/* * AArch64-specific system calls implementation * * Copyright (C) 2012 ARM Ltd. * Author: 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/compiler.h>#include <linux/errno.h>#include <linux/fs.h>#include <linux/mm.h>#include <linux/export.h>#include <linux/sched.h>#include <linux/slab.h>#include <linux/syscalls.h> #include <asm/cpufeature.h>#include <asm/syscall.h> SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,		unsigned long, prot, unsigned long, flags,		unsigned long, fd, off_t, off){	if (offset_in_page(off) != 0)		return -EINVAL; 	return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);} SYSCALL_DEFINE1(arm64_personality, unsigned int, personality){	if (personality(personality) == PER_LINUX32 &&		!system_supports_32bit_el0())		return -EINVAL;	return ksys_personality(personality);} /* * Wrappers to pass the pt_regs argument. */#define sys_personality		sys_arm64_personality asmlinkage long sys_ni_syscall(const struct pt_regs *);#define __arm64_sys_ni_syscall	sys_ni_syscall #undef __SYSCALL#define __SYSCALL(nr, sym)	asmlinkage long __arm64_##sym(const struct pt_regs *);#include <asm/unistd.h> #undef __SYSCALL#define __SYSCALL(nr, sym)	[nr] = (syscall_fn_t)__arm64_##sym, const syscall_fn_t sys_call_table[__NR_syscalls] = {	[0 ... __NR_syscalls - 1] = (syscall_fn_t)sys_ni_syscall,#include <asm/unistd.h>};