1 //===- COFFObjectFile.cpp - COFF object file implementation -----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the COFFObjectFile class.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Object/COFF.h"
15 #include "llvm/ADT/ArrayRef.h"
16 #include "llvm/ADT/SmallString.h"
17 #include "llvm/ADT/StringSwitch.h"
18 #include "llvm/ADT/Triple.h"
21 using namespace object;
24 using support::ulittle8_t;
25 using support::ulittle16_t;
26 using support::ulittle32_t;
27 using support::little16_t;
31 // Returns false if size is greater than the buffer size. And sets ec.
32 bool checkSize(const MemoryBuffer *m, error_code &ec, uint64_t size) {
33 if (m->getBufferSize() < size) {
34 ec = object_error::unexpected_eof;
40 // Returns false if any bytes in [addr, addr + size) fall outsize of m.
41 bool checkAddr(const MemoryBuffer *m,
45 if (addr + size < addr ||
47 addr + size > uintptr_t(m->getBufferEnd())) {
48 ec = object_error::unexpected_eof;
55 const coff_symbol *COFFObjectFile::toSymb(DataRefImpl Symb) const {
56 const coff_symbol *addr = reinterpret_cast<const coff_symbol*>(Symb.p);
59 // Verify that the symbol points to a valid entry in the symbol table.
60 uintptr_t offset = uintptr_t(addr) - uintptr_t(base());
61 if (offset < Header->PointerToSymbolTable
62 || offset >= Header->PointerToSymbolTable
63 + (Header->NumberOfSymbols * sizeof(coff_symbol)))
64 report_fatal_error("Symbol was outside of symbol table.");
66 assert((offset - Header->PointerToSymbolTable) % sizeof(coff_symbol)
67 == 0 && "Symbol did not point to the beginning of a symbol");
73 const coff_section *COFFObjectFile::toSec(DataRefImpl Sec) const {
74 const coff_section *addr = reinterpret_cast<const coff_section*>(Sec.p);
77 // Verify that the section points to a valid entry in the section table.
78 if (addr < SectionTable
79 || addr >= (SectionTable + Header->NumberOfSections))
80 report_fatal_error("Section was outside of section table.");
82 uintptr_t offset = uintptr_t(addr) - uintptr_t(SectionTable);
83 assert(offset % sizeof(coff_section) == 0 &&
84 "Section did not point to the beginning of a section");
90 error_code COFFObjectFile::getSymbolNext(DataRefImpl Symb,
91 SymbolRef &Result) const {
92 const coff_symbol *symb = toSymb(Symb);
93 symb += 1 + symb->NumberOfAuxSymbols;
94 Symb.p = reinterpret_cast<uintptr_t>(symb);
95 Result = SymbolRef(Symb, this);
96 return object_error::success;
99 error_code COFFObjectFile::getSymbolName(DataRefImpl Symb,
100 StringRef &Result) const {
101 const coff_symbol *symb = toSymb(Symb);
102 return getSymbolName(symb, Result);
105 error_code COFFObjectFile::getSymbolFileOffset(DataRefImpl Symb,
106 uint64_t &Result) const {
107 const coff_symbol *symb = toSymb(Symb);
108 const coff_section *Section = NULL;
109 if (error_code ec = getSection(symb->SectionNumber, Section))
112 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
114 if (Type == 'U' || Type == 'w')
115 Result = UnknownAddressOrSize;
117 Result = Section->PointerToRawData + symb->Value;
119 Result = symb->Value;
120 return object_error::success;
123 error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
124 uint64_t &Result) const {
125 const coff_symbol *symb = toSymb(Symb);
126 const coff_section *Section = NULL;
127 if (error_code ec = getSection(symb->SectionNumber, Section))
130 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
132 if (Type == 'U' || Type == 'w')
133 Result = UnknownAddressOrSize;
135 Result = Section->VirtualAddress + symb->Value;
137 Result = symb->Value;
138 return object_error::success;
141 error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
142 SymbolRef::Type &Result) const {
143 const coff_symbol *symb = toSymb(Symb);
144 Result = SymbolRef::ST_Other;
145 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
146 symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
147 Result = SymbolRef::ST_Unknown;
149 if (symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
150 Result = SymbolRef::ST_Function;
153 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
155 if (Type == 'r' || Type == 'R') {
156 Result = SymbolRef::ST_Data;
160 return object_error::success;
163 error_code COFFObjectFile::getSymbolFlags(DataRefImpl Symb,
164 uint32_t &Result) const {
165 const coff_symbol *symb = toSymb(Symb);
166 Result = SymbolRef::SF_None;
168 // TODO: Correctly set SF_FormatSpecific, SF_ThreadLocal, SF_Common
170 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
171 symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
172 Result |= SymbolRef::SF_Undefined;
174 // TODO: This are certainly too restrictive.
