/** @file\r
- Tiano PE/COFF loader.\r
+ Base PE/COFF loader supports loading any PE32/PE32+ or TE image, but\r
+ only supports relocating IA32, x64, IPF, ARM, RISC-V and EBC images.\r
\r
- Copyright (c) 2006, Intel Corporation\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
- http://opensource.org/licenses/bsd-license.php\r
+ Caution: This file requires additional review when modified.\r
+ This library will have external input - PE/COFF image.\r
+ This external input must be validated carefully to avoid security issue like\r
+ buffer overflow, integer overflow.\r
\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
+ The basic guideline is that caller need provide ImageContext->ImageRead () with the\r
+ necessary data range check, to make sure when this library reads PE/COFF image, the\r
+ PE image buffer is always in valid range.\r
+ This library will also do some additional check for PE header fields.\r
\r
- Module Name: PeCoffLoader.c\r
+ PeCoffLoaderGetPeHeader() routine will do basic check for PE/COFF header.\r
+ PeCoffLoaderGetImageInfo() routine will do basic check for whole PE/COFF image.\r
\r
-**/\r
-\r
-\r
-\r
-\r
-STATIC\r
-RETURN_STATUS\r
-PeCoffLoaderGetPeHeader (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- OUT EFI_IMAGE_NT_HEADERS *PeHdr,\r
- OUT EFI_TE_IMAGE_HEADER *TeHdr\r
- );\r
+ Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
+ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+ Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
-STATIC\r
-RETURN_STATUS\r
-PeCoffLoaderCheckImageType (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN EFI_IMAGE_NT_HEADERS *PeHdr,\r
- IN EFI_TE_IMAGE_HEADER *TeHdr\r
- );\r
+**/\r
\r
-STATIC\r
-VOID *\r
-PeCoffLoaderImageAddress (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN UINTN Address\r
- );\r
+#include "BasePeCoffLibInternals.h"\r
\r
-RETURN_STATUS\r
-PeCoffLoaderRelocateImageEx (\r
- IN UINT16 *Reloc,\r
- IN OUT CHAR8 *Fixup,\r
- IN OUT CHAR8 **FixupData,\r
- IN UINT64 Adjust\r
- );\r
+/**\r
+ Adjust some fields in section header for TE image.\r
\r
+ @param SectionHeader Pointer to the section header.\r
+ @param TeStrippedOffset Size adjust for the TE image.\r
\r
+**/\r
+VOID\r
+PeCoffLoaderAdjustOffsetForTeImage (\r
+ EFI_IMAGE_SECTION_HEADER *SectionHeader,\r
+ UINT32 TeStrippedOffset\r
+ )\r
+{\r
+ SectionHeader->VirtualAddress -= TeStrippedOffset;\r
+ SectionHeader->PointerToRawData -= TeStrippedOffset;\r
+}\r
\r
/**\r
Retrieves the PE or TE Header from a PE/COFF or TE image.\r
\r
- @param ImageContext The context of the image being loaded.\r
- \r
- @param PeHdr The buffer in which to return the PE header.\r
- \r
- @param TeHdr The buffer in which to return the TE header.\r
+ Caution: This function may receive untrusted input.\r
+ PE/COFF image is external input, so this routine will\r
+ also done many checks in PE image to make sure PE image DosHeader, PeOptionHeader,\r
+ SizeOfHeader, Section Data Region and Security Data Region be in PE image range.\r
+\r
+ @param ImageContext The context of the image being loaded.\r
+ @param Hdr The buffer in which to return the PE32, PE32+, or TE header.\r
\r
- @return\r
- RETURN_SUCCESS if the PE or TE Header is read,\r
- Otherwise, the error status from reading the PE/COFF or TE image using the ImageRead function.\r
+ @retval RETURN_SUCCESS The PE or TE Header is read.\r
+ @retval Other The error status from reading the PE/COFF or TE image using the ImageRead function.\r
\r
**/\r
-STATIC\r
RETURN_STATUS\r
PeCoffLoaderGetPeHeader (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- OUT EFI_IMAGE_NT_HEADERS *PeHdr,\r
- OUT EFI_TE_IMAGE_HEADER *TeHdr\r
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
+ OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr\r
)\r
{\r
- RETURN_STATUS Status;\r
- EFI_IMAGE_DOS_HEADER DosHdr;\r
- UINTN Size;\r
+ RETURN_STATUS Status;\r
+ EFI_IMAGE_DOS_HEADER DosHdr;\r
+ UINTN Size;\r
+ UINTN ReadSize;\r
+ UINT32 SectionHeaderOffset;\r
+ UINT32 Index;\r
+ UINT32 HeaderWithoutDataDir;\r
+ CHAR8 BufferData;\r
+ UINTN NumberOfSections;\r
+ EFI_IMAGE_SECTION_HEADER SectionHeader;\r
\r
- ImageContext->IsTeImage = FALSE;\r
//\r
- // Read the DOS image headers\r
+ // Read the DOS image header to check for its existence\r
//\r
- Size = sizeof (EFI_IMAGE_DOS_HEADER);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- 0,\r
- &Size,\r
- &DosHdr\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_DOS_HEADER);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ 0,\r
+ &Size,\r
+ &DosHdr\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
\r
ImageContext->PeCoffHeaderOffset = 0;\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
+ // DOS image header is present, so read the PE header after the DOS image\r
+ // header\r
//\r
ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;\r
}\r
+\r
//\r
- // Read the PE/COFF Header\r
+ // Read the PE/COFF Header. For PE32 (32-bit) this will read in too much\r
+ // data, but that should not hurt anything. Hdr.Pe32->OptionalHeader.Magic\r
+ // determines if this is a PE32 or PE32+ image. The magic is in the same\r
+ // location in both images.\r
//\r
- Size = sizeof (EFI_IMAGE_NT_HEADERS);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- ImageContext->PeCoffHeaderOffset,\r
- &Size,\r
- PeHdr\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ ImageContext->PeCoffHeaderOffset,\r
+ &Size,\r
+ Hdr.Pe32\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
+\r
//\r
- // Check the PE/COFF Header Signature. If not, then try to read a TE header\r
+ // Use Signature to figure out if we understand the image format\r
//\r
- if (PeHdr->Signature != EFI_IMAGE_NT_SIGNATURE) {\r
- Size = sizeof (EFI_TE_IMAGE_HEADER);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- 0,\r
- &Size,\r
- TeHdr\r
- );\r
- if (TeHdr->Signature != EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+ ImageContext->IsTeImage = TRUE;\r
+ ImageContext->Machine = Hdr.Te->Machine;\r
+ ImageContext->ImageType = (UINT16)(Hdr.Te->Subsystem);\r
+ //\r
+ // For TeImage, SectionAlignment is undefined to be set to Zero\r
+ // ImageSize can be calculated.\r
+ //\r
+ ImageContext->ImageSize = 0;\r
+ ImageContext->SectionAlignment = 0;\r
+ ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;\r
+\r
+ //\r
+ // Check the StrippedSize.\r
+ //\r
+ if (sizeof (EFI_TE_IMAGE_HEADER) >= (UINT32)Hdr.Te->StrippedSize) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
return RETURN_UNSUPPORTED;\r
}\r
\r
- ImageContext->IsTeImage = TRUE;\r
- }\r
+ //\r
+ // Check the SizeOfHeaders field.\r
+ //\r
+ if (Hdr.Te->BaseOfCode <= Hdr.Te->StrippedSize) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
\r
- return RETURN_SUCCESS;\r
-}\r
+ //\r
+ // Read last byte of Hdr.Te->SizeOfHeaders from the file.\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ ImageContext->SizeOfHeaders - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
\r
-/**\r
- Checks the PE or TE header of a PE/COFF or TE image to determine if it supported.\r
+ return Status;\r
+ }\r
\r
- @param ImageContext The context of the image being loaded.\r
- \r
- @param PeHdr The buffer in which to return the PE header.\r
- \r
- @param TeHdr The buffer in which to return the TE header.\r
+ //\r
+ // TE Image Data Directory Entry size is non-zero, but the Data Directory Virtual Address is zero.\r
+ // This case is not a valid TE image.\r
+ //\r
+ if (((Hdr.Te->DataDirectory[0].Size != 0) && (Hdr.Te->DataDirectory[0].VirtualAddress == 0)) ||\r
+ ((Hdr.Te->DataDirectory[1].Size != 0) && (Hdr.Te->DataDirectory[1].VirtualAddress == 0)))\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r
+ ImageContext->IsTeImage = FALSE;\r
+ ImageContext->Machine = Hdr.Pe32->FileHeader.Machine;\r
\r
- @retval RETURN_SUCCESS if the PE/COFF or TE image is supported\r
- @retval RETURN_UNSUPPORTED of the PE/COFF or TE image is not supported.\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // 1. Check OptionalHeader.NumberOfRvaAndSizes filed.\r
+ //\r
+ if (EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES < Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
\r
-**/\r
-STATIC\r
-RETURN_STATUS\r
-PeCoffLoaderCheckImageType (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN EFI_IMAGE_NT_HEADERS *PeHdr,\r
- IN EFI_TE_IMAGE_HEADER *TeHdr\r
- )\r
-{\r
- //\r
- // See if the machine type is supported. We support a native machine type (IA-32/Itanium-based)\r
- // and the machine type for the Virtual Machine.\r
- //\r
- if (ImageContext->IsTeImage == FALSE) {\r
- ImageContext->Machine = PeHdr->FileHeader.Machine;\r
+ //\r
+ // 2. Check the FileHeader.SizeOfOptionalHeader field.\r
+ // OptionalHeader.NumberOfRvaAndSizes is not bigger than 16, so\r
+ // OptionalHeader.NumberOfRvaAndSizes * sizeof (EFI_IMAGE_DATA_DIRECTORY) will not overflow.\r
+ //\r
+ HeaderWithoutDataDir = sizeof (EFI_IMAGE_OPTIONAL_HEADER32) - sizeof (EFI_IMAGE_DATA_DIRECTORY) * EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;\r
+ if (((UINT32)Hdr.Pe32->FileHeader.SizeOfOptionalHeader - HeaderWithoutDataDir) !=\r
+ Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes * sizeof (EFI_IMAGE_DATA_DIRECTORY))\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ SectionHeaderOffset = ImageContext->PeCoffHeaderOffset + sizeof (UINT32) + sizeof (EFI_IMAGE_FILE_HEADER) + Hdr.Pe32->FileHeader.SizeOfOptionalHeader;\r
+ //\r
+ // 3. Check the FileHeader.NumberOfSections field.\r
+ //\r
