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69505e3d9a
With CONFIG_GENERIC_BUG_RELATIVE_POINTERS, the addr/file relative pointers are calculated weirdly: based on the beginning of the bug_entry struct address, rather than their respective pointer addresses. Make the relative pointers less surprising to both humans and tools by calculating them the normal way. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Sven Schnelle <svens@linux.ibm.com> # s390 Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Acked-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64] Link: https://lkml.kernel.org/r/f0e05be797a16f4fc2401eeb88c8450dcbe61df6.1652362951.git.jpoimboe@kernel.org
44 lines
935 B
C
44 lines
935 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ASM_ASM_BUG_H
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/*
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* Copyright (C) 2017 ARM Limited
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*/
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#define __ASM_ASM_BUG_H
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#include <asm/brk-imm.h>
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#ifdef CONFIG_DEBUG_BUGVERBOSE
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#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
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#define __BUGVERBOSE_LOCATION(file, line) \
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.pushsection .rodata.str,"aMS",@progbits,1; \
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14472: .string file; \
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.popsection; \
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\
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.long 14472b - .; \
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.short line;
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#else
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#define _BUGVERBOSE_LOCATION(file, line)
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#endif
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#ifdef CONFIG_GENERIC_BUG
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#define __BUG_ENTRY(flags) \
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.pushsection __bug_table,"aw"; \
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.align 2; \
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14470: .long 14471f - .; \
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_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
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.short flags; \
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.popsection; \
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14471:
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#else
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#define __BUG_ENTRY(flags)
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#endif
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#define ASM_BUG_FLAGS(flags) \
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__BUG_ENTRY(flags) \
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brk BUG_BRK_IMM
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#define ASM_BUG() ASM_BUG_FLAGS(0)
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#endif /* __ASM_ASM_BUG_H */
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