175 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
176 Result |= SymbolRef::SF_Global;
178 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
179 Result |= SymbolRef::SF_Weak;
181 if (symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
182 Result |= SymbolRef::SF_Absolute;
184 return object_error::success;
187 error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
188 uint64_t &Result) const {
189 // FIXME: Return the correct size. This requires looking at all the symbols
190 // in the same section as this symbol, and looking for either the next
191 // symbol, or the end of the section.
192 const coff_symbol *symb = toSymb(Symb);
193 const coff_section *Section = NULL;
194 if (error_code ec = getSection(symb->SectionNumber, Section))
197 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
199 if (Type == 'U' || Type == 'w')
200 Result = UnknownAddressOrSize;
202 Result = Section->SizeOfRawData - symb->Value;
205 return object_error::success;
208 error_code COFFObjectFile::getSymbolNMTypeChar(DataRefImpl Symb,
209 char &Result) const {
210 const coff_symbol *symb = toSymb(Symb);
212 if (error_code ec = getSymbolName(Symb, name))
214 char ret = StringSwitch<char>(name)
215 .StartsWith(".debug", 'N')
216 .StartsWith(".sxdata", 'N')
221 return object_error::success;
224 uint32_t Characteristics = 0;
225 if (symb->SectionNumber > 0) {
226 const coff_section *Section = NULL;
227 if (error_code ec = getSection(symb->SectionNumber, Section))
229 Characteristics = Section->Characteristics;
232 switch (symb->SectionNumber) {
233 case COFF::IMAGE_SYM_UNDEFINED:
234 // Check storage classes.
235 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
237 return object_error::success; // Don't do ::toupper.
238 } else if (symb->Value != 0) // Check for common symbols.
243 case COFF::IMAGE_SYM_ABSOLUTE:
246 case COFF::IMAGE_SYM_DEBUG:
250 // Check section type.
251 if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
253 else if ( Characteristics & COFF::IMAGE_SCN_MEM_READ
254 && ~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
256 else if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
258 else if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
260 else if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
263 // Check for section symbol.
