| 1 |
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| 2 | #ifndef __ASM_ASM_BUG_H
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| 3 | |
| 4 | * Copyright (C) 2017 ARM Limited
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| 5 |
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| 6 | #define __ASM_ASM_BUG_H
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| 7 |
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| 8 | #include <asm/brk-imm.h>
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| 9 |
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| 10 | #ifdef CONFIG_DEBUG_BUGVERBOSE
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| 11 | #define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
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| 12 | #define __BUGVERBOSE_LOCATION(file, line) \
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| 13 | .pushsection .rodata.str,"aMS",@progbits,1; \
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| 14 | 14472: .string file; \
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| 15 | .popsection; \
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| 16 | \
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| 17 | .long 14472b - .; \
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| 18 | .short line;
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| 19 | #else
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| 20 | #define _BUGVERBOSE_LOCATION(file, line)
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| 21 | #endif
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| 22 |
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| 23 | #ifdef CONFIG_GENERIC_BUG
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| 24 | #define __BUG_ENTRY_START \
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| 25 | .pushsection __bug_table,"aw"; \
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| 26 | .align 2; \
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| 27 | 14470: .long 14471f - .; \
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| 28 |
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| 29 | #define __BUG_ENTRY_END \
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| 30 | .align 2; \
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| 31 | .popsection; \
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| 32 | 14471:
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| 33 |
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| 34 | #define __BUG_ENTRY(flags) \
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| 35 | __BUG_ENTRY_START \
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| 36 | _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
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| 37 | .short flags; \
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| 38 | __BUG_ENTRY_END
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| 39 | #else
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| 40 | #define __BUG_ENTRY(flags)
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| 41 | #endif
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| 42 |
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| 43 | #define ASM_BUG_FLAGS(flags) \
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| 44 | __BUG_ENTRY(flags) \
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| 45 | brk BUG_BRK_IMM
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| 46 |
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| 47 | #define ASM_BUG() ASM_BUG_FLAGS(0)
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| 48 |
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| 49 | #ifdef CONFIG_DEBUG_BUGVERBOSE
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| 50 | #define __BUG_LOCATION_STRING(file, line) \
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| 51 | ".long " file "- .;" \
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| 52 | ".short " line ";"
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| 53 | #else
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| 54 | #define __BUG_LOCATION_STRING(file, line)
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| 55 | #endif
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| 56 |
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| 57 | #define __BUG_ENTRY_STRING(file, line, flags) \
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| 58 | __stringify(__BUG_ENTRY_START) \
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| 59 | __BUG_LOCATION_STRING(file, line) \
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| 60 | ".short " flags ";" \
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| 61 | __stringify(__BUG_ENTRY_END)
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| 62 |
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| 63 | #define ARCH_WARN_ASM(file, line, flags, size) \
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| 64 | __BUG_ENTRY_STRING(file, line, flags) \
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| 65 | __stringify(brk BUG_BRK_IMM)
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| 66 |
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| 67 | #define ARCH_WARN_REACHABLE
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| 68 |
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| 69 | #endif
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