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/* SPDX-License-Identifier: GPL-2.0 */
/* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
*/
#ifndef _PARISC_PTRACE_H
#define _PARISC_PTRACE_H
#include <asm/assembly.h>
#include <uapi/asm/ptrace.h>
#define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
#define arch_has_single_step() 1
#define arch_has_block_step() 1
/* XXX should we use iaoq[1] or iaoq[0] ? */
#define user_mode(regs) (((regs)->iaoq[0] & 3) != PRIV_KERNEL)
#define user_space(regs) ((regs)->iasq[1] != PRIV_KERNEL)
#define instruction_pointer(regs) ((regs)->iaoq[0] & ~3)
#define user_stack_pointer(regs) ((regs)->gr[30])
unsigned long profile_pc(struct pt_regs *);
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
return regs->gr[28];
}
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->iaoq[0] = val;
regs->iaoq[1] = val + 4;
}
/* Query offset/name of register from its name/offset */
extern int regs_query_register_offset(const char *name);
extern const char *regs_query_register_name(unsigned int offset);
#define MAX_REG_OFFSET (offsetof(struct pt_regs, ipsw))
#define kernel_stack_pointer(regs) ((regs)->gr[30])
static inline unsigned long regs_get_register(struct pt_regs *regs,
unsigned int offset)
{
if (unlikely(offset > MAX_REG_OFFSET))
return 0;
return *(unsigned long *)((unsigned long)regs + offset);
}
unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n);
int regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr);
#endif
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