BaseTools/Source/C/GenFw/Elf32Convert.c

   1 /** @file
   2 Elf32 Convert solution
   3
   4 Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
   5 Portions copyright (c) 2013, 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 "Elf32Convert.h"
  39
  40 STATIC
  41 VOID
  42 ScanSections32 (
  43   VOID
  44   );
  45
  46 STATIC
  47 BOOLEAN
  48 WriteSections32 (
  49   SECTION_FILTER_TYPES  FilterType
  50   );
  51
  52 STATIC
  53 VOID
  54 WriteRelocations32 (
  55   VOID
  56   );
  57
  58 STATIC
  59 VOID
  60 WriteDebug32 (
  61   VOID
  62   );
  63
  64 STATIC
  65 VOID
  66 SetImageSize32 (
  67   VOID
  68   );
  69
  70 STATIC
  71 VOID
  72 CleanUp32 (
  73   VOID
  74   );
  75
  76 //
  77 // Rename ELF32 strucutres to common names to help when porting to ELF64.
  78 //
  79 typedef Elf32_Shdr Elf_Shdr;
  80 typedef Elf32_Ehdr Elf_Ehdr;
  81 typedef Elf32_Rel Elf_Rel;
  82 typedef Elf32_Sym Elf_Sym;
  83 typedef Elf32_Phdr Elf_Phdr;
  84 typedef Elf32_Dyn Elf_Dyn;
  85 #define ELFCLASS ELFCLASS32
  86 #define ELF_R_TYPE(r) ELF32_R_TYPE(r)
  87 #define ELF_R_SYM(r) ELF32_R_SYM(r)
  88
  89 //
  90 // Well known ELF structures.
  91 //
  92 STATIC Elf_Ehdr *mEhdr;
  93 STATIC Elf_Shdr *mShdrBase;
  94 STATIC Elf_Phdr *mPhdrBase;
  95
  96 //
  97 // Coff information
  98 //
  99 STATIC UINT32 mCoffAlignment = 0x20;
 100
 101 //
 102 // PE section alignment.
 103 //
 104 STATIC const UINT16 mCoffNbrSections = 4;
 105
 106 //
 107 // ELF sections to offset in Coff file.
 108 //
 109 STATIC UINT32 *mCoffSectionsOffset = NULL;
 110
 111 //
 112 // Offsets in COFF file
 113 //
 114 STATIC UINT32 mNtHdrOffset;
 115 STATIC UINT32 mTextOffset;
 116 STATIC UINT32 mDataOffset;
 117 STATIC UINT32 mHiiRsrcOffset;
 118 STATIC UINT32 mRelocOffset;
 119 STATIC UINT32 mDebugOffset;
 120
 121 //
 122 // Initialization Function
 123 //
 124 BOOLEAN
 125 InitializeElf32 (
 126   UINT8               *FileBuffer,
 127   ELF_FUNCTION_TABLE  *ElfFunctions
 128   )
 129 {
 130   //
 131   // Initialize data pointer and structures.
 132   //
 133   mEhdr = (Elf_Ehdr*) FileBuffer;
 134
 135   //
 136   // Check the ELF32 specific header information.
 137   //
 138   if (mEhdr->e_ident[EI_CLASS] != ELFCLASS32) {
 139     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFCLASS32");
 140     return FALSE;
 141   }
 142   if (mEhdr->e_ident[EI_DATA] != ELFDATA2LSB) {
 143     Error (NULL, 0, 3000, "Unsupported", "ELF EI_DATA not ELFDATA2LSB");
 144     return FALSE;
 145   }
 146   if ((mEhdr->e_type != ET_EXEC) && (mEhdr->e_type != ET_DYN)) {
 147     Error (NULL, 0, 3000, "Unsupported", "ELF e_type not ET_EXEC or ET_DYN");
 148     return FALSE;
 149   }
 150   if (!((mEhdr->e_machine == EM_386) || (mEhdr->e_machine == EM_ARM))) {
 151     Error (NULL, 0, 3000, "Unsupported", "ELF e_machine not EM_386 or EM_ARM");
 152     return FALSE;
 153   }
 154   if (mEhdr->e_version != EV_CURRENT) {
 155     Error (NULL, 0, 3000, "Unsupported", "ELF e_version (%u) not EV_CURRENT (%d)", (unsigned) mEhdr->e_version, EV_CURRENT);
 156     return FALSE;
 157   }
 158
 159   //
 160   // Update section header pointers
 161   //
 162   mShdrBase  = (Elf_Shdr *)((UINT8 *)mEhdr + mEhdr->e_shoff);
 163   mPhdrBase = (Elf_Phdr *)((UINT8 *)mEhdr + mEhdr->e_phoff);
 164
 165   //
 166   // Create COFF Section offset buffer and zero.
 167   //
 168   mCoffSectionsOffset = (UINT32 *)malloc(mEhdr->e_shnum * sizeof (UINT32));
 169   if (mCoffSectionsOffset == NULL) {
 170     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 171     return FALSE;
 172   }
 173   memset(mCoffSectionsOffset, 0, mEhdr->e_shnum * sizeof(UINT32));
 174
 175   //
 176   // Fill in function pointers.
