BaseTools/Source/C/GenFw/Elf64Convert.c

   1 /** @file
   2 Elf64 convert solution
   3
   4 Copyright (c) 2010 - 2017, 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 <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <time.h>
  28 #include <ctype.h>
  29
  30 #include <Common/UefiBaseTypes.h>
  31 #include <IndustryStandard/PeImage.h>
  32
  33 #include "PeCoffLib.h"
  34 #include "EfiUtilityMsgs.h"
  35
  36 #include "GenFw.h"
  37 #include "ElfConvert.h"
  38 #include "Elf64Convert.h"
  39
  40 STATIC
  41 VOID
  42 ScanSections64 (
  43   VOID
  44   );
  45
  46 STATIC
  47 BOOLEAN
  48 WriteSections64 (
  49   SECTION_FILTER_TYPES  FilterType
  50   );
  51
  52 STATIC
  53 VOID
  54 WriteRelocations64 (
  55   VOID
  56   );
  57
  58 STATIC
  59 VOID
  60 WriteDebug64 (
  61   VOID
  62   );
  63
  64 STATIC
  65 VOID
  66 SetImageSize64 (
  67   VOID
  68   );
  69
  70 STATIC
  71 VOID
  72 CleanUp64 (
  73   VOID
  74   );
  75
  76 //
  77 // Rename ELF32 strucutres to common names to help when porting to ELF64.
  78 //
  79 typedef Elf64_Shdr Elf_Shdr;
  80 typedef Elf64_Ehdr Elf_Ehdr;
  81 typedef Elf64_Rel Elf_Rel;
  82 typedef Elf64_Rela Elf_Rela;
  83 typedef Elf64_Sym Elf_Sym;
  84 typedef Elf64_Phdr Elf_Phdr;
  85 typedef Elf64_Dyn Elf_Dyn;
  86 #define ELFCLASS ELFCLASS64
  87 #define ELF_R_TYPE(r) ELF64_R_TYPE(r)
  88 #define ELF_R_SYM(r) ELF64_R_SYM(r)
  89
  90 //
  91 // Well known ELF structures.
  92 //
  93 STATIC Elf_Ehdr *mEhdr;
  94 STATIC Elf_Shdr *mShdrBase;
  95 STATIC Elf_Phdr *mPhdrBase;
  96
  97 //
  98 // Coff information
  99 //
 100 STATIC UINT32 mCoffAlignment = 0x20;
 101
 102 //
 103 // PE section alignment.
 104 //
 105 STATIC const UINT16 mCoffNbrSections = 4;
 106
 107 //
 108 // ELF sections to offset in Coff file.
 109 //
 110 STATIC UINT32 *mCoffSectionsOffset = NULL;
 111
 112 //
 113 // Offsets in COFF file
 114 //
 115 STATIC UINT32 mNtHdrOffset;
 116 STATIC UINT32 mTextOffset;
 117 STATIC UINT32 mDataOffset;
 118 STATIC UINT32 mHiiRsrcOffset;
 119 STATIC UINT32 mRelocOffset;
 120 STATIC UINT32 mDebugOffset;
 121
 122 //
 123 // Initialization Function
 124 //
 125 BOOLEAN
 126 InitializeElf64 (
 127   UINT8               *FileBuffer,
 128   ELF_FUNCTION_TABLE  *ElfFunctions
 129   )
 130 {
 131   //
 132   // Initialize data pointer and structures.
 133   //
 134   VerboseMsg ("Set EHDR");
 135   mEhdr = (Elf_Ehdr*) FileBuffer;
 136
 137   //
 138   // Check the ELF64 specific header information.
 139   //
 140   VerboseMsg ("Check ELF64 Header Information");
 141   if (mEhdr->e_ident[EI_CLASS] != ELFCLASS64) {
 142     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS64");
 143     return FALSE;
 144   }
 145   if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {
 146     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");
 147     return FALSE;
 148   }
 149   if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {
 150     Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");
 151     return FALSE;
 152   }
 153   if (!((mEhdr->e_machine == EM_X86_64) || (mEhdr->e_machine == EM_AARCH64))) {
 154     Error (NULL, 0, 3000, "Unsupported", "ELF e_machine not EM_X86_64 or EM_AARCH64");
 155     return FALSE;
 156   }
 157   if (mEhdr->e_version != EV_CURRENT) {
 158     Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);
 159     return FALSE;
 160   }
 161
 162   //
 163   // Update section header pointers
 164   //
 165   VerboseMsg ("Update Header Pointers");
 166   mShdrBase  = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);
 167   mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);
 168
 169   //
 170   // Create COFF Section offset buffer and zero.
 171   //
 172   VerboseMsg ("Create COFF Section Offset Buffer");
 173   mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));
 174   if (mCoffSectionsOffset == NULL) {
 175     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 176     return FALSE;
 177   }
 178   memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));
 179
 180   //
 181   // Fill in function pointers.
