#ifndef __ASM_GENERIC_SYSCALLS_H
  #define __ASM_GENERIC_SYSCALLS_H
  
  #include <linux/compiler.h>
  #include <linux/linkage.h>
  
  /*
   * Calling conventions for these system calls can differ, so
   * it's possible to override them.
   */

  #ifndef sys_mmap2
  asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
  			unsigned long prot, unsigned long flags,
  			unsigned long fd, unsigned long pgoff);
  #endif
  
  #ifndef sys_mmap
  asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
  			unsigned long prot, unsigned long flags,
  			unsigned long fd, off_t pgoff);
  #endif

  #ifndef sys_rt_sigreturn
  asmlinkage long sys_rt_sigreturn(struct pt_regs *regs);
  #endif

  #endif /* __ASM_GENERIC_SYSCALLS_H */