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kernel/linux-rt-4.4.41/arch/s390/include/asm/bug.h 1.45 KB
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  #ifndef _ASM_S390_BUG_H
  #define _ASM_S390_BUG_H
  
  #include <linux/kernel.h>
  
  #ifdef CONFIG_BUG
  
  #ifdef CONFIG_DEBUG_BUGVERBOSE
  
  #define __EMIT_BUG(x) do {					\
  	asm volatile(						\
  		"0:	j	0b+2
  "				\
  		"1:
  "						\
  		".section .rodata.str,\"aMS\",@progbits,1
  "	\
  		"2:	.asciz	\""__FILE__"\"
  "		\
  		".previous
  "					\
  		".section __bug_table,\"a\"
  "			\
  		"3:	.long	1b-3b,2b-3b
  "			\
  		"	.short	%0,%1
  "			\
  		"	.org	3b+%2
  "			\
  		".previous
  "					\
  		: : "i" (__LINE__),				\
  		    "i" (x),					\
  		    "i" (sizeof(struct bug_entry)));		\
  } while (0)
  
  #else /* CONFIG_DEBUG_BUGVERBOSE */
  
  #define __EMIT_BUG(x) do {				\
  	asm volatile(					\
  		"0:	j	0b+2
  "			\
  		"1:
  "					\
  		".section __bug_table,\"a\"
  "		\
  		"2:	.long	1b-2b
  "		\
  		"	.short	%0
  "			\
  		"	.org	2b+%1
  "		\
  		".previous
  "				\
  		: : "i" (x),				\
  		    "i" (sizeof(struct bug_entry)));	\
  } while (0)
  
  #endif /* CONFIG_DEBUG_BUGVERBOSE */
  
  #define BUG() do {					\
  	__EMIT_BUG(0);					\
  	unreachable();					\
  } while (0)
  
  #define __WARN_TAINT(taint) do {			\
  	__EMIT_BUG(BUGFLAG_TAINT(taint));		\
  } while (0)
  
  #define WARN_ON(x) ({					\
  	int __ret_warn_on = !!(x);			\
  	if (__builtin_constant_p(__ret_warn_on)) {	\
  		if (__ret_warn_on)			\
  			__WARN();			\
  	} else {					\
  		if (unlikely(__ret_warn_on))		\
  			__WARN();			\
  	}						\
  	unlikely(__ret_warn_on);			\
  })
  
  #define HAVE_ARCH_BUG
  #define HAVE_ARCH_WARN_ON
  #endif /* CONFIG_BUG */
  
  #include <asm-generic/bug.h>
  
  #endif /* _ASM_S390_BUG_H */