+++ /dev/null
-/** @file\r
- Fixes Intel Itanium(TM) specific relocation types.\r
-\r
- Copyright (c) 2006, 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
- Module Name: PeCoffLoaderEx.c\r
-\r
-**/\r
-\r
-#include "BasePeCoffLibInternals.h"\r
-\r
-\r
-\r
-#define EXT_IMM64(Value, Address, Size, InstPos, ValPos) \\r
- Value |= (((UINT64)((*(Address) >> InstPos) & (((UINT64)1 << Size) - 1))) << ValPos)\r
-\r
-#define INS_IMM64(Value, Address, Size, InstPos, ValPos) \\r
- *(UINT32*)Address = (*(UINT32*)Address & ~(((1 << Size) - 1) << InstPos)) | \\r
- ((UINT32)((((UINT64)Value >> ValPos) & (((UINT64)1 << Size) - 1))) << InstPos)\r
-\r
-#define IMM64_IMM7B_INST_WORD_X 3\r
-#define IMM64_IMM7B_SIZE_X 7\r
-#define IMM64_IMM7B_INST_WORD_POS_X 4\r
-#define IMM64_IMM7B_VAL_POS_X 0\r
-\r
-#define IMM64_IMM9D_INST_WORD_X 3\r
-#define IMM64_IMM9D_SIZE_X 9\r
-#define IMM64_IMM9D_INST_WORD_POS_X 18\r
-#define IMM64_IMM9D_VAL_POS_X 7\r
-\r
-#define IMM64_IMM5C_INST_WORD_X 3\r
-#define IMM64_IMM5C_SIZE_X 5\r
-#define IMM64_IMM5C_INST_WORD_POS_X 13\r
-#define IMM64_IMM5C_VAL_POS_X 16\r
-\r
-#define IMM64_IC_INST_WORD_X 3\r
-#define IMM64_IC_SIZE_X 1\r
-#define IMM64_IC_INST_WORD_POS_X 12\r
-#define IMM64_IC_VAL_POS_X 21\r
-\r
-#define IMM64_IMM41a_INST_WORD_X 1\r
-#define IMM64_IMM41a_SIZE_X 10\r
-#define IMM64_IMM41a_INST_WORD_POS_X 14\r
-#define IMM64_IMM41a_VAL_POS_X 22\r
-\r
-#define IMM64_IMM41b_INST_WORD_X 1\r
-#define IMM64_IMM41b_SIZE_X 8\r
-#define IMM64_IMM41b_INST_WORD_POS_X 24\r
-#define IMM64_IMM41b_VAL_POS_X 32\r
-\r
-#define IMM64_IMM41c_INST_WORD_X 2\r
-#define IMM64_IMM41c_SIZE_X 23\r
-#define IMM64_IMM41c_INST_WORD_POS_X 0\r
-#define IMM64_IMM41c_VAL_POS_X 40\r
-\r
-#define IMM64_SIGN_INST_WORD_X 3\r
-#define IMM64_SIGN_SIZE_X 1\r
-#define IMM64_SIGN_INST_WORD_POS_X 27\r
-#define IMM64_SIGN_VAL_POS_X 63\r
-\r
-/**\r
- Performs an Itanium-based specific relocation fixup.\r
-\r
- @param Reloc Pointer to the relocation record.\r
- @param Fixup Pointer to the address to fix up.\r
- @param FixupData 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
- UINT64 *F64;\r
- UINT64 FixupVal;\r
-\r
- switch ((*Reloc) >> 12) {\r
- case EFI_IMAGE_REL_BASED_IA64_IMM64:\r
-\r
- //\r
- // Align it to bundle address before fixing up the\r
- // 64-bit immediate value of the movl instruction.\r
- //\r
-\r
- Fixup = (CHAR8 *)((UINTN) Fixup & (UINTN) ~(15));\r
- FixupVal = (UINT64)0;\r
-\r
- //\r
- // Extract the lower 32 bits of IMM64 from bundle\r
- //\r
- EXT_IMM64(FixupVal,\r
- (UINT32 *)Fixup + IMM64_IMM7B_INST_WORD_X,\r
- IMM64_IMM7B_SIZE_X,\r
- IMM64_IMM7B_INST_WORD_POS_X,\r
- IMM64_IMM7B_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64(FixupVal,\r
- (UINT32 *)Fixup + IMM64_IMM9D_INST_WORD_X,\r
- IMM64_IMM9D_SIZE_X,\r
- IMM64_IMM9D_INST_WORD_POS_X,\r
- IMM64_IMM9D_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64(FixupVal,\r
- (UINT32 *)Fixup + IMM64_IMM5C_INST_WORD_X,\r
- IMM64_IMM5C_SIZE_X,\r
- IMM64_IMM5C_INST_WORD_POS_X,\r
- IMM64_IMM5C_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64(FixupVal,\r
- (UINT32 *)Fixup + IMM64_IC_INST_WORD_X,\r
- IMM64_IC_SIZE_X,\r
