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::getSectionNext(DataRefImpl Sec,
292 SectionRef &Result) const {
293 const coff_section *sec = toSec(Sec);
295 Sec.p = reinterpret_cast<uintptr_t>(sec);
296 Result = SectionRef(Sec, this);
297 return object_error::success;
300 error_code COFFObjectFile::getSectionName(DataRefImpl Sec,
301 StringRef &Result) const {
302 const coff_section *sec = toSec(Sec);
303 return getSectionName(sec, Result);
306 error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
307 uint64_t &Result) const {
308 const coff_section *sec = toSec(Sec);
309 Result = sec->VirtualAddress;
310 return object_error::success;
313 error_code COFFObjectFile::getSectionSize(DataRefImpl Sec,
314 uint64_t &Result) const {
315 const coff_section *sec = toSec(Sec);
316 Result = sec->SizeOfRawData;
317 return object_error::success;
320 error_code COFFObjectFile::getSectionContents(DataRefImpl Sec,
321 StringRef &Result) const {
322 const coff_section *sec = toSec(Sec);
323 ArrayRef<uint8_t> Res;
324 error_code EC = getSectionContents(sec, Res);
325 Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
329 error_code COFFObjectFile::getSectionAlignment(DataRefImpl Sec,
330 uint64_t &Res) const {
331 const coff_section *sec = toSec(Sec);
333 return object_error::parse_failed;
334 Res = uint64_t(1) << (((sec->Characteristics & 0x00F00000) >> 20) - 1);
335 return object_error::success;
338 error_code COFFObjectFile::isSectionText(DataRefImpl Sec,
339 bool &Result) const {
340 const coff_section *sec = toSec(Sec);
341 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
342 return object_error::success;
345 error_code COFFObjectFile::isSectionData(DataRefImpl Sec,
346 bool &Result) const {
347 const coff_section *sec = toSec(Sec);
348 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
349 return object_error::success;
352 error_code COFFObjectFile::isSectionBSS(DataRefImpl Sec,
353 bool &Result) const {
354 const coff_section *sec = toSec(Sec);
355 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
356 return object_error::success;
359 error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
360 bool &Result) const {
361 // FIXME: Unimplemented
363 return object_error::success;
366 error_code COFFObjectFile::isSectionVirtual(DataRefImpl Sec,
367 bool &Result) const {
368 const coff_section *sec = toSec(Sec);
369 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
370 return object_error::success;
373 error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Sec,
374 bool &Result) const {
375 // FIXME: Unimplemented.
377 return object_error::success;
380 error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Sec,
381 bool &Result) const {
382 // FIXME: Unimplemented.
384 return object_error::success;
387 error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
389 bool &Result) const {
390 const coff_section *sec = toSec(Sec);
391 const coff_symbol *symb = toSymb(Symb);
392 const coff_section *symb_sec = 0;
393 if (error_code ec = getSection(symb->SectionNumber, symb_sec)) return ec;
398 return object_error::success;
401 relocation_iterator COFFObjectFile::getSectionRelBegin(DataRefImpl Sec) const {
402 const coff_section *sec = toSec(Sec);
404 if (sec->NumberOfRelocations == 0)
407 ret.p = reinterpret_cast<uintptr_t>(base() + sec->PointerToRelocations);
409 return relocation_iterator(RelocationRef(ret, this));
412 relocation_iterator COFFObjectFile::getSectionRelEnd(DataRefImpl Sec) const {
413 const coff_section *sec = toSec(Sec);
415 if (sec->NumberOfRelocations == 0)
418 ret.p = reinterpret_cast<uintptr_t>(
419 reinterpret_cast<const coff_relocation*>(
420 base() + sec->PointerToRelocations)
421 + sec->NumberOfRelocations);
423 return relocation_iterator(RelocationRef(ret, this));
426 COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
427 : ObjectFile(Binary::ID_COFF, Object, ec)
432 , StringTableSize(0) {
433 // Check that we at least have enough room for a header.