+ if (Hdr.Pe32->OptionalHeader.SizeOfImage <= SectionHeaderOffset) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if ((Hdr.Pe32->OptionalHeader.SizeOfImage - SectionHeaderOffset) / EFI_IMAGE_SIZEOF_SECTION_HEADER <= Hdr.Pe32->FileHeader.NumberOfSections) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // 4. Check the OptionalHeader.SizeOfHeaders field.\r
+ //\r
+ if (Hdr.Pe32->OptionalHeader.SizeOfHeaders <= SectionHeaderOffset) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if (Hdr.Pe32->OptionalHeader.SizeOfHeaders >= Hdr.Pe32->OptionalHeader.SizeOfImage) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if ((Hdr.Pe32->OptionalHeader.SizeOfHeaders - SectionHeaderOffset) / EFI_IMAGE_SIZEOF_SECTION_HEADER < (UINT32)Hdr.Pe32->FileHeader.NumberOfSections) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // 4.2 Read last byte of Hdr.Pe32.OptionalHeader.SizeOfHeaders from the file.\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ Hdr.Pe32->OptionalHeader.SizeOfHeaders - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Check the EFI_IMAGE_DIRECTORY_ENTRY_SECURITY data.\r
+ // Read the last byte to make sure the data is in the image region.\r
+ // The DataDirectory array begin with 1, not 0, so here use < to compare not <=.\r
+ //\r
+ if (EFI_IMAGE_DIRECTORY_ENTRY_SECURITY < Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes) {\r
+ if (Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size != 0) {\r
+ //\r
+ // Check the member data to avoid overflow.\r
+ //\r
+ if ((UINT32)(~0) - Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress <\r
+ Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size)\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Read last byte of section header from file\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress +\r
+ Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ ImageContext->ImageType = Hdr.Pe32->OptionalHeader.Subsystem;\r
+ ImageContext->ImageSize = (UINT64)Hdr.Pe32->OptionalHeader.SizeOfImage;\r
+ ImageContext->SectionAlignment = Hdr.Pe32->OptionalHeader.SectionAlignment;\r
+ ImageContext->SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;\r
+ } else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r
+ //\r
+ // 1. Check FileHeader.NumberOfRvaAndSizes filed.\r
+ //\r
+ if (EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES < Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // 2. Check the FileHeader.SizeOfOptionalHeader field.\r
+ // OptionalHeader.NumberOfRvaAndSizes is not bigger than 16, so\r
+ // OptionalHeader.NumberOfRvaAndSizes * sizeof (EFI_IMAGE_DATA_DIRECTORY) will not overflow.\r
+ //\r
+ HeaderWithoutDataDir = sizeof (EFI_IMAGE_OPTIONAL_HEADER64) - sizeof (EFI_IMAGE_DATA_DIRECTORY) * EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;\r
+ if (((UINT32)Hdr.Pe32Plus->FileHeader.SizeOfOptionalHeader - HeaderWithoutDataDir) !=\r
+ Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes * sizeof (EFI_IMAGE_DATA_DIRECTORY))\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ SectionHeaderOffset = ImageContext->PeCoffHeaderOffset + sizeof (UINT32) + sizeof (EFI_IMAGE_FILE_HEADER) + Hdr.Pe32Plus->FileHeader.SizeOfOptionalHeader;\r
+ //\r
+ // 3. Check the FileHeader.NumberOfSections field.\r
+ //\r
+ if (Hdr.Pe32Plus->OptionalHeader.SizeOfImage <= SectionHeaderOffset) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if ((Hdr.Pe32Plus->OptionalHeader.SizeOfImage - SectionHeaderOffset) / EFI_IMAGE_SIZEOF_SECTION_HEADER <= Hdr.Pe32Plus->FileHeader.NumberOfSections) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // 4. Check the OptionalHeader.SizeOfHeaders field.\r
+ //\r
+ if (Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders <= SectionHeaderOffset) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if (Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders >= Hdr.Pe32Plus->OptionalHeader.SizeOfImage) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ if ((Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders - SectionHeaderOffset) / EFI_IMAGE_SIZEOF_SECTION_HEADER < (UINT32)Hdr.Pe32Plus->FileHeader.NumberOfSections) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // 4.2 Read last byte of Hdr.Pe32Plus.OptionalHeader.SizeOfHeaders from the file.\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Check the EFI_IMAGE_DIRECTORY_ENTRY_SECURITY data.\r
+ // Read the last byte to make sure the data is in the image region.\r
+ // The DataDirectory array begin with 1, not 0, so here use < to compare not <=.\r
+ //\r
+ if (EFI_IMAGE_DIRECTORY_ENTRY_SECURITY < Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes) {\r
+ if (Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size != 0) {\r
+ //\r
+ // Check the member data to avoid overflow.\r
+ //\r
+ if ((UINT32)(~0) - Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress <\r
+ Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size)\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Read last byte of section header from file\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress +\r
+ Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ ImageContext->ImageType = Hdr.Pe32Plus->OptionalHeader.Subsystem;\r
+ ImageContext->ImageSize = (UINT64)Hdr.Pe32Plus->OptionalHeader.SizeOfImage;\r
+ ImageContext->SectionAlignment = Hdr.Pe32Plus->OptionalHeader.SectionAlignment;\r
+ ImageContext->SizeOfHeaders = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders;\r
+ } else {\r
+ ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
} else {\r
- ImageContext->Machine = TeHdr->Machine;\r
+ ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r
+ return RETURN_UNSUPPORTED;\r
}\r
\r
- if (!(EFI_IMAGE_MACHINE_TYPE_SUPPORTED (ImageContext->Machine))) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r
+ if (!PeCoffLoaderImageFormatSupported (ImageContext->Machine)) {\r
+ //\r
+ // If the PE/COFF loader does not support the image type return\r
+ // unsupported. This library can support lots of types of images\r
+ // this does not mean the user of this library can call the entry\r
+ // point of the image.\r
+ //\r
return RETURN_UNSUPPORTED;\r
}\r
\r
//\r
- // See if the image type is supported. We support EFI Applications,\r
- // EFI Boot Service Drivers, and EFI Runtime Drivers.\r
+ // Check each section field.\r
//\r
- if (ImageContext->IsTeImage == FALSE) {\r
- ImageContext->ImageType = PeHdr->OptionalHeader.Subsystem;\r
+ if (ImageContext->IsTeImage) {\r
+ SectionHeaderOffset = sizeof (EFI_TE_IMAGE_HEADER);\r
+ NumberOfSections = (UINTN)(Hdr.Te->NumberOfSections);\r
} else {\r
- ImageContext->ImageType = (UINT16) (TeHdr->Subsystem);\r
+ SectionHeaderOffset = ImageContext->PeCoffHeaderOffset + sizeof (UINT32) + sizeof (EFI_IMAGE_FILE_HEADER) + Hdr.Pe32->FileHeader.SizeOfOptionalHeader;\r
+ NumberOfSections = (UINTN)(Hdr.Pe32->FileHeader.NumberOfSections);\r
}\r
\r
+ for (Index = 0; Index < NumberOfSections; Index++) {\r
+ //\r
+ // Read section header from file\r
+ //\r
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ SectionHeaderOffset,\r
+ &Size,\r
+ &SectionHeader\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Adjust some field in Section Header for TE image.\r
+ //\r
+ if (ImageContext->IsTeImage) {\r
+ PeCoffLoaderAdjustOffsetForTeImage (&SectionHeader, (UINT32)Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER));\r
+ }\r
+\r
+ if (SectionHeader.SizeOfRawData > 0) {\r
+ //\r
+ // Section data should bigger than the Pe header.\r
+ //\r
+ if ((SectionHeader.VirtualAddress < ImageContext->SizeOfHeaders) ||\r
+ (SectionHeader.PointerToRawData < ImageContext->SizeOfHeaders))\r
+ {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Check the member data to avoid overflow.\r
+ //\r
+ if ((UINT32)(~0) - SectionHeader.PointerToRawData < SectionHeader.SizeOfRawData) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Base on the ImageRead function to check the section data field.\r
+ // Read the last byte to make sure the data is in the image region.\r
+ //\r
+ Size = 1;\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ SectionHeader.PointerToRawData + SectionHeader.SizeOfRawData - 1,\r
+ &Size,\r
+ &BufferData\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Check next section.\r
+ //\r
+ SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ }\r
\r
return RETURN_SUCCESS;\r
}\r
\r
/**\r
- Retrieves information on a PE/COFF image.\r
-\r
- @param This Calling context\r
- @param ImageContext The context of the image being loaded\r
-\r
- @retval RETURN_SUCCESS The information on the PE/COFF image was collected.\r
- @retval RETURN_INVALID_PARAMETER ImageContext is NULL.\r
- @retval RETURN_UNSUPPORTED The PE/COFF image is not supported.\r
- @retval Otherwise The error status from reading the PE/COFF image using the\r
- ImageContext->ImageRead() function\r
+ Retrieves information about a PE/COFF image.\r
+\r
+ Computes the PeCoffHeaderOffset, IsTeImage, ImageType, ImageAddress, ImageSize,\r
+ DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and\r
+ DebugDirectoryEntryRva fields of the ImageContext structure.\r
+ If ImageContext is NULL, then return RETURN_INVALID_PARAMETER.\r
+ If the PE/COFF image accessed through the ImageRead service in the ImageContext\r
+ structure is not a supported PE/COFF image type, then return RETURN_UNSUPPORTED.\r
+ If any errors occur while computing the fields of ImageContext,\r
+ then the error status is returned in the ImageError field of ImageContext.\r
+ If the image is a TE image, then SectionAlignment is set to 0.\r
