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/SmallString.h"
16 #include "llvm/ADT/StringSwitch.h"
17 #include "llvm/ADT/Triple.h"
20 using namespace object;
23 using support::ulittle8_t;
24 using support::ulittle16_t;
25 using support::ulittle32_t;
26 using support::little16_t;
30 // Returns false if size is greater than the buffer size. And sets ec.
31 bool checkSize(const MemoryBuffer *m, error_code &ec, uint64_t size) {
32 if (m->getBufferSize() < size) {
33 ec = object_error::unexpected_eof;
39 // Returns false if any bytes in [addr, addr + size) fall outsize of m.
40 bool checkAddr(const MemoryBuffer *m,
44 if (addr + size < addr ||
46 addr + size > uintptr_t(m->getBufferEnd())) {
47 ec = object_error::unexpected_eof;
54 const coff_symbol *COFFObjectFile::toSymb(DataRefImpl Symb) const {
55 const coff_symbol *addr = reinterpret_cast<const coff_symbol*>(Symb.p);
58 // Verify that the symbol points to a valid entry in the symbol table.
59 uintptr_t offset = uintptr_t(addr) - uintptr_t(base());
60 if (offset < Header->PointerToSymbolTable
61 || offset >= Header->PointerToSymbolTable
62 + (Header->NumberOfSymbols * sizeof(coff_symbol)))
63 report_fatal_error("Symbol was outside of symbol table.");
65 assert((offset - Header->PointerToSymbolTable) % sizeof(coff_symbol)
66 == 0 && "Symbol did not point to the beginning of a symbol");
72 const coff_section *COFFObjectFile::toSec(DataRefImpl Sec) const {
73 const coff_section *addr = reinterpret_cast<const coff_section*>(Sec.p);
76 // Verify that the section points to a valid entry in the section table.
77 if (addr < SectionTable
78 || addr >= (SectionTable + Header->NumberOfSections))
79 report_fatal_error("Section was outside of section table.");
81 uintptr_t offset = uintptr_t(addr) - uintptr_t(SectionTable);
82 assert(offset % sizeof(coff_section) == 0 &&
83 "Section did not point to the beginning of a section");
89 error_code COFFObjectFile::getSymbolNext(DataRefImpl Symb,
90 SymbolRef &Result) const {
91 const coff_symbol *symb = toSymb(Symb);
92 symb += 1 + symb->NumberOfAuxSymbols;
93 Symb.p = reinterpret_cast<uintptr_t>(symb);
94 Result = SymbolRef(Symb, this);
95 return object_error::success;
98 error_code COFFObjectFile::getSymbolName(DataRefImpl Symb,
99 StringRef &Result) const {
100 const coff_symbol *symb = toSymb(Symb);
101 return getSymbolName(symb, Result);
104 error_code COFFObjectFile::getSymbolOffset(DataRefImpl Symb,
105 uint64_t &Result) const {
106 const coff_symbol *symb = toSymb(Symb);
107 const coff_section *Section = NULL;
108 if (error_code ec = getSection(symb->SectionNumber, Section))
111 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
113 if (Type == 'U' || Type == 'w')
114 Result = UnknownAddressOrSize;
116 Result = Section->VirtualAddress + symb->Value;
118 Result = symb->Value;
119 return object_error::success;
122 error_code COFFObjectFile::getSymbolAddress(DataRefImpl Symb,
123 uint64_t &Result) const {
124 const coff_symbol *symb = toSymb(Symb);
125 const coff_section *Section = NULL;
126 if (error_code ec = getSection(symb->SectionNumber, Section))
129 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
131 if (Type == 'U' || Type == 'w')
132 Result = UnknownAddressOrSize;
134 Result = reinterpret_cast<uintptr_t>(base() +
135 Section->PointerToRawData +
138 Result = reinterpret_cast<uintptr_t>(base() + symb->Value);
139 return object_error::success;
142 error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
143 SymbolRef::Type &Result) const {
144 const coff_symbol *symb = toSymb(Symb);
145 Result = SymbolRef::ST_Other;
146 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
147 symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
148 Result = SymbolRef::ST_External;
150 if (symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
151 Result = SymbolRef::ST_Function;
154 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
156 if (Type == 'r' || Type == 'R') {
157 Result = SymbolRef::ST_Data;
161 return object_error::success;
164 error_code COFFObjectFile::isSymbolGlobal(DataRefImpl Symb,
165 bool &Result) const {
166 const coff_symbol *symb = toSymb(Symb);
167 Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL);
168 return object_error::success;
171 error_code COFFObjectFile::isSymbolWeak(DataRefImpl Symb,
172 bool &Result) const {
173 const coff_symbol *symb = toSymb(Symb);
174 Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL);
175 return object_error::success;
178 error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
179 uint64_t &Result) const {
180 // FIXME: Return the correct size. This requires looking at all the symbols
181 // in the same section as this symbol, and looking for either the next
182 // symbol, or the end of the section.
