LXR linux/arch/parisc/include/asm/ptrace.h

   1#ifndef _PARISC_PTRACE_H
   2#define _PARISC_PTRACE_H
   3
   4/* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
   5** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
   6*/
   7
   8#include <linux/types.h>
   9
  10/* This struct defines the way the registers are stored on the 
  11 * stack during a system call.
  12 *
  13 * N.B. gdb/strace care about the size and offsets within this
  14 * structure. If you change things, you may break object compatibility
  15 * for those applications.
  16 */
  17
  18struct pt_regs {
  19        unsigned long gr[32];   /* PSW is in gr[0] */
  20        __u64 fr[32];
  21        unsigned long sr[ 8];
  22        unsigned long iasq[2];
  23        unsigned long iaoq[2];
  24        unsigned long cr27;
  25        unsigned long pad0;     /* available for other uses */
  26        unsigned long orig_r28;
  27        unsigned long ksp;
  28        unsigned long kpc;
  29        unsigned long sar;      /* CR11 */
  30        unsigned long iir;      /* CR19 */
  31        unsigned long isr;      /* CR20 */
  32        unsigned long ior;      /* CR21 */
  33        unsigned long ipsw;     /* CR22 */
  34};
  35
  36/*
  37 * The numbers chosen here are somewhat arbitrary but absolutely MUST
  38 * not overlap with any of the number assigned in <linux/ptrace.h>.
  39 *
  40 * These ones are taken from IA-64 on the assumption that theirs are
  41 * the most correct (and we also want to support PTRACE_SINGLEBLOCK
  42 * since we have taken branch traps too)
  43 */
  44#define PTRACE_SINGLEBLOCK      12      /* resume execution until next branch */
  45
  46#ifdef __KERNEL__
  47
  48#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
  49
  50struct task_struct;
  51#define arch_has_single_step()  1
  52void user_disable_single_step(struct task_struct *task);
  53void user_enable_single_step(struct task_struct *task);
  54
  55#define arch_has_block_step()   1
  56void user_enable_block_step(struct task_struct *task);
  57
  58/* XXX should we use iaoq[1] or iaoq[0] ? */
  59#define user_mode(regs)                 (((regs)->iaoq[0] & 3) ? 1 : 0)
  60#define user_space(regs)                (((regs)->iasq[1] != 0) ? 1 : 0)
  61#define instruction_pointer(regs)       ((regs)->iaoq[0] & ~3)
  62unsigned long profile_pc(struct pt_regs *);
  63extern void show_regs(struct pt_regs *);
  64#endif
  65
  66#endif
  67