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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/s390/include/asm/bug.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#ifndef _ASM_S390_BUG_H

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#define _ASM_S390_BUG_H

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#include <linux/compiler.h>

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#ifdef CONFIG_BUG

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#ifdef CONFIG_DEBUG_BUGVERBOSE

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#define __EMIT_BUG(x) do {					\

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	asm_inline volatile(					\

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		"0:	mc	0,0\n"				\

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		".section .rodata.str,\"aMS\",@progbits,1\n"	\

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		"1:	.asciz	\""__FILE__"\"\n"		\

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		".previous\n"					\

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		".section __bug_table,\"aw\"\n"			\

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		"2:	.long	0b-.\n"				\

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		"	.long	1b-.\n"				\

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		"	.short	%0,%1\n"			\

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		"	.org	2b+%2\n"			\

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		".previous\n"					\

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		: : "i" (__LINE__),				\

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		    "i" (x),					\

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		    "i" (sizeof(struct bug_entry)));		\

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} while (0)

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#else /* CONFIG_DEBUG_BUGVERBOSE */

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#define __EMIT_BUG(x) do {					\

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	asm_inline volatile(					\

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		"0:	mc	0,0\n"				\

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		".section __bug_table,\"aw\"\n"			\

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		"1:	.long	0b-.\n"				\

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		"	.short	%0\n"				\

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		"	.org	1b+%1\n"			\

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		".previous\n"					\

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		: : "i" (x),					\

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		    "i" (sizeof(struct bug_entry)));		\

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} while (0)

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#endif /* CONFIG_DEBUG_BUGVERBOSE */

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#define BUG() do {					\

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	__EMIT_BUG(0);					\

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	unreachable();					\

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} while (0)

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#define __WARN_FLAGS(flags) do {			\

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	__EMIT_BUG(BUGFLAG_WARNING|(flags));		\

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} while (0)

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#define WARN_ON(x) ({					\

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	int __ret_warn_on = !!(x);			\

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	if (__builtin_constant_p(__ret_warn_on)) {	\

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		if (__ret_warn_on)			\

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			__WARN();			\

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	} else {					\

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		if (unlikely(__ret_warn_on))		\

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			__WARN();			\

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	}						\

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	unlikely(__ret_warn_on);			\

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})

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#define HAVE_ARCH_BUG

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#define HAVE_ARCH_WARN_ON

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#endif /* CONFIG_BUG */

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#include <asm-generic/bug.h>

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#endif /* _ASM_S390_BUG_H */

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