diff options
Diffstat (limited to 'arch/powerpc/include/asm/debug.h')
| -rw-r--r-- | arch/powerpc/include/asm/debug.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h new file mode 100644 index 000000000..51c744608 --- /dev/null +++ b/arch/powerpc/include/asm/debug.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu> + */ +#ifndef _ASM_POWERPC_DEBUG_H +#define _ASM_POWERPC_DEBUG_H + +#include <asm/hw_breakpoint.h> + +struct pt_regs; + +#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE) + +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); +extern int (*__debugger_break_match)(struct pt_regs *regs); +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) +DEBUGGER_BOILERPLATE(debugger_break_match) +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; } +static inline int debugger_break_match(struct pt_regs *regs) { return 0; } +static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } +#endif + +void __set_breakpoint(int nr, struct arch_hw_breakpoint *brk); +void suspend_breakpoints(void); +void restore_breakpoints(void); +bool ppc_breakpoint_available(void); +#ifdef CONFIG_PPC_ADV_DEBUG_REGS +extern void do_send_trap(struct pt_regs *regs, unsigned long address, + unsigned long error_code, int brkpt); +#endif + +#endif /* _ASM_POWERPC_DEBUG_H */ |