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 * SPDX-License-Identifier:     GPL-2.0+
   8 */
   9
  10#ifndef __SPARC_PTRACE_H__
  11#define __SPARC_PTRACE_H__
  12
  13#include <asm/psr.h>
  14
  15/* This struct defines the way the registers are stored on the
  16 * stack during a system call and basically all traps.
  17 */
  18
  19#ifndef __ASSEMBLY__
  20
  21struct pt_regs {
  22        unsigned long psr;
  23        unsigned long pc;
  24        unsigned long npc;
  25        unsigned long y;
  26        unsigned long u_regs[16];       /* globals and ins */
  27};
  28
  29#define UREG_G0        0
  30#define UREG_G1        1
  31#define UREG_G2        2
  32#define UREG_G3        3
  33#define UREG_G4        4
  34#define UREG_G5        5
  35#define UREG_G6        6
  36#define UREG_G7        7
  37#define UREG_I0        8
  38#define UREG_I1        9
  39#define UREG_I2        10
  40#define UREG_I3        11
  41#define UREG_I4        12
  42#define UREG_I5        13
  43#define UREG_I6        14
  44#define UREG_I7        15
  45#define UREG_WIM       UREG_G0
  46#define UREG_FADDR     UREG_G0
  47#define UREG_FP        UREG_I6
  48#define UREG_RETPC     UREG_I7
  49
  50/* A register window */
  51struct reg_window {
  52        unsigned long locals[8];
  53        unsigned long ins[8];
  54};
  55
  56/* A Sparc stack frame */
  57struct sparc_stackf {
  58        unsigned long locals[8];
  59        unsigned long ins[6];
  60        struct sparc_stackf *fp;
  61        unsigned long callers_pc;
  62        char *structptr;
  63        unsigned long xargs[6];
  64        unsigned long xxargs[1];
  65};
  66
  67#define TRACEREG_SZ   sizeof(struct pt_regs)
  68#define STACKFRAME_SZ sizeof(struct sparc_stackf)
  69
  70#else                           /* __ASSEMBLY__ */
  71/* For assembly code. */
  72#define TRACEREG_SZ       0x50
  73#define STACKFRAME_SZ     0x60
  74#endif
  75
  76/*
  77 * The asm_offsets.h is a generated file, so we cannot include it.
  78 * It may be OK for glibc headers, but it's utterly pointless for C code.
  79 * The assembly code using those offsets has to include it explicitly.
  80 */
  81/* #include <asm/asm_offsets.h> */
  82
  83/* These are for pt_regs. */
  84#define PT_PSR    0x0
  85#define PT_PC     0x4
  86#define PT_NPC    0x8
  87#define PT_Y      0xc
  88#define PT_G0     0x10
  89#define PT_WIM    PT_G0
  90#define PT_G1     0x14
  91#define PT_G2     0x18
  92#define PT_G3     0x1c
  93#define PT_G4     0x20
  94#define PT_G5     0x24
  95#define PT_G6     0x28
  96#define PT_G7     0x2c
  97#define PT_I0     0x30
  98#define PT_I1     0x34
  99#define PT_I2     0x38
 100#define PT_I3     0x3c
 101#define PT_I4     0x40
 102#define PT_I5     0x44
 103#define PT_I6     0x48
 104#define PT_FP     PT_I6
 105#define PT_I7     0x4c
 106
 107/* Reg_window offsets */
 108#define RW_L0     0x00
 109#define RW_L1     0x04
 110#define RW_L2     0x08
 111#define RW_L3     0x0c
 112#define RW_L4     0x10
 113#define RW_L5     0x14
 114#define RW_L6     0x18
 115#define RW_L7     0x1c
 116#define RW_I0     0x20
 117#define RW_I1     0x24
 118#define RW_I2     0x28
 119#define RW_I3     0x2c
 120#define RW_I4     0x30
 121#define RW_I5     0x34
 122#define RW_I6     0x38
 123#define RW_I7     0x3c
 124
 125/* Stack_frame offsets */
 126#define SF_L0     0x00
 127#define SF_L1     0x04
 128#define SF_L2     0x08
 129#define SF_L3     0x0c
 130#define SF_L4     0x10
 131#define SF_L5     0x14
 132#define SF_L6     0x18
 133#define SF_L7     0x1c
 134#define SF_I0     0x20
 135#define SF_I1     0x24
 136#define SF_I2     0x28
 137#define SF_I3     0x2c
 138#define SF_I4     0x30
 139#define SF_I5     0x34
 140#define SF_FP     0x38
 141#define SF_PC     0x3c
 142#define SF_RETP   0x40
 143#define SF_XARG0  0x44
 144#define SF_XARG1  0x48
 145#define SF_XARG2  0x4c
 146#define SF_XARG3  0x50
 147#define SF_XARG4  0x54
 148#define SF_XARG5  0x58
 149#define SF_XXARG  0x5c
 150
 151/* Stuff for the ptrace system call */
 152#define PTRACE_SUNATTACH          10
 153#define PTRACE_SUNDETACH          11
 154#define PTRACE_GETREGS            12
 155#define PTRACE_SETREGS            13
 156#define PTRACE_GETFPREGS          14
 157#define PTRACE_SETFPREGS          15
 158#define PTRACE_READDATA           16
 159#define PTRACE_WRITEDATA          17
 160#define PTRACE_READTEXT           18
 161#define PTRACE_WRITETEXT          19
 162#define PTRACE_GETFPAREGS         20
 163#define PTRACE_SETFPAREGS         21
 164
 165#define PTRACE_GETUCODE           29    /* stupid bsd-ism */
 166
 167#endif                          /* !(_SPARC_PTRACE_H) */
 168