- IMM64_IC_INST_WORD_POS_X,\r
- IMM64_IC_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64(FixupVal,\r
- (UINT32 *)Fixup + IMM64_IMM41a_INST_WORD_X,\r
- IMM64_IMM41a_SIZE_X,\r
- IMM64_IMM41a_INST_WORD_POS_X,\r
- IMM64_IMM41a_VAL_POS_X\r
- );\r
-\r
- //\r
- // Update 64-bit address\r
- //\r
- FixupVal += Adjust;\r
-\r
- //\r
- // Insert IMM64 into bundle\r
- //\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM7B_INST_WORD_X),\r
- IMM64_IMM7B_SIZE_X,\r
- IMM64_IMM7B_INST_WORD_POS_X,\r
- IMM64_IMM7B_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM9D_INST_WORD_X),\r
- IMM64_IMM9D_SIZE_X,\r
- IMM64_IMM9D_INST_WORD_POS_X,\r
- IMM64_IMM9D_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM5C_INST_WORD_X),\r
- IMM64_IMM5C_SIZE_X,\r
- IMM64_IMM5C_INST_WORD_POS_X,\r
- IMM64_IMM5C_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IC_INST_WORD_X),\r
- IMM64_IC_SIZE_X,\r
- IMM64_IC_INST_WORD_POS_X,\r
- IMM64_IC_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM41a_INST_WORD_X),\r
- IMM64_IMM41a_SIZE_X,\r
- IMM64_IMM41a_INST_WORD_POS_X,\r
- IMM64_IMM41a_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM41b_INST_WORD_X),\r
- IMM64_IMM41b_SIZE_X,\r
- IMM64_IMM41b_INST_WORD_POS_X,\r
- IMM64_IMM41b_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_IMM41c_INST_WORD_X),\r
- IMM64_IMM41c_SIZE_X,\r
- IMM64_IMM41c_INST_WORD_POS_X,\r
- IMM64_IMM41c_VAL_POS_X\r
- );\r
-\r
- INS_IMM64(FixupVal,\r
- ((UINT32 *)Fixup + IMM64_SIGN_INST_WORD_X),\r
- IMM64_SIGN_SIZE_X,\r
- IMM64_SIGN_INST_WORD_POS_X,\r
- IMM64_SIGN_VAL_POS_X\r
- );\r
-\r
- F64 = (UINT64 *) Fixup;\r
- if (*FixupData != NULL) {\r
- *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));\r
- *(UINT64 *)(*FixupData) = *F64;\r
- *FixupData = *FixupData + sizeof(UINT64);\r
- }\r
- break;\r
-\r
- default:\r
- return RETURN_UNSUPPORTED;\r
- }\r
-\r
- return RETURN_SUCCESS;\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
- This function implies the basic PE/COFF loader/relocator supports IA32, EBC,\r
- & X64 images. Calling the entry point in a correct mannor is up to the\r
- consumer of this library. This version also supports the special relocations\r
- for Itanium.\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
- if ((Machine == EFI_IMAGE_MACHINE_IPF) || (Machine == EFI_IMAGE_MACHINE_IA32) ||\r
- (Machine == EFI_IMAGE_MACHINE_EBC) || (Machine == EFI_IMAGE_MACHINE_X64)) {\r
- return TRUE;\r
- }\r
-\r
- return FALSE;\r
-}\r
-\r
-\r
-/**\r
- ImageRead function that operates on a memory buffer whos base is passed into\r
- FileHandle.\r
-\r
- @param Reloc Ponter to baes of the input stream\r
- @param Fixup Offset to the start of the buffer\r
- @param FixupData Number of bytes to copy into the buffer\r
- @param Adjust 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
-PeHotRelocateImageEx (\r
- IN UINT16 *Reloc,\r
- IN OUT CHAR8 *Fixup,\r
- IN OUT CHAR8 **FixupData,\r
- IN UINT64 Adjust\r
- )\r
-{\r
- UINT64 *F64;\r
- UINT64 FixupVal;\r
-\r
- switch ((*Reloc) >> 12) {\r
- case EFI_IMAGE_REL_BASED_DIR64:\r
- F64 = (UINT64 *) Fixup;\r
- *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT64));\r
- if (*(UINT64 *) (*FixupData) == *F64) {\r
