Add type-cast to fix build break for IA32 arch

[mirror_edk2.git] / MdePkg / Library / BasePeCoffGetEntryPointLib / PeCoffGetEntryPoint.c

diff --git a/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c b/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
index 8a27a7cb26436419c9fdabe6b1cdf11ecb3b40d0..a3c117feb33bf22b5e60f09706b4058f7951f1a5 100644 (file)
--- a/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
+++ b/MdePkg/Library/BasePeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
@@ -2,8 +2,8 @@
   Provides the services to get the entry point to a PE/COFF image that has either been \r
   loaded into memory or is executing at it's linked address.\r
 \r
-  Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
-  Portions Copyright (c) 2008-2009 Apple Inc.<BR>
+  Copyright (c) 2006 - 2010, Intel Corporation<BR>\r
+  Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<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
   which accompanies this distribution.  The full text of the license may be found at\r
@@ -256,8 +256,8 @@ PeCoffLoaderGetPdbPointer (
           return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));\r
         case CODEVIEW_SIGNATURE_RSDS:\r
           return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));\r
-        case CODEVIEW_SIGNATURE_MTOC:
-          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));
+        case CODEVIEW_SIGNATURE_MTOC:\r
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));\r
         default:\r
           break;\r
         }\r
@@ -268,4 +268,51 @@ PeCoffLoaderGetPdbPointer (
   return NULL;\r
 }\r
 \r
+/**\r
+  Returns the size of the PE/COFF headers\r
+\r
+  Returns the size of the PE/COFF header specified by Pe32Data.\r
+  If Pe32Data is NULL, then ASSERT().\r
+\r
+  @param  Pe32Data   Pointer to the PE/COFF image that is loaded in system\r
+                     memory.\r
+\r
+  @return Size of PE/COFF header in bytes or zero if not a valid iamge.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+PeCoffGetSizeOfHeaders (\r
+  IN VOID     *Pe32Data\r
+  )\r
+{\r
+  EFI_IMAGE_DOS_HEADER                  *DosHdr;\r
+  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr;\r
+  UINTN                                 SizeOfHeaders;\r
+\r
+  ASSERT (Pe32Data   != NULL);\r
+ \r
+  DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
+  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
+    //\r
+    // DOS image header is present, so read the PE header after the DOS image header.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r
+  } else {\r
+    //\r
+    // DOS image header is not present, so PE header is at the image base.\r
+    //\r
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r
+  }\r
+\r
+  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+   SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;\r
+  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
+    SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;\r
+  } else {\r
+    SizeOfHeaders = 0;\r
+  }\r
+\r
+  return (UINT32) SizeOfHeaders;\r
+}\r
 \r