+++ /dev/null
-/*++\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
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- EdkPeCoffLoaderX64.c\r
-\r
-Abstract:\r
-\r
- Wrap the Base PE/COFF loader with the PE COFF Protocol\r
-\r
-\r
---*/\r
-\r
-#define IMAGE_64_MACHINE_TYPE_SUPPORTED(Machine) \\r
- ((Machine) == EFI_IMAGE_MACHINE_IA32 || \\r
- (Machine) == EFI_IMAGE_MACHINE_X64 || \\r
- (Machine) == EFI_IMAGE_MACHINE_EBC)\r
-\r
-STATIC\r
-EFI_STATUS\r
-PeCoffLoader64GetPeHeader (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- OUT EFI_IMAGE_NT_HEADERS64 *PeHdr\r
- );\r
-\r
-STATIC\r
-EFI_STATUS\r
-PeCoffLoader64CheckImageType (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN EFI_IMAGE_NT_HEADERS64 *PeHdr\r
- );\r
-\r
-STATIC\r
-VOID *\r
-PeCoffLoader64ImageAddress (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN UINTN Address\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64GetImageInfo (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64RelocateImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64LoadImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- );\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64UnloadImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- );\r
-\r
-EFI_STATUS\r
-PeCoffLoader64RelocateImageEx (\r
- IN UINT16 *Reloc,\r
- IN OUT CHAR8 *Fixup, \r
- IN OUT CHAR8 **FixupData,\r
- IN UINT64 Adjust\r
- );\r
-\r
-EFI_PEI_PE_COFF_LOADER_PROTOCOL mPeCoffLoaderX64 = {\r
- PeCoffLoader64GetImageInfo,\r
- PeCoffLoader64LoadImage,\r
- PeCoffLoader64RelocateImage,\r
- PeCoffLoader64UnloadImage\r
-};\r
-\r
-STATIC\r
-EFI_STATUS\r
-PeCoffLoader64GetPeHeader (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- OUT EFI_IMAGE_NT_HEADERS64 *PeHdr\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Retrieves the PE Header from a PE/COFF image\r
-\r
-Arguments:\r
- ImageContext - The context of the image being loaded\r
- PeHdr - The buffer in which to return the PE header\r
-\r
-Returns:\r
- EFI_SUCCESS if the PE Header is read, \r
- Otherwise, the error status from reading the PE/COFF image using the ImageRead function.\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_IMAGE_DOS_HEADER DosHdr;\r
- UINTN Size;\r
- \r
- //\r
- // Read the DOS image headers\r
- //\r
- Size = sizeof (EFI_IMAGE_DOS_HEADER);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle, \r
- 0,\r
- &Size, \r
- &DosHdr\r
- );\r
- if (EFI_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\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
- //\r
- ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;\r
- } \r
-\r
- //\r
- // Read the PE/COFF Header\r
- //\r
- Size = sizeof (EFI_IMAGE_NT_HEADERS64);\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle, \r
- ImageContext->PeCoffHeaderOffset, \r
- &Size, \r
- PeHdr\r
- );\r
- if (EFI_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return Status;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-static\r
-EFI_STATUS\r
-PeCoffLoader64CheckImageType (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN EFI_IMAGE_NT_HEADERS64 *PeHdr\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Checks the PE header of a PE/COFF image to determine if it supported\r
-\r
-Arguments:\r
- ImageContext - The context of the image being loaded\r
- PeHdr - The buffer in which to return the PE header\r
-\r
-Returns:\r
- EFI_SUCCESS if the PE/COFF image is supported\r
- EFI_UNSUPPORTED of the PE/COFF image is not supported.\r
-\r
---*/\r
-{\r
- //\r
- // Check the PE/COFF Header SIgnature\r
- //\r
- if (PeHdr->Signature != EFI_IMAGE_NT_SIGNATURE) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_PE_HEADER_SIGNATURE;\r
- return EFI_UNSUPPORTED;\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
- ImageContext->Machine = PeHdr->FileHeader.Machine;\r
- if (!(IMAGE_64_MACHINE_TYPE_SUPPORTED (ImageContext->Machine))) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_MACHINE_TYPE;\r
- return EFI_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
- //\r
- ImageContext->ImageType = PeHdr->OptionalHeader.Subsystem;\r
- switch (ImageContext->ImageType) {\r
-\r
- case EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION:\r
- ImageContext->ImageCodeMemoryType = EfiLoaderCode;\r
- ImageContext->ImageDataMemoryType = EfiLoaderData;\r
- break;\r
- \r
- case EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:\r
- ImageContext->ImageCodeMemoryType = EfiBootServicesCode;\r
- ImageContext->ImageDataMemoryType = EfiBootServicesData;\r
- break;\r
- \r
- case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:\r
- case EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:\r
- ImageContext->ImageCodeMemoryType = EfiRuntimeServicesCode;\r
- ImageContext->ImageDataMemoryType = EfiRuntimeServicesData;\r
- break;\r
- \r
