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arch/powerpc/include/asm/debug.h 1.97 KB
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ae3a197e3   David Howells   Disintegrate asm/... 
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  /*
   * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
   */
  #ifndef _ASM_POWERPC_DEBUG_H
  #define _ASM_POWERPC_DEBUG_H
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  #include <asm/hw_breakpoint.h>
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  struct pt_regs;
  
  extern struct dentry *powerpc_debugfs_root;
  
  #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
  
  extern int (*__debugger)(struct pt_regs *regs);
  extern int (*__debugger_ipi)(struct pt_regs *regs);
  extern int (*__debugger_bpt)(struct pt_regs *regs);
  extern int (*__debugger_sstep)(struct pt_regs *regs);
  extern int (*__debugger_iabr_match)(struct pt_regs *regs);
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  extern int (*__debugger_break_match)(struct pt_regs *regs);
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  extern int (*__debugger_fault_handler)(struct pt_regs *regs);
  
  #define DEBUGGER_BOILERPLATE(__NAME) \
  static inline int __NAME(struct pt_regs *regs) \
  { \
  	if (unlikely(__ ## __NAME)) \
  		return __ ## __NAME(regs); \
  	return 0; \
  }
  
  DEBUGGER_BOILERPLATE(debugger)
  DEBUGGER_BOILERPLATE(debugger_ipi)
  DEBUGGER_BOILERPLATE(debugger_bpt)
  DEBUGGER_BOILERPLATE(debugger_sstep)
  DEBUGGER_BOILERPLATE(debugger_iabr_match)
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  DEBUGGER_BOILERPLATE(debugger_break_match)
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  DEBUGGER_BOILERPLATE(debugger_fault_handler)
  
  #else
  static inline int debugger(struct pt_regs *regs) { return 0; }
  static inline int debugger_ipi(struct pt_regs *regs) { return 0; }
  static inline int debugger_bpt(struct pt_regs *regs) { return 0; }
  static inline int debugger_sstep(struct pt_regs *regs) { return 0; }
  static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; }
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  static inline int debugger_break_match(struct pt_regs *regs) { return 0; }
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  static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
  #endif
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  void set_breakpoint(struct arch_hw_breakpoint *brk);
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  void __set_breakpoint(struct arch_hw_breakpoint *brk);
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  #ifdef CONFIG_PPC_ADV_DEBUG_REGS
  extern void do_send_trap(struct pt_regs *regs, unsigned long address,
  			 unsigned long error_code, int signal_code, int brkpt);
  #else
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  extern void do_break(struct pt_regs *regs, unsigned long address,
  		     unsigned long error_code);
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  #endif
  
  #endif /* _ASM_POWERPC_DEBUG_H */