Move dynamic mutex pool to separate file

This avoids false link-time dependencies.

libbsd.py

@@ -252,6 +252,7 @@ class rtems(builder.Module):
                 'rtems/rtems-kernel-jail.c',
                 'rtems/rtems-kernel-malloc.c',
                 'rtems/rtems-kernel-mbuf.c',
+                'rtems/rtems-kernel-mtxpool.c',
                 'rtems/rtems-kernel-mutex.c',
                 'rtems/rtems-kernel-muteximpl.c',
                 'rtems/rtems-kernel-nexus.c',

rtemsbsd/rtems/rtems-kernel-mtxpool.c

@@ -0,0 +1,52 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2001 Matthew Dillon.  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 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 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.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/systm.h>
+
+/* Pool sizes must be a power of two */
+#ifndef MTX_POOL_SLEEP_SIZE
+#define MTX_POOL_SLEEP_SIZE		128
+#endif
+
+struct mtx_pool *mtxpool_sleep;
+
+static void
+mtx_pool_setup_dynamic(void *dummy __unused)
+{
+	mtxpool_sleep = mtx_pool_create("sleep mtxpool",
+	    MTX_POOL_SLEEP_SIZE, MTX_DEF);
+}
+
+SYSINIT(mtxpooli2, SI_SUB_MTX_POOL_DYNAMIC, SI_ORDER_FIRST,
+    mtx_pool_setup_dynamic, NULL);