#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 */ #ifdef CONFIG_BUG #ifdef __ASSEMBLY__#ifdef CONFIG_DEBUG_BUGVERBOSE.macro EMIT_BUG_ENTRY addr,file,line,flags	 .section __bug_table,"a"5001:	 PPC_LONG \addr, 5002f	 .short \line, \flags	 .org 5001b+BUG_ENTRY_SIZE	 .previous	 .section .rodata,"a"5002:	 .asciz "\file"	 .previous.endm#else .macro EMIT_BUG_ENTRY addr,file,line,flags	 .section __bug_table,"a"5001:	 PPC_LONG \addr	 .short \flags	 .org 5001b+BUG_ENTRY_SIZE	 .previous.endm#endif /* verbose */ #else /* !__ASSEMBLY__ *//* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and   sizeof(struct bug_entry), respectively */#ifdef CONFIG_DEBUG_BUGVERBOSE#define _EMIT_BUG_ENTRY				\	".section __bug_table,\"a\"\n"		\	"2:\t" PPC_LONG "1b, %0\n"		\	"\t.short %1, %2\n"			\	".org 2b+%3\n"				\	".previous\n"#else#define _EMIT_BUG_ENTRY				\	".section __bug_table,\"a\"\n"		\	"2:\t" PPC_LONG "1b\n"			\	"\t.short %2\n"				\	".org 2b+%3\n"				\	".previous\n"#endif /* * 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"				\		_EMIT_BUG_ENTRY					\		: : "i" (__FILE__), "i" (__LINE__),		\		    "i" (0), "i"  (sizeof(struct bug_entry)));	\	for(;;) ;						\} while (0) #define BUG_ON(x) do {						\	if (__builtin_constant_p(x)) {				\		if (x)						\			BUG();					\	} else {						\		__asm__ __volatile__(				\		"1:	"PPC_TLNEI"	%4,0\n"			\		_EMIT_BUG_ENTRY					\		: : "i" (__FILE__), "i" (__LINE__), "i" (0),	\		  "i" (sizeof(struct bug_entry)),		\		  "r" ((long)(x)));				\	}							\} while (0) #define __WARN() do {						\	__asm__ __volatile__(					\		"1:	twi 31,0,0\n"				\		_EMIT_BUG_ENTRY					\		: : "i" (__FILE__), "i" (__LINE__),		\		  "i" (BUGFLAG_WARNING),			\		  "i" (sizeof(struct bug_entry)));		\} while (0) #define WARN_ON(x) ({						\	typeof(x) __ret_warn_on = (x);				\	if (__builtin_constant_p(__ret_warn_on)) {		\		if (__ret_warn_on)				\			__WARN();				\	} else {						\		__asm__ __volatile__(				\		"1:	"PPC_TLNEI"	%4,0\n"			\		_EMIT_BUG_ENTRY					\		: : "i" (__FILE__), "i" (__LINE__),		\		  "i" (BUGFLAG_WARNING),			\		  "i" (sizeof(struct bug_entry)),		\		  "r" (__ret_warn_on));				\	}							\	unlikely(__ret_warn_on);				\}) #define HAVE_ARCH_BUG#define HAVE_ARCH_BUG_ON#define HAVE_ARCH_WARN_ON#endif /* __ASSEMBLY __ */#endif /* CONFIG_BUG */ #include <asm-generic/bug.h> #endif /* __KERNEL__ */#endif /* _ASM_POWERPC_BUG_H */