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File: [Development] / linux-2.6-xfs / include / asm-generic / bug.h (download)

Revision 1.5, Tue Oct 31 15:49:12 2006 UTC (10 years, 11 months ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.4: +21 -18 lines 

Merge up to 2.6.19-rc3
Merge of 2.6.x-xfs-melb:linux:27325b by kenmcd.

#ifndef _ASM_GENERIC_BUG_H
#define _ASM_GENERIC_BUG_H

#include <linux/compiler.h>

#ifdef CONFIG_BUG
#ifndef HAVE_ARCH_BUG
#define BUG() do { \
	printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
	panic("BUG!"); \
} while (0)
#endif

#ifndef HAVE_ARCH_BUG_ON
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
#endif

#ifndef HAVE_ARCH_WARN_ON
#define WARN_ON(condition) ({						\
	typeof(condition) __ret_warn_on = (condition);			\
	if (unlikely(__ret_warn_on)) {					\
		printk("BUG: warning at %s:%d/%s()\n", __FILE__,	\
			__LINE__, __FUNCTION__);			\
		dump_stack();						\
	}								\
	unlikely(__ret_warn_on);					\
})
#endif

#else /* !CONFIG_BUG */
#ifndef HAVE_ARCH_BUG
#define BUG()
#endif

#ifndef HAVE_ARCH_BUG_ON
#define BUG_ON(condition) do { if (condition) ; } while(0)
#endif

#ifndef HAVE_ARCH_WARN_ON
#define WARN_ON(condition) ({						\
	typeof(condition) __ret_warn_on = (condition);			\
	unlikely(__ret_warn_on);					\
})
#endif
#endif

#define WARN_ON_ONCE(condition)	({				\
	static int __warned;					\
	typeof(condition) __ret_warn_once = (condition);	\
								\
	if (unlikely(__ret_warn_once))				\
		if (WARN_ON(!__warned)) 			\
			__warned = 1;				\
	unlikely(__ret_warn_once);				\
})

#ifdef CONFIG_SMP
# define WARN_ON_SMP(x)			WARN_ON(x)
#else
# define WARN_ON_SMP(x)			do { } while (0)
#endif

#endif