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mips: Kconfig: Add ARCH_HAS_FORTIFY_SOURCE

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FORTIFY_SOURCE detects various overflows at compile and run time.
(6974f0c455 ("include/linux/string.h:
add the option of fortified string.h functions)

ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and
run with CONFIG_FORTIFY_SOURCE.

Since mips can be built and run with that flag,
select ARCH_HAS_FORTIFY_SOURCE as default.

Signed-off-by: Dmitry Korotin <dkorotin@wavecomp.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
This commit is contained in:
Dmitry Korotin
2019-09-12 22:53:45 +00:00
committed by Paul Burton
parent ffe59ee36a
commit a2ecb233e3
2 changed files with 3 additions and 0 deletions
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2
arch/mips/include/asm/string.h
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@@ -10,6 +10,7 @@
#ifndef _ASM_STRING_H
#define _ASM_STRING_H
#if !defined(__OPTIMIZE__) || !defined(CONFIG_FORTIFY_SOURCE)
/*
* Most of the inline functions are rather naive implementations so I just
@@ -130,6 +131,7 @@ strncmp(__const__ char *__cs, __const__ char *__ct, size_t __count)
return __res;
}
#endif /* CONFIG_32BIT */
#endif /* !defined(__OPTIMIZE__) || !defined(CONFIG_FORTIFY_SOURCE) */
#define __HAVE_ARCH_MEMSET
extern void *memset(void *__s, int __c, size_t __count);