/** @file\r
- Tiano PE/COFF loader.\r
+ 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 - 2007, Intel Corporation<BR>\r
+ Copyright (c) 2006 - 2008, 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
which accompanies this distribution. The full text of the license may be found at\r
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: PeCoffGetEntryPoint.c\r
-\r
**/\r
\r
\r
+#include <Base.h>\r
+\r
+#include <Library/PeCoffGetEntryPointLib.h>\r
+#include <Library/DebugLib.h>\r
+\r
+#include <IndustryStandard/PeImage.h>\r
\r
/**\r
Retrieves and returns a pointer to the entry point to a PE/COFF image that has been loaded\r
OUT VOID **EntryPoint\r
)\r
{\r
- EFI_IMAGE_DOS_HEADER *DosHeader;\r
- EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Header;\r
+ EFI_IMAGE_DOS_HEADER *DosHdr;\r
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
\r
ASSERT (Pe32Data != NULL);\r
ASSERT (EntryPoint != NULL);\r
\r
- DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
- if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\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
- Header.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHeader->e_lfanew) & 0x0ffff));\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
- Header.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r
}\r
\r
//\r
- // Calculate the entry point relative to the start of the image. \r
+ // Calculate the entry point relative to the start of the image.\r
// AddressOfEntryPoint is common for PE32 & PE32+\r
//\r
- *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Header.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));\r
- return RETURN_SUCCESS;\r
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+ *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize);\r
+ return RETURN_SUCCESS;\r
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
+ *EntryPoint = (VOID *)((UINTN)Pe32Data + (UINTN)(Hdr.Pe32->OptionalHeader.AddressOfEntryPoint & 0x0ffffffff));\r
+ return RETURN_SUCCESS;\r
+ }\r
+\r
+ return RETURN_UNSUPPORTED;\r
}\r
\r
\r
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
EFI_IMAGE_DOS_HEADER *DosHdr;\r
\r
- DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
+ ASSERT (Pe32Data != NULL);\r
+\r
+ DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data + DosHdr->e_lfanew);\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
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)Pe32Data);\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.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+ return Hdr.Te->Machine;\r
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
return Hdr.Pe32->FileHeader.Machine;\r
}\r
\r
\r
/**\r
Returns a pointer to the PDB file name for a PE/COFF image that has been\r
- loaded into system memory with the PE/COFF Loader Library functions. \r
+ loaded into system memory with the PE/COFF Loader Library functions.\r
\r
Returns the PDB file name for the PE/COFF image specified by Pe32Data. If\r
the PE/COFF image specified by Pe32Data is not a valid, then NULL is\r
IN VOID *Pe32Data\r
)\r
{\r
- EFI_IMAGE_DOS_HEADER *DosHeader;\r
+ EFI_IMAGE_DOS_HEADER *DosHdr;\r
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r
EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r
VOID *CodeViewEntryPointer;\r
INTN TEImageAdjust;\r
UINT32 NumberOfRvaAndSizes;\r
- \r
+ UINT16 Magic;\r
+\r
ASSERT (Pe32Data != NULL);\r
\r
TEImageAdjust = 0;\r
DebugEntry = NULL;\r
NumberOfRvaAndSizes = 0;\r
\r
- DosHeader = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r
- if (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\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) ((DosHeader->e_lfanew) & 0x0ffff));\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
TEImageAdjust);\r
}\r
} else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
- if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
- // \r
+ //\r
+ // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.\r
+ // It is due to backward-compatibility, for some system might\r
+ // generate PE32+ image with PE32 Magic.\r
+ //\r
+ switch (Hdr.Pe32->FileHeader.Machine) {\r
+ case EFI_IMAGE_MACHINE_IA32:\r
+ //\r
+ // Assume PE32 image with IA32 Machine field.\r
+ //\r
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r
+ break;\r
+ case EFI_IMAGE_MACHINE_X64:\r
+ case EFI_IMAGE_MACHINE_IPF:\r
+ //\r
+ // Assume PE32+ image with X64 or IPF Machine field\r
+ //\r
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r
+ break;\r
+ default:\r
+ //\r
+ // For unknow Machine field, use Magic in optional Header\r
+ //\r
+ Magic = Hdr.Pe32->OptionalHeader.Magic;\r
+ }\r
+\r
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
// Use PE32 offset get Debug Directory Entry\r
//\r
NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);\r
} else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r
- // \r
+ //\r
// Use PE32+ offset get Debug Directory Entry\r
//\r
NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
return NULL;\r
}\r
\r
- for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount++, DebugEntry++) {\r
+ //\r
+ // Scan the directory to find the debug entry.\r
+ // \r
+ for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {\r
if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r
if (DebugEntry->SizeOfData > 0) {\r
CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);\r
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