diff options
Diffstat (limited to 'BaseTools/Source/C/Common/BasePeCoff.c')
| -rw-r--r-- | BaseTools/Source/C/Common/BasePeCoff.c | 1476 |
1 files changed, 0 insertions, 1476 deletions
diff --git a/BaseTools/Source/C/Common/BasePeCoff.c b/BaseTools/Source/C/Common/BasePeCoff.c deleted file mode 100644 index 692663d0e4..0000000000 --- a/BaseTools/Source/C/Common/BasePeCoff.c +++ /dev/null @@ -1,1476 +0,0 @@ -/** @file
-
- Functions to get info and load PE/COFF image.
-
-Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
-Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include <Common/UefiBaseTypes.h>
-#include <CommonLib.h>
-#include <IndustryStandard/PeImage.h>
-#include "PeCoffLib.h"
-
-typedef union {
- VOID *Header;
- EFI_IMAGE_OPTIONAL_HEADER32 *Optional32;
- EFI_IMAGE_OPTIONAL_HEADER64 *Optional64;
-} EFI_IMAGE_OPTIONAL_HEADER_POINTER;
-
-STATIC
-RETURN_STATUS
-PeCoffLoaderGetPeHeader (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- OUT EFI_IMAGE_OPTIONAL_HEADER_UNION **PeHdr,
- OUT EFI_TE_IMAGE_HEADER **TeHdr
- );
-
-STATIC
-RETURN_STATUS
-PeCoffLoaderCheckImageType (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- IN EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr,
- IN EFI_TE_IMAGE_HEADER *TeHdr
- );
-
-STATIC
-VOID *
-PeCoffLoaderImageAddress (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- IN UINTN Address
- );
-
-RETURN_STATUS
-PeCoffLoaderRelocateIa32Image (
- IN UINT16 *Reloc,
- IN OUT CHAR8 *Fixup,
- IN OUT CHAR8 **FixupData,
- IN UINT64 Adjust
- );
-
-RETURN_STATUS
-PeCoffLoaderRelocateIpfImage (
- IN UINT16 *Reloc,
- IN OUT CHAR8 *Fixup,
- IN OUT CHAR8 **FixupData,
- IN UINT64 Adjust
- );
-
-RETURN_STATUS
-PeCoffLoaderRelocateArmImage (
- IN UINT16 **Reloc,
- IN OUT CHAR8 *Fixup,
- IN OUT CHAR8 **FixupData,
- IN UINT64 Adjust
- );
-
-STATIC
-RETURN_STATUS
-PeCoffLoaderGetPeHeader (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- OUT EFI_IMAGE_OPTIONAL_HEADER_UNION **PeHdr,
- OUT EFI_TE_IMAGE_HEADER **TeHdr
- )
-/*++
-
-Routine Description:
-
- Retrieves the PE or TE Header from a PE/COFF or TE image
-
-Arguments:
-
- ImageContext - The context of the image being loaded
-
- PeHdr - The buffer in which to return the PE header
-
- TeHdr - The buffer in which to return the TE header
-
-Returns:
-
- RETURN_SUCCESS if the PE or TE Header is read,
- Otherwise, the error status from reading the PE/COFF or TE image using the ImageRead function.
-
---*/
-{
- RETURN_STATUS Status;
- EFI_IMAGE_DOS_HEADER DosHdr;
- UINTN Size;
-
- ImageContext->IsTeImage = FALSE;
- //
- // Read the DOS image headers
- //
- Size = sizeof (EFI_IMAGE_DOS_HEADER);
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- 0,
- &Size,
- &DosHdr
- );
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
-
- ImageContext->PeCoffHeaderOffset = 0;
- if (DosHdr.e_magic == EFI_IMAGE_DOS_SIGNATURE) {
- //
- // DOS image header is present, so read the PE header after the DOS image header
- //
- ImageContext->PeCoffHeaderOffset = DosHdr.e_lfanew;
- }
- //
- // Get the PE/COFF Header pointer
- //
- *PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *) ((UINTN)ImageContext->Handle + ImageContext->PeCoffHeaderOffset);
- if ((*PeHdr)->Pe32.Signature != EFI_IMAGE_NT_SIGNATURE) {
- //
- // Check the PE/COFF Header Signature. If not, then try to get a TE header
- //
- *TeHdr = (EFI_TE_IMAGE_HEADER *)*PeHdr;
- if ((*TeHdr)->Signature != EFI_TE_IMAGE_HEADER_SIGNATURE) {
- return RETURN_UNSUPPORTED;
- }
- ImageContext->IsTeImage = TRUE;
- }
-
- return RETURN_SUCCESS;
-}
-
-STATIC
-RETURN_STATUS
-PeCoffLoaderCheckImageType (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- IN EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr,
- IN EFI_TE_IMAGE_HEADER *TeHdr
- )
-/*++
-
-Routine Description:
-
- Checks the PE or TE header of a PE/COFF or TE image to determine if it supported
-
-Arguments:
-
- ImageContext - The context of the image being loaded
-
- PeHdr - The buffer in which to return the PE header
-
- TeHdr - The buffer in which to return the TE header
-
-Returns:
-
- RETURN_SUCCESS if the PE/COFF or TE image is supported
- RETURN_UNSUPPORTED of the PE/COFF or TE image is not supported.
-
---*/
-{
- //
- // See if the machine type is supported.