 177   //
 178   ElfFunctions->ScanSections = ScanSections32;
 179   ElfFunctions->WriteSections = WriteSections32;
 180   ElfFunctions->WriteRelocations = WriteRelocations32;
 181   ElfFunctions->WriteDebug = WriteDebug32;
 182   ElfFunctions->SetImageSize = SetImageSize32;
 183   ElfFunctions->CleanUp = CleanUp32;
 184
 185   return TRUE;
 186 }
 187
 188
 189 //
 190 // Header by Index functions
 191 //
 192 STATIC
 193 Elf_Shdr*
 194 GetShdrByIndex (
 195   UINT32 Num
 196   )
 197 {
 198   if (Num >= mEhdr->e_shnum) {
 199     Error (NULL, 0, 3000, "Invalid", "GetShdrByIndex: Index %u is too high.", Num);
 200     exit(EXIT_FAILURE);
 201   }
 202
 203   return (Elf_Shdr*)((UINT8*)mShdrBase + Num * mEhdr->e_shentsize);
 204 }
 205
 206 STATIC
 207 Elf_Phdr*
 208 GetPhdrByIndex (
 209   UINT32 num
 210   )
 211 {
 212   if (num >= mEhdr->e_phnum) {
 213     Error (NULL, 0, 3000, "Invalid", "GetPhdrByIndex: Index %u is too high.", num);
 214     exit(EXIT_FAILURE);
 215   }
 216
 217   return (Elf_Phdr *)((UINT8*)mPhdrBase + num * mEhdr->e_phentsize);
 218 }
 219
 220 STATIC
 221 UINT32
 222 CoffAlign (
 223   UINT32 Offset
 224   )
 225 {
 226   return (Offset + mCoffAlignment - 1) & ~(mCoffAlignment - 1);
 227 }
 228
 229 STATIC
 230 UINT32
 231 DebugRvaAlign (
 232   UINT32 Offset
 233   )
 234 {
 235   return (Offset + 3) & ~3;
 236 }
 237
 238 //
 239 // filter functions
 240 //
 241 STATIC
 242 BOOLEAN
 243 IsTextShdr (
 244   Elf_Shdr *Shdr
 245   )
 246 {
 247   return (BOOLEAN) ((Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == SHF_ALLOC);
 248 }
 249
 250 STATIC
 251 BOOLEAN
 252 IsHiiRsrcShdr (
 253   Elf_Shdr *Shdr
 254   )
 255 {
 256   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 257
 258   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_HII_SECTION_NAME) == 0);
 259 }
 260
 261 STATIC
 262 BOOLEAN
 263 IsDataShdr (
 264   Elf_Shdr *Shdr
 265   )
 266 {
 267   if (IsHiiRsrcShdr(Shdr)) {
 268     return FALSE;
 269   }
 270   return (BOOLEAN) (Shdr->sh_flags & (SHF_WRITE | SHF_ALLOC)) == (SHF_ALLOC | SHF_WRITE);
 271 }
 272
 273 STATIC
 274 BOOLEAN
 275 IsStrtabShdr (
 276   Elf_Shdr *Shdr
 277   )
 278 {
 279   Elf_Shdr *Namedr = GetShdrByIndex(mEhdr->e_shstrndx);
 280
 281   return (BOOLEAN) (strcmp((CHAR8*)mEhdr + Namedr->sh_offset + Shdr->sh_name, ELF_STRTAB_SECTION_NAME) == 0);
 282 }
 283
 284 STATIC
 285 Elf_Shdr *
 286 FindStrtabShdr (
 287   VOID
 288   )
 289 {
 290   UINT32 i;
 291   for (i = 0; i < mEhdr->e_shnum; i++) {
 292     Elf_Shdr *shdr = GetShdrByIndex(i);
 293     if (IsStrtabShdr(shdr)) {
 294       return shdr;
 295     }
 296   }
 297   return NULL;
 298 }
 299
 300 STATIC
 301 const UINT8 *
 302 GetSymName (
 303   Elf_Sym *Sym
 304   )
 305 {
 306   Elf_Shdr *StrtabShdr;
 307   UINT8    *StrtabContents;
 308   BOOLEAN  foundEnd;
 309   UINT32   i;
 310
 311   if (Sym->st_name == 0) {
 312     return NULL;
 313   }
 314
 315   StrtabShdr = FindStrtabShdr();
 316   if (StrtabShdr == NULL) {
 317     return NULL;
 318   }
 319
 320   assert(Sym->st_name < StrtabShdr->sh_size);
 321
 322   StrtabContents = (UINT8*)mEhdr + StrtabShdr->sh_offset;
 323
 324   foundEnd = FALSE;
 325   for (i = Sym->st_name; (i < StrtabShdr->sh_size) && !foundEnd; i++) {
 326     foundEnd = (BOOLEAN)(StrtabContents[i] == 0);
 327   }
 328   assert(foundEnd);
 329
 330   return StrtabContents + Sym->st_name;
 331 }
 332
 333 //
 334 // Elf functions interface implementation
 335 //
 336
 337 STATIC
 338 VOID
 339 ScanSections32 (
 340   VOID
 341   )
 342 {
 343   UINT32                          i;
 344   EFI_IMAGE_DOS_HEADER            *DosHdr;
 345   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
 346   UINT32                          CoffEntry;
 347   UINT32                          SectionCount;
 348   BOOLEAN                         FoundSection;
 349
 350   CoffEntry = 0;
 351   mCoffOffset = 0;
 352
 353   //
 354   // Coff file start with a DOS header.
