diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeCoffLoader.c')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeCoffLoader.c | 1387 |
1 files changed, 1387 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeCoffLoader.c b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeCoffLoader.c new file mode 100644 index 0000000000..c276aa8bda --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeCoffLoader.c @@ -0,0 +1,1387 @@ +/*++
+
+Copyright (c) 2005 - 2007, Intel Corporation
+All rights reserved. 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.
+
+Module Name:
+
+ PeCoffLoader.c
+
+Abstract:
+
+ Tiano PE/COFF loader
+
+Revision History
+
+--*/
+
+#include "Tiano.h"
+#include "Pei.h"
+#include "PeiLib.h"
+#include "PeCoffLoaderEx.h"
+
+#ifdef EFI_NT_EMULATOR
+#include "peilib.h"
+#include "EfiHobLib.h"
+#include EFI_PPI_DEFINITION (NtLoadAsDll)
+#endif
+
+STATIC
+EFI_STATUS
+PeCoffLoaderGetPeHeader (
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
+ OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr
+ );
+
+STATIC
+VOID*
+PeCoffLoaderImageAddress (
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
+ IN UINTN Address
+ );
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderGetImageInfo (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ );
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderRelocateImage (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ );
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderLoadImage (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ );
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderUnloadImage (
+ IN EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ );
+
+#if defined (EFI_DEBUG_ITP_BREAK) && !defined (_CONSOLE)
+VOID
+AsmEfiSetBreakSupport (
+ IN UINTN LoadAddr
+ );
+#endif
+
+EFI_PEI_PE_COFF_LOADER_PROTOCOL mPeCoffLoader = {
+ PeCoffLoaderGetImageInfo,
+ PeCoffLoaderLoadImage,
+ PeCoffLoaderRelocateImage,
+ PeCoffLoaderUnloadImage
+};
+
+#ifdef EFI_NT_EMULATOR
+EFI_NT_LOAD_AS_DLL_PPI *mPeCoffLoaderWinNtLoadAsDll = NULL;
+#endif
+
+EFI_STATUS
+InstallEfiPeiPeCoffLoader (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN OUT EFI_PEI_PE_COFF_LOADER_PROTOCOL **This,
+ IN EFI_PEI_PPI_DESCRIPTOR *ThisPpi
+ )
+/*++
+
+Routine Description:
+
+ Install PE/COFF loader PPI
+
+Arguments:
+
+ PeiServices - General purpose services available to every PEIM
+
+ This - Pointer to get Pei PE coff loader protocol as output
+
+ ThisPpi - Passed in as EFI_NT_LOAD_AS_DLL_PPI on NT_EMULATOR platform
+
+Returns:
+
+ EFI_SUCCESS
+
+--*/
+{
+ EFI_STATUS Status;
+
+ Status = EFI_SUCCESS;
+
+#ifdef EFI_NT_EMULATOR
+ //
+ // For use by PEI Core and Modules
+ //
+ if (NULL != PeiServices) {
+ Status = (**PeiServices).LocatePpi (
+ PeiServices,
+ &gEfiNtLoadAsDllPpiGuid,
+ 0,
+ NULL,
+ &mPeCoffLoaderWinNtLoadAsDll
+ );
+ } else {
+ //
+ // Now in SecMain or ERM usage, bind appropriately
+ //
+ PEI_ASSERT (PeiServices, (NULL != ThisPpi));
+
+ mPeCoffLoaderWinNtLoadAsDll = (EFI_NT_LOAD_AS_DLL_PPI *) ThisPpi;
+ PEI_ASSERT (PeiServices, (NULL != mPeCoffLoaderWinNtLoadAsDll));
+ }
+#endif
+
+ if (NULL != This) {
+ *This = &mPeCoffLoader;
+ }
+
+ return Status;
+}
+
+STATIC
+EFI_STATUS
+PeCoffLoaderGetPeHeader (
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,
+ OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr
+ )
+/*++
+
+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 PE32, PE32+, or TE header
+
+Returns:
+
+ EFI_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.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_IMAGE_DOS_HEADER DosHdr;
+ UINTN Size;
+ UINT16 Magic;
+
+ //
+ // Read the DOS image header to check for it's existance
+ //
+ Size = sizeof (EFI_IMAGE_DOS_HEADER);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ 0,
+ &Size,
+ &DosHdr
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_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;
+ }
+
+ //
+ // Read the PE/COFF Header. For PE32 (32-bit) this will read in too much
+ // data, but that should not hurt anythine. Hdr.Pe32->OptionalHeader.Magic
+ // determins if this is a PE32 or PE32+ image. The magic is in the same
+ // location in both images.
