucontext		*uc_link;
+	compat_stack_t			uc_stack;
+	struct compat_sigcontext	uc_mcontext;
+	compat_sigset_t			uc_sigmask;
+	int		__unused[32 - (sizeof (compat_sigset_t) / sizeof (int))];
+	compat_ulong_t	uc_regspace[128] __attribute__((__aligned__(8)));
+};
+
+struct compat_vfp_sigframe {
+	compat_ulong_t	magic;
+	compat_ulong_t	size;
+	struct compat_user_vfp {
+		compat_u64	fpregs[32];
+		compat_ulong_t	fpscr;
+	} ufp;
+	struct compat_user_vfp_exc {
+		compat_ulong_t	fpexc;
+		compat_ulong_t	fpinst;
+		compat_ulong_t	fpinst2;
+	} ufp_exc;
+} __attribute__((__aligned__(8)));
+
+#define VFP_MAGIC		0x56465001
+#define VFP_STORAGE_SIZE	sizeof(struct compat_vfp_sigframe)
+
+struct compat_aux_sigframe {
+	struct compat_vfp_sigframe	vfp;
+
+	/* Something that isn't a valid magic number for any coprocessor.  */
+	unsigned long			end_magic;
+} __attribute__((__aligned__(8)));
+
+struct compat_sigframe {
+	struct compat_ucontext	uc;
+	compat_ulong_t		retcode[2];
+};
+
+struct compat_rt_sigframe {
+	struct compat_siginfo info;
+	struct compat_sigframe sig;
+};
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+/*
+ * For ARM syscalls, the syscall number has to be loaded into r7.
+ * We do not support an OABI userspace.
+ */
+#define MOV_R7_NR_SIGRETURN	(0xe3a07000 | __NR_sigreturn)
+#define SVC_SYS_SIGRETURN	(0xef000000 | __NR_sigreturn)
+#define MOV_R7_NR_RT_SIGRETURN	(0xe3a07000 | __NR_rt_sigreturn)
+#define SVC_SYS_RT_SIGRETURN	(0xef000000 | __NR_rt_sigreturn)
+
+/*
+ * For Thumb syscalls, we also pass the syscall number via r7. We therefore
+ * need two 16-bit instructions.
+ */
+#define SVC_THUMB_SIGRETURN	(((0xdf00 | __NR_sigreturn) << 16) | \
+				   0x2700 | __NR_sigreturn)
+#define SVC_THUMB_RT_SIGRETURN	(((0xdf00 | __NR_rt_sigreturn) << 16) | \
+				   0x2700 | __NR_rt_sigreturn)
+
+const compat_ulong_t aarch32_sigret_code[6] = {
+	/*
+	 * AArch32 sigreturn code.
+	 * We don't construct an OABI SWI - instead we just set the imm24 field
+	 * to the EABI syscall number so that we create a sane disassembly.
+	 */
+	MOV_R7_NR_SIGRETURN,    SVC_SYS_SIGRETURN,    SVC_THUMB_SIGRETURN,
+	MOV_R7_NR_RT_SIGRETURN, SVC_SYS_RT_SIGRETURN, SVC_THUMB_RT_SIGRETURN,
+};
+
+static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
+{
+	compat_sigset_t	cset;
+
+	cset.sig[0] = set->sig[0] & 0xffffffffull;
+	cset.sig[1] = set->sig[0] >> 32;
+
+	return copy_to_user(uset, &cset, sizeof(*uset));
+}
+
+static inline int get_sigset_t(sigset_t *set,
+			       const compat_sigset_t __user *uset)
+{
+	compat_sigset_t s32;
+
+	if (copy_from_user(&s32, uset, sizeof(*uset)))
+		return -EFAULT;
+
+	set->sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
+	return 0;
+}
+
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+{
+	int err;
+
+	if (!access_ok(VERIFY_WRITE, to, sizeof(*to)))
+		return -EFAULT;
+
+	/* If you change siginfo_t structure, please be sure
+	 * this code is fixed accordingly.
+	 * It should never copy any pad contained in the structure
+	 * to avoid security leaks, but must copy the generic
+	 * 3 ints plus the relevant union member.
+	 * This routine must convert siginfo from 64bit to 32bit as well
+	 * at the same time.
+	 */
+	err = __put_user(from->si_signo, &to->si_signo);
+	err |= __put_user(from->si_errno, &to->si_errno);
+	err |= __put_user((short)from->si_code, &to->si_code);
+	if (from->si_code < 0)
+		err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad,
+				      SI_PAD_SIZE);
+	else switch (from->si_code & __SI_MASK) {
+	case __SI_KILL:
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		break;
+	case __SI_TIMER:
+		 err |= __put_user(from->si_tid, &to->si_tid);
+		 err |= __put_user(from->si_overrun, &to->si_overrun);
+		 err |= __put_user((compat_uptr_t)(unsigned long)from->si_ptr,
+				   &to->si_ptr);
+		break;
+	case __SI_POLL:
+		err |= __put_user(from->si_band, &to->si_band);
+		err |= __put_user(from->si_fd, &to->si_fd);
+		break;
+	case __SI_FAULT:
+		err |= __put_user((compat_uptr_t)(unsigned long)from->si_addr,
+				  &to->si_addr);
+#ifdef BUS_MCEERR_AO
+		/*
+		 * Other callers might not initialize the si_lsb field,
+		 * so check explicitely for the right codes here.
