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fd2e9f8200
The current custom implementation of offsetof() fails UBSAN: runtime error: member access within null pointer of type 'struct ...' This means that all its users, including container_of(), free() and realloc(), fail. Use __builtin_offsetof() instead which does not have this issue and has been available since GCC 4 and clang 3. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://patch.msgid.link/20260401-nolibc-asprintf-v1-1-46292313439f@weissschuh.net
25 lines
477 B
C
25 lines
477 B
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* Stddef definitions for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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*/
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/* make sure to include all global symbols */
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#include "nolibc.h"
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#ifndef _NOLIBC_STDDEF_H
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#define _NOLIBC_STDDEF_H
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#include "stdint.h"
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/* note: may already be defined */
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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#ifndef offsetof
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#define offsetof(TYPE, FIELD) __builtin_offsetof(TYPE, FIELD)
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#endif
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#endif /* _NOLIBC_STDDEF_H */
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