- // We support a native machine type (IA-32/Itanium-based)
- //
- if (ImageContext->IsTeImage == FALSE) {
- ImageContext->Machine = PeHdr->Pe32.FileHeader.Machine;
- } else {
- ImageContext->Machine = TeHdr->Machine;
- }
-
- if (ImageContext->Machine != EFI_IMAGE_MACHINE_IA32 && \
- ImageContext->Machine != EFI_IMAGE_MACHINE_IA64 && \
- ImageContext->Machine != EFI_IMAGE_MACHINE_X64 && \
- ImageContext->Machine != EFI_IMAGE_MACHINE_ARMT && \
- ImageContext->Machine != EFI_IMAGE_MACHINE_EBC && \
- ImageContext->Machine != EFI_IMAGE_MACHINE_AARCH64) {
- if (ImageContext->Machine == IMAGE_FILE_MACHINE_ARM) {
- //
- // There are two types of ARM images. Pure ARM and ARM/Thumb.
- // If we see the ARM say it is the ARM/Thumb so there is only
- // a single machine type we need to check for ARM.
- //
- ImageContext->Machine = EFI_IMAGE_MACHINE_ARMT;
- if (ImageContext->IsTeImage == FALSE) {
- PeHdr->Pe32.FileHeader.Machine = ImageContext->Machine;
- } else {
- TeHdr->Machine = ImageContext->Machine;
- }
-
- } else {
- //
- // unsupported PeImage machine type
- //
- return RETURN_UNSUPPORTED;
- }
- }
-
- //
- // See if the image type is supported. We support EFI Applications,
- // EFI Boot Service Drivers, EFI Runtime Drivers and EFI SAL Drivers.
- //
- if (ImageContext->IsTeImage == FALSE) {
- ImageContext->ImageType = PeHdr->Pe32.OptionalHeader.Subsystem;
- } else {
- ImageContext->ImageType = (UINT16) (TeHdr->Subsystem);
- }
-
- if (ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION && \
- ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER && \
- ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER && \
- ImageContext->ImageType != EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER) {
- //
- // upsupported PeImage subsystem type
- //
- return RETURN_UNSUPPORTED;
- }
-
- return RETURN_SUCCESS;
-}
-
-RETURN_STATUS
-EFIAPI
-PeCoffLoaderGetImageInfo (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
- )
-/*++
-
-Routine Description:
-
- Retrieves information on a PE/COFF image
-
-Arguments:
-
- This - Calling context
- ImageContext - The context of the image being loaded
-
-Returns:
-
- RETURN_SUCCESS - The information on the PE/COFF image was collected.
- RETURN_INVALID_PARAMETER - ImageContext is NULL.
- RETURN_UNSUPPORTED - The PE/COFF image is not supported.
- Otherwise - The error status from reading the PE/COFF image using the
- ImageContext->ImageRead() function
-
---*/
-{
- RETURN_STATUS Status;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;
- EFI_TE_IMAGE_HEADER *TeHdr;
- EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;
- UINTN Size;
- UINTN Index;
- UINTN DebugDirectoryEntryRva;
- UINTN DebugDirectoryEntryFileOffset;
- UINTN SectionHeaderOffset;
- EFI_IMAGE_SECTION_HEADER SectionHeader;
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY DebugEntry;
- EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;
-
- PeHdr = NULL;
- TeHdr = NULL;
- DebugDirectoryEntry = NULL;
- DebugDirectoryEntryRva = 0;
-
- if (NULL == ImageContext) {
- return RETURN_INVALID_PARAMETER;
- }
- //
- // Assume success
- //
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;
-
- Status = PeCoffLoaderGetPeHeader (ImageContext, &PeHdr, &TeHdr);
- if (RETURN_ERROR (Status)) {
- return Status;
- }
-
- //
- // Verify machine type
- //
- Status = PeCoffLoaderCheckImageType (ImageContext, PeHdr, TeHdr);
- if (RETURN_ERROR (Status)) {
- return Status;
- }
- OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);
-
- //
- // Retrieve the base address of the image
- //
- if (!(ImageContext->IsTeImage)) {
- if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- ImageContext->ImageAddress = (PHYSICAL_ADDRESS) OptionHeader.Optional32->ImageBase;
- } else {
- ImageContext->ImageAddress = (PHYSICAL_ADDRESS) OptionHeader.Optional64->ImageBase;
- }
- } else {
- ImageContext->ImageAddress = (PHYSICAL_ADDRESS) (TeHdr->ImageBase + TeHdr->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER));
- }
- //
- // Initialize the alternate destination address to 0 indicating that it
- // should not be used.
- //
- ImageContext->DestinationAddress = 0;
-
- //
- // Initialize the codeview pointer.
- //
- ImageContext->CodeView = NULL;
- ImageContext->PdbPointer = NULL;
-
- //
- // Three cases with regards to relocations:
- // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable
- // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable
- // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but
- // has no base relocs to apply
- // Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.
- //
- // Look at the file header to determine if relocations have been stripped, and
- // save this info in the image context for later use.
- //
- if ((!(ImageContext->IsTeImage)) && ((PeHdr->Pe32.FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {
- ImageContext->RelocationsStripped = TRUE;
- } else if ((ImageContext->IsTeImage) && (TeHdr->DataDirectory[0].Size == 0) && (TeHdr->DataDirectory[0].VirtualAddress == 0)) {
- ImageContext->RelocationsStripped = TRUE;
- } else {
- ImageContext->RelocationsStripped = FALSE;
- }
-
- if (!(ImageContext->IsTeImage)) {
-
- if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- ImageContext->ImageSize = (UINT64) OptionHeader.Optional32->SizeOfImage;
- ImageContext->SectionAlignment = OptionHeader.Optional32->SectionAlignment;
- ImageContext->SizeOfHeaders = OptionHeader.Optional32->SizeOfHeaders;
-
- //
- // Modify ImageSize to contain .PDB file name if required and initialize
- // PdbRVA field...