+		 */
+		if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+			err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
+#endif
+		break;
+	case __SI_CHLD:
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		err |= __put_user(from->si_status, &to->si_status);
+		err |= __put_user(from->si_utime, &to->si_utime);
+		err |= __put_user(from->si_stime, &to->si_stime);
+		break;
+	case __SI_RT: /* This is not generated by the kernel as of now. */
+	case __SI_MESGQ: /* But this is */
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		err |= __put_user((compat_uptr_t)(unsigned long)from->si_ptr, &to->si_ptr);
+		break;
+	default: /* this is just in case for now ... */
+		err |= __put_user(from->si_pid, &to->si_pid);
+		err |= __put_user(from->si_uid, &to->si_uid);
+		break;
+	}
+	return err;
+}
+
+int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
+{
+	memset(to, 0, sizeof *to);
+
+	if (copy_from_user(to, from, __ARCH_SI_PREAMBLE_SIZE) ||
+	    copy_from_user(to->_sifields._pad,
+			   from->_sifields._pad, SI_PAD_SIZE))
+		return -EFAULT;
+
+	return 0;
+}
+
+/*
+ * VFP save/restore code.
+ */
+static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame)
+{
+	struct fpsimd_state *fpsimd = &current->thread.fpsimd_state;
+	compat_ulong_t magic = VFP_MAGIC;
+	compat_ulong_t size = VFP_STORAGE_SIZE;
+	compat_ulong_t fpscr, fpexc;
+	int err = 0;
+
+	/*
+	 * Save the hardware registers to the fpsimd_state structure.
+	 * Note that this also saves V16-31, which aren't visible
+	 * in AArch32.
+	 */
+	fpsimd_save_state(fpsimd);
+
+	/* Place structure header on the stack */
+	__put_user_error(magic, &frame->magic, err);
+	__put_user_error(size, &frame->size, err);
+
+	/*
+	 * Now copy the FP registers. Since the registers are packed,
+	 * we can copy the prefix we want (V0-V15) as it is.
+	 * FIXME: Won't work if big endian.
+	 */
+	err |= __copy_to_user(&frame->ufp.fpregs, fpsimd->vregs,
+			      sizeof(frame->ufp.fpregs));
+
+	/* Create an AArch32 fpscr from the fpsr and the fpcr. */
+	fpscr = (fpsimd->fpsr & VFP_FPSCR_STAT_MASK) |
+		(fpsimd->fpcr & VFP_FPSCR_CTRL_MASK);
+	__put_user_error(fpscr, &frame->ufp.fpscr, err);
+
+	/*
+	 * The exception register aren't available so we fake up a
+	 * basic FPEXC and zero everything else.
+	 */
+	fpexc = (1 << 30);
+	__put_user_error(fpexc, &frame->ufp_exc.fpexc, err);
+	__put_user_error(0, &frame->ufp_exc.fpinst, err);
+	__put_user_error(0, &frame->ufp_exc.fpinst2, err);
+
+	return err ? -EFAULT : 0;
+}
+
+static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame)
+{
+	struct fpsimd_state fpsimd;
+	compat_ulong_t magic = VFP_MAGIC;
+	compat_ulong_t size = VFP_STORAGE_SIZE;
+	compat_ulong_t fpscr;
+	int err = 0;
+
+	__get_user_error(magic, &frame->magic, err);
+	__get_user_error(size, &frame->size, err);
+
+	if (err)
+		return -EFAULT;
+	if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
+		return -EINVAL;
+
+	/*
+	 * Copy the FP registers into the start of the fpsimd_state.
+	 * FIXME: Won't work if big endian.
+	 */
+	err |= __copy_from_user(fpsimd.vregs, frame->ufp.fpregs,
+				sizeof(frame->ufp.fpregs));
+
+	/* Extract the fpsr and the fpcr from the fpscr */
+	__get_user_error(fpscr, &frame->ufp.fpscr, err);
+	fpsimd.fpsr = fpscr & VFP_FPSCR_STAT_MASK;
+	fpsimd.fpcr = fpscr & VFP_FPSCR_CTRL_MASK;
+
+	/*
+	 * We don't need to touch the exception register, so
+	 * reload the hardware state.
