include/asm-x86_64/bug.h

   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 {
  11        unsigned char ud2[2];
  12         /* should use 32bit offset instead, but the assembler doesn't
  13            like it */
  14         char *filename;
  15         unsigned short line;
  16 } __attribute__((packed));
  17
  18 #ifdef CONFIG_BUG
  19 #define HAVE_ARCH_BUG
  20 #define BUG() \
  21         asm volatile("ud2 ; .quad %c1 ; .short %c0" :: \
  22                      "i"(__LINE__), "i" (__stringify(__FILE__)))
  23 void out_of_line_bug(void);
  24 #else
  25 static inline void out_of_line_bug(void) { }
  26 #endif
  27
  28 #include <asm-generic/bug.h>
  29 #endif