BaseTools/Source/C/GenFw/Elf64Convert.c

   1 /** @file
   2 Elf64 convert solution
   3
   4 Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>
   5 Portions copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
   6
   7 This program and the accompanying materials are licensed and made available
   8 under the terms and conditions of the BSD License which accompanies this
   9 distribution.  The full text of the license may be found at
  10 http://opensource.org/licenses/bsd-license.php
  11
  12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #include "WinNtInclude.h"
  18
  19 #ifndef __GNUC__
  20 #include <windows.h>
  21 #include <io.h>
  22 #endif
  23 #include <assert.h>
  24 #include <stdbool.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <time.h>
  29 #include <ctype.h>
  30
  31 #include <Common/UefiBaseTypes.h>
  32 #include <IndustryStandard/PeImage.h>
  33
  34 #include "PeCoffLib.h"
  35 #include "EfiUtilityMsgs.h"
  36
  37 #include "GenFw.h"
  38 #include "ElfConvert.h"
  39 #include "Elf64Convert.h"
  40
  41 STATIC
  42 VOID
  43 ScanSections64 (
  44   VOID
  45   );
  46
  47 STATIC
  48 BOOLEAN
  49 WriteSections64 (
  50   SECTION_FILTER_TYPES  FilterType
  51   );
  52
  53 STATIC
  54 VOID
  55 WriteRelocations64 (
  56   VOID
  57   );
  58
  59 STATIC
  60 VOID
  61 WriteDebug64 (
  62   VOID
  63   );
  64
  65 STATIC
  66 VOID
  67 SetImageSize64 (
  68   VOID
  69   );
  70
  71 STATIC
  72 VOID
  73 CleanUp64 (
  74   VOID
  75   );
  76
  77 //
  78 // Rename ELF32 strucutres to common names to help when porting to ELF64.
  79 //
  80 typedef Elf64_Shdr Elf_Shdr;
  81 typedef Elf64_Ehdr Elf_Ehdr;
  82 typedef Elf64_Rel Elf_Rel;
  83 typedef Elf64_Rela Elf_Rela;
  84 typedef Elf64_Sym Elf_Sym;
  85 typedef Elf64_Phdr Elf_Phdr;
  86 typedef Elf64_Dyn Elf_Dyn;
  87 #define ELFCLASS ELFCLASS64
  88 #define ELF_R_TYPE(r) ELF64_R_TYPE(r)
  89 #define ELF_R_SYM(r) ELF64_R_SYM(r)
  90
  91 //
  92 // Well known ELF structures.
  93 //
  94 STATIC Elf_Ehdr *mEhdr;
  95 STATIC Elf_Shdr *mShdrBase;
  96 STATIC Elf_Phdr *mPhdrBase;
  97
  98 //
  99 // Coff information
 100 //
 101 STATIC UINT32 mCoffAlignment = 0x20;
 102
 103 //
 104 // PE section alignment.
 105 //
 106 STATIC const UINT16 mCoffNbrSections = 4;
 107
 108 //
 109 // ELF sections to offset in Coff file.
 110 //
 111 STATIC UINT32 *mCoffSectionsOffset = NULL;
 112
 113 //
 114 // Offsets in COFF file
 115 //
 116 STATIC UINT32 mNtHdrOffset;
 117 STATIC UINT32 mTextOffset;
 118 STATIC UINT32 mDataOffset;
 119 STATIC UINT32 mHiiRsrcOffset;
 120 STATIC UINT32 mRelocOffset;
 121 STATIC UINT32 mDebugOffset;
 122
 123 //
 124 // Initialization Function
 125 //
 126 BOOLEAN
 127 InitializeElf64 (
 128   UINT8               *FileBuffer,
 129   ELF_FUNCTION_TABLE  *ElfFunctions
 130   )
 131 {
 132   //
 133   // Initialize data pointer and structures.
 134   //
 135   VerboseMsg ("Set EHDR");
 136   mEhdr = (Elf_Ehdr*) FileBuffer;
 137
 138   //
 139   // Check the ELF64 specific header information.
 140   //
 141   VerboseMsg ("Check ELF64 Header Information");
 142   if (mEhdr->e_ident[EI_CLASS] != ELFCLASS64) {
 143     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS64");
 144     return FALSE;
 145   }
 146   if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {
 147     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");
 148     return FALSE;
 149   }
 150   if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {
 151     Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");
 152     return FALSE;
 153   }
 154   if (!((mEhdr->e_machine == EM_X86_64) || (mEhdr->e_machine == EM_AARCH64))) {
 155     Error (NULL, 0, 3000, "Unsupported", "ELF e_machine not EM_X86_64 or EM_AARCH64");
 156     return FALSE;
 157   }
 158   if (mEhdr->e_version != EV_CURRENT) {
 159     Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);
 160     return FALSE;
 161   }
 162
 163   //
 164   // Update section header pointers
 165   //
 166   VerboseMsg ("Update Header Pointers");
 167   mShdrBase  = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);
 168   mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);
 169
 170   //
 171   // Create COFF Section offset buffer and zero.