+ The ImageRead and Handle fields of ImageContext structure must be valid prior\r
+ to invoking this service.\r
+\r
+ Caution: This function may receive untrusted input.\r
+ PE/COFF image is external input, so this routine will\r
+ also done many checks in PE image to make sure PE image DosHeader, PeOptionHeader,\r
+ SizeOfHeader, Section Data Region and Security Data Region be in PE image range.\r
+\r
+ @param ImageContext The pointer to the image context structure that describes the PE/COFF\r
+ image that needs to be examined by this function.\r
+\r
+ @retval RETURN_SUCCESS The information on the PE/COFF image was collected.\r
+ @retval RETURN_INVALID_PARAMETER ImageContext is NULL.\r
+ @retval RETURN_UNSUPPORTED The PE/COFF image is not supported.\r
\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderGetImageInfo (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
)\r
{\r
- RETURN_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS PeHdr;\r
- EFI_TE_IMAGE_HEADER TeHdr;\r
- EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;\r
- UINTN Size;\r
- UINTN Index;\r
- UINTN DebugDirectoryEntryRva;\r
- UINTN DebugDirectoryEntryFileOffset;\r
- UINTN SectionHeaderOffset;\r
- EFI_IMAGE_SECTION_HEADER SectionHeader;\r
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;\r
-\r
- if (NULL == ImageContext) {\r
+ RETURN_STATUS Status;\r
+ EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
+ EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;\r
+ UINTN Size;\r
+ UINTN ReadSize;\r
+ UINTN Index;\r
+ UINTN DebugDirectoryEntryRva;\r
+ UINTN DebugDirectoryEntryFileOffset;\r
+ UINTN SectionHeaderOffset;\r
+ EFI_IMAGE_SECTION_HEADER SectionHeader;\r
+ EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;\r
+ UINT32 NumberOfRvaAndSizes;\r
+ UINT32 TeStrippedOffset;\r
+\r
+ if (ImageContext == NULL) {\r
return RETURN_INVALID_PARAMETER;\r
}\r
+\r
//\r
// Assume success\r
//\r
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r
+ ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r
\r
- Status = PeCoffLoaderGetPeHeader (ImageContext, &PeHdr, &TeHdr);\r
- if (RETURN_ERROR (Status)) {\r
- return Status;\r
- }\r
- //\r
- // Verify machine type\r
- //\r
- Status = PeCoffLoaderCheckImageType (ImageContext, &PeHdr, &TeHdr);\r
+ Hdr.Union = &HdrData;\r
+ Status = PeCoffLoaderGetPeHeader (ImageContext, Hdr);\r
if (RETURN_ERROR (Status)) {\r
return Status;\r
}\r
+\r
//\r
// Retrieve the base address of the image\r
//\r
if (!(ImageContext->IsTeImage)) {\r
- ImageContext->ImageAddress = PeHdr.OptionalHeader.ImageBase;\r
+ TeStrippedOffset = 0;\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ ImageContext->ImageAddress = Hdr.Pe32->OptionalHeader.ImageBase;\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ ImageContext->ImageAddress = Hdr.Pe32Plus->OptionalHeader.ImageBase;\r
+ }\r
} else {\r
- ImageContext->ImageAddress = (PHYSICAL_ADDRESS) (TeHdr.ImageBase);\r
+ TeStrippedOffset = (UINT32)Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER);\r
+ ImageContext->ImageAddress = (PHYSICAL_ADDRESS)(Hdr.Te->ImageBase + TeStrippedOffset);\r
}\r
+\r
//\r
// Initialize the alternate destination address to 0 indicating that it\r
// should not be used.\r
ImageContext->DestinationAddress = 0;\r
\r
//\r
- // Initialize the codeview pointer.\r
+ // Initialize the debug codeview pointer.\r
//\r
- ImageContext->CodeView = NULL;\r
- ImageContext->PdbPointer = NULL;\r
+ ImageContext->DebugDirectoryEntryRva = 0;\r
+ ImageContext->CodeView = NULL;\r
+ ImageContext->PdbPointer = NULL;\r
\r
//\r
// Three cases with regards to relocations:\r
// Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.\r
//\r
// Look at the file header to determine if relocations have been stripped, and\r
- // save this info in the image context for later use.\r
+ // save this information in the image context for later use.\r
//\r
- if ((!(ImageContext->IsTeImage)) && ((PeHdr.FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {\r
+ if ((!(ImageContext->IsTeImage)) && ((Hdr.Pe32->FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {\r
+ ImageContext->RelocationsStripped = TRUE;\r
+ } else if ((ImageContext->IsTeImage) && (Hdr.Te->DataDirectory[0].Size == 0) && (Hdr.Te->DataDirectory[0].VirtualAddress == 0)) {\r
ImageContext->RelocationsStripped = TRUE;\r
} else {\r
ImageContext->RelocationsStripped = FALSE;\r
}\r
\r
if (!(ImageContext->IsTeImage)) {\r
- ImageContext->ImageSize = (UINT64) PeHdr.OptionalHeader.SizeOfImage;\r
- ImageContext->SectionAlignment = PeHdr.OptionalHeader.SectionAlignment;\r
- ImageContext->SizeOfHeaders = PeHdr.OptionalHeader.SizeOfHeaders;\r
-\r
- //\r
- // Modify ImageSize to contain .PDB file name if required and initialize\r
- // PdbRVA field...\r
- //\r
- if (PeHdr.OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r
- DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(PeHdr.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+ DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+ DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
+ }\r
\r
+ if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r
DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r
\r
//\r
//\r
DebugDirectoryEntryFileOffset = 0;\r
\r
- SectionHeaderOffset = (UINTN)(\r
- ImageContext->PeCoffHeaderOffset +\r
- sizeof (UINT32) + \r
- sizeof (EFI_IMAGE_FILE_HEADER) + \r
- PeHdr.FileHeader.SizeOfOptionalHeader\r
- );\r
+ SectionHeaderOffset = ImageContext->PeCoffHeaderOffset +\r
+ sizeof (UINT32) +\r
+ sizeof (EFI_IMAGE_FILE_HEADER) +\r
+ Hdr.Pe32->FileHeader.SizeOfOptionalHeader;\r
\r
- for (Index = 0; Index < PeHdr.FileHeader.NumberOfSections; Index++) {\r
+ for (Index = 0; Index < Hdr.Pe32->FileHeader.NumberOfSections; Index++) {\r
//\r
// Read section header from file\r
//\r
- Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- SectionHeaderOffset,\r
- &Size,\r
- &SectionHeader\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ SectionHeaderOffset,\r
+ &Size,\r
+ &SectionHeader\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
\r
- if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r
- DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r
- DebugDirectoryEntryFileOffset =\r
- DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r
+ if ((DebugDirectoryEntryRva >= SectionHeader.VirtualAddress) &&\r
+ (DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize))\r
+ {\r
+ DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r
break;\r
}\r
\r
}\r
\r
if (DebugDirectoryEntryFileOffset != 0) {\r
- for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {\r
+ for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {\r
//\r
// Read next debug directory entry\r
//\r
- Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- DebugDirectoryEntryFileOffset,\r
- &Size,\r
- &DebugEntry\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ DebugDirectoryEntryFileOffset + Index,\r
+ &Size,\r
+ &DebugEntry\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
\r
+ //\r
+ // From PeCoff spec, when DebugEntry.RVA == 0 means this debug info will not load into memory.\r
+ // Here we will always load EFI_IMAGE_DEBUG_TYPE_CODEVIEW type debug info. so need adjust the\r
+ // ImageContext->ImageSize when DebugEntry.RVA == 0.\r
+ //\r
if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r
- ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));\r
- if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {\r
+ ImageContext->DebugDirectoryEntryRva = (UINT32)(DebugDirectoryEntryRva + Index);\r
+ if ((DebugEntry.RVA == 0) && (DebugEntry.FileOffset != 0)) {\r
ImageContext->ImageSize += DebugEntry.SizeOfData;\r
}\r
\r
}\r
}\r
} else {\r
- ImageContext->ImageSize = 0;\r
- ImageContext->SectionAlignment = 4096;\r
- ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN) TeHdr.BaseOfCode - (UINTN) TeHdr.StrippedSize;\r
+ DebugDirectoryEntry = &Hdr.Te->DataDirectory[1];\r
+ DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r
+ SectionHeaderOffset = (UINTN)(sizeof (EFI_TE_IMAGE_HEADER));\r
\r
- DebugDirectoryEntry = &TeHdr.DataDirectory[1];\r
- DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r
- SectionHeaderOffset = (UINTN) (sizeof (EFI_TE_IMAGE_HEADER));\r
+ DebugDirectoryEntryFileOffset = 0;\r
\r
- DebugDirectoryEntryFileOffset = 0;\r
-\r
- for (Index = 0; Index < TeHdr.NumberOfSections;) {\r
+ for (Index = 0; Index < Hdr.Te->NumberOfSections;) {\r
//\r
// Read section header from file\r
//\r
- Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- SectionHeaderOffset,\r
- &Size,\r
- &SectionHeader\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ SectionHeaderOffset,\r
+ &Size,\r
+ &SectionHeader\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
\r
- if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r
- DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r
+ if ((DebugDirectoryEntryRva >= SectionHeader.VirtualAddress) &&\r
+ (DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize))\r
+ {\r
DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva -\r
- SectionHeader.VirtualAddress +\r
- SectionHeader.PointerToRawData +\r
- sizeof (EFI_TE_IMAGE_HEADER) -\r
- TeHdr.StrippedSize;\r
+ SectionHeader.VirtualAddress +\r
+ SectionHeader.PointerToRawData -\r
+ TeStrippedOffset;\r
\r
//\r
// File offset of the debug directory was found, if this is not the last\r
// section, then skip to the last section for calculating the image size.\r
//\r
- if (Index < (UINTN) TeHdr.NumberOfSections - 1) {\r
