arch/arm64/include/asm/asm-bug.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef __ASM_ASM_BUG_H
   3 /*
   4  * Copyright (C) 2017  ARM Limited
   5  */
   6 #define __ASM_ASM_BUG_H
   7
   8 #include <asm/brk-imm.h>
   9
  10 #ifdef CONFIG_DEBUG_BUGVERBOSE
  11 #define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
  12 #define __BUGVERBOSE_LOCATION(file, line)                       \
  13                 .pushsection .rodata.str,"aMS",@progbits,1;     \
  14         14472:  .string file;                                   \
  15                 .popsection;                                    \
  16                                                                 \
  17                 .long 14472b - .;                               \
  18                 .short line;
  19 #else
  20 #define _BUGVERBOSE_LOCATION(file, line)
  21 #endif
  22
  23 #ifdef CONFIG_GENERIC_BUG
  24
  25 #define __BUG_ENTRY(flags)                              \
  26                 .pushsection __bug_table,"aw";          \
  27                 .align 2;                               \
  28         14470:  .long 14471f - .;                       \
  29 _BUGVERBOSE_LOCATION(__FILE__, __LINE__)                \
  30                 .short flags;                           \
  31                 .align 2;                               \
  32                 .popsection;                            \
  33         14471:
  34 #else
  35 #define __BUG_ENTRY(flags)
  36 #endif
  37
  38 #define ASM_BUG_FLAGS(flags)                            \
  39         __BUG_ENTRY(flags)                              \
  40         brk     BUG_BRK_IMM
  41
  42 #define ASM_BUG()       ASM_BUG_FLAGS(0)
  43
  44 #endif /* __ASM_ASM_BUG_H */