#ifndef _ASM_POWERPC_BUG_H#define _ASM_POWERPC_BUG_H#ifdef __KERNEL__ #include <asm/asm-compat.h>/* * Define an illegal instr to trap on the bug. * We don't use 0 because that marks the end of a function * in the ELF ABI.  That's "Boo Boo" in case you wonder... */#define BUG_OPCODE .long 0x00b00b00  /* For asm */#define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */ #ifndef __ASSEMBLY__ struct bug_entry {	unsigned long	bug_addr;	long		line;	const char	*file;	const char	*function;}; struct bug_entry *find_bug(unsigned long bugaddr); /* * If this bit is set in the line number it means that the trap * is for WARN_ON rather than BUG or BUG_ON. */#define BUG_WARNING_TRAP	0x1000000 #ifdef CONFIG_BUG /* * BUG_ON() and WARN_ON() do their best to cooperate with compile-time * optimisations. However depending on the complexity of the condition * some compiler versions may not produce optimal results. */ #define BUG() do {							 \	__asm__ __volatile__(						 \		"1:	twi 31,0,0\n"					 \		".section __bug_table,\"a\"\n"				 \		"\t"PPC_LONG"	1b,%0,%1,%2\n"				 \		".previous"						 \		: : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \} while (0) #define BUG_ON(x) do {						\	if (__builtin_constant_p(x)) {				\		if (x)						\			BUG();					\	} else {						\		__asm__ __volatile__(				\		"1:	"PPC_TLNEI"	%0,0\n"			\		".section __bug_table,\"a\"\n"			\		"\t"PPC_LONG"	1b,%1,%2,%3\n"			\		".previous"					\		: : "r" ((long)(x)), "i" (__LINE__),		\		    "i" (__FILE__), "i" (__FUNCTION__));	\	}							\} while (0) #define __WARN() do {						\	__asm__ __volatile__(					\		"1:	twi 31,0,0\n"				\		".section __bug_table,\"a\"\n"			\		"\t"PPC_LONG"	1b,%0,%1,%2\n"			\		".previous"					\		: : "i" (__LINE__ + BUG_WARNING_TRAP),		\		    "i" (__FILE__), "i" (__FUNCTION__));	\} while (0) #define WARN_ON(x) do {						\	if (__builtin_constant_p(x)) {				\		if (x)						\			__WARN();				\	} else {						\		__asm__ __volatile__(				\		"1:	"PPC_TLNEI"	%0,0\n"			\		".section __bug_table,\"a\"\n"			\		"\t"PPC_LONG"	1b,%1,%2,%3\n"			\		".previous"					\		: : "r" ((long)(x)),				\		    "i" (__LINE__ + BUG_WARNING_TRAP),		\		    "i" (__FILE__), "i" (__FUNCTION__));	\	}							\} while (0) #define HAVE_ARCH_BUG#define HAVE_ARCH_BUG_ON#define HAVE_ARCH_WARN_ON#endif /* CONFIG_BUG */#endif /* __ASSEMBLY __ */ #include <asm-generic/bug.h> #endif /* __KERNEL__ */#endif /* _ASM_POWERPC_BUG_H */