 172   //
 173   VerboseMsg ("Create COFF Section Offset Buffer");
 174   mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));
 175   if (mCoffSectionsOffset == NULL) {
 176     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 177     return FALSE;
 178   }
 179   memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));
 180
 181   //
 182   // Fill in function pointers.
 183   //
 184   VerboseMsg ("Fill in Function Pointers");
 185   ElfFunctions->ScanSections = ScanSections64;
 186   ElfFunctions->WriteSections = WriteSections64;
 187   ElfFunctions->WriteRelocations = WriteRelocations64;
 188   ElfFunctions->WriteDebug = WriteDebug64;
 189   ElfFunctions->SetImageSize = SetImageSize64;
 190   ElfFunctions->CleanUp = CleanUp64;
 191
 192   return TRUE;
 193 }
 194
 195
 196 //
 197 // Header by Index functions
 198 //
 199 STATIC
 200 Elf_Shdr*
 201 GetShdrByIndex (
 202   UINT32 Num
 203   )
 204 {
 205   if (Num >= mEhdr->e_shnum) {
 206     Error (NULL, 0, 3000, "Invalid", "GetShdrByIndex: Index %u is too high.", Num);
 207     exit(EXIT_FAILURE);
 208   }
 209
 210   return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);
 211 }
 212
 213 STATIC
 214 UINT32
 215 CoffAlign (
 216   UINT32 Offset
 217   )
 218 {
 219   return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);
 220 }
 221
 222 STATIC
 223 UINT32
 224 DebugRvaAlign (
 225   UINT32 Offset
 226   )
 227 {
 228   return (Offset + 3) & ~3;
 229 }
 230
 231 //
 232 // filter functions
 233 //
 234 STATIC
 235 BOOLEAN
 236 IsTextShdr (
 237   Elf_Shdr *Shdr
 238   )
 239 {
 240   return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
 241 }
 242
 243 STATIC
 244 BOOLEAN
 245 IsHiiRsrcShdr (
 246   Elf_Shdr *Shdr
 247   )
 248 {
 249   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 250
 251   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);
 252 }
 253
 254 STATIC
 255 BOOLEAN
 256 IsDataShdr (
 257   Elf_Shdr *Shdr
 258   )
 259 {
 260   if (IsHiiRsrcShdr(Shdr)) {
 261     return FALSE;
 262   }
 263   return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
 264 }
 265
 266 STATIC
 267 BOOLEAN
 268 IsStrtabShdr (
 269   Elf_Shdr *Shdr
 270   )
 271 {
 272   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 273
 274   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_STRTAB_SECTION_NAME) == 0);
 275 }
 276
 277 STATIC
 278 Elf_Shdr *
 279 FindStrtabShdr (
 280   VOID
 281   )
 282 {
 283   UINT32 i;
 284   for (i = 0; i < mEhdr->e_shnum; i++) {
 285     Elf_Shdr *shdr = GetShdrByIndex(i);
 286     if (IsStrtabShdr(shdr)) {
 287       return shdr;
 288     }
 289   }
 290   return NULL;
 291 }
 292
 293 STATIC
 294 const UINT8 *
 295 GetSymName (
 296   Elf_Sym *Sym
 297   )
 298 {
 299   if (Sym->st_name == 0) {
 300     return NULL;
 301   }
 302
 303   Elf_Shdr *StrtabShdr = FindStrtabShdr();
 304   if (StrtabShdr == NULL) {
 305     return NULL;
 306   }
 307
 308   assert(Sym->st_name < StrtabShdr->sh_size);
 309
 310   UINT8* StrtabContents = (UINT8*)mEhdr + StrtabShdr->sh_offset;
 311
 312   bool foundEnd = false;
 313   UINT32 i;
 314   for (i= Sym->st_name; (i < StrtabShdr->sh_size) && !foundEnd; i++) {
 315     foundEnd = StrtabContents[i] == 0;
 316   }
 317   assert(foundEnd);
 318
 319   return StrtabContents + Sym->st_name;
 320 }
 321
 322 //
 323 // Elf functions interface implementation
 324 //
 325
 326 STATIC
 327 VOID
 328 ScanSections64 (
 329   VOID
 330   )
 331 {
 332   UINT32                          i;
 333   EFI_IMAGE_DOS_HEADER            *DosHdr;
 334   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
 335   UINT32                          CoffEntry;
 336   UINT32                          SectionCount;
 337   BOOLEAN                         FoundSection;
 338
 339   CoffEntry = 0;
 340   mCoffOffset = 0;
 341
 342   //
 343   // Coff file start with a DOS header.