183 const coff_symbol *symb = toSymb(Symb);
184 const coff_section *Section = NULL;
185 if (error_code ec = getSection(symb->SectionNumber, Section))
188 if (error_code ec = getSymbolNMTypeChar(Symb, Type))
190 if (Type == 'U' || Type == 'w')
191 Result = UnknownAddressOrSize;
193 Result = Section->SizeOfRawData - symb->Value;
196 return object_error::success;
199 error_code COFFObjectFile::getSymbolNMTypeChar(DataRefImpl Symb,
200 char &Result) const {
201 const coff_symbol *symb = toSymb(Symb);
203 if (error_code ec = getSymbolName(Symb, name))
205 char ret = StringSwitch<char>(name)
206 .StartsWith(".debug", 'N')
207 .StartsWith(".sxdata", 'N')
212 return object_error::success;
215 uint32_t Characteristics = 0;
216 if (symb->SectionNumber > 0) {
217 const coff_section *Section = NULL;
218 if (error_code ec = getSection(symb->SectionNumber, Section))
220 Characteristics = Section->Characteristics;
223 switch (symb->SectionNumber) {
224 case COFF::IMAGE_SYM_UNDEFINED:
225 // Check storage classes.
226 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
228 return object_error::success; // Don't do ::toupper.
229 } else if (symb->Value != 0) // Check for common symbols.
234 case COFF::IMAGE_SYM_ABSOLUTE:
237 case COFF::IMAGE_SYM_DEBUG:
241 // Check section type.
242 if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
244 else if ( Characteristics & COFF::IMAGE_SCN_MEM_READ
245 && ~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
247 else if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
249 else if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
251 else if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
254 // Check for section symbol.
255 else if ( symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC
260 if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
261 ret = ::toupper(ret);
264 return object_error::success;
267 error_code COFFObjectFile::isSymbolInternal(DataRefImpl Symb,
268 bool &Result) const {
270 return object_error::success;
273 error_code COFFObjectFile::isSymbolAbsolute(DataRefImpl Symb,
274 bool &Result) const {
275 const coff_symbol *symb = toSymb(Symb);
276 Result = symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE;
277 return object_error::success;
280 error_code COFFObjectFile::getSymbolSection(DataRefImpl Symb,
281 section_iterator &Result) const {
282 const coff_symbol *symb = toSymb(Symb);
283 if (symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
284 Result = end_sections();
286 const coff_section *sec = 0;
287 if (error_code ec = getSection(symb->SectionNumber, sec)) return ec;
289 std::memset(&Sec, 0, sizeof(Sec));
290 Sec.p = reinterpret_cast<uintptr_t>(sec);
291 Result = section_iterator(SectionRef(Sec, this));
293 return object_error::success;
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);
309 if (sec->Name[7] == 0)
310 // Null terminated, let ::strlen figure out the length.
313 // Not null terminated, use all 8 bytes.
314 name = StringRef(sec->Name, 8);
316 // Check for string table entry. First byte is '/'.
