arch/avr32/include/asm/ptrace.h

   1 /*
   2  * Copyright (C) 2004-2006 Atmel Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8 #ifndef __ASM_AVR32_PTRACE_H
   9 #define __ASM_AVR32_PTRACE_H
  10
  11 #include <uapi/asm/ptrace.h>
  12
  13 #ifndef __ASSEMBLY__
  14
  15 #include <asm/ocd.h>
  16
  17 #define arch_has_single_step()          (1)
  18
  19 #define arch_ptrace_attach(child)       ocd_enable(child)
  20
  21 #define user_mode(regs)                 (((regs)->sr & MODE_MASK) == MODE_USER)
  22 #define instruction_pointer(regs)       ((regs)->pc)
  23 #define profile_pc(regs)                instruction_pointer(regs)
  24 #define user_stack_pointer(regs)        ((regs)->sp)
  25
  26 static __inline__ int valid_user_regs(struct pt_regs *regs)
  27 {
  28         /*
  29          * Some of the Java bits might be acceptable if/when we
  30          * implement some support for that stuff...
  31          */
  32         if ((regs->sr & 0xffff0000) == 0)
  33                 return 1;
  34
  35         /*
  36          * Force status register flags to be sane and report this
  37          * illegal behaviour...
  38          */
  39         regs->sr &= 0x0000ffff;
  40         return 0;
  41 }
  42
  43
  44 #endif /* ! __ASSEMBLY__ */
  45 #endif /* __ASM_AVR32_PTRACE_H */