49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/efi.h>
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#include <asm/efi.h>
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#include <asm/string.h>
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#include "efistub.h"
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#ifdef CONFIG_KASAN
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#undef memcpy
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#undef memmove
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#undef memset
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void *__memcpy(void *__dest, const void *__src, size_t __n) __alias(memcpy);
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void *__memmove(void *__dest, const void *__src, size_t count) __alias(memmove);
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void *__memset(void *s, int c, size_t count) __alias(memset);
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#endif
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void *memcpy(void *dst, const void *src, size_t len)
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{
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efi_bs_call(copy_mem, dst, src, len);
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return dst;
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}
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extern void *memmove(void *dst, const void *src, size_t len) __alias(memcpy);
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void *memset(void *dst, int c, size_t len)
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{
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efi_bs_call(set_mem, dst, len, c & U8_MAX);
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return dst;
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}
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/**
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* memcmp - Compare two areas of memory
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* @cs: One area of memory
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* @ct: Another area of memory
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* @count: The size of the area.
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*/
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#undef memcmp
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int memcmp(const void *cs, const void *ct, size_t count)
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{
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const unsigned char *su1, *su2;
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int res = 0;
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for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
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if ((res = *su1 - *su2) != 0)
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break;
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return res;
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}
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