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diff --git a/sys/contrib/dev/acpica/compiler/asluuid.c b/sys/contrib/dev/acpica/compiler/asluuid.c
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+/******************************************************************************
+ *
+ * Module Name: asluuid-- compiler UUID support
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2013, Intel Corp.
+ * 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,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * 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 MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ */
+
+
+#include <contrib/dev/acpica/compiler/aslcompiler.h>
+
+#define _COMPONENT          ACPI_COMPILER
+        ACPI_MODULE_NAME    ("asluuid")
+
+
+/*
+ * UUID support functions.
+ *
+ * This table is used to convert an input UUID ascii string to a 16 byte
+ * buffer and the reverse. The table maps a UUID buffer index 0-15 to
+ * the index within the 36-byte UUID string where the associated 2-byte
+ * hex value can be found.
+ *
+ * 36-byte UUID strings are of the form:
+ *     aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
+ * Where aa-pp are one byte hex numbers, made up of two hex digits
+ *
+ * Note: This table is basically the inverse of the string-to-offset table
+ * found in the ACPI spec in the description of the ToUUID macro.
+ */
+static UINT8    Gbl_MapToUuidOffset[16] =
+{
+    6,4,2,0,11,9,16,14,19,21,24,26,28,30,32,34
+};
+
+#define UUID_BUFFER_LENGTH          16
+#define UUID_STRING_LENGTH          36
+
+/* Positions for required hyphens (dashes) in UUID strings */
+
+#define UUID_HYPHEN1_OFFSET         8
+#define UUID_HYPHEN2_OFFSET         13
+#define UUID_HYPHEN3_OFFSET         18
+#define UUID_HYPHEN4_OFFSET         23
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AuValiduateUuid
+ *
+ * PARAMETERS:  InString            - 36-byte formatted UUID string
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check all 36 characters for correct format
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AuValidateUuid (
+    char                    *InString)
+{
+    UINT32                  i;
+
+
+    if (!InString || (ACPI_STRLEN (InString) != UUID_STRING_LENGTH))
+    {
+        return (AE_BAD_PARAMETER);
+    }
+
+    /* Check all 36 characters for correct format */
+
+    for (i = 0; i < UUID_STRING_LENGTH; i++)
+    {
+        /* Must have 4 hyphens (dashes) in these positions: */
+
+        if ((i == UUID_HYPHEN1_OFFSET) ||
+            (i == UUID_HYPHEN2_OFFSET) ||
+            (i == UUID_HYPHEN3_OFFSET) ||
+            (i == UUID_HYPHEN4_OFFSET))
+        {
+            if (InString[i] != '-')
+            {
+                return (AE_BAD_PARAMETER);
+            }
+        }
+
+        /* All other positions must contain hex digits */
+
+        else
+        {
+            if (!isxdigit ((int) InString[i]))
+            {
+                return (AE_BAD_PARAMETER);
+            }
+        }
+    }
+
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AuConvertStringToUuid
+ *
+ * PARAMETERS:  InString            - 36-byte formatted UUID string
+ *              UuidBuffer          - 16-byte UUID buffer
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert 36-byte formatted UUID string to 16-byte UUID buffer
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AuConvertStringToUuid (
+    char                    *InString,
+    char                    *UuidBuffer)
+{
+    UINT32                  i;
+
+
+    if (!InString || !UuidBuffer)
+    {
+        return (AE_BAD_PARAMETER);
+    }
+
+    for (i = 0; i < UUID_BUFFER_LENGTH; i++)
+    {
+        UuidBuffer[i]  = (char) (UtHexCharToValue (InString[Gbl_MapToUuidOffset[i]]) << 4);
+        UuidBuffer[i] |= (char)  UtHexCharToValue (InString[Gbl_MapToUuidOffset[i] + 1]);
+    }
+
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AuConvertUuidToString
+ *
+ * PARAMETERS:  UuidBuffer          - 16-byte UUID buffer
+ *              OutString           - 36-byte formatted UUID string
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert 16-byte UUID buffer to 36-byte formatted UUID string
+ *              OutString must be 37 bytes to include null terminator.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AuConvertUuidToString (
+    char                    *UuidBuffer,
+    char                    *OutString)
+{
+    UINT32                  i;
+
+
+    if (!UuidBuffer || !OutString)
+    {
+        return (AE_BAD_PARAMETER);
+    }
+
+    for (i = 0; i < UUID_BUFFER_LENGTH; i++)
+    {
+        OutString[Gbl_MapToUuidOffset[i]] =     (UINT8) AslHexLookup[(UuidBuffer[i] >> 4) & 0xF];
+        OutString[Gbl_MapToUuidOffset[i] + 1] = (UINT8) AslHexLookup[UuidBuffer[i] & 0xF];
+    }
+
+    /* Insert required hyphens (dashes) */
+
+    OutString[UUID_HYPHEN1_OFFSET] =
+    OutString[UUID_HYPHEN2_OFFSET] =
+    OutString[UUID_HYPHEN3_OFFSET] =
+    OutString[UUID_HYPHEN4_OFFSET] = '-';
+
+    OutString[UUID_STRING_LENGTH] = 0; /* Null terminate */
+    return (AE_OK);
+}