 355   //
 356   mCoffOffset = sizeof(EFI_IMAGE_DOS_HEADER) + 0x40;
 357   mNtHdrOffset = mCoffOffset;
 358   switch (mEhdr->e_machine) {
 359   case EM_386:
 360   case EM_ARM:
 361     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);
 362   break;
 363   default:
 364     VerboseMsg ("%s unknown e_machine type. Assume IA-32", (UINTN)mEhdr->e_machine);
 365     mCoffOffset += sizeof (EFI_IMAGE_NT_HEADERS32);
 366   break;
 367   }
 368
 369   mTableOffset = mCoffOffset;
 370   mCoffOffset += mCoffNbrSections * sizeof(EFI_IMAGE_SECTION_HEADER);
 371
 372   //
 373   // Set mCoffAlignment to the maximum alignment of the input sections
 374   // we care about
 375   //
 376   for (i = 0; i < mEhdr->e_shnum; i++) {
 377     Elf_Shdr *shdr = GetShdrByIndex(i);
 378     if (shdr->sh_addralign <= mCoffAlignment) {
 379       continue;
 380     }
 381     if (IsTextShdr(shdr) || IsDataShdr(shdr) || IsHiiRsrcShdr(shdr)) {
 382       mCoffAlignment = (UINT32)shdr->sh_addralign;
 383     }
 384   }
 385
 386   //
 387   // Check if mCoffAlignment is larger than MAX_COFF_ALIGNMENT
 388   //
 389   if (mCoffAlignment > MAX_COFF_ALIGNMENT) {
 390     Error (NULL, 0, 3000, "Invalid", "Section alignment is larger than MAX_COFF_ALIGNMENT.");
 391     assert (FALSE);
 392   }
 393
 394   //
 395   // Move the PE/COFF header right before the first section. This will help us
 396   // save space when converting to TE.
 397   //
 398   if (mCoffAlignment > mCoffOffset) {
 399     mNtHdrOffset += mCoffAlignment - mCoffOffset;
 400     mTableOffset += mCoffAlignment - mCoffOffset;
 401     mCoffOffset = mCoffAlignment;
 402   }
 403
 404   //
 405   // First text sections.
 406   //
 407   mCoffOffset = CoffAlign(mCoffOffset);
 408   mTextOffset = mCoffOffset;
 409   FoundSection = FALSE;
 410   SectionCount = 0;
 411   for (i = 0; i < mEhdr->e_shnum; i++) {
 412     Elf_Shdr *shdr = GetShdrByIndex(i);
 413     if (IsTextShdr(shdr)) {
 414       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 415         // the alignment field is valid
 416         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 417           // if the section address is aligned we must align PE/COFF
 418           mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
 419         } else {
 420           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 421         }
 422       }
 423
 424       /* Relocate entry.  */
 425       if ((mEhdr->e_entry >= shdr->sh_addr) &&
 426           (mEhdr->e_entry < shdr->sh_addr + shdr->sh_size)) {
 427         CoffEntry = mCoffOffset + mEhdr->e_entry - shdr->sh_addr;
 428       }
 429
 430       //
 431       // Set mTextOffset with the offset of the first '.text' section
 432       //
 433       if (!FoundSection) {
 434         mTextOffset = mCoffOffset;
 435         FoundSection = TRUE;
 436       }
 437
 438       mCoffSectionsOffset[i] = mCoffOffset;
 439       mCoffOffset += shdr->sh_size;
 440       SectionCount ++;
 441     }
 442   }
 443
 444   if (!FoundSection) {
 445     Error (NULL, 0, 3000, "Invalid", "Did not find any '.text' section.");
 446     assert (FALSE);
 447   }
 448
 449   mDebugOffset = DebugRvaAlign(mCoffOffset);
 450   mCoffOffset = CoffAlign(mCoffOffset);
 451
 452   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 453     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 text section. Source level debug might not work correctly.", mInImageName);
 454   }
 455
 456   //
 457   //  Then data sections.
 458   //
 459   mDataOffset = mCoffOffset;
 460   FoundSection = FALSE;
 461   SectionCount = 0;
 462   for (i = 0; i < mEhdr->e_shnum; i++) {
 463     Elf_Shdr *shdr = GetShdrByIndex(i);
 464     if (IsDataShdr(shdr)) {
 465       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 466         // the alignment field is valid
 467         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 468           // if the section address is aligned we must align PE/COFF
 469           mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
 470         } else {
 471           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 472         }
 473       }
 474
 475       //
 476       // Set mDataOffset with the offset of the first '.data' section
 477       //
 478       if (!FoundSection) {
 479         mDataOffset = mCoffOffset;
 480         FoundSection = TRUE;
 481       }
 482
 483       mCoffSectionsOffset[i] = mCoffOffset;
 484       mCoffOffset += shdr->sh_size;
 485       SectionCount ++;
 486     }
 487   }
 488
 489   if (SectionCount > 1 && mOutImageType == FW_EFI_IMAGE) {
 490     Warning (NULL, 0, 0, NULL, "Mulitple sections in %s are merged into 1 data section. Source level debug might not work correctly.", mInImageName);
 491   }
 492
 493   //
 494   // Make room for .debug data in .data (or .text if .data is empty) instead of
 495   // putting it in a section of its own. This is explicitly allowed by the
 496   // PE/COFF spec, and prevents bloat in the binary when using large values for
 497   // section alignment.
 498   //
 499   if (SectionCount > 0) {
 500     mDebugOffset = DebugRvaAlign(mCoffOffset);
 501   }
 502   mCoffOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY) +
 503                 sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) +
 504                 strlen(mInImageName) + 1;
 505
 506   mCoffOffset = CoffAlign(mCoffOffset);
 507   if (SectionCount == 0) {
 508     mDataOffset = mCoffOffset;
 509   }
 510
 511   //
 512   //  The HII resource sections.
