[mirror_edk2.git] / MdePkg / Include / Library / PeCoffLib.h

/** @file\r
  Memory Only PE COFF loader. \r
\r
  Copyright (c) 2006 - 2007, 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
**/\r
\r
#ifndef __BASE_PE_COFF_LIB_H__\r
#define __BASE_PE_COFF_LIB_H__\r
\r
#include <IndustryStandard/PeImage.h>\r
//\r
// Return status codes from the PE/COFF Loader services\r
//\r
#define IMAGE_ERROR_SUCCESS                      0\r
#define IMAGE_ERROR_IMAGE_READ                   1  \r
#define IMAGE_ERROR_INVALID_PE_HEADER_SIGNATURE  2\r
#define IMAGE_ERROR_INVALID_MACHINE_TYPE         3\r
#define IMAGE_ERROR_INVALID_SUBSYSTEM            4\r
#define IMAGE_ERROR_INVALID_IMAGE_ADDRESS        5\r
#define IMAGE_ERROR_INVALID_IMAGE_SIZE           6\r
#define IMAGE_ERROR_INVALID_SECTION_ALIGNMENT    7\r
#define IMAGE_ERROR_SECTION_NOT_LOADED           8\r
#define IMAGE_ERROR_FAILED_RELOCATION            9\r
#define IMAGE_ERROR_FAILED_ICACHE_FLUSH          10\r
\r
//\r
// PE/COFF Loader Read Function passed in by caller\r
//\r
typedef\r
RETURN_STATUS\r
(EFIAPI *PE_COFF_LOADER_READ_FILE) (\r
  IN     VOID   *FileHandle,\r
  IN     UINTN  FileOffset,\r
  IN OUT UINTN  *ReadSize,\r
  OUT    VOID   *Buffer\r
  );\r
\r
///\r
/// Context structure used while PE/COFF image is being loaded and relocated\r
///\r
typedef struct {\r
  ///\r
  /// Is set by PeCoffLoaderGetImageInfo() to the ImageBase in the PE/COFF header\r
  ///\r
  PHYSICAL_ADDRESS                  ImageAddress;\r
  ///\r
  /// Is set by PeCoffLoaderGetImageInfo() to the SizeOfImage in the PE/COFF header.\r
  /// Image size includes the size of Debug Entry if it is present.\r
  ///\r
  UINT64                            ImageSize;\r
  ///\r
  /// Is set to zero by PeCoffLoaderGetImageInfo(). If DestinationAddress is non zero,\r
  /// PeCoffLoaderRelocateImage() will relocate the image using this base address.\r
  /// If the DestinationAddress is zero, the ImageAddress will be used as the base\r
  /// address of relocation.\r
  ///\r
  PHYSICAL_ADDRESS                  DestinationAddress;\r
  ///\r
  /// PeCoffLoaderLoadImage() sets EntryPoint to to the entry point of the PE/COFF image.\r
  ///\r
  PHYSICAL_ADDRESS                  EntryPoint;\r
  ///\r
  /// Passed in by the caller to PeCoffLoaderGetImageInfo() and PeCoffLoaderLoadImage()\r
  /// to abstract accessing the image from the library.\r
  ///\r
  PE_COFF_LOADER_READ_FILE          ImageRead;\r
  ///\r
  /// Used as the FileHandle passed into the ImageRead function when it's called.\r
  ///\r
  VOID                              *Handle;\r
  ///\r
  /// Caller allocated buffer of size FixupDataSize that can be optionally allocated\r
  /// prior to calling PeCoffLoaderRelocateImage(). \r
  /// This buffer is filled with the information used to fix up the image. \r
  /// The fixups have been applied to the image and this entry is just for information.\r
  ///\r
  VOID                              *FixupData;\r
  ///\r
  /// Is set by PeCoffLoaderGetImageInfo() to the Section Alignment in the PE/COFF header\r
  /// If the image is a TE image, then this field is set to 0.\r
  ///\r
  UINT32                            SectionAlignment;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to offset to the PE/COFF header.\r
  /// If the PE/COFF image does not start with a DOS header, this value is zero; \r
  /// otherwise, it's the offset to the PE/COFF header.\r
  ///\r
  UINT32                            PeCoffHeaderOffset;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to the Relative Virtual Address of the debug directory\r
  /// if it exists in the image\r
  ///\r
  UINT32                            DebugDirectoryEntryRva;\r
  ///\r
