include/asm-nios2nommu/ptrace.h

   1 /*
   2  * Taken from the m68k port.
   3  *
   4  * Copyright (C) 2004, Microtronix Datacom Ltd.
   5  *
   6  * All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  16  * NON INFRINGEMENT.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  */
  24 #ifndef _NIOS2NOMMU_PTRACE_H
  25 #define _NIOS2NOMMU_PTRACE_H
  26
  27 #ifndef __ASSEMBLY__
  28
  29 #define PTR_R0          0
  30 #define PTR_R1          1
  31 #define PTR_R2          2
  32 #define PTR_R3          3
  33 #define PTR_R4          4
  34 #define PTR_R5          5
  35 #define PTR_R6          6
  36 #define PTR_R7          7
  37 #define PTR_R8          8
  38 #define PTR_R9          9
  39 #define PTR_R10         10
  40 #define PTR_R11         11
  41 #define PTR_R12         12
  42 #define PTR_R13         13
  43 #define PTR_R14         14
  44 #define PTR_R15         15
  45 #define PTR_R16         16
  46 #define PTR_R17         17
  47 #define PTR_R18         18
  48 #define PTR_R19         19
  49 #define PTR_R20         20
  50 #define PTR_R21         21
  51 #define PTR_R22         22
  52 #define PTR_R23         23
  53 #define PTR_R24         24
  54 #define PTR_R25         25
  55 #define PTR_GP          26
  56 #define PTR_SP          27
  57 #define PTR_FP          28
  58 #define PTR_EA          29
  59 #define PTR_BA          30
  60 #define PTR_RA          31
  61 #define PTR_STATUS      32
  62 #define PTR_ESTATUS     33
  63 #define PTR_BSTATUS     34
  64 #define PTR_IENABLE     35
  65 #define PTR_IPENDING    36
  66
  67 /* this struct defines the way the registers are stored on the
  68    stack during a system call.
  69
  70    There is a fake_regs in setup.c that has to match pt_regs.*/
  71
  72 struct pt_regs {
  73         unsigned long  r8;
  74         unsigned long  r9;
  75         unsigned long  r10;
  76         unsigned long  r11;
  77         unsigned long  r12;
  78         unsigned long  r13;
  79         unsigned long  r14;
  80         unsigned long  r15;
  81         unsigned long  r1;
  82         unsigned long  r2;
  83         unsigned long  r3;
  84         unsigned long  r4;
  85         unsigned long  r5;
  86         unsigned long  r6;
  87         unsigned long  r7;
  88         unsigned long  orig_r2;
  89         unsigned long  ra;
  90         unsigned long  fp;
  91         unsigned long  sp;
  92         unsigned long  gp;
  93         unsigned long  estatus;
  94         unsigned long  status_extension;
  95         unsigned long  ea;
  96 };
  97
  98
  99 /*
 100  * This is the extended stack used by signal handlers and the context
 101  * switcher: it's pushed after the normal "struct pt_regs".
 102  */
 103 struct switch_stack {
 104         unsigned long  r16;
 105         unsigned long  r17;
 106         unsigned long  r18;
 107         unsigned long  r19;
 108         unsigned long  r20;
 109         unsigned long  r21;
 110         unsigned long  r22;
 111         unsigned long  r23;
 112         unsigned long  fp;
 113         unsigned long  gp;
 114         unsigned long  ra;
 115 };
 116
 117 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
 118 #define PTRACE_GETREGS            12
 119 #define PTRACE_SETREGS            13
 120 #ifdef CONFIG_FPU
 121 #define PTRACE_GETFPREGS          14
 122 #define PTRACE_SETFPREGS          15
 123 #endif
 124
 125 #ifdef __KERNEL__
 126
 127 #ifndef PS_S
 128 #define PS_S  (0x00000001)
 129 #endif
 130 #ifndef PS_T
 131 #define PS_T  (0x00000002)
 132 #endif
 133
 134 #define user_mode(regs) (!((regs)->status_extension & PS_S))
 135 #define instruction_pointer(regs) ((regs)->ra)
 136 #define profile_pc(regs) instruction_pointer(regs)
 137 extern void show_regs(struct pt_regs *);
 138
 139 #endif /* __KERNEL__ */
 140 #endif /* __ASSEMBLY__ */
 141 #endif /* _NIOS2NOMMU_PTRACE_H */