- SectionHeaderOffset += (TeHdr.NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);\r
- Index = TeHdr.NumberOfSections - 1;\r
+ if (Index < (UINTN)Hdr.Te->NumberOfSections - 1) {\r
+ SectionHeaderOffset += (Hdr.Te->NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);\r
+ Index = Hdr.Te->NumberOfSections - 1;\r
continue;\r
}\r
}\r
\r
//\r
// In Te image header there is not a field to describe the ImageSize.\r
- // Actually, the ImageSize equals the RVA plus the VirtualSize of \r
- // the last section mapped into memory (Must be rounded up to \r
- // a mulitple of Section Alignment). Per the PE/COFF specification, the\r
+ // Actually, the ImageSize equals the RVA plus the VirtualSize of\r
+ // the last section mapped into memory (Must be rounded up to\r
+ // a multiple of Section Alignment). Per the PE/COFF specification, the\r
// section headers in the Section Table must appear in order of the RVA\r
// values for the corresponding sections. So the ImageSize can be determined\r
// by the RVA and the VirtualSize of the last section header in the\r
// Section Table.\r
//\r
- if ((++Index) == (UINTN) TeHdr.NumberOfSections) {\r
- ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize +\r
- ImageContext->SectionAlignment - 1) & ~(ImageContext->SectionAlignment - 1);\r
+ if ((++Index) == (UINTN)Hdr.Te->NumberOfSections) {\r
+ ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) - TeStrippedOffset;\r
}\r
\r
SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r
}\r
\r
if (DebugDirectoryEntryFileOffset != 0) {\r
- for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {\r
+ for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {\r
//\r
// Read next debug directory entry\r
//\r
- Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- DebugDirectoryEntryFileOffset,\r
- &Size,\r
- &DebugEntry\r
- );\r
- if (RETURN_ERROR (Status)) {\r
+ Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);\r
+ ReadSize = Size;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ DebugDirectoryEntryFileOffset + Index,\r
+ &Size,\r
+ &DebugEntry\r
+ );\r
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
+ if (Size != ReadSize) {\r
+ Status = RETURN_UNSUPPORTED;\r
+ }\r
+\r
return Status;\r
}\r
\r
if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r
- ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));\r
+ ImageContext->DebugDirectoryEntryRva = (UINT32)(DebugDirectoryEntryRva + Index);\r
return RETURN_SUCCESS;\r
}\r
}\r
/**\r
Converts an image address to the loaded address.\r
\r
- @param ImageContext The context of the image being loaded.\r
- \r
- @param Address The address to be converted to the loaded address.\r
+ @param ImageContext The context of the image being loaded.\r
+ @param Address The address to be converted to the loaded address.\r
+ @param TeStrippedOffset Stripped offset for TE image.\r
\r
- @return NULL if the address can not be converted, otherwise, the converted address\r
+ @return The converted address or NULL if the address can not be converted.\r
\r
**/\r
-STATIC\r
VOID *\r
PeCoffLoaderImageAddress (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN UINTN Address\r
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
+ IN UINTN Address,\r
+ IN UINTN TeStrippedOffset\r
)\r
{\r
- if (Address >= ImageContext->ImageSize) {\r
+ //\r
+ // Make sure that Address and ImageSize is correct for the loaded image.\r
+ //\r
+ if (Address >= ImageContext->ImageSize + TeStrippedOffset) {\r
ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r
return NULL;\r
}\r
\r
- return (CHAR8 *) ((UINTN) ImageContext->ImageAddress + Address);\r
+ return (CHAR8 *)((UINTN)ImageContext->ImageAddress + Address - TeStrippedOffset);\r
}\r
\r
/**\r
- Relocates a PE/COFF image in memory.\r
+ Applies relocation fixups to a PE/COFF image that was loaded with PeCoffLoaderLoadImage().\r
+\r
+ If the DestinationAddress field of ImageContext is 0, then use the ImageAddress field of\r
+ ImageContext as the relocation base address. Otherwise, use the DestinationAddress field\r
+ of ImageContext as the relocation base address. The caller must allocate the relocation\r
+ fixup log buffer and fill in the FixupData field of ImageContext prior to calling this function.\r
+\r
+ The ImageRead, Handle, PeCoffHeaderOffset, IsTeImage, Machine, ImageType, ImageAddress,\r
+ ImageSize, DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders,\r
+ DebugDirectoryEntryRva, EntryPoint, FixupDataSize, CodeView, PdbPointer, and FixupData of\r
+ the ImageContext structure must be valid prior to invoking this service.\r
\r
- @param This Calling context.\r
- \r
- @param ImageContext Contains information on the loaded image to relocate.\r
+ If ImageContext is NULL, then ASSERT().\r
\r
- @retval RETURN_SUCCESS if the PE/COFF image was relocated.\r
- @retval RETURN_LOAD_ERROR if the image is not a valid PE/COFF image.\r
- @retval RETURN_UNSUPPORTED not support.\r
+ Note that if the platform does not maintain coherency between the instruction cache(s) and the data\r
+ cache(s) in hardware, then the caller is responsible for performing cache maintenance operations\r
+ prior to transferring control to a PE/COFF image that is loaded using this library.\r
+\r
+ @param ImageContext The pointer to the image context structure that describes the PE/COFF\r
+ image that is being relocated.\r
+\r
+ @retval RETURN_SUCCESS The PE/COFF image was relocated.\r
+ Extended status information is in the ImageError field of ImageContext.\r
+ @retval RETURN_LOAD_ERROR The image in not a valid PE/COFF image.\r
+ Extended status information is in the ImageError field of ImageContext.\r
+ @retval RETURN_UNSUPPORTED A relocation record type is not supported.\r
+ Extended status information is in the ImageError field of ImageContext.\r
\r
**/\r
RETURN_STATUS\r
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
)\r
{\r
- RETURN_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS *PeHdr;\r
- EFI_TE_IMAGE_HEADER *TeHdr;\r
- EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r
- UINT64 Adjust;\r
- EFI_IMAGE_BASE_RELOCATION *RelocBase;\r
- EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r
- UINT16 *Reloc;\r
- UINT16 *RelocEnd;\r
- CHAR8 *Fixup;\r
- CHAR8 *FixupBase;\r
- UINT16 *F16;\r
- UINT32 *F32;\r
- CHAR8 *FixupData;\r
- PHYSICAL_ADDRESS BaseAddress;\r
-\r
- PeHdr = NULL;\r
- TeHdr = NULL;\r
+ RETURN_STATUS Status;\r
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
+ EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r
+ UINT64 Adjust;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBaseOrg;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBase;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r
+ UINT16 *Reloc;\r
+ UINT16 *RelocEnd;\r
+ CHAR8 *Fixup;\r
+ CHAR8 *FixupBase;\r
+ UINT16 *Fixup16;\r
+ UINT32 *Fixup32;\r
+ UINT64 *Fixup64;\r
+ CHAR8 *FixupData;\r
+ PHYSICAL_ADDRESS BaseAddress;\r
+ UINT32 NumberOfRvaAndSizes;\r
+ UINT32 TeStrippedOffset;\r
+\r
+ ASSERT (ImageContext != NULL);\r
+\r
//\r
// Assume success\r
//\r
// If there are no relocation entries, then we are done\r
//\r
if (ImageContext->RelocationsStripped) {\r
+ // Applies additional environment specific actions to relocate fixups\r
+ // to a PE/COFF image if needed\r
+ PeCoffLoaderRelocateImageExtraAction (ImageContext);\r
return RETURN_SUCCESS;\r
}\r
\r
// If the destination address is not 0, use that rather than the\r
// image address as the relocation target.\r
//\r
- if (ImageContext->DestinationAddress) {\r
+ if (ImageContext->DestinationAddress != 0) {\r
BaseAddress = ImageContext->DestinationAddress;\r
} else {\r
BaseAddress = ImageContext->ImageAddress;\r
}\r
\r
if (!(ImageContext->IsTeImage)) {\r
- PeHdr = (EFI_IMAGE_NT_HEADERS *)((UINTN)ImageContext->ImageAddress + \r
- ImageContext->PeCoffHeaderOffset);\r
- Adjust = (UINT64) BaseAddress - PeHdr->OptionalHeader.ImageBase;\r
- PeHdr->OptionalHeader.ImageBase = (UINTN)BaseAddress;\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r
+ TeStrippedOffset = 0;\r
+\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ Adjust = (UINT64)BaseAddress - Hdr.Pe32->OptionalHeader.ImageBase;\r
+ if (Adjust != 0) {\r
+ Hdr.Pe32->OptionalHeader.ImageBase = (UINT32)BaseAddress;\r
+ }\r
+\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+ RelocDir = &Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ Adjust = (UINT64)BaseAddress - Hdr.Pe32Plus->OptionalHeader.ImageBase;\r
+ if (Adjust != 0) {\r
+ Hdr.Pe32Plus->OptionalHeader.ImageBase = (UINT64)BaseAddress;\r
+ }\r
+\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+ RelocDir = &Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
+ }\r
\r
//\r
// Find the relocation block\r
- //\r
// Per the PE/COFF spec, you can't assume that a given data directory\r
// is present in the image. You have to check the NumberOfRvaAndSizes in\r
// the optional header to verify a desired directory entry is there.\r
//\r
- if (PeHdr->OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r
- RelocDir = &PeHdr->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
- RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);\r
- RelocBaseEnd = PeCoffLoaderImageAddress (\r
- ImageContext,\r
- RelocDir->VirtualAddress + RelocDir->Size - 1\r
- );\r
- } else {\r
- //\r
- // Set base and end to bypass processing below.\r
- //\r
- RelocBase = RelocBaseEnd = 0;\r
+ if ((NumberOfRvaAndSizes < EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC)) {\r
+ RelocDir = NULL;\r
}\r
} else {\r
- TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r
- Adjust = (UINT64) (BaseAddress - TeHdr->ImageBase);\r
- TeHdr->ImageBase = (UINT64) (BaseAddress);\r
+ Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);\r
+ TeStrippedOffset = (UINT32)Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER);\r
+ Adjust = (UINT64)(BaseAddress - (Hdr.Te->ImageBase + TeStrippedOffset));\r
+ if (Adjust != 0) {\r
+ Hdr.Te->ImageBase = (UINT64)(BaseAddress - TeStrippedOffset);\r
+ }\r
\r
//\r
// Find the relocation block\r
//\r
- RelocDir = &TeHdr->DataDirectory[0];\r
- RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(\r
- ImageContext->ImageAddress + \r
- RelocDir->VirtualAddress +\r
- sizeof(EFI_TE_IMAGE_HEADER) - \r
- TeHdr->StrippedSize\r
- );\r
- RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *) ((UINTN) RelocBase + (UINTN) RelocDir->Size - 1);\r
+ RelocDir = &Hdr.Te->DataDirectory[0];\r
}\r
- \r
- //\r
- // Run the relocation information and apply the fixups\r
- //\r
- FixupData = ImageContext->FixupData;\r
- while (RelocBase < RelocBaseEnd) {\r
-\r
- Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r
- RelocEnd = (UINT16 *) ((CHAR8 *) RelocBase + RelocBase->SizeOfBlock);\r
- if (!(ImageContext->IsTeImage)) {\r
- FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress);\r
- } else {\r
- FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +\r
- RelocBase->VirtualAddress +\r
- sizeof(EFI_TE_IMAGE_HEADER) - \r
- TeHdr->StrippedSize\r
- );\r
- }\r
\r
- if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||\r
- (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress + \r
- (UINTN)ImageContext->ImageSize)) {\r
+ if ((RelocDir != NULL) && (RelocDir->Size > 0)) {\r
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *)PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress, TeStrippedOffset);\r
+ RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *)PeCoffLoaderImageAddress (\r
+ ImageContext,\r
+ RelocDir->VirtualAddress + RelocDir->Size - 1,\r
+ TeStrippedOffset\r
+ );\r
+ if ((RelocBase == NULL) || (RelocBaseEnd == NULL) || ((UINTN)RelocBaseEnd < (UINTN)RelocBase)) {\r
ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
return RETURN_LOAD_ERROR;\r
}\r
+ } else {\r
+ //\r
+ // Set base and end to bypass processing below.\r
+ //\r
+ RelocBase = RelocBaseEnd = NULL;\r
+ }\r
+\r
+ RelocBaseOrg = RelocBase;\r
+\r
+ //\r
+ // If Adjust is not zero, then apply fix ups to the image\r
+ //\r
+ if (Adjust != 0) {\r
+ //\r
+ // Run the relocation information and apply the fixups\r
+ //\r
+ FixupData = ImageContext->FixupData;\r
+ while ((UINTN)RelocBase < (UINTN)RelocBaseEnd) {\r
+ Reloc = (UINT16 *)((CHAR8 *)RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r
+ //\r
+ // Add check for RelocBase->SizeOfBlock field.\r
+ //\r
+ if (RelocBase->SizeOfBlock == 0) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ if ((UINTN)RelocBase > MAX_ADDRESS - RelocBase->SizeOfBlock) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ RelocEnd = (UINT16 *)((CHAR8 *)RelocBase + RelocBase->SizeOfBlock);\r
+ if ((UINTN)RelocEnd > (UINTN)RelocBaseOrg + RelocDir->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress, TeStrippedOffset);\r
+ if (FixupBase == NULL) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ //\r
+ // Run this relocation record\r
+ //\r
+ while ((UINTN)Reloc < (UINTN)RelocEnd) {\r
+ Fixup = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress + (*Reloc & 0xFFF), TeStrippedOffset);\r
+ if (Fixup == NULL) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ switch ((*Reloc) >> 12) {\r
+ case EFI_IMAGE_REL_BASED_ABSOLUTE:\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_HIGH:\r
+ Fixup16 = (UINT16 *)Fixup;\r
+ *Fixup16 = (UINT16)(*Fixup16 + ((UINT16)((UINT32)Adjust >> 16)));\r
+ if (FixupData != NULL) {\r
+ *(UINT16 *)FixupData = *Fixup16;\r
+ FixupData = FixupData + sizeof (UINT16);\r
+ }\r
+\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_LOW:\r
+ Fixup16 = (UINT16 *)Fixup;\r
+ *Fixup16 = (UINT16)(*Fixup16 + (UINT16)Adjust);\r
+ if (FixupData != NULL) {\r
+ *(UINT16 *)FixupData = *Fixup16;\r
+ FixupData = FixupData + sizeof (UINT16);\r
+ }\r
+\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_HIGHLOW:\r
+ Fixup32 = (UINT32 *)Fixup;\r
+ *Fixup32 = *Fixup32 + (UINT32)Adjust;\r
+ if (FixupData != NULL) {\r
+ FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r
+ *(UINT32 *)FixupData = *Fixup32;\r
+ FixupData = FixupData + sizeof (UINT32);\r
+ }\r
\r
- //\r
- // Run this relocation record\r
- //\r
- while (Reloc < RelocEnd) {\r
+ break;\r
\r
- Fixup = FixupBase + (*Reloc & 0xFFF);\r
- switch ((*Reloc) >> 12) {\r
- case EFI_IMAGE_REL_BASED_ABSOLUTE:\r
- break;\r
+ case EFI_IMAGE_REL_BASED_DIR64:\r
+ Fixup64 = (UINT64 *)Fixup;\r
+ *Fixup64 = *Fixup64 + (UINT64)Adjust;\r
+ if (FixupData != NULL) {\r
+ FixupData = ALIGN_POINTER (FixupData, sizeof (UINT64));\r
+ *(UINT64 *)(FixupData) = *Fixup64;\r
+ FixupData = FixupData + sizeof (UINT64);\r
+ }\r
\r
- case EFI_IMAGE_REL_BASED_HIGH:\r
- F16 = (UINT16 *) Fixup;\r
- *F16 = (UINT16) ((*F16 << 16) + (UINT16) Adjust);\r
- if (FixupData != NULL) {\r
- *(UINT16 *) FixupData = *F16;\r
- FixupData = FixupData + sizeof (UINT16);\r
- }\r
- break;\r
-\r
- case EFI_IMAGE_REL_BASED_LOW:\r
- F16 = (UINT16 *) Fixup;\r
- *F16 = (UINT16) (*F16 + (UINT16) Adjust);\r
- if (FixupData != NULL) {\r
- *(UINT16 *) FixupData = *F16;\r
- FixupData = FixupData + sizeof (UINT16);\r
- }\r
- break;\r
-\r
- case EFI_IMAGE_REL_BASED_HIGHLOW:\r
- F32 = (UINT32 *) Fixup;\r
- *F32 = *F32 + (UINT32) Adjust;\r
- if (FixupData != NULL) {\r
- FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r
- *(UINT32 *) FixupData = *F32;\r
- FixupData = FixupData + sizeof (UINT32);\r
+ break;\r
+\r
+ default:\r
+ //\r
+ // The common code does not handle some of the stranger IPF relocations\r
+ // PeCoffLoaderRelocateImageEx () adds support for these complex fixups\r
+ // on IPF and is a No-Op on other architectures.\r
+ //\r
+ Status = PeCoffLoaderRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r
+ if (RETURN_ERROR (Status)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return Status;\r
+ }\r
}\r
- break;\r
\r
- case EFI_IMAGE_REL_BASED_HIGHADJ:\r
//\r
- // Return the same EFI_UNSUPPORTED return code as\r
- // PeCoffLoaderRelocateImageEx() returns if it does not recognize\r
- // the relocation type.\r
+ // Next relocation record\r
//\r
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
- return RETURN_UNSUPPORTED;\r
-\r
- default:\r
- Status = PeCoffLoaderRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r
- if (RETURN_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
- return Status;\r
- }\r
+ Reloc += 1;\r
}\r
\r
//\r
- // Next relocation record\r
+ // Next reloc block\r
//\r
- Reloc += 1;\r
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *)RelocEnd;\r
}\r
\r
+ ASSERT ((UINTN)FixupData <= (UINTN)ImageContext->FixupData + ImageContext->FixupDataSize);\r
+\r
//\r
- // Next reloc block\r
+ // Adjust the EntryPoint to match the linked-to address\r
//\r
- RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;\r
+ if (ImageContext->DestinationAddress != 0) {\r
+ ImageContext->EntryPoint -= (UINT64)ImageContext->ImageAddress;\r
+ ImageContext->EntryPoint += (UINT64)ImageContext->DestinationAddress;\r
+ }\r
}\r
\r
+ // Applies additional environment specific actions to relocate fixups\r
+ // to a PE/COFF image if needed\r
+ PeCoffLoaderRelocateImageExtraAction (ImageContext);\r
+\r
return RETURN_SUCCESS;\r
}\r
\r
/**\r
Loads a PE/COFF image into memory.\r
\r
- @param This Calling context.\r
- \r
- @param ImageContext Contains information on image to load into memory.\r
-\r
- @retval RETURN_SUCCESS if the PE/COFF image was loaded.\r
- @retval RETURN_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer.\r
- @retval RETURN_LOAD_ERROR if the image is a runtime driver with no relocations.\r
- @retval RETURN_INVALID_PARAMETER if the image address is invalid.\r
+ Loads the PE/COFF image accessed through the ImageRead service of ImageContext into the buffer\r
+ specified by the ImageAddress and ImageSize fields of ImageContext. The caller must allocate\r
+ the load buffer and fill in the ImageAddress and ImageSize fields prior to calling this function.\r
+ The EntryPoint, FixupDataSize, CodeView, PdbPointer and HiiResourceData fields of ImageContext are computed.\r
+ The ImageRead, Handle, PeCoffHeaderOffset, IsTeImage, Machine, ImageType, ImageAddress, ImageSize,\r
+ DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and DebugDirectoryEntryRva\r
+ fields of the ImageContext structure must be valid prior to invoking this service.\r
+\r
+ If ImageContext is NULL, then ASSERT().\r
+\r
+ Note that if the platform does not maintain coherency between the instruction cache(s) and the data\r
+ cache(s) in hardware, then the caller is responsible for performing cache maintenance operations\r
+ prior to transferring control to a PE/COFF image that is loaded using this library.\r
+\r
+ @param ImageContext The pointer to the image context structure that describes the PE/COFF\r
+ image that is being loaded.\r
+\r
+ @retval RETURN_SUCCESS The PE/COFF image was loaded into the buffer specified by\r
+ the ImageAddress and ImageSize fields of ImageContext.\r
+ Extended status information is in the ImageError field of ImageContext.\r
+ @retval RETURN_BUFFER_TOO_SMALL The caller did not provide a large enough buffer.\r
+ Extended status information is in the ImageError field of ImageContext.\r
