MdePkg/BasePeCoff: Add RISC-V PE/Coff related code.

[mirror_edk2.git] / MdePkg / Library / BasePeCoffLib / BasePeCoffLibInternals.h

/** @file\r
  Declaration of internal functions in PE/COFF Lib.\r
\r
  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
  Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __BASE_PECOFF_LIB_INTERNALS__\r
#define __BASE_PECOFF_LIB_INTERNALS__\r
\r
#include <Base.h>\r
#include <Library/PeCoffLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/PeCoffExtraActionLib.h>\r
#include <IndustryStandard/PeImage.h>\r
\r
//\r
// Macro definitions for RISC-V architecture.\r
//\r
#define RV_X(x, s, n) (((x) >> (s)) & ((1<<(n))-1))\r
#define RISCV_IMM_BITS 12\r
#define RISCV_IMM_REACH (1LL<<RISCV_IMM_BITS)\r
#define RISCV_CONST_HIGH_PART(VALUE) \\r
  (((VALUE) + (RISCV_IMM_REACH/2)) & ~(RISCV_IMM_REACH-1))\r
\r
\r
/**\r
  Performs an Itanium-based specific relocation fixup and is a no-op on other\r
  instruction sets.\r
\r
  @param  Reloc       The pointer to the relocation record.\r
  @param  Fixup       The pointer to the address to fix up.\r
  @param  FixupData   The pointer to a buffer to log the fixups.\r
  @param  Adjust      The offset to adjust the fixup.\r
\r
  @return Status code.\r
\r
**/\r
RETURN_STATUS\r
PeCoffLoaderRelocateImageEx (\r
  IN UINT16      *Reloc,\r
  IN OUT CHAR8   *Fixup,\r
  IN OUT CHAR8   **FixupData,\r
  IN UINT64      Adjust\r
  );\r
\r
\r
/**\r
  Performs an Itanium-based specific re-relocation fixup and is a no-op on other\r
  instruction sets. This is used to re-relocated the image into the EFI virtual\r
  space for runtime calls.\r
\r
  @param  Reloc       The pointer to the relocation record.\r
  @param  Fixup       The pointer to the address to fix up.\r
  @param  FixupData   The pointer to a buffer to log the fixups.\r
  @param  Adjust      The offset to adjust the fixup.\r
\r
  @return Status code.\r
\r
**/\r
RETURN_STATUS\r
PeHotRelocateImageEx (\r
  IN UINT16      *Reloc,\r
  IN OUT CHAR8   *Fixup,\r
  IN OUT CHAR8   **FixupData,\r
  IN UINT64      Adjust\r
  );\r
\r
\r
/**\r
  Returns TRUE if the machine type of PE/COFF image is supported. Supported\r
  does not mean the image can be executed it means the PE/COFF loader supports\r
  loading and relocating of the image type. It's up to the caller to support\r
  the entry point.\r
\r
  @param  Machine   Machine type from the PE Header.\r
\r
  @return TRUE if this PE/COFF loader can load the image\r
\r
**/\r
BOOLEAN\r
PeCoffLoaderImageFormatSupported (\r
  IN  UINT16  Machine\r
  );\r
\r
/**\r
  Retrieves the magic value from the PE/COFF header.\r
\r
  @param  Hdr             The buffer in which to return the PE32, PE32+, or TE header.\r
\r
  @return EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC - Image is PE32\r
  @return EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC - Image is PE32+\r
\r
**/\r
UINT16\r
PeCoffLoaderGetPeHeaderMagicValue (\r
  IN  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr\r
  );\r
\r
/**\r
  Retrieves the PE or TE Header from a PE/COFF or TE image.\r
\r
  @param  ImageContext    The context of the image being loaded.\r
  @param  Hdr             The buffer in which to return the PE32, PE32+, or TE header.\r
\r
  @retval RETURN_SUCCESS  The PE or TE Header is read.\r
  @retval Other           The error status from reading the PE/COFF or TE image using the ImageRead function.\r
\r
**/\r
RETURN_STATUS\r
PeCoffLoaderGetPeHeader (\r
  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT         *ImageContext,\r
  OUT    EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr\r
  );\r
\r
/**\r
  Converts an image address to the loaded address.\r
\r
  @param  ImageContext      The context of the image being loaded.\r
  @param  Address           The address to be converted to the loaded address.\r
  @param  TeStrippedOffset  Stripped offset for TE image.\r
\r
  @return The converted address or NULL if the address can not be converted.\r
\r
**/\r
VOID *\r
PeCoffLoaderImageAddress (\r
  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT          *ImageContext,\r
  IN     UINTN                                 Address,\r
  IN     UINTN                                 TeStrippedOffset\r
  );\r
\r
#endif\r