 182   //
 183   VerboseMsg ("Fill in Function Pointers");
 184   ElfFunctions->ScanSections = ScanSections64;
 185   ElfFunctions->WriteSections = WriteSections64;
 186   ElfFunctions->WriteRelocations = WriteRelocations64;
 187   ElfFunctions->WriteDebug = WriteDebug64;
 188   ElfFunctions->SetImageSize = SetImageSize64;
 189   ElfFunctions->CleanUp = CleanUp64;
 190
 191   return TRUE;
 192 }
 193
 194
 195 //
 196 // Header by Index functions
 197 //
 198 STATIC
 199 Elf_Shdr*
 200 GetShdrByIndex (
 201   UINT32 Num
 202   )
 203 {
 204   if (Num >= mEhdr->e_shnum) {
 205     Error (NULL, 0, 3000, "Invalid", "GetShdrByIndex: Index %u is too high.", Num);
 206     exit(EXIT_FAILURE);
 207   }
 208
 209   return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);
 210 }
 211
 212 STATIC
 213 UINT32
 214 CoffAlign (
 215   UINT32 Offset
 216   )
 217 {
 218   return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);
 219 }
 220
 221 STATIC
 222 UINT32
 223 DebugRvaAlign (
 224   UINT32 Offset
 225   )
 226 {
 227   return (Offset + 3) & ~3;
 228 }
 229
 230 //
 231 // filter functions
 232 //
 233 STATIC
 234 BOOLEAN
 235 IsTextShdr (
 236   Elf_Shdr *Shdr
 237   )
 238 {
 239   return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
 240 }
 241
 242 STATIC
 243 BOOLEAN
 244 IsHiiRsrcShdr (
 245   Elf_Shdr *Shdr
 246   )
 247 {
 248   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 249
 250   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);
 251 }
 252
 253 STATIC
 254 BOOLEAN
 255 IsDataShdr (
 256   Elf_Shdr *Shdr
 257   )
 258 {
 259   if (IsHiiRsrcShdr(Shdr)) {
 260     return FALSE;
 261   }
 262   return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
 263 }
 264
 265 STATIC
 266 BOOLEAN
 267 IsStrtabShdr (
 268   Elf_Shdr *Shdr
 269   )
 270 {
 271   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 272
 273   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_STRTAB_SECTION_NAME) == 0);
 274 }
 275
 276 STATIC
 277 Elf_Shdr *
 278 FindStrtabShdr (
 279   VOID
 280   )
 281 {
 282   UINT32 i;
 283   for (i = 0; i < mEhdr->e_shnum; i++) {
 284     Elf_Shdr *shdr = GetShdrByIndex(i);
 285     if (IsStrtabShdr(shdr)) {
 286       return shdr;
 287     }
 288   }
 289   return NULL;
 290 }
 291
 292 STATIC
 293 const UINT8 *
 294 GetSymName (
 295   Elf_Sym *Sym
 296   )
 297 {
 298   Elf_Shdr *StrtabShdr;
 299   UINT8    *StrtabContents;
 300   BOOLEAN  foundEnd;
 301   UINT32   i;
 302
 303   if (Sym->st_name == 0) {
 304     return NULL;
 305   }
 306
 307   StrtabShdr = FindStrtabShdr();
 308   if (StrtabShdr == NULL) {
 309     return NULL;
 310   }
 311
 312   assert(Sym->st_name < StrtabShdr->sh_size);
 313
 314   StrtabContents = (UINT8*)mEhdr + StrtabShdr->sh_offset;
 315
 316   foundEnd = FALSE;
 317   for (i= Sym->st_name; (i < StrtabShdr->sh_size) && !foundEnd; i++) {
 318     foundEnd = (BOOLEAN)(StrtabContents[i] == 0);
 319   }
 320   assert(foundEnd);
 321
 322   return StrtabContents + Sym->st_name;
 323 }
 324
 325 //
 326 // Elf functions interface implementation
 327 //
 328
 329 STATIC
 330 VOID
 331 ScanSections64 (
 332   VOID
 333   )
 334 {
 335   UINT32                          i;
 336   EFI_IMAGE_DOS_HEADER            *DosHdr;
 337   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
 338   UINT32                          CoffEntry;
 339   UINT32                          SectionCount;
 340   BOOLEAN                         FoundSection;
 341
 342   CoffEntry = 0;
 343   mCoffOffset = 0;
 344
 345   //
 346   // Coff file start with a DOS header.
