LXR uboot/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
  35struct 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 */
  65struct reg_window {
  66        unsigned long locals[8];
  67        unsigned long ins[8];
  68};
  69
  70/* A Sparc stack frame */
  71struct 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) */
 182