 344   //
 345   mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;
 346   mNtHdrOffset = mCoffOffset;
 347   switch (mEhdr->e_machine) {
 348   case EM_X86_64:
 349   case EM_IA_64:
 350   case EM_AARCH64:
 351     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
 352   break;
 353   default:
 354     VerboseMsg ("%s unknown e_machine type %hu. Assume X64", mInImageName, mEhdr->e_machine);
 355     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
 356   break;
 357   }
 358
 359   mTableOffset = mCoffOffset;
 360   mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);
 361
 362   //
 363   // Set mCoffAlignment to the maximum alignment of the input sections
 364   // we care about
 365   //
 366   for (i = 0; i < mEhdr->e_shnum; i++) {
 367     Elf_Shdr *shdr = GetShdrByIndex(i);
 368     if (shdr->sh_addralign <= mCoffAlignment) {
 369       continue;
 370     }
 371     if (IsTextShdr(shdr) || IsDataShdr(shdr) || IsHiiRsrcShdr(shdr)) {
 372       mCoffAlignment = (UINT32)shdr->sh_addralign;
 373     }
 374   }
 375
 376   //
 377   // Move the PE/COFF header right before the first section. This will help us
 378   // save space when converting to TE.
 379   //
 380   if (mCoffAlignment > mCoffOffset) {
 381     mNtHdrOffset += mCoffAlignment - mCoffOffset;
 382     mTableOffset += mCoffAlignment - mCoffOffset;
 383     mCoffOffset = mCoffAlignment;
 384   }
 385
 386   //
 387   // First text sections.
 388   //
 389   mCoffOffset = CoffAlign(mCoffOffset);
 390   mTextOffset = mCoffOffset;
 391   FoundSection = FALSE;
 392   SectionCount = 0;
 393   for (i = 0; i < mEhdr->e_shnum; i++) {
 394     Elf_Shdr *shdr = GetShdrByIndex(i);
 395     if (IsTextShdr(shdr)) {
 396       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 397         // the alignment field is valid
 398         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 399           // if the section address is aligned we must align PE/COFF
 400           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 401         } else {
 402           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 403         }
 404       }
 405
 406       /* Relocate entry.  */
 407       if ((mEhdr->e_entry >= shdr->sh_addr) &&
 408           (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {
 409         CoffEntry = (UINT32) (mCoffOffset + mEhdr->e_entry - shdr->sh_addr);
 410       }
 411
 412       //
 413       // Set mTextOffset with the offset of the first '.text' section
 414       //
 415       if (!FoundSection) {
 416         mTextOffset = mCoffOffset;
 417         FoundSection = TRUE;
 418       }
 419
 420       mCoffSectionsOffset[i] = mCoffOffset;
 421       mCoffOffset += (UINT32) shdr->sh_size;
 422       SectionCount ++;
 423     }
 424   }
 425
 426   if (!FoundSection) {
 427     Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");
 428     assert (FALSE);
 429   }
 430
 431   mDebugOffset = DebugRvaAlign(mCoffOffset);
 432   mCoffOffset = CoffAlign(mCoffOffset);
 433
 434   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 435     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);
 436   }
 437
 438   //
 439   //  Then data sections.
 440   //
 441   mDataOffset = mCoffOffset;
 442   FoundSection = FALSE;
 443   SectionCount = 0;
 444   for (i = 0; i < mEhdr->e_shnum; i++) {
 445     Elf_Shdr *shdr = GetShdrByIndex(i);
 446     if (IsDataShdr(shdr)) {
 447       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 448         // the alignment field is valid
 449         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 450           // if the section address is aligned we must align PE/COFF
 451           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 452         } else {
 453           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 454         }
 455       }
 456
 457       //
 458       // Set mDataOffset with the offset of the first '.data' section
 459       //
 460       if (!FoundSection) {
 461         mDataOffset = mCoffOffset;
 462         FoundSection = TRUE;
 463       }
 464       mCoffSectionsOffset[i] = mCoffOffset;
 465       mCoffOffset += (UINT32) shdr->sh_size;
 466       SectionCount ++;
 467     }
 468   }
 469
 470   //
 471   // Make room for .debug data in .data (or .text if .data is empty) instead of
 472   // putting it in a section of its own. This is explicitly allowed by the
 473   // PE/COFF spec, and prevents bloat in the binary when using large values for
 474   // section alignment.
 475   //
 476   if (SectionCount > 0) {
 477     mDebugOffset = DebugRvaAlign(mCoffOffset);
 478   }
 479   mCoffOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY) +
 480                 sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) +
 481                 strlen(mInImageName) + 1;
 482
 483   mCoffOffset = CoffAlign(mCoffOffset);
 484   if (SectionCount == 0) {
 485     mDataOffset = mCoffOffset;
 486   }
 487
 488   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 489     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);
 490   }
 491
 492   //
 493   //  The HII resource sections.
