LXR linux/include/asm-s390/bug.h

   1#ifndef _ASM_S390_BUG_H
   2#define _ASM_S390_BUG_H
   3
   4#include <linux/kernel.h>
   5
   6#ifdef CONFIG_BUG
   7
   8#ifdef CONFIG_64BIT
   9#define S390_LONG ".quad"
  10#else
  11#define S390_LONG ".long"
  12#endif
  13
  14#ifdef CONFIG_DEBUG_BUGVERBOSE
  15
  16#define __EMIT_BUG(x) do {                                      \
  17        asm volatile(                                           \
  18                "0:     j       0b+2\n"                         \
  19                "1:\n"                                          \
  20                ".section .rodata.str,\"aMS\",@progbits,1\n"    \
  21                "2:     .asciz  \""__FILE__"\"\n"               \
  22                ".previous\n"                                   \
  23                ".section __bug_table,\"a\"\n"                  \
  24                "3:\t"  S390_LONG "\t1b,2b\n"                   \
  25                "       .short  %0,%1\n"                        \
  26                "       .org    3b+%2\n"                        \
  27                ".previous\n"                                   \
  28                : : "i" (__LINE__),                             \
  29                    "i" (x),                                    \
  30                    "i" (sizeof(struct bug_entry)));            \
  31} while (0)
  32
  33#else /* CONFIG_DEBUG_BUGVERBOSE */
  34
  35#define __EMIT_BUG(x) do {                              \
  36        asm volatile(                                   \
  37                "0:     j       0b+2\n"                 \
  38                "1:\n"                                  \
  39                ".section __bug_table,\"a\"\n"          \
  40                "2:\t"  S390_LONG "\t1b\n"              \
  41                "       .short  %0\n"                   \
  42                "       .org    2b+%1\n"                \
  43                ".previous\n"                           \
  44                : : "i" (x),                            \
  45                    "i" (sizeof(struct bug_entry)));    \
  46} while (0)
  47
  48#endif /* CONFIG_DEBUG_BUGVERBOSE */
  49
  50#define BUG()   __EMIT_BUG(0)
  51
  52#define WARN_ON(x) ({                                   \
  53        int __ret_warn_on = !!(x);                      \
  54        if (__builtin_constant_p(__ret_warn_on)) {      \
  55                if (__ret_warn_on)                      \
  56                        __EMIT_BUG(BUGFLAG_WARNING);    \
  57        } else {                                        \
  58                if (unlikely(__ret_warn_on))            \
  59                        __EMIT_BUG(BUGFLAG_WARNING);    \
  60        }                                               \
  61        unlikely(__ret_warn_on);                        \
  62})
  63
  64#define HAVE_ARCH_BUG
  65#define HAVE_ARCH_WARN_ON
  66#endif /* CONFIG_BUG */
  67
  68#include <asm-generic/bug.h>
  69
  70#endif /* _ASM_S390_BUG_H */
  71