1/*
2 * Ptrace definitions for the Hexagon architecture
3 *
4 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 and
8 * only version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301, USA.
19 */
20
21#ifndef _ASM_PTRACE_H
22#define _ASM_PTRACE_H
23
24#include <asm/registers.h>
25
26#define instruction_pointer(regs) pt_elr(regs)
27#define user_stack_pointer(regs) ((regs)->r29)
28
29#define profile_pc(regs) instruction_pointer(regs)
30
31/* kprobe-based event tracer support */
32extern int regs_query_register_offset(const char *name);
33extern const char *regs_query_register_name(unsigned int offset);
34
35#define current_pt_regs() \
36	((struct pt_regs *) \
37	 ((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
38
39#if CONFIG_HEXAGON_ARCH_VERSION >= 4
40#define arch_has_single_step()	(1)
41#endif
42
43
44#endif
45