#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <cctype>
using namespace llvm;
using namespace object;
-using support::ulittle8_t;
using support::ulittle16_t;
using support::ulittle32_t;
+using support::ulittle64_t;
using support::little16_t;
// Returns false if size is greater than the buffer size. And sets ec.
-static bool checkSize(const MemoryBuffer *M, error_code &EC, uint64_t Size) {
- if (M->getBufferSize() < Size) {
+static bool checkSize(MemoryBufferRef M, std::error_code &EC, uint64_t Size) {
+ if (M.getBufferSize() < Size) {
EC = object_error::unexpected_eof;
return false;
}
return true;
}
+static std::error_code checkOffset(MemoryBufferRef M, uintptr_t Addr,
+ const uint64_t Size) {
+ if (Addr + Size < Addr || Addr + Size < Size ||
+ Addr + Size > uintptr_t(M.getBufferEnd()) ||
+ Addr < uintptr_t(M.getBufferStart())) {
+ return object_error::unexpected_eof;
+ }
+ return object_error::success;
+}
+
// Sets Obj unless any bytes in [addr, addr + size) fall outsize of m.
// Returns unexpected_eof if error.
-template<typename T>
-static error_code getObject(const T *&Obj, const MemoryBuffer *M,
- const uint8_t *Ptr, const size_t Size = sizeof(T)) {
+template <typename T>
+static std::error_code getObject(const T *&Obj, MemoryBufferRef M,
+ const void *Ptr,
+ const uint64_t Size = sizeof(T)) {
uintptr_t Addr = uintptr_t(Ptr);
- if (Addr + Size < Addr ||
- Addr + Size < Size ||
- Addr + Size > uintptr_t(M->getBufferEnd())) {
- return object_error::unexpected_eof;
- }
+ if (std::error_code EC = checkOffset(M, Addr, Size))
+ return EC;
Obj = reinterpret_cast<const T *>(Addr);
return object_error::success;
}
return false;
}
-const coff_symbol *COFFObjectFile::toSymb(DataRefImpl Ref) const {
- const coff_symbol *Addr = reinterpret_cast<const coff_symbol*>(Ref.p);
+template <typename coff_symbol_type>
+const coff_symbol_type *COFFObjectFile::toSymb(DataRefImpl Ref) const {
+ const coff_symbol_type *Addr =
+ reinterpret_cast<const coff_symbol_type *>(Ref.p);
-# ifndef NDEBUG
+ assert(!checkOffset(Data, uintptr_t(Addr), sizeof(*Addr)));
+#ifndef NDEBUG
// Verify that the symbol points to a valid entry in the symbol table.
uintptr_t Offset = uintptr_t(Addr) - uintptr_t(base());
- if (Offset < COFFHeader->PointerToSymbolTable
- || Offset >= COFFHeader->PointerToSymbolTable
- + (COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
- report_fatal_error("Symbol was outside of symbol table.");
- assert((Offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
- == 0 && "Symbol did not point to the beginning of a symbol");
-# endif
+ assert((Offset - getPointerToSymbolTable()) % sizeof(coff_symbol_type) == 0 &&
+ "Symbol did not point to the beginning of a symbol");
+#endif
return Addr;
}
# ifndef NDEBUG
// Verify that the section points to a valid entry in the section table.
- if (Addr < SectionTable
- || Addr >= (SectionTable + COFFHeader->NumberOfSections))
+ if (Addr < SectionTable || Addr >= (SectionTable + getNumberOfSections()))
report_fatal_error("Section was outside of section table.");
uintptr_t Offset = uintptr_t(Addr) - uintptr_t(SectionTable);
}
void COFFObjectFile::moveSymbolNext(DataRefImpl &Ref) const {
- const coff_symbol *Symb = toSymb(Ref);
- Symb += 1 + Symb->NumberOfAuxSymbols;
- Ref.p = reinterpret_cast<uintptr_t>(Symb);
+ auto End = reinterpret_cast<uintptr_t>(StringTable);
+ if (SymbolTable16) {
+ const coff_symbol16 *Symb = toSymb<coff_symbol16>(Ref);
+ Symb += 1 + Symb->NumberOfAuxSymbols;
+ Ref.p = std::min(reinterpret_cast<uintptr_t>(Symb), End);
+ } else if (SymbolTable32) {
+ const coff_symbol32 *Symb = toSymb<coff_symbol32>(Ref);
+ Symb += 1 + Symb->NumberOfAuxSymbols;
+ Ref.p = std::min(reinterpret_cast<uintptr_t>(Symb), End);
+ } else {
+ llvm_unreachable("no symbol table pointer!");
+ }
}
-error_code COFFObjectFile::getSymbolName(DataRefImpl Ref,
- StringRef &Result) const {
- const coff_symbol *Symb = toSymb(Ref);
+std::error_code COFFObjectFile::getSymbolName(DataRefImpl Ref,
+ StringRef &Result) const {
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
return getSymbolName(Symb, Result);
}
-error_code COFFObjectFile::getSymbolFileOffset(DataRefImpl Ref,
- uint64_t &Result) const {
- const coff_symbol *Symb = toSymb(Ref);
- const coff_section *Section = NULL;
- if (error_code EC = getSection(Symb->SectionNumber, Section))
- return EC;
+std::error_code COFFObjectFile::getSymbolAddress(DataRefImpl Ref,
+ uint64_t &Result) const {
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
- if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
+ if (Symb.isAnyUndefined()) {
Result = UnknownAddressOrSize;
- else if (Section)
- Result = Section->PointerToRawData + Symb->Value;
- else
- Result = Symb->Value;
- return object_error::success;
-}
+ return object_error::success;
+ }
+ if (Symb.isCommon()) {
+ Result = UnknownAddressOrSize;
+ return object_error::success;
+ }
+ int32_t SectionNumber = Symb.getSectionNumber();
+ if (!COFF::isReservedSectionNumber(SectionNumber)) {
+ const coff_section *Section = nullptr;
+ if (std::error_code EC = getSection(SectionNumber, Section))
+ return EC;
-error_code COFFObjectFile::getSymbolAddress(DataRefImpl Ref,
- uint64_t &Result) const {
- const coff_symbol *Symb = toSymb(Ref);
- const coff_section *Section = NULL;
- if (error_code EC = getSection(Symb->SectionNumber, Section))
- return EC;
+ Result = Section->VirtualAddress + Symb.getValue();
+ return object_error::success;
+ }
- if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
- Result = UnknownAddressOrSize;
- else if (Section)
- Result = Section->VirtualAddress + Symb->Value;
- else
- Result = Symb->Value;
+ Result = Symb.getValue();
return object_error::success;
}
-error_code COFFObjectFile::getSymbolType(DataRefImpl Ref,
- SymbolRef::Type &Result) const {
- const coff_symbol *Symb = toSymb(Ref);
+std::error_code COFFObjectFile::getSymbolType(DataRefImpl Ref,
+ SymbolRef::Type &Result) const {
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
+ int32_t SectionNumber = Symb.getSectionNumber();
Result = SymbolRef::ST_Other;
- if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
+
+ if (Symb.isAnyUndefined()) {
Result = SymbolRef::ST_Unknown;
- } else if (Symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
+ } else if (Symb.isFunctionDefinition()) {
Result = SymbolRef::ST_Function;
- } else {
- uint32_t Characteristics = 0;
- if (Symb->SectionNumber > 0) {
- const coff_section *Section = NULL;
- if (error_code EC = getSection(Symb->SectionNumber, Section))
- return EC;
- Characteristics = Section->Characteristics;
- }
- if (Characteristics & COFF::IMAGE_SCN_MEM_READ &&
- ~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
+ } else if (Symb.isCommon()) {
+ Result = SymbolRef::ST_Data;
+ } else if (Symb.isFileRecord()) {
+ Result = SymbolRef::ST_File;
+ } else if (SectionNumber == COFF::IMAGE_SYM_DEBUG) {
+ Result = SymbolRef::ST_Debug;
+ } else if (!COFF::isReservedSectionNumber(SectionNumber)) {
+ const coff_section *Section = nullptr;
+ if (std::error_code EC = getSection(SectionNumber, Section))
+ return EC;
+ uint32_t Characteristics = Section->Characteristics;
+ if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
+ Result = SymbolRef::ST_Function;
+ else if (Characteristics & (COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA))
Result = SymbolRef::ST_Data;
}
return object_error::success;
}
uint32_t COFFObjectFile::getSymbolFlags(DataRefImpl Ref) const {
- const coff_symbol *Symb = toSymb(Ref);
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
uint32_t Result = SymbolRef::SF_None;
- // TODO: Correctly set SF_FormatSpecific, SF_Common
-
- if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
- if (Symb->Value == 0)
- Result |= SymbolRef::SF_Undefined;
- else
- Result |= SymbolRef::SF_Common;
- }
-
-
- // TODO: This are certainly too restrictive.
