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 */ 32 extern int regs_query_register_offset(const char *name); 33 extern 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