  /// Set by PeCoffLoaderLoadImage() to CodeView area of the PE/COFF Debug directory.\r
  ///\r
  VOID                              *CodeView;\r
  ///\r
  /// Set by PeCoffLoaderLoadImage() to point to the PDB entry contained in the CodeView area.\r
  /// The PdbPointer points to the filename of the PDB file used for source-level debug of \r
  /// the image by a debugger.\r
  ///\r
  CHAR8                             *PdbPointer;\r
  ///\r
  /// Is set by PeCoffLoaderGetImageInfo() to the Section Alignment in the PE/COFF header.\r
  ///\r
  UINTN                             SizeOfHeaders;\r
  ///\r
  /// Not used by this library class. Other library classes that layer on  top of this library\r
  /// class fill in this value as part of their GetImageInfo call. \r
  /// This allows the caller of the library to know what type of memory needs to be allocated\r
  /// to load and relocate the image.\r
  ///\r
  UINT32                            ImageCodeMemoryType;\r
  ///\r
  /// Not used by this library class. Other library classes that layer on top of this library \r
  /// class fill in this value as part of their GetImageInfo call.\r
  /// This allows the caller of the library to know what type of memory needs to be allocated\r
  /// to load and relocate the image\r
  ///\r
  UINT32                            ImageDataMemoryType;\r
  ///\r
  /// Set by any of the library functions if they encounter an error. \r
  ///\r
  UINT32                            ImageError;\r
  ///\r
  /// Set by PeCoffLoaderLoadImage() to indicate the size of FixupData that the caller must\r
  /// allocate before calling PeCoffLoaderRelocateImage()\r
  ///\r
  UINTN                             FixupDataSize;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to the machine type stored in the PE/COFF header\r
  ///\r
  UINT16                            Machine;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to the subsystem type stored in the PE/COFF header.\r
  ///\r
  UINT16                            ImageType;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to TRUE if the PE/COFF image does not contain\r
  /// relocation information.\r
  ///\r
  BOOLEAN                           RelocationsStripped;\r
  ///\r
  /// Set by PeCoffLoaderGetImageInfo() to TRUE if the image is a TE image. \r
  /// For a definition of the TE Image format, see the Platform Initialization Pre-EFI\r
  /// Initialization Core Interface Specification.\r
  ///\r
  BOOLEAN                           IsTeImage;\r
} PE_COFF_LOADER_IMAGE_CONTEXT;\r
\r
/**\r
  Retrieves information about a PE/COFF image.\r
\r
  Computes the PeCoffHeaderOffset, IsTeImage, ImageType, ImageAddress, ImageSize, \r
  DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and \r
  DebugDirectoryEntryRva fields of the ImageContext structure.  \r
  If ImageContext is NULL, then return RETURN_INVALID_PARAMETER.  \r
  If the PE/COFF image accessed through the ImageRead service in the ImageContext \r
  structure is not a supported PE/COFF image type, then return RETURN_UNSUPPORTED.  \r
  If any errors occur while computing the fields of ImageContext, \r
  then the error status is returned in the ImageError field of ImageContext.  \r
  If the image is a TE image, then SectionAlignment is set to 0.\r
\r
  @param  ImageContext              Pointer to the image context structure that describes the PE/COFF\r
                                    image that needs to be examined by this function.\r
\r
  @retval RETURN_SUCCESS            The information on the PE/COFF image was collected.\r
  @retval RETURN_INVALID_PARAMETER  ImageContext is NULL.\r
  @retval RETURN_UNSUPPORTED        The PE/COFF image is not supported.\r