 513   //
 514   mHiiRsrcOffset = mCoffOffset;
 515   for (i = 0; i < mEhdr->e_shnum; i++) {
 516     Elf_Shdr *shdr = GetShdrByIndex(i);
 517     if (IsHiiRsrcShdr(shdr)) {
 518       if ((shdr->sh_addralign != 0) && (shdr->sh_addralign != 1)) {
 519         // the alignment field is valid
 520         if ((shdr->sh_addr & (shdr->sh_addralign - 1)) == 0) {
 521           // if the section address is aligned we must align PE/COFF
 522           mCoffOffset = (mCoffOffset + shdr->sh_addralign - 1) & ~(shdr->sh_addralign - 1);
 523         } else {
 524           Error (NULL, 0, 3000, "Invalid", "Section address not aligned to its own alignment.");
 525         }
 526       }
 527       if (shdr->sh_size != 0) {
 528         mHiiRsrcOffset = mCoffOffset;
 529         mCoffSectionsOffset[i] = mCoffOffset;
 530         mCoffOffset += shdr->sh_size;
 531         mCoffOffset = CoffAlign(mCoffOffset);
 532         SetHiiResourceHeader ((UINT8*) mEhdr + shdr->sh_offset, mHiiRsrcOffset);
 533       }
 534       break;
 535     }
 536   }
 537
 538   mRelocOffset = mCoffOffset;
 539
 540   //
 541   // Allocate base Coff file.  Will be expanded later for relocations.
 542   //
 543   mCoffFile = (UINT8 *)malloc(mCoffOffset);
 544   if (mCoffFile == NULL) {
 545     Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");
 546   }
 547   assert (mCoffFile != NULL);
 548   memset(mCoffFile, 0, mCoffOffset);
 549
 550   //
 551   // Fill headers.
 552   //
 553   DosHdr = (EFI_IMAGE_DOS_HEADER *)mCoffFile;
 554   DosHdr->e_magic = EFI_IMAGE_DOS_SIGNATURE;
 555   DosHdr->e_lfanew = mNtHdrOffset;
 556
 557   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION*)(mCoffFile + mNtHdrOffset);
 558
 559   NtHdr->Pe32.Signature = EFI_IMAGE_NT_SIGNATURE;
 560
 561   switch (mEhdr->e_machine) {
 562   case EM_386:
 563     NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;
 564     NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
 565     break;
 566   case EM_ARM:
 567     NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_ARMT;
 568     NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
 569     break;
 570   default:
 571     VerboseMsg ("%s unknown e_machine type %hu. Assume IA-32", mInImageName, mEhdr->e_machine);
 572     NtHdr->Pe32.FileHeader.Machine = EFI_IMAGE_MACHINE_IA32;
 573     NtHdr->Pe32.OptionalHeader.Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
 574   }
 575
 576   NtHdr->Pe32.FileHeader.NumberOfSections = mCoffNbrSections;
 577   NtHdr->Pe32.FileHeader.TimeDateStamp = (UINT32) time(NULL);
 578   mImageTimeStamp = NtHdr->Pe32.FileHeader.TimeDateStamp;
 579   NtHdr->Pe32.FileHeader.PointerToSymbolTable = 0;
 580   NtHdr->Pe32.FileHeader.NumberOfSymbols = 0;
 581   NtHdr->Pe32.FileHeader.SizeOfOptionalHeader = sizeof(NtHdr->Pe32.OptionalHeader);
 582   NtHdr->Pe32.FileHeader.Characteristics = EFI_IMAGE_FILE_EXECUTABLE_IMAGE
 583     | EFI_IMAGE_FILE_LINE_NUMS_STRIPPED
 584     | EFI_IMAGE_FILE_LOCAL_SYMS_STRIPPED
 585     | EFI_IMAGE_FILE_32BIT_MACHINE;
 586
 587   NtHdr->Pe32.OptionalHeader.SizeOfCode = mDataOffset - mTextOffset;
 588   NtHdr->Pe32.OptionalHeader.SizeOfInitializedData = mRelocOffset - mDataOffset;
 589   NtHdr->Pe32.OptionalHeader.SizeOfUninitializedData = 0;
 590   NtHdr->Pe32.OptionalHeader.AddressOfEntryPoint = CoffEntry;
 591
 592   NtHdr->Pe32.OptionalHeader.BaseOfCode = mTextOffset;
 593
 594   NtHdr->Pe32.OptionalHeader.BaseOfData = mDataOffset;
 595   NtHdr->Pe32.OptionalHeader.ImageBase = 0;
 596   NtHdr->Pe32.OptionalHeader.SectionAlignment = mCoffAlignment;
 597   NtHdr->Pe32.OptionalHeader.FileAlignment = mCoffAlignment;
 598   NtHdr->Pe32.OptionalHeader.SizeOfImage = 0;
 599
 600   NtHdr->Pe32.OptionalHeader.SizeOfHeaders = mTextOffset;
 601   NtHdr->Pe32.OptionalHeader.NumberOfRvaAndSizes = EFI_IMAGE_NUMBER_OF_DIRECTORY_ENTRIES;
 602
 603   //
 604   // Section headers.
 605   //
 606   if ((mDataOffset - mTextOffset) > 0) {
 607     CreateSectionHeader (".text", mTextOffset, mDataOffset - mTextOffset,
 608             EFI_IMAGE_SCN_CNT_CODE
 609             | EFI_IMAGE_SCN_MEM_EXECUTE
 610             | EFI_IMAGE_SCN_MEM_READ);
 611   } else {
 612     // Don't make a section of size 0.
 613     NtHdr->Pe32.FileHeader.NumberOfSections--;
 614   }
 615
 616   if ((mHiiRsrcOffset - mDataOffset) > 0) {
 617     CreateSectionHeader (".data", mDataOffset, mHiiRsrcOffset - mDataOffset,
 618             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 619             | EFI_IMAGE_SCN_MEM_WRITE
 620             | EFI_IMAGE_SCN_MEM_READ);
 621   } else {
 622     // Don't make a section of size 0.