 494   //
 495   mHiiRsrcOffset = mCoffOffset;
 496   for (i = 0; i < mEhdr->e_shnum; i++) {
 497     Elf_Shdr *shdr = GetShdrByIndex(i);
 498     if (IsHiiRsrcShdr(shdr)) {
 499       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 500         // the alignment field is valid
 501         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 502           // if the section address is aligned we must align PE/COFF
 503           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 504         } else {
 505           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 506         }
 507       }
 508       if (shdr->sh_size != 0) {
 509         mHiiRsrcOffset = mCoffOffset;
 510         mCoffSectionsOffset[i] = mCoffOffset;
 511         mCoffOffset += (UINT32) shdr->sh_size;
 512         mCoffOffset = CoffAlign(mCoffOffset);
 513         SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);
 514       }
 515       break;
 516     }
 517   }
 518
 519   mRelocOffset = mCoffOffset;
 520
 521   //
 522   // Allocate base Coff file.  Will be expanded later for relocations.
 523   //
 524   mCoffFile = (UINT8 *)malloc(mCoffOffset);
 525   if (mCoffFile == NULL) {
 526     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 527   }
 528   assert (mCoffFile != NULL);
 529   memset(mCoffFile, 0, mCoffOffset);
 530
 531   //
 532   // Fill headers.
 533   //
 534   DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;
 535   DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;
 536   DosHdr->e_lfanew = mNtHdrOffset;
 537
 538   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);
 539
 540   NtHdr->Pe32Plus.Signature = EFI_IMAGE_NT_SIGNATURE;
 541
 542   switch (mEhdr->e_machine) {
 543   case EM_X86_64:
 544     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;
 545     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 546     break;
 547   case EM_IA_64:
 548     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_IPF;
 549     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 550     break;
 551   case EM_AARCH64:
 552     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_AARCH64;
 553     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 554     break;
 555   default:
 556     VerboseMsg ("%s unknown e_machine type. Assume X64", (UINTN)mEhdr->e_machine);
 557     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;
 558     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 559   }
 560
 561   NtHdr->Pe32Plus.FileHeader.NumberOfSections = mCoffNbrSections;
 562   NtHdr->Pe32Plus.FileHeader.TimeDateStamp = (UINT32) time(NULL);
 563   mImageTimeStamp = NtHdr->Pe32Plus.FileHeader.TimeDateStamp;
 564   NtHdr->Pe32Plus.FileHeader.PointerToSymbolTable = 0;
 565   NtHdr->Pe32Plus.FileHeader.NumberOfSymbols = 0;
 566   NtHdr->Pe32Plus.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32Plus.OptionalHeader);
 567   NtHdr->Pe32Plus.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE
 568     | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED
 569     | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED
 570     | EFI_IMAGE_FILE_LARGE_ADDRESS_AWARE;
 571
 572   NtHdr->Pe32Plus.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;
 573   NtHdr->Pe32Plus.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;
 574   NtHdr->Pe32Plus.OptionalHeader.SizeOfUninitializedData = 0;
 575   NtHdr->Pe32Plus.OptionalHeader.AddressOfEntryPoint = CoffEntry;
 576
 577   NtHdr->Pe32Plus.OptionalHeader.BaseOfCode = mTextOffset;
 578
 579   NtHdr->Pe32Plus.OptionalHeader.ImageBase = 0;
 580   NtHdr->Pe32Plus.OptionalHeader.SectionAlignment = mCoffAlignment;
 581   NtHdr->Pe32Plus.OptionalHeader.FileAlignment = mCoffAlignment;
 582   NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = 0;
 583
 584   NtHdr->Pe32Plus.OptionalHeader.SizeOfHeaders = mTextOffset;
 585   NtHdr->Pe32Plus.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;
 586
 587   //
 588   // Section headers.
 589   //
 590   if ((mDataOffset - mTextOffset) > 0) {
 591     CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,
 592             EFI_IMAGE_SCN_CNT_CODE
 593             | EFI_IMAGE_SCN_MEM_EXECUTE
 594             | EFI_IMAGE_SCN_MEM_READ);
 595   } else {
 596     // Don't make a section of size 0.
 597     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 598   }
 599
 600   if ((mHiiRsrcOffset - mDataOffset) > 0) {
 601     CreateSectionHeader (".data", mDataOffset, mHiiRsrcOffset - mDataOffset,
 602             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 603             | EFI_IMAGE_SCN_MEM_WRITE
 604             | EFI_IMAGE_SCN_MEM_READ);
 605   } else {
 606     // Don't make a section of size 0.