- default:\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64GetImageInfo (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Retrieves information on a PE/COFF image\r
-\r
-Arguments:\r
- ImageContext - The context of the image being loaded\r
- PeHdr - The buffer in which to return the PE header\r
-\r
-Returns:\r
- EFI_SUCCESS if the information on the PE/COFF image was collected.\r
- EFI_UNSUPPORTED of the PE/COFF image is not supported.\r
- Otherwise, the error status from reading the PE/COFF image using the \r
- ImageContext->ImageRead() function\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS64 PeHdr;\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 EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // Assume success\r
- //\r
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r
- \r
- Status = PeCoffLoader64GetPeHeader (ImageContext, &PeHdr);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Verify machine type\r
- //\r
- Status = PeCoffLoader64CheckImageType (ImageContext, &PeHdr);\r
- if (EFI_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Retrieve the base address of the image\r
- //\r
- ImageContext->ImageAddress = PeHdr.OptionalHeader.ImageBase;\r
- \r
- //\r
- // Initialize the alternate destination address to 0 indicating that it \r
- // should not be used.\r
- //\r
- ImageContext->DestinationAddress = 0;\r
-\r
- //\r
- // Initialize the codeview pointer.\r
- //\r
- ImageContext->CodeView = NULL;\r
- ImageContext->PdbPointer = NULL;\r
- \r
- //\r
- // Three cases with regards to relocations:\r
- // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable\r
- // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable\r
- // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but\r
- // has no base relocs to apply\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
- //\r
- if (PeHdr.FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) {\r
- ImageContext->RelocationsStripped = TRUE;\r
- } else {\r
- ImageContext->RelocationsStripped = FALSE;\r
- }\r
-\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
-\r
- if (PeHdr.OptionalHeader.NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r
- DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r
- &(PeHdr.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r
-\r
- DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;\r
-\r
- //\r
- // Determine the file offset of the debug directory... This means we walk\r
- // the sections to find which section contains the RVA of the debug\r
- // directory\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
- \r
- for (Index = 0; Index < PeHdr.FileHeader.NumberOfSections; Index += 1) {\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 (EFI_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return Status;\r
- }\r
- \r
- if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&\r
- DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {\r
- DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;\r
- break;\r
- }\r
- \r
- SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r
- }\r
- \r
- if (DebugDirectoryEntryFileOffset != 0) {\r
- for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {\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 (EFI_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return Status;\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->ImageSize += DebugEntry.SizeOfData;\r
- }\r
- return EFI_SUCCESS;\r
- }\r
- }\r
- }\r
- }\r
- return EFI_SUCCESS;\r
-}\r
-\r
-static\r
-VOID *\r
-PeCoffLoader64ImageAddress (\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r
- IN UINTN Address\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Converts an image address to the loaded address\r
-\r
-Arguments:\r
- ImageContext - The context of the image being loaded\r
- Address - The address to be converted to the loaded address\r
-\r
-Returns:\r
- NULL if the address can not be converted, otherwise, the converted address\r
-\r
---*/\r
-{\r
- if (Address >= ImageContext->ImageSize) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r
- return NULL;\r
- }\r
- return (CHAR8 *)((UINTN)ImageContext->ImageAddress + Address);\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64RelocateImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Relocates a PE/COFF image in memory\r
-\r
-Arguments:\r
- ImageContext - Contains information on the loaded image to relocate\r
-\r
-Returns:\r
- EFI_SUCCESS if the PE/COFF image was relocated\r
- EFI_LOAD_ERROR if the image is not a valid PE/COFF image\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS64 *PeHdr;\r
- EFI_IMAGE_DATA_DIRECTORY *RelocDir;\r
- IN 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
- EFI_PHYSICAL_ADDRESS BaseAddress;\r
-\r
-\r
- //\r
- // Assume success\r
- //\r
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;\r