434 if (!checkSize(Data, ec, sizeof(coff_file_header))) return;
436 // The actual starting location of the COFF header in the file. This can be
437 // non-zero in PE/COFF files.
438 uint64_t HeaderStart = 0;
440 // Check if this is a PE/COFF file.
441 if (base()[0] == 0x4d && base()[1] == 0x5a) {
442 // PE/COFF, seek through MS-DOS compatibility stub and 4-byte
443 // PE signature to find 'normal' COFF header.
444 if (!checkSize(Data, ec, 0x3c + 8)) return;
445 HeaderStart = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
446 // Check the PE header. ("PE\0\0")
447 if (std::memcmp(base() + HeaderStart, "PE\0\0", 4) != 0) {
448 ec = object_error::parse_failed;
451 HeaderStart += 4; // Skip the PE Header.
454 Header = reinterpret_cast<const coff_file_header *>(base() + HeaderStart);
455 if (!checkAddr(Data, ec, uintptr_t(Header), sizeof(coff_file_header)))
459 reinterpret_cast<const coff_section *>( base()
461 + sizeof(coff_file_header)
462 + Header->SizeOfOptionalHeader);
463 if (!checkAddr(Data, ec, uintptr_t(SectionTable),
464 Header->NumberOfSections * sizeof(coff_section)))
467 if (Header->PointerToSymbolTable != 0) {
469 reinterpret_cast<const coff_symbol *>(base()
470 + Header->PointerToSymbolTable);
471 if (!checkAddr(Data, ec, uintptr_t(SymbolTable),
472 Header->NumberOfSymbols * sizeof(coff_symbol)))
475 // Find string table.
476 StringTable = reinterpret_cast<const char *>(base())
477 + Header->PointerToSymbolTable
478 + Header->NumberOfSymbols * sizeof(coff_symbol);
479 if (!checkAddr(Data, ec, uintptr_t(StringTable), sizeof(ulittle32_t)))
482 StringTableSize = *reinterpret_cast<const ulittle32_t *>(StringTable);
483 if (!checkAddr(Data, ec, uintptr_t(StringTable), StringTableSize))
485 // Check that the string table is null terminated if has any in it.
486 if (StringTableSize < 4
487 || (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)) {
488 ec = object_error::parse_failed;
493 ec = object_error::success;
496 symbol_iterator COFFObjectFile::begin_symbols() const {
498 ret.p = reinterpret_cast<intptr_t>(SymbolTable);
499 return symbol_iterator(SymbolRef(ret, this));
502 symbol_iterator COFFObjectFile::end_symbols() const {
503 // The symbol table ends where the string table begins.
505 ret.p = reinterpret_cast<intptr_t>(StringTable);
506 return symbol_iterator(SymbolRef(ret, this));
509 symbol_iterator COFFObjectFile::begin_dynamic_symbols() const {
511 report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
514 symbol_iterator COFFObjectFile::end_dynamic_symbols() const {
516 report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
519 library_iterator COFFObjectFile::begin_libraries_needed() const {
521 report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
524 library_iterator COFFObjectFile::end_libraries_needed() const {
526 report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
529 StringRef COFFObjectFile::getLoadName() const {
530 // COFF does not have this field.
535 section_iterator COFFObjectFile::begin_sections() const {
537 ret.p = reinterpret_cast<intptr_t>(SectionTable);
538 return section_iterator(SectionRef(ret, this));
541 section_iterator COFFObjectFile::end_sections() const {
543 ret.p = reinterpret_cast<intptr_t>(SectionTable + Header->NumberOfSections);
544 return section_iterator(SectionRef(ret, this));
547 uint8_t COFFObjectFile::getBytesInAddress() const {
548 return getArch() == Triple::x86_64 ? 8 : 4;
551 StringRef COFFObjectFile::getFileFormatName() const {
552 switch(Header->Machine) {
553 case COFF::IMAGE_FILE_MACHINE_I386:
555 case COFF::IMAGE_FILE_MACHINE_AMD64:
556 return "COFF-x86-64";
558 return "COFF-<unknown arch>";
562 unsigned COFFObjectFile::getArch() const {
563 switch(Header->Machine) {
564 case COFF::IMAGE_FILE_MACHINE_I386:
566 case COFF::IMAGE_FILE_MACHINE_AMD64:
567 return Triple::x86_64;
569 return Triple::UnknownArch;
573 error_code COFFObjectFile::getHeader(const coff_file_header *&Res) const {
575 return object_error::success;
578 error_code COFFObjectFile::getSection(int32_t index,
579 const coff_section *&Result) const {
580 // Check for special index values.
