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

   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