\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderGetImageInfo (\r
  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext\r
  );\r
\r
/**\r
  Applies relocation fixups to a PE/COFF image that was loaded with PeCoffLoaderLoadImage().\r
\r
  If the DestinationAddress field of ImageContext is 0, then use the ImageAddress field of\r
  ImageContext as the relocation base address.  Otherwise, use the DestinationAddress field\r
  of ImageContext as the relocation base address.  The caller must allocate the relocation\r
  fixup log buffer and fill in the FixupData field of ImageContext prior to calling this function.  \r
  If ImageContext is NULL, then ASSERT().\r
\r
  @param  ImageContext        Pointer to the image context structure that describes the PE/COFF\r
                              image that is being relocated.\r
\r
  @retval RETURN_SUCCESS      The PE/COFF image was relocated.\r
                              Extended status information is in the ImageError field of ImageContext.\r
  @retval RETURN_LOAD_ERROR   The image in not a valid PE/COFF image.\r
                              Extended status information is in the ImageError field of ImageContext.\r
  @retval RETURN_UNSUPPORTED  A relocation record type is not supported.\r
                              Extended status information is in the ImageError field of ImageContext.\r
\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderRelocateImage (\r
  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext\r
  );\r
\r
/**\r
  Loads a PE/COFF image into memory.\r
\r
  Loads the PE/COFF image accessed through the ImageRead service of ImageContext into the buffer\r
  specified by the ImageAddress and ImageSize fields of ImageContext.  The caller must allocate\r
  the load buffer and fill in the ImageAddress and ImageSize fields prior to calling this function.\r
  The EntryPoint, FixupDataSize, CodeView, and PdbPointer fields of ImageContext are computed.\r
  If ImageContext is NULL, then ASSERT().\r
\r
  @param  ImageContext              Pointer to the image context structure that describes the PE/COFF\r
                                    image that is being loaded.\r
\r
  @retval RETURN_SUCCESS            The PE/COFF image was loaded into the buffer specified by\r
                                    the ImageAddress and ImageSize fields of ImageContext.\r
                                    Extended status information is in the ImageError field of ImageContext.\r
  @retval RETURN_BUFFER_TOO_SMALL   The caller did not provide a large enough buffer.\r
                                    Extended status information is in the ImageError field of ImageContext.\r
  @retval RETURN_LOAD_ERROR         The PE/COFF image is an EFI Runtime image with no relocations.\r
                                    Extended status information is in the ImageError field of ImageContext.\r
  @retval RETURN_INVALID_PARAMETER  The image address is invalid.\r
                                    Extended status information is in the ImageError field of ImageContext.\r
\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderLoadImage (\r
  IN OUT PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext\r
  );\r
\r
\r
/**\r
  ImageRead function that operates on a memory buffer whos base is passed into\r
  FileHandle. \r
\r
  @param  FileHandle        Ponter to baes of the input stream\r
  @param  FileOffset        Offset to the start of the buffer\r
  @param  ReadSize          Number of bytes to copy into the buffer\r
  @param  Buffer            Location to place results of read\r
\r
  @retval RETURN_SUCCESS    Data is read from FileOffset from the Handle into \r
                            the buffer.\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderImageReadFromMemory (\r