581 if (index == COFF::IMAGE_SYM_UNDEFINED ||
582 index == COFF::IMAGE_SYM_ABSOLUTE ||
583 index == COFF::IMAGE_SYM_DEBUG)
585 else if (index > 0 && index <= Header->NumberOfSections)
586 // We already verified the section table data, so no need to check again.
587 Result = SectionTable + (index - 1);
589 return object_error::parse_failed;
590 return object_error::success;
593 error_code COFFObjectFile::getString(uint32_t offset,
594 StringRef &Result) const {
595 if (StringTableSize <= 4)
596 // Tried to get a string from an empty string table.
597 return object_error::parse_failed;
598 if (offset >= StringTableSize)
599 return object_error::unexpected_eof;
600 Result = StringRef(StringTable + offset);
601 return object_error::success;
604 error_code COFFObjectFile::getSymbol(uint32_t index,
605 const coff_symbol *&Result) const {
606 if (index < Header->NumberOfSymbols)
607 Result = SymbolTable + index;
609 return object_error::parse_failed;
610 return object_error::success;
613 error_code COFFObjectFile::getSymbolName(const coff_symbol *symbol,
614 StringRef &Res) const {
615 // Check for string table entry. First 4 bytes are 0.
616 if (symbol->Name.Offset.Zeroes == 0) {
617 uint32_t Offset = symbol->Name.Offset.Offset;
618 if (error_code ec = getString(Offset, Res))
620 return object_error::success;
623 if (symbol->Name.ShortName[7] == 0)
624 // Null terminated, let ::strlen figure out the length.
625 Res = StringRef(symbol->Name.ShortName);
627 // Not null terminated, use all 8 bytes.
628 Res = StringRef(symbol->Name.ShortName, 8);
629 return object_error::success;
632 ArrayRef<uint8_t> COFFObjectFile::getSymbolAuxData(
633 const coff_symbol *symbol) const {
634 const uint8_t *aux = NULL;
636 if ( symbol->NumberOfAuxSymbols > 0 ) {
637 // AUX data comes immediately after the symbol in COFF
638 aux = reinterpret_cast<const uint8_t *>(symbol + 1);
640 // Verify that the aux symbol points to a valid entry in the symbol table.
641 uintptr_t offset = uintptr_t(aux) - uintptr_t(base());
642 if (offset < Header->PointerToSymbolTable
643 || offset >= Header->PointerToSymbolTable
644 + (Header->NumberOfSymbols * sizeof(coff_symbol)))
645 report_fatal_error("Aux Symbol data was outside of symbol table.");
647 assert((offset - Header->PointerToSymbolTable) % sizeof(coff_symbol)
648 == 0 && "Aux Symbol data did not point to the beginning of a symbol");
651 return ArrayRef<uint8_t>(aux, symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
654 error_code COFFObjectFile::getSectionName(const coff_section *Sec,
655 StringRef &Res) const {
657 if (Sec->Name[7] == 0)
658 // Null terminated, let ::strlen figure out the length.
661 // Not null terminated, use all 8 bytes.
662 Name = StringRef(Sec->Name, 8);
664 // Check for string table entry. First byte is '/'.