+ //
+ Size = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ ImageContext->PeCoffHeaderOffset,
+ &Size,
+ Hdr.Pe32
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return Status;
+ }
+
+ //
+ // Use Signature to figure out if we understand the image format
+ //
+ if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+ ImageContext->IsTeImage = TRUE;
+ ImageContext->Machine = Hdr.Te->Machine;
+ ImageContext->ImageType = (UINT16)(Hdr.Te->Subsystem);
+ ImageContext->ImageSize = 0;
+ ImageContext->SectionAlignment = 4096;
+ ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;
+
+ } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+ ImageContext->IsTeImage = FALSE;
+ ImageContext->Machine = Hdr.Pe32->FileHeader.Machine;
+
+ //
+ // NOTE: We use Machine to identify PE32/PE32+, instead of Magic.
+ // It is for backward-compatibility consideration, because
+ // some system will generate PE32+ image with PE32 Magic.
+ //
+ if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA32) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_X64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else {
+ Magic = Hdr.Pe32->OptionalHeader.Magic;
+ }
+
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC ||
+ Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
+ //
+ // PE32 and PE32+ have the same offset for these fields.
+ // We use PE32 for both PE32 and PE32+ headers here.
+ //
+ ImageContext->ImageType = Hdr.Pe32->OptionalHeader.Subsystem;
+ ImageContext->ImageSize = (UINT64)Hdr.Pe32->OptionalHeader.SizeOfImage;
+ ImageContext->SectionAlignment = Hdr.Pe32->OptionalHeader.SectionAlignment;
+ ImageContext->SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;
+
+ } else {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_MACHINE_TYPE;
+ return EFI_UNSUPPORTED;
+ }
+ } else {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_MACHINE_TYPE;
+ return EFI_UNSUPPORTED;
+ }
+
+ if (!PeCoffLoaderImageFormatSupported (ImageContext->Machine)) {
+ //
+ // If the PE/COFF loader does not support the image type return
+ // unsupported. This library can suport lots of types of images
+ // this does not mean the user of this library can call the entry
+ // point of the image.
+ //
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+PeCoffLoaderCheckImageType (
+ IN OUT EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ )
+/*++
+
+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
+
+Returns:
+
+ EFI_SUCCESS if the PE/COFF or TE image is supported
+ EFI_UNSUPPORTED of the PE/COFF or TE image is not supported.
+
+--*/
+{
+ switch (ImageContext->ImageType) {
+
+ case EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION:
+ ImageContext->ImageCodeMemoryType = EfiLoaderCode;
+ ImageContext->ImageDataMemoryType = EfiLoaderData;
+ break;
+
+ case EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
+ ImageContext->ImageCodeMemoryType = EfiBootServicesCode;
+ ImageContext->ImageDataMemoryType = EfiBootServicesData;
+ break;
+
+ case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
+ case EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
+ ImageContext->ImageCodeMemoryType = EfiRuntimeServicesCode;
+ ImageContext->ImageDataMemoryType = EfiRuntimeServicesData;
+ break;
+
+ default:
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_SUBSYSTEM;
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderGetImageInfo (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_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:
+
+ EFI_SUCCESS if the information on the PE/COFF image was collected.
+ EFI_UNSUPPORTED of the PE/COFF image is not supported.
+ Otherwise, the error status from reading the PE/COFF image using the
+ ImageContext->ImageRead() function
+
+ EFI_INVALID_PARAMETER - ImageContext is NULL.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+ 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;
+ UINT32 NumberOfRvaAndSizes;
+ UINT16 Magic;
+
+ if (NULL == ImageContext) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Assume success
+ //
+ ImageContext->ImageError = EFI_IMAGE_ERROR_SUCCESS;
+
+ Hdr.Union = &HdrData;
+ Status = PeCoffLoaderGetPeHeader (ImageContext, Hdr);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Verify machine type
+ //
+ Status = PeCoffLoaderCheckImageType (ImageContext);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+
+ //
+ // Retrieve the base address of the image
+ //
+ if (!(ImageContext->IsTeImage)) {
+
+ //
+ // NOTE: We use Machine to identify PE32/PE32+, instead of Magic.