+	 */
+	if (!err) {
+		preempt_disable();
+		fpsimd_load_state(&fpsimd);
+		preempt_enable();
+	}
+
+	return err ? -EFAULT : 0;
+}
+
+/*
+ * atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int compat_sys_sigsuspend(int restart, compat_ulong_t oldmask,
+				     compat_old_sigset_t mask)
+{
+	sigset_t blocked;
+
+	siginitset(&current->blocked, mask);
+	return sigsuspend(&blocked);
+}
+
+asmlinkage int compat_sys_sigaction(int sig,
+				    const struct compat_old_sigaction __user *act,
+				    struct compat_old_sigaction __user *oact)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+	compat_old_sigset_t mask;
+	compat_uptr_t handler, restorer;
+
+	if (act) {
+		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+		    __get_user(handler, &act->sa_handler) ||
+		    __get_user(restorer, &act->sa_restorer) ||
+		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+		    __get_user(mask, &act->sa_mask))
+			return -EFAULT;
+
+		new_ka.sa.sa_handler = compat_ptr(handler);
+		new_ka.sa.sa_restorer = compat_ptr(restorer);
+		siginitset(&new_ka.sa.sa_mask, mask);
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+	if (!ret && oact) {
+		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_handler),
+			       &oact->sa_handler) ||
+		    __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
+			       &oact->sa_restorer) ||
+		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
+			return -EFAULT;
+	}
+
+	return ret;
+}
+
+asmlinkage int compat_sys_rt_sigaction(int sig,
+				       const struct compat_sigaction __user *act,
+				       struct compat_sigaction __user *oact,
+				       compat_size_t sigsetsize)
+{
+	struct k_sigaction new_ka, old_ka;
+	int ret;
+
+	/* XXX: Don't preclude handling different sized sigset_t's.  */
+	if (sigsetsize != sizeof(compat_sigset_t))
+		return -EINVAL;
+
+	if (act) {
+		compat_uptr_t handler, restorer;
+
+		ret = get_user(handler, &act->sa_handler);
+		new_ka.sa.sa_handler = compat_ptr(handler);
+		ret |= get_user(restorer, &act->sa_restorer);
+		new_ka.sa.sa_restorer = compat_ptr(restorer);
+		ret |= get_sigset_t(&new_ka.sa.sa_mask, &act->sa_mask);
+		ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+		if (ret)
+			return -EFAULT;
+	}
+
+	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+	if (!ret && oact) {
+		ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+		ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
+		ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+	}
+	return ret;
+}
+
+int compat_do_sigaltstack(compat_uptr_t compat_uss, compat_uptr_t compat_uoss,
+			  compat_ulong_t sp)
+{
+	compat_stack_t __user *newstack = compat_ptr(compat_uss);
+	compat_stack_t __user *oldstack = compat_ptr(compat_uoss);
+	compat_uptr_t ss_sp;
+	int ret;
+	mm_segment_t old_fs;
+	stack_t uss, uoss;
+
+	/* Marshall the compat new stack into a stack_t */
+	if (newstack) {
+		if (get_user(ss_sp, &newstack->ss_sp) ||
+		    __get_user(uss.ss_flags, &newstack->ss_flags) ||
+		    __get_user(uss.ss_size, &newstack->ss_size))
+			return -EFAULT;
+		uss.ss_sp = compat_ptr(ss_sp);
+	}
+
+	old_fs = get_fs();
+	set_fs(KERNEL_DS);
+	/* The __user pointer casts are valid because of the set_fs() */
+	ret = do_sigaltstack(
+		newstack ? (stack_t __user *) &uss : NULL,
+		oldstack ? (stack_t __user *) &uoss : NULL,
+		(unsigned long)sp);
+	set_fs(old_fs);
+
+	/* Convert the old stack_t into a compat stack. */
+	if (!ret && oldstack &&
+		(put_user(ptr_to_compat(uoss.ss_sp), &oldstack->ss_sp) ||
+		 __put_user(uoss.ss_flags, &oldstack->ss_flags) ||
+		 __put_user(uoss.ss_size, &oldstack->ss_size)))
+		return -EFAULT;
+	return ret;
+}
+
+static int compat_restore_sigframe(struct pt_regs *regs,
+				   struct compat_sigframe __user *sf)
+{
+	int err;
+	sigset_t set;
+	struct compat_aux_sigframe __user *aux;
+
+	err = get_sigset_t(&set, &sf->uc.uc_sigmask);
+	if (err == 0) {
+		sigdelsetmask(&set, ~_BLOCKABLE);
+		set_current_blocked(&set);
+	}
+
+	__get_user_error(regs->regs[0], &sf->uc.uc_mcontext.arm_r0, err);
+	__get_user_error(regs->regs[1], &sf->uc.uc_mcontext.arm_r1, err);
+	__get_user_error(regs->regs[2], &sf->uc.uc_mcontext.arm_r2, err);
+	__get_user_error(regs->regs[3], &sf->uc.uc_mcontext.arm_r3, err);
+	__get_user_error(regs->regs[4], &sf->uc.uc_mcontext.arm_r4, err);
+	__get_user_error(regs->regs[5], &sf->uc.uc_mcontext.arm_r5, err);
+	__get_user_error(regs->regs[6], &sf->uc.uc_mcontext.arm_r6, err);
+	__get_user_error(regs->regs[7], &sf->uc.uc_mcontext.arm_r7, err);
+	__get_user_error(regs->regs[8], &sf->uc.uc_mcontext.arm_r8, err);
+	__get_user_error(regs->regs[9], &sf->uc.uc_mcontext.arm_r9, err);
+	__get_user_error(regs->regs[10], &sf->uc.uc_mcontext.arm_r10, err);
+	__get_user_error(regs->regs[11], &sf->uc.uc_mcontext.arm_fp, err);
+	__get_user_error(regs->regs[12], &sf->uc.uc_mcontext.arm_ip, err);
+	__get_user_error(regs->compat_sp, &sf->uc.uc_mcontext.arm_sp, err);
+	__get_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);
+	__get_user_error(regs->pc, &sf->uc.uc_mcontext.arm_pc, err);
+	__get_user_error(regs->pstate, &sf->uc.uc_mcontext.arm_cpsr, err);
+
+	/*
+	 * Avoid compat_sys_sigreturn() restarting.
+	 */
+	regs->syscallno = ~0UL;
+
+	err |= !valid_user_regs(&regs->user_regs);
+
+	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
+	if (err == 0)
+		err |= compat_restore_vfp_context(&aux->vfp);
+
+	return err;
+}
+
+asmlinkage int compat_sys_sigreturn(struct pt_regs *regs)
+{
+	struct compat_sigframe __user *frame;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	/*
+	 * Since we stacked the signal on a 64-bit boundary,
+	 * then 'sp' should be word aligned here.  If it's
+	 * not, then the user is trying to mess with us.