 623     NtHdr->Pe32.FileHeader.NumberOfSections--;
 624   }
 625
 626   if ((mRelocOffset - mHiiRsrcOffset) > 0) {
 627     CreateSectionHeader (".rsrc", mHiiRsrcOffset, mRelocOffset - mHiiRsrcOffset,
 628             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
 629             | EFI_IMAGE_SCN_MEM_READ);
 630
 631     NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = mRelocOffset - mHiiRsrcOffset;
 632     NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = mHiiRsrcOffset;
 633   } else {
 634     // Don't make a section of size 0.
 635     NtHdr->Pe32.FileHeader.NumberOfSections--;
 636   }
 637
 638 }
 639
 640 STATIC
 641 BOOLEAN
 642 WriteSections32 (
 643   SECTION_FILTER_TYPES  FilterType
 644   )
 645 {
 646   UINT32      Idx;
 647   Elf_Shdr    *SecShdr;
 648   UINT32      SecOffset;
 649   BOOLEAN     (*Filter)(Elf_Shdr *);
 650
 651   //
 652   // Initialize filter pointer
 653   //
 654   switch (FilterType) {
 655     case SECTION_TEXT:
 656       Filter = IsTextShdr;
 657       break;
 658     case SECTION_HII:
 659       Filter = IsHiiRsrcShdr;
 660       break;
 661     case SECTION_DATA:
 662       Filter = IsDataShdr;
 663       break;
 664     default:
 665       return FALSE;
 666   }
 667
 668   //
 669   // First: copy sections.
 670   //
 671   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 672     Elf_Shdr *Shdr = GetShdrByIndex(Idx);
 673     if ((*Filter)(Shdr)) {
 674       switch (Shdr->sh_type) {
 675       case SHT_PROGBITS:
 676         /* Copy.  */
 677         if (Shdr->sh_offset + Shdr->sh_size > mFileBufferSize) {
 678           return FALSE;
 679         }
 680         memcpy(mCoffFile + mCoffSectionsOffset[Idx],
 681               (UINT8*)mEhdr + Shdr->sh_offset,
 682               Shdr->sh_size);
 683         break;
 684
 685       case SHT_NOBITS:
 686         memset(mCoffFile + mCoffSectionsOffset[Idx], 0, Shdr->sh_size);
 687         break;
 688
 689       default:
 690         //
 691         //  Ignore for unkown section type.
 692         //
 693         VerboseMsg ("%s unknown section type %x. We directly copy this section into Coff file", mInImageName, (unsigned)Shdr->sh_type);
 694         break;
 695       }
 696     }
 697   }
 698
 699   //
 700   // Second: apply relocations.
 701   //
 702   for (Idx = 0; Idx < mEhdr->e_shnum; Idx++) {
 703     //
 704     // Determine if this is a relocation section.
 705     //
 706     Elf_Shdr *RelShdr = GetShdrByIndex(Idx);
 707     if ((RelShdr->sh_type != SHT_REL) && (RelShdr->sh_type != SHT_RELA)) {
 708       continue;
 709     }
 710
 711     //
 712     // Relocation section found.  Now extract section information that the relocations
 713     // apply to in the ELF data and the new COFF data.
 714     //
 715     SecShdr = GetShdrByIndex(RelShdr->sh_info);
 716     SecOffset = mCoffSectionsOffset[RelShdr->sh_info];
 717
 718     //
 719     // Only process relocations for the current filter type.
 720     //
 721     if (RelShdr->sh_type == SHT_REL && (*Filter)(SecShdr)) {
 722       UINT32 RelOffset;
 723
 724       //
 725       // Determine the symbol table referenced by the relocation data.
 726       //
 727       Elf_Shdr *SymtabShdr = GetShdrByIndex(RelShdr->sh_link);
 728       UINT8 *Symtab = (UINT8*)mEhdr + SymtabShdr->sh_offset;
 729
 730       //
 731       // Process all relocation entries for this section.
 732       //
 733       for (RelOffset = 0; RelOffset < RelShdr->sh_size; RelOffset += RelShdr->sh_entsize) {
 734         //
 735         // Set pointer to relocation entry
 736         //
 737         Elf_Rel *Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelOffset);
 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         UINT16 Address;
 747
 748         //
 749         // Check section header index found in symbol table and get the section
 750         // header location.
 751         //
 752         if (Sym->st_shndx == SHN_UNDEF
 753             || Sym->st_shndx >= mEhdr->e_shnum) {
 754           const UINT8 *SymName = GetSymName(Sym);
 755           if (SymName == NULL) {
 756             SymName = (const UINT8 *)"<unknown>";
 757           }
 758
 759           Error (NULL, 0, 3000, "Invalid",
 760                  "%s: Bad definition for symbol '%s'@%#x or unsupported symbol type.  "
 761                  "For example, absolute and undefined symbols are not supported.",
 762                  mInImageName, SymName, Sym->st_value);
 763
 764           exit(EXIT_FAILURE);
 765         }
 766         SymShdr = GetShdrByIndex(Sym->st_shndx);
 767
 768         //
 769         // Convert the relocation data to a pointer into the coff file.
 770         //
 771         // Note:
 772         //   r_offset is the virtual address of the storage unit to be relocated.
 773         //   sh_addr is the virtual address for the base of the section.
 774         //
 775         Targ = mCoffFile + SecOffset + (Rel->r_offset - SecShdr->sh_addr);
 776
 777         //
 778         // Determine how to handle each relocation type based on the machine type.
 779         //
 780         if (mEhdr->e_machine == EM_386) {
 781           switch (ELF_R_TYPE(Rel->r_info)) {
 782           case R_386_NONE:
 783             break;
 784           case R_386_32:
 785             //
 786             // Absolute relocation.
 787             //  Converts Targ from a absolute virtual address to the absolute
 788             //  COFF address.