- //
- if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {
- DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;
- }
- } else {
- ImageContext->ImageSize = (UINT64) OptionHeader.Optional64->SizeOfImage;
- ImageContext->SectionAlignment = OptionHeader.Optional64->SectionAlignment;
- ImageContext->SizeOfHeaders = OptionHeader.Optional64->SizeOfHeaders;
-
- //
- // Modify ImageSize to contain .PDB file name if required and initialize
- // PdbRVA field...
- //
- if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {
- DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;
- }
- }
-
- if (DebugDirectoryEntryRva != 0) {
- //
- // Determine the file offset of the debug directory... This means we walk
- // the sections to find which section contains the RVA of the debug
- // directory
- //
- DebugDirectoryEntryFileOffset = 0;
-
- SectionHeaderOffset = (UINTN)(
- ImageContext->PeCoffHeaderOffset +
- sizeof (UINT32) +
- sizeof (EFI_IMAGE_FILE_HEADER) +
- PeHdr->Pe32.FileHeader.SizeOfOptionalHeader
- );
-
- for (Index = 0; Index < PeHdr->Pe32.FileHeader.NumberOfSections; Index++) {
- //
- // Read section header from file
- //
- Size = sizeof (EFI_IMAGE_SECTION_HEADER);
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- SectionHeaderOffset,
- &Size,
- &SectionHeader
- );
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
-
- if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&
- DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {
- DebugDirectoryEntryFileOffset =
- DebugDirectoryEntryRva - SectionHeader.VirtualAddress + SectionHeader.PointerToRawData;
- break;
- }
-
- SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);
- }
-
- if (DebugDirectoryEntryFileOffset != 0) {
- for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {
- //
- // Read next debug directory entry
- //
- Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- DebugDirectoryEntryFileOffset + Index,
- &Size,
- &DebugEntry
- );
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
-
- if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
- ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);
- if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {
- ImageContext->ImageSize += DebugEntry.SizeOfData;
- }
-
- return RETURN_SUCCESS;
- }
- }
- }
- }
- } else {
- ImageContext->ImageSize = 0;
- ImageContext->SectionAlignment = 4096;
- ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN) TeHdr->BaseOfCode - (UINTN) TeHdr->StrippedSize;
-
- DebugDirectoryEntry = &TeHdr->DataDirectory[1];
- DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;
- SectionHeaderOffset = (UINTN) (sizeof (EFI_TE_IMAGE_HEADER));
-
- DebugDirectoryEntryFileOffset = 0;
-
- for (Index = 0; Index < TeHdr->NumberOfSections;) {
- //
- // Read section header from file
- //
- Size = sizeof (EFI_IMAGE_SECTION_HEADER);
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- SectionHeaderOffset,
- &Size,
- &SectionHeader
- );
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
-
- if (DebugDirectoryEntryRva >= SectionHeader.VirtualAddress &&
- DebugDirectoryEntryRva < SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize) {
- DebugDirectoryEntryFileOffset = DebugDirectoryEntryRva -
- SectionHeader.VirtualAddress +
- SectionHeader.PointerToRawData +
- sizeof (EFI_TE_IMAGE_HEADER) -
- TeHdr->StrippedSize;
-
- //
- // File offset of the debug directory was found, if this is not the last
- // section, then skip to the last section for calculating the image size.
- //
- if (Index < (UINTN) TeHdr->NumberOfSections - 1) {
- SectionHeaderOffset += (TeHdr->NumberOfSections - 1 - Index) * sizeof (EFI_IMAGE_SECTION_HEADER);
- Index = TeHdr->NumberOfSections - 1;
- continue;
- }
- }
-
- //
- // In Te image header there is not a field to describe the ImageSize.
- // Actually, the ImageSize equals the RVA plus the VirtualSize of
- // the last section mapped into memory (Must be rounded up to
- // a mulitple of Section Alignment). Per the PE/COFF specification, the
- // section headers in the Section Table must appear in order of the RVA
- // values for the corresponding sections. So the ImageSize can be determined
- // by the RVA and the VirtualSize of the last section header in the
- // Section Table.