317 if (name[0] == '/') {
319 name.substr(1).getAsInteger(10, Offset);
320 if (error_code ec = getString(Offset, name))
325 return object_error::success;
328 error_code COFFObjectFile::getSectionAddress(DataRefImpl Sec,
329 uint64_t &Result) const {
330 const coff_section *sec = toSec(Sec);
331 Result = sec->VirtualAddress;
332 return object_error::success;
335 error_code COFFObjectFile::getSectionSize(DataRefImpl Sec,
336 uint64_t &Result) const {
337 const coff_section *sec = toSec(Sec);
338 Result = sec->SizeOfRawData;
339 return object_error::success;
342 error_code COFFObjectFile::getSectionContents(DataRefImpl Sec,
343 StringRef &Result) const {
344 const coff_section *sec = toSec(Sec);
345 // The only thing that we need to verify is that the contents is contained
346 // within the file bounds. We don't need to make sure it doesn't cover other
347 // data, as there's nothing that says that is not allowed.
348 uintptr_t con_start = uintptr_t(base()) + sec->PointerToRawData;
349 uintptr_t con_end = con_start + sec->SizeOfRawData;
350 if (con_end > uintptr_t(Data->getBufferEnd()))
351 return object_error::parse_failed;
352 Result = StringRef(reinterpret_cast<const char*>(con_start),
354 return object_error::success;
357 error_code COFFObjectFile::getSectionAlignment(DataRefImpl Sec,
358 uint64_t &Res) const {
359 const coff_section *sec = toSec(Sec);
361 return object_error::parse_failed;
362 Res = uint64_t(1) << (((sec->Characteristics & 0x00F00000) >> 20) - 1);
363 return object_error::success;
366 error_code COFFObjectFile::isSectionText(DataRefImpl Sec,
367 bool &Result) const {
368 const coff_section *sec = toSec(Sec);
369 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
370 return object_error::success;
373 error_code COFFObjectFile::isSectionData(DataRefImpl Sec,
374 bool &Result) const {
375 const coff_section *sec = toSec(Sec);
376 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
377 return object_error::success;
380 error_code COFFObjectFile::isSectionBSS(DataRefImpl Sec,
381 bool &Result) const {
382 const coff_section *sec = toSec(Sec);
383 Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
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 std::memset(&ret, 0, sizeof(ret));
405 if (sec->NumberOfRelocations == 0)
408 ret.p = reinterpret_cast<uintptr_t>(base() + sec->PointerToRelocations);
410 return relocation_iterator(RelocationRef(ret, this));
413 relocation_iterator COFFObjectFile::getSectionRelEnd(DataRefImpl Sec) const {
414 const coff_section *sec = toSec(Sec);
416 std::memset(&ret, 0, sizeof(ret));
417 if (sec->NumberOfRelocations == 0)
420 ret.p = reinterpret_cast<uintptr_t>(
421 reinterpret_cast<const coff_relocation*>(
422 base() + sec->PointerToRelocations)
423 + sec->NumberOfRelocations);
425 return relocation_iterator(RelocationRef(ret, this));
428 COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &ec)
429 : ObjectFile(Binary::isCOFF, Object, ec)
434 , StringTableSize(0) {
435 // Check that we at least have enough room for a header.
436 if (!checkSize(Data, ec, sizeof(coff_file_header))) return;
438 // The actual starting location of the COFF header in the file. This can be
439 // non-zero in PE/COFF files.
440 uint64_t HeaderStart = 0;
442 // Check if this is a PE/COFF file.
443 if (base()[0] == 0x4d && base()[1] == 0x5a) {
444 // PE/COFF, seek through MS-DOS compatibility stub and 4-byte
445 // PE signature to find 'normal' COFF header.
446 if (!checkSize(Data, ec, 0x3c + 8)) return;
447 HeaderStart = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
448 // Check the PE header. ("PE\0\0")
449 if (std::memcmp(base() + HeaderStart, "PE\0\0", 4) != 0) {
450 ec = object_error::parse_failed;
453 HeaderStart += 4; // Skip the PE Header.
456 Header = reinterpret_cast<const coff_file_header *>(base() + HeaderStart);
457 if (!checkAddr(Data, ec, uintptr_t(Header), sizeof(coff_file_header)))
461 reinterpret_cast<const coff_section *>( base()
463 + sizeof(coff_file_header)
464 + Header->SizeOfOptionalHeader);
465 if (!checkAddr(Data, ec, uintptr_t(SectionTable),
466 Header->NumberOfSections * sizeof(coff_section)))
469 if (Header->PointerToSymbolTable != 0) {
471 reinterpret_cast<const coff_symbol *>(base()
472 + Header->PointerToSymbolTable);
473 if (!checkAddr(Data, ec, uintptr_t(SymbolTable),
474 Header->NumberOfSymbols * sizeof(coff_symbol)))
477 // Find string table.