 789             //
 790             *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr
 791               + mCoffSectionsOffset[Sym->st_shndx];
 792             break;
 793           case R_386_PC32:
 794             //
 795             // Relative relocation: Symbol - Ip + Addend
 796             //
 797             *(UINT32 *)Targ = *(UINT32 *)Targ
 798               + (mCoffSectionsOffset[Sym->st_shndx] - SymShdr->sh_addr)
 799               - (SecOffset - SecShdr->sh_addr);
 800             break;
 801           default:
 802             Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 803           }
 804         } else if (mEhdr->e_machine == EM_ARM) {
 805           switch (ELF32_R_TYPE(Rel->r_info)) {
 806           case R_ARM_RBASE:
 807             // No relocation - no action required
 808             // break skipped
 809
 810           case R_ARM_PC24:
 811           case R_ARM_REL32:
 812           case R_ARM_XPC25:
 813           case R_ARM_THM_PC22:
 814           case R_ARM_THM_JUMP19:
 815           case R_ARM_CALL:
 816           case R_ARM_JMP24:
 817           case R_ARM_THM_JUMP24:
 818           case R_ARM_PREL31:
 819           case R_ARM_MOVW_PREL_NC:
 820           case R_ARM_MOVT_PREL:
 821           case R_ARM_THM_MOVW_PREL_NC:
 822           case R_ARM_THM_MOVT_PREL:
 823           case R_ARM_THM_JMP6:
 824           case R_ARM_THM_ALU_PREL_11_0:
 825           case R_ARM_THM_PC12:
 826           case R_ARM_REL32_NOI:
 827           case R_ARM_ALU_PC_G0_NC:
 828           case R_ARM_ALU_PC_G0:
 829           case R_ARM_ALU_PC_G1_NC:
 830           case R_ARM_ALU_PC_G1:
 831           case R_ARM_ALU_PC_G2:
 832           case R_ARM_LDR_PC_G1:
 833           case R_ARM_LDR_PC_G2:
 834           case R_ARM_LDRS_PC_G0:
 835           case R_ARM_LDRS_PC_G1:
 836           case R_ARM_LDRS_PC_G2:
 837           case R_ARM_LDC_PC_G0:
 838           case R_ARM_LDC_PC_G1:
 839           case R_ARM_LDC_PC_G2:
 840           case R_ARM_GOT_PREL:
 841           case R_ARM_THM_JUMP11:
 842           case R_ARM_THM_JUMP8:
 843           case R_ARM_TLS_GD32:
 844           case R_ARM_TLS_LDM32:
 845           case R_ARM_TLS_IE32:
 846             // Thease are all PC-relative relocations and don't require modification
 847             // GCC does not seem to have the concept of a application that just needs to get relocated.
 848             break;
 849
 850           case R_ARM_THM_MOVW_ABS_NC:
 851             // MOVW is only lower 16-bits of the addres
 852             Address = (UINT16)(Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]);
 853             ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);
 854             break;
 855
 856           case R_ARM_THM_MOVT_ABS:
 857             // MOVT is only upper 16-bits of the addres
 858             Address = (UINT16)((Sym->st_value - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx]) >> 16);
 859             ThumbMovtImmediatePatch ((UINT16 *)Targ, Address);
 860             break;
 861
 862           case R_ARM_ABS32:
 863           case R_ARM_RABS32:
 864             //
 865             // Absolute relocation.
 866             //
 867             *(UINT32 *)Targ = *(UINT32 *)Targ - SymShdr->sh_addr + mCoffSectionsOffset[Sym->st_shndx];
 868             break;
 869
 870           default:
 871             Error (NULL, 0, 3000, "Invalid", "WriteSections (): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));
 872           }
 873         }
 874       }
 875     }
 876   }
 877
 878   return TRUE;
 879 }
 880
 881 UINTN gMovwOffset = 0;
 882
 883 STATIC
 884 VOID
 885 WriteRelocations32 (
 886   VOID
 887   )
 888 {
 889   UINT32                           Index;
 890   EFI_IMAGE_OPTIONAL_HEADER_UNION  *NtHdr;
 891   EFI_IMAGE_DATA_DIRECTORY         *Dir;
 892   BOOLEAN                          FoundRelocations;
 893   Elf_Dyn                          *Dyn;
 894   Elf_Rel                          *Rel;
 895   UINTN                            RelElementSize;
 896   UINTN                            RelSize;
 897   UINTN                            RelOffset;
 898   UINTN                            K;
 899   Elf32_Phdr                       *DynamicSegment;
 900
 901   for (Index = 0, FoundRelocations = FALSE; Index < mEhdr->e_shnum; Index++) {
 902     Elf_Shdr *RelShdr = GetShdrByIndex(Index);
 903     if ((RelShdr->sh_type == SHT_REL) || (RelShdr->sh_type == SHT_RELA)) {
 904       Elf_Shdr *SecShdr = GetShdrByIndex (RelShdr->sh_info);
 905       if (IsTextShdr(SecShdr) || IsDataShdr(SecShdr)) {
 906         UINT32 RelIdx;
 907
 908         FoundRelocations = TRUE;
 909         for (RelIdx = 0; RelIdx < RelShdr->sh_size; RelIdx += RelShdr->sh_entsize) {
 910           Rel = (Elf_Rel *)((UINT8*)mEhdr + RelShdr->sh_offset + RelIdx);
 911
 912           if (mEhdr->e_machine == EM_386) {
 913             switch (ELF_R_TYPE(Rel->r_info)) {
 914             case R_386_NONE:
 915             case R_386_PC32:
 916               //
 917               // No fixup entry required.