- if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
+ if (Symb.isExternal() || Symb.isWeakExternal())
Result |= SymbolRef::SF_Global;
- if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
+ if (Symb.isWeakExternal())
Result |= SymbolRef::SF_Weak;
- if (Symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
+ if (Symb.getSectionNumber() == COFF::IMAGE_SYM_ABSOLUTE)
Result |= SymbolRef::SF_Absolute;
+ if (Symb.isFileRecord())
+ Result |= SymbolRef::SF_FormatSpecific;
+
+ if (Symb.isSectionDefinition())
+ Result |= SymbolRef::SF_FormatSpecific;
+
+ if (Symb.isCommon())
+ Result |= SymbolRef::SF_Common;
+
+ if (Symb.isAnyUndefined())
+ Result |= SymbolRef::SF_Undefined;
+
return Result;
}
-error_code COFFObjectFile::getSymbolSize(DataRefImpl Ref,
- uint64_t &Result) const {
- // FIXME: Return the correct size. This requires looking at all the symbols
- // in the same section as this symbol, and looking for either the next
- // symbol, or the end of the section.
- const coff_symbol *Symb = toSymb(Ref);
- const coff_section *Section = NULL;
- if (error_code EC = getSection(Symb->SectionNumber, Section))
- return EC;
+std::error_code COFFObjectFile::getSymbolSize(DataRefImpl Ref,
+ uint64_t &Result) const {
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
- if (Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
+ if (Symb.isAnyUndefined()) {
Result = UnknownAddressOrSize;
- else if (Section)
- Result = Section->SizeOfRawData - Symb->Value;
- else
+ return object_error::success;
+ }
+ if (Symb.isCommon()) {
+ Result = Symb.getValue();
+ return object_error::success;
+ }
+
+ // Let's attempt to get the size of the symbol by looking at the address of
+ // the symbol after the symbol in question.
+ uint64_t SymbAddr;
+ if (std::error_code EC = getSymbolAddress(Ref, SymbAddr))
+ return EC;
+ int32_t SectionNumber = Symb.getSectionNumber();
+ if (COFF::isReservedSectionNumber(SectionNumber)) {
+ // Absolute and debug symbols aren't sorted in any interesting way.
Result = 0;
+ return object_error::success;
+ }
+ const section_iterator SecEnd = section_end();
+ uint64_t AfterAddr = UnknownAddressOrSize;
+ for (const symbol_iterator &SymbI : symbols()) {
+ section_iterator SecI = SecEnd;
+ if (std::error_code EC = SymbI->getSection(SecI))
+ return EC;
+ // Check the symbol's section, skip it if it's in the wrong section.
+ // First, make sure it is in any section.
+ if (SecI == SecEnd)
+ continue;
+ // Second, make sure it is in the same section as the symbol in question.
+ if (!sectionContainsSymbol(SecI->getRawDataRefImpl(), Ref))
+ continue;
+ uint64_t Addr;
+ if (std::error_code EC = SymbI->getAddress(Addr))
+ return EC;
+ // We want to compare our symbol in question with the closest possible
+ // symbol that comes after.
+ if (AfterAddr > Addr && Addr > SymbAddr)
+ AfterAddr = Addr;
+ }
+ if (AfterAddr == UnknownAddressOrSize) {
+ // No symbol comes after this one, assume that everything after our symbol
+ // is part of it.
+ const coff_section *Section = nullptr;
+ if (std::error_code EC = getSection(SectionNumber, Section))
+ return EC;
+ Result = Section->SizeOfRawData - Symb.getValue();
+ } else {
+ // Take the difference between our symbol and the symbol that comes after
+ // our symbol.
+ Result = AfterAddr - SymbAddr;
+ }
+
return object_error::success;
}
-error_code COFFObjectFile::getSymbolSection(DataRefImpl Ref,
- section_iterator &Result) const {
- const coff_symbol *Symb = toSymb(Ref);
- if (Symb->SectionNumber <= COFF::IMAGE_SYM_UNDEFINED)
+std::error_code
+COFFObjectFile::getSymbolSection(DataRefImpl Ref,
+ section_iterator &Result) const {
+ COFFSymbolRef Symb = getCOFFSymbol(Ref);
+ if (COFF::isReservedSectionNumber(Symb.getSectionNumber())) {
Result = section_end();
- else {
- const coff_section *Sec = 0;
- if (error_code EC = getSection(Symb->SectionNumber, Sec)) return EC;
+ } else {
+ const coff_section *Sec = nullptr;
+ if (std::error_code EC = getSection(Symb.getSectionNumber(), Sec))
+ return EC;
DataRefImpl Ref;
Ref.p = reinterpret_cast<uintptr_t>(Sec);
Result = section_iterator(SectionRef(Ref, this));
return object_error::success;
}
-error_code COFFObjectFile::getSymbolValue(DataRefImpl Ref,
- uint64_t &Val) const {
- report_fatal_error("getSymbolValue unimplemented in COFFObjectFile");
-}
-
void COFFObjectFile::moveSectionNext(DataRefImpl &Ref) const {
const coff_section *Sec = toSec(Ref);
Sec += 1;
Ref.p = reinterpret_cast<uintptr_t>(Sec);
}
-error_code COFFObjectFile::getSectionName(DataRefImpl Ref,
- StringRef &Result) const {
+std::error_code COFFObjectFile::getSectionName(DataRefImpl Ref,
+ StringRef &Result) const {
const coff_section *Sec = toSec(Ref);
return getSectionName(Sec, Result);
}
-error_code COFFObjectFile::getSectionAddress(DataRefImpl Ref,
- uint64_t &Result) const {
+uint64_t COFFObjectFile::getSectionAddress(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- Result = Sec->VirtualAddress;
- return object_error::success;
+ return Sec->VirtualAddress;
}
-error_code COFFObjectFile::getSectionSize(DataRefImpl Ref,
- uint64_t &Result) const {
- const coff_section *Sec = toSec(Ref);
- Result = Sec->SizeOfRawData;
- return object_error::success;
+uint64_t COFFObjectFile::getSectionSize(DataRefImpl Ref) const {
+ return getSectionSize(toSec(Ref));
}
-error_code COFFObjectFile::getSectionContents(DataRefImpl Ref,
- StringRef &Result) const {
+std::error_code COFFObjectFile::getSectionContents(DataRefImpl Ref,
+ StringRef &Result) const {
const coff_section *Sec = toSec(Ref);
ArrayRef<uint8_t> Res;
- error_code EC = getSectionContents(Sec, Res);
+ std::error_code EC = getSectionContents(Sec, Res);
Result = StringRef(reinterpret_cast<const char*>(Res.data()), Res.size());
return EC;
}
-error_code COFFObjectFile::getSectionAlignment(DataRefImpl Ref,
- uint64_t &Res) const {
+uint64_t COFFObjectFile::getSectionAlignment(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- if (!Sec)
- return object_error::parse_failed;
- Res = uint64_t(1) << (((Sec->Characteristics & 0x00F00000) >> 20) - 1);
- return object_error::success;
+ return uint64_t(1) << (((Sec->Characteristics & 0x00F00000) >> 20) - 1);
}
-error_code COFFObjectFile::isSectionText(DataRefImpl Ref,
- bool &Result) const {
+bool COFFObjectFile::isSectionText(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
- return object_error::success;
+ return Sec->Characteristics & COFF::IMAGE_SCN_CNT_CODE;
}
-error_code COFFObjectFile::isSectionData(DataRefImpl Ref,
- bool &Result) const {
+bool COFFObjectFile::isSectionData(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
- return object_error::success;
+ return Sec->Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA;
}
-error_code COFFObjectFile::isSectionBSS(DataRefImpl Ref,
- bool &Result) const {
+bool COFFObjectFile::isSectionBSS(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
- return object_error::success;
+ return Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
}
-error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Ref,
- bool &Result) const {
- // FIXME: Unimplemented
- Result = true;
- return object_error::success;
+bool COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Ref) const {
+ // Sections marked 'Info', 'Remove', or 'Discardable' aren't required for
+ // execution.