665 if (Name[0] == '/') {
667 if (Name.substr(1).getAsInteger(10, Offset))
668 return object_error::parse_failed;
669 if (error_code ec = getString(Offset, Name))
674 return object_error::success;
677 error_code COFFObjectFile::getSectionContents(const coff_section *Sec,
678 ArrayRef<uint8_t> &Res) const {
679 // The only thing that we need to verify is that the contents is contained
680 // within the file bounds. We don't need to make sure it doesn't cover other
681 // data, as there's nothing that says that is not allowed.
682 uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
683 uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
684 if (ConEnd > uintptr_t(Data->getBufferEnd()))
685 return object_error::parse_failed;
686 Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
688 return object_error::success;
691 const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
692 return reinterpret_cast<const coff_relocation*>(Rel.p);
694 error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel,
695 RelocationRef &Res) const {
696 Rel.p = reinterpret_cast<uintptr_t>(
697 reinterpret_cast<const coff_relocation*>(Rel.p) + 1);
698 Res = RelocationRef(Rel, this);
699 return object_error::success;
701 error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
702 uint64_t &Res) const {
703 Res = toRel(Rel)->VirtualAddress;
704 return object_error::success;
706 error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
707 uint64_t &Res) const {
708 Res = toRel(Rel)->VirtualAddress;
709 return object_error::success;
711 error_code COFFObjectFile::getRelocationSymbol(DataRefImpl Rel,
712 SymbolRef &Res) const {
713 const coff_relocation* R = toRel(Rel);
715 Symb.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
716 Res = SymbolRef(Symb, this);
717 return object_error::success;
719 error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
720 uint64_t &Res) const {
721 const coff_relocation* R = toRel(Rel);
723 return object_error::success;
726 const coff_section *COFFObjectFile::getCOFFSection(section_iterator &It) const {
727 return toSec(It->getRawDataRefImpl());
730 const coff_symbol *COFFObjectFile::getCOFFSymbol(symbol_iterator &It) const {
731 return toSymb(It->getRawDataRefImpl());
734 const coff_relocation *COFFObjectFile::getCOFFRelocation(
735 relocation_iterator &It) const {
736 return toRel(It->getRawDataRefImpl());
740 #define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
741 case COFF::enum: res = #enum; break;
743 error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
744 SmallVectorImpl<char> &Result) const {
745 const coff_relocation *reloc = toRel(Rel);
747 switch (Header->Machine) {
748 case COFF::IMAGE_FILE_MACHINE_AMD64:
749 switch (reloc->Type) {
750 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE);
751 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR64);
752 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32);
753 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32NB);
754 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32);
755 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_1);
756 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_2);
757 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_3);
758 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_4);
759 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_5);
760 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECTION);
761 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL);
762 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL7);
763 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_TOKEN);
764 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SREL32);
765 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR);
766 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32);
771 case COFF::IMAGE_FILE_MACHINE_I386:
772 switch (reloc->Type) {
773 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE);
774 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR16);
775 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL16);
776 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32);
777 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32NB);
778 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SEG12);
779 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECTION);
780 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL);
781 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_TOKEN);
782 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7);
783 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32);
791 Result.append(res.begin(), res.end());
792 return object_error::success;
795 #undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME
797 error_code COFFObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel,
798 int64_t &Res) const {
800 return object_error::success;
802 error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
803 SmallVectorImpl<char> &Result) const {
804 const coff_relocation *reloc = toRel(Rel);
805 const coff_symbol *symb = 0;
806 if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec;
808 sym.p = reinterpret_cast<uintptr_t>(symb);
810 if (error_code ec = getSymbolName(sym, symname)) return ec;
811 Result.append(symname.begin(), symname.end());
812 return object_error::success;
815 error_code COFFObjectFile::getLibraryNext(DataRefImpl LibData,
816 LibraryRef &Result) const {
817 report_fatal_error("getLibraryNext not implemented in COFFObjectFile");
820 error_code COFFObjectFile::getLibraryPath(DataRefImpl LibData,
821 StringRef &Result) const {
822 report_fatal_error("getLibraryPath not implemented in COFFObjectFile");
827 ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
829 return new COFFObjectFile(Object, ec);
832 } // end namespace llvm