  IN     VOID    *FileHandle,\r
  IN     UINTN   FileOffset,\r
  IN OUT UINTN   *ReadSize,\r
  OUT    VOID    *Buffer\r
  );\r
\r
\r
/**\r
  Reapply fixups on a fixed up PE32/PE32+ image to allow virutal calling at EFI\r
  runtime. \r
  \r
  PE_COFF_LOADER_IMAGE_CONTEXT.FixupData stores information needed to reapply\r
  the fixups with a virtual mapping.\r
\r
\r
  @param  ImageBase          Base address of relocated image\r
  @param  VirtImageBase      Virtual mapping for ImageBase\r
  @param  ImageSize          Size of the image to relocate\r
  @param  RelocationData     Location to place results of read\r
  \r
**/\r
VOID\r
EFIAPI\r
PeCoffLoaderRelocateImageForRuntime (\r
  IN  PHYSICAL_ADDRESS        ImageBase,\r
  IN  PHYSICAL_ADDRESS        VirtImageBase,\r
  IN  UINTN                   ImageSize,\r
  IN  VOID                    *RelocationData\r
  );\r
\r
/**\r
  Unloads a loaded PE/COFF image from memory and releases its taken resource.\r
   \r
  For NT32 emulator, the PE/COFF image loaded by system needs to release.\r
  For real platform, the PE/COFF image loaded by Core doesn't needs to be unloaded, \r
  this function can simply return RETURN_SUCCESS.\r
\r
  @param  ImageContext              Pointer to the image context structure that describes the PE/COFF\r
                                    image to be unloaded.\r
\r
  @retval RETURN_SUCCESS            The PE/COFF image was unloaded successfully.\r
**/\r
RETURN_STATUS\r
EFIAPI\r
PeCoffLoaderUnloadImage (\r
  IN PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext\r
  );\r
#endif\r
Commit	Line	Data
fb3df220	1	/** @file\r
	2	Memory Only PE COFF loader. \r
	3	\r
	4	Copyright (c) 2006 - 2007, Intel Corporation \r
	5	All rights reserved. This program and the accompanying materials \r
	6	are licensed and made available under the terms and conditions of the BSD License \r
	7	which accompanies this distribution. The full text of the license may be found at \r
	8	http://opensource.org/licenses/bsd-license.php \r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	12	\r
fb3df220	13	**/\r
	14	\r
	15	#ifndef __BASE_PE_COFF_LIB_H__\r
	16	#define __BASE_PE_COFF_LIB_H__\r
	17	\r
d8dcb666	18	#include <IndustryStandard/PeImage.h>\r
fb3df220	19	//\r
fb3df220	20	// Return status codes from the PE/COFF Loader services\r
fb3df220	21	//\r
	22	#define IMAGE_ERROR_SUCCESS 0\r
	23	#define IMAGE_ERROR_IMAGE_READ 1 \r
	24	#define IMAGE_ERROR_INVALID_PE_HEADER_SIGNATURE 2\r
	25	#define IMAGE_ERROR_INVALID_MACHINE_TYPE 3\r
	26	#define IMAGE_ERROR_INVALID_SUBSYSTEM 4\r
	27	#define IMAGE_ERROR_INVALID_IMAGE_ADDRESS 5\r
	28	#define IMAGE_ERROR_INVALID_IMAGE_SIZE 6\r
	29	#define IMAGE_ERROR_INVALID_SECTION_ALIGNMENT 7\r
	30	#define IMAGE_ERROR_SECTION_NOT_LOADED 8\r
	31	#define IMAGE_ERROR_FAILED_RELOCATION 9\r
	32	#define IMAGE_ERROR_FAILED_ICACHE_FLUSH 10\r
	33	\r
146332ae	34	//\r
	35	// PE/COFF Loader Read Function passed in by caller\r
	36	//\r
	37	typedef\r
	38	RETURN_STATUS\r
	39	(EFIAPI *PE_COFF_LOADER_READ_FILE) (\r
	40	IN VOID *FileHandle,\r
	41	IN UINTN FileOffset,\r
	42	IN OUT UINTN *ReadSize,\r
	43	OUT VOID *Buffer\r
	44	);\r
	45	\r
f6d7003d	46	///\r
	47	/// Context structure used while PE/COFF image is being loaded and relocated\r
	48	///\r
146332ae	49	typedef struct {\r
f6d7003d	50	///\r
	51	/// Is set by PeCoffLoaderGetImageInfo() to the ImageBase in the PE/COFF header\r
	52	///\r
146332ae	53	PHYSICAL_ADDRESS ImageAddress;\r
f6d7003d	54	///\r
	55	/// Is set by PeCoffLoaderGetImageInfo() to the SizeOfImage in the PE/COFF header.\r
	56	/// Image size includes the size of Debug Entry if it is present.\r
	57	///\r
146332ae	58	UINT64 ImageSize;\r