+ const coff_section *Sec = toSec(Ref);
+ return !(Sec->Characteristics &
+ (COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE |
+ COFF::IMAGE_SCN_MEM_DISCARDABLE));
}
-error_code COFFObjectFile::isSectionVirtual(DataRefImpl Ref,
- bool &Result) const {
+bool COFFObjectFile::isSectionVirtual(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
- Result = Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
- return object_error::success;
+ return Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
}
-error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Ref,
- bool &Result) const {
- // FIXME: Unimplemented.
- Result = false;
- return object_error::success;
+bool COFFObjectFile::isSectionZeroInit(DataRefImpl Ref) const {
+ const coff_section *Sec = toSec(Ref);
+ return Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
}
-error_code COFFObjectFile::isSectionReadOnlyData(DataRefImpl Ref,
- bool &Result) const {
- // FIXME: Unimplemented.
- Result = false;
- return object_error::success;
+bool COFFObjectFile::isSectionReadOnlyData(DataRefImpl Ref) const {
+ const coff_section *Sec = toSec(Ref);
+ // Check if it's any sort of data section.
+ if (!(Sec->Characteristics & (COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)))
+ return false;
+ // If it's writable or executable or contains code, it isn't read-only data.
+ if (Sec->Characteristics &
+ (COFF::IMAGE_SCN_CNT_CODE | COFF::IMAGE_SCN_MEM_EXECUTE |
+ COFF::IMAGE_SCN_MEM_WRITE))
+ return false;
+ return true;
}
-error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl SecRef,
- DataRefImpl SymbRef,
- bool &Result) const {
+bool COFFObjectFile::sectionContainsSymbol(DataRefImpl SecRef,
+ DataRefImpl SymbRef) const {
const coff_section *Sec = toSec(SecRef);
- const coff_symbol *Symb = toSymb(SymbRef);
- const coff_section *SymbSec = 0;
- if (error_code EC = getSection(Symb->SectionNumber, SymbSec)) return EC;
- if (SymbSec == Sec)
- Result = true;
- else
- Result = false;
- return object_error::success;
+ COFFSymbolRef Symb = getCOFFSymbol(SymbRef);
+ int32_t SecNumber = (Sec - SectionTable) + 1;
+ return SecNumber == Symb.getSectionNumber();
+}
+
+static uint32_t getNumberOfRelocations(const coff_section *Sec,
+ MemoryBufferRef M, const uint8_t *base) {
+ // The field for the number of relocations in COFF section table is only
+ // 16-bit wide. If a section has more than 65535 relocations, 0xFFFF is set to
+ // NumberOfRelocations field, and the actual relocation count is stored in the
+ // VirtualAddress field in the first relocation entry.
+ if (Sec->hasExtendedRelocations()) {
+ const coff_relocation *FirstReloc;
+ if (getObject(FirstReloc, M, reinterpret_cast<const coff_relocation*>(
+ base + Sec->PointerToRelocations)))
+ return 0;
+ return FirstReloc->VirtualAddress;
+ }
+ return Sec->NumberOfRelocations;
+}
+
+static const coff_relocation *
+getFirstReloc(const coff_section *Sec, MemoryBufferRef M, const uint8_t *Base) {
+ uint64_t NumRelocs = getNumberOfRelocations(Sec, M, Base);
+ if (!NumRelocs)
+ return nullptr;
+ auto begin = reinterpret_cast<const coff_relocation *>(
+ Base + Sec->PointerToRelocations);
+ if (Sec->hasExtendedRelocations()) {
+ // Skip the first relocation entry repurposed to store the number of
+ // relocations.
+ begin++;
+ }
+ if (checkOffset(M, uintptr_t(begin), sizeof(coff_relocation) * NumRelocs))
+ return nullptr;
+ return begin;
}
relocation_iterator COFFObjectFile::section_rel_begin(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
+ const coff_relocation *begin = getFirstReloc(Sec, Data, base());
DataRefImpl Ret;
- if (Sec->NumberOfRelocations == 0)
- Ret.p = 0;
- else
- Ret.p = reinterpret_cast<uintptr_t>(base() + Sec->PointerToRelocations);
-
+ Ret.p = reinterpret_cast<uintptr_t>(begin);
return relocation_iterator(RelocationRef(Ret, this));
}
relocation_iterator COFFObjectFile::section_rel_end(DataRefImpl Ref) const {
const coff_section *Sec = toSec(Ref);
+ const coff_relocation *I = getFirstReloc(Sec, Data, base());
+ if (I)
+ I += getNumberOfRelocations(Sec, Data, base());
DataRefImpl Ret;
- if (Sec->NumberOfRelocations == 0)
- Ret.p = 0;
- else
- Ret.p = reinterpret_cast<uintptr_t>(
- reinterpret_cast<const coff_relocation*>(
- base() + Sec->PointerToRelocations)
- + Sec->NumberOfRelocations);
-
+ Ret.p = reinterpret_cast<uintptr_t>(I);
return relocation_iterator(RelocationRef(Ret, this));
}
// Initialize the pointer to the symbol table.
-error_code COFFObjectFile::initSymbolTablePtr() {
- if (error_code EC = getObject(
- SymbolTable, Data, base() + COFFHeader->PointerToSymbolTable,
- COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
- return EC;
+std::error_code COFFObjectFile::initSymbolTablePtr() {
+ if (COFFHeader)
+ if (std::error_code EC = getObject(
+ SymbolTable16, Data, base() + getPointerToSymbolTable(),
+ (uint64_t)getNumberOfSymbols() * getSymbolTableEntrySize()))
+ return EC;
+
+ if (COFFBigObjHeader)
+ if (std::error_code EC = getObject(
+ SymbolTable32, Data, base() + getPointerToSymbolTable(),
+ (uint64_t)getNumberOfSymbols() * getSymbolTableEntrySize()))
+ return EC;
// Find string table. The first four byte of the string table contains the
// total size of the string table, including the size field itself. If the
// string table is empty, the value of the first four byte would be 4.
- const uint8_t *StringTableAddr =
- base() + COFFHeader->PointerToSymbolTable +
- COFFHeader->NumberOfSymbols * sizeof(coff_symbol);
+ uint32_t StringTableOffset = getPointerToSymbolTable() +
+ getNumberOfSymbols() * getSymbolTableEntrySize();
+ const uint8_t *StringTableAddr = base() + StringTableOffset;
const ulittle32_t *StringTableSizePtr;
- if (error_code EC = getObject(StringTableSizePtr, Data, StringTableAddr))
+ if (std::error_code EC = getObject(StringTableSizePtr, Data, StringTableAddr))
return EC;
StringTableSize = *StringTableSizePtr;
- if (error_code EC =
- getObject(StringTable, Data, StringTableAddr, StringTableSize))
+ if (std::error_code EC =
+ getObject(StringTable, Data, StringTableAddr, StringTableSize))
return EC;
// Treat table sizes < 4 as empty because contrary to the PECOFF spec, some
}
// Returns the file offset for the given VA.
-error_code COFFObjectFile::getVaPtr(uint64_t Addr, uintptr_t &Res) const {
+std::error_code COFFObjectFile::getVaPtr(uint64_t Addr, uintptr_t &Res) const {
uint64_t ImageBase = PE32Header ? (uint64_t)PE32Header->ImageBase
: (uint64_t)PE32PlusHeader->ImageBase;
uint64_t Rva = Addr - ImageBase;
}
// Returns the file offset for the given RVA.
