arch/m32r/include/asm/ptrace.h

   1 /*
   2  * linux/include/asm-m32r/ptrace.h
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * M32R version:
   9  *   Copyright (C) 2001-2002, 2004  Hirokazu Takata <takata at linux-m32r.org>
  10  */
  11 #ifndef _ASM_M32R_PTRACE_H
  12 #define _ASM_M32R_PTRACE_H
  13
  14
  15 #include <asm/m32r.h>           /* M32R_PSW_BSM, M32R_PSW_BPM */
  16 #include <uapi/asm/ptrace.h>
  17
  18 #define arch_has_single_step() (1)
  19
  20 struct task_struct;
  21 extern void init_debug_traps(struct task_struct *);
  22 #define arch_ptrace_attach(child) \
  23         init_debug_traps(child)
  24
  25 #if defined(CONFIG_ISA_M32R2) || defined(CONFIG_CHIP_VDEC2)
  26 #define user_mode(regs) ((M32R_PSW_BPM & (regs)->psw) != 0)
  27 #elif defined(CONFIG_ISA_M32R)
  28 #define user_mode(regs) ((M32R_PSW_BSM & (regs)->psw) != 0)
  29 #else
  30 #error unknown isa configuration
  31 #endif
  32
  33 #define instruction_pointer(regs) ((regs)->bpc)
  34 #define profile_pc(regs) instruction_pointer(regs)
  35 #define user_stack_pointer(regs) ((regs)->spu)
  36
  37 extern void withdraw_debug_trap(struct pt_regs *regs);
  38
  39 #define task_pt_regs(task) \
  40         ((struct pt_regs *)(task_stack_page(task) + THREAD_SIZE) - 1)
  41 #define current_pt_regs() ((struct pt_regs *) \
  42         ((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
  43
  44 #endif /* _ASM_M32R_PTRACE_H */