+ @retval RETURN_LOAD_ERROR The PE/COFF image is an EFI Runtime image with no relocations.\r
+ Extended status information is in the ImageError field of ImageContext.\r
+ @retval RETURN_INVALID_PARAMETER The image address is invalid.\r
+ Extended status information is in the ImageError field of ImageContext.\r
\r
**/\r
RETURN_STATUS\r
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
)\r
{\r
- RETURN_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS *PeHdr;\r
- EFI_TE_IMAGE_HEADER *TeHdr;\r
- PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r
- EFI_IMAGE_SECTION_HEADER *FirstSection;\r
- EFI_IMAGE_SECTION_HEADER *Section;\r
- UINTN NumberOfSections;\r
- UINTN Index;\r
- CHAR8 *Base;\r
- CHAR8 *End;\r
- CHAR8 *MaxEnd;\r
- EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r
- UINTN Size;\r
- UINT32 TempDebugEntryRva;\r
-\r
- PeHdr = NULL;\r
- TeHdr = NULL;\r
+ RETURN_STATUS Status;\r
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
+ PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r
+ EFI_IMAGE_SECTION_HEADER *FirstSection;\r
+ EFI_IMAGE_SECTION_HEADER *Section;\r
+ UINTN NumberOfSections;\r
+ UINTN Index;\r
+ CHAR8 *Base;\r
+ CHAR8 *End;\r
+ EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r
+ EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r
+ UINTN Size;\r
+ UINT32 TempDebugEntryRva;\r
+ UINT32 NumberOfRvaAndSizes;\r
+ EFI_IMAGE_RESOURCE_DIRECTORY *ResourceDirectory;\r
+ EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY *ResourceDirectoryEntry;\r
+ EFI_IMAGE_RESOURCE_DIRECTORY_STRING *ResourceDirectoryString;\r
+ EFI_IMAGE_RESOURCE_DATA_ENTRY *ResourceDataEntry;\r
+ CHAR16 *String;\r
+ UINT32 Offset;\r
+ UINT32 TeStrippedOffset;\r
+\r
+ ASSERT (ImageContext != NULL);\r
+\r
//\r
// Assume success\r
//\r
ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r
\r
//\r
- // Copy the provided context info into our local version, get what we\r
+ // Copy the provided context information into our local version, get what we\r
// can from the original image, and then use that to make sure everything\r
// is legit.\r
//\r
return RETURN_BUFFER_TOO_SMALL;\r
}\r
\r
+ if (ImageContext->ImageAddress == 0) {\r
+ //\r
+ // Image cannot be loaded into 0 address.\r
+ //\r
+ ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r
+ return RETURN_INVALID_PARAMETER;\r
+ }\r
+\r
//\r
// If there's no relocations, then make sure it's not a runtime driver,\r
// and that it's being loaded at the linked address.\r
ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r
return RETURN_LOAD_ERROR;\r
}\r
+\r
//\r
// If the image does not contain relocations, and the requested load address\r
// is not the linked address, then return an error.\r
return RETURN_INVALID_PARAMETER;\r
}\r
}\r
+\r
//\r
// Make sure the allocated space has the proper section alignment\r
//\r
return RETURN_INVALID_PARAMETER;\r
}\r
}\r
+\r
//\r
// Read the entire PE/COFF or TE header into memory\r
//\r
if (!(ImageContext->IsTeImage)) {\r
Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- 0,\r
- &ImageContext->SizeOfHeaders,\r
- (VOID *) (UINTN) ImageContext->ImageAddress\r
- );\r
-\r
- PeHdr = (EFI_IMAGE_NT_HEADERS *)\r
- ((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r
-\r
- FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r
- (UINTN)ImageContext->ImageAddress +\r
- ImageContext->PeCoffHeaderOffset +\r
- sizeof(UINT32) + \r
- sizeof(EFI_IMAGE_FILE_HEADER) + \r
- PeHdr->FileHeader.SizeOfOptionalHeader\r
- );\r
- NumberOfSections = (UINTN) (PeHdr->FileHeader.NumberOfSections);\r
+ ImageContext->Handle,\r
+ 0,\r
+ &ImageContext->SizeOfHeaders,\r
+ (VOID *)(UINTN)ImageContext->ImageAddress\r
+ );\r
+\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r
+\r
+ FirstSection = (EFI_IMAGE_SECTION_HEADER *)(\r
+ (UINTN)ImageContext->ImageAddress +\r
+ ImageContext->PeCoffHeaderOffset +\r
+ sizeof (UINT32) +\r
+ sizeof (EFI_IMAGE_FILE_HEADER) +\r
+ Hdr.Pe32->FileHeader.SizeOfOptionalHeader\r
+ );\r
+ NumberOfSections = (UINTN)(Hdr.Pe32->FileHeader.NumberOfSections);\r
+ TeStrippedOffset = 0;\r
} else {\r
Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- 0,\r
- &ImageContext->SizeOfHeaders,\r
- (void *) (UINTN) ImageContext->ImageAddress\r
- );\r
-\r
- TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);\r
-\r
- FirstSection = (EFI_IMAGE_SECTION_HEADER *) (\r
- (UINTN)ImageContext->ImageAddress +\r
- sizeof(EFI_TE_IMAGE_HEADER)\r
- );\r
- NumberOfSections = (UINTN) (TeHdr->NumberOfSections);\r
-\r
+ ImageContext->Handle,\r
+ 0,\r
+ &ImageContext->SizeOfHeaders,\r
+ (void *)(UINTN)ImageContext->ImageAddress\r
+ );\r
+\r
+ Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);\r
+ FirstSection = (EFI_IMAGE_SECTION_HEADER *)(\r
+ (UINTN)ImageContext->ImageAddress +\r
+ sizeof (EFI_TE_IMAGE_HEADER)\r
+ );\r
+ NumberOfSections = (UINTN)(Hdr.Te->NumberOfSections);\r
+ TeStrippedOffset = (UINT32)Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER);\r
}\r
\r
if (RETURN_ERROR (Status)) {\r
// Load each section of the image\r
//\r
Section = FirstSection;\r
- for (Index = 0, MaxEnd = NULL; Index < NumberOfSections; Index++) {\r
-\r
+ for (Index = 0; Index < NumberOfSections; Index++) {\r
//\r
- // Compute sections address\r
+ // Read the section\r
//\r
- Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress);\r
- End = PeCoffLoaderImageAddress (\r
- ImageContext,\r
- Section->VirtualAddress + Section->Misc.VirtualSize - 1\r
- );\r
- if (ImageContext->IsTeImage) {\r
- Base = (CHAR8 *) ((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r
- End = (CHAR8 *) ((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);\r
+ Size = (UINTN)Section->Misc.VirtualSize;\r
+ if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r
+ Size = (UINTN)Section->SizeOfRawData;\r
}\r
\r
- if (End > MaxEnd) {\r
- MaxEnd = End;\r
- }\r
//\r
- // If the base start or end address resolved to 0, then fail.\r
+ // Compute sections address\r
//\r
- if ((Base == NULL) || (End == NULL)) {\r
- ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r
- return RETURN_LOAD_ERROR;\r
- }\r
+ Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress, TeStrippedOffset);\r
+ End = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress + Section->Misc.VirtualSize - 1, TeStrippedOffset);\r
\r
//\r
- // Read the section\r
+ // If the size of the section is non-zero and the base address or end address resolved to 0, then fail.\r
//\r
- Size = (UINTN) Section->Misc.VirtualSize;\r
- if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r
- Size = (UINTN) Section->SizeOfRawData;\r
+ if ((Size > 0) && ((Base == NULL) || (End == NULL))) {\r
+ ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r
+ return RETURN_LOAD_ERROR;\r
}\r
\r
- if (Section->SizeOfRawData) {\r
- if (!(ImageContext->IsTeImage)) {\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- Section->PointerToRawData,\r
- &Size,\r
- Base\r
- );\r
- } else {\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- Section->PointerToRawData + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize,\r
- &Size,\r
- Base\r
- );\r
- }\r
-\r
+ if (Section->SizeOfRawData > 0) {\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ Section->PointerToRawData - TeStrippedOffset,\r
+ &Size,\r
+ Base\r
+ );\r
if (RETURN_ERROR (Status)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
return Status;\r
}\r
\r
//\r
- // If raw size is less then virt size, zero fill the remaining\r
+ // If raw size is less then virtual size, zero fill the remaining\r
//\r
\r
if (Size < Section->Misc.VirtualSize) {\r
// Get image's entry point\r
//\r
if (!(ImageContext->IsTeImage)) {\r
- ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (UINTN) PeCoffLoaderImageAddress (\r
- ImageContext,\r
- PeHdr->OptionalHeader.AddressOfEntryPoint\r
- );\r
+ //\r
+ // Sizes of AddressOfEntryPoint are different so we need to do this safely\r
+ //\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ ImageContext->EntryPoint = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (\r
+ ImageContext,\r
+ (UINTN)Hdr.Pe32->OptionalHeader.AddressOfEntryPoint,\r
+ 0\r
+ );\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ ImageContext->EntryPoint = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (\r
+ ImageContext,\r
+ (UINTN)Hdr.Pe32Plus->OptionalHeader.AddressOfEntryPoint,\r
+ 0\r
+ );\r
+ }\r
} else {\r
- ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (\r
- (UINTN)ImageContext->ImageAddress +\r
- (UINTN)TeHdr->AddressOfEntryPoint +\r
- (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r
- (UINTN) TeHdr->StrippedSize\r
- );\r
+ ImageContext->EntryPoint = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (\r
+ ImageContext,\r
+ (UINTN)Hdr.Te->AddressOfEntryPoint,\r
+ TeStrippedOffset\r
+ );\r
}\r
\r
//\r
// the optional header to verify a desired directory entry is there.\r
//\r
if (!(ImageContext->IsTeImage)) {\r
- if (PeHdr->OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r
- &PeHdr->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
- ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
+ }\r
+\r
+ //\r
+ // Must use UINT64 here, because there might a case that 32bit loader to load 64bit image.\r
+ //\r
+ if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r
+ ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINT64);\r
} else {\r
ImageContext->FixupDataSize = 0;\r
}\r
} else {\r
- DirectoryEntry = &TeHdr->DataDirectory[0];\r
- ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);\r
