/* *  linux/arch/arm/kernel/sys_arm.c * *  Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c *  Copyright (C) 1995, 1996 Russell King. * * 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 file contains various random system calls that *  have a non-standard calling sequence on the Linux/arm *  platform. */#include <linux/export.h>#include <linux/errno.h>#include <linux/sched.h>#include <linux/mm.h>#include <linux/sem.h>#include <linux/msg.h>#include <linux/shm.h>#include <linux/stat.h>#include <linux/syscalls.h>#include <linux/mman.h>#include <linux/fs.h>#include <linux/file.h>#include <linux/ipc.h>#include <linux/uaccess.h>#include <linux/slab.h> /* Fork a new task - this creates a new program thread. * This is called indirectly via a small wrapper */asmlinkage int sys_fork(struct pt_regs *regs){#ifdef CONFIG_MMU	return do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);#else	/* can not support in nommu mode */	return(-EINVAL);#endif} /* Clone a task - this clones the calling program thread. * This is called indirectly via a small wrapper */asmlinkage int 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->ARM_sp; 	return do_fork(clone_flags, newsp, regs, 0, parent_tidptr, child_tidptr);} asmlinkage int sys_vfork(struct pt_regs *regs){	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);} /* * Since loff_t is a 64 bit type we avoid a lot of ABI hassle * with a different argument ordering. */asmlinkage long sys_arm_fadvise64_64(int fd, int advice,				     loff_t offset, loff_t len){	return sys_fadvise64_64(fd, offset, len, advice);}