The PrePi code we inherited from ArmPlatformPkg contains a rather
obscure optimization, where entry points of the PE/COFF and LZMA
handling routines are recorded in special HOBs, allowing DXE core
to call into that code directly rather than carry its own copy of
these libraries.

Given that no ArmVirtPkg platforms actually include the library
resolutions* that take advantage of these optimizations, let's not
bother with them, and remove the associated code.

* EmbeddedPkg/Library/LzmaHobCustomDecompressLib/LzmaHobCustomDecompressLib.inf
  EmbeddedPkg/Library/DxeHobPeCoffLib/DxeHobPeCoffLib.inf

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
 ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf |   1 -
 ArmVirtPkg/PrePi/LzmaDecompress.h                   | 103 --------------------
 ArmVirtPkg/PrePi/PrePi.c                            |  11 ---
 3 files changed, 115 deletions(-)

diff --git a/ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf 
b/ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf
index 58290d2d1b76..b3a3f5da065e 100755
--- a/ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf
+++ b/ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf
@@ -51,7 +51,6 @@ [LibraryClasses]
   SerialPortLib
   ExtractGuidedSectionLib
   LzmaDecompressLib
-  PeCoffGetEntryPointLib
   PrePiLib
   MemoryAllocationLib
   HobLib
diff --git a/ArmVirtPkg/PrePi/LzmaDecompress.h 
b/ArmVirtPkg/PrePi/LzmaDecompress.h
deleted file mode 100644
index a79ff343d231..000000000000
--- a/ArmVirtPkg/PrePi/LzmaDecompress.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/** @file
-  LZMA Decompress Library header file
-
-  Copyright (c) 2006 - 2010, Intel Corporation. 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.
-
-**/
-
-#ifndef __LZMA_DECOMPRESS_H___
-#define __LZMA_DECOMPRESS_H___
-
-/**
-  Examines a GUIDed section and returns the size of the decoded buffer and the
-  size of an scratch buffer required to actually decode the data in a GUIDed 
section.
-
-  Examines a GUIDed section specified by InputSection.
-  If GUID for InputSection does not match the GUID that this handler supports,
-  then RETURN_UNSUPPORTED is returned.
-  If the required information can not be retrieved from InputSection,
-  then RETURN_INVALID_PARAMETER is returned.
-  If the GUID of InputSection does match the GUID that this handler supports,
-  then the size required to hold the decoded buffer is returned in 
OututBufferSize,
-  the size of an optional scratch buffer is returned in ScratchSize, and the 
Attributes field
-  from EFI_GUID_DEFINED_SECTION header of InputSection is returned in 
SectionAttribute.
-
-  If InputSection is NULL, then ASSERT().
-  If OutputBufferSize is NULL, then ASSERT().
-  If ScratchBufferSize is NULL, then ASSERT().
-  If SectionAttribute is NULL, then ASSERT().
-
-
-  @param[in]  InputSection       A pointer to a GUIDed section of an FFS 
formatted file.
-  @param[out] OutputBufferSize   A pointer to the size, in bytes, of an output 
buffer required
-                                 if the buffer specified by InputSection were 
decoded.
-  @param[out] ScratchBufferSize  A pointer to the size, in bytes, required as 
scratch space
-                                 if the buffer specified by InputSection were 
decoded.
-  @param[out] SectionAttribute   A pointer to the attributes of the GUIDed 
section. See the Attributes
-                                 field of EFI_GUID_DEFINED_SECTION in the PI 
Specification.
-
-  @retval  RETURN_SUCCESS            The information about InputSection was 
returned.
-  @retval  RETURN_UNSUPPORTED        The section specified by InputSection 
does not match the GUID this handler supports.
-  @retval  RETURN_INVALID_PARAMETER  The information can not be retrieved from 
the section specified by InputSection.
-
-**/
-RETURN_STATUS
-EFIAPI
-LzmaGuidedSectionGetInfo (
-  IN  CONST VOID  *InputSection,
-  OUT UINT32      *OutputBufferSize,
-  OUT UINT32      *ScratchBufferSize,
-  OUT UINT16      *SectionAttribute
-  );
-
-/**
-  Decompress a LZAM compressed GUIDed section into a caller allocated output 
buffer.
-
-  Decodes the GUIDed section specified by InputSection.
-  If GUID for InputSection does not match the GUID that this handler supports, 
then RETURN_UNSUPPORTED is returned.
-  If the data in InputSection can not be decoded, then 
RETURN_INVALID_PARAMETER is returned.
-  If the GUID of InputSection does match the GUID that this handler supports, 
then InputSection
-  is decoded into the buffer specified by OutputBuffer and the authentication 
status of this
-  decode operation is returned in AuthenticationStatus.  If the decoded buffer 
is identical to the
-  data in InputSection, then OutputBuffer is set to point at the data in 
InputSection.  Otherwise,
-  the decoded data will be placed in caller allocated buffer specified by 
OutputBuffer.
-
-  If InputSection is NULL, then ASSERT().
-  If OutputBuffer is NULL, then ASSERT().
-  If ScratchBuffer is NULL and this decode operation requires a scratch 
buffer, then ASSERT().
-  If AuthenticationStatus is NULL, then ASSERT().
-
-
-  @param[in]  InputSection  A pointer to a GUIDed section of an FFS formatted 
file.
-  @param[out] OutputBuffer  A pointer to a buffer that contains the result of 
a decode operation.
-  @param[out] ScratchBuffer A caller allocated buffer that may be required by 
this function
-                            as a scratch buffer to perform the decode 
operation.
-  @param[out] AuthenticationStatus
-                            A pointer to the authentication status of the 
decoded output buffer.
-                            See the definition of authentication status in the 
EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI
-                            section of the PI Specification. 
EFI_AUTH_STATUS_PLATFORM_OVERRIDE must
-                            never be set by this handler.
-
-  @retval  RETURN_SUCCESS            The buffer specified by InputSection was 
decoded.
-  @retval  RETURN_UNSUPPORTED        The section specified by InputSection 
does not match the GUID this handler supports.
-  @retval  RETURN_INVALID_PARAMETER  The section specified by InputSection can 
not be decoded.
-
-**/
-RETURN_STATUS
-EFIAPI
-LzmaGuidedSectionExtraction (
-  IN CONST  VOID    *InputSection,
-  OUT       VOID    **OutputBuffer,
-  OUT       VOID    *ScratchBuffer,        OPTIONAL
-  OUT       UINT32  *AuthenticationStatus
-  );
-
-#endif // __LZMADECOMPRESS_H__
-
diff --git a/ArmVirtPkg/PrePi/PrePi.c b/ArmVirtPkg/PrePi/PrePi.c
index fce4ab9428a5..f6abe2f2016b 100755
--- a/ArmVirtPkg/PrePi/PrePi.c
+++ b/ArmVirtPkg/PrePi/PrePi.c
@@ -17,7 +17,6 @@
 