+ // It is for backward-compatibility consideration, because
+ // some system will generate PE32+ image with PE32 Magic.
+ //
+ if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA32) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_X64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else {
+ Magic = Hdr.Pe32->OptionalHeader.Magic;
+ }
+
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+ //
+ // Use PE32 offset
+ //
+ ImageContext->ImageAddress = Hdr.Pe32->OptionalHeader.ImageBase;
+ } else {
+ //
+ // Use PE32+ offset
+ //
+ ImageContext->ImageAddress = Hdr.Pe32Plus->OptionalHeader.ImageBase;
+ }
+ } else {
+ ImageContext->ImageAddress = (EFI_PHYSICAL_ADDRESS)(Hdr.Te->ImageBase);
+ }
+
+ //
+ // 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)) && ((Hdr.Pe32->FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0)) {
+ ImageContext->RelocationsStripped = TRUE;
+ } else {
+ ImageContext->RelocationsStripped = FALSE;
+ }
+
+ if (!(ImageContext->IsTeImage)) {
+ //
+ // Use PE32 to access fields that have same offset in PE32 and PE32+
+ //
+ ImageContext->ImageSize = (UINT64) Hdr.Pe32->OptionalHeader.SizeOfImage;
+ ImageContext->SectionAlignment = Hdr.Pe32->OptionalHeader.SectionAlignment;
+ ImageContext->SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+ //
+ // Use PE32 offset
+ //
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
+ DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
+ } else {
+ //
+ // Use PE32+ offset
+ //
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
+ DebugDirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
+ }
+
+ if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {
+
+ DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;
+
+ //
+ // 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) +
+ Hdr.Pe32->FileHeader.SizeOfOptionalHeader
+ );
+
+ for (Index = 0; Index < Hdr.Pe32->FileHeader.NumberOfSections; Index++) {
+ //
+ // Read section header from file
+ //
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ SectionHeaderOffset,
+ &Size,
+ &SectionHeader
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_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++) {
+ //
+ // Read next debug directory entry
+ //
+ Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ DebugDirectoryEntryFileOffset,
+ &Size,
+ &DebugEntry
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return Status;
+ }
+
+ if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
+ ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));
+ if (DebugEntry.RVA == 0 && DebugEntry.FileOffset != 0) {
+ ImageContext->ImageSize += DebugEntry.SizeOfData;
+ }
+
+ return EFI_SUCCESS;
+ }
+ }
+ }
+ }
+ } else {
+ //
+ // Because Te image only extracts base relocations and debug directory entries from
+ // Pe image and in Te image header there is not a field to describe the imagesize,
+ // we use the largest VirtualAddress plus Size in each directory entry to describe the imagesize
+ //
+ ImageContext->ImageSize = (UINT64) (Hdr.Te->DataDirectory[0].VirtualAddress + Hdr.Te->DataDirectory[0].Size);
+ ImageContext->SectionAlignment = 4096;
+ ImageContext->SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN) Hdr.Te->BaseOfCode - (UINTN) Hdr.Te->StrippedSize;
+
+ DebugDirectoryEntry = &Hdr.Te->DataDirectory[1];
+ DebugDirectoryEntryRva = DebugDirectoryEntry->VirtualAddress;
+ SectionHeaderOffset = (UINTN)(sizeof (EFI_TE_IMAGE_HEADER));
+
+ DebugDirectoryEntryFileOffset = 0;
+
+ for (Index = 0; Index < Hdr.Te->NumberOfSections; Index++) {
+ //
+ // Read section header from file
+ //
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ SectionHeaderOffset,
+ &Size,
+ &SectionHeader
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_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) -
+ Hdr.Te->StrippedSize;
+ break;
+ }
+
+ SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);
+ }
+
+ if (DebugDirectoryEntryFileOffset != 0) {
+ for (Index = 0; Index < DebugDirectoryEntry->Size; Index++) {
+ //
+ // Read next debug directory entry
+ //
+ Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ DebugDirectoryEntryFileOffset,
+ &Size,
+ &DebugEntry
+ );
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return Status;
+ }
+
+ if (DebugEntry.Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
+ ImageContext->DebugDirectoryEntryRva = (UINT32) (DebugDirectoryEntryRva + Index * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));