- //
- if ((++Index) == (UINTN) TeHdr->NumberOfSections) {
- ImageContext->ImageSize = (SectionHeader.VirtualAddress + SectionHeader.Misc.VirtualSize +
- ImageContext->SectionAlignment - 1) & ~(ImageContext->SectionAlignment - 1);
- }
-
- SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);
- }
-
- if (DebugDirectoryEntryFileOffset != 0) {
- for (Index = 0; Index < DebugDirectoryEntry->Size; Index += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) {
- //
- // Read next debug directory entry
- //
- Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- DebugDirectoryEntryFileOffset,
- &Size,
- &DebugEntry
- );
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
-
- if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
- ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index);
- return RETURN_SUCCESS;
- }
- }
- }
- }
-
- return RETURN_SUCCESS;
-}
-
-STATIC
-VOID *
-PeCoffLoaderImageAddress (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
- IN UINTN Address
- )
-/*++
-
-Routine Description:
-
- Converts an image address to the loaded address
-
-Arguments:
-
- ImageContext - The context of the image being loaded
-
- Address - The address to be converted to the loaded address
-
-Returns:
-
- NULL if the address can not be converted, otherwise, the converted address
-
---*/
-{
- if (Address >= ImageContext->ImageSize) {
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;
- return NULL;
- }
-
- return (UINT8 *) ((UINTN) ImageContext->ImageAddress + Address);
-}
-
-RETURN_STATUS
-EFIAPI
-PeCoffLoaderRelocateImage (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
- )
-/*++
-
-Routine Description:
-
- Relocates a PE/COFF image in memory
-
-Arguments:
-
- This - Calling context
-
- ImageContext - Contains information on the loaded image to relocate
-
-Returns:
-
- RETURN_SUCCESS if the PE/COFF image was relocated
- RETURN_LOAD_ERROR if the image is not a valid PE/COFF image
- RETURN_UNSUPPORTED not support
-
---*/
-{
- RETURN_STATUS Status;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;
- EFI_TE_IMAGE_HEADER *TeHdr;
- EFI_IMAGE_DATA_DIRECTORY *RelocDir;
- UINT64 Adjust;
- EFI_IMAGE_BASE_RELOCATION *RelocBase;
- EFI_IMAGE_BASE_RELOCATION *RelocBaseEnd;
- UINT16 *Reloc;
- UINT16 *RelocEnd;
- CHAR8 *Fixup;
- CHAR8 *FixupBase;
- UINT16 *F16;
- UINT32 *F32;
- UINT64 *F64;
- CHAR8 *FixupData;
- PHYSICAL_ADDRESS BaseAddress;
- UINT16 MachineType;
- EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;
-
- PeHdr = NULL;
- TeHdr = NULL;
- //
- // Assume success
- //
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;
-
- //
- // If there are no relocation entries, then we are done
- //
- if (ImageContext->RelocationsStripped) {
- return RETURN_SUCCESS;
- }
-
- //
- // Use DestinationAddress field of ImageContext as the relocation address even if it is 0.
- //
- BaseAddress = ImageContext->DestinationAddress;
-
- if (!(ImageContext->IsTeImage)) {
- PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((UINTN)ImageContext->ImageAddress +
- ImageContext->PeCoffHeaderOffset);
- OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);
- if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- Adjust = (UINT64) BaseAddress - OptionHeader.Optional32->ImageBase;
- OptionHeader.Optional32->ImageBase = (UINT32) BaseAddress;
- MachineType = ImageContext->Machine;
- //
- // Find the relocation block
- //
- // Per the PE/COFF spec, you can't assume that a given data directory
- // is present in the image. You have to check the NumberOfRvaAndSizes in
- // the optional header to verify a desired directory entry is there.
- //
- if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
- RelocDir = &OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
- if ((RelocDir != NULL) && (RelocDir->Size > 0)) {
- RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);
- RelocBaseEnd = PeCoffLoaderImageAddress (
- ImageContext,
- RelocDir->VirtualAddress + RelocDir->Size - 1
- );
- if (RelocBase == NULL || RelocBaseEnd == NULL || RelocBaseEnd < RelocBase) {
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return RETURN_LOAD_ERROR;
- }
- } else {
- //
- // Set base and end to bypass processing below.
- //
- RelocBase = RelocBaseEnd = 0;
- }
- } else {
- //
- // Set base and end to bypass processing below.
- //
- RelocBase = RelocBaseEnd = 0;
- }
- } else {
- Adjust = (UINT64) BaseAddress - OptionHeader.Optional64->ImageBase;
- OptionHeader.Optional64->ImageBase = BaseAddress;
- MachineType = ImageContext->Machine;
- //
- // Find the relocation block
- //
- // Per the PE/COFF spec, you can't assume that a given data directory
- // is present in the image. You have to check the NumberOfRvaAndSizes in
- // the optional header to verify a desired directory entry is there.
- //
- if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
- RelocDir = &OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
- if ((RelocDir != NULL) && (RelocDir->Size > 0)) {
- RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);
- RelocBaseEnd = PeCoffLoaderImageAddress (
- ImageContext,
- RelocDir->VirtualAddress + RelocDir->Size - 1
- );
- if (RelocBase == NULL || RelocBaseEnd == NULL || RelocBaseEnd < RelocBase) {
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return RETURN_LOAD_ERROR;
- }
- } else {
- //
- // Set base and end to bypass processing below.
- //
- RelocBase = RelocBaseEnd = 0;
- }
- } else {
- //
- // Set base and end to bypass processing below.