 607     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 608   }
 609
 610   if ((mRelocOffset - mHiiRsrcOffset) > 0) {
 611     CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,
 612             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 613             | EFI_IMAGE_SCN_MEM_READ);
 614
 615     NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;
 616     NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;
 617   } else {
 618     // Don't make a section of size 0.
 619     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 620   }
 621
 622 }
 623
 624 STATIC
 625 BOOLEAN
 626 WriteSections64 (
 627   SECTION_FILTER_TYPES  FilterType
 628   )
 629 {
 630   UINT32      Idx;
 631   Elf_Shdr    *SecShdr;
 632   UINT32      SecOffset;
 633   BOOLEAN     (*Filter)(Elf_Shdr *);
 634
 635   //
 636   // Initialize filter pointer
 637   //
 638   switch (FilterType) {
 639     case SECTION_TEXT:
 640       Filter = IsTextShdr;
 641       break;
 642     case SECTION_HII:
 643       Filter = IsHiiRsrcShdr;
 644       break;
 645     case SECTION_DATA:
 646       Filter = IsDataShdr;
 647       break;
 648     default:
 649       return FALSE;
 650   }
 651
 652   //
 653   // First: copy sections.
 654   //
 655   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 656     Elf_Shdr *Shdr = GetShdrByIndex(Idx);
 657     if ((*Filter)(Shdr)) {
 658       switch (Shdr->sh_type) {
 659       case SHT_PROGBITS:
 660         /* Copy.  */
 661         memcpy(mCoffFile + mCoffSectionsOffset[Idx],
 662               (UINT8*)mEhdr + Shdr->sh_offset,
 663               (size_t) Shdr->sh_size);
 664         break;
 665
 666       case SHT_NOBITS:
 667         memset(mCoffFile + mCoffSectionsOffset[Idx], 0, (size_t) Shdr->sh_size);
 668         break;
 669
 670       default:
 671         //
 672         //  Ignore for unkown section type.
 673         //
 674         VerboseMsg ("%s unknown section type %x. We directly copy this section into Coff file", mInImageName, (unsigned)Shdr->sh_type);
 675         break;
 676       }
 677     }
 678   }
 679
 680   //
 681   // Second: apply relocations.
 682   //
 683   VerboseMsg ("Applying Relocations...");
 684   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 685     //
 686     // Determine if this is a relocation section.
 687     //
 688     Elf_Shdr *RelShdr = GetShdrByIndex(Idx);
 689     if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {
 690       continue;
 691     }
 692
 693     //
 694     // If this is a ET_DYN (PIE) executable, we will encounter a dynamic SHT_RELA
 695     // section that applies to the entire binary, and which will have its section
 696     // index set to #0 (which is a NULL section with the SHF_ALLOC bit cleared).
 697     //
 698     // In the absence of GOT based relocations (which we currently don't support),
 699     // this RELA section will contain redundant R_xxx_RELATIVE relocations, one
 700     // for every R_xxx_xx64 relocation appearing in the per-section RELA sections.
 701     // (i.e., .rela.text and .rela.data)
 702     //
 703     if (RelShdr->sh_info == 0) {
 704       continue;
 705     }
 706
 707     //
 708     // Relocation section found.  Now extract section information that the relocations
 709     // apply to in the ELF data and the new COFF data.
 710     //
 711     SecShdr = GetShdrByIndex(RelShdr->sh_info);
 712     SecOffset = mCoffSectionsOffset[RelShdr->sh_info];
 713
 714     //
 715     // Only process relocations for the current filter type.
 716     //
 717     if (RelShdr->sh_type == SHT_RELA && (*Filter)(SecShdr)) {
 718       UINT64 RelIdx;
 719
 720       //
 721       // Determine the symbol table referenced by the relocation data.
 722       //
 723       Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);
 724       UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;
 725
 726       //
 727       // Process all relocation entries for this section.
 728       //
 729       for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += (UINT32) RelShdr->sh_entsize) {
 730
 731         //
 732         // Set pointer to relocation entry
 733         //
 734         Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
 735
 736         //
 737         // Set pointer to symbol table entry associated with the relocation entry.
 738         //
 739         Elf_Sym  *Sym = (Elf_Sym *)(Symtab + ELF_R_SYM(Rel->r_info) * SymtabShdr->sh_entsize);
 740
 741         Elf_Shdr *SymShdr;
 742         UINT8    *Targ;
 743
 744         //
 745         // Check section header index found in symbol table and get the section
 746         // header location.
