From 1eb73ab57aa6d49cd82eb2b3305ec39bba591d1f Mon Sep 17 00:00:00 2001
From: qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 4 Jul 2006 12:43:59 +0000
Subject: Added LibPatchPcdSetPtr. Cleaup Pcd Database code generation routine.
 Fixed a few bugs.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@745 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/DxePcdLib/DxePcdLib.c   | 49 ++++++++++++++++++++++++++++++++++
 MdePkg/Library/DxePcdLib/DxePcdLib.msa | 15 ++++++-----
 2 files changed, 58 insertions(+), 6 deletions(-)

(limited to 'MdePkg/Library/DxePcdLib')

diff --git a/MdePkg/Library/DxePcdLib/DxePcdLib.c b/MdePkg/Library/DxePcdLib/DxePcdLib.c
index b746614d5b..f0b0cbd8f6 100644
--- a/MdePkg/Library/DxePcdLib/DxePcdLib.c
+++ b/MdePkg/Library/DxePcdLib/DxePcdLib.c
@@ -923,3 +923,52 @@ LibPcdGetNextTokenSpace (
   return (GUID *) Guid;
 }
 
+
+/**
+  Sets the PCD entry specified by PatchVariable to the value specified by Buffer 
+  and SizeOfValue.  Buffer is returned.  If SizeOfValue is greater than 
+  MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return 
+  NULL to indicate that the set operation was not actually performed.  
+  If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to 
+  MaximumDatumSize and NULL must be returned.
+  
+  If PatchVariable is NULL, then ASSERT().
+  If SizeOfValue is NULL, then ASSERT().
+  If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
+
+  @param[in] PatchVariable      A pointer to the global variable in a module that is 
+                                the target of the set operation.
+  @param[in] MaximumDatumSize   The maximum size allowed for the PCD entry specified by PatchVariable.
+  @param[in, out] SizeOfBuffer  A pointer to the size, in bytes, of Buffer.
+  @param[in] Buffer             A pointer to the buffer to used to set the target variable.
+
+**/
+VOID *
+EFIAPI
+LibPatchPcdSetPtr (
+  IN        VOID        *PatchVariable,
+  IN        UINTN       MaximumDatumSize,
+  IN OUT    UINTN       *SizeOfBuffer,
+  IN CONST  VOID        *Buffer
+  )
+{
+  ASSERT (PatchVariable != NULL);
+  ASSERT (SizeOfBuffer  != NULL);
+  
+  if (*SizeOfBuffer > 0) {
+    ASSERT (Buffer != NULL);
+  }
+
+  if ((*SizeOfBuffer > MaximumDatumSize) ||
+      (*SizeOfBuffer == MAX_ADDRESS)) {
+    *SizeOfBuffer = MaximumDatumSize;
+    return NULL;
+  }
+    
+  CopyMem (PatchVariable, Buffer, *SizeOfBuffer);
+  
+  return (VOID *) Buffer;
+}
+
+
+
diff --git a/MdePkg/Library/DxePcdLib/DxePcdLib.msa b/MdePkg/Library/DxePcdLib/DxePcdLib.msa
index c250fbeb3a..c50ac45220 100644
--- a/MdePkg/Library/DxePcdLib/DxePcdLib.msa
+++ b/MdePkg/Library/DxePcdLib/DxePcdLib.msa
@@ -8,11 +8,11 @@
     <Abstract>IO Library implemented with Framework CPU IO Protocol</Abstract>
     <Description>FIX ME!</Description>
     <Copyright>Copyright (c) 2004-2006, Intel Corporation</Copyright>
-    <License>All rights reserved. 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,
+    <License>All rights reserved. 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.</License>
     <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION   0x00000052</Specification>
   </MsaHeader>
@@ -31,6 +31,9 @@
     <LibraryClass Usage="ALWAYS_CONSUMED">
       <Keyword>UefiBootServicesTableLib</Keyword>
     </LibraryClass>
+    <LibraryClass Usage="ALWAYS_CONSUMED">
+      <Keyword>BaseMemoryLib</Keyword>
+    </LibraryClass>
   </LibraryClassDefinitions>
   <SourceFiles>
     <Filename>DxePcdLib.c</Filename>
@@ -50,4 +53,4 @@
       <Constructor>PcdLibConstructor</Constructor>
     </Extern>
   </Externs>
-</ModuleSurfaceArea>
\ No newline at end of file
+</ModuleSurfaceArea>
-- 
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