+	 */
+	if (regs->compat_sp & 7)
+		goto badframe;
+
+	frame = (struct compat_sigframe __user *)regs->compat_sp;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
+		goto badframe;
+
+	if (compat_restore_sigframe(regs, frame))
+		goto badframe;
+
+	return regs->regs[0];
+
+badframe:
+	if (show_unhandled_signals)
+		printk_ratelimited(KERN_INFO "%s[%d]: bad frame in %s: pc=%08llx sp=%08llx\n",
+				   current->comm, task_pid_nr(current), __func__,
+				   regs->pc, regs->sp);
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+asmlinkage int compat_sys_rt_sigreturn(struct pt_regs *regs)
+{
+	struct compat_rt_sigframe __user *frame;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	/*
+	 * Since we stacked the signal on a 64-bit boundary,
+	 * then 'sp' should be word aligned here.  If it's
+	 * not, then the user is trying to mess with us.
+	 */
+	if (regs->compat_sp & 7)
+		goto badframe;
+
+	frame = (struct compat_rt_sigframe __user *)regs->compat_sp;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
+		goto badframe;
+
+	if (compat_restore_sigframe(regs, &frame->sig))
+		goto badframe;
+
+	if (compat_do_sigaltstack(ptr_to_compat(&frame->sig.uc.uc_stack),
+				 ptr_to_compat((void __user *)NULL),
+				 regs->compat_sp) == -EFAULT)
+		goto badframe;
+
+	return regs->regs[0];
+
+badframe:
+	if (show_unhandled_signals)
+		printk_ratelimited(KERN_INFO "%s[%d]: bad frame in %s: pc=%08llx sp=%08llx\n",
+				   current->comm, task_pid_nr(current), __func__,
+				   regs->pc, regs->sp);
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
+					       struct pt_regs *regs,
+					       int framesize)
+{
+	compat_ulong_t sp = regs->compat_sp;
+	void __user *frame;
+
+	/*
+	 * This is the X/Open sanctioned signal stack switching.
+	 */
+	if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp))
+		sp = current->sas_ss_sp + current->sas_ss_size;
+
+	/*
+	 * ATPCS B01 mandates 8-byte alignment
+	 */
+	frame = compat_ptr((compat_uptr_t)((sp - framesize) & ~7));
+
+	/*
+	 * Check that we can actually write to the signal frame.
+	 */
+	if (!access_ok(VERIFY_WRITE, frame, framesize))
+		frame = NULL;
+
+	return frame;
+}
+
+static int compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
+			       compat_ulong_t __user *rc, void __user *frame,
+			       int usig)
+{
+	compat_ulong_t handler = ptr_to_compat(ka->sa.sa_handler);
+	compat_ulong_t retcode;
+	compat_ulong_t spsr = regs->pstate & ~PSR_f;
+	int thumb;
+
+	/* Check if the handler is written for ARM or Thumb */
+	thumb = handler & 1;
+
+	if (thumb) {
+		spsr |= COMPAT_PSR_T_BIT;
+		spsr &= ~COMPAT_PSR_IT_MASK;
+	} else {
+		spsr &= ~COMPAT_PSR_T_BIT;
+	}
+
+	if (ka->sa.sa_flags & SA_RESTORER) {
+		retcode = ptr_to_compat(ka->sa.sa_restorer);
+	} else {
+		/* Set up sigreturn pointer */
+		unsigned int idx = thumb << 1;
+
+		if (ka->sa.sa_flags & SA_SIGINFO)
+			idx += 3;
+
+		retcode = AARCH32_VECTORS_BASE +
+			  AARCH32_KERN_SIGRET_CODE_OFFSET +
+			  (idx << 2) + thumb;
+	}
+
+	regs->regs[0]	= usig;
+	regs->compat_sp	= ptr_to_compat(frame);
+	regs->compat_lr	= retcode;
+	regs->pc	= handler;
+	regs->pstate	= spsr;
+
+	return 0;
+}
+
+static int compat_setup_sigframe(struct compat_sigframe __user *sf,
+				 struct pt_regs *regs, sigset_t *set)
+{
+	struct compat_aux_sigframe __user *aux;
+	int err = 0;
+
+	__put_user_error(regs->regs[0], &sf->uc.uc_mcontext.arm_r0, err);
+	__put_user_error(regs->regs[1], &sf->uc.uc_mcontext.arm_r1, err);
+	__put_user_error(regs->regs[2], &sf->uc.uc_mcontext.arm_r2, err);
+	__put_user_error(regs->regs[3], &sf->uc.uc_mcontext.arm_r3, err);
+	__put_user_error(regs->regs[4], &sf->uc.uc_mcontext.arm_r4, err);
+	__put_user_error(regs->regs[5], &sf->uc.uc_mcontext.arm_r5, err);
+	__put_user_error(regs->regs[6], &sf->uc.uc_mcontext.arm_r6, err);
+	__put_user_error(regs->regs[7], &sf->uc.uc_mcontext.arm_r7, err);
+	__put_user_error(regs->regs[8], &sf->uc.uc_mcontext.arm_r8, err);
+	__put_user_error(regs->regs[9], &sf->uc.uc_mcontext.arm_r9, err);
+	__put_user_error(regs->regs[10], &sf->uc.uc_mcontext.arm_r10, err);
+	__put_user_error(regs->regs[11], &sf->uc.uc_mcontext.arm_fp, err);
+	__put_user_error(regs->regs[12], &sf->uc.uc_mcontext.arm_ip, err);
+	__put_user_error(regs->compat_sp, &sf->uc.uc_mcontext.arm_sp, err);
+	__put_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);