264 else if ( symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC
269 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
270 ret = ::toupper(ret);
273 return object_error::success;
276 error_code COFFObjectFile::getSymbolSection(DataRefImpl Symb,
277 section_iterator &Result) const {
278 const coff_symbol *symb = toSymb(Symb);
279 if (symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
280 Result = end_sections();
282 const coff_section *sec = 0;
283 if (error_code ec = getSection(symb->SectionNumber, sec)) return ec;
285 Sec.p = reinterpret_cast<uintptr_t>(sec);
286 Result = section_iterator(SectionRef(Sec, this));
288 return object_error::success;
291 error_code COFFObjectFile::getSymbolValue(DataRefImpl Symb,
292 uint64_t &Val) const {
293 report_fatal_error("getSymbolValue unimplemented in COFFObjectFile");
296 error_code COFFObjectFile::getSectionNext(DataRefImpl Sec,
297 SectionRef &Result) const {
298 const coff_section *sec = toSec(Sec);
300 Sec.p = reinterpret_cast<uintptr_t>(sec);
301 Result = SectionRef(Sec, this);
302 return object_error::success;
305 error_code COFFObjectFile::getSectionName(DataRefImpl Sec,
306 StringRef &Result) const {
307 const coff_section *sec = toSec(Sec);
308 return getSectionName(sec, Result);
311 error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
312 uint64_t &Result) const {
313 const coff_section *sec = toSec(Sec);
314 Result = sec->VirtualAddress;
315 return object_error::success;
318 error_code COFFObjectFile::getSectionSize(DataRefImpl Sec,
319 uint64_t &Result) const {
320 const coff_section *sec = toSec(Sec);
321 Result = sec->SizeOfRawData;
322 return object_error::success;
325 error_code COFFObjectFile::getSectionContents(DataRefImpl Sec,
326 StringRef &Result) const {
327 const coff_section *sec = toSec(Sec);
328 ArrayRef<uint8_t> Res;
329 error_code EC = getSectionContents(sec, Res);
330 Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
334 error_code COFFObjectFile::getSectionAlignment(DataRefImpl Sec,
335 uint64_t &Res) const {
336 const coff_section *sec = toSec(Sec);
338 return object_error::parse_failed;
339 Res = uint64_t(1) << (((sec->Characteristics & 0x00F00000) >> 20) - 1);
340 return object_error::success;
343 error_code COFFObjectFile::isSectionText(DataRefImpl Sec,
344 bool &Result) const {
345 const coff_section *sec = toSec(Sec);
346 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
347 return object_error::success;
350 error_code COFFObjectFile::isSectionData(DataRefImpl Sec,
351 bool &Result) const {
352 const coff_section *sec = toSec(Sec);
353 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
354 return object_error::success;
357 error_code COFFObjectFile::isSectionBSS(DataRefImpl Sec,
358 bool &Result) const {
359 const coff_section *sec = toSec(Sec);
360 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
361 return object_error::success;
364 error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
365 bool &Result) const {
366 // FIXME: Unimplemented
368 return object_error::success;
371 error_code COFFObjectFile::isSectionVirtual(DataRefImpl Sec,
372 bool &Result) const {
373 const coff_section *sec = toSec(Sec);
374 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
375 return object_error::success;
378 error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Sec,
379 bool &Result) const {
380 // FIXME: Unimplemented.
382 return object_error::success;
385 error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Sec,
386 bool &Result) const {
387 // FIXME: Unimplemented.
389 return object_error::success;
392 error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
394 bool &Result) const {
395 const coff_section *sec = toSec(Sec);
396 const coff_symbol *symb = toSymb(Symb);
397 const coff_section *symb_sec = 0;
398 if (error_code ec = getSection(symb->SectionNumber, symb_sec)) return ec;
403 return object_error::success;
406 relocation_iterator COFFObjectFile::getSectionRelBegin(DataRefImpl Sec) const {
407 const coff_section *sec = toSec(Sec);
409 if (sec->NumberOfRelocations == 0)
412 ret.p = reinterpret_cast<uintptr_t>(base() + sec->PointerToRelocations);
414 return relocation_iterator(RelocationRef(ret, this));
417 relocation_iterator COFFObjectFile::getSectionRelEnd(DataRefImpl Sec) const {
418 const coff_section *sec = toSec(Sec);
420 if (sec->NumberOfRelocations == 0)
423 ret.p = reinterpret_cast<uintptr_t>(
424 reinterpret_cast<const coff_relocation*>(
425 base() + sec->PointerToRelocations)
426 + sec->NumberOfRelocations);
428 return relocation_iterator(RelocationRef(ret, this));
431 COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
432 : ObjectFile(Binary::ID_COFF, Object, ec)
437 , StringTableSize(0) {
438 // Check that we at least have enough room for a header.
439 if (!checkSize(Data, ec, sizeof(coff_file_header))) return;
441 // The actual starting location of the COFF header in the file. This can be
442 // non-zero in PE/COFF files.