-\r
- //\r
- // If there are no relocation entries, then we are done\r
- //\r
- if (ImageContext->RelocationsStripped) {\r
- return EFI_SUCCESS;\r
- }\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
- BaseAddress = ImageContext->DestinationAddress;\r
- } else {\r
- BaseAddress = ImageContext->ImageAddress;\r
- }\r
- PeHdr = (EFI_IMAGE_NT_HEADERS64 *)((UINTN)ImageContext->ImageAddress + \r
- ImageContext->PeCoffHeaderOffset);\r
- Adjust = (UINT64) BaseAddress - PeHdr->OptionalHeader.ImageBase;\r
-\r
- PeHdr->OptionalHeader.ImageBase = (UINTN) BaseAddress;\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 = PeCoffLoader64ImageAddress (ImageContext, RelocDir->VirtualAddress);\r
- RelocBaseEnd = PeCoffLoader64ImageAddress ( \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
- }\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
- FixupBase = PeCoffLoader64ImageAddress (ImageContext, RelocBase->VirtualAddress);\r
- if ((CHAR8 *) RelocEnd < (CHAR8 *)((UINTN)ImageContext->ImageAddress) || \r
- (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress + \r
- (UINTN)ImageContext->ImageSize)) {\r
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
- return EFI_LOAD_ERROR;\r
- }\r
-\r
- //\r
- // Run this relocation record\r
- //\r
- while (Reloc < RelocEnd) {\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_HIGH:\r
- F16 = (UINT16 *) Fixup;\r
- *F16 = (UINT16) (*F16 + ((UINT16) ((UINT32) Adjust >> 16)));\r
- if (FixupData != NULL) {\r
- *(UINT16 *) FixupData = *F16;\r
- FixupData = FixupData + sizeof(UINT16);\r
- }\r
- break;\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
- 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
- }\r
- break;\r
- case EFI_IMAGE_REL_BASED_HIGHADJ:\r
- // Return the same EFI_UNSUPPORTED return code as \r
- // PeCoffLoader64RelocateImageEx() returns if it does not recognize\r
- // the relocation type.\r
- //\r
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
- return EFI_UNSUPPORTED;\r
- default:\r
- Status = PeCoffLoader64RelocateImageEx (Reloc, Fixup, &FixupData, Adjust);\r
- if (EFI_ERROR (Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;\r
- return Status;\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
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-EFI_STATUS\r
-PeCoffLoader64RelocateImageEx (\r
- IN UINT16 *Reloc,\r
- IN OUT CHAR8 *Fixup, \r
- IN OUT CHAR8 **FixupData,\r
- IN UINT64 Adjust\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Performs an IA-32 specific relocation fixup\r
-\r
-Arguments:\r
- Reloc - Pointer to the relocation record\r
- Fixup - Pointer to the address to fix up\r
- FixupData - Pointer to a buffer to log the fixups\r
- Adjust - The offset to adjust the fixup\r
-\r
-Returns:\r
- None\r
-\r
---*/\r
-{\r
- UINT64 *F64;\r
-\r
- switch ((*Reloc) >> 12) {\r
-\r
- case EFI_IMAGE_REL_BASED_DIR64:\r
- F64 = (UINT64 *) Fixup;\r
- *F64 = *F64 + (UINT64) Adjust;\r
- if (*FixupData != NULL) {\r
- *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));\r
- *(UINT64 *)(*FixupData) = *F64;\r
- *FixupData = *FixupData + sizeof(UINT64);\r
- }\r
- break;\r
-\r
- default:\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64LoadImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Loads a PE/COFF image into memory\r
-\r
-Arguments:\r
- ImageContext - Contains information on image to load into memory\r
-\r
-Returns:\r
- EFI_SUCCESS if the PE/COFF image was loaded\r
- EFI_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer\r
- EFI_LOAD_ERROR if the image is a runtime driver with no relocations\r
- EFI_INVALID_PARAMETER if the image address is invalid\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- EFI_IMAGE_NT_HEADERS64 *PeHdr;\r
- PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;\r
- EFI_IMAGE_SECTION_HEADER *FirstSection;\r
- EFI_IMAGE_SECTION_HEADER *Section;\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
- //\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
- // can from the original image, and then use that to make sure everything\r
- // is legit.\r
- //\r
- CopyMem (\r
- &CheckContext, \r
- ImageContext, \r
- sizeof (PE_COFF_LOADER_IMAGE_CONTEXT)\r
- );\r
- \r
- Status = PeCoffLoader64GetImageInfo (\r
- This,\r
- &CheckContext \r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Make sure there is enough allocated space for the image being loaded\r
- //\r
- if (ImageContext->ImageSize < CheckContext.ImageSize) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_SIZE;\r
- return EFI_BUFFER_TOO_SMALL;\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
- //\r
- if (CheckContext.RelocationsStripped == TRUE) {\r
- //\r
- // If the image does not contain relocations and it is a runtime driver \r
- // then return an error.\r
- //\r
- if (CheckContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;\r