-error_code COFFObjectFile::getRvaPtr(uint32_t Addr, uintptr_t &Res) const {
- for (section_iterator I = section_begin(), E = section_end(); I != E;
- ++I) {
- const coff_section *Section = getCOFFSection(I);
+std::error_code COFFObjectFile::getRvaPtr(uint32_t Addr, uintptr_t &Res) const {
+ for (const SectionRef &S : sections()) {
+ const coff_section *Section = getCOFFSection(S);
uint32_t SectionStart = Section->VirtualAddress;
uint32_t SectionEnd = Section->VirtualAddress + Section->VirtualSize;
if (SectionStart <= Addr && Addr < SectionEnd) {
// Returns hint and name fields, assuming \p Rva is pointing to a Hint/Name
// table entry.
-error_code COFFObjectFile::
-getHintName(uint32_t Rva, uint16_t &Hint, StringRef &Name) const {
+std::error_code COFFObjectFile::getHintName(uint32_t Rva, uint16_t &Hint,
+ StringRef &Name) const {
uintptr_t IntPtr = 0;
- if (error_code EC = getRvaPtr(Rva, IntPtr))
+ if (std::error_code EC = getRvaPtr(Rva, IntPtr))
return EC;
const uint8_t *Ptr = reinterpret_cast<const uint8_t *>(IntPtr);
Hint = *reinterpret_cast<const ulittle16_t *>(Ptr);
}
// Find the import table.
-error_code COFFObjectFile::initImportTablePtr() {
+std::error_code COFFObjectFile::initImportTablePtr() {
// First, we get the RVA of the import table. If the file lacks a pointer to
// the import table, do nothing.
const data_directory *DataEntry;
return object_error::success;
uint32_t ImportTableRva = DataEntry->RelativeVirtualAddress;
+ // -1 because the last entry is the null entry.
NumberOfImportDirectory = DataEntry->Size /
- sizeof(import_directory_table_entry);
+ sizeof(import_directory_table_entry) - 1;
// Find the section that contains the RVA. This is needed because the RVA is
// the import table's memory address which is different from its file offset.
uintptr_t IntPtr = 0;
- if (error_code EC = getRvaPtr(ImportTableRva, IntPtr))
+ if (std::error_code EC = getRvaPtr(ImportTableRva, IntPtr))
return EC;
ImportDirectory = reinterpret_cast<
const import_directory_table_entry *>(IntPtr);
return object_error::success;
}
+// Initializes DelayImportDirectory and NumberOfDelayImportDirectory.
+std::error_code COFFObjectFile::initDelayImportTablePtr() {
+ const data_directory *DataEntry;
+ if (getDataDirectory(COFF::DELAY_IMPORT_DESCRIPTOR, DataEntry))
+ return object_error::success;
+ if (DataEntry->RelativeVirtualAddress == 0)
+ return object_error::success;
+
+ uint32_t RVA = DataEntry->RelativeVirtualAddress;
+ NumberOfDelayImportDirectory = DataEntry->Size /
+ sizeof(delay_import_directory_table_entry) - 1;
+
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = getRvaPtr(RVA, IntPtr))
+ return EC;
+ DelayImportDirectory = reinterpret_cast<
+ const delay_import_directory_table_entry *>(IntPtr);
+ return object_error::success;
+}
+
// Find the export table.
-error_code COFFObjectFile::initExportTablePtr() {
+std::error_code COFFObjectFile::initExportTablePtr() {
// First, we get the RVA of the export table. If the file lacks a pointer to
// the export table, do nothing.
const data_directory *DataEntry;
uint32_t ExportTableRva = DataEntry->RelativeVirtualAddress;
uintptr_t IntPtr = 0;
- if (error_code EC = getRvaPtr(ExportTableRva, IntPtr))
+ if (std::error_code EC = getRvaPtr(ExportTableRva, IntPtr))
return EC;
ExportDirectory =
reinterpret_cast<const export_directory_table_entry *>(IntPtr);
return object_error::success;
}
-COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &EC,
- bool BufferOwned)
- : ObjectFile(Binary::ID_COFF, Object, BufferOwned), COFFHeader(0),
- PE32Header(0), PE32PlusHeader(0), DataDirectory(0), SectionTable(0),
- SymbolTable(0), StringTable(0), StringTableSize(0), ImportDirectory(0),
- NumberOfImportDirectory(0), ExportDirectory(0) {
+std::error_code COFFObjectFile::initBaseRelocPtr() {
+ const data_directory *DataEntry;
+ if (getDataDirectory(COFF::BASE_RELOCATION_TABLE, DataEntry))
+ return object_error::success;
+ if (DataEntry->RelativeVirtualAddress == 0)
+ return object_error::success;
+
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = getRvaPtr(DataEntry->RelativeVirtualAddress, IntPtr))
+ return EC;
+ BaseRelocHeader = reinterpret_cast<const coff_base_reloc_block_header *>(
+ IntPtr);
+ BaseRelocEnd = reinterpret_cast<coff_base_reloc_block_header *>(
+ IntPtr + DataEntry->Size);
+ return object_error::success;
+}
+
+COFFObjectFile::COFFObjectFile(MemoryBufferRef Object, std::error_code &EC)
+ : ObjectFile(Binary::ID_COFF, Object), COFFHeader(nullptr),
+ COFFBigObjHeader(nullptr), PE32Header(nullptr), PE32PlusHeader(nullptr),
+ DataDirectory(nullptr), SectionTable(nullptr), SymbolTable16(nullptr),
+ SymbolTable32(nullptr), StringTable(nullptr), StringTableSize(0),
+ ImportDirectory(nullptr), NumberOfImportDirectory(0),
+ DelayImportDirectory(nullptr), NumberOfDelayImportDirectory(0),
+ ExportDirectory(nullptr), BaseRelocHeader(nullptr),
+ BaseRelocEnd(nullptr) {
// Check that we at least have enough room for a header.
- if (!checkSize(Data, EC, sizeof(coff_file_header))) return;
+ if (!checkSize(Data, EC, sizeof(coff_file_header)))
+ return;
// The current location in the file where we are looking at.
uint64_t CurPtr = 0;
bool HasPEHeader = false;
// Check if this is a PE/COFF file.
- if (base()[0] == 0x4d && base()[1] == 0x5a) {
+ if (checkSize(Data, EC, sizeof(dos_header) + sizeof(COFF::PEMagic))) {
// PE/COFF, seek through MS-DOS compatibility stub and 4-byte
// PE signature to find 'normal' COFF header.
- if (!checkSize(Data, EC, 0x3c + 8)) return;
- CurPtr = *reinterpret_cast<const ulittle16_t *>(base() + 0x3c);
- // Check the PE magic bytes. ("PE\0\0")
- if (std::memcmp(base() + CurPtr, "PE\0\0", 4) != 0) {
- EC = object_error::parse_failed;
- return;
+ const auto *DH = reinterpret_cast<const dos_header *>(base());
+ if (DH->Magic[0] == 'M' && DH->Magic[1] == 'Z') {
+ CurPtr = DH->AddressOfNewExeHeader;
+ // Check the PE magic bytes. ("PE\0\0")
+ if (memcmp(base() + CurPtr, COFF::PEMagic, sizeof(COFF::PEMagic)) != 0) {
+ EC = object_error::parse_failed;
+ return;
+ }
+ CurPtr += sizeof(COFF::PEMagic); // Skip the PE magic bytes.
+ HasPEHeader = true;
}
- CurPtr += 4; // Skip the PE magic bytes.
- HasPEHeader = true;
}
if ((EC = getObject(COFFHeader, Data, base() + CurPtr)))
return;
- CurPtr += sizeof(coff_file_header);
+
+ // It might be a bigobj file, let's check. Note that COFF bigobj and COFF
+ // import libraries share a common prefix but bigobj is more restrictive.