443 uint64_t HeaderStart = 0;
445 // Check if this is a PE/COFF file.
446 if (base()[0] == 0x4d && base()[1] == 0x5a) {
447 // PE/COFF, seek through MS-DOS compatibility stub and 4-byte
448 // PE signature to find 'normal' COFF header.
449 if (!checkSize(Data, ec, 0x3c + 8)) return;
450 HeaderStart = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
451 // Check the PE header. ("PE\0\0")
452 if (std::memcmp(base() + HeaderStart, "PE\0\0", 4) != 0) {
453 ec = object_error::parse_failed;
456 HeaderStart += 4; // Skip the PE Header.
459 Header = reinterpret_cast<const coff_file_header *>(base() + HeaderStart);
460 if (!checkAddr(Data, ec, uintptr_t(Header), sizeof(coff_file_header)))
464 reinterpret_cast<const coff_section *>( base()
466 + sizeof(coff_file_header)
467 + Header->SizeOfOptionalHeader);
468 if (!checkAddr(Data, ec, uintptr_t(SectionTable),
469 Header->NumberOfSections * sizeof(coff_section)))
472 if (Header->PointerToSymbolTable != 0) {
474 reinterpret_cast<const coff_symbol *>(base()
475 + Header->PointerToSymbolTable);
476 if (!checkAddr(Data, ec, uintptr_t(SymbolTable),
477 Header->NumberOfSymbols * sizeof(coff_symbol)))
480 // Find string table.
481 StringTable = reinterpret_cast<const char *>(base())
482 + Header->PointerToSymbolTable
483 + Header->NumberOfSymbols * sizeof(coff_symbol);
484 if (!checkAddr(Data, ec, uintptr_t(StringTable), sizeof(ulittle32_t)))
487 StringTableSize = *reinterpret_cast<const ulittle32_t *>(StringTable);
488 if (!checkAddr(Data, ec, uintptr_t(StringTable), StringTableSize))
490 // Check that the string table is null terminated if has any in it.
491 if (StringTableSize < 4
492 || (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)) {
493 ec = object_error::parse_failed;
498 ec = object_error::success;
501 symbol_iterator COFFObjectFile::begin_symbols() const {
503 ret.p = reinterpret_cast<intptr_t>(SymbolTable);
504 return symbol_iterator(SymbolRef(ret, this));
507 symbol_iterator COFFObjectFile::end_symbols() const {
508 // The symbol table ends where the string table begins.
510 ret.p = reinterpret_cast<intptr_t>(StringTable);
511 return symbol_iterator(SymbolRef(ret, this));
514 symbol_iterator COFFObjectFile::begin_dynamic_symbols() const {
516 report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
519 symbol_iterator COFFObjectFile::end_dynamic_symbols() const {
521 report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
524 library_iterator COFFObjectFile::begin_libraries_needed() const {
526 report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
529 library_iterator COFFObjectFile::end_libraries_needed() const {
531 report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
534 StringRef COFFObjectFile::getLoadName() const {
535 // COFF does not have this field.
540 section_iterator COFFObjectFile::begin_sections() const {
542 ret.p = reinterpret_cast<intptr_t>(SectionTable);
543 return section_iterator(SectionRef(ret, this));
546 section_iterator COFFObjectFile::end_sections() const {
548 ret.p = reinterpret_cast<intptr_t>(SectionTable + Header->NumberOfSections);
549 return section_iterator(SectionRef(ret, this));
552 uint8_t COFFObjectFile::getBytesInAddress() const {
553 return getArch() == Triple::x86_64 ? 8 : 4;
556 StringRef COFFObjectFile::getFileFormatName() const {
557 switch(Header->Machine) {
558 case COFF::IMAGE_FILE_MACHINE_I386:
560 case COFF::IMAGE_FILE_MACHINE_AMD64:
561 return "COFF-x86-64";
563 return "COFF-<unknown arch>";
567 unsigned COFFObjectFile::getArch() const {
568 switch(Header->Machine) {
569 case COFF::IMAGE_FILE_MACHINE_I386:
571 case COFF::IMAGE_FILE_MACHINE_AMD64:
572 return Triple::x86_64;
574 return Triple::UnknownArch;
578 error_code COFFObjectFile::getHeader(const coff_file_header *&Res) const {
580 return object_error::success;
583 error_code COFFObjectFile::getSection(int32_t index,
584 const coff_section *&Result) const {
585 // Check for special index values.
