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 9 struct pt_regs; 10 11 extern struct dentry *powerpc_debugfs_root; 12 13 #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) 14 15 extern int (*__debugger)(struct pt_regs *regs); 16 extern int (*__debugger_ipi)(struct pt_regs *regs); 17 extern int (*__debugger_bpt)(struct pt_regs *regs); 18 extern int (*__debugger_sstep)(struct pt_regs *regs); 19 extern int (*__debugger_iabr_match)(struct pt_regs *regs); 20 extern int (*__debugger_break_match)(struct pt_regs *regs); 21 extern int (*__debugger_fault_handler)(struct pt_regs *regs); 22 23 #define DEBUGGER_BOILERPLATE(__NAME) \ 24 static inline int __NAME(struct pt_regs *regs) \ 25 { \ 26 if (unlikely(__ ## __NAME)) \ 27 return __ ## __NAME(regs); \ 28 return 0; \ 29 } 30 31 DEBUGGER_BOILERPLATE(debugger) 32 DEBUGGER_BOILERPLATE(debugger_ipi) 33 DEBUGGER_BOILERPLATE(debugger_bpt) 34 DEBUGGER_BOILERPLATE(debugger_sstep) 35 DEBUGGER_BOILERPLATE(debugger_iabr_match) 36 DEBUGGER_BOILERPLATE(debugger_break_match) 37 DEBUGGER_BOILERPLATE(debugger_fault_handler) 38 39 #else 40 static inline int debugger(struct pt_regs *regs) { return 0; } 41 static inline int debugger_ipi(struct pt_regs *regs) { return 0; } 42 static inline int debugger_bpt(struct pt_regs *regs) { return 0; } 43 static inline int debugger_sstep(struct pt_regs *regs) { return 0; } 44 static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; } 45 static inline int debugger_break_match(struct pt_regs *regs) { return 0; } 46 static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } 47 #endif 48 49 void set_breakpoint(struct arch_hw_breakpoint *brk); 50 void __set_breakpoint(struct arch_hw_breakpoint *brk); 51 #ifdef CONFIG_PPC_ADV_DEBUG_REGS 52 extern void do_send_trap(struct pt_regs *regs, unsigned long address, 53 unsigned long error_code, int signal_code, int brkpt); 54 #else 55 56 extern 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