 747         //
 748         if (Sym->st_shndx == SHN_UNDEF
 749             || Sym->st_shndx >= mEhdr->e_shnum) {
 750           const UINT8 *SymName = GetSymName(Sym);
 751           if (SymName == NULL) {
 752             SymName = (const UINT8 *)"<unknown>";
 753           }
 754
 755           Error (NULL, 0, 3000, "Invalid",
 756                  "%s: Bad definition for symbol '%s'@%#llx or unsupported symbol type.  "
 757                  "For example, absolute and undefined symbols are not supported.",
 758                  mInImageName, SymName, Sym->st_value);
 759
 760           exit(EXIT_FAILURE);
 761         }
 762         SymShdr = GetShdrByIndex(Sym->st_shndx);
 763
 764         //
 765         // Convert the relocation data to a pointer into the coff file.
 766         //
 767         // Note:
 768         //   r_offset is the virtual address of the storage unit to be relocated.
 769         //   sh_addr is the virtual address for the base of the section.
 770         //
 771         //   r_offset in a memory address.
 772         //   Convert it to a pointer in the coff file.
 773         //
 774         Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);
 775
 776         //
 777         // Determine how to handle each relocation type based on the machine type.
 778         //
 779         if (mEhdr->e_machine == EM_X86_64) {
 780           switch (ELF_R_TYPE(Rel->r_info)) {
 781           case R_X86_64_NONE:
 782             break;
 783           case R_X86_64_64:
 784             //
 785             // Absolute relocation.
 786             //
 787             VerboseMsg ("R_X86_64_64");
 788             VerboseMsg ("Offset: 0x%08X, Addend: 0x%016LX",
 789               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 790               *(UINT64 *)Targ);
 791             *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
 792             VerboseMsg ("Relocation:  0x%016LX", *(UINT64*)Targ);
 793             break;
 794           case R_X86_64_32:
 795             VerboseMsg ("R_X86_64_32");
 796             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 797               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 798               *(UINT32 *)Targ);
 799             *(UINT32 *)Targ = (UINT32)((UINT64)(*(UINT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
 800             VerboseMsg ("Relocation:  0x%08X", *(UINT32*)Targ);
 801             break;
 802           case R_X86_64_32S:
 803             VerboseMsg ("R_X86_64_32S");
 804             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 805               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 806               *(UINT32 *)Targ);
 807             *(INT32 *)Targ = (INT32)((INT64)(*(INT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
 808             VerboseMsg ("Relocation:  0x%08X", *(UINT32*)Targ);
 809             break;
 810
 811           case R_X86_64_PLT32:
 812             //
 813             // Treat R_X86_64_PLT32 relocations as R_X86_64_PC32: this is
 814             // possible since we know all code symbol references resolve to
 815             // definitions in the same module (UEFI has no shared libraries),
 816             // and so there is never a reason to jump via a PLT entry,
 817             // allowing us to resolve the reference using the symbol directly.
 818             //
 819             VerboseMsg ("Treating R_X86_64_PLT32 as R_X86_64_PC32 ...");
 820             /* fall through */
 821           case R_X86_64_PC32:
 822             //
 823             // Relative relocation: Symbol - Ip + Addend
 824             //
 825             VerboseMsg ("R_X86_64_PC32");
 826             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 827               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 828               *(UINT32 *)Targ);
 829             *(UINT32 *)Targ = (UINT32) (*(UINT32 *)Targ
 830               + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)
 831               - (SecOffset - SecShdr->sh_addr));
 832             VerboseMsg ("Relocation:  0x%08X", *(UINT32 *)Targ);
 833             break;
 834           default:
 835             Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 836           }
 837         } else if (mEhdr->e_machine == EM_AARCH64) {
 838
 839           switch (ELF_R_TYPE(Rel->r_info)) {
 840
 841           case R_AARCH64_ADR_PREL_PG_HI21:
 842             //
 843             // AArch64 PG_H21 relocations are typically paired with ABS_LO12
 844             // relocations, where a PC-relative reference with +/- 4 GB range is
 845             // split into a relative high part and an absolute low part. Since
 846             // the absolute low part represents the offset into a 4 KB page, we
 847             // either have to convert the ADRP into an ADR instruction, or we
 848             // need to use a section alignment of at least 4 KB, so that the
 849             // binary appears at a correct offset at runtime. In any case, we
 850             // have to make sure that the 4 KB relative offsets of both the
 851             // section containing the reference as well as the section to which
 852             // it refers have not been changed during PE/COFF conversion (i.e.,
 853             // in ScanSections64() above).
 854             //
 855             if (mCoffAlignment < 0x1000) {
 856               //
 857               // Attempt to convert the ADRP into an ADR instruction.
 858               // This is only possible if the symbol is within +/- 1 MB.
 859               //
 860               INT64 Offset;
 861
 862               // Decode the ADRP instruction
 863               Offset = (INT32)((*(UINT32 *)Targ & 0xffffe0) << 8);
 864               Offset = (Offset << (6 - 5)) | ((*(UINT32 *)Targ & 0x60000000) >> (29 - 12));
 865
 866               //
 867               // ADRP offset is relative to the previous page boundary,
 868               // whereas ADR offset is relative to the instruction itself.
