ptrace.h
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/*
* Ptrace definitions for the Hexagon architecture
*
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef _ASM_PTRACE_H
#define _ASM_PTRACE_H
#include <asm/registers.h>
#define instruction_pointer(regs) pt_elr(regs)
#define user_stack_pointer(regs) ((regs)->r29)
#define profile_pc(regs) instruction_pointer(regs)
/* kprobe-based event tracer support */
extern int regs_query_register_offset(const char *name);
extern const char *regs_query_register_name(unsigned int offset);
#define current_pt_regs() \
((struct pt_regs *) \
((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
#if CONFIG_HEXAGON_ARCH_VERSION >= 4
#define arch_has_single_step() (1)
#endif
#endif