- *F64 = *F64 + (UINT64) Adjust;\r
- }\r
-\r
- *FixupData = *FixupData + sizeof (UINT64);\r
- break;\r
-\r
- case EFI_IMAGE_REL_BASED_IA64_IMM64:\r
- F64 = (UINT64 *) Fixup;\r
- *FixupData = ALIGN_POINTER (*FixupData, sizeof (UINT64));\r
- if (*(UINT64 *) (*FixupData) == *F64) {\r
- //\r
- // Align it to bundle address before fixing up the\r
- // 64-bit immediate value of the movl instruction.\r
- //\r
- //\r
- Fixup = (CHAR8 *) ((UINT64) Fixup & (UINT64)~(15));\r
- FixupVal = (UINT64) 0;\r
-\r
- //\r
- // Extract the lower 32 bits of IMM64 from bundle\r
- //\r
- EXT_IMM64 (\r
- FixupVal,\r
- (UINT32 *) Fixup + IMM64_IMM7B_INST_WORD_X,\r
- IMM64_IMM7B_SIZE_X,\r
- IMM64_IMM7B_INST_WORD_POS_X,\r
- IMM64_IMM7B_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64 (\r
- FixupVal,\r
- (UINT32 *) Fixup + IMM64_IMM9D_INST_WORD_X,\r
- IMM64_IMM9D_SIZE_X,\r
- IMM64_IMM9D_INST_WORD_POS_X,\r
- IMM64_IMM9D_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64 (\r
- FixupVal,\r
- (UINT32 *) Fixup + IMM64_IMM5C_INST_WORD_X,\r
- IMM64_IMM5C_SIZE_X,\r
- IMM64_IMM5C_INST_WORD_POS_X,\r
- IMM64_IMM5C_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64 (\r
- FixupVal,\r
- (UINT32 *) Fixup + IMM64_IC_INST_WORD_X,\r
- IMM64_IC_SIZE_X,\r
- IMM64_IC_INST_WORD_POS_X,\r
- IMM64_IC_VAL_POS_X\r
- );\r
-\r
- EXT_IMM64 (\r
- FixupVal,\r
- (UINT32 *) Fixup + IMM64_IMM41a_INST_WORD_X,\r
- IMM64_IMM41a_SIZE_X,\r
- IMM64_IMM41a_INST_WORD_POS_X,\r
- IMM64_IMM41a_VAL_POS_X\r
- );\r
-\r
- //\r
- // Update 64-bit address\r
- //\r
- FixupVal += Adjust;\r
-\r
- //\r
- // Insert IMM64 into bundle\r
- //\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM7B_INST_WORD_X),\r
- IMM64_IMM7B_SIZE_X,\r
- IMM64_IMM7B_INST_WORD_POS_X,\r
- IMM64_IMM7B_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM9D_INST_WORD_X),\r
- IMM64_IMM9D_SIZE_X,\r
- IMM64_IMM9D_INST_WORD_POS_X,\r
- IMM64_IMM9D_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM5C_INST_WORD_X),\r
- IMM64_IMM5C_SIZE_X,\r
- IMM64_IMM5C_INST_WORD_POS_X,\r
- IMM64_IMM5C_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IC_INST_WORD_X),\r
- IMM64_IC_SIZE_X,\r
- IMM64_IC_INST_WORD_POS_X,\r
- IMM64_IC_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM41a_INST_WORD_X),\r
- IMM64_IMM41a_SIZE_X,\r
- IMM64_IMM41a_INST_WORD_POS_X,\r
- IMM64_IMM41a_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM41b_INST_WORD_X),\r
- IMM64_IMM41b_SIZE_X,\r
- IMM64_IMM41b_INST_WORD_POS_X,\r
- IMM64_IMM41b_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_IMM41c_INST_WORD_X),\r
- IMM64_IMM41c_SIZE_X,\r
- IMM64_IMM41c_INST_WORD_POS_X,\r
- IMM64_IMM41c_VAL_POS_X\r
- );\r
-\r
- INS_IMM64 (\r
- FixupVal,\r
- ((UINT32 *) Fixup + IMM64_SIGN_INST_WORD_X),\r
- IMM64_SIGN_SIZE_X,\r
- IMM64_SIGN_INST_WORD_POS_X,\r
- IMM64_SIGN_VAL_POS_X\r
- );\r
-\r
- *(UINT64 *) (*FixupData) = *F64;\r
- }\r
-\r
- *FixupData = *FixupData + sizeof (UINT64);\r
- break;\r
-\r
- default:\r
- DEBUG ((EFI_D_ERROR, "PeHotRelocateEx:unknown fixed type\n"));\r
- return RETURN_UNSUPPORTED;\r
- }\r
-\r
- return RETURN_SUCCESS;\r
-}\r
-\r
-\r
-\r
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