code: 9ferno

ref: e81c54ba2ecc673a4d5f8aed0e9b52841fe07b0d
dir: /os/boot.original/pc/getcallerpc.c/

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#include "u.h"
#include "lib.h"

ulong
getcallerpc(void *x)
{
	return (((ulong*)(x))[-1]);
}