 347   //
 348   mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;
 349   mNtHdrOffset = mCoffOffset;
 350   switch (mEhdr->e_machine) {
 351   case EM_X86_64:
 352   case EM_IA_64:
 353   case EM_AARCH64:
 354     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
 355   break;
 356   default:
 357     VerboseMsg ("%s unknown e_machine type %hu. Assume X64", mInImageName, mEhdr->e_machine);
 358     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS64);
 359   break;
 360   }
 361
 362   mTableOffset = mCoffOffset;
 363   mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);
 364
 365   //
 366   // Set mCoffAlignment to the maximum alignment of the input sections
 367   // we care about
 368   //
 369   for (i = 0; i < mEhdr->e_shnum; i++) {
 370     Elf_Shdr *shdr = GetShdrByIndex(i);
 371     if (shdr->sh_addralign <= mCoffAlignment) {
 372       continue;
 373     }
 374     if (IsTextShdr(shdr) || IsDataShdr(shdr) || IsHiiRsrcShdr(shdr)) {
 375       mCoffAlignment = (UINT32)shdr->sh_addralign;
 376     }
 377   }
 378
 379   //
 380   // Move the PE/COFF header right before the first section. This will help us
 381   // save space when converting to TE.
 382   //
 383   if (mCoffAlignment > mCoffOffset) {
 384     mNtHdrOffset += mCoffAlignment - mCoffOffset;
 385     mTableOffset += mCoffAlignment - mCoffOffset;
 386     mCoffOffset = mCoffAlignment;
 387   }
 388
 389   //
 390   // First text sections.
 391   //
 392   mCoffOffset = CoffAlign(mCoffOffset);
 393   mTextOffset = mCoffOffset;
 394   FoundSection = FALSE;
 395   SectionCount = 0;
 396   for (i = 0; i < mEhdr->e_shnum; i++) {
 397     Elf_Shdr *shdr = GetShdrByIndex(i);
 398     if (IsTextShdr(shdr)) {
 399       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 400         // the alignment field is valid
 401         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 402           // if the section address is aligned we must align PE/COFF
 403           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 404         } else {
 405           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 406         }
 407       }
 408
 409       /* Relocate entry.  */
 410       if ((mEhdr->e_entry >= shdr->sh_addr) &&
 411           (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {
 412         CoffEntry = (UINT32) (mCoffOffset + mEhdr->e_entry - shdr->sh_addr);
 413       }
 414
 415       //
 416       // Set mTextOffset with the offset of the first '.text' section
 417       //
 418       if (!FoundSection) {
 419         mTextOffset = mCoffOffset;
 420         FoundSection = TRUE;
 421       }
 422
 423       mCoffSectionsOffset[i] = mCoffOffset;
 424       mCoffOffset += (UINT32) shdr->sh_size;
 425       SectionCount ++;
 426     }
 427   }
 428
 429   if (!FoundSection) {
 430     Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");
 431     assert (FALSE);
 432   }
 433
 434   mDebugOffset = DebugRvaAlign(mCoffOffset);
 435   mCoffOffset = CoffAlign(mCoffOffset);
 436
 437   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 438     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);
 439   }
 440
 441   //
 442   //  Then data sections.
 443   //
 444   mDataOffset = mCoffOffset;
 445   FoundSection = FALSE;
 446   SectionCount = 0;
 447   for (i = 0; i < mEhdr->e_shnum; i++) {
 448     Elf_Shdr *shdr = GetShdrByIndex(i);
 449     if (IsDataShdr(shdr)) {
 450       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 451         // the alignment field is valid
 452         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 453           // if the section address is aligned we must align PE/COFF
 454           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 455         } else {
 456           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 457         }
 458       }
 459
 460       //
 461       // Set mDataOffset with the offset of the first '.data' section
 462       //
 463       if (!FoundSection) {
 464         mDataOffset = mCoffOffset;
 465         FoundSection = TRUE;
 466       }
 467       mCoffSectionsOffset[i] = mCoffOffset;
 468       mCoffOffset += (UINT32) shdr->sh_size;
 469       SectionCount ++;
 470     }
 471   }
 472
 473   //
 474   // Make room for .debug data in .data (or .text if .data is empty) instead of
 475   // putting it in a section of its own. This is explicitly allowed by the
 476   // PE/COFF spec, and prevents bloat in the binary when using large values for
 477   // section alignment.
 478   //
 479   if (SectionCount > 0) {
 480     mDebugOffset = DebugRvaAlign(mCoffOffset);
 481   }
 482   mCoffOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY) +
 483                 sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) +
 484                 strlen(mInImageName) + 1;
 485
 486   mCoffOffset = CoffAlign(mCoffOffset);
 487   if (SectionCount == 0) {
 488     mDataOffset = mCoffOffset;
 489   }
 490
 491   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 492     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);
 493   }
 494
 495   //
 496   //  The HII resource sections.
