include/asm-ppc64/bug.h

   1 #ifndef _PPC64_BUG_H
   2 #define _PPC64_BUG_H
   3
   4 #include <linux/config.h>
   5
   6 /*
   7  * Define an illegal instr to trap on the bug.
   8  * We don't use 0 because that marks the end of a function
   9  * in the ELF ABI.  That's "Boo Boo" in case you wonder...
  10  */
  11 #define BUG_OPCODE .long 0x00b00b00  /* For asm */
  12 #define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */
  13
  14 #ifndef __ASSEMBLY__
  15
  16 #ifdef CONFIG_XMON
  17 struct pt_regs;
  18 extern void xmon(struct pt_regs *excp);
  19 #define BUG() do { \
  20         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
  21         xmon(0); \
  22 } while (0)
  23 #else
  24 #define BUG() do { \
  25         printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
  26         __asm__ __volatile__(".long " BUG_ILLEGAL_INSTR); \
  27 } while (0)
  28 #endif
  29
  30 #define PAGE_BUG(page) do { BUG(); } while (0)
  31
  32 #endif
  33 #endif