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a21cdb8437
Will need them in pie code soon. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
51 lines
952 B
C
51 lines
952 B
C
#ifndef __CR_ASM_GENERIC_STRING_H__
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#define __CR_ASM_GENERIC_STRING_H__
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#include "compiler.h"
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#ifndef HAS_BUILTIN_MEMCPY
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static always_inline void *builtin_memcpy(void *to, const void *from, unsigned int n)
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{
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int i;
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unsigned char *cto = to;
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const unsigned char *cfrom = from;
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for (i = 0; i < n; ++i, ++cto, ++cfrom) {
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*cto = *cfrom;
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}
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return to;
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}
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#endif
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#ifndef HAS_BUILTIN_MEMCMP
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static always_inline int builtin_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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#endif
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#ifndef HAS_BUILTIN_STRCMP
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static always_inline int builtin_strcmp(const char *cs, const char *ct)
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{
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unsigned char c1, c2;
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while (1) {
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c1 = *cs++;
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c2 = *ct++;
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if (c1 != c2)
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return c1 < c2 ? -1 : 1;
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if (!c1)
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break;
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}
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return 0;
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}
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#endif
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#endif /* __CR_ASM_GENERIC_STRING_H__ */
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