+	__put_user_error(regs->pc, &sf->uc.uc_mcontext.arm_pc, err);
+	__put_user_error(regs->pstate, &sf->uc.uc_mcontext.arm_cpsr, err);
+
+	__put_user_error((compat_ulong_t)0, &sf->uc.uc_mcontext.trap_no, err);
+	__put_user_error((compat_ulong_t)0, &sf->uc.uc_mcontext.error_code, err);
+	__put_user_error(current->thread.fault_address, &sf->uc.uc_mcontext.fault_address, err);
+	__put_user_error(set->sig[0], &sf->uc.uc_mcontext.oldmask, err);
+
+	err |= put_sigset_t(&sf->uc.uc_sigmask, set);
+
+	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
+
+	if (err == 0)
+		err |= compat_preserve_vfp_context(&aux->vfp);
+	__put_user_error(0, &aux->end_magic, err);
+
+	return err;
+}
+
+/*
+ * 32-bit signal handling routines called from signal.c
+ */
+int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
+			  sigset_t *set, struct pt_regs *regs)
+{
+	struct compat_rt_sigframe __user *frame;
+	compat_stack_t stack;
+	int err = 0;
+
+	frame = compat_get_sigframe(ka, regs, sizeof(*frame));
+
+	if (!frame)
+		return 1;
+
+	err |= copy_siginfo_to_user32(&frame->info, info);
+
+	__put_user_error(0, &frame->sig.uc.uc_flags, err);
+	__put_user_error(NULL, &frame->sig.uc.uc_link, err);
+
+	memset(&stack, 0, sizeof(stack));
+	stack.ss_sp = (compat_uptr_t)current->sas_ss_sp;
+	stack.ss_flags = sas_ss_flags(regs->compat_sp);
+	stack.ss_size = current->sas_ss_size;
+	err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
+
+	err |= compat_setup_sigframe(&frame->sig, regs, set);
+	if (err == 0)
+		err = compat_setup_return(regs, ka, frame->sig.retcode, frame,
+					  usig);
+
+	if (err == 0) {
+		regs->regs[1] = (compat_ulong_t)(unsigned long)&frame->info;
+		regs->regs[2] = (compat_ulong_t)(unsigned long)&frame->sig.uc;
+	}
+
+	return err;
+}
+
+int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
+		       struct pt_regs *regs)
+{
+	struct compat_sigframe __user *frame;
+	int err = 0;
+
+	frame = compat_get_sigframe(ka, regs, sizeof(*frame));
+
+	if (!frame)
+		return 1;
+
+	__put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err);
+
+	err |= compat_setup_sigframe(frame, regs, set);
+	if (err == 0)
+		err = compat_setup_return(regs, ka, frame->retcode, frame, usig);
+
+	return err;
+}
+
+/*
+ * RT signals don't have generic compat wrappers.
+ * See arch/powerpc/kernel/signal_32.c
+ */
+asmlinkage int compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
+					 compat_sigset_t __user *oset,
+					 compat_size_t sigsetsize)
+{
+	sigset_t s;
+	sigset_t __user *up;
+	int ret;
+	mm_segment_t old_fs = get_fs();
+
+	if (set) {
+		if (get_sigset_t(&s, set))
+			return -EFAULT;
+	}
+
+	set_fs(KERNEL_DS);
+	/* This is valid because of the set_fs() */
+	up = (sigset_t __user *) &s;
+	ret = sys_rt_sigprocmask(how, set ? up : NULL, oset ? up : NULL,
+				 sigsetsize);
+	set_fs(old_fs);
+	if (ret)
+		return ret;
+	if (oset) {
+		if (put_sigset_t(oset, &s))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+asmlinkage int compat_sys_rt_sigpending(compat_sigset_t __user *set,
+					compat_size_t sigsetsize)
+{
+	sigset_t s;
+	int ret;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(KERNEL_DS);
+	/* The __user pointer cast is valid because of the set_fs() */
+	ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
+	set_fs(old_fs);
+	if (!ret) {
+		if (put_sigset_t(set, &s))
+			return -EFAULT;
+	}
+	return ret;
+}
+
+asmlinkage int compat_sys_rt_sigqueueinfo(int pid, int sig,
+					  compat_siginfo_t __user *uinfo)
+{
+	siginfo_t info;
+	int ret;
+	mm_segment_t old_fs = get_fs();
+
+	ret = copy_siginfo_from_user32(&info, uinfo);
+	if (unlikely(ret))
+		return ret;
+
+	set_fs (KERNEL_DS);
+	/* The __user pointer cast is valid because of the set_fs() */
+	ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
+	set_fs (old_fs);
+	return ret;
+}
+
+void compat_setup_restart_syscall(struct pt_regs *regs)
+{
+       regs->regs[7] = __NR_restart_syscall;
+}
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
new file mode 100644
index 0000000..fc764c1
--- /dev/null
+++ b/arch/arm64/kernel/sys32.S
@@ -0,0 +1,283 @@
+/*
+ * Compat system call wrappers
+ *
+ * Copyright (C) 2012 ARM Ltd.
+ * Authors: Will Deacon <will.deacon@arm.com>
+ *	    Catalin Marinas <catalin.marinas@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+#include <asm/asm-offsets.h>
+
+/*
+ * System call wrappers for the AArch32 compatibility layer.