 918               //
 919               break;
 920             case R_386_32:
 921               //
 922               // Creates a relative relocation entry from the absolute entry.
 923               //
 924               CoffAddFixup(mCoffSectionsOffset[RelShdr->sh_info]
 925               + (Rel->r_offset - SecShdr->sh_addr),
 926               EFI_IMAGE_REL_BASED_HIGHLOW);
 927               break;
 928             default:
 929               Error (NULL, 0, 3000, "Invalid", "%s unsupported ELF EM_386 relocation 0x%x.", mInImageName, (unsigned) ELF_R_TYPE(Rel->r_info));
 930             }
 931           } else if (mEhdr->e_machine == EM_ARM) {
 932             switch (ELF32_R_TYPE(Rel->r_info)) {
 933             case R_ARM_RBASE:
 934               // No relocation - no action required
 935               // break skipped
 936
 937             case R_ARM_PC24:
 938             case R_ARM_REL32:
 939             case R_ARM_XPC25:
 940             case R_ARM_THM_PC22:
 941             case R_ARM_THM_JUMP19:
 942             case R_ARM_CALL:
 943             case R_ARM_JMP24:
 944             case R_ARM_THM_JUMP24:
 945             case R_ARM_PREL31:
 946             case R_ARM_MOVW_PREL_NC:
 947             case R_ARM_MOVT_PREL:
 948             case R_ARM_THM_MOVW_PREL_NC:
 949             case R_ARM_THM_MOVT_PREL:
 950             case R_ARM_THM_JMP6:
 951             case R_ARM_THM_ALU_PREL_11_0:
 952             case R_ARM_THM_PC12:
 953             case R_ARM_REL32_NOI:
 954             case R_ARM_ALU_PC_G0_NC:
 955             case R_ARM_ALU_PC_G0:
 956             case R_ARM_ALU_PC_G1_NC:
 957             case R_ARM_ALU_PC_G1:
 958             case R_ARM_ALU_PC_G2:
 959             case R_ARM_LDR_PC_G1:
 960             case R_ARM_LDR_PC_G2:
 961             case R_ARM_LDRS_PC_G0:
 962             case R_ARM_LDRS_PC_G1:
 963             case R_ARM_LDRS_PC_G2:
 964             case R_ARM_LDC_PC_G0:
 965             case R_ARM_LDC_PC_G1:
 966             case R_ARM_LDC_PC_G2:
 967             case R_ARM_GOT_PREL:
 968             case R_ARM_THM_JUMP11:
 969             case R_ARM_THM_JUMP8:
 970             case R_ARM_TLS_GD32:
 971             case R_ARM_TLS_LDM32:
 972             case R_ARM_TLS_IE32:
 973               // Thease are all PC-relative relocations and don't require modification
 974               break;
 975
 976             case R_ARM_THM_MOVW_ABS_NC:
 977               CoffAddFixup (
 978                 mCoffSectionsOffset[RelShdr->sh_info]
 979                 + (Rel->r_offset - SecShdr->sh_addr),
 980                 EFI_IMAGE_REL_BASED_ARM_MOV32T
 981                 );
 982
 983               // PE/COFF treats MOVW/MOVT relocation as single 64-bit instruction
 984               // Track this address so we can log an error for unsupported sequence of MOVW/MOVT
 985               gMovwOffset = mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr);
 986               break;
 987
 988             case R_ARM_THM_MOVT_ABS:
 989               if ((gMovwOffset + 4) !=  (mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr))) {
 990                 Error (NULL, 0, 3000, "Not Supported", "PE/COFF requires MOVW+MOVT instruction sequence %x +4 != %x.", gMovwOffset, mCoffSectionsOffset[RelShdr->sh_info] + (Rel->r_offset - SecShdr->sh_addr));
 991               }
 992               break;
 993
 994             case R_ARM_ABS32:
 995             case R_ARM_RABS32:
 996               CoffAddFixup (
 997                 mCoffSectionsOffset[RelShdr->sh_info]
 998                 + (Rel->r_offset - SecShdr->sh_addr),
 999                 EFI_IMAGE_REL_BASED_HIGHLOW
1000                 );
1001               break;
1002
1003            default:
1004               Error (NULL, 0, 3000, "Invalid", "WriteRelocations(): %s unsupported ELF EM_ARM relocation 0x%x.", mInImageName, (unsigned) ELF32_R_TYPE(Rel->r_info));
1005             }
1006           } else {
1007             Error (NULL, 0, 3000, "Not Supported", "This tool does not support relocations for ELF with e_machine %u (processor type).", (unsigned) mEhdr->e_machine);
1008           }
1009         }
1010       }
1011     }
1012   }
1013
1014   if (!FoundRelocations && (mEhdr->e_machine == EM_ARM)) {
1015     /* Try again, but look for PT_DYNAMIC instead of SHT_REL */
1016
1017     for (Index = 0; Index < mEhdr->e_phnum; Index++) {
1018       RelElementSize = 0;
1019       RelSize = 0;
1020       RelOffset = 0;
1021
1022       DynamicSegment = GetPhdrByIndex (Index);
1023
1024       if (DynamicSegment->p_type == PT_DYNAMIC) {
1025         Dyn = (Elf32_Dyn *) ((UINT8 *)mEhdr + DynamicSegment->p_offset);
1026
1027         while (Dyn->d_tag != DT_NULL) {
1028           switch (Dyn->d_tag) {
1029             case  DT_REL:
1030               RelOffset = Dyn->d_un.d_val;
1031               break;
1032
1033             case  DT_RELSZ:
1034               RelSize = Dyn->d_un.d_val;
1035               break;
1036
1037             case  DT_RELENT:
1038               RelElementSize = Dyn->d_un.d_val;
1039               break;
1040
1041             default:
1042               break;
1043           }
1044           Dyn++;
1045         }
1046         if (( RelOffset == 0 ) || ( RelSize == 0 ) || ( RelElementSize == 0 )) {
1047           Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations.", mInImageName);
1048         }
1049
1050         for (Index = 0; Index < mEhdr->e_shnum; Index++) {
1051           Elf_Shdr *shdr = GetShdrByIndex(Index);
1052
1053           //
1054           // The PT_DYNAMIC section contains DT_REL relocations whose r_offset
1055           // field is relative to the base of a segment (or the entire image),
1056           // and not to the base of an ELF input section as is the case for
1057           // SHT_REL sections. This means that we cannot fix up such relocations
1058           // unless we cross-reference ELF sections and segments, considering
1059           // that the output placement recorded in mCoffSectionsOffset[] is
1060           // section based, not segment based.