+ if (!HasPEHeader && COFFHeader->Machine == COFF::IMAGE_FILE_MACHINE_UNKNOWN &&
+ COFFHeader->NumberOfSections == uint16_t(0xffff) &&
+ checkSize(Data, EC, sizeof(coff_bigobj_file_header))) {
+ if ((EC = getObject(COFFBigObjHeader, Data, base() + CurPtr)))
+ return;
+
+ // Verify that we are dealing with bigobj.
+ if (COFFBigObjHeader->Version >= COFF::BigObjHeader::MinBigObjectVersion &&
+ std::memcmp(COFFBigObjHeader->UUID, COFF::BigObjMagic,
+ sizeof(COFF::BigObjMagic)) == 0) {
+ COFFHeader = nullptr;
+ CurPtr += sizeof(coff_bigobj_file_header);
+ } else {
+ // It's not a bigobj.
+ COFFBigObjHeader = nullptr;
+ }
+ }
+ if (COFFHeader) {
+ // The prior checkSize call may have failed. This isn't a hard error
+ // because we were just trying to sniff out bigobj.
+ EC = object_error::success;
+ CurPtr += sizeof(coff_file_header);
+
+ if (COFFHeader->isImportLibrary())
+ return;
+ }
if (HasPEHeader) {
const pe32_header *Header;
const uint8_t *DataDirAddr;
uint64_t DataDirSize;
- if (Header->Magic == 0x10b) {
+ if (Header->Magic == COFF::PE32Header::PE32) {
PE32Header = Header;
DataDirAddr = base() + CurPtr + sizeof(pe32_header);
DataDirSize = sizeof(data_directory) * PE32Header->NumberOfRvaAndSize;
- } else if (Header->Magic == 0x20b) {
+ } else if (Header->Magic == COFF::PE32Header::PE32_PLUS) {
PE32PlusHeader = reinterpret_cast<const pe32plus_header *>(Header);
DataDirAddr = base() + CurPtr + sizeof(pe32plus_header);
DataDirSize = sizeof(data_directory) * PE32PlusHeader->NumberOfRvaAndSize;
CurPtr += COFFHeader->SizeOfOptionalHeader;
}
- if (COFFHeader->isImportLibrary())
- return;
-
if ((EC = getObject(SectionTable, Data, base() + CurPtr,
- COFFHeader->NumberOfSections * sizeof(coff_section))))
+ (uint64_t)getNumberOfSections() * sizeof(coff_section))))
return;
// Initialize the pointer to the symbol table.
- if (COFFHeader->PointerToSymbolTable != 0)
+ if (getPointerToSymbolTable() != 0) {
if ((EC = initSymbolTablePtr()))
return;
+ } else {
+ // We had better not have any symbols if we don't have a symbol table.
+ if (getNumberOfSymbols() != 0) {
+ EC = object_error::parse_failed;
+ return;
+ }
+ }
// Initialize the pointer to the beginning of the import table.
if ((EC = initImportTablePtr()))
return;
+ if ((EC = initDelayImportTablePtr()))
+ return;
// Initialize the pointer to the export table.
if ((EC = initExportTablePtr()))
return;
+ // Initialize the pointer to the base relocation table.
+ if ((EC = initBaseRelocPtr()))
+ return;
+
EC = object_error::success;
}
basic_symbol_iterator COFFObjectFile::symbol_begin_impl() const {
DataRefImpl Ret;
- Ret.p = reinterpret_cast<uintptr_t>(SymbolTable);
+ Ret.p = getSymbolTable();
return basic_symbol_iterator(SymbolRef(Ret, this));
}
return basic_symbol_iterator(SymbolRef(Ret, this));
}
-library_iterator COFFObjectFile::needed_library_begin() const {
- // TODO: implement
- report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
-}
-
-library_iterator COFFObjectFile::needed_library_end() const {
- // TODO: implement
- report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
-}
-
-StringRef COFFObjectFile::getLoadName() const {
- // COFF does not have this field.
- return "";
-}
-
import_directory_iterator COFFObjectFile::import_directory_begin() const {
return import_directory_iterator(
ImportDirectoryEntryRef(ImportDirectory, 0, this));
ImportDirectoryEntryRef(ImportDirectory, NumberOfImportDirectory, this));
}
+delay_import_directory_iterator
+COFFObjectFile::delay_import_directory_begin() const {
+ return delay_import_directory_iterator(
+ DelayImportDirectoryEntryRef(DelayImportDirectory, 0, this));
+}
+
+delay_import_directory_iterator
+COFFObjectFile::delay_import_directory_end() const {
+ return delay_import_directory_iterator(
+ DelayImportDirectoryEntryRef(
+ DelayImportDirectory, NumberOfDelayImportDirectory, this));
+}
+
export_directory_iterator COFFObjectFile::export_directory_begin() const {
return export_directory_iterator(
ExportDirectoryEntryRef(ExportDirectory, 0, this));
}
export_directory_iterator COFFObjectFile::export_directory_end() const {
- if (ExportDirectory == 0)
- return export_directory_iterator(ExportDirectoryEntryRef(0, 0, this));
+ if (!ExportDirectory)
+ return export_directory_iterator(ExportDirectoryEntryRef(nullptr, 0, this));
ExportDirectoryEntryRef Ref(ExportDirectory,
ExportDirectory->AddressTableEntries, this);
return export_directory_iterator(Ref);
section_iterator COFFObjectFile::section_end() const {
DataRefImpl Ret;
- int NumSections = COFFHeader->isImportLibrary()
- ? 0 : COFFHeader->NumberOfSections;
+ int NumSections =
+ COFFHeader && COFFHeader->isImportLibrary() ? 0 : getNumberOfSections();
Ret.p = reinterpret_cast<uintptr_t>(SectionTable + NumSections);
return section_iterator(SectionRef(Ret, this));
}
+base_reloc_iterator COFFObjectFile::base_reloc_begin() const {
+ return base_reloc_iterator(BaseRelocRef(BaseRelocHeader, this));
+}
+
+base_reloc_iterator COFFObjectFile::base_reloc_end() const {
+ return base_reloc_iterator(BaseRelocRef(BaseRelocEnd, this));
+}
+
uint8_t COFFObjectFile::getBytesInAddress() const {
return getArch() == Triple::x86_64 ? 8 : 4;
}
StringRef COFFObjectFile::getFileFormatName() const {
- switch(COFFHeader->Machine) {
+ switch(getMachine()) {
case COFF::IMAGE_FILE_MACHINE_I386:
return "COFF-i386";
case COFF::IMAGE_FILE_MACHINE_AMD64:
return "COFF-x86-64";
+ case COFF::IMAGE_FILE_MACHINE_ARMNT:
+ return "COFF-ARM";
default:
return "COFF-<unknown arch>";
}
}
unsigned COFFObjectFile::getArch() const {
- switch(COFFHeader->Machine) {
+ switch (getMachine()) {
case COFF::IMAGE_FILE_MACHINE_I386:
return Triple::x86;
case COFF::IMAGE_FILE_MACHINE_AMD64:
return Triple::x86_64;
+ case COFF::IMAGE_FILE_MACHINE_ARMNT:
+ return Triple::thumb;
default:
return Triple::UnknownArch;
}
}
-// This method is kept here because lld uses this. As soon as we make
-// lld to use getCOFFHeader, this method will be removed.
-error_code COFFObjectFile::getHeader(const coff_file_header *&Res) const {
- return getCOFFHeader(Res);
+iterator_range<import_directory_iterator>
+COFFObjectFile::import_directories() const {
+ return make_range(import_directory_begin(), import_directory_end());
}
-error_code COFFObjectFile::getCOFFHeader(const coff_file_header *&Res) const {
- Res = COFFHeader;
- return object_error::success;
+iterator_range<delay_import_directory_iterator>
+COFFObjectFile::delay_import_directories() const {
+ return make_range(delay_import_directory_begin(),
+ delay_import_directory_end());
+}
+
+iterator_range<export_directory_iterator>
+COFFObjectFile::export_directories() const {
+ return make_range(export_directory_begin(), export_directory_end());
}
-error_code COFFObjectFile::getPE32Header(const pe32_header *&Res) const {
+iterator_range<base_reloc_iterator> COFFObjectFile::base_relocs() const {
+ return make_range(base_reloc_begin(), base_reloc_end());
+}
+
+std::error_code COFFObjectFile::getPE32Header(const pe32_header *&Res) const {
Res = PE32Header;
return object_error::success;
}
-error_code
+std::error_code
COFFObjectFile::getPE32PlusHeader(const pe32plus_header *&Res) const {
Res = PE32PlusHeader;
return object_error::success;
}
-error_code COFFObjectFile::getDataDirectory(uint32_t Index,
- const data_directory *&Res) const {
+std::error_code
+COFFObjectFile::getDataDirectory(uint32_t Index,
+ const data_directory *&Res) const {
// Error if if there's no data directory or the index is out of range.
