--- /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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