- return EFI_LOAD_ERROR;\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
- //\r
- if (CheckContext.ImageAddress != ImageContext->ImageAddress) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
-\r
- //\r
- // Make sure the allocated space has the proper section alignment\r
- //\r
- if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {\r
- ImageContext->ImageError = IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // Read the entire PE/COFF header into memory\r
- //\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle, \r
- 0, \r
- &ImageContext->SizeOfHeaders, \r
- (VOID *)(UINTN)ImageContext->ImageAddress\r
- );\r
- if (EFI_ERROR(Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return EFI_LOAD_ERROR;\r
- }\r
-\r
- PeHdr = (EFI_IMAGE_NT_HEADERS64 *)\r
- ((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);\r
-\r
- //\r
- // Load each section of the image\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
-\r
- Section = FirstSection;\r
- for ( Index=0, MaxEnd = NULL; \r
- Index < PeHdr->FileHeader.NumberOfSections; \r
- Index += 1) {\r
-\r
- //\r
- // Compute sections address\r
- //\r
- Base = PeCoffLoader64ImageAddress (ImageContext, Section->VirtualAddress);\r
- End = PeCoffLoader64ImageAddress (\r
- ImageContext, \r
- Section->VirtualAddress + Section->Misc.VirtualSize - 1);\r
- if (End > MaxEnd) {\r
- MaxEnd = End;\r
- }\r
- //\r
- // If the base start or end address resolved to 0, then fail.\r
- //\r
- if (!Base || !End) {\r
- ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;\r
- return EFI_LOAD_ERROR;\r
- }\r
-\r
- //\r
- // Read the section, we can resume the length of PE image can't \r
- // exceed the max 32bit integer\r
- //\r
- Size = (UINTN) Section->Misc.VirtualSize;\r
- if ((Size == 0) || (Size > Section->SizeOfRawData)) {\r
- Size = (UINTN) Section->SizeOfRawData;\r
- }\r
- if (Section->SizeOfRawData) {\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle, \r
- Section->PointerToRawData, \r
- &Size, \r
- Base);\r
- if (EFI_ERROR(Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return Status;\r
- }\r
- }\r
-\r
- //\r
- // If raw size is less then virt size, zero fill the remaining\r
- //\r
-\r
- if (Size < Section->Misc.VirtualSize) {\r
- ZeroMem (Base + Size, Section->Misc.VirtualSize - (UINTN)Size);\r
- }\r
-\r
- //\r
- // Next Section\r
- //\r
- Section += 1;\r
- }\r
-\r
- //\r
- // Get image's entry point\r
- //\r
- ImageContext->EntryPoint = \r
- (EFI_PHYSICAL_ADDRESS) (UINTN) PeCoffLoader64ImageAddress (\r
- ImageContext, \r
- PeHdr->OptionalHeader.AddressOfEntryPoint\r
- );\r
-\r
- //\r
- // Determine the size of the fixup data\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
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)\r
- &PeHdr->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];\r
- ImageContext->FixupDataSize = \r
- DirectoryEntry->Size / sizeof(UINT16) * sizeof(UINTN);\r
- } else {\r
- ImageContext->FixupDataSize = 0;\r
- }\r
- //\r
- // Consumer must allocate a buffer for the relocation fixup log.\r
- // Only used for runtime drivers.\r
- //\r
- ImageContext->FixupData = NULL;\r
-\r
- //\r
- // Load the Codeview info if present\r
- //\r
- if (ImageContext->DebugDirectoryEntryRva != 0) {\r
- DebugEntry = PeCoffLoader64ImageAddress (\r
- ImageContext, \r
- ImageContext->DebugDirectoryEntryRva\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
- }\r
- if (TempDebugEntryRva != 0) {\r
- ImageContext->CodeView = PeCoffLoader64ImageAddress (ImageContext, TempDebugEntryRva);\r
- if (ImageContext->CodeView == NULL) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return EFI_LOAD_ERROR;\r
- }\r
-\r
- if (DebugEntry->RVA == 0) {\r
- Size = (UINTN) DebugEntry->SizeOfData;\r
- Status = ImageContext->ImageRead (\r
- ImageContext->Handle, \r
- DebugEntry->FileOffset,\r
- &Size, \r
- ImageContext->CodeView\r
- );\r
- if (EFI_ERROR(Status)) {\r
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;\r
- return EFI_LOAD_ERROR;\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
- break;\r
- case CODEVIEW_SIGNATURE_RSDS:\r
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);\r
- break;\r
- default:\r
- break;\r
- }\r
- }\r
- }\r
- }\r
- \r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PeCoffLoader64UnloadImage (\r
- IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,\r
- IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
- )\r
-/*++\r
-\r
-Routine Description:\r
- Unload of images is not supported\r
-\r
-Arguments:\r
- ImageContext - The image to unload\r
-\r
-Returns:\r
- EFI_SUCCESS\r
-\r
---*/\r
-{\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_PEI_PE_COFF_LOADER_PROTOCOL *\r
-EFIAPI\r
-GetPeCoffLoaderX64Protocol (\r
- )\r
-{\r
- return &mPeCoffLoaderX64;\r
-}\r
-\r
-\r
projects / mirror_edk2.git / commitdiff