 497   //
 498   mHiiRsrcOffset = mCoffOffset;
 499   for (i = 0; i < mEhdr->e_shnum; i++) {
 500     Elf_Shdr *shdr = GetShdrByIndex(i);
 501     if (IsHiiRsrcShdr(shdr)) {
 502       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 503         // the alignment field is valid
 504         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 505           // if the section address is aligned we must align PE/COFF
 506           mCoffOffset = (UINT32) ((mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1));
 507         } else {
 508           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 509         }
 510       }
 511       if (shdr->sh_size != 0) {
 512         mHiiRsrcOffset = mCoffOffset;
 513         mCoffSectionsOffset[i] = mCoffOffset;
 514         mCoffOffset += (UINT32) shdr->sh_size;
 515         mCoffOffset = CoffAlign(mCoffOffset);
 516         SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);
 517       }
 518       break;
 519     }
 520   }
 521
 522   mRelocOffset = mCoffOffset;
 523
 524   //
 525   // Allocate base Coff file.  Will be expanded later for relocations.
 526   //
 527   mCoffFile = (UINT8 *)malloc(mCoffOffset);
 528   if (mCoffFile == NULL) {
 529     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 530   }
 531   assert (mCoffFile != NULL);
 532   memset(mCoffFile, 0, mCoffOffset);
 533
 534   //
 535   // Fill headers.
 536   //
 537   DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;
 538   DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;
 539   DosHdr->e_lfanew = mNtHdrOffset;
 540
 541   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);
 542
 543   NtHdr->Pe32Plus.Signature = EFI_IMAGE_NT_SIGNATURE;
 544
 545   switch (mEhdr->e_machine) {
 546   case EM_X86_64:
 547     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;
 548     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 549     break;
 550   case EM_IA_64:
 551     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_IPF;
 552     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 553     break;
 554   case EM_AARCH64:
 555     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_AARCH64;
 556     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 557     break;
 558   default:
 559     VerboseMsg ("%s unknown e_machine type. Assume X64", (UINTN)mEhdr->e_machine);
 560     NtHdr->Pe32Plus.FileHeader.Machine = EFI_IMAGE_MACHINE_X64;
 561     NtHdr->Pe32Plus.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
 562   }
 563
 564   NtHdr->Pe32Plus.FileHeader.NumberOfSections = mCoffNbrSections;
 565   NtHdr->Pe32Plus.FileHeader.TimeDateStamp = (UINT32) time(NULL);
 566   mImageTimeStamp = NtHdr->Pe32Plus.FileHeader.TimeDateStamp;
 567   NtHdr->Pe32Plus.FileHeader.PointerToSymbolTable = 0;
 568   NtHdr->Pe32Plus.FileHeader.NumberOfSymbols = 0;
 569   NtHdr->Pe32Plus.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32Plus.OptionalHeader);
 570   NtHdr->Pe32Plus.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE
 571     | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED
 572     | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED
 573     | EFI_IMAGE_FILE_LARGE_ADDRESS_AWARE;
 574
 575   NtHdr->Pe32Plus.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;
 576   NtHdr->Pe32Plus.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;
 577   NtHdr->Pe32Plus.OptionalHeader.SizeOfUninitializedData = 0;
 578   NtHdr->Pe32Plus.OptionalHeader.AddressOfEntryPoint = CoffEntry;
 579
 580   NtHdr->Pe32Plus.OptionalHeader.BaseOfCode = mTextOffset;
 581
 582   NtHdr->Pe32Plus.OptionalHeader.ImageBase = 0;
 583   NtHdr->Pe32Plus.OptionalHeader.SectionAlignment = mCoffAlignment;
 584   NtHdr->Pe32Plus.OptionalHeader.FileAlignment = mCoffAlignment;
 585   NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = 0;
 586
 587   NtHdr->Pe32Plus.OptionalHeader.SizeOfHeaders = mTextOffset;
 588   NtHdr->Pe32Plus.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;
 589
 590   //
 591   // Section headers.
 592   //
 593   if ((mDataOffset - mTextOffset) > 0) {
 594     CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,
 595             EFI_IMAGE_SCN_CNT_CODE
 596             | EFI_IMAGE_SCN_MEM_EXECUTE
 597             | EFI_IMAGE_SCN_MEM_READ);
 598   } else {
 599     // Don't make a section of size 0.
 600     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 601   }
 602
 603   if ((mHiiRsrcOffset - mDataOffset) > 0) {
 604     CreateSectionHeader (".data", mDataOffset, mHiiRsrcOffset - mDataOffset,
 605             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 606             | EFI_IMAGE_SCN_MEM_WRITE
 607             | EFI_IMAGE_SCN_MEM_READ);
 608   } else {
 609     // Don't make a section of size 0.
 610     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 611   }
 612
 613   if ((mRelocOffset - mHiiRsrcOffset) > 0) {
 614     CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,
 615             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 616             | EFI_IMAGE_SCN_MEM_READ);
 617
 618     NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;
 619     NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;
 620   } else {
 621     // Don't make a section of size 0.