- if (!DataDirectory)
+ if (!DataDirectory) {
+ Res = nullptr;
return object_error::parse_failed;
+ }
assert(PE32Header || PE32PlusHeader);
uint32_t NumEnt = PE32Header ? PE32Header->NumberOfRvaAndSize
: PE32PlusHeader->NumberOfRvaAndSize;
- if (Index > NumEnt)
+ if (Index >= NumEnt) {
+ Res = nullptr;
return object_error::parse_failed;
+ }
Res = &DataDirectory[Index];
return object_error::success;
}
-error_code COFFObjectFile::getSection(int32_t Index,
- const coff_section *&Result) const {
- // Check for special index values.
- if (Index == COFF::IMAGE_SYM_UNDEFINED ||
- Index == COFF::IMAGE_SYM_ABSOLUTE ||
- Index == COFF::IMAGE_SYM_DEBUG)
- Result = NULL;
- else if (Index > 0 && Index <= COFFHeader->NumberOfSections)
+std::error_code COFFObjectFile::getSection(int32_t Index,
+ const coff_section *&Result) const {
+ Result = nullptr;
+ if (COFF::isReservedSectionNumber(Index))
+ return object_error::success;
+ if (static_cast<uint32_t>(Index) <= getNumberOfSections()) {
// We already verified the section table data, so no need to check again.
Result = SectionTable + (Index - 1);
- else
- return object_error::parse_failed;
- return object_error::success;
+ return object_error::success;
+ }
+ return object_error::parse_failed;
}
-error_code COFFObjectFile::getString(uint32_t Offset,
- StringRef &Result) const {
+std::error_code COFFObjectFile::getString(uint32_t Offset,
+ StringRef &Result) const {
if (StringTableSize <= 4)
// Tried to get a string from an empty string table.
return object_error::parse_failed;
return object_error::success;
}
-error_code COFFObjectFile::getSymbol(uint32_t Index,
- const coff_symbol *&Result) const {
- if (Index < COFFHeader->NumberOfSymbols)
- Result = SymbolTable + Index;
- else
- return object_error::parse_failed;
- return object_error::success;
-}
-
-error_code COFFObjectFile::getSymbolName(const coff_symbol *Symbol,
- StringRef &Res) const {
+std::error_code COFFObjectFile::getSymbolName(COFFSymbolRef Symbol,
+ StringRef &Res) const {
// Check for string table entry. First 4 bytes are 0.
- if (Symbol->Name.Offset.Zeroes == 0) {
- uint32_t Offset = Symbol->Name.Offset.Offset;
- if (error_code EC = getString(Offset, Res))
+ if (Symbol.getStringTableOffset().Zeroes == 0) {
+ uint32_t Offset = Symbol.getStringTableOffset().Offset;
+ if (std::error_code EC = getString(Offset, Res))
return EC;
return object_error::success;
}
- if (Symbol->Name.ShortName[7] == 0)
+ if (Symbol.getShortName()[COFF::NameSize - 1] == 0)
// Null terminated, let ::strlen figure out the length.
- Res = StringRef(Symbol->Name.ShortName);
+ Res = StringRef(Symbol.getShortName());
else
// Not null terminated, use all 8 bytes.
- Res = StringRef(Symbol->Name.ShortName, 8);
+ Res = StringRef(Symbol.getShortName(), COFF::NameSize);
return object_error::success;
}
-ArrayRef<uint8_t> COFFObjectFile::getSymbolAuxData(
- const coff_symbol *Symbol) const {
- const uint8_t *Aux = NULL;
+ArrayRef<uint8_t>
+COFFObjectFile::getSymbolAuxData(COFFSymbolRef Symbol) const {
+ const uint8_t *Aux = nullptr;
- if (Symbol->NumberOfAuxSymbols > 0) {
- // AUX data comes immediately after the symbol in COFF
- Aux = reinterpret_cast<const uint8_t *>(Symbol + 1);
+ size_t SymbolSize = getSymbolTableEntrySize();
+ if (Symbol.getNumberOfAuxSymbols() > 0) {
+ // AUX data comes immediately after the symbol in COFF
+ Aux = reinterpret_cast<const uint8_t *>(Symbol.getRawPtr()) + SymbolSize;
# ifndef NDEBUG
// Verify that the Aux symbol points to a valid entry in the symbol table.
uintptr_t Offset = uintptr_t(Aux) - uintptr_t(base());
- if (Offset < COFFHeader->PointerToSymbolTable
- || Offset >= COFFHeader->PointerToSymbolTable
- + (COFFHeader->NumberOfSymbols * sizeof(coff_symbol)))
+ if (Offset < getPointerToSymbolTable() ||
+ Offset >=
+ getPointerToSymbolTable() + (getNumberOfSymbols() * SymbolSize))
report_fatal_error("Aux Symbol data was outside of symbol table.");
- assert((Offset - COFFHeader->PointerToSymbolTable) % sizeof(coff_symbol)
- == 0 && "Aux Symbol data did not point to the beginning of a symbol");
+ assert((Offset - getPointerToSymbolTable()) % SymbolSize == 0 &&
+ "Aux Symbol data did not point to the beginning of a symbol");
# endif
}
- return ArrayRef<uint8_t>(Aux,
- Symbol->NumberOfAuxSymbols * sizeof(coff_symbol));
+ return makeArrayRef(Aux, Symbol.getNumberOfAuxSymbols() * SymbolSize);
}
-error_code COFFObjectFile::getSectionName(const coff_section *Sec,
- StringRef &Res) const {
+std::error_code COFFObjectFile::getSectionName(const coff_section *Sec,
+ StringRef &Res) const {
StringRef Name;
- if (Sec->Name[7] == 0)
+ if (Sec->Name[COFF::NameSize - 1] == 0)
// Null terminated, let ::strlen figure out the length.
Name = Sec->Name;
else
// Not null terminated, use all 8 bytes.
- Name = StringRef(Sec->Name, 8);
+ Name = StringRef(Sec->Name, COFF::NameSize);
// Check for string table entry. First byte is '/'.
- if (Name[0] == '/') {
+ if (Name.startswith("/")) {
uint32_t Offset;
- if (Name[1] == '/') {
+ if (Name.startswith("//")) {
if (decodeBase64StringEntry(Name.substr(2), Offset))
return object_error::parse_failed;
} else {
if (Name.substr(1).getAsInteger(10, Offset))
return object_error::parse_failed;
}
- if (error_code EC = getString(Offset, Name))
+ if (std::error_code EC = getString(Offset, Name))
return EC;
}
return object_error::success;
}
-error_code COFFObjectFile::getSectionContents(const coff_section *Sec,
- ArrayRef<uint8_t> &Res) const {
+uint64_t COFFObjectFile::getSectionSize(const coff_section *Sec) const {
+ // SizeOfRawData and VirtualSize change what they represent depending on
+ // whether or not we have an executable image.
+ //
+ // For object files, SizeOfRawData contains the size of section's data;
+ // VirtualSize is always zero.
+ //
+ // For executables, SizeOfRawData *must* be a multiple of FileAlignment; the
+ // actual section size is in VirtualSize. It is possible for VirtualSize to
+ // be greater than SizeOfRawData; the contents past that point should be
+ // considered to be zero.
