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9530141455
FORTIFY_SOURCE could detect various overflows at compile and run time.
ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and
run with CONFIG_FORTIFY_SOURCE. Select it in RISCV.
See more about this feature from commit 6974f0c455
("include/linux/string.h: add the option of fortified string.h functions").
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2013 Regents of the University of California
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*/
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#ifndef _ASM_RISCV_STRING_H
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#define _ASM_RISCV_STRING_H
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#include <linux/types.h>
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#include <linux/linkage.h>
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#define __HAVE_ARCH_MEMSET
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extern asmlinkage void *memset(void *, int, size_t);
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extern asmlinkage void *__memset(void *, int, size_t);
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#define __HAVE_ARCH_MEMCPY
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extern asmlinkage void *memcpy(void *, const void *, size_t);
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extern asmlinkage void *__memcpy(void *, const void *, size_t);
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#define __HAVE_ARCH_MEMMOVE
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extern asmlinkage void *memmove(void *, const void *, size_t);
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extern asmlinkage void *__memmove(void *, const void *, size_t);
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/* For those files which don't want to check by kasan. */
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#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
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#define memcpy(dst, src, len) __memcpy(dst, src, len)
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#define memset(s, c, n) __memset(s, c, n)
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#define memmove(dst, src, len) __memmove(dst, src, len)
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#ifndef __NO_FORTIFY
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#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
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#endif
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#endif
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#endif /* _ASM_RISCV_STRING_H */
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