- //
- RelocBase = RelocBaseEnd = 0;
- }
- }
- } else {
- TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);
- Adjust = (UINT64) (BaseAddress - TeHdr->ImageBase);
- TeHdr->ImageBase = (UINT64) (BaseAddress);
- MachineType = TeHdr->Machine;
-
- //
- // Find the relocation block
- //
- RelocDir = &TeHdr->DataDirectory[0];
- RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(
- ImageContext->ImageAddress +
- RelocDir->VirtualAddress +
- sizeof(EFI_TE_IMAGE_HEADER) -
- TeHdr->StrippedSize
- );
- RelocBaseEnd = (EFI_IMAGE_BASE_RELOCATION *) ((UINTN) RelocBase + (UINTN) RelocDir->Size - 1);
- }
-
- //
- // Run the relocation information and apply the fixups
- //
- FixupData = ImageContext->FixupData;
- while (RelocBase < RelocBaseEnd) {
-
- Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));
- RelocEnd = (UINT16 *) ((CHAR8 *) RelocBase + RelocBase->SizeOfBlock);
- if (!(ImageContext->IsTeImage)) {
- FixupBase = PeCoffLoaderImageAddress (ImageContext, RelocBase->VirtualAddress);
- if (FixupBase == NULL) {
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return RETURN_LOAD_ERROR;
- }
- } else {
- FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +
- RelocBase->VirtualAddress +
- sizeof(EFI_TE_IMAGE_HEADER) -
- TeHdr->StrippedSize
- );
- }
-
- if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||
- (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress +
- (UINTN)ImageContext->ImageSize)) {
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return RETURN_LOAD_ERROR;
- }
-
- //
- // Run this relocation record
- //
- while (Reloc < RelocEnd) {
-
- Fixup = FixupBase + (*Reloc & 0xFFF);
- switch ((*Reloc) >> 12) {
- case EFI_IMAGE_REL_BASED_ABSOLUTE:
- break;
-
- case EFI_IMAGE_REL_BASED_HIGH:
- F16 = (UINT16 *) Fixup;
- *F16 = (UINT16) (*F16 + ((UINT16) ((UINT32) Adjust >> 16)));
- if (FixupData != NULL) {
- *(UINT16 *) FixupData = *F16;
- FixupData = FixupData + sizeof (UINT16);
- }
- break;
-
- case EFI_IMAGE_REL_BASED_LOW:
- F16 = (UINT16 *) Fixup;
- *F16 = (UINT16) (*F16 + (UINT16) Adjust);
- if (FixupData != NULL) {
- *(UINT16 *) FixupData = *F16;
- FixupData = FixupData + sizeof (UINT16);
- }
- break;
-
- case EFI_IMAGE_REL_BASED_HIGHLOW:
- F32 = (UINT32 *) Fixup;
- *F32 = *F32 + (UINT32) Adjust;
- if (FixupData != NULL) {
- FixupData = ALIGN_POINTER (FixupData, sizeof (UINT32));
- *(UINT32 *) FixupData = *F32;
- FixupData = FixupData + sizeof (UINT32);
- }
- break;
-
- case EFI_IMAGE_REL_BASED_DIR64:
- F64 = (UINT64 *) Fixup;
- *F64 = *F64 + (UINT64) Adjust;
- if (FixupData != NULL) {
- FixupData = ALIGN_POINTER (FixupData, sizeof (UINT64));
- *(UINT64 *) FixupData = *F64;
- FixupData = FixupData + sizeof (UINT64);
- }
- break;
-
- case EFI_IMAGE_REL_BASED_HIGHADJ:
- //
- // Return the same EFI_UNSUPPORTED return code as
- // PeCoffLoaderRelocateImageEx() returns if it does not recognize
- // the relocation type.
- //
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return RETURN_UNSUPPORTED;
-
- default:
- switch (MachineType) {
- case EFI_IMAGE_MACHINE_IA32:
- Status = PeCoffLoaderRelocateIa32Image (Reloc, Fixup, &FixupData, Adjust);
- break;
- case EFI_IMAGE_MACHINE_ARMT:
- Status = PeCoffLoaderRelocateArmImage (&Reloc, Fixup, &FixupData, Adjust);
- break;
- case EFI_IMAGE_MACHINE_IA64:
- Status = PeCoffLoaderRelocateIpfImage (Reloc, Fixup, &FixupData, Adjust);
- break;
- default:
- Status = RETURN_UNSUPPORTED;
- break;
- }
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
- return Status;
- }
- }
-
- //
- // Next relocation record
- //
- Reloc += 1;
- }
-
- //
- // Next reloc block
- //
- RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;
- }
-
- return RETURN_SUCCESS;
-}
-
-RETURN_STATUS
-EFIAPI
-PeCoffLoaderLoadImage (
- IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
- )
-/*++
-
-Routine Description:
-
- Loads a PE/COFF image into memory
-
-Arguments:
-
- This - Calling context
-
- ImageContext - Contains information on image to load into memory
-
-Returns:
-
- RETURN_SUCCESS if the PE/COFF image was loaded
- RETURN_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer
- RETURN_LOAD_ERROR if the image is a runtime driver with no relocations
- RETURN_INVALID_PARAMETER if the image address is invalid
-
---*/
-{
- RETURN_STATUS Status;
- EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHdr;
- EFI_TE_IMAGE_HEADER *TeHdr;
- PE_COFF_LOADER_IMAGE_CONTEXT CheckContext;
- EFI_IMAGE_SECTION_HEADER *FirstSection;
- EFI_IMAGE_SECTION_HEADER *Section;
- UINTN NumberOfSections;
- UINTN Index;
- CHAR8 *Base;
- CHAR8 *End;
- CHAR8 *MaxEnd;
- EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;
- UINTN Size;
- UINT32 TempDebugEntryRva;
- EFI_IMAGE_OPTIONAL_HEADER_POINTER OptionHeader;
-
- PeHdr = NULL;
- TeHdr = NULL;
- OptionHeader.Header = NULL;
- //
- // Assume success
- //
- ImageContext->ImageError = IMAGE_ERROR_SUCCESS;
-
- //
- // Copy the provided context info into our local version, get what we
- // can from the original image, and then use that to make sure everything
- // is legit.
- //
- CopyMem (&CheckContext, ImageContext, sizeof (PE_COFF_LOADER_IMAGE_CONTEXT));
-
- Status = PeCoffLoaderGetImageInfo (&CheckContext);
- if (RETURN_ERROR (Status)) {
- return Status;
- }
-
- //
- // Make sure there is enough allocated space for the image being loaded
- //
- if (ImageContext->ImageSize < CheckContext.ImageSize) {
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_SIZE;
- return RETURN_BUFFER_TOO_SMALL;
- }
-
- //
- // If there's no relocations, then make sure it's not a runtime driver,
- // and that it's being loaded at the linked address.
- //
- if (CheckContext.RelocationsStripped) {
- //
- // If the image does not contain relocations and it is a runtime driver
- // then return an error.
