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 struct pt_regs; 8 9 extern struct dentry *powerpc_debugfs_root; 10 11 #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) 12 13 extern int (*__debugger)(struct pt_regs *regs); 14 extern int (*__debugger_ipi)(struct pt_regs *regs); 15 extern int (*__debugger_bpt)(struct pt_regs *regs); 16 extern int (*__debugger_sstep)(struct pt_regs *regs); 17 extern int (*__debugger_iabr_match)(struct pt_regs *regs); 18 extern int (*__debugger_dabr_match)(struct pt_regs *regs); 19 extern int (*__debugger_fault_handler)(struct pt_regs *regs); 20 21 #define DEBUGGER_BOILERPLATE(__NAME) \ 22 static inline int __NAME(struct pt_regs *regs) \ 23 { \ 24 if (unlikely(__ ## __NAME)) \ 25 return __ ## __NAME(regs); \ 26 return 0; \ 27 } 28 29 DEBUGGER_BOILERPLATE(debugger) 30 DEBUGGER_BOILERPLATE(debugger_ipi) 31 DEBUGGER_BOILERPLATE(debugger_bpt) 32 DEBUGGER_BOILERPLATE(debugger_sstep) 33 DEBUGGER_BOILERPLATE(debugger_iabr_match) 34 DEBUGGER_BOILERPLATE(debugger_dabr_match) 35 DEBUGGER_BOILERPLATE(debugger_fault_handler) 36 37 #else 38 static inline int debugger(struct pt_regs *regs) { return 0; } 39 static inline int debugger_ipi(struct pt_regs *regs) { return 0; } 40 static inline int debugger_bpt(struct pt_regs *regs) { return 0; } 41 static inline int debugger_sstep(struct pt_regs *regs) { return 0; } 42 static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; } 43 static inline int debugger_dabr_match(struct pt_regs *regs) { return 0; } 44 static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } 45 #endif 46 47 extern int set_dabr(unsigned long dabr, unsigned long dabrx); 48 #ifdef CONFIG_PPC_ADV_DEBUG_REGS 49 extern void do_send_trap(struct pt_regs *regs, unsigned long address, 50 unsigned long error_code, int signal_code, int brkpt); 51 #else 52 extern void do_dabr(struct pt_regs *regs, unsigned long address, 53 unsigned long error_code); 54 #endif 55 56 #endif /* _ASM_POWERPC_DEBUG_H */ 57