text: #ifndef NIOS2_TARGET_SYSCALL_H
  #define NIOS2_TARGET_SYSCALL_H
  
  #define UNAME_MACHINE "nios2"
  #define UNAME_MINIMUM_RELEASE "3.19.0"
  
  struct target_pt_regs {
      unsigned long  r8;    /* r8-r15 Caller-saved GP registers */
      unsigned long  r9;
      unsigned long  r10;
      unsigned long  r11;
      unsigned long  r12;
      unsigned long  r13;
      unsigned long  r14;
      unsigned long  r15;
      unsigned long  r1;    /* Assembler temporary */
      unsigned long  r2;    /* Retval LS 32bits */
      unsigned long  r3;    /* Retval MS 32bits */
      unsigned long  r4;    /* r4-r7 Register arguments */
      unsigned long  r5;
      unsigned long  r6;
      unsigned long  r7;
      unsigned long  orig_r2;    /* Copy of r2 ?? */
      unsigned long  ra;    /* Return address */
      unsigned long  fp;    /* Frame pointer */
      unsigned long  sp;    /* Stack pointer */
      unsigned long  gp;    /* Global pointer */
      unsigned long  estatus;
      unsigned long  ea;    /* Exception return address (pc) */
      unsigned long  orig_r7;
  };
  
  #define TARGET_MINSIGSTKSZ 2048
  #define TARGET_MCL_CURRENT 1
  #define TARGET_MCL_FUTURE  2
  #define TARGET_MCL_ONFAULT 4
  
  #endif /* NIOS2_TARGET_SYSCALL_H */
  