- //
- if (CheckContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {
- ImageContext->ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;
- return RETURN_LOAD_ERROR;
- }
- //
- // If the image does not contain relocations, and the requested load address
- // is not the linked address, then return an error.
- //
- if (CheckContext.ImageAddress != ImageContext->ImageAddress) {
- ImageContext->ImageError = IMAGE_ERROR_INVALID_IMAGE_ADDRESS;
- return RETURN_INVALID_PARAMETER;
- }
- }
- //
- // Make sure the allocated space has the proper section alignment
- //
- if (!(ImageContext->IsTeImage)) {
- if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {
- ImageContext->ImageError = IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;
- return RETURN_INVALID_PARAMETER;
- }
- }
- //
- // Read the entire PE/COFF or TE header into memory
- //
- if (!(ImageContext->IsTeImage)) {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- 0,
- &ImageContext->SizeOfHeaders,
- (VOID *) (UINTN) ImageContext->ImageAddress
- );
-
- PeHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)
- ((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);
-
- OptionHeader.Header = (VOID *) &(PeHdr->Pe32.OptionalHeader);
-
- FirstSection = (EFI_IMAGE_SECTION_HEADER *) (
- (UINTN)ImageContext->ImageAddress +
- ImageContext->PeCoffHeaderOffset +
- sizeof(UINT32) +
- sizeof(EFI_IMAGE_FILE_HEADER) +
- PeHdr->Pe32.FileHeader.SizeOfOptionalHeader
- );
- NumberOfSections = (UINTN) (PeHdr->Pe32.FileHeader.NumberOfSections);
- } else {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- 0,
- &ImageContext->SizeOfHeaders,
- (VOID *) (UINTN) ImageContext->ImageAddress
- );
-
- TeHdr = (EFI_TE_IMAGE_HEADER *) (UINTN) (ImageContext->ImageAddress);
-
- FirstSection = (EFI_IMAGE_SECTION_HEADER *) (
- (UINTN)ImageContext->ImageAddress +
- sizeof(EFI_TE_IMAGE_HEADER)
- );
- NumberOfSections = (UINTN) (TeHdr->NumberOfSections);
-
- }
-
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return RETURN_LOAD_ERROR;
- }
-
- //
- // Load each section of the image
- //
- Section = FirstSection;
- for (Index = 0, MaxEnd = NULL; Index < NumberOfSections; Index++) {
-
- //
- // Compute sections address
- //
- Base = PeCoffLoaderImageAddress (ImageContext, Section->VirtualAddress);
- End = PeCoffLoaderImageAddress (
- ImageContext,
- Section->VirtualAddress + Section->Misc.VirtualSize - 1
- );
-
- //
- // If the base start or end address resolved to 0, then fail.
- //
- if ((Base == NULL) || (End == NULL)) {
- ImageContext->ImageError = IMAGE_ERROR_SECTION_NOT_LOADED;
- return RETURN_LOAD_ERROR;
- }
-
-
- if (ImageContext->IsTeImage) {
- Base = (CHAR8 *) ((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);
- End = (CHAR8 *) ((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize);
- }
-
- if (End > MaxEnd) {
- MaxEnd = End;
- }
-
- //
- // Read the section
- //
- Size = (UINTN) Section->Misc.VirtualSize;
- if ((Size == 0) || (Size > Section->SizeOfRawData)) {
- Size = (UINTN) Section->SizeOfRawData;
- }
-
- if (Section->SizeOfRawData) {
- if (!(ImageContext->IsTeImage)) {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- Section->PointerToRawData,
- &Size,
- Base
- );
- } else {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- Section->PointerToRawData + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN) TeHdr->StrippedSize,
- &Size,
- Base
- );
- }
-
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return Status;
- }
- }
-
- //
- // If raw size is less then virt size, zero fill the remaining
- //
-
- if (Size < Section->Misc.VirtualSize) {
- ZeroMem (Base + Size, Section->Misc.VirtualSize - Size);
- }
-
- //
- // Next Section
- //
- Section += 1;
- }
-
- //
- // Get image's entry point
- //
- if (!(ImageContext->IsTeImage)) {
- ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (UINTN) PeCoffLoaderImageAddress (
- ImageContext,
- PeHdr->Pe32.OptionalHeader.AddressOfEntryPoint
- );
- } else {
- ImageContext->EntryPoint = (PHYSICAL_ADDRESS) (
- (UINTN)ImageContext->ImageAddress +
- (UINTN)TeHdr->AddressOfEntryPoint +
- (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -
- (UINTN) TeHdr->StrippedSize
- );
- }
-
- //
- // Determine the size of the fixup data
- //
- // Per the PE/COFF spec, you can't assume that a given data directory
- // is present in the image. You have to check the NumberOfRvaAndSizes in
- // the optional header to verify a desired directory entry is there.
- //
- if (!(ImageContext->IsTeImage)) {
- if (PeHdr->Pe32.OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- if (OptionHeader.Optional32->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)
- &OptionHeader.Optional32->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
- ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);
- } else {
- ImageContext->FixupDataSize = 0;
- }
- } else {
- if (OptionHeader.Optional64->NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)
- &OptionHeader.Optional64->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
- ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);
- } else {
- ImageContext->FixupDataSize = 0;
- }
- }
- } else {
- DirectoryEntry = &TeHdr->DataDirectory[0];
- ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);
- }
- //
- // Consumer must allocate a buffer for the relocation fixup log.
- // Only used for runtime drivers.
