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