 869               // So fix up the offset so it points to the page containing
 870               // the symbol.
 871               //
 872               Offset -= (UINTN)(Targ - mCoffFile) & 0xfff;
 873
 874               if (Offset < -0x100000 || Offset > 0xfffff) {
 875                 Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s  due to its size (> 1 MB), this module requires 4 KB section alignment.",
 876                   mInImageName);
 877                 break;
 878               }
 879
 880               // Re-encode the offset as an ADR instruction
 881               *(UINT32 *)Targ &= 0x1000001f;
 882               *(UINT32 *)Targ |= ((Offset & 0x1ffffc) << (5 - 2)) | ((Offset & 0x3) << 29);
 883             }
 884             /* fall through */
 885
 886           case R_AARCH64_ADD_ABS_LO12_NC:
 887           case R_AARCH64_LDST8_ABS_LO12_NC:
 888           case R_AARCH64_LDST16_ABS_LO12_NC:
 889           case R_AARCH64_LDST32_ABS_LO12_NC:
 890           case R_AARCH64_LDST64_ABS_LO12_NC:
 891           case R_AARCH64_LDST128_ABS_LO12_NC:
 892             if (((SecShdr->sh_addr ^ SecOffset) & 0xfff) != 0 ||
 893                 ((SymShdr->sh_addr ^ mCoffSectionsOffset[Sym->st_shndx]) & 0xfff) != 0) {
 894               Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 small code model requires identical ELF and PE/COFF section offsets modulo 4 KB.",
 895                 mInImageName);
 896               break;
 897             }
 898             /* fall through */
 899
 900           case R_AARCH64_ADR_PREL_LO21:
 901           case R_AARCH64_CONDBR19:
 902           case R_AARCH64_LD_PREL_LO19:
 903           case R_AARCH64_CALL26:
 904           case R_AARCH64_JUMP26:
 905           case R_AARCH64_PREL64:
 906           case R_AARCH64_PREL32:
 907           case R_AARCH64_PREL16:
 908             //
 909             // The GCC toolchains (i.e., binutils) may corrupt section relative
 910             // relocations when emitting relocation sections into fully linked
 911             // binaries. More specifically, they tend to fail to take into
 912             // account the fact that a '.rodata + XXX' relocation needs to have
 913             // its addend recalculated once .rodata is merged into the .text
 914             // section, and the relocation emitted into the .rela.text section.
 915             //
 916             // We cannot really recover from this loss of information, so the
 917             // only workaround is to prevent having to recalculate any relative
 918             // relocations at all, by using a linker script that ensures that
 919             // the offset between the Place and the Symbol is the same in both
 920             // the ELF and the PE/COFF versions of the binary.
 921             //
 922             if ((SymShdr->sh_addr - SecShdr->sh_addr) !=
 923                 (mCoffSectionsOffset[Sym->st_shndx] - SecOffset)) {
 924               Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 relative relocations require identical ELF and PE/COFF section offsets",
 925                 mInImageName);
 926             }
 927             break;
 928
 929           // Absolute relocations.
 930           case R_AARCH64_ABS64:
 931             *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
 932             break;
 933
 934           default:
 935             Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 936           }
 937         } else {
 938           Error (NULL, 0, 3000, "Invalid", "Not a supported machine type");
 939         }
 940       }
 941     }
 942   }
 943
 944   return TRUE;
 945 }
 946
 947 STATIC
 948 VOID
 949 WriteRelocations64 (
 950   VOID
 951   )
 952 {
 953   UINT32                           Index;
 954   EFI_IMAGE_OPTIONAL_HEADER_UNION  *NtHdr;
 955   EFI_IMAGE_DATA_DIRECTORY         *Dir;
 956
 957   for (Index = 0; Index < mEhdr->e_shnum; Index++) {
 958     Elf_Shdr *RelShdr = GetShdrByIndex(Index);
 959     if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {
 960       Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);
 961       if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {
 962         UINT64 RelIdx;
 963
 964         for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {
 965           Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
 966
 967           if (mEhdr->e_machine == EM_X86_64) {
 968             switch (ELF_R_TYPE(Rel->r_info)) {
 969             case R_X86_64_NONE:
 970             case R_X86_64_PC32:
 971             case R_X86_64_PLT32:
 972               break;
 973             case R_X86_64_64:
 974               VerboseMsg ("EFI_IMAGE_REL_BASED_DIR64 Offset: 0x%08X",
 975                 mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
 976               CoffAddFixup(
 977                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
 978                 + (Rel->r_offset - SecShdr->sh_addr)),
 979                 EFI_IMAGE_REL_BASED_DIR64);
 980               break;
 981             case R_X86_64_32S:
 982             case R_X86_64_32:
