BaseTools/Build: Add SDL support

1.BaseTool add ATTRIBUTE (+/-RT, RO) support in PCD declaration in DSC file
2.BaseTool collect valid PCD value in DEC file and generate data base for runtime sanity check
3.BaseTool support SetPcd error.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Bob Feng" <bob.c.feng@intel.com>
Reviewed-by: "Chen, Hesheng" <hesheng.chen@intel.com>
Reviewed-by: "Liu, Yingke D" <yingke.d.liu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17158 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/Python/Common/VariableAttributes.py

@@ -0,0 +1,57 @@
+# # @file
+# 
+# This file is used to handle the variable attributes and property information
+#
+#
+# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution.  The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+   
+class VariableAttributes(object):
+    EFI_VARIABLE_NON_VOLATILE = 0x00000001
+    EFI_VARIABLE_BOOTSERVICE_ACCESS = 0x00000002
+    EFI_VARIABLE_RUNTIME_ACCESS = 0x00000004
+    VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY = 0x00000001
+    VarAttributesMap = {
+                     "NV":EFI_VARIABLE_NON_VOLATILE,
+                     "BS":EFI_VARIABLE_BOOTSERVICE_ACCESS,
+                     "RT":EFI_VARIABLE_RUNTIME_ACCESS,
+                     "RO":VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY
+                     }
+    
+    def __init__(self):
+        pass
+    
+    @staticmethod
+    def GetVarAttributes(var_attr_str):
+        VarAttr = 0x00000000
+        VarProp = 0x00000000
+        
+        attr_list = var_attr_str.split(",")
+        for attr in attr_list:
+            attr = attr.strip()
+            if attr == 'RO':
+                VarProp = VariableAttributes.VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY
+            else:
+                VarAttr = VarAttr | VariableAttributes.VarAttributesMap.get(attr, 0x00000000)   
+        return VarAttr, VarProp
+    @staticmethod
+    def ValidateVarAttributes(var_attr_str):
+        if not var_attr_str:
+            return True, ""
+        attr_list = var_attr_str.split(",")
+        attr_temp = []
+        for attr in attr_list:
+            attr = attr.strip()
+            attr_temp.append(attr)
+            if attr not in VariableAttributes.VarAttributesMap:
+                return False, "The variable attribute %s is not support to be specified in dsc file. Supported variable attribute are ['BS','NV','RT','RO'] "
+        if 'RT' in attr_temp and 'BS' not in attr_temp:
+            return False, "the RT attribute need the BS attribute to be present"
+        return True, ""