arch/sparc/include/asm/ptrace.h

   1 /* Contain the Stack frame layout on interrupt. pt_regs.
   2  * taken from the SPARC port of Linux (ptrace.h).
   3  *
   4  * (C) Copyright 2007
   5  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  *
  22  */
  23
  24 #ifndef __SPARC_PTRACE_H__
  25 #define __SPARC_PTRACE_H__
  26
  27 #include <asm/psr.h>
  28
  29 /* This struct defines the way the registers are stored on the
  30  * stack during a system call and basically all traps.
  31  */
  32
  33 #ifndef __ASSEMBLY__
  34
  35 struct pt_regs {
  36         unsigned long psr;
  37         unsigned long pc;
  38         unsigned long npc;
  39         unsigned long y;
  40         unsigned long u_regs[16];       /* globals and ins */
  41 };
  42
  43 #define UREG_G0        0
  44 #define UREG_G1        1
  45 #define UREG_G2        2
  46 #define UREG_G3        3
  47 #define UREG_G4        4
  48 #define UREG_G5        5
  49 #define UREG_G6        6
  50 #define UREG_G7        7
  51 #define UREG_I0        8
  52 #define UREG_I1        9
  53 #define UREG_I2        10
  54 #define UREG_I3        11
  55 #define UREG_I4        12
  56 #define UREG_I5        13
  57 #define UREG_I6        14
  58 #define UREG_I7        15
  59 #define UREG_WIM       UREG_G0
  60 #define UREG_FADDR     UREG_G0
  61 #define UREG_FP        UREG_I6
  62 #define UREG_RETPC     UREG_I7
  63
  64 /* A register window */
  65 struct reg_window {
  66         unsigned long locals[8];
  67         unsigned long ins[8];
  68 };
  69
  70 /* A Sparc stack frame */
  71 struct sparc_stackf {
  72         unsigned long locals[8];
  73         unsigned long ins[6];
  74         struct sparc_stackf *fp;
  75         unsigned long callers_pc;
  76         char *structptr;
  77         unsigned long xargs[6];
  78         unsigned long xxargs[1];
  79 };
  80
  81 #define TRACEREG_SZ   sizeof(struct pt_regs)
  82 #define STACKFRAME_SZ sizeof(struct sparc_stackf)
  83
  84 #else                           /* __ASSEMBLY__ */
  85 /* For assembly code. */
  86 #define TRACEREG_SZ       0x50
  87 #define STACKFRAME_SZ     0x60
  88 #endif
  89
  90 /*
  91  * The asm_offsets.h is a generated file, so we cannot include it.
  92  * It may be OK for glibc headers, but it's utterly pointless for C code.
  93  * The assembly code using those offsets has to include it explicitly.
  94  */
  95 /* #include <asm/asm_offsets.h> */
  96
  97 /* These are for pt_regs. */
  98 #define PT_PSR    0x0
  99 #define PT_PC     0x4
 100 #define PT_NPC    0x8
 101 #define PT_Y      0xc
 102 #define PT_G0     0x10
 103 #define PT_WIM    PT_G0
 104 #define PT_G1     0x14
 105 #define PT_G2     0x18
 106 #define PT_G3     0x1c
 107 #define PT_G4     0x20
 108 #define PT_G5     0x24
 109 #define PT_G6     0x28
 110 #define PT_G7     0x2c
 111 #define PT_I0     0x30
 112 #define PT_I1     0x34
 113 #define PT_I2     0x38
 114 #define PT_I3     0x3c
 115 #define PT_I4     0x40
 116 #define PT_I5     0x44
 117 #define PT_I6     0x48
 118 #define PT_FP     PT_I6
 119 #define PT_I7     0x4c
 120
 121 /* Reg_window offsets */
 122 #define RW_L0     0x00
 123 #define RW_L1     0x04
 124 #define RW_L2     0x08
 125 #define RW_L3     0x0c
 126 #define RW_L4     0x10
 127 #define RW_L5     0x14
 128 #define RW_L6     0x18
 129 #define RW_L7     0x1c
 130 #define RW_I0     0x20
 131 #define RW_I1     0x24
 132 #define RW_I2     0x28
 133 #define RW_I3     0x2c
 134 #define RW_I4     0x30
 135 #define RW_I5     0x34
 136 #define RW_I6     0x38
 137 #define RW_I7     0x3c
 138
 139 /* Stack_frame offsets */
 140 #define SF_L0     0x00
 141 #define SF_L1     0x04
 142 #define SF_L2     0x08
 143 #define SF_L3     0x0c
 144 #define SF_L4     0x10
 145 #define SF_L5     0x14
 146 #define SF_L6     0x18
 147 #define SF_L7     0x1c
 148 #define SF_I0     0x20
 149 #define SF_I1     0x24
 150 #define SF_I2     0x28
 151 #define SF_I3     0x2c
 152 #define SF_I4     0x30
 153 #define SF_I5     0x34
 154 #define SF_FP     0x38
 155 #define SF_PC     0x3c
 156 #define SF_RETP   0x40
 157 #define SF_XARG0  0x44
 158 #define SF_XARG1  0x48
 159 #define SF_XARG2  0x4c
 160 #define SF_XARG3  0x50
 161 #define SF_XARG4  0x54
 162 #define SF_XARG5  0x58
 163 #define SF_XXARG  0x5c
 164
 165 /* Stuff for the ptrace system call */
 166 #define PTRACE_SUNATTACH          10
 167 #define PTRACE_SUNDETACH          11
 168 #define PTRACE_GETREGS            12
 169 #define PTRACE_SETREGS            13
 170 #define PTRACE_GETFPREGS          14
 171 #define PTRACE_SETFPREGS          15
 172 #define PTRACE_READDATA           16
 173 #define PTRACE_WRITEDATA          17
 174 #define PTRACE_READTEXT           18
 175 #define PTRACE_WRITETEXT          19
 176 #define PTRACE_GETFPAREGS         20
 177 #define PTRACE_SETFPAREGS         21
 178
 179 #define PTRACE_GETUCODE           29    /* stupid bsd-ism */
 180
 181 #endif                          /* !(_SPARC_PTRACE_H) */