+ return EFI_SUCCESS;
+ }
+ }
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+STATIC
+VOID *
+PeCoffLoaderImageAddress (
+ IN OUT EFI_PEI_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 = EFI_IMAGE_ERROR_INVALID_IMAGE_ADDRESS;
+ return NULL;
+ }
+
+ return (CHAR8 *) ((UINTN) ImageContext->ImageAddress + Address);
+}
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderRelocateImage (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_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:
+
+ EFI_SUCCESS if the PE/COFF image was relocated
+ EFI_LOAD_ERROR if the image is not a valid PE/COFF image
+ EFI_UNSUPPORTED not support
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+ 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;
+ EFI_PHYSICAL_ADDRESS BaseAddress;
+ UINT32 NumberOfRvaAndSizes;
+ UINT16 Magic;
+#ifdef EFI_NT_EMULATOR
+ VOID *DllEntryPoint;
+ VOID *ModHandle;
+
+ ModHandle = NULL;
+#endif
+
+ if (NULL == ImageContext) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Assume success
+ //
+ ImageContext->ImageError = EFI_IMAGE_ERROR_SUCCESS;
+
+ //
+ // If there are no relocation entries, then we are done
+ //
+ if (ImageContext->RelocationsStripped) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // If the destination address is not 0, use that rather than the
+ // image address as the relocation target.
+ //
+ if (ImageContext->DestinationAddress != 0) {
+ BaseAddress = ImageContext->DestinationAddress;
+ } else {
+ BaseAddress = ImageContext->ImageAddress;
+ }
+
+ if (!(ImageContext->IsTeImage)) {
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);
+
+ //
+ // NOTE: We use Machine to identify PE32/PE32+, instead of Magic.
+ // It is for backward-compatibility consideration, because
+ // some system will generate PE32+ image with PE32 Magic.
+ //
+ if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA32) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_X64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else {
+ Magic = Hdr.Pe32->OptionalHeader.Magic;
+ }
+
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+ //
+ // Use PE32 offset
+ //
+ Adjust = (UINT64)BaseAddress - Hdr.Pe32->OptionalHeader.ImageBase;
+ Hdr.Pe32->OptionalHeader.ImageBase = (UINT32)BaseAddress;
+
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
+ RelocDir = &Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
+ } else {
+ //
+ // Use PE32+ offset
+ //
+ Adjust = (UINT64) BaseAddress - Hdr.Pe32Plus->OptionalHeader.ImageBase;
+ Hdr.Pe32Plus->OptionalHeader.ImageBase = (UINT64)BaseAddress;
+
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
+ RelocDir = &Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
+ }
+
+ //
+ // 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 (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
+ RelocBase = PeCoffLoaderImageAddress (ImageContext, RelocDir->VirtualAddress);
+ RelocBaseEnd = PeCoffLoaderImageAddress (
+ ImageContext,
+ RelocDir->VirtualAddress + RelocDir->Size - 1
+ );
+ } else {
+ //
+ // Set base and end to bypass processing below.
+ //
+ RelocBase = RelocBaseEnd = 0;
+ }
+ } else {
+ Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);
+ Adjust = (UINT64) (BaseAddress - Hdr.Te->ImageBase);
+ Hdr.Te->ImageBase = (UINT64) (BaseAddress);
+
+ //
+ // Find the relocation block
+ //
+ RelocDir = &Hdr.Te->DataDirectory[0];
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *)(UINTN)(
+ ImageContext->ImageAddress +
+ RelocDir->VirtualAddress +
+ sizeof(EFI_TE_IMAGE_HEADER) -
+ Hdr.Te->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);
+ } else {
+ FixupBase = (CHAR8 *)(UINTN)(ImageContext->ImageAddress +
+ RelocBase->VirtualAddress +
+ sizeof(EFI_TE_IMAGE_HEADER) -
+ Hdr.Te->StrippedSize
+ );
+ }
+
+ if ((CHAR8 *) RelocEnd < (CHAR8 *) ((UINTN) ImageContext->ImageAddress) ||
+ (CHAR8 *) RelocEnd > (CHAR8 *)((UINTN)ImageContext->ImageAddress +
+ (UINTN)ImageContext->ImageSize)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_FAILED_RELOCATION;
+ return EFI_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:
+ //
+ // For X64 and IPF
+ //
+ 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 = EFI_IMAGE_ERROR_FAILED_RELOCATION;
+ return EFI_UNSUPPORTED;
+
+ default:
+ //
+ // The common code does not handle some of the stranger IPF relocations
+ // PeCoffLoaderRelocateImageEx () addes support for these complex fixups
+ // on IPF and is a No-Op on other archtiectures.
