xref: /linux/arch/parisc/include/asm/ptrace.h (revision d003d772e64df08af04ee63609d47169ee82ae0e)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
3 ** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
4 */
5 #ifndef _PARISC_PTRACE_H
6 #define _PARISC_PTRACE_H
7 
8 #include <uapi/asm/ptrace.h>
9 
10 
11 #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
12 
13 #define arch_has_single_step()	1
14 #define arch_has_block_step()	1
15 
16 /* XXX should we use iaoq[1] or iaoq[0] ? */
17 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
18 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
19 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
20 #define user_stack_pointer(regs)	((regs)->gr[30])
21 unsigned long profile_pc(struct pt_regs *);
22 
23 static inline unsigned long regs_return_value(struct pt_regs *regs)
24 {
25 	return regs->gr[28];
26 }
27 
28 static inline void instruction_pointer_set(struct pt_regs *regs,
29 						unsigned long val)
30 {
31 	regs->iaoq[0] = val;
32 	regs->iaoq[1] = val + 4;
33 }
34 
35 /* Query offset/name of register from its name/offset */
36 extern int regs_query_register_offset(const char *name);
37 extern const char *regs_query_register_name(unsigned int offset);
38 #define MAX_REG_OFFSET (offsetof(struct pt_regs, ipsw))
39 
40 #endif
41