+ */
+compat_sys_fork_wrapper:
+	mov	x0, sp
+	b	compat_sys_fork
+ENDPROC(compat_sys_fork_wrapper)
+
+compat_sys_vfork_wrapper:
+	mov	x0, sp
+	b	compat_sys_vfork
+ENDPROC(compat_sys_vfork_wrapper)
+
+compat_sys_execve_wrapper:
+	mov	x3, sp
+	b	compat_sys_execve
+ENDPROC(compat_sys_execve_wrapper)
+
+compat_sys_clone_wrapper:
+	mov	x5, sp
+	b	compat_sys_clone
+ENDPROC(compat_sys_clone_wrapper)
+
+compat_sys_sigreturn_wrapper:
+	mov	x0, sp
+	mov	x27, #0		// prevent syscall restart handling (why)
+	b	compat_sys_sigreturn
+ENDPROC(compat_sys_sigreturn_wrapper)
+
+compat_sys_rt_sigreturn_wrapper:
+	mov	x0, sp
+	mov	x27, #0		// prevent syscall restart handling (why)
+	b	compat_sys_rt_sigreturn
+ENDPROC(compat_sys_rt_sigreturn_wrapper)
+
+compat_sys_sigaltstack_wrapper:
+	ldr	x2, [sp, #S_COMPAT_SP]
+	b	compat_do_sigaltstack
+ENDPROC(compat_sys_sigaltstack_wrapper)
+
+compat_sys_statfs64_wrapper:
+	mov	w3, #84
+	cmp	w1, #88
+	csel	w1, w3, w1, eq
+	b	compat_sys_statfs64
+ENDPROC(compat_sys_statfs64_wrapper)
+
+compat_sys_fstatfs64_wrapper:
+	mov	w3, #84
+	cmp	w1, #88
+	csel	w1, w3, w1, eq
+	b	compat_sys_fstatfs64
+ENDPROC(compat_sys_fstatfs64_wrapper)
+
+/*
+ * Wrappers for AArch32 syscalls that either take 64-bit parameters
+ * in registers or that take 32-bit parameters which require sign
+ * extension.
+ */
+compat_sys_lseek_wrapper:
+	sxtw	x1, w1
+	b	sys_lseek
+ENDPROC(compat_sys_lseek_wrapper)
+
+compat_sys_pread64_wrapper:
+	orr	x3, x4, x5, lsl #32
+	b	sys_pread64
+ENDPROC(compat_sys_pread64_wrapper)
+
+compat_sys_pwrite64_wrapper:
+	orr	x3, x4, x5, lsl #32
+	b	sys_pwrite64
+ENDPROC(compat_sys_pwrite64_wrapper)
+
+compat_sys_truncate64_wrapper:
+	orr	x1, x2, x3, lsl #32
+	b	sys_truncate
+ENDPROC(compat_sys_truncate64_wrapper)
+
+compat_sys_ftruncate64_wrapper:
+	orr	x1, x2, x3, lsl #32
+	b	sys_ftruncate
+ENDPROC(compat_sys_ftruncate64_wrapper)
+
+compat_sys_readahead_wrapper:
+	orr	x1, x2, x3, lsl #32
+	mov	w2, w4
+	b	sys_readahead
+ENDPROC(compat_sys_readahead_wrapper)
+
+compat_sys_lookup_dcookie:
+	orr	x0, x0, x1, lsl #32
+	mov	w1, w2
+	mov	w2, w3
+	b	sys_lookup_dcookie
+ENDPROC(compat_sys_lookup_dcookie)
+
+compat_sys_fadvise64_64_wrapper:
+	mov	w6, w1
+	orr	x1, x2, x3, lsl #32
+	orr	x2, x4, x5, lsl #32
+	mov	w3, w6
+	b	sys_fadvise64_64
+ENDPROC(compat_sys_fadvise64_64_wrapper)
+
+compat_sys_sync_file_range2_wrapper:
+	orr	x2, x2, x3, lsl #32
+	orr	x3, x4, x5, lsl #32
+	b	sys_sync_file_range2
+ENDPROC(compat_sys_sync_file_range2_wrapper)
+
+compat_sys_fallocate_wrapper:
+	orr	x2, x2, x3, lsl #32
+	orr	x3, x4, x5, lsl #32
+	b	sys_fallocate
+ENDPROC(compat_sys_fallocate_wrapper)
+
+compat_sys_fanotify_mark_wrapper:
+	orr	x2, x2, x3, lsl #32
+	mov	w3, w4
+	mov	w4, w5
+	b	sys_fanotify_mark
+ENDPROC(compat_sys_fanotify_mark_wrapper)
+
+/*
+ * Use the compat system call wrappers.