+ DirectoryEntry = &Hdr.Te->DataDirectory[0];\r
+ ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINT64);\r
}\r
+\r
//\r
// Consumer must allocate a buffer for the relocation fixup log.\r
// Only used for runtime drivers.\r
ImageContext->FixupData = NULL;\r
\r
//\r
- // Load the Codeview info if present\r
+ // Load the Codeview information if present\r
//\r
if (ImageContext->DebugDirectoryEntryRva != 0) {\r
- if (!(ImageContext->IsTeImage)) {\r
- DebugEntry = PeCoffLoaderImageAddress (\r
- ImageContext,\r
- ImageContext->DebugDirectoryEntryRva\r
- );\r
- } else {\r
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(\r
- ImageContext->ImageAddress +\r
- ImageContext->DebugDirectoryEntryRva +\r
- sizeof(EFI_TE_IMAGE_HEADER) -\r
- TeHdr->StrippedSize\r
- );\r
- }\r
-\r
- if (DebugEntry != NULL) {\r
- TempDebugEntryRva = DebugEntry->RVA;\r
- if (DebugEntry->RVA == 0 && DebugEntry->FileOffset != 0) {\r
- Section--;\r
- if ((UINTN) Section->SizeOfRawData < Section->Misc.VirtualSize) {\r
- TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;\r
- } else {\r
- TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;\r
- }\r
+ DebugEntry = PeCoffLoaderImageAddress (\r
+ ImageContext,\r
+ ImageContext->DebugDirectoryEntryRva,\r
+ TeStrippedOffset\r
+ );\r
+ if (DebugEntry == NULL) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ TempDebugEntryRva = DebugEntry->RVA;\r
+ if ((DebugEntry->RVA == 0) && (DebugEntry->FileOffset != 0)) {\r
+ Section--;\r
+ if ((UINTN)Section->SizeOfRawData < Section->Misc.VirtualSize) {\r
+ TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;\r
+ } else {\r
+ TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;\r
}\r
+ }\r
\r
- if (TempDebugEntryRva != 0) {\r
- if (!(ImageContext->IsTeImage)) {\r
- ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva);\r
- } else {\r
- ImageContext->CodeView = (VOID *)(\r
- (UINTN)ImageContext->ImageAddress +\r
- (UINTN)TempDebugEntryRva +\r
- (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -\r
- (UINTN) TeHdr->StrippedSize\r
- );\r
- }\r
+ if (TempDebugEntryRva != 0) {\r
+ ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva, TeStrippedOffset);\r
+ if (ImageContext->CodeView == NULL) {\r
+ ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
+ return RETURN_LOAD_ERROR;\r
+ }\r
+\r
+ if (DebugEntry->RVA == 0) {\r
+ Size = DebugEntry->SizeOfData;\r
+ Status = ImageContext->ImageRead (\r
+ ImageContext->Handle,\r
+ DebugEntry->FileOffset - TeStrippedOffset,\r
+ &Size,\r
+ ImageContext->CodeView\r
+ );\r
+ //\r
+ // Should we apply fix up to this field according to the size difference between PE and TE?\r
+ // Because now we maintain TE header fields unfixed, this field will also remain as they are\r
+ // in original PE image.\r
+ //\r
\r
- if (ImageContext->CodeView == NULL) {\r
+ if (RETURN_ERROR (Status)) {\r
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
return RETURN_LOAD_ERROR;\r
}\r
\r
- if (DebugEntry->RVA == 0) {\r
- Size = DebugEntry->SizeOfData;\r
- if (!(ImageContext->IsTeImage)) {\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- DebugEntry->FileOffset,\r
- &Size,\r
- ImageContext->CodeView\r
- );\r
- } else {\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle,\r
- DebugEntry->FileOffset + sizeof (EFI_TE_IMAGE_HEADER) - TeHdr->StrippedSize,\r
- &Size,\r
- ImageContext->CodeView\r
- );\r
- //\r
- // Should we apply fix up to this field according to the size difference between PE and TE?\r
- // Because now we maintain TE header fields unfixed, this field will also remain as they are\r
- // in original PE image.\r
- //\r
- }\r
+ DebugEntry->RVA = TempDebugEntryRva;\r
+ }\r
\r
- if (RETURN_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return RETURN_LOAD_ERROR;\r
+ switch (*(UINT32 *)ImageContext->CodeView) {\r
+ case CODEVIEW_SIGNATURE_NB10:\r
+ if (DebugEntry->SizeOfData < sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
}\r
\r
- DebugEntry->RVA = TempDebugEntryRva;\r
- }\r
-\r
- switch (*(UINT32 *) ImageContext->CodeView) {\r
- case CODEVIEW_SIGNATURE_NB10:\r
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r
+ ImageContext->PdbPointer = (CHAR8 *)ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);\r
break;\r
\r
case CODEVIEW_SIGNATURE_RSDS:\r
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r
+ if (DebugEntry->SizeOfData < sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ImageContext->PdbPointer = (CHAR8 *)ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r
+ break;\r
+\r
+ case CODEVIEW_SIGNATURE_MTOC:\r
+ if (DebugEntry->SizeOfData < sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY)) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ImageContext->PdbPointer = (CHAR8 *)ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY);\r
break;\r
\r
default:\r
break;\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // Get Image's HII resource section\r
+ //\r
+ ImageContext->HiiResourceData = 0;\r
+ if (!(ImageContext->IsTeImage)) {\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE];\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE];\r
+ }\r
+\r
+ if ((NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE) && (DirectoryEntry->Size != 0)) {\r
+ Base = PeCoffLoaderImageAddress (ImageContext, DirectoryEntry->VirtualAddress, 0);\r
+ if (Base != NULL) {\r
+ ResourceDirectory = (EFI_IMAGE_RESOURCE_DIRECTORY *)Base;\r
+ Offset = sizeof (EFI_IMAGE_RESOURCE_DIRECTORY) + sizeof (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY) *\r
+ (ResourceDirectory->NumberOfNamedEntries + ResourceDirectory->NumberOfIdEntries);\r
+ if (Offset > DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectoryEntry = (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY *)(ResourceDirectory + 1);\r
+\r
+ for (Index = 0; Index < ResourceDirectory->NumberOfNamedEntries; Index++) {\r
+ if (ResourceDirectoryEntry->u1.s.NameIsString) {\r
+ //\r
+ // Check the ResourceDirectoryEntry->u1.s.NameOffset before use it.\r
+ //\r
+ if (ResourceDirectoryEntry->u1.s.NameOffset >= DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectoryString = (EFI_IMAGE_RESOURCE_DIRECTORY_STRING *)(Base + ResourceDirectoryEntry->u1.s.NameOffset);\r
+ String = &ResourceDirectoryString->String[0];\r
+\r
+ if ((ResourceDirectoryString->Length == 3) &&\r
+ (String[0] == L'H') &&\r
+ (String[1] == L'I') &&\r
+ (String[2] == L'I'))\r
+ {\r
+ //\r
+ // Resource Type "HII" found\r
+ //\r
+ if (ResourceDirectoryEntry->u2.s.DataIsDirectory) {\r
+ //\r
+ // Move to next level - resource Name\r
+ //\r
+ if (ResourceDirectoryEntry->u2.s.OffsetToDirectory >= DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectory = (EFI_IMAGE_RESOURCE_DIRECTORY *)(Base + ResourceDirectoryEntry->u2.s.OffsetToDirectory);\r
+ Offset = ResourceDirectoryEntry->u2.s.OffsetToDirectory + sizeof (EFI_IMAGE_RESOURCE_DIRECTORY) +\r
+ sizeof (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY) * (ResourceDirectory->NumberOfNamedEntries + ResourceDirectory->NumberOfIdEntries);\r
+ if (Offset > DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectoryEntry = (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY *)(ResourceDirectory + 1);\r
+\r
+ if (ResourceDirectoryEntry->u2.s.DataIsDirectory) {\r
+ //\r
+ // Move to next level - resource Language\r
+ //\r
+ if (ResourceDirectoryEntry->u2.s.OffsetToDirectory >= DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectory = (EFI_IMAGE_RESOURCE_DIRECTORY *)(Base + ResourceDirectoryEntry->u2.s.OffsetToDirectory);\r
+ Offset = ResourceDirectoryEntry->u2.s.OffsetToDirectory + sizeof (EFI_IMAGE_RESOURCE_DIRECTORY) +\r
+ sizeof (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY) * (ResourceDirectory->NumberOfNamedEntries + ResourceDirectory->NumberOfIdEntries);\r
+ if (Offset > DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDirectoryEntry = (EFI_IMAGE_RESOURCE_DIRECTORY_ENTRY *)(ResourceDirectory + 1);\r
+ }\r
+ }\r
+\r
+ //\r
+ // Now it ought to be resource Data\r
+ //\r
+ if (!ResourceDirectoryEntry->u2.s.DataIsDirectory) {\r
+ if (ResourceDirectoryEntry->u2.OffsetToData >= DirectoryEntry->Size) {\r
+ ImageContext->ImageError = IMAGE_ERROR_UNSUPPORTED;\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ ResourceDataEntry = (EFI_IMAGE_RESOURCE_DATA_ENTRY *)(Base + ResourceDirectoryEntry->u2.OffsetToData);\r
+ ImageContext->HiiResourceData = (PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (ImageContext, ResourceDataEntry->OffsetToData, 0);\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ ResourceDirectoryEntry++;\r
}\r
}\r
}\r
\r
return Status;\r
}\r
+\r
+/**\r
+ Reapply fixups on a fixed up PE32/PE32+ image to allow virutal calling at EFI\r
+ runtime.\r
+\r
+ This function reapplies relocation fixups to the PE/COFF image specified by ImageBase\r
+ and ImageSize so the image will execute correctly when the PE/COFF image is mapped\r
+ to the address specified by VirtualImageBase. RelocationData must be identical\r
+ to the FiuxupData buffer from the PE_COFF_LOADER_IMAGE_CONTEXT structure\r
+ after this PE/COFF image was relocated with PeCoffLoaderRelocateImage().\r
+\r
+ Note that if the platform does not maintain coherency between the instruction cache(s) and the data\r
+ cache(s) in hardware, then the caller is responsible for performing cache maintenance operations\r
+ prior to transferring control to a PE/COFF image that is loaded using this library.\r
+\r
+ @param ImageBase The base address of a PE/COFF image that has been loaded\r
