/** @file\r
- PE/COFF Loader Library implementation that wraps a protocol passed up from \r
+ PE/COFF Loader Library implementation that wraps a protocol passed up from\r
SEC/PEI via a HOB. This is done to save space.\r
\r
- Copyright (c) 2010, Intel Corporation<BR>\r
- Portions copyright (c) 2008-2010 Apple Inc. All rights reserved.<BR>\r
- All rights reserved. This program and the accompanying materials\r
+ Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
+ Portions copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>\r
+ 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
#include <Protocol/PeCoffLoader.h>\r
\r
\r
+PE_COFF_LOADER_PROTOCOL *gPeCoffLoader = NULL;\r
+\r
+\r
/**\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
+ 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
+ The ImageRead and Handle fields of ImageContext structure must be valid prior\r
to invoking this service.\r
\r
@param ImageContext Pointer to the image context structure that describes the PE/COFF\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
+\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
+\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
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
+ 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
+\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
\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
+\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
+\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 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
+ @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
+ @retval RETURN_SUCCESS Data is read from FileOffset from the Handle into\r
the buffer.\r
**/\r
RETURN_STATUS\r
OUT VOID *Buffer\r
)\r
{\r
- return gPeCoffLoader->RelocateImageForRuntime (\r
- *FileHandle,\r
+ return gPeCoffLoader->ReadFromMemory (\r
+ FileHandle,\r
FileOffset,\r
- *ReadSize,\r
- *Buffer\r
+ ReadSize,\r
+ Buffer\r
);\r
- \r
+\r
}\r
\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
+ 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 Base address of a PE/COFF image that has been loaded \r
+ @param ImageBase 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
+ @param RelocationData A pointer to the relocation data that was collected when the PE/COFF\r
image was relocated using PeCoffLoaderRelocateImage().\r
- \r
+\r
**/\r
VOID\r
EFIAPI\r
ImageBase,\r
VirtImageBase,\r
ImageSize,\r
- *RelocationData\r
+ RelocationData\r
);\r
}\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
+ 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
+ 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
+\r
If ImageContext is NULL, then ASSERT().\r
- \r
+\r
@param ImageContext Pointer to the image context structure that describes the PE/COFF\r
image to be unloaded.\r
\r
return gPeCoffLoader->UnloadImage (ImageContext);\r
}\r
\r
+typedef struct {\r
+ EFI_HOB_GUID_TYPE Hob;\r
+ VOID *Interface;\r
+} PROTOCOL_HOB;\r
\r
\r
/**\r
- Register LzmaDecompress and LzmaDecompressGetInfo handlers with LzmaCustomerDecompressGuid.\r
+ The constructor function caches the pointer of DXE Services Table.\r
+\r
+ The constructor function caches the pointer of DXE Services Table.\r
+ It will ASSERT() if that operation fails.\r
+ It will ASSERT() if the pointer of DXE Services Table is NULL.\r
+ It will always return EFI_SUCCESS.\r
+\r
+ @param ImageHandle The firmware allocated handle for the EFI image.\r
+ @param SystemTable A pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
\r
- @retval RETURN_SUCCESS Register successfully.\r
- @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler.\r
**/\r
EFI_STATUS\r
EFIAPI\r
DxeHobPeCoffLibConstructor (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
{\r
PROTOCOL_HOB *Hob;\r
- \r
+\r
Hob = GetFirstGuidHob (&gPeCoffLoaderProtocolGuid);\r
if (Hob == NULL) {\r
return EFI_NOT_FOUND;\r
}\r
- \r
+\r
gPeCoffLoader = Hob->Interface;\r
+ return EFI_SUCCESS;\r
}\r
\r
\r
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