[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-x86_64 / bug.h

#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];
	unsigned char push;
	signed int filename;
	unsigned char ret;
	unsigned short line;
} __attribute__((packed));

#ifdef CONFIG_BUG
#define HAVE_ARCH_BUG
/* We turn the bug frame into valid instructions to not confuse
   the disassembler. Thanks to Jan Beulich & Suresh Siddha
   for nice instruction selection.
   The magic numbers generate mov $64bitimm,%eax ; ret $offset. */
#define BUG() 								\
	asm volatile(							\
	"ud2 ; pushq $%c1 ; ret $%c0" :: 				\
		     "i"(__LINE__), "i" (__FILE__))
void out_of_line_bug(void);
#else
static inline void out_of_line_bug(void) { }
#endif

#include <asm-generic/bug.h>
#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_X8664_BUG_H
	2	#define __ASM_X8664_BUG_H 1
	3
	4	#include <linux/stringify.h>
	5
	6	/*
	7	* Tell the user there is some problem. The exception handler decodes
	8	* this frame.
	9	*/
	10	struct bug_frame {
b6a68a16	11	unsigned char ud2[2];
049cdefe JB	12	unsigned char push;
049cdefe JB	13	signed int filename;
b6a68a16	14	unsigned char ret;
1da177e4 LT	15	unsigned short line;
	16	} __attribute__((packed));
	17
c8538a7a	18	#ifdef CONFIG_BUG
1da177e4	19	#define HAVE_ARCH_BUG
b6a68a16 AK	20	/* We turn the bug frame into valid instructions to not confuse
	21	the disassembler. Thanks to Jan Beulich & Suresh Siddha
	22	for nice instruction selection.
	23	The magic numbers generate mov $64bitimm,%eax ; ret $offset. */
	24	#define BUG() \
	25	asm volatile( \
049cdefe JB	26	"ud2 ; pushq $%c1 ; ret $%c0" :: \
049cdefe JB	27	"i"(__LINE__), "i" (__FILE__))
1da177e4	28	void out_of_line_bug(void);
4f60fdf6 AN	29	#else
4f60fdf6 AN	30	static inline void out_of_line_bug(void) { }
c8538a7a	31	#endif
1da177e4	32
c8538a7a	33	#include <asm-generic/bug.h>
1da177e4	34	#endif