arch/m68k-mac/include/exec/ptrace.h

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifndef ASM_PTRACE_H
   7 #define ASM_PTRACE_H
   8
   9 /*
  10    This struct defines the way the registers are stored on the
  11    stack during a system call.
  12    Now you might think that the order is arbitrary, but in reality it
  13    is not! The highest ones, sr & pc, are from the exception frame and
  14    should also remain like that!
  15 */
  16
  17 struct pt_regs {
  18         long            usp;
  19         long            d0;
  20         long            d1;
  21         long            d2;
  22         long            d3;
  23         long            d4;
  24         long            d5;
  25         long            d6;
  26         long            d7;
  27         long            a0;
  28         long            a1;
  29         long            a2;
  30         long            a3;
  31         long            a4;
  32         long            a5;
  33         long            a6;
  34         unsigned short  sr;
  35         long            pc;
  36 } __attribute__((packed));
  37
  38 #define user_mode(regs) (0 == ((1 << 13) & (regs)->sr))
  39
  40 #endif