text: /*
   * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   * Licensed under the GPL
   */
  
  #include <linux/file.h>
  #include <linux/fs.h>
  #include <linux/mm.h>
  #include <linux/sched.h>
  #include <linux/utsname.h>
  #include <linux/syscalls.h>
  #include <asm/current.h>
  #include <asm/mman.h>
  #include <asm/uaccess.h>
  #include <asm/unistd.h>
  
  long sys_fork(void)
  {
  	return do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
  		      &current->thread.regs, 0, NULL, NULL);
  }
  
  long sys_vfork(void)
  {
  	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
  		      UPT_SP(&current->thread.regs.regs),
  		      &current->thread.regs, 0, NULL, NULL);
  }
  
  long sys_clone(unsigned long clone_flags, unsigned long newsp,
  	       void __user *parent_tid, void __user *child_tid)
  {
  	if (!newsp)
  		newsp = UPT_SP(&current->thread.regs.regs);
  
  	return do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
  		      child_tid);
  }
  
  long old_mmap(unsigned long addr, unsigned long len,
  	      unsigned long prot, unsigned long flags,
  	      unsigned long fd, unsigned long offset)
  {
  	long err = -EINVAL;
  	if (offset & ~PAGE_MASK)
  		goto out;
  
  	err = sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
   out:
  	return err;
  }
  