 622     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
 623   }
 624
 625 }
 626
 627 STATIC
 628 BOOLEAN
 629 WriteSections64 (
 630   SECTION_FILTER_TYPES  FilterType
 631   )
 632 {
 633   UINT32      Idx;
 634   Elf_Shdr    *SecShdr;
 635   UINT32      SecOffset;
 636   BOOLEAN     (*Filter)(Elf_Shdr *);
 637
 638   //
 639   // Initialize filter pointer
 640   //
 641   switch (FilterType) {
 642     case SECTION_TEXT:
 643       Filter = IsTextShdr;
 644       break;
 645     case SECTION_HII:
 646       Filter = IsHiiRsrcShdr;
 647       break;
 648     case SECTION_DATA:
 649       Filter = IsDataShdr;
 650       break;
 651     default:
 652       return FALSE;
 653   }
 654
 655   //
 656   // First: copy sections.
 657   //
 658   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 659     Elf_Shdr *Shdr = GetShdrByIndex(Idx);
 660     if ((*Filter)(Shdr)) {
 661       switch (Shdr->sh_type) {
 662       case SHT_PROGBITS:
 663         /* Copy.  */
 664         memcpy(mCoffFile + mCoffSectionsOffset[Idx],
 665               (UINT8*)mEhdr + Shdr->sh_offset,
 666               (size_t) Shdr->sh_size);
 667         break;
 668
 669       case SHT_NOBITS:
 670         memset(mCoffFile + mCoffSectionsOffset[Idx], 0, (size_t) Shdr->sh_size);
 671         break;
 672
 673       default:
 674         //
 675         //  Ignore for unkown section type.
 676         //
 677         VerboseMsg ("%s unknown section type %x. We directly copy this section into Coff file", mInImageName, (unsigned)Shdr->sh_type);
 678         break;
 679       }
 680     }
 681   }
 682
 683   //
 684   // Second: apply relocations.
 685   //
 686   VerboseMsg ("Applying Relocations...");
 687   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 688     //
 689     // Determine if this is a relocation section.
 690     //
 691     Elf_Shdr *RelShdr = GetShdrByIndex(Idx);
 692     if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {
 693       continue;
 694     }
 695
 696     //
 697     // If this is a ET_DYN (PIE) executable, we will encounter a dynamic SHT_RELA
 698     // section that applies to the entire binary, and which will have its section
 699     // index set to #0 (which is a NULL section with the SHF_ALLOC bit cleared).
 700     //
 701     // In the absence of GOT based relocations (which we currently don't support),
 702     // this RELA section will contain redundant R_xxx_RELATIVE relocations, one
 703     // for every R_xxx_xx64 relocation appearing in the per-section RELA sections.
 704     // (i.e., .rela.text and .rela.data)
 705     //
 706     if (RelShdr->sh_info == 0) {
 707       continue;
 708     }
 709
 710     //
 711     // Relocation section found.  Now extract section information that the relocations
 712     // apply to in the ELF data and the new COFF data.
 713     //
 714     SecShdr = GetShdrByIndex(RelShdr->sh_info);
 715     SecOffset = mCoffSectionsOffset[RelShdr->sh_info];
 716
 717     //
 718     // Only process relocations for the current filter type.
 719     //
 720     if (RelShdr->sh_type == SHT_RELA && (*Filter)(SecShdr)) {
 721       UINT64 RelIdx;
 722
 723       //
 724       // Determine the symbol table referenced by the relocation data.
 725       //
 726       Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);
 727       UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;
 728
 729       //
 730       // Process all relocation entries for this section.
 731       //
 732       for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += (UINT32) RelShdr->sh_entsize) {
 733
 734         //
 735         // Set pointer to relocation entry
 736         //
 737         Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
 738
 739         //
 740         // Set pointer to symbol table entry associated with the relocation entry.
 741         //
 742         Elf_Sym  *Sym = (Elf_Sym *)(Symtab + ELF_R_SYM(Rel->r_info) * SymtabShdr->sh_entsize);
 743
 744         Elf_Shdr *SymShdr;
 745         UINT8    *Targ;
 746
 747         //
 748         // Check section header index found in symbol table and get the section
 749         // header location.
 750         //
 751         if (Sym->st_shndx == SHN_UNDEF
 752             || Sym->st_shndx >= mEhdr->e_shnum) {
 753           const UINT8 *SymName = GetSymName(Sym);
 754           if (SymName == NULL) {
 755             SymName = (const UINT8 *)"<unknown>";
 756           }
 757
 758           Error (NULL, 0, 3000, "Invalid",
 759                  "%s: Bad definition for symbol '%s'@%#llx or unsupported symbol type.  "
 760                  "For example, absolute and undefined symbols are not supported.",
 761                  mInImageName, SymName, Sym->st_value);
 762
 763           exit(EXIT_FAILURE);
 764         }
 765         SymShdr = GetShdrByIndex(Sym->st_shndx);
 766
 767         //
 768         // Convert the relocation data to a pointer into the coff file.
