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/* ptrace.h: ptrace() relevant definitions
*
* Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_PTRACE_H
#define _ASM_PTRACE_H
#include <asm/registers.h>
#ifdef __KERNEL__
#include <asm/irq_regs.h>
#define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0)
#endif
#define PT_PSR 0
#define PT_ISR 1
#define PT_CCR 2
#define PT_CCCR 3
#define PT_LR 4
#define PT_LCR 5
#define PT_PC 6
#define PT__STATUS 7 /* exception status */
#define PT_SYSCALLNO 8 /* syscall number or -1 */
#define PT_ORIG_GR8 9 /* saved GR8 for signal handling */
#define PT_GNER0 10
#define PT_GNER1 11
#define PT_IACC0H 12
#define PT_IACC0L 13
#define PT_GR(j) ( 14 + (j)) /* GRj for 0<=j<=63 */
#define PT_FR(j) ( 78 + (j)) /* FRj for 0<=j<=63 */
#define PT_FNER(j) (142 + (j)) /* FNERj for 0<=j<=1 */
#define PT_MSR(j) (144 + (j)) /* MSRj for 0<=j<=2 */
#define PT_ACC(j) (146 + (j)) /* ACCj for 0<=j<=7 */
#define PT_ACCG(jklm) (154 + (jklm)) /* ACCGjklm for 0<=jklm<=1 (reads four regs per slot) */
#define PT_FSR(j) (156 + (j)) /* FSRj for 0<=j<=0 */
#define PT__GPEND 78
#define PT__END 157
#define PT_TBR PT_GR(0)
#define PT_SP PT_GR(1)
#define PT_FP PT_GR(2)
#define PT_PREV_FRAME PT_GR(28) /* previous exception frame pointer (old gr28 value) */
#define PT_CURR_TASK PT_GR(29) /* current task */
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
#define PTRACE_GETFPREGS 14
#define PTRACE_SETFPREGS 15
#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
struct task_struct;
/*
* we dedicate GR28 to keeping a pointer to the current exception frame
* - gr28 is destroyed on entry to the kernel from userspace
*/
register struct pt_regs *__frame asm("gr28");
#define user_mode(regs) (!((regs)->psr & PSR_S))
#define instruction_pointer(regs) ((regs)->pc)
#define user_stack_pointer(regs) ((regs)->sp)
#define current_pt_regs() (__frame)
extern unsigned long user_stack(const struct pt_regs *);
#define profile_pc(regs) ((regs)->pc)
#define task_pt_regs(task) ((task)->thread.frame0)
#define arch_has_single_step() (1)
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_PTRACE_H */
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