586 if (index == COFF::IMAGE_SYM_UNDEFINED ||
587 index == COFF::IMAGE_SYM_ABSOLUTE ||
588 index == COFF::IMAGE_SYM_DEBUG)
590 else if (index > 0 && index <= Header->NumberOfSections)
591 // We already verified the section table data, so no need to check again.
592 Result = SectionTable + (index - 1);
594 return object_error::parse_failed;
595 return object_error::success;
598 error_code COFFObjectFile::getString(uint32_t offset,
599 StringRef &Result) const {
600 if (StringTableSize <= 4)
601 // Tried to get a string from an empty string table.
602 return object_error::parse_failed;
603 if (offset >= StringTableSize)
604 return object_error::unexpected_eof;
605 Result = StringRef(StringTable + offset);
606 return object_error::success;
609 error_code COFFObjectFile::getSymbol(uint32_t index,
610 const coff_symbol *&Result) const {
611 if (index < Header->NumberOfSymbols)
612 Result = SymbolTable + index;
614 return object_error::parse_failed;
615 return object_error::success;
618 error_code COFFObjectFile::getSymbolName(const coff_symbol *symbol,
619 StringRef &Res) const {
620 // Check for string table entry. First 4 bytes are 0.
621 if (symbol->Name.Offset.Zeroes == 0) {
622 uint32_t Offset = symbol->Name.Offset.Offset;
623 if (error_code ec = getString(Offset, Res))
625 return object_error::success;
628 if (symbol->Name.ShortName[7] == 0)
629 // Null terminated, let ::strlen figure out the length.
630 Res = StringRef(symbol->Name.ShortName);
632 // Not null terminated, use all 8 bytes.
633 Res = StringRef(symbol->Name.ShortName, 8);
634 return object_error::success;
637 ArrayRef<uint8_t> COFFObjectFile::getSymbolAuxData(
638 const coff_symbol *symbol) const {
639 const uint8_t *aux = NULL;
641 if ( symbol->NumberOfAuxSymbols > 0 ) {
642 // AUX data comes immediately after the symbol in COFF
643 aux = reinterpret_cast<const uint8_t *>(symbol + 1);
645 // Verify that the aux symbol points to a valid entry in the symbol table.
646 uintptr_t offset = uintptr_t(aux) - uintptr_t(base());
647 if (offset < Header->PointerToSymbolTable
648 || offset >= Header->PointerToSymbolTable
649 + (Header->NumberOfSymbols * sizeof(coff_symbol)))
650 report_fatal_error("Aux Symbol data was outside of symbol table.");
652 assert((offset - Header->PointerToSymbolTable) % sizeof(coff_symbol)
653 == 0 && "Aux Symbol data did not point to the beginning of a symbol");
656 return ArrayRef<uint8_t>(aux, symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
659 error_code COFFObjectFile::getSectionName(const coff_section *Sec,
660 StringRef &Res) const {
662 if (Sec->Name[7] == 0)
663 // Null terminated, let ::strlen figure out the length.
666 // Not null terminated, use all 8 bytes.
667 Name = StringRef(Sec->Name, 8);
669 // Check for string table entry. First byte is '/'.
670 if (Name[0] == '/') {
672 if (Name.substr(1).getAsInteger(10, Offset))
673 return object_error::parse_failed;
674 if (error_code ec = getString(Offset, Name))
679 return object_error::success;
682 error_code COFFObjectFile::getSectionContents(const coff_section *Sec,
683 ArrayRef<uint8_t> &Res) const {
684 // The only thing that we need to verify is that the contents is contained
685 // within the file bounds. We don't need to make sure it doesn't cover other
686 // data, as there's nothing that says that is not allowed.