 769         //
 770         // Note:
 771         //   r_offset is the virtual address of the storage unit to be relocated.
 772         //   sh_addr is the virtual address for the base of the section.
 773         //
 774         //   r_offset in a memory address.
 775         //   Convert it to a pointer in the coff file.
 776         //
 777         Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);
 778
 779         //
 780         // Determine how to handle each relocation type based on the machine type.
 781         //
 782         if (mEhdr->e_machine == EM_X86_64) {
 783           switch (ELF_R_TYPE(Rel->r_info)) {
 784           case R_X86_64_NONE:
 785             break;
 786           case R_X86_64_64:
 787             //
 788             // Absolute relocation.
 789             //
 790             VerboseMsg ("R_X86_64_64");
 791             VerboseMsg ("Offset: 0x%08X, Addend: 0x%016LX",
 792               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 793               *(UINT64 *)Targ);
 794             *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
 795             VerboseMsg ("Relocation:  0x%016LX", *(UINT64*)Targ);
 796             break;
 797           case R_X86_64_32:
 798             VerboseMsg ("R_X86_64_32");
 799             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 800               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 801               *(UINT32 *)Targ);
 802             *(UINT32 *)Targ = (UINT32)((UINT64)(*(UINT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
 803             VerboseMsg ("Relocation:  0x%08X", *(UINT32*)Targ);
 804             break;
 805           case R_X86_64_32S:
 806             VerboseMsg ("R_X86_64_32S");
 807             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 808               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 809               *(UINT32 *)Targ);
 810             *(INT32 *)Targ = (INT32)((INT64)(*(INT32 *)Targ) - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
 811             VerboseMsg ("Relocation:  0x%08X", *(UINT32*)Targ);
 812             break;
 813
 814           case R_X86_64_PLT32:
 815             //
 816             // Treat R_X86_64_PLT32 relocations as R_X86_64_PC32: this is
 817             // possible since we know all code symbol references resolve to
 818             // definitions in the same module (UEFI has no shared libraries),
 819             // and so there is never a reason to jump via a PLT entry,
 820             // allowing us to resolve the reference using the symbol directly.
 821             //
 822             VerboseMsg ("Treating R_X86_64_PLT32 as R_X86_64_PC32 ...");
 823             /* fall through */
 824           case R_X86_64_PC32:
 825             //
 826             // Relative relocation: Symbol - Ip + Addend
 827             //
 828             VerboseMsg ("R_X86_64_PC32");
 829             VerboseMsg ("Offset: 0x%08X, Addend: 0x%08X",
 830               (UINT32)(SecOffset + (Rel->r_offset - SecShdr->sh_addr)),
 831               *(UINT32 *)Targ);
 832             *(UINT32 *)Targ = (UINT32) (*(UINT32 *)Targ
 833               + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)
 834               - (SecOffset - SecShdr->sh_addr));
 835             VerboseMsg ("Relocation:  0x%08X", *(UINT32 *)Targ);
 836             break;
 837           default:
 838             Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 839           }
 840         } else if (mEhdr->e_machine == EM_AARCH64) {
 841
 842           switch (ELF_R_TYPE(Rel->r_info)) {
 843
 844           case R_AARCH64_ADR_PREL_PG_HI21:
 845             //
 846             // AArch64 PG_H21 relocations are typically paired with ABS_LO12
 847             // relocations, where a PC-relative reference with +/- 4 GB range is
 848             // split into a relative high part and an absolute low part. Since
 849             // the absolute low part represents the offset into a 4 KB page, we
 850             // either have to convert the ADRP into an ADR instruction, or we
 851             // need to use a section alignment of at least 4 KB, so that the
 852             // binary appears at a correct offset at runtime. In any case, we
 853             // have to make sure that the 4 KB relative offsets of both the
 854             // section containing the reference as well as the section to which
 855             // it refers have not been changed during PE/COFF conversion (i.e.,
 856             // in ScanSections64() above).
 857             //
 858             if (mCoffAlignment < 0x1000) {
 859               //
 860               // Attempt to convert the ADRP into an ADR instruction.
 861               // This is only possible if the symbol is within +/- 1 MB.
 862               //
 863               INT64 Offset;
 864
 865               // Decode the ADRP instruction
 866               Offset = (INT32)((*(UINT32 *)Targ & 0xffffe0) << 8);
 867               Offset = (Offset << (6 - 5)) | ((*(UINT32 *)Targ & 0x60000000) >> (29 - 12));
 868
 869               //
 870               // ADRP offset is relative to the previous page boundary,
 871               // whereas ADR offset is relative to the instruction itself.
 872               // So fix up the offset so it points to the page containing
 873               // the symbol.