+ uint32_t SectionSize;
+ if (Sec->VirtualSize)
+ SectionSize = std::min(Sec->VirtualSize, Sec->SizeOfRawData);
+ else
+ SectionSize = Sec->SizeOfRawData;
+
+ return SectionSize;
+}
+
+std::error_code
+COFFObjectFile::getSectionContents(const coff_section *Sec,
+ ArrayRef<uint8_t> &Res) const {
+ // PointerToRawData and SizeOfRawData won't make sense for BSS sections,
+ // don't do anything interesting for them.
+ assert((Sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) == 0 &&
+ "BSS sections don't have contents!");
// The only thing that we need to verify is that the contents is contained
// within the file bounds. We don't need to make sure it doesn't cover other
// data, as there's nothing that says that is not allowed.
uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
- uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
- if (ConEnd > uintptr_t(Data->getBufferEnd()))
+ uint32_t SectionSize = getSectionSize(Sec);
+ if (checkOffset(Data, ConStart, SectionSize))
return object_error::parse_failed;
- Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
- Sec->SizeOfRawData);
+ Res = makeArrayRef(reinterpret_cast<const uint8_t *>(ConStart), SectionSize);
return object_error::success;
}
reinterpret_cast<const coff_relocation*>(Rel.p) + 1);
}
-error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
- uint64_t &Res) const {
+std::error_code COFFObjectFile::getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Res) const {
report_fatal_error("getRelocationAddress not implemented in COFFObjectFile");
}
-error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
- uint64_t &Res) const {
- Res = toRel(Rel)->VirtualAddress;
+std::error_code COFFObjectFile::getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Res) const {
+ const coff_relocation *R = toRel(Rel);
+ const support::ulittle32_t *VirtualAddressPtr;
+ if (std::error_code EC =
+ getObject(VirtualAddressPtr, Data, &R->VirtualAddress))
+ return EC;
+ Res = *VirtualAddressPtr;
return object_error::success;
}
symbol_iterator COFFObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
- const coff_relocation* R = toRel(Rel);
+ const coff_relocation *R = toRel(Rel);
DataRefImpl Ref;
- Ref.p = reinterpret_cast<uintptr_t>(SymbolTable + R->SymbolTableIndex);
+ if (R->SymbolTableIndex >= getNumberOfSymbols())
+ return symbol_end();
+ if (SymbolTable16)
+ Ref.p = reinterpret_cast<uintptr_t>(SymbolTable16 + R->SymbolTableIndex);
+ else if (SymbolTable32)
+ Ref.p = reinterpret_cast<uintptr_t>(SymbolTable32 + R->SymbolTableIndex);
+ else
+ llvm_unreachable("no symbol table pointer!");
return symbol_iterator(SymbolRef(Ref, this));
}
-error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
- uint64_t &Res) const {
+std::error_code COFFObjectFile::getRelocationType(DataRefImpl Rel,
+ uint64_t &Res) const {
const coff_relocation* R = toRel(Rel);
Res = R->Type;
return object_error::success;
}
-const coff_section *COFFObjectFile::getCOFFSection(section_iterator &It) const {
- return toSec(It->getRawDataRefImpl());
+const coff_section *
+COFFObjectFile::getCOFFSection(const SectionRef &Section) const {
+ return toSec(Section.getRawDataRefImpl());
+}
+
+COFFSymbolRef COFFObjectFile::getCOFFSymbol(const DataRefImpl &Ref) const {
+ if (SymbolTable16)
+ return toSymb<coff_symbol16>(Ref);
+ if (SymbolTable32)
+ return toSymb<coff_symbol32>(Ref);
+ llvm_unreachable("no symbol table pointer!");
}
-const coff_symbol *COFFObjectFile::getCOFFSymbol(symbol_iterator &It) const {
- return toSymb(It->getRawDataRefImpl());
+COFFSymbolRef COFFObjectFile::getCOFFSymbol(const SymbolRef &Symbol) const {
+ return getCOFFSymbol(Symbol.getRawDataRefImpl());
}
const coff_relocation *
-COFFObjectFile::getCOFFRelocation(relocation_iterator &It) const {
- return toRel(It->getRawDataRefImpl());
+COFFObjectFile::getCOFFRelocation(const RelocationRef &Reloc) const {
+ return toRel(Reloc.getRawDataRefImpl());
}
-#define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(enum) \
- case COFF::enum: Res = #enum; break;
+#define LLVM_COFF_SWITCH_RELOC_TYPE_NAME(reloc_type) \
+ case COFF::reloc_type: \
+ Res = #reloc_type; \
+ break;
-error_code COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
+std::error_code
+COFFObjectFile::getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const {
const coff_relocation *Reloc = toRel(Rel);
StringRef Res;
- switch (COFFHeader->Machine) {
+ switch (getMachine()) {
case COFF::IMAGE_FILE_MACHINE_AMD64:
switch (Reloc->Type) {
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_AMD64_ABSOLUTE);
Res = "Unknown";
}
break;
+ case COFF::IMAGE_FILE_MACHINE_ARMNT:
+ switch (Reloc->Type) {
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ABSOLUTE);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ADDR32);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_ADDR32NB);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH24);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH11);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_TOKEN);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX24);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX11);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_SECTION);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_SECREL);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_MOV32A);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_MOV32T);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH20T);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH24T);
+ LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX23T);
+ default:
+ Res = "Unknown";
+ }
+ break;
case COFF::IMAGE_FILE_MACHINE_I386:
switch (Reloc->Type) {
LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_I386_ABSOLUTE);
#undef LLVM_COFF_SWITCH_RELOC_TYPE_NAME
-error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
+std::error_code
+COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const {
const coff_relocation *Reloc = toRel(Rel);
- const coff_symbol *Symb = 0;
- if (error_code EC = getSymbol(Reloc->SymbolTableIndex, Symb)) return EC;
DataRefImpl Sym;
- Sym.p = reinterpret_cast<uintptr_t>(Symb);
+ ErrorOr<COFFSymbolRef> Symb = getSymbol(Reloc->SymbolTableIndex);
+ if (std::error_code EC = Symb.getError())
+ return EC;
+ Sym.p = reinterpret_cast<uintptr_t>(Symb->getRawPtr());
StringRef SymName;
- if (error_code EC = getSymbolName(Sym, SymName)) return EC;
+ if (std::error_code EC = getSymbolName(Sym, SymName))
+ return EC;
Result.append(SymName.begin(), SymName.end());
return object_error::success;
}
-error_code COFFObjectFile::getLibraryNext(DataRefImpl LibData,
- LibraryRef &Result) const {
- report_fatal_error("getLibraryNext not implemented in COFFObjectFile");
-}
-
-error_code COFFObjectFile::getLibraryPath(DataRefImpl LibData,
- StringRef &Result) const {
- report_fatal_error("getLibraryPath not implemented in COFFObjectFile");
+bool COFFObjectFile::isRelocatableObject() const {
+ return !DataDirectory;
}
bool ImportDirectoryEntryRef::
++Index;
}
-error_code ImportDirectoryEntryRef::
-getImportTableEntry(const import_directory_table_entry *&Result) const {
- Result = ImportTable;
+std::error_code ImportDirectoryEntryRef::getImportTableEntry(
+ const import_directory_table_entry *&Result) const {
+ Result = ImportTable + Index;
return object_error::success;
}
-error_code ImportDirectoryEntryRef::getName(StringRef &Result) const {
+static imported_symbol_iterator
+makeImportedSymbolIterator(const COFFObjectFile *Object,
+ uintptr_t Ptr, int Index) {
+ if (Object->getBytesInAddress() == 4) {
+ auto *P = reinterpret_cast<const import_lookup_table_entry32 *>(Ptr);
+ return imported_symbol_iterator(ImportedSymbolRef(P, Index, Object));
+ }
+ auto *P = reinterpret_cast<const import_lookup_table_entry64 *>(Ptr);
+ return imported_symbol_iterator(ImportedSymbolRef(P, Index, Object));
+}
+
+static imported_symbol_iterator
+importedSymbolBegin(uint32_t RVA, const COFFObjectFile *Object) {
+ uintptr_t IntPtr = 0;
+ Object->getRvaPtr(RVA, IntPtr);
+ return makeImportedSymbolIterator(Object, IntPtr, 0);
+}
+
+static imported_symbol_iterator
+importedSymbolEnd(uint32_t RVA, const COFFObjectFile *Object) {
uintptr_t IntPtr = 0;
- if (error_code EC = OwningObject->getRvaPtr(ImportTable->NameRVA, IntPtr))
+ Object->getRvaPtr(RVA, IntPtr);
+ // Forward the pointer to the last entry which is null.