478 StringTable = reinterpret_cast<const char *>(base())
479 + Header->PointerToSymbolTable
480 + Header->NumberOfSymbols * sizeof(coff_symbol);
481 if (!checkAddr(Data, ec, uintptr_t(StringTable), sizeof(ulittle32_t)))
484 StringTableSize = *reinterpret_cast<const ulittle32_t *>(StringTable);
485 if (!checkAddr(Data, ec, uintptr_t(StringTable), StringTableSize))
487 // Check that the string table is null terminated if has any in it.
488 if (StringTableSize < 4
489 || (StringTableSize > 4 && StringTable[StringTableSize - 1] != 0)) {
490 ec = object_error::parse_failed;
495 ec = object_error::success;
498 symbol_iterator COFFObjectFile::begin_symbols() const {
500 std::memset(&ret, 0, sizeof(DataRefImpl));
501 ret.p = reinterpret_cast<intptr_t>(SymbolTable);
502 return symbol_iterator(SymbolRef(ret, this));
505 symbol_iterator COFFObjectFile::end_symbols() const {
506 // The symbol table ends where the string table begins.
508 std::memset(&ret, 0, sizeof(DataRefImpl));
509 ret.p = reinterpret_cast<intptr_t>(StringTable);
510 return symbol_iterator(SymbolRef(ret, this));
513 section_iterator COFFObjectFile::begin_sections() const {
515 std::memset(&ret, 0, sizeof(DataRefImpl));
516 ret.p = reinterpret_cast<intptr_t>(SectionTable);
517 return section_iterator(SectionRef(ret, this));
520 section_iterator COFFObjectFile::end_sections() const {
522 std::memset(&ret, 0, sizeof(DataRefImpl));
523 ret.p = reinterpret_cast<intptr_t>(SectionTable + Header->NumberOfSections);
524 return section_iterator(SectionRef(ret, this));
527 uint8_t COFFObjectFile::getBytesInAddress() const {
528 return getArch() == Triple::x86_64 ? 8 : 4;
531 StringRef COFFObjectFile::getFileFormatName() const {
532 switch(Header->Machine) {
533 case COFF::IMAGE_FILE_MACHINE_I386:
535 case COFF::IMAGE_FILE_MACHINE_AMD64:
536 return "COFF-x86-64";
538 return "COFF-<unknown arch>";
542 unsigned COFFObjectFile::getArch() const {
543 switch(Header->Machine) {
544 case COFF::IMAGE_FILE_MACHINE_I386:
546 case COFF::IMAGE_FILE_MACHINE_AMD64:
547 return Triple::x86_64;
549 return Triple::UnknownArch;
553 error_code COFFObjectFile::getHeader(const coff_file_header *&Res) const {
555 return object_error::success;
558 error_code COFFObjectFile::getSection(int32_t index,
559 const coff_section *&Result) const {
560 // Check for special index values.
561 if (index == COFF::IMAGE_SYM_UNDEFINED ||
562 index == COFF::IMAGE_SYM_ABSOLUTE ||
563 index == COFF::IMAGE_SYM_DEBUG)
565 else if (index > 0 && index <= Header->NumberOfSections)
566 // We already verified the section table data, so no need to check again.
567 Result = SectionTable + (index - 1);
569 return object_error::parse_failed;
570 return object_error::success;
573 error_code COFFObjectFile::getString(uint32_t offset,
574 StringRef &Result) const {
575 if (StringTableSize <= 4)
576 // Tried to get a string from an empty string table.