 874               //
 875               Offset -= (UINTN)(Targ - mCoffFile) & 0xfff;
 876
 877               if (Offset < -0x100000 || Offset > 0xfffff) {
 878                 Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s  due to its size (> 1 MB), this module requires 4 KB section alignment.",
 879                   mInImageName);
 880                 break;
 881               }
 882
 883               // Re-encode the offset as an ADR instruction
 884               *(UINT32 *)Targ &= 0x1000001f;
 885               *(UINT32 *)Targ |= ((Offset & 0x1ffffc) << (5 - 2)) | ((Offset & 0x3) << 29);
 886             }
 887             /* fall through */
 888
 889           case R_AARCH64_ADD_ABS_LO12_NC:
 890           case R_AARCH64_LDST8_ABS_LO12_NC:
 891           case R_AARCH64_LDST16_ABS_LO12_NC:
 892           case R_AARCH64_LDST32_ABS_LO12_NC:
 893           case R_AARCH64_LDST64_ABS_LO12_NC:
 894           case R_AARCH64_LDST128_ABS_LO12_NC:
 895             if (((SecShdr->sh_addr ^ SecOffset) & 0xfff) != 0 ||
 896                 ((SymShdr->sh_addr ^ mCoffSectionsOffset[Sym->st_shndx]) & 0xfff) != 0) {
 897               Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 small code model requires identical ELF and PE/COFF section offsets modulo 4 KB.",
 898                 mInImageName);
 899               break;
 900             }
 901             /* fall through */
 902
 903           case R_AARCH64_ADR_PREL_LO21:
 904           case R_AARCH64_CONDBR19:
 905           case R_AARCH64_LD_PREL_LO19:
 906           case R_AARCH64_CALL26:
 907           case R_AARCH64_JUMP26:
 908           case R_AARCH64_PREL64:
 909           case R_AARCH64_PREL32:
 910           case R_AARCH64_PREL16:
 911             //
 912             // The GCC toolchains (i.e., binutils) may corrupt section relative
 913             // relocations when emitting relocation sections into fully linked
 914             // binaries. More specifically, they tend to fail to take into
 915             // account the fact that a '.rodata + XXX' relocation needs to have
 916             // its addend recalculated once .rodata is merged into the .text
 917             // section, and the relocation emitted into the .rela.text section.
 918             //
 919             // We cannot really recover from this loss of information, so the
 920             // only workaround is to prevent having to recalculate any relative
 921             // relocations at all, by using a linker script that ensures that
 922             // the offset between the Place and the Symbol is the same in both
 923             // the ELF and the PE/COFF versions of the binary.
 924             //
 925             if ((SymShdr->sh_addr - SecShdr->sh_addr) !=
 926                 (mCoffSectionsOffset[Sym->st_shndx] - SecOffset)) {
 927               Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s AARCH64 relative relocations require identical ELF and PE/COFF section offsets",
 928                 mInImageName);
 929             }
 930             break;
 931
 932           // Absolute relocations.
 933           case R_AARCH64_ABS64:
 934             *(UINT64 *)Targ = *(UINT64 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
 935             break;
 936
 937           default:
 938             Error (NULL, 0, 3000, "Invalid", "WriteSections64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 939           }
 940         } else {
 941           Error (NULL, 0, 3000, "Invalid", "Not a supported machine type");
 942         }
 943       }
 944     }
 945   }
 946
 947   return TRUE;
 948 }
 949
 950 STATIC
 951 VOID
 952 WriteRelocations64 (
 953   VOID
 954   )
 955 {
 956   UINT32                           Index;
 957   EFI_IMAGE_OPTIONAL_HEADER_UNION  *NtHdr;
 958   EFI_IMAGE_DATA_DIRECTORY         *Dir;
 959
 960   for (Index = 0; Index < mEhdr->e_shnum; Index++) {
 961     Elf_Shdr *RelShdr = GetShdrByIndex(Index);
 962     if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {
 963       Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);
 964       if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {
 965         UINT64 RelIdx;
 966
 967         for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {
 968           Elf_Rela *Rel = (Elf_Rela *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
 969
 970           if (mEhdr->e_machine == EM_X86_64) {
 971             switch (ELF_R_TYPE(Rel->r_info)) {
 972             case R_X86_64_NONE:
 973             case R_X86_64_PC32:
 974             case R_X86_64_PLT32:
 975               break;
 976             case R_X86_64_64:
 977               VerboseMsg ("EFI_IMAGE_REL_BASED_DIR64 Offset: 0x%08X",
 978                 mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
 979               CoffAddFixup(
 980                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
 981                 + (Rel->r_offset - SecShdr->sh_addr)),
 982                 EFI_IMAGE_REL_BASED_DIR64);
 983               break;
 984             case R_X86_64_32S:
 985             case R_X86_64_32:
 986               VerboseMsg ("EFI_IMAGE_REL_BASED_HIGHLOW Offset: 0x%08X",
