| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> |
| 4 | */ |
| 5 | #ifndef _ASM_POWERPC_DEBUG_H |
| 6 | #define _ASM_POWERPC_DEBUG_H |
| 7 | |
| 8 | #include <asm/hw_breakpoint.h> |
| 9 | |
| 10 | struct pt_regs; |
| 11 | |
| 12 | #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE) |
| 13 | |
| 14 | extern int (*__debugger)(struct pt_regs *regs); |
| 15 | extern int (*__debugger_ipi)(struct pt_regs *regs); |
| 16 | extern int (*__debugger_bpt)(struct pt_regs *regs); |
| 17 | extern int (*__debugger_sstep)(struct pt_regs *regs); |
| 18 | extern int (*__debugger_iabr_match)(struct pt_regs *regs); |
| 19 | extern int (*__debugger_break_match)(struct pt_regs *regs); |
| 20 | extern int (*__debugger_fault_handler)(struct pt_regs *regs); |
| 21 | |
| 22 | #define DEBUGGER_BOILERPLATE(__NAME) \ |
| 23 | static inline int __NAME(struct pt_regs *regs) \ |
| 24 | { \ |
| 25 | if (unlikely(__ ## __NAME)) \ |
| 26 | return __ ## __NAME(regs); \ |
| 27 | return 0; \ |
| 28 | } |
| 29 | |
| 30 | DEBUGGER_BOILERPLATE(debugger) |
| 31 | DEBUGGER_BOILERPLATE(debugger_ipi) |
| 32 | DEBUGGER_BOILERPLATE(debugger_bpt) |
| 33 | DEBUGGER_BOILERPLATE(debugger_sstep) |
| 34 | DEBUGGER_BOILERPLATE(debugger_iabr_match) |
| 35 | DEBUGGER_BOILERPLATE(debugger_break_match) |
| 36 | DEBUGGER_BOILERPLATE(debugger_fault_handler) |
| 37 | |
| 38 | #else |
| 39 | static inline int debugger(struct pt_regs *regs) { return 0; } |
| 40 | static inline int debugger_ipi(struct pt_regs *regs) { return 0; } |
| 41 | static inline int debugger_bpt(struct pt_regs *regs) { return 0; } |
| 42 | static inline int debugger_sstep(struct pt_regs *regs) { return 0; } |
| 43 | static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; } |
| 44 | static inline int debugger_break_match(struct pt_regs *regs) { return 0; } |
| 45 | static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } |
| 46 | #endif |
| 47 | |
| 48 | void __set_breakpoint(struct arch_hw_breakpoint *brk); |
| 49 | bool ppc_breakpoint_available(void); |
| 50 | #ifdef CONFIG_PPC_ADV_DEBUG_REGS |
| 51 | extern void do_send_trap(struct pt_regs *regs, unsigned long address, |
| 52 | unsigned long error_code, int brkpt); |
| 53 | #else |
| 54 | |
| 55 | extern void do_break(struct pt_regs *regs, unsigned long address, |
| 56 | unsigned long error_code); |
| 57 | #endif |
| 58 | |
| 59 | #endif /* _ASM_POWERPC_DEBUG_H */ |