root/include/asm-parisc/ptrace.h

INCLUDED FROM

#ifndef _PARISC_PTRACE_H
#define _PARISC_PTRACE_H

/* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
*/

#include <linux/types.h>

/* This struct defines the way the registers are stored on the 
 * stack during a system call.
 *
 * N.B. gdb/strace care about the size and offsets within this
 * structure. If you change things, you may break object compatibility
 * for those applications.
 */

struct pt_regs {
        unsigned long gr[32];   /* PSW is in gr[0] */
        __u64 fr[32];
        unsigned long sr[ 8];
        unsigned long iasq[2];
        unsigned long iaoq[2];
        unsigned long cr27;
        unsigned long pad0;     /* available for other uses */
        unsigned long orig_r28;
        unsigned long ksp;
        unsigned long kpc;
        unsigned long sar;      /* CR11 */
        unsigned long iir;      /* CR19 */
        unsigned long isr;      /* CR20 */
        unsigned long ior;      /* CR21 */
        unsigned long ipsw;     /* CR22 */
};

/*
 * The numbers chosen here are somewhat arbitrary but absolutely MUST
 * not overlap with any of the number assigned in <linux/ptrace.h>.
 *
 * These ones are taken from IA-64 on the assumption that theirs are
 * the most correct (and we also want to support PTRACE_SINGLEBLOCK
 * since we have taken branch traps too)
 */
#define PTRACE_SINGLEBLOCK      12      /* resume execution until next branch */

#ifdef __KERNEL__

#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))

/* XXX should we use iaoq[1] or iaoq[0] ? */
#define user_mode(regs)                 (((regs)->iaoq[0] & 3) ? 1 : 0)
#define user_space(regs)                (((regs)->iasq[1] != 0) ? 1 : 0)
#define instruction_pointer(regs)       ((regs)->iaoq[0] & ~3)
unsigned long profile_pc(struct pt_regs *);
extern void show_regs(struct pt_regs *);
#endif

#endif