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#include <u.h>
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#include <libc.h>
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char*
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strdup(char *s)
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{
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	char *ns;
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	ns = malloc(strlen(s) + 1);
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	if(ns == 0)
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		return 0;
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	setmalloctag(ns, getcallerpc(&s));
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	return strcpy(ns, s);
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}