1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Ptrace definitions for the Hexagon architecture 4 * 5 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 and 9 * only version 2 as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 * 02110-1301, USA. 20 */ 21 22 #ifndef _ASM_PTRACE_H 23 #define _ASM_PTRACE_H 24 25 #include <asm/registers.h> 26 27 #define instruction_pointer(regs) pt_elr(regs) 28 #define user_stack_pointer(regs) ((regs)->r29) 29 30 #define profile_pc(regs) instruction_pointer(regs) 31 32 /* kprobe-based event tracer support */ 33 extern int regs_query_register_offset(const char *name); 34 extern const char *regs_query_register_name(unsigned int offset); 35 36 #define current_pt_regs() \ 37 ((struct pt_regs *) \ 38 ((unsigned long)current_thread_info() + THREAD_SIZE) - 1) 39 40 #if CONFIG_HEXAGON_ARCH_VERSION >= 4 41 #define arch_has_single_step() (1) 42 #endif 43 44 45 #endif 46