+ */
+#define sys_fork		compat_sys_fork_wrapper
+#define sys_open		compat_sys_open
+#define sys_execve		compat_sys_execve_wrapper
+#define sys_lseek		compat_sys_lseek_wrapper
+#define sys_mount		compat_sys_mount
+#define sys_ptrace		compat_sys_ptrace
+#define sys_times		compat_sys_times
+#define sys_ioctl		compat_sys_ioctl
+#define sys_fcntl		compat_sys_fcntl
+#define sys_ustat		compat_sys_ustat
+#define sys_sigaction		compat_sys_sigaction
+#define sys_sigsuspend		compat_sys_sigsuspend
+#define sys_sigpending		compat_sys_sigpending
+#define sys_setrlimit		compat_sys_setrlimit
+#define sys_getrusage		compat_sys_getrusage
+#define sys_gettimeofday	compat_sys_gettimeofday
+#define sys_settimeofday	compat_sys_settimeofday
+#define sys_statfs		compat_sys_statfs
+#define sys_fstatfs		compat_sys_fstatfs
+#define sys_setitimer		compat_sys_setitimer
+#define sys_getitimer		compat_sys_getitimer
+#define sys_newstat		compat_sys_newstat
+#define sys_newlstat		compat_sys_newlstat
+#define sys_newfstat		compat_sys_newfstat
+#define sys_wait4		compat_sys_wait4
+#define sys_sysinfo		compat_sys_sysinfo
+#define sys_sigreturn		compat_sys_sigreturn_wrapper
+#define sys_clone		compat_sys_clone_wrapper
+#define sys_adjtimex		compat_sys_adjtimex
+#define sys_sigprocmask		compat_sys_sigprocmask
+#define sys_personality		compat_sys_personality
+#define sys_getdents		compat_sys_getdents
+#define sys_select		compat_sys_select
+#define sys_readv		compat_sys_readv
+#define sys_writev		compat_sys_writev
+#define sys_sysctl		compat_sys_sysctl
+#define sys_sched_rr_get_interval compat_sys_sched_rr_get_interval
+#define sys_nanosleep		compat_sys_nanosleep
+#define sys_rt_sigreturn	compat_sys_rt_sigreturn_wrapper
+#define sys_rt_sigaction	compat_sys_rt_sigaction
+#define sys_rt_sigprocmask	compat_sys_rt_sigprocmask
+#define sys_rt_sigpending	compat_sys_rt_sigpending
+#define sys_rt_sigtimedwait	compat_sys_rt_sigtimedwait
+#define sys_rt_sigqueueinfo	compat_sys_rt_sigqueueinfo
+#define sys_rt_sigsuspend	compat_sys_rt_sigsuspend
+#define sys_pread64		compat_sys_pread64_wrapper
+#define sys_pwrite64		compat_sys_pwrite64_wrapper
+#define sys_sigaltstack		compat_sys_sigaltstack_wrapper
+#define sys_sendfile		compat_sys_sendfile
+#define sys_vfork		compat_sys_vfork_wrapper
+#define sys_getrlimit		compat_sys_getrlimit
+#define sys_mmap2		sys_mmap_pgoff
+#define sys_truncate64		compat_sys_truncate64_wrapper
+#define sys_ftruncate64		compat_sys_ftruncate64_wrapper
+#define sys_getdents64		compat_sys_getdents64
+#define sys_fcntl64		compat_sys_fcntl64
+#define sys_readahead		compat_sys_readahead_wrapper
+#define sys_futex		compat_sys_futex
+#define sys_sched_setaffinity	compat_sys_sched_setaffinity
+#define sys_sched_getaffinity	compat_sys_sched_getaffinity
+#define sys_io_setup		compat_sys_io_setup
+#define sys_io_getevents	compat_sys_io_getevents
+#define sys_io_submit		compat_sys_io_submit
+#define sys_lookup_dcookie	compat_sys_lookup_dcookie
+#define sys_timer_create	compat_sys_timer_create
+#define sys_timer_settime	compat_sys_timer_settime
+#define sys_timer_gettime	compat_sys_timer_gettime
+#define sys_clock_settime	compat_sys_clock_settime
+#define sys_clock_gettime	compat_sys_clock_gettime
+#define sys_clock_getres	compat_sys_clock_getres
+#define sys_clock_nanosleep	compat_sys_clock_nanosleep
+#define sys_statfs64		compat_sys_statfs64_wrapper
+#define sys_fstatfs64		compat_sys_fstatfs64_wrapper
+#define sys_utimes		compat_sys_utimes
+#define sys_fadvise64_64	compat_sys_fadvise64_64_wrapper
+#define sys_mq_open		compat_sys_mq_open
+#define sys_mq_timedsend	compat_sys_mq_timedsend
+#define sys_mq_timedreceive	compat_sys_mq_timedreceive
+#define sys_mq_notify		compat_sys_mq_notify
+#define sys_mq_getsetattr	compat_sys_mq_getsetattr
+#define sys_waitid		compat_sys_waitid
+#define sys_recv		compat_sys_recv
+#define sys_recvfrom		compat_sys_recvfrom
+#define sys_setsockopt		compat_sys_setsockopt
+#define sys_getsockopt		compat_sys_getsockopt
+#define sys_sendmsg		compat_sys_sendmsg
+#define sys_recvmsg		compat_sys_recvmsg
+#define sys_semctl		compat_sys_semctl
+#define sys_msgsnd		compat_sys_msgsnd
+#define sys_msgrcv		compat_sys_msgrcv
+#define sys_msgctl		compat_sys_msgctl
+#define sys_shmat		compat_sys_shmat
+#define sys_shmctl		compat_sys_shmctl
+#define sys_keyctl		compat_sys_keyctl
+#define sys_semtimedop		compat_sys_semtimedop
+#define sys_mbind		compat_sys_mbind
+#define sys_get_mempolicy	compat_sys_get_mempolicy
+#define sys_set_mempolicy	compat_sys_set_mempolicy
+#define sys_openat		compat_sys_openat
+#define sys_futimesat		compat_sys_futimesat
+#define sys_pselect6		compat_sys_pselect6
+#define sys_ppoll		compat_sys_ppoll
+#define sys_set_robust_list	compat_sys_set_robust_list
+#define sys_get_robust_list	compat_sys_get_robust_list
+#define sys_sync_file_range2	compat_sys_sync_file_range2_wrapper
+#define sys_vmsplice		compat_sys_vmsplice
+#define sys_move_pages		compat_sys_move_pages
+#define sys_epoll_pwait		compat_sys_epoll_pwait
+#define sys_kexec_load		compat_sys_kexec_load
+#define sys_utimensat		compat_sys_utimensat
+#define sys_signalfd		compat_sys_signalfd
+#define sys_fallocate		compat_sys_fallocate_wrapper
+#define sys_timerfd_settime	compat_sys_timerfd_settime
+#define sys_timerfd_gettime	compat_sys_timerfd_gettime
+#define sys_signalfd4		compat_sys_signalfd4
+#define sys_preadv		compat_sys_preadv
+#define sys_pwritev		compat_sys_pwritev
+#define sys_rt_tgsigqueueinfo	compat_sys_rt_tgsigqueueinfo
+#define sys_recvmmsg		compat_sys_recvmmsg
+#define sys_fanotify_mark	compat_sys_fanotify_mark_wrapper
+
+#undef __SYSCALL
+#define __SYSCALL(x, y)		.quad	y	// x
+#define __SYSCALL_COMPAT
+
+/*
+ * The system calls table must be 4KB aligned.