+ and relocated into system memory.\r
+ @param VirtImageBase The request virtual address that the PE/COFF image is to\r
+ be fixed up for.\r
+ @param ImageSize The size, in bytes, of the PE/COFF image.\r
+ @param RelocationData A pointer to the relocation data that was collected when the PE/COFF\r
+ image was relocated using PeCoffLoaderRelocateImage().\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+PeCoffLoaderRelocateImageForRuntime (\r
+ IN PHYSICAL_ADDRESS ImageBase,\r
+ IN PHYSICAL_ADDRESS VirtImageBase,\r
+ IN UINTN ImageSize,\r
+ IN VOID *RelocationData\r
+ )\r
+{\r
+ CHAR8 *OldBase;\r
+ CHAR8 *NewBase;\r
+ EFI_IMAGE_DOS_HEADER *DosHdr;\r
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
+ UINT32 NumberOfRvaAndSizes;\r
+ EFI_IMAGE_DATA_DIRECTORY *DataDirectory;\r
+ EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBase;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;\r
+ EFI_IMAGE_BASE_RELOCATION *RelocBaseOrig;\r
+ UINT16 *Reloc;\r
+ UINT16 *RelocEnd;\r
+ CHAR8 *Fixup;\r
+ CHAR8 *FixupBase;\r
+ UINT16 *Fixup16;\r
+ UINT32 *Fixup32;\r
+ UINT64 *Fixup64;\r
+ CHAR8 *FixupData;\r
+ UINTN Adjust;\r
+ RETURN_STATUS Status;\r
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r
+\r
+ if ((RelocationData == NULL) || (ImageBase == 0x0) || (VirtImageBase == 0x0)) {\r
+ return;\r
+ }\r
+\r
+ OldBase = (CHAR8 *)((UINTN)ImageBase);\r
+ NewBase = (CHAR8 *)((UINTN)VirtImageBase);\r
+ Adjust = (UINTN)NewBase - (UINTN)OldBase;\r
+\r
+ ImageContext.ImageAddress = ImageBase;\r
+ ImageContext.ImageSize = ImageSize;\r
+\r
+ //\r
+ // Find the image's relocate dir info\r
+ //\r
+ DosHdr = (EFI_IMAGE_DOS_HEADER *)OldBase;\r
+ if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
+ //\r
+ // Valid DOS header so get address of PE header\r
+ //\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)(((CHAR8 *)DosHdr) + DosHdr->e_lfanew);\r
+ } else {\r
+ //\r
+ // No Dos header so assume image starts with PE header.\r
+ //\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)OldBase;\r
+ }\r
+\r
+ if (Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {\r
+ //\r
+ // Not a valid PE image so Exit\r
+ //\r
+ return;\r
+ }\r
+\r
+ if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
+ DataDirectory = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[0]);\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
+ DataDirectory = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[0]);\r
+ }\r
+\r
+ //\r
+ // Find the relocation block\r
+ //\r
+ // Per the PE/COFF spec, you can't assume that a given data directory\r
+ // is present in the image. You have to check the NumberOfRvaAndSizes in\r
+ // the optional header to verify a desired directory entry is there.\r
+ //\r
+ RelocBase = NULL;\r
+ RelocBaseEnd = NULL;\r
+ if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {\r
+ RelocDir = DataDirectory + EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC;\r
+ if ((RelocDir != NULL) && (RelocDir->Size > 0)) {\r
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *)PeCoffLoaderImageAddress (&ImageContext, RelocDir->VirtualAddress, 0);\r
+ RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *)PeCoffLoaderImageAddress (\r
+ &ImageContext,\r
+ RelocDir->VirtualAddress + RelocDir->Size - 1,\r
+ 0\r
+ );\r
+ }\r
+\r
+ if ((RelocBase == NULL) || (RelocBaseEnd == NULL) || ((UINTN)RelocBaseEnd < (UINTN)RelocBase)) {\r
+ //\r
+ // relocation block is not valid, just return\r
+ //\r
+ return;\r
+ }\r
+ } else {\r
+ //\r
+ // Cannot find relocations, cannot continue to relocate the image, ASSERT for this invalid image.\r
+ //\r
+ ASSERT (FALSE);\r
+ return;\r
+ }\r
+\r
+ //\r
+ // ASSERT for the invalid image when RelocBase and RelocBaseEnd are both NULL.\r
+ //\r
+ ASSERT (RelocBase != NULL && RelocBaseEnd != NULL);\r
+\r
+ if (Adjust != 0) {\r
+ //\r
+ // Run the whole relocation block. And re-fixup data that has not been\r
+ // modified. The FixupData is used to see if the image has been modified\r
+ // since it was relocated. This is so data sections that have been updated\r
+ // by code will not be fixed up, since that would set them back to\r
+ // defaults.\r
+ //\r
+ FixupData = RelocationData;\r
+ RelocBaseOrig = RelocBase;\r
+ while ((UINTN)RelocBase < (UINTN)RelocBaseEnd) {\r
+ //\r
+ // Add check for RelocBase->SizeOfBlock field.\r
+ //\r
+ if ((RelocBase->SizeOfBlock == 0) || (RelocBase->SizeOfBlock > RelocDir->Size)) {\r
+ //\r
+ // Data invalid, cannot continue to relocate the image, just return.\r
+ //\r
+ return;\r
+ }\r
+\r
+ Reloc = (UINT16 *)((UINT8 *)RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));\r
+ RelocEnd = (UINT16 *)((UINT8 *)RelocBase + RelocBase->SizeOfBlock);\r
+ if ((UINTN)RelocEnd > (UINTN)RelocBaseOrig + RelocDir->Size) {\r
+ return;\r
+ }\r
+\r
+ FixupBase = PeCoffLoaderImageAddress (&ImageContext, RelocBase->VirtualAddress, 0);\r
+ if (FixupBase == NULL) {\r
+ return;\r
+ }\r
+\r
+ //\r
+ // Run this relocation record\r
+ //\r
+ while ((UINTN)Reloc < (UINTN)RelocEnd) {\r
+ Fixup = PeCoffLoaderImageAddress (&ImageContext, RelocBase->VirtualAddress + (*Reloc & 0xFFF), 0);\r
+ if (Fixup == NULL) {\r
+ return;\r
+ }\r
+\r
+ switch ((*Reloc) >> 12) {\r
+ case EFI_IMAGE_REL_BASED_ABSOLUTE:\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_HIGH:\r
+ Fixup16 = (UINT16 *)Fixup;\r
+ if (*(UINT16 *)FixupData == *Fixup16) {\r
+ *Fixup16 = (UINT16)(*Fixup16 + ((UINT16)((UINT32)Adjust >> 16)));\r
+ }\r
+\r
+ FixupData = FixupData + sizeof (UINT16);\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_LOW:\r
+ Fixup16 = (UINT16 *)Fixup;\r
+ if (*(UINT16 *)FixupData == *Fixup16) {\r
+ *Fixup16 = (UINT16)(*Fixup16 + ((UINT16)Adjust & 0xffff));\r
+ }\r
+\r
+ FixupData = FixupData + sizeof (UINT16);\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_HIGHLOW:\r
+ Fixup32 = (UINT32 *)Fixup;\r
+ FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));\r
+ if (*(UINT32 *)FixupData == *Fixup32) {\r
+ *Fixup32 = *Fixup32 + (UINT32)Adjust;\r
+ }\r
+\r
+ FixupData = FixupData + sizeof (UINT32);\r
+ break;\r
+\r
+ case EFI_IMAGE_REL_BASED_DIR64:\r
+ Fixup64 = (UINT64 *)Fixup;\r
+ FixupData = ALIGN_POINTER (FixupData, sizeof (UINT64));\r
+ if (*(UINT64 *)FixupData == *Fixup64) {\r
+ *Fixup64 = *Fixup64 + (UINT64)Adjust;\r
+ }\r
+\r
+ FixupData = FixupData + sizeof (UINT64);\r
+ break;\r
+\r
+ default:\r
+ //\r
+ // Only Itanium requires ConvertPeImage_Ex\r
+ //\r
+ Status = PeHotRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r
+ if (RETURN_ERROR (Status)) {\r
+ return;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Next relocation record\r
+ //\r
+ Reloc += 1;\r
+ }\r
+\r
+ //\r
+ // next reloc block\r
+ //\r
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *)RelocEnd;\r
+ }\r
+ }\r
+}\r
+\r
+/**\r
+ Reads contents of a PE/COFF image from a buffer in system memory.\r
+\r
+ This is the default implementation of a PE_COFF_LOADER_READ_FILE function\r
+ that assumes FileHandle pointer to the beginning of a PE/COFF image.\r
+ This function reads contents of the PE/COFF image that starts at the system memory\r
+ address specified by FileHandle. The read operation copies ReadSize bytes from the\r
+ PE/COFF image starting at byte offset FileOffset into the buffer specified by Buffer.\r
+ The size of the buffer actually read is returned in ReadSize.\r
+\r
+ The caller must make sure the FileOffset and ReadSize within the file scope.\r
+\r
+ If FileHandle is NULL, then ASSERT().\r
+ If ReadSize is NULL, then ASSERT().\r
+ If Buffer is NULL, then ASSERT().\r
+\r
+ @param FileHandle The pointer to base of the input stream\r
+ @param FileOffset Offset into the PE/COFF image to begin the read operation.\r
+ @param ReadSize On input, the size in bytes of the requested read operation.\r
+ On output, the number of bytes actually read.\r
+ @param Buffer Output buffer that contains the data read from the PE/COFF image.\r
+\r
+ @retval RETURN_SUCCESS Data is read from FileOffset from the Handle into\r
+ the buffer.\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+PeCoffLoaderImageReadFromMemory (\r
+ IN VOID *FileHandle,\r
+ IN UINTN FileOffset,\r
+ IN OUT UINTN *ReadSize,\r
+ OUT VOID *Buffer\r
+ )\r
+{\r
+ ASSERT (ReadSize != NULL);\r
+ ASSERT (FileHandle != NULL);\r
+ ASSERT (Buffer != NULL);\r
+\r
+ CopyMem (Buffer, ((UINT8 *)FileHandle) + FileOffset, *ReadSize);\r
+ return RETURN_SUCCESS;\r
+}\r
+\r
+/**\r
+ Unloads a loaded PE/COFF image from memory and releases its taken resource.\r
+ Releases any environment specific resources that were allocated when the image\r
+ specified by ImageContext was loaded using PeCoffLoaderLoadImage().\r
+\r
+ For NT32 emulator, the PE/COFF image loaded by system needs to release.\r
+ For real platform, the PE/COFF image loaded by Core doesn't needs to be unloaded,\r
+ this function can simply return RETURN_SUCCESS.\r
+\r
+ If ImageContext is NULL, then ASSERT().\r
+\r
+ @param ImageContext The pointer to the image context structure that describes the PE/COFF\r
+ image to be unloaded.\r
+\r
+ @retval RETURN_SUCCESS The PE/COFF image was unloaded successfully.\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+PeCoffLoaderUnloadImage (\r
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
+ )\r
+{\r
+ //\r
+ // Applies additional environment specific actions to unload a\r
+ // PE/COFF image if needed\r
+ //\r
+ PeCoffLoaderUnloadImageExtraAction (ImageContext);\r
+ return RETURN_SUCCESS;\r
+}\r
projects / mirror_edk2.git / blobdiff