 983               VerboseMsg ("EFI_IMAGE_REL_BASED_HIGHLOW Offset: 0x%08X",
 984                 mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
 985               CoffAddFixup(
 986                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
 987                 + (Rel->r_offset - SecShdr->sh_addr)),
 988                 EFI_IMAGE_REL_BASED_HIGHLOW);
 989               break;
 990             default:
 991               Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 992             }
 993           } else if (mEhdr->e_machine == EM_AARCH64) {
 994
 995             switch (ELF_R_TYPE(Rel->r_info)) {
 996             case R_AARCH64_ADR_PREL_LO21:
 997             case R_AARCH64_CONDBR19:
 998             case R_AARCH64_LD_PREL_LO19:
 999             case R_AARCH64_CALL26:
1000             case R_AARCH64_JUMP26:
1001             case R_AARCH64_PREL64:
1002             case R_AARCH64_PREL32:
1003             case R_AARCH64_PREL16:
1004             case R_AARCH64_ADR_PREL_PG_HI21:
1005             case R_AARCH64_ADD_ABS_LO12_NC:
1006             case R_AARCH64_LDST8_ABS_LO12_NC:
1007             case R_AARCH64_LDST16_ABS_LO12_NC:
1008             case R_AARCH64_LDST32_ABS_LO12_NC:
1009             case R_AARCH64_LDST64_ABS_LO12_NC:
1010             case R_AARCH64_LDST128_ABS_LO12_NC:
1011               //
1012               // No fixups are required for relative relocations, provided that
1013               // the relative offsets between sections have been preserved in
1014               // the ELF to PE/COFF conversion. We have already asserted that
1015               // this is the case in WriteSections64 ().
1016               //
1017               break;
1018
1019             case R_AARCH64_ABS64:
1020               CoffAddFixup(
1021                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
1022                 + (Rel->r_offset - SecShdr->sh_addr)),
1023                 EFI_IMAGE_REL_BASED_DIR64);
1024               break;
1025
1026             case R_AARCH64_ABS32:
1027               CoffAddFixup(
1028                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
1029                 + (Rel->r_offset - SecShdr->sh_addr)),
1030                 EFI_IMAGE_REL_BASED_HIGHLOW);
1031              break;
1032
1033             default:
1034                 Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
1035             }
1036           } else {
1037             Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);
1038           }
1039         }
1040       }
1041     }
1042   }
1043
1044   //
1045   // Pad by adding empty entries.
1046   //
1047   while (mCoffOffset & (mCoffAlignment - 1)) {
1048     CoffAddFixupEntry(0);
1049   }
1050
1051   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1052   Dir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
1053   Dir->Size = mCoffOffset - mRelocOffset;
1054   if (Dir->Size == 0) {
1055     // If no relocations, null out the directory entry and don't add the .reloc section
1056     Dir->VirtualAddress = 0;
1057     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
1058   } else {
1059     Dir->VirtualAddress = mRelocOffset;
1060     CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,
1061             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
1062             | EFI_IMAGE_SCN_MEM_DISCARDABLE
1063             | EFI_IMAGE_SCN_MEM_READ);
1064   }
1065 }
1066
1067 STATIC
1068 VOID
1069 WriteDebug64 (
1070   VOID
1071   )
1072 {
1073   UINT32                              Len;
1074   EFI_IMAGE_OPTIONAL_HEADER_UNION     *NtHdr;
1075   EFI_IMAGE_DATA_DIRECTORY            *DataDir;
1076   EFI_IMAGE_DEBUG_DIRECTORY_ENTRY     *Dir;
1077   EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;
1078
1079   Len = strlen(mInImageName) + 1;
1080
1081   Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + mDebugOffset);
1082   Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;
1083   Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;
1084   Dir->RVA = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1085   Dir->FileOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1086
1087   Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);
1088   Nb10->Signature = CODEVIEW_SIGNATURE_NB10;
1089   strcpy ((char *)(Nb10 + 1), mInImageName);
1090
1091
1092   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1093   DataDir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];
1094   DataDir->VirtualAddress = mDebugOffset;
1095   DataDir->Size = Dir->SizeOfData + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1096 }
1097
1098 STATIC
1099 VOID
1100 SetImageSize64 (
1101   VOID
1102   )
1103 {
1104   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
1105
1106   //
1107   // Set image size
1108   //
1109   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1110   NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = mCoffOffset;
1111 }
1112
1113 STATIC
1114 VOID
1115 CleanUp64 (
1116   VOID
1117   )
1118 {
1119   if (mCoffSectionsOffset != NULL) {
1120     free (mCoffSectionsOffset);
1121   }
1122 }
1123
1124