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diff --git a/nuttx/mm/umm_initialize.c b/nuttx/mm/umm_initialize.c
new file mode 100644
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+/************************************************************************
+ * mm/umm_initialize.c
+ *
+ *   Copyright (C) 2013-2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ * 3. Neither the name NuttX 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ************************************************************************/
+
+/************************************************************************
+ * Included Files
+ ************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/mm.h>
+
+#ifdef CONFIG_MM_USER_HEAP
+
+/************************************************************************
+ * Pre-processor definition
+ ************************************************************************/
+
+/************************************************************************
+ * Private Types
+ ************************************************************************/
+
+/************************************************************************
+ * Public Data
+ ************************************************************************/
+
+/* This is the user heap */
+
+struct mm_heap_s g_mmheap;
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: umm_initialize
+ *
+ * Description:
+ *   This is a simple wrapper for the mm_initialize() function.  This
+ *   function is exported from the user-space blob so that the kernel
+ *   can initialize the user-mode allocator.
+ *
+ * Parameters:
+ *   heap_start - Address of the beginning of the (initial) memory region
+ *   heap_size  - The size (in bytes) if the (initial) memory region.
+ *
+ * Return Value:
+ *   None
+ *
+ ************************************************************************/
+
+void umm_initialize(FAR void *heap_start, size_t heap_size)
+{
+  mm_initialize(&g_mmheap, heap_start, heap_size);
+}
+
+#endif /* CONFIG_MM_USER_HEAP */