tools/include/asm/bug.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _TOOLS_ASM_BUG_H
   3 #define _TOOLS_ASM_BUG_H
   4
   5 #include <linux/compiler.h>
   6
   7 #define __WARN_printf(arg...)   do { fprintf(stderr, arg); } while (0)
   8
   9 #define WARN(condition, format...) ({           \
  10         int __ret_warn_on = !!(condition);      \
  11         if (unlikely(__ret_warn_on))            \
  12                 __WARN_printf(format);          \
  13         unlikely(__ret_warn_on);                \
  14 })
  15
  16 #define WARN_ON(condition) ({                                   \
  17         int __ret_warn_on = !!(condition);                      \
  18         if (unlikely(__ret_warn_on))                            \
  19                 __WARN_printf("assertion failed at %s:%d\n",    \
  20                                 __FILE__, __LINE__);            \
  21         unlikely(__ret_warn_on);                                \
  22 })
  23
  24 #define WARN_ON_ONCE(condition) ({                      \
  25         static int __warned;                            \
  26         int __ret_warn_once = !!(condition);            \
  27                                                         \
  28         if (unlikely(__ret_warn_once && !__warned)) {   \
  29                 __warned = true;                        \
  30                 WARN_ON(1);                             \
  31         }                                               \
  32         unlikely(__ret_warn_once);                      \
  33 })
  34
  35 #define WARN_ONCE(condition, format...) ({      \
  36         static int __warned;                    \
  37         int __ret_warn_once = !!(condition);    \
  38                                                 \
  39         if (unlikely(__ret_warn_once))          \
  40                 if (WARN(!__warned, format))    \
  41                         __warned = 1;           \
  42         unlikely(__ret_warn_once);              \
  43 })
  44
  45 #endif /* _TOOLS_ASM_BUG_H */