+ //
+ Status = PeCoffLoaderRelocateImageEx (Reloc, Fixup, &FixupData, Adjust);
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_FAILED_RELOCATION;
+ return Status;
+ }
+ }
+
+ //
+ // Next relocation record
+ //
+ Reloc += 1;
+ }
+
+ //
+ // Next reloc block
+ //
+ RelocBase = (EFI_IMAGE_BASE_RELOCATION *) RelocEnd;
+ }
+
+#ifdef EFI_NT_EMULATOR
+ DllEntryPoint = NULL;
+ ImageContext->ModHandle = NULL;
+ //
+ // Load the DLL if it's not an EBC image.
+ //
+ if ((ImageContext->PdbPointer != NULL) &&
+ (ImageContext->Machine != EFI_IMAGE_MACHINE_EBC)) {
+ Status = mPeCoffLoaderWinNtLoadAsDll->Entry (
+ ImageContext->PdbPointer,
+ &DllEntryPoint,
+ &ModHandle
+ );
+
+ if (!EFI_ERROR (Status) && DllEntryPoint != NULL) {
+ ImageContext->EntryPoint = (EFI_PHYSICAL_ADDRESS) (UINTN) DllEntryPoint;
+ ImageContext->ModHandle = ModHandle;
+ }
+ }
+#endif
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderLoadImage (
+ IN EFI_PEI_PE_COFF_LOADER_PROTOCOL *This,
+ IN OUT EFI_PEI_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:
+
+ EFI_SUCCESS if the PE/COFF image was loaded
+ EFI_BUFFER_TOO_SMALL if the caller did not provide a large enough buffer
+ EFI_LOAD_ERROR if the image is a runtime driver with no relocations
+ EFI_INVALID_PARAMETER if the image address is invalid
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
+ EFI_PEI_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;
+ UINT32 NumberOfRvaAndSizes;
+ UINT16 Magic;
+
+ if (NULL == ImageContext) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Assume success
+ //
+ ImageContext->ImageError = EFI_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 (EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT));
+
+ Status = PeCoffLoaderGetImageInfo (This, &CheckContext);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Make sure there is enough allocated space for the image being loaded
+ //
+ if (ImageContext->ImageSize < CheckContext.ImageSize) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_IMAGE_SIZE;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+ if (ImageContext->ImageAddress == 0) {
+ //
+ // Image cannot be loaded into 0 address.
+ //
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_IMAGE_ADDRESS;
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // 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 = EFI_IMAGE_ERROR_INVALID_SUBSYSTEM;
+ return EFI_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 = EFI_IMAGE_ERROR_INVALID_IMAGE_ADDRESS;
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ //
+ // Make sure the allocated space has the proper section alignment
+ //
+ if (!(ImageContext->IsTeImage)) {
+ if ((ImageContext->ImageAddress & (CheckContext.SectionAlignment - 1)) != 0) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_INVALID_SECTION_ALIGNMENT;
+ return EFI_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
+ );
+
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN)ImageContext->ImageAddress + ImageContext->PeCoffHeaderOffset);
+
+ FirstSection = (EFI_IMAGE_SECTION_HEADER *) (
+ (UINTN)ImageContext->ImageAddress +
+ ImageContext->PeCoffHeaderOffset +
+ sizeof(UINT32) +
+ sizeof(EFI_IMAGE_FILE_HEADER) +
+ Hdr.Pe32->FileHeader.SizeOfOptionalHeader
+ );
+ NumberOfSections = (UINTN) (Hdr.Pe32->FileHeader.NumberOfSections);
+ } else {
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ 0,
+ &ImageContext->SizeOfHeaders,
+ (VOID *)(UINTN)ImageContext->ImageAddress
+ );
+
+ Hdr.Te = (EFI_TE_IMAGE_HEADER *)(UINTN)(ImageContext->ImageAddress);
+
+ FirstSection = (EFI_IMAGE_SECTION_HEADER *) (
+ (UINTN)ImageContext->ImageAddress +
+ sizeof(EFI_TE_IMAGE_HEADER)
+ );
+ NumberOfSections = (UINTN) (Hdr.Te->NumberOfSections);
+
+ }
+
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return EFI_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 (ImageContext->IsTeImage) {
+ Base = (CHAR8 *)((UINTN) Base + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN)Hdr.Te->StrippedSize);
+ End = (CHAR8 *)((UINTN) End + sizeof (EFI_TE_IMAGE_HEADER) - (UINTN)Hdr.Te->StrippedSize);
+ }
+
+ if (End > MaxEnd) {
+ MaxEnd = End;
+ }
+ //
+ // If the base start or end address resolved to 0, then fail.