687 uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
688 uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
689 if (ConEnd > uintptr_t(Data->getBufferEnd()))
690 return object_error::parse_failed;
691 Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
693 return object_error::success;
696 const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
697 return reinterpret_cast<const coff_relocation*>(Rel.p);
699 error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel,
700 RelocationRef &Res) const {
701 Rel.p = reinterpret_cast<uintptr_t>(
702 reinterpret_cast<const coff_relocation*>(Rel.p) + 1);
703 Res = RelocationRef(Rel, this);
704 return object_error::success;
706 error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
707 uint64_t &Res) const {
708 Res = toRel(Rel)->VirtualAddress;
709 return object_error::success;
711 error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
712 uint64_t &Res) const {
713 Res = toRel(Rel)->VirtualAddress;
714 return object_error::success;
716 error_code COFFObjectFile::getRelocationSymbol(DataRefImpl Rel,
717 SymbolRef &Res) const {
718 const coff_relocation* R = toRel(Rel);
720 Symb.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
721 Res = SymbolRef(Symb, this);
722 return object_error::success;
724 error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
725 uint64_t &Res) const {
726 const coff_relocation* R = toRel(Rel);
728 return object_error::success;
731 const coff_section *COFFObjectFile::getCOFFSection(section_iterator &It) const {
732 return toSec(It->getRawDataRefImpl());
735 const coff_symbol *COFFObjectFile::getCOFFSymbol(symbol_iterator &It) const {
736 return toSymb(It->getRawDataRefImpl());
739 const coff_relocation *COFFObjectFile::getCOFFRelocation(
740 relocation_iterator &It) const {
741 return toRel(It->getRawDataRefImpl());
745 #define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
746 case COFF::enum: res = #enum; break;
748 error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
749 SmallVectorImpl<char> &Result) const {
750 const coff_relocation *reloc = toRel(Rel);
752 switch (Header->Machine) {
753 case COFF::IMAGE_FILE_MACHINE_AMD64:
754 switch (reloc->Type) {
755 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE);
756 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR64);
757 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32);
758 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32NB);
759 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32);
760 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_1);
761 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_2);
762 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_3);
763 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_4);
764 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_5);
765 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECTION);
766 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL);
767 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL7);
768 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_TOKEN);
769 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SREL32);
770 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR);
771 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32);
776 case COFF::IMAGE_FILE_MACHINE_I386:
777 switch (reloc->Type) {
778 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE);
779 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR16);
780 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL16);
781 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32);
782 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32NB);
783 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SEG12);
784 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECTION);
785 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL);
786 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_TOKEN);
787 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7);
788 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32);
796 Result.append(res.begin(), res.end());
797 return object_error::success;
800 #undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME
802 error_code COFFObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel,
803 int64_t &Res) const {
805 return object_error::success;
807 error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
808 SmallVectorImpl<char> &Result) const {
809 const coff_relocation *reloc = toRel(Rel);
810 const coff_symbol *symb = 0;
811 if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec;
813 sym.p = reinterpret_cast<uintptr_t>(symb);
815 if (error_code ec = getSymbolName(sym, symname)) return ec;
816 Result.append(symname.begin(), symname.end());
817 return object_error::success;
820 error_code COFFObjectFile::getLibraryNext(DataRefImpl LibData,
821 LibraryRef &Result) const {
822 report_fatal_error("getLibraryNext not implemented in COFFObjectFile");
825 error_code COFFObjectFile::getLibraryPath(DataRefImpl LibData,
826 StringRef &Result) const {
827 report_fatal_error("getLibraryPath not implemented in COFFObjectFile");
832 ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
834 return new COFFObjectFile(Object, ec);
837 } // end namespace llvm