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75ebedf1d2
Some parts of the HAVE_REGS_AND_STACK_ACCESS_API feature is needed for the rseq syscall. This patch adds the most important parts, and as long as we don't support kprobes, we should be fine. Signed-off-by: Helge Deller <deller@gmx.de>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* 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[20];
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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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}
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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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#endif
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