+ //
+ if ((Base == NULL) || (End == NULL)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_SECTION_NOT_LOADED;
+ return EFI_LOAD_ERROR;
+ }
+
+ //
+ // 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)Hdr.Te->StrippedSize,
+ &Size,
+ Base
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_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;
+ }
+
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+
+ //
+ // Get image's entry point
+ //
+ if (!(ImageContext->IsTeImage)) {
+
+ //
+ // NOTE: We use Machine to identify PE32/PE32+, instead of Magic.
+ // It is for backward-compatibility consideration, because
+ // some system will generate PE32+ image with PE32 Magic.
+ //
+ if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA32) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_IA64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else if (Hdr.Pe32->FileHeader.Machine == EFI_IMAGE_MACHINE_X64) {
+ Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+ } else {
+ Magic = Hdr.Pe32->OptionalHeader.Magic;
+ }
+
+ //
+ // Sizes of AddressOfEntryPoint are different so we need to do this safely
+ //
+ ImageContext->EntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)PeCoffLoaderImageAddress (
+ ImageContext,
+ (UINTN)Hdr.Pe32->OptionalHeader.AddressOfEntryPoint
+ );
+
+ } else {
+ ImageContext->EntryPoint = (EFI_PHYSICAL_ADDRESS) (
+ (UINTN)ImageContext->ImageAddress +
+ (UINTN)Hdr.Te->AddressOfEntryPoint +
+ (UINTN)sizeof(EFI_TE_IMAGE_HEADER) -
+ (UINTN)Hdr.Te->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 (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+ //
+ // Use PE32 offset
+ //
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
+ } else {
+ //
+ // Use PE32+ offset
+ //
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
+ DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
+ }
+
+ if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
+ ImageContext->FixupDataSize = DirectoryEntry->Size / sizeof (UINT16) * sizeof (UINTN);
+ } else {
+ ImageContext->FixupDataSize = 0;
+ }
+ } else {
+ DirectoryEntry = &Hdr.Te->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) -
+ Hdr.Te->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) Hdr.Te->StrippedSize
+ );
+ }
+
+ if (ImageContext->CodeView == NULL) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return EFI_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) - Hdr.Te->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 (EFI_ERROR (Status)) {
+ ImageContext->ImageError = EFI_IMAGE_ERROR_IMAGE_READ;
+ return EFI_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;
+
+ default:
+ break;
+ }
+ }
+ }
+ }
+
+#if defined (EFI_DEBUG_ITP_BREAK) && !defined (_CONSOLE)
+ AsmEfiSetBreakSupport ((UINTN)(ImageContext->ImageAddress));
+#endif
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+PeCoffLoaderUnloadImage (
+ IN EFI_PEI_PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ )
+/*++
+
+Routine Description:
+
+ Unload a PE/COFF image from memory
+
+Arguments:
+
+ ImageContext - Contains information on image to load into memory
+
+Returns:
+
+ EFI_SUCCESS
+
+--*/
+{
+#ifdef EFI_NT_EMULATOR
+ //
+ // Calling Win32 API free library
+ //
+ mPeCoffLoaderWinNtLoadAsDll->FreeLibrary (ImageContext->ModHandle);
+
+#endif
+
+ return EFI_SUCCESS;
+}
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