arch/hexagon/include/uapi/asm/ptrace.h

   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