+ */
+	.align	12
+ENTRY(compat_sys_call_table)
+#include <asm/unistd.h>
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c
new file mode 100644
index 0000000..025ec0a
--- /dev/null
+++ b/arch/arm64/kernel/sys_compat.c
@@ -0,0 +1,177 @@
+/*
+ * Based on arch/arm/kernel/sys_arm.c
+ *
+ * Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c
+ * Copyright (C) 1995, 1996 Russell King.
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define __SYSCALL_COMPAT
+
+#include <linux/compat.h>
+#include <linux/personality.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+
+#include <asm/cacheflush.h>
+#include <asm/unistd.h>
+
+asmlinkage int compat_sys_fork(struct pt_regs *regs)
+{
+	return do_fork(SIGCHLD, regs->compat_sp, regs, 0, NULL, NULL);
+}
+
+asmlinkage int compat_sys_clone(unsigned long clone_flags, unsigned long newsp,
+			  int __user *parent_tidptr, int tls_val,
+			  int __user *child_tidptr, struct pt_regs *regs)
+{
+	if (!newsp)
+		newsp = regs->compat_sp;
+
+	return do_fork(clone_flags, newsp, regs, 0, parent_tidptr, child_tidptr);
+}
+
+asmlinkage int compat_sys_vfork(struct pt_regs *regs)
+{
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->compat_sp,
+		       regs, 0, NULL, NULL);
+}
+
+asmlinkage int compat_sys_execve(const char __user *filenamei,
+				 compat_uptr_t argv, compat_uptr_t envp,
+				 struct pt_regs *regs)
+{
+	int error;
+	char * filename;
+
+	filename = getname(filenamei);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+	error = compat_do_execve(filename, compat_ptr(argv), compat_ptr(envp),
+				 regs);
+	putname(filename);
+out:
+	return error;
+}
+
+asmlinkage int compat_sys_sched_rr_get_interval(compat_pid_t pid,
+						struct compat_timespec __user *interval)
+{
+	struct timespec t;
+	int ret;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(KERNEL_DS);
+	ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
+	set_fs(old_fs);
+	if (put_compat_timespec(&t, interval))
+		return -EFAULT;
+	return ret;
+}
+
+asmlinkage int compat_sys_personality(compat_ulong_t personality)
+{
+	int ret;
+
+	if (personality(current->personality) == PER_LINUX32 &&
+		personality == PER_LINUX)
+		personality = PER_LINUX32;
+	ret = sys_personality(personality);
+	if (ret == PER_LINUX32)
+		ret = PER_LINUX;
+	return ret;
+}
+
+asmlinkage int compat_sys_sendfile(int out_fd, int in_fd,
+				   compat_off_t __user *offset, s32 count)
+{
+	mm_segment_t old_fs = get_fs();
+	int ret;
+	off_t of;
+
+	if (offset && get_user(of, offset))
+		return -EFAULT;
+
+	set_fs(KERNEL_DS);
+	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
+			   count);
+	set_fs(old_fs);
+
+	if (offset && put_user(of, offset))
+		return -EFAULT;
+	return ret;
+}
+
+static inline void
+do_compat_cache_op(unsigned long start, unsigned long end, int flags)
+{
+	struct mm_struct *mm = current->active_mm;
+	struct vm_area_struct *vma;
+
+	if (end < start || flags)
+		return;
+
+	down_read(&mm->mmap_sem);
+	vma = find_vma(mm, start);
+	if (vma && vma->vm_start < end) {
+		if (start < vma->vm_start)
+			start = vma->vm_start;
+		if (end > vma->vm_end)
+			end = vma->vm_end;
+		up_read(&mm->mmap_sem);
+		flush_cache_user_range(start, end);
+		return;
+	}
+	up_read(&mm->mmap_sem);
+}
+
+/*
+ * Handle all unrecognised system calls.
+ */
+long compat_arm_syscall(struct pt_regs *regs)
+{
+	unsigned int no = regs->regs[7];
+
+	switch (no) {
+	/*
+	 * Flush a region from virtual address 'r0' to virtual address 'r1'
+	 * _exclusive_.  There is no alignment requirement on either address;
+	 * user space does not need to know the hardware cache layout.
+	 *
+	 * r2 contains flags.  It should ALWAYS be passed as ZERO until it
+	 * is defined to be something else.  For now we ignore it, but may
+	 * the fires of hell burn in your belly if you break this rule. ;)
+	 *
+	 * (at a later date, we may want to allow this call to not flush
+	 * various aspects of the cache.  Passing '0' will guarantee that
+	 * everything necessary gets flushed to maintain consistency in
+	 * the specified region).
+	 */
+	case __ARM_NR_compat_cacheflush:
+		do_compat_cache_op(regs->regs[0], regs->regs[1], regs->regs[2]);
+		return 0;
+
+	case __ARM_NR_compat_set_tls:
+		current->thread.tp_value = regs->regs[0];
+		asm ("msr tpidrro_el0, %0" : : "r" (regs->regs[0]));
+		return 0;
+
+	default:
+		return -ENOSYS;
+	}
+}
