diff --git a/lib/libthr/arch/mips/include/pthread_md.h b/lib/libthr/arch/mips/include/pthread_md.h
new file mode 100644
index 000000000000..34e58c676c4c
--- /dev/null
+++ b/lib/libthr/arch/mips/include/pthread_md.h
@@ -0,0 +1,85 @@
+/*-
+ * Copyright (c) 2005 David Xu <davidxu@freebsd.org>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * from: src/lib/libthr/arch/arm/include/pthread_md.h,v 1.3 2005/10/29 13:40:31 davidxu
+ * $FreeBSD$
+ */
+
+/*
+ * Machine-dependent thread prototypes/definitions.
+ */
+#ifndef _PTHREAD_MD_H_
+#define	_PTHREAD_MD_H_
+
+#include <sys/types.h>
+#include <machine/sysarch.h>
+#include <stddef.h>
+
+#define	CPU_SPINWAIT
+#define	DTV_OFFSET		offsetof(struct tcb, tcb_dtv)
+
+/*
+ * Variant II tcb, first two members are required by rtld.
+ */
+struct tcb {
+	struct tcb		*tcb_self;	/* required by rtld */
+	void			*tcb_dtv;	/* required by rtld */
+	struct pthread		*tcb_thread;	/* our hook */
+	void			*tcb_spare[1];
+};
+
+/*
+ * The tcb constructors.
+ */
+struct tcb	*_tcb_ctor(struct pthread *, int);
+void		_tcb_dtor(struct tcb *);
+
+/* Called from the thread to set its private data. */
+static __inline void
+_tcb_set(struct tcb *tcb)
+{
+	mips_tcb_set(tcb);
+}
+
+/*
+ * Get the current tcb.
+ */
+static __inline struct tcb *
+_tcb_get(void)
+{
+	return (mips_tcb_get());
+}
+
+extern struct pthread *_thr_initial;
+
+static __inline struct pthread *
+_get_curthread(void)
+{
+	if (_thr_initial)
+		return (_tcb_get()->tcb_thread);
+	return (NULL);
+}
+
+#endif /* _PTHREAD_MD_H_ */
diff --git a/lib/libthr/arch/mips/mips/pthread_md.c b/lib/libthr/arch/mips/mips/pthread_md.c
new file mode 100644
index 000000000000..53ac5971da1a
--- /dev/null
+++ b/lib/libthr/arch/mips/mips/pthread_md.c
@@ -0,0 +1,56 @@
+/*-
+ * Copyright (C) 2005 David Xu <davidxu@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Neither the name of the author nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from: src/lib/libthr/arch/arm/arm/pthread_md.c,v 1.2 2005/10/29 13:40:31 davidxu
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <rtld_tls.h>
+#include <strings.h>
+
+#include "pthread_md.h"
+
+struct tcb *
+_tcb_ctor(struct pthread *thread, int initial)
+{
+	struct tcb *tcb;
+
+	tcb = malloc(sizeof(struct tcb));
+	if (tcb) {
+		bzero(tcb, sizeof(struct tcb));
+		tcb->tcb_thread = thread;
+	}
+	return (tcb);
+}
+
+void
+_tcb_dtor(struct tcb *tcb)
+{
+	free(tcb);
+}