1 /** @file 2 Provides services to perform additional actions to relocate and unload 3 PE/Coff image for Emu environment specific purpose such as souce level debug. 4 This version only works for PEI phase 5 6 Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR> 7 Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR> 8 This program and the accompanying materials 9 are licensed and made available under the terms and conditions of the BSD License 10 which accompanies this distribution. The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php 12 13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16 **/ 17 #include <PiPei.h> 18 #include <Ppi/EmuThunk.h> 19 #include <Protocol/EmuThunk.h> 20 21 #include <Library/PeCoffLib.h> 22 #include <Library/PeiServicesLib.h> 23 #include <Library/DebugLib.h> 24 #include <Library/BaseLib.h> 25 #include <Library/PeCoffExtraActionLib.h> 26 #include <Library/EmuMagicPageLib.h> 27 28 // 29 // Cache of UnixThunk protocol 30 // 31 EMU_THUNK_PROTOCOL *mThunk = NULL; 32 33 /** 34 The function caches the pointer of the Unix thunk functions 35 It will ASSERT() if Unix thunk ppi is not installed. 36 37 @retval EFI_SUCCESS WinNT thunk protocol is found and cached. 38 39 **/ 40 EFI_STATUS 41 EFIAPI 42 EmuPeCoffGetThunkStucture ( 43 ) 44 { 45 EMU_THUNK_PPI *ThunkPpi; 46 EFI_STATUS Status; 47 48 49 // 50 // Locate Unix ThunkPpi for retrieving standard output handle 51 // 52 Status = PeiServicesLocatePpi ( 53 &gEmuThunkPpiGuid, 54 0, 55 NULL, 56 (VOID **) &ThunkPpi 57 ); 58 ASSERT_EFI_ERROR (Status); 59 60 EMU_MAGIC_PAGE()->Thunk = (EMU_THUNK_PROTOCOL *) ThunkPpi->Thunk (); 61 62 return EFI_SUCCESS; 63 } 64 65 /** 66 Performs additional actions after a PE/COFF image has been loaded and relocated. 67 68 If ImageContext is NULL, then ASSERT(). 69 70 @param ImageContext Pointer to the image context structure that describes the 71 PE/COFF image that has already been loaded and relocated. 72 73 **/ 74 VOID 75 EFIAPI 76 PeCoffLoaderRelocateImageExtraAction ( 77 IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext 78 ) 79 { 80 if (EMU_MAGIC_PAGE()->Thunk == NULL) { 81 EmuPeCoffGetThunkStucture (); 82 } 83 EMU_MAGIC_PAGE()->Thunk->PeCoffRelocateImageExtraAction (ImageContext); 84 } 85 86 87 /** 88 Performs additional actions just before a PE/COFF image is unloaded. Any resources 89 that were allocated by PeCoffLoaderRelocateImageExtraAction() must be freed. 90 91 If ImageContext is NULL, then ASSERT(). 92 93 @param ImageContext Pointer to the image context structure that describes the 94 PE/COFF image that is being unloaded. 95 96 **/ 97 VOID 98 EFIAPI 99 PeCoffLoaderUnloadImageExtraAction ( 100 IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext 101 ) 102 { 103 if (EMU_MAGIC_PAGE()->Thunk == NULL) { 104 EmuPeCoffGetThunkStucture (); 105 } 106 EMU_MAGIC_PAGE()->Thunk->PeCoffUnloadImageExtraAction (ImageContext); 107 } 108