kernel-ark/include/asm-x86_64/bug.h

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#ifndef __ASM_X8664_BUG_H
#define __ASM_X8664_BUG_H 1
#include <linux/stringify.h>
/*
* Tell the user there is some problem. The exception handler decodes
* this frame.
*/
struct bug_frame {
unsigned char ud2[2];
/* should use 32bit offset instead, but the assembler doesn't
like it */
char *filename;
unsigned short line;
} __attribute__((packed));
#ifdef CONFIG_BUG
#define HAVE_ARCH_BUG
#define BUG() \
asm volatile("ud2 ; .quad %c1 ; .short %c0" :: \
"i"(__LINE__), "i" (__stringify(__FILE__)))
void out_of_line_bug(void);
#else
static inline void out_of_line_bug(void) { }
#endif
#include <asm-generic/bug.h>
#endif