arch/mn10300/include/asm/ptrace.h

   1 /* MN10300 Exception frame layout and ptrace constants
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_PTRACE_H
  12 #define _ASM_PTRACE_H
  13
  14 #define PT_A3           0
  15 #define PT_A2           1
  16 #define PT_D3           2
  17 #define PT_D2           3
  18 #define PT_MCVF         4
  19 #define PT_MCRL         5
  20 #define PT_MCRH         6
  21 #define PT_MDRQ         7
  22 #define PT_E1           8
  23 #define PT_E0           9
  24 #define PT_E7           10
  25 #define PT_E6           11
  26 #define PT_E5           12
  27 #define PT_E4           13
  28 #define PT_E3           14
  29 #define PT_E2           15
  30 #define PT_SP           16
  31 #define PT_LAR          17
  32 #define PT_LIR          18
  33 #define PT_MDR          19
  34 #define PT_A1           20
  35 #define PT_A0           21
  36 #define PT_D1           22
  37 #define PT_D0           23
  38 #define PT_ORIG_D0      24
  39 #define PT_EPSW         25
  40 #define PT_PC           26
  41 #define NR_PTREGS       27
  42
  43 #ifndef __ASSEMBLY__
  44 /*
  45  * This defines the way registers are stored in the event of an exception
  46  * - the strange order is due to the MOVM instruction
  47  */
  48 struct pt_regs {
  49         unsigned long           a3;             /* syscall arg 3 */
  50         unsigned long           a2;             /* syscall arg 4 */
  51         unsigned long           d3;             /* syscall arg 5 */
  52         unsigned long           d2;             /* syscall arg 6 */
  53         unsigned long           mcvf;
  54         unsigned long           mcrl;
  55         unsigned long           mcrh;
  56         unsigned long           mdrq;
  57         unsigned long           e1;
  58         unsigned long           e0;
  59         unsigned long           e7;
  60         unsigned long           e6;
  61         unsigned long           e5;
  62         unsigned long           e4;
  63         unsigned long           e3;
  64         unsigned long           e2;
  65         unsigned long           sp;
  66         unsigned long           lar;
  67         unsigned long           lir;
  68         unsigned long           mdr;
  69         unsigned long           a1;
  70         unsigned long           a0;             /* syscall arg 1 */
  71         unsigned long           d1;             /* syscall arg 2 */
  72         unsigned long           d0;             /* syscall ret */
  73         struct pt_regs          *next;          /* next frame pointer */
  74         unsigned long           orig_d0;        /* syscall number */
  75         unsigned long           epsw;
  76         unsigned long           pc;
  77 };
  78 #endif
  79
  80 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
  81 #define PTRACE_GETREGS            12
  82 #define PTRACE_SETREGS            13
  83 #define PTRACE_GETFPREGS          14
  84 #define PTRACE_SETFPREGS          15
  85
  86 /* options set using PTRACE_SETOPTIONS */
  87 #define PTRACE_O_TRACESYSGOOD     0x00000001
  88
  89 #if defined(__KERNEL__)
  90
  91 extern struct pt_regs *__frame;         /* current frame pointer */
  92
  93 #if !defined(__ASSEMBLY__)
  94 struct task_struct;
  95
  96 #define user_mode(regs)                 (((regs)->epsw & EPSW_nSL) == EPSW_nSL)
  97 #define instruction_pointer(regs)       ((regs)->pc)
  98 #define user_stack_pointer(regs)        ((regs)->sp)
  99 extern void show_regs(struct pt_regs *);
 100
 101 #define arch_has_single_step()  (1)
 102 extern void user_enable_single_step(struct task_struct *);
 103 extern void user_disable_single_step(struct task_struct *);
 104
 105 #endif  /*  !__ASSEMBLY  */
 106
 107 #define profile_pc(regs) ((regs)->pc)
 108
 109 #endif  /*  __KERNEL__  */
 110 #endif /* _ASM_PTRACE_H */