LXR linux/arch/powerpc/include/asm/debug.h

   1/*
   2 * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
   3 */
   4#ifndef _ASM_POWERPC_DEBUG_H
   5#define _ASM_POWERPC_DEBUG_H
   6
   7#include <asm/hw_breakpoint.h>
   8
   9struct pt_regs;
  10
  11extern struct dentry *powerpc_debugfs_root;
  12
  13#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
  14
  15extern int (*__debugger)(struct pt_regs *regs);
  16extern int (*__debugger_ipi)(struct pt_regs *regs);
  17extern int (*__debugger_bpt)(struct pt_regs *regs);
  18extern int (*__debugger_sstep)(struct pt_regs *regs);
  19extern int (*__debugger_iabr_match)(struct pt_regs *regs);
  20extern int (*__debugger_break_match)(struct pt_regs *regs);
  21extern int (*__debugger_fault_handler)(struct pt_regs *regs);
  22
  23#define DEBUGGER_BOILERPLATE(__NAME) \
  24static inline int __NAME(struct pt_regs *regs) \
  25{ \
  26        if (unlikely(__ ## __NAME)) \
  27                return __ ## __NAME(regs); \
  28        return 0; \
  29}
  30
  31DEBUGGER_BOILERPLATE(debugger)
  32DEBUGGER_BOILERPLATE(debugger_ipi)
  33DEBUGGER_BOILERPLATE(debugger_bpt)
  34DEBUGGER_BOILERPLATE(debugger_sstep)
  35DEBUGGER_BOILERPLATE(debugger_iabr_match)
  36DEBUGGER_BOILERPLATE(debugger_break_match)
  37DEBUGGER_BOILERPLATE(debugger_fault_handler)
  38
  39#else
  40static inline int debugger(struct pt_regs *regs) { return 0; }
  41static inline int debugger_ipi(struct pt_regs *regs) { return 0; }
  42static inline int debugger_bpt(struct pt_regs *regs) { return 0; }
  43static inline int debugger_sstep(struct pt_regs *regs) { return 0; }
  44static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; }
  45static inline int debugger_break_match(struct pt_regs *regs) { return 0; }
  46static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
  47#endif
  48
  49void set_breakpoint(struct arch_hw_breakpoint *brk);
  50void __set_breakpoint(struct arch_hw_breakpoint *brk);
  51#ifdef CONFIG_PPC_ADV_DEBUG_REGS
  52extern void do_send_trap(struct pt_regs *regs, unsigned long address,
  53                         unsigned long error_code, int signal_code, int brkpt);
  54#else
  55
  56extern void do_break(struct pt_regs *regs, unsigned long address,
  57                     unsigned long error_code);
  58#endif
  59
  60#endif /* _ASM_POWERPC_DEBUG_H */
  61