+ int Index = 0;
+ if (Object->getBytesInAddress() == 4) {
+ auto *Entry = reinterpret_cast<ulittle32_t *>(IntPtr);
+ while (*Entry++)
+ ++Index;
+ } else {
+ auto *Entry = reinterpret_cast<ulittle64_t *>(IntPtr);
+ while (*Entry++)
+ ++Index;
+ }
+ return makeImportedSymbolIterator(Object, IntPtr, Index);
+}
+
+imported_symbol_iterator
+ImportDirectoryEntryRef::imported_symbol_begin() const {
+ return importedSymbolBegin(ImportTable[Index].ImportLookupTableRVA,
+ OwningObject);
+}
+
+imported_symbol_iterator
+ImportDirectoryEntryRef::imported_symbol_end() const {
+ return importedSymbolEnd(ImportTable[Index].ImportLookupTableRVA,
+ OwningObject);
+}
+
+iterator_range<imported_symbol_iterator>
+ImportDirectoryEntryRef::imported_symbols() const {
+ return make_range(imported_symbol_begin(), imported_symbol_end());
+}
+
+std::error_code ImportDirectoryEntryRef::getName(StringRef &Result) const {
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC =
+ OwningObject->getRvaPtr(ImportTable[Index].NameRVA, IntPtr))
return EC;
Result = StringRef(reinterpret_cast<const char *>(IntPtr));
return object_error::success;
}
-error_code ImportDirectoryEntryRef::getImportLookupEntry(
+std::error_code
+ImportDirectoryEntryRef::getImportLookupTableRVA(uint32_t &Result) const {
+ Result = ImportTable[Index].ImportLookupTableRVA;
+ return object_error::success;
+}
+
+std::error_code
+ImportDirectoryEntryRef::getImportAddressTableRVA(uint32_t &Result) const {
+ Result = ImportTable[Index].ImportAddressTableRVA;
+ return object_error::success;
+}
+
+std::error_code ImportDirectoryEntryRef::getImportLookupEntry(
const import_lookup_table_entry32 *&Result) const {
uintptr_t IntPtr = 0;
- if (error_code EC =
- OwningObject->getRvaPtr(ImportTable->ImportLookupTableRVA, IntPtr))
+ uint32_t RVA = ImportTable[Index].ImportLookupTableRVA;
+ if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
return EC;
Result = reinterpret_cast<const import_lookup_table_entry32 *>(IntPtr);
return object_error::success;
}
+bool DelayImportDirectoryEntryRef::
+operator==(const DelayImportDirectoryEntryRef &Other) const {
+ return Table == Other.Table && Index == Other.Index;
+}
+
+void DelayImportDirectoryEntryRef::moveNext() {
+ ++Index;
+}
+
+imported_symbol_iterator
+DelayImportDirectoryEntryRef::imported_symbol_begin() const {
+ return importedSymbolBegin(Table[Index].DelayImportNameTable,
+ OwningObject);
+}
+
+imported_symbol_iterator
+DelayImportDirectoryEntryRef::imported_symbol_end() const {
+ return importedSymbolEnd(Table[Index].DelayImportNameTable,
+ OwningObject);
+}
+
+iterator_range<imported_symbol_iterator>
+DelayImportDirectoryEntryRef::imported_symbols() const {
+ return make_range(imported_symbol_begin(), imported_symbol_end());
+}
+
+std::error_code DelayImportDirectoryEntryRef::getName(StringRef &Result) const {
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = OwningObject->getRvaPtr(Table[Index].Name, IntPtr))
+ return EC;
+ Result = StringRef(reinterpret_cast<const char *>(IntPtr));
+ return object_error::success;
+}
+
+std::error_code DelayImportDirectoryEntryRef::
+getDelayImportTable(const delay_import_directory_table_entry *&Result) const {
+ Result = Table;
+ return object_error::success;
+}
+
+std::error_code DelayImportDirectoryEntryRef::
+getImportAddress(int AddrIndex, uint64_t &Result) const {
+ uint32_t RVA = Table[Index].DelayImportAddressTable +
+ AddrIndex * (OwningObject->is64() ? 8 : 4);
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
+ return EC;
+ if (OwningObject->is64())
+ Result = *reinterpret_cast<const ulittle64_t *>(IntPtr);
+ else
+ Result = *reinterpret_cast<const ulittle32_t *>(IntPtr);
+ return object_error::success;
+}
+
bool ExportDirectoryEntryRef::
operator==(const ExportDirectoryEntryRef &Other) const {
return ExportTable == Other.ExportTable && Index == Other.Index;
// Returns the name of the current export symbol. If the symbol is exported only
// by ordinal, the empty string is set as a result.
-error_code ExportDirectoryEntryRef::getDllName(StringRef &Result) const {
+std::error_code ExportDirectoryEntryRef::getDllName(StringRef &Result) const {
uintptr_t IntPtr = 0;
- if (error_code EC = OwningObject->getRvaPtr(ExportTable->NameRVA, IntPtr))
+ if (std::error_code EC =
+ OwningObject->getRvaPtr(ExportTable->NameRVA, IntPtr))
return EC;
Result = StringRef(reinterpret_cast<const char *>(IntPtr));
return object_error::success;
}
// Returns the starting ordinal number.
-error_code ExportDirectoryEntryRef::getOrdinalBase(uint32_t &Result) const {
+std::error_code
+ExportDirectoryEntryRef::getOrdinalBase(uint32_t &Result) const {
Result = ExportTable->OrdinalBase;
return object_error::success;
}
// Returns the export ordinal of the current export symbol.
-error_code ExportDirectoryEntryRef::getOrdinal(uint32_t &Result) const {
+std::error_code ExportDirectoryEntryRef::getOrdinal(uint32_t &Result) const {
Result = ExportTable->OrdinalBase + Index;
return object_error::success;
}
// Returns the address of the current export symbol.
-error_code ExportDirectoryEntryRef::getExportRVA(uint32_t &Result) const {
+std::error_code ExportDirectoryEntryRef::getExportRVA(uint32_t &Result) const {
uintptr_t IntPtr = 0;
- if (error_code EC = OwningObject->getRvaPtr(
- ExportTable->ExportAddressTableRVA, IntPtr))
+ if (std::error_code EC =
+ OwningObject->getRvaPtr(ExportTable->ExportAddressTableRVA, IntPtr))
return EC;
const export_address_table_entry *entry =
reinterpret_cast<const export_address_table_entry *>(IntPtr);
// Returns the name of the current export symbol. If the symbol is exported only
// by ordinal, the empty string is set as a result.
-error_code ExportDirectoryEntryRef::getSymbolName(StringRef &Result) const {
+std::error_code
+ExportDirectoryEntryRef::getSymbolName(StringRef &Result) const {
uintptr_t IntPtr = 0;
- if (error_code EC = OwningObject->getRvaPtr(
- ExportTable->OrdinalTableRVA, IntPtr))
+ if (std::error_code EC =
+ OwningObject->getRvaPtr(ExportTable->OrdinalTableRVA, IntPtr))
return EC;
const ulittle16_t *Start = reinterpret_cast<const ulittle16_t *>(IntPtr);
I < E; ++I, ++Offset) {
if (*I != Index)
continue;
- if (error_code EC = OwningObject->getRvaPtr(
- ExportTable->NamePointerRVA, IntPtr))
+ if (std::error_code EC =
+ OwningObject->getRvaPtr(ExportTable->NamePointerRVA, IntPtr))
return EC;
const ulittle32_t *NamePtr = reinterpret_cast<const ulittle32_t *>(IntPtr);
- if (error_code EC = OwningObject->getRvaPtr(NamePtr[Offset], IntPtr))
+ if (std::error_code EC = OwningObