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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/powerpc/include/asm/debug.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/*

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 * Copyright (C) 1999 Cort Dougan <[email protected]>

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 */

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#ifndef _ASM_POWERPC_DEBUG_H

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#define _ASM_POWERPC_DEBUG_H

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#include <asm/hw_breakpoint.h>

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struct pt_regs;

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#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE)

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extern int (*__debugger)(struct pt_regs *regs);

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extern int (*__debugger_ipi)(struct pt_regs *regs);

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extern int (*__debugger_bpt)(struct pt_regs *regs);

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extern int (*__debugger_sstep)(struct pt_regs *regs);

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extern int (*__debugger_iabr_match)(struct pt_regs *regs);

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extern int (*__debugger_break_match)(struct pt_regs *regs);

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extern int (*__debugger_fault_handler)(struct pt_regs *regs);

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#define DEBUGGER_BOILERPLATE(__NAME) \

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static inline int __NAME(struct pt_regs *regs) \

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{ \

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	if (unlikely(__ ## __NAME)) \

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		return __ ## __NAME(regs); \

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	return 0; \

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}

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DEBUGGER_BOILERPLATE(debugger)

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DEBUGGER_BOILERPLATE(debugger_ipi)

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DEBUGGER_BOILERPLATE(debugger_bpt)

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DEBUGGER_BOILERPLATE(debugger_sstep)

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DEBUGGER_BOILERPLATE(debugger_iabr_match)

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DEBUGGER_BOILERPLATE(debugger_break_match)

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DEBUGGER_BOILERPLATE(debugger_fault_handler)

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#else

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static inline int debugger(struct pt_regs *regs) { return 0; }

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static inline int debugger_ipi(struct pt_regs *regs) { return 0; }

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static inline int debugger_bpt(struct pt_regs *regs) { return 0; }

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static inline int debugger_sstep(struct pt_regs *regs) { return 0; }

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static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; }

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static inline int debugger_break_match(struct pt_regs *regs) { return 0; }

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static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }

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#endif

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void __set_breakpoint(int nr, struct arch_hw_breakpoint *brk);

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void suspend_breakpoints(void);

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void restore_breakpoints(void);

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bool ppc_breakpoint_available(void);

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#ifdef CONFIG_PPC_ADV_DEBUG_REGS

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extern void do_send_trap(struct pt_regs *regs, unsigned long address,

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			 unsigned long error_code, int brkpt);

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#endif

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#endif /* _ASM_POWERPC_DEBUG_H */

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