Add runtime safe PCI Express Library instance

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLib / ScanMem32Wrapper.c

diff --git a/MdePkg/Library/BaseMemoryLib/ScanMem32Wrapper.c b/MdePkg/Library/BaseMemoryLib/ScanMem32Wrapper.c
index 8de55945ce148e193b42a754fbf1199053d07262..28a8342f7f145cce3056d62128d28e08330cbbc4 100644 (file)
--- a/MdePkg/Library/BaseMemoryLib/ScanMem32Wrapper.c
+++ b/MdePkg/Library/BaseMemoryLib/ScanMem32Wrapper.c
@@ -1,6 +1,16 @@
 /** @file\r
   ScanMem32() implementation.\r
 \r
+  The following BaseMemoryLib instances contain the same copy of this file:\r
+    BaseMemoryLib\r
+    BaseMemoryLibMmx\r
+    BaseMemoryLibSse2\r
+    BaseMemoryLibRepStr\r
+    BaseMemoryLibOptDxe\r
+    BaseMemoryLibOptPei\r
+    PeiMemoryLib\r
+    DxeMemoryLib\r
+\r
   Copyright (c) 2006, Intel Corporation<BR>\r
   All rights reserved. This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
@@ -10,18 +20,10 @@
   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 \r
-  Module Name:  ScanMem32Wrapper.c\r
+**/\r
 \r
-  The following BaseMemoryLib instances share the same version of this file:\r
 \r
-    BaseMemoryLib\r
-    BaseMemoryLibMmx\r
-    BaseMemoryLibSse2\r
-    BaseMemoryLibRepStr\r
-    PeiMemoryLib\r
-    UefiMemoryLib\r
 \r
-**/\r
 \r
 #include "MemLibInternals.h"\r
 \r
@@ -35,7 +37,8 @@
   then NULL is returned.  If Length is 0, then NULL is returned.\r
   If Length > 0 and Buffer is NULL, then ASSERT().\r
   If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
-  If Length is greater than (MAX_ADDRESS \96 Buffer + 1), then ASSERT(). \r
+  If Length is not aligned on a 32-bit boundary, then ASSERT().\r
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). \r
 \r
   @param  Buffer      Pointer to the target buffer to scan.\r
   @param  Length      Number of bytes in Buffer to scan.\r
@@ -47,9 +50,9 @@
 VOID *\r
 EFIAPI\r
 ScanMem32 (\r
-  IN      CONST VOID                *Buffer,\r
-  IN      UINTN                     Length,\r
-  IN      UINT32                    Value\r
+  IN CONST VOID  *Buffer,\r
+  IN UINTN       Length,\r
+  IN UINT32      Value\r
   )\r
 {\r
   if (Length == 0) {\r
@@ -59,6 +62,7 @@ ScanMem32 (
   ASSERT (Buffer != NULL);\r
   ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);\r
   ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));\r
+  ASSERT ((Length & (sizeof (Value) - 1)) == 0);\r
 \r
   return (VOID*)InternalMemScanMem32 (Buffer, Length / sizeof (Value), Value);\r
 }\r