- //
- ImageContext->FixupData = NULL;
-
- //
- // Load the Codeview info if present
- //
- if (ImageContext->DebugDirectoryEntryRva != 0) {
- if (!(ImageContext->IsTeImage)) {
- DebugEntry = PeCoffLoaderImageAddress (
- ImageContext,
- ImageContext->DebugDirectoryEntryRva
- );
- } else {
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)(UINTN)(
- ImageContext->ImageAddress +
- ImageContext->DebugDirectoryEntryRva +
- sizeof(EFI_TE_IMAGE_HEADER) -
- TeHdr->StrippedSize
- );
- }
-
- if (DebugEntry != NULL) {
- TempDebugEntryRva = DebugEntry->RVA;
- if (DebugEntry->RVA == 0 && DebugEntry->FileOffset != 0) {
- Section--;
- if ((UINTN) Section->SizeOfRawData < Section->Misc.VirtualSize) {
- TempDebugEntryRva = Section->VirtualAddress + Section->Misc.VirtualSize;
- } else {
- TempDebugEntryRva = Section->VirtualAddress + Section->SizeOfRawData;
- }
- }
-
- if (TempDebugEntryRva != 0) {
- if (!(ImageContext->IsTeImage)) {
- ImageContext->CodeView = PeCoffLoaderImageAddress (ImageContext, TempDebugEntryRva);
- } else {
- ImageContext->CodeView = (VOID *)(
- (UINTN)ImageContext->ImageAddress +
- (UINTN)TempDebugEntryRva +
- (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -
- (UINTN) TeHdr->StrippedSize
- );
- }
-
- if (ImageContext->CodeView == NULL) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return RETURN_LOAD_ERROR;
- }
-
- if (DebugEntry->RVA == 0) {
- Size = DebugEntry->SizeOfData;
- if (!(ImageContext->IsTeImage)) {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- DebugEntry->FileOffset,
- &Size,
- ImageContext->CodeView
- );
- } else {
- Status = ImageContext->ImageRead (
- ImageContext->Handle,
- DebugEntry->FileOffset + sizeof (EFI_TE_IMAGE_HEADER) - TeHdr->StrippedSize,
- &Size,
- ImageContext->CodeView
- );
- //
- // Should we apply fix up to this field according to the size difference between PE and TE?
- // Because now we maintain TE header fields unfixed, this field will also remain as they are
- // in original PE image.
- //
- }
-
- if (RETURN_ERROR (Status)) {
- ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
- return RETURN_LOAD_ERROR;
- }
-
- DebugEntry->RVA = TempDebugEntryRva;
- }
-
- switch (*(UINT32 *) ImageContext->CodeView) {
- case CODEVIEW_SIGNATURE_NB10:
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);
- break;
-
- case CODEVIEW_SIGNATURE_RSDS:
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);
- break;
-
- case CODEVIEW_SIGNATURE_MTOC:
- ImageContext->PdbPointer = (CHAR8 *) ImageContext->CodeView + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY);
-
- default:
- break;
- }
- }
- }
- }
-
- return Status;
-}
-
-/**
- Returns a pointer to the PDB file name for a raw PE/COFF image that is not
- loaded into system memory with the PE/COFF Loader Library functions.
-
- Returns the PDB file name for the PE/COFF image specified by Pe32Data. If
- the PE/COFF image specified by Pe32Data is not a valid, then NULL is
- returned. If the PE/COFF image specified by Pe32Data does not contain a
- debug directory entry, then NULL is returned. If the debug directory entry
- in the PE/COFF image specified by Pe32Data does not contain a PDB file name,
- then NULL is returned.
- If Pe32Data is NULL, then return NULL.
-
- @param Pe32Data Pointer to the PE/COFF image that is loaded in system
- memory.
-
- @return The PDB file name for the PE/COFF image specified by Pe32Data or NULL
- if it cannot be retrieved.
-
-**/
-VOID *
-EFIAPI
-PeCoffLoaderGetPdbPointer (
- IN VOID *Pe32Data
- )
-{
- EFI_IMAGE_DOS_HEADER *DosHdr;
- EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
- EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;
- UINTN DirCount;
- VOID *CodeViewEntryPointer;
- INTN TEImageAdjust;
- UINT32 NumberOfRvaAndSizes;
- UINT16 Magic;
- EFI_IMAGE_SECTION_HEADER *SectionHeader;
- UINT32 Index, Index1;
-
- if (Pe32Data == NULL) {
- return NULL;
- }
-
- TEImageAdjust = 0;
- DirectoryEntry = NULL;
- DebugEntry = NULL;
- NumberOfRvaAndSizes = 0;
- Index = 0;
- Index1 = 0;
- SectionHeader = NULL;
-
- DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
- if (EFI_IMAGE_DOS_SIGNATURE == DosHdr->e_magic) {
- //
- // DOS image header is present, so read the PE header after the DOS image header.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
- } else {
- //
- // DOS image header is not present, so PE header is at the image base.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
- }
-
- if (EFI_TE_IMAGE_HEADER_SIGNATURE == Hdr.Te->Signature) {
- if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {
- DirectoryEntry = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];
- TEImageAdjust = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;
-
- //
- // Get the DebugEntry offset in the raw data image.
- //
- SectionHeader = (EFI_IMAGE_SECTION_HEADER *) (Hdr.Te + 1);
- Index = Hdr.Te->NumberOfSections;
- for (Index1 = 0; Index1 < Index; Index1 ++) {
- if ((DirectoryEntry->VirtualAddress >= SectionHeader[Index1].VirtualAddress) &&
- (DirectoryEntry->VirtualAddress < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +
- DirectoryEntry->VirtualAddress -
- SectionHeader [Index1].VirtualAddress +
- SectionHeader [Index1].PointerToRawData +
- TEImageAdjust);
- break;
- }
- }
- }
- } else if (EFI_IMAGE_NT_SIGNATURE == Hdr.Pe32->Signature) {
- //
- // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.