577 return object_error::parse_failed;
578 if (offset >= StringTableSize)
579 return object_error::unexpected_eof;
580 Result = StringRef(StringTable + offset);
581 return object_error::success;
584 error_code COFFObjectFile::getSymbol(uint32_t index,
585 const coff_symbol *&Result) const {
586 if (index < Header->NumberOfSymbols)
587 Result = SymbolTable + index;
589 return object_error::parse_failed;
590 return object_error::success;
593 error_code COFFObjectFile::getSymbolName(const coff_symbol *symbol,
594 StringRef &Res) const {
595 // Check for string table entry. First 4 bytes are 0.
596 if (symbol->Name.Offset.Zeroes == 0) {
597 uint32_t Offset = symbol->Name.Offset.Offset;
598 if (error_code ec = getString(Offset, Res))
600 return object_error::success;
603 if (symbol->Name.ShortName[7] == 0)
604 // Null terminated, let ::strlen figure out the length.
605 Res = StringRef(symbol->Name.ShortName);
607 // Not null terminated, use all 8 bytes.
608 Res = StringRef(symbol->Name.ShortName, 8);
609 return object_error::success;
612 const coff_relocation *COFFObjectFile::toRel(DataRefImpl Rel) const {
613 return reinterpret_cast<const coff_relocation*>(Rel.p);
615 error_code COFFObjectFile::getRelocationNext(DataRefImpl Rel,
616 RelocationRef &Res) const {
617 Rel.p = reinterpret_cast<uintptr_t>(
618 reinterpret_cast<const coff_relocation*>(Rel.p) + 1);
619 Res = RelocationRef(Rel, this);
620 return object_error::success;
622 error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
623 uint64_t &Res) const {
624 Res = toRel(Rel)->VirtualAddress;
625 return object_error::success;
627 error_code COFFObjectFile::getRelocationSymbol(DataRefImpl Rel,
628 SymbolRef &Res) const {
629 const coff_relocation* R = toRel(Rel);
631 std::memset(&Symb, 0, sizeof(Symb));
632 Symb.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
633 Res = SymbolRef(Symb, this);
634 return object_error::success;
636 error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
637 uint64_t &Res) const {
638 const coff_relocation* R = toRel(Rel);
640 return object_error::success;
643 #define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
644 case COFF::enum: res = #enum; break;
646 error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
647 SmallVectorImpl<char> &Result) const {
648 const coff_relocation *reloc = toRel(Rel);
650 switch (Header->Machine) {
651 case COFF::IMAGE_FILE_MACHINE_AMD64:
652 switch (reloc->Type) {
653 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE);
654 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR64);
655 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32);
656 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ADDR32NB);
657 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32);
658 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_1);
659 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_2);
660 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_3);
661 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_4);
662 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_REL32_5);
663 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECTION);
664 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL);
665 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SECREL7);
666 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_TOKEN);
667 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SREL32);
668 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_PAIR);
669 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_SSPAN32);
674 case COFF::IMAGE_FILE_MACHINE_I386:
675 switch (reloc->Type) {
676 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE);
677 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR16);
678 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL16);
679 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32);
680 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_DIR32NB);
681 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SEG12);
682 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECTION);
683 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL);
684 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_TOKEN);
685 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_SECREL7);
686 LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_REL32);
694 Result.append(res.begin(), res.end());
695 return object_error::success;
698 #undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME
700 error_code COFFObjectFile::getRelocationAdditionalInfo(DataRefImpl Rel,
701 int64_t &Res) const {
703 return object_error::success;
705 error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
706 SmallVectorImpl<char> &Result) const {
707 const coff_relocation *reloc = toRel(Rel);
708 const coff_symbol *symb = 0;
709 if (error_code ec = getSymbol(reloc->SymbolTableIndex, symb)) return ec;
711 ::memset(&sym, 0, sizeof(sym));
712 sym.p = reinterpret_cast<uintptr_t>(symb);
714 if (error_code ec = getSymbolName(sym, symname)) return ec;
715 Result.append(symname.begin(), symname.end());
716 return object_error::success;
721 ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
723 return new COFFObjectFile(Object, ec);
726 } // end namespace llvm