 #include <Library/PrePiLib.h>
 #include <Library/PrintLib.h>
-#include <Library/PeCoffGetEntryPointLib.h>
 #include <Library/PrePiHobListPointerLib.h>
 #include <Library/TimerLib.h>
 #include <Library/PerformanceLib.h>
@@ -25,10 +24,8 @@
 
 #include <Ppi/GuidedSectionExtraction.h>
 #include <Ppi/ArmMpCoreInfo.h>
-#include <Guid/LzmaDecompress.h>
 
 #include "PrePi.h"
-#include "LzmaDecompress.h"
 
 VOID
 EFIAPI
@@ -98,14 +95,6 @@ PrePiMain (
   // SEC phase needs to run library constructors by hand.
   ProcessLibraryConstructorList ();
 
-  // Build HOBs to pass up our version of stuff the DXE Core needs to save 
space
-  BuildPeCoffLoaderHob ();
-  BuildExtractSectionHob (
-    &gLzmaCustomDecompressGuid,
-    LzmaGuidedSectionGetInfo,
-    LzmaGuidedSectionExtraction
-    );
-
   // Assume the FV that contains the SEC (our code) also contains a compressed 
FV.
   Status = DecompressFirstFv ();
   ASSERT_EFI_ERROR (Status);
-- 
2.11.0

_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel

Reply via email to