1061           //
1062           // Fortunately, there is a simple way around this: we require that the
1063           // in-memory layout of the ELF and PE/COFF versions of the binary is
1064           // identical. That way, r_offset will retain its validity as a PE/COFF
1065           // image offset, and we can record it in the COFF fixup table
1066           // unmodified.
1067           //
1068           if (shdr->sh_addr != mCoffSectionsOffset[Index]) {
1069             Error (NULL, 0, 3000,
1070               "Invalid", "%s: PT_DYNAMIC relocations require identical ELF and PE/COFF section offsets.",
1071               mInImageName);
1072           }
1073         }
1074
1075         for (K = 0; K < RelSize; K += RelElementSize) {
1076
1077           if (DynamicSegment->p_paddr == 0) {
1078             // Older versions of the ARM ELF (SWS ESPC 0003 B-02) specification define DT_REL
1079             // as an offset in the dynamic segment. p_paddr is defined to be zero for ARM tools
1080             Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + DynamicSegment->p_offset + RelOffset + K);
1081           } else {
1082             // This is how it reads in the generic ELF specification
1083             Rel = (Elf32_Rel *) ((UINT8 *) mEhdr + RelOffset + K);
1084           }
1085
1086           switch (ELF32_R_TYPE (Rel->r_info)) {
1087           case  R_ARM_RBASE:
1088             break;
1089
1090           case  R_ARM_RABS32:
1091             CoffAddFixup (Rel->r_offset, EFI_IMAGE_REL_BASED_HIGHLOW);
1092             break;
1093
1094           default:
1095             Error (NULL, 0, 3000, "Invalid", "%s bad ARM dynamic relocations, unkown type %d.", mInImageName, ELF32_R_TYPE (Rel->r_info));
1096             break;
1097           }
1098         }
1099         break;
1100       }
1101     }
1102   }
1103
1104   //
1105   // Pad by adding empty entries.
1106   //
1107   while (mCoffOffset & (mCoffAlignment - 1)) {
1108     CoffAddFixupEntry(0);
1109   }
1110
1111   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1112   Dir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC];
1113   Dir->Size = mCoffOffset - mRelocOffset;
1114   if (Dir->Size == 0) {
1115     // If no relocations, null out the directory entry and don't add the .reloc section
1116     Dir->VirtualAddress = 0;
1117     NtHdr->Pe32.FileHeader.NumberOfSections--;
1118   } else {
1119     Dir->VirtualAddress = mRelocOffset;
1120     CreateSectionHeader (".reloc", mRelocOffset, mCoffOffset - mRelocOffset,
1121             EFI_IMAGE_SCN_CNT_INITIALIZED_DATA
1122             | EFI_IMAGE_SCN_MEM_DISCARDABLE
1123             | EFI_IMAGE_SCN_MEM_READ);
1124   }
1125
1126 }
1127
1128 STATIC
1129 VOID
1130 WriteDebug32 (
1131   VOID
1132   )
1133 {
1134   UINT32                              Len;
1135   EFI_IMAGE_OPTIONAL_HEADER_UNION     *NtHdr;
1136   EFI_IMAGE_DATA_DIRECTORY            *DataDir;
1137   EFI_IMAGE_DEBUG_DIRECTORY_ENTRY     *Dir;
1138   EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY *Nb10;
1139
1140   Len = strlen(mInImageName) + 1;
1141
1142   Dir = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY*)(mCoffFile + mDebugOffset);
1143   Dir->Type = EFI_IMAGE_DEBUG_TYPE_CODEVIEW;
1144   Dir->SizeOfData = sizeof(EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY) + Len;
1145   Dir->RVA = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1146   Dir->FileOffset = mDebugOffset + sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1147
1148   Nb10 = (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY*)(Dir + 1);
1149   Nb10->Signature = CODEVIEW_SIGNATURE_NB10;
1150   strcpy ((char *)(Nb10 + 1), mInImageName);
1151
1152
1153   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1154   DataDir = &NtHdr->Pe32.OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG];
1155   DataDir->VirtualAddress = mDebugOffset;
1156   DataDir->Size = sizeof(EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
1157 }
1158
1159 STATIC
1160 VOID
1161 SetImageSize32 (
1162   VOID
1163   )
1164 {
1165   EFI_IMAGE_OPTIONAL_HEADER_UNION *NtHdr;
1166
1167   //
1168   // Set image size
1169   //
1170   NtHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)(mCoffFile + mNtHdrOffset);
1171   NtHdr->Pe32.OptionalHeader.SizeOfImage = mCoffOffset;
1172 }
1173
1174 STATIC
1175 VOID
1176 CleanUp32 (
1177   VOID
1178   )
1179 {
1180   if (mCoffSectionsOffset != NULL) {
1181     free (mCoffSectionsOffset);
1182   }
1183 }
1184
1185