 987                 mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
 988               CoffAddFixup(
 989                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
 990                 + (Rel->r_offset - SecShdr->sh_addr)),
 991                 EFI_IMAGE_REL_BASED_HIGHLOW);
 992               break;
 993             default:
 994               Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_X86_64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 995             }
 996           } else if (mEhdr->e_machine == EM_AARCH64) {
 997
 998             switch (ELF_R_TYPE(Rel->r_info)) {
 999             case R_AARCH64_ADR_PREL_LO21:
1000             case R_AARCH64_CONDBR19:
1001             case R_AARCH64_LD_PREL_LO19:
1002             case R_AARCH64_CALL26:
1003             case R_AARCH64_JUMP26:
1004             case R_AARCH64_PREL64:
1005             case R_AARCH64_PREL32:
1006             case R_AARCH64_PREL16:
1007             case R_AARCH64_ADR_PREL_PG_HI21:
1008             case R_AARCH64_ADD_ABS_LO12_NC:
1009             case R_AARCH64_LDST8_ABS_LO12_NC:
1010             case R_AARCH64_LDST16_ABS_LO12_NC:
1011             case R_AARCH64_LDST32_ABS_LO12_NC:
1012             case R_AARCH64_LDST64_ABS_LO12_NC:
1013             case R_AARCH64_LDST128_ABS_LO12_NC:
1014               //
1015               // No fixups are required for relative relocations, provided that
1016               // the relative offsets between sections have been preserved in
1017               // the ELF to PE/COFF conversion. We have already asserted that
1018               // this is the case in WriteSections64 ().
1019               //
1020               break;
1021
1022             case R_AARCH64_ABS64:
1023               CoffAddFixup(
1024                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
1025                 + (Rel->r_offset - SecShdr->sh_addr)),
1026                 EFI_IMAGE_REL_BASED_DIR64);
1027               break;
1028
1029             case R_AARCH64_ABS32:
1030               CoffAddFixup(
1031                 (UINT32) ((UINT64) mCoffSectionsOffset[RelShdr->sh_info]
1032                 + (Rel->r_offset - SecShdr->sh_addr)),
1033                 EFI_IMAGE_REL_BASED_HIGHLOW);
1034              break;
1035
1036             default:
1037                 Error (NULL, 0, 3000, "Invalid", "WriteRelocations64(): %s unsupported ELF EM_AARCH64 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
1038             }
1039           } else {
1040             Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);
1041           }
1042         }
1043       }
1044     }
1045   }
1046
1047   //
1048   // Pad by adding empty entries.
1049   //
1050   while (mCoffOffset & (mCoffAlignment - 1)) {
1051     CoffAddFixupEntry(0);
1052   }
1053
1054   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1055   Dir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
1056   Dir->Size = mCoffOffset - mRelocOffset;
1057   if (Dir->Size == 0) {
1058     // If no relocations, null out the directory entry and don't add the .reloc section
1059     Dir->VirtualAddress = 0;
1060     NtHdr->Pe32Plus.FileHeader.NumberOfSections--;
1061   } else {
1062     Dir->VirtualAddress = mRelocOffset;
1063     CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,
1064             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
1065             | EFI_IMAGE_SCN_MEM_DISCARDABLE
1066             | EFI_IMAGE_SCN_MEM_READ);
1067   }
1068 }
1069
1070 STATIC
1071 VOID
1072 WriteDebug64 (
1073   VOID
1074   )
1075 {
1076   UINT32                              Len;
1077   EFI_IMAGE_OPTIONAL_HEADER_UNION     *NtHdr;
1078   EFI_IMAGE_DATA_DIRECTORY            *DataDir;
1079   EFI_IMAGE_DEBUG_DIRECTORY_ENTRY     *Dir;
1080   EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;
1081
1082   Len = strlen(mInImageName) + 1;
1083
1084   Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + mDebugOffset);
1085   Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;
1086   Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;
1087   Dir->RVA = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1088   Dir->FileOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1089
1090   Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);
1091   Nb10->Signature = CODEVIEW_SIGNATURE_NB10;
1092   strcpy ((char *)(Nb10 + 1), mInImageName);
1093
1094
1095   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1096   DataDir = &NtHdr->Pe32Plus.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];
1097   DataDir->VirtualAddress = mDebugOffset;
1098   DataDir->Size = sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1099 }
1100
1101 STATIC
1102 VOID
1103 SetImageSize64 (
1104   VOID
1105   )
1106 {
1107   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
1108
1109   //
1110   // Set image size
1111   //
1112   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1113   NtHdr->Pe32Plus.OptionalHeader.SizeOfImage = mCoffOffset;
1114 }
1115
1116 STATIC
1117 VOID
1118 CleanUp64 (
1119   VOID
1120   )
1121 {
1122   if (mCoffSectionsOffset != NULL) {
1123     free (mCoffSectionsOffset);
1124   }
1125 }
1126
1127