- // It is due to backward-compatibility, for some system might
- // generate PE32+ image with PE32 Magic.
- //
- switch (Hdr.Pe32->FileHeader.Machine) {
- case EFI_IMAGE_MACHINE_IA32:
- case EFI_IMAGE_MACHINE_ARMT:
- //
- // Assume PE32 image with IA32 Machine field.
- //
- Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
- break;
- case EFI_IMAGE_MACHINE_X64:
- case EFI_IMAGE_MACHINE_IPF:
- //
- // Assume PE32+ image with X64 or IPF Machine field
- //
- Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
- break;
- default:
- //
- // For unknow Machine field, use Magic in optional Header
- //
- Magic = Hdr.Pe32->OptionalHeader.Magic;
- }
-
- SectionHeader = (EFI_IMAGE_SECTION_HEADER *) (
- (UINT8 *) Hdr.Pe32 +
- sizeof (UINT32) +
- sizeof (EFI_IMAGE_FILE_HEADER) +
- Hdr.Pe32->FileHeader.SizeOfOptionalHeader
- );
- Index = Hdr.Pe32->FileHeader.NumberOfSections;
-
- if (EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC == Magic) {
- //
- // Use PE32 offset get Debug Directory Entry
- //
- NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- } else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
- //
- // Use PE32+ offset get Debug Directory Entry
- //
- NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- }
-
- if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG || DirectoryEntry->VirtualAddress == 0) {
- DirectoryEntry = NULL;
- DebugEntry = NULL;
- } else {
- //
- // Get the DebugEntry offset in the raw data image.
- //
- for (Index1 = 0; Index1 < Index; Index1 ++) {
- if ((DirectoryEntry->VirtualAddress >= SectionHeader[Index1].VirtualAddress) &&
- (DirectoryEntry->VirtualAddress < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) (
- (UINTN) Pe32Data +
- DirectoryEntry->VirtualAddress -
- SectionHeader[Index1].VirtualAddress +
- SectionHeader[Index1].PointerToRawData);
- break;
- }
- }
- }
- } else {
- return NULL;
- }
-
- if (NULL == DebugEntry || NULL == DirectoryEntry) {
- return NULL;
- }
-
- //
- // Scan the directory to find the debug entry.
- //
- for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {
- if (EFI_IMAGE_DEBUG_TYPE_CODEVIEW == DebugEntry->Type) {
- if (DebugEntry->SizeOfData > 0) {
- //
- // Get the DebugEntry offset in the raw data image.
- //
- CodeViewEntryPointer = NULL;
- for (Index1 = 0; Index1 < Index; Index1 ++) {
- if ((DebugEntry->RVA >= SectionHeader[Index1].VirtualAddress) &&
- (DebugEntry->RVA < (SectionHeader[Index1].VirtualAddress + SectionHeader[Index1].Misc.VirtualSize))) {
- CodeViewEntryPointer = (VOID *) (
- ((UINTN)Pe32Data) +
- (UINTN) DebugEntry->RVA -
- SectionHeader[Index1].VirtualAddress +
- SectionHeader[Index1].PointerToRawData +
- (UINTN)TEImageAdjust);
- break;
- }
- }
- if (Index1 >= Index) {
- //
- // Can't find CodeViewEntryPointer in raw PE/COFF image.
- //
- continue;
- }
- switch (* (UINT32 *) CodeViewEntryPointer) {
- case CODEVIEW_SIGNATURE_NB10:
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));
- case CODEVIEW_SIGNATURE_RSDS:
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));
- case CODEVIEW_SIGNATURE_MTOC:
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));
- default:
- break;
- }
- }
- }
- }
-
- return NULL;
-}
-
-
-RETURN_STATUS
-EFIAPI
-PeCoffLoaderGetEntryPoint (
- IN VOID *Pe32Data,
- OUT VOID **EntryPoint,
- OUT VOID **BaseOfImage
- )
-{
- EFI_IMAGE_DOS_HEADER *DosHdr;
- EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
-
- DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
- if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
- //
- // DOS image header is present, so read the PE header after the DOS image header.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
- } else {
- //
- // DOS image header is not present, so PE header is at the image base.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
- }
-
- //
- // Calculate the entry point relative to the start of the image.
- // AddressOfEntryPoint is common for PE32 & PE32+
- //
- if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
- *BaseOfImage = (VOID *)(UINTN)(Hdr.Te->ImageBase + Hdr.Te->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER));
- *EntryPoint = (VOID *)((UINTN)*BaseOfImage + (Hdr.Te->AddressOfEntryPoint & 0x0ffffffff) + sizeof(EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize);
- return RETURN_SUCCESS;
- } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
- *EntryPoint = (VOID *)(UINTN)Hdr.Pe32->OptionalHeader.AddressOfEntryPoint;
- if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- *BaseOfImage = (VOID *)(UINTN)Hdr.Pe32->OptionalHeader.ImageBase;
- } else {
- *BaseOfImage = (VOID *)(UINTN)Hdr.Pe32Plus->OptionalHeader.ImageBase;
- }
- *EntryPoint = (VOID *)(UINTN)((UINTN)*EntryPoint + (UINTN)*BaseOfImage);
- return RETURN_SUCCESS;
- }
-
- return RETURN_UNSUPPORTED;
-}
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