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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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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
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_S390_BUG_H
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#define _ASM_S390_BUG_H
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#include <linux/compiler.h>
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#ifdef CONFIG_BUG
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#ifdef CONFIG_DEBUG_BUGVERBOSE
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#define __EMIT_BUG(x) do { \
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asm_inline volatile( \
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"0: mc 0,0\n" \
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".section .rodata.str,\"aMS\",@progbits,1\n" \
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"1: .asciz \""__FILE__"\"\n" \
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".previous\n" \
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".section __bug_table,\"awM\",@progbits,%2\n" \
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"2: .long 0b-.\n" \
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" .long 1b-.\n" \
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" .short %0,%1\n" \
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" .org 2b+%2\n" \
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".previous\n" \
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: : "i" (__LINE__), \
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"i" (x), \
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"i" (sizeof(struct bug_entry))); \
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} while (0)
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#else /* CONFIG_DEBUG_BUGVERBOSE */
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#define __EMIT_BUG(x) do { \
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asm_inline volatile( \
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"0: mc 0,0\n" \
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".section __bug_table,\"awM\",@progbits,%1\n" \
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"1: .long 0b-.\n" \
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" .short %0\n" \
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" .org 1b+%1\n" \
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".previous\n" \
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: : "i" (x), \
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"i" (sizeof(struct bug_entry))); \
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} while (0)
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#endif /* CONFIG_DEBUG_BUGVERBOSE */
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#define BUG() do { \
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__EMIT_BUG(0); \
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unreachable(); \
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} while (0)
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#define __WARN_FLAGS(flags) do { \
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__EMIT_BUG(BUGFLAG_WARNING|(flags)); \
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} while (0)
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#define WARN_ON(x) ({ \
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int __ret_warn_on = !!(x); \
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if (__builtin_constant_p(__ret_warn_on)) { \
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if (__ret_warn_on) \
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__WARN(); \
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} else { \
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if (unlikely(__ret_warn_on)) \
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__WARN(); \
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} \
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unlikely(__ret_warn_on); \
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})
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#define HAVE_ARCH_BUG
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#define HAVE_ARCH_WARN_ON
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#endif /* CONFIG_BUG */
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#include <asm-generic/bug.h>
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#endif /* _ASM_S390_BUG_H */
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