f6d7003d	59	///\r
	60	/// Is set to zero by PeCoffLoaderGetImageInfo(). If DestinationAddress is non zero,\r
	61	/// PeCoffLoaderRelocateImage() will relocate the image using this base address.\r
	62	/// If the DestinationAddress is zero, the ImageAddress will be used as the base\r
	63	/// address of relocation.\r
	64	///\r
146332ae	65	PHYSICAL_ADDRESS DestinationAddress;\r
f6d7003d	66	///\r
	67	/// PeCoffLoaderLoadImage() sets EntryPoint to to the entry point of the PE/COFF image.\r
	68	///\r
146332ae	69	PHYSICAL_ADDRESS EntryPoint;\r
f6d7003d	70	///\r
	71	/// Passed in by the caller to PeCoffLoaderGetImageInfo() and PeCoffLoaderLoadImage()\r
	72	/// to abstract accessing the image from the library.\r
	73	///\r
146332ae	74	PE_COFF_LOADER_READ_FILE ImageRead;\r
f6d7003d	75	///\r
	76	/// Used as the FileHandle passed into the ImageRead function when it's called.\r
	77	///\r
146332ae	78	VOID *Handle;\r
f6d7003d	79	///\r
	80	/// Caller allocated buffer of size FixupDataSize that can be optionally allocated\r
	81	/// prior to calling PeCoffLoaderRelocateImage(). \r
	82	/// This buffer is filled with the information used to fix up the image. \r
	83	/// The fixups have been applied to the image and this entry is just for information.\r
	84	///\r
146332ae	85	VOID *FixupData;\r
f6d7003d	86	///\r
f6d7003d	87	/// Is set by PeCoffLoaderGetImageInfo() to the Section Alignment in the PE/COFF header\r
3ecdcd11	88	/// If the image is a TE image, then this field is set to 0.\r
f6d7003d	89	///\r
146332ae	90	UINT32 SectionAlignment;\r
f6d7003d	91	///\r
	92	/// Set by PeCoffLoaderGetImageInfo() to offset to the PE/COFF header.\r
	93	/// If the PE/COFF image does not start with a DOS header, this value is zero; \r
	94	/// otherwise, it's the offset to the PE/COFF header.\r
	95	///\r
146332ae	96	UINT32 PeCoffHeaderOffset;\r
f6d7003d	97	///\r
	98	/// Set by PeCoffLoaderGetImageInfo() to the Relative Virtual Address of the debug directory\r
	99	/// if it exists in the image\r
	100	///\r
146332ae	101	UINT32 DebugDirectoryEntryRva;\r
f6d7003d	102	///\r
	103	/// Set by PeCoffLoaderLoadImage() to CodeView area of the PE/COFF Debug directory.\r
	104	///\r
146332ae	105	VOID *CodeView;\r
f6d7003d	106	///\r
	107	/// Set by PeCoffLoaderLoadImage() to point to the PDB entry contained in the CodeView area.\r
	108	/// The PdbPointer points to the filename of the PDB file used for source-level debug of \r
	109	/// the image by a debugger.\r
	110	///\r
146332ae	111	CHAR8 *PdbPointer;\r
f6d7003d	112	///\r
	113	/// Is set by PeCoffLoaderGetImageInfo() to the Section Alignment in the PE/COFF header.\r
	114	///\r
146332ae	115	UINTN SizeOfHeaders;\r
f6d7003d	116	///\r
	117	/// Not used by this library class. Other library classes that layer on top of this library\r
	118	/// class fill in this value as part of their GetImageInfo call. \r
	119	/// This allows the caller of the library to know what type of memory needs to be allocated\r
	120	/// to load and relocate the image.\r
	121	///\r
146332ae	122	UINT32 ImageCodeMemoryType;\r
f6d7003d	123	///\r
	124	/// Not used by this library class. Other library classes that layer on top of this library \r
	125	/// class fill in this value as part of their GetImageInfo call.\r
	126	/// This allows the caller of the library to know what type of memory needs to be allocated\r
	127	/// to load and relocate the image\r
	128	///\r
146332ae	129	UINT32 ImageDataMemoryType;\r
f6d7003d	130	///\r
	131	/// Set by any of the library functions if they encounter an error. \r
	132	///\r
146332ae	133	UINT32 ImageError;\r
f6d7003d	134	///\r
	135	/// Set by PeCoffLoaderLoadImage() to indicate the size of FixupData that the caller must\r
	136	/// allocate before calling PeCoffLoaderRelocateImage()\r
	137	///\r
146332ae	138	UINTN FixupDataSize;\r
f6d7003d	139	///\r
	140	/// Set by PeCoffLoaderGetImageInfo() to the machine type stored in the PE/COFF header\r
	141	///\r
146332ae	142	UINT16 Machine;\r
f6d7003d	143	///\r
	144	/// Set by PeCoffLoaderGetImageInfo() to the subsystem type stored in the PE/COFF header.\r
	145	///\r
146332ae	146	UINT16 ImageType;\r
f6d7003d	147	///\r
	148	/// Set by PeCoffLoaderGetImageInfo() to TRUE if the PE/COFF image does not contain\r
	149	/// relocation information.\r
	150	///\r
146332ae	151	BOOLEAN RelocationsStripped;\r
f6d7003d	152	///\r
	153	/// Set by PeCoffLoaderGetImageInfo() to TRUE if the image is a TE image. \r
	154	/// For a definition of the TE Image format, see the Platform Initialization Pre-EFI\r
	155	/// Initialization Core Interface Specification.\r
	156	///\r
146332ae	157	BOOLEAN IsTeImage;\r
146332ae	158	} PE_COFF_LOADER_IMAGE_CONTEXT;\r
fb3df220	159	\r
	160	/**\r
	161	Retrieves information about a PE/COFF image.\r
	162	\r
3ecdcd11 LG	163	Computes the PeCoffHeaderOffset, IsTeImage, ImageType, ImageAddress, ImageSize, \r
	164	DestinationAddress, RelocationsStripped, SectionAlignment, SizeOfHeaders, and \r
	165	DebugDirectoryEntryRva fields of the ImageContext structure. \r
	166	If ImageContext is NULL, then return RETURN_INVALID_PARAMETER. \r
	167	If the PE/COFF image accessed through the ImageRead service in the ImageContext \r
	168	structure is not a supported PE/COFF image type, then return RETURN_UNSUPPORTED. \r
	169	If any errors occur while computing the fields of ImageContext, \r
	170	then the error status is returned in the ImageError field of ImageContext. \r
	171	If the image is a TE image, then SectionAlignment is set to 0.\r
fb3df220	172	\r
	173	@param ImageContext Pointer to the image context structure that describes the PE/COFF\r
	174	image that needs to be examined by this function.\r
	175	\r
	176	@retval RETURN_SUCCESS The information on the PE/COFF image was collected.\r
	177	@retval RETURN_INVALID_PARAMETER ImageContext is NULL.\r
	178	@retval RETURN_UNSUPPORTED The PE/COFF image is not supported.\r
	179	\r
	180	**/\r
	181	RETURN_STATUS\r
	182	EFIAPI\r
	183	PeCoffLoaderGetImageInfo (\r
	184	IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
ed66e1bc	185	);\r
fb3df220	186	\r
	187	/**\r
	188	Applies relocation fixups to a PE/COFF image that was loaded with PeCoffLoaderLoadImage().\r
	189	\r
	190	If the DestinationAddress field of ImageContext is 0, then use the ImageAddress field of\r
	191	ImageContext as the relocation base address. Otherwise, use the DestinationAddress field\r
	192	of ImageContext as the relocation base address. The caller must allocate the relocation\r
	193	fixup log buffer and fill in the FixupData field of ImageContext prior to calling this function. \r
	194	If ImageContext is NULL, then ASSERT().\r
	195	\r
	196	@param ImageContext Pointer to the image context structure that describes the PE/COFF\r
	197	image that is being relocated.\r
	198	\r
	199	@retval RETURN_SUCCESS The PE/COFF image was relocated.\r
	200	Extended status information is in the ImageError field of ImageContext.\r
	201	@retval RETURN_LOAD_ERROR The image in not a valid PE/COFF image.\r
	202	Extended status information is in the ImageError field of ImageContext.\r
	203	@retval RETURN_UNSUPPORTED A relocation record type is not supported.\r
	204	Extended status information is in the ImageError field of ImageContext.\r
	205	\r
	206	**/\r
	207	RETURN_STATUS\r
	208	EFIAPI\r
	209	PeCoffLoaderRelocateImage (\r
	210	IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
ed66e1bc	211	);\r
fb3df220	212	\r
	213	/**\r
	214	Loads a PE/COFF image into memory.\r
	215	\r
	216	Loads the PE/COFF image accessed through the ImageRead service of ImageContext into the buffer\r
	217	specified by the ImageAddress and ImageSize fields of ImageContext. The caller must allocate\r
	218	the load buffer and fill in the ImageAddress and ImageSize fields prior to calling this function.\r
	219	The EntryPoint, FixupDataSize, CodeView, and PdbPointer fields of ImageContext are computed.\r
	220	If ImageContext is NULL, then ASSERT().\r
	221	\r
	222	@param ImageContext Pointer to the image context structure that describes the PE/COFF\r
	223	image that is being loaded.\r
	224	\r
	225	@retval RETURN_SUCCESS The PE/COFF image was loaded into the buffer specified by\r
	226	the ImageAddress and ImageSize fields of ImageContext.\r
	227	Extended status information is in the ImageError field of ImageContext.\r
	228	@retval RETURN_BUFFER_TOO_SMALL The caller did not provide a large enough buffer.\r
	229	Extended status information is in the ImageError field of ImageContext.\r
	230	@retval RETURN_LOAD_ERROR The PE/COFF image is an EFI Runtime image with no relocations.\r
	231	Extended status information is in the ImageError field of ImageContext.\r
	232	@retval RETURN_INVALID_PARAMETER The image address is invalid.\r
	233	Extended status information is in the ImageError field of ImageContext.\r
	234	\r
	235	**/\r
	236	RETURN_STATUS\r
	237	EFIAPI\r
	238	PeCoffLoaderLoadImage (\r
	239	IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
ed66e1bc	240	);\r
fb3df220	241	\r
	242	\r
	243	/**\r
	244	ImageRead function that operates on a memory buffer whos base is passed into\r
	245	FileHandle. \r
	246	\r
	247	@param FileHandle Ponter to baes of the input stream\r
	248	@param FileOffset Offset to the start of the buffer\r
	249	@param ReadSize Number of bytes to copy into the buffer\r
	250	@param Buffer Location to place results of read\r
	251	\r
	252	@retval RETURN_SUCCESS Data is read from FileOffset from the Handle into \r
	253	the buffer.\r
	254	**/\r
	255	RETURN_STATUS\r
	256	EFIAPI\r
	257	PeCoffLoaderImageReadFromMemory (\r
	258	IN VOID *FileHandle,\r
	259	IN UINTN FileOffset,\r
	260	IN OUT UINTN *ReadSize,\r
	261	OUT VOID *Buffer\r
ed66e1bc	262	);\r
fb3df220	263	\r
	264	\r
	265	/**\r
	266	Reapply fixups on a fixed up PE32/PE32+ image to allow virutal calling at EFI\r
	267	runtime. \r
	268	\r
	269	PE_COFF_LOADER_IMAGE_CONTEXT.FixupData stores information needed to reapply\r
	270	the fixups with a virtual mapping.\r
	271	\r
	272	\r
	273	@param ImageBase Base address of relocated image\r
	274	@param VirtImageBase Virtual mapping for ImageBase\r
	275	@param ImageSize Size of the image to relocate\r
	276	@param RelocationData Location to place results of read\r
	277	\r
	278	**/\r
	279	VOID\r
	280	EFIAPI\r
	281	PeCoffLoaderRelocateImageForRuntime (\r
	282	IN PHYSICAL_ADDRESS ImageBase,\r
	283	IN PHYSICAL_ADDRESS VirtImageBase,\r
	284	IN UINTN ImageSize,\r
	285	IN VOID *RelocationData\r
ed66e1bc	286	);\r
fb3df220	287	\r
3d7b0992 LG	288	/**\r
	289	Unloads a loaded PE/COFF image from memory and releases its taken resource.\r
	290	\r
	291	For NT32 emulator, the PE/COFF image loaded by system needs to release.\r
	292	For real platform, the PE/COFF image loaded by Core doesn't needs to be unloaded, \r
	293	this function can simply return RETURN_SUCCESS.\r
	294	\r
	295	@param ImageContext Pointer to the image context structure that describes the PE/COFF\r
	296	image to be unloaded.\r
fb3df220	297	\r
3d7b0992 LG	298	@retval RETURN_SUCCESS The PE/COFF image was unloaded successfully.\r
	299	**/\r
	300	RETURN_STATUS\r
	301	EFIAPI\r
	302	PeCoffLoaderUnloadImage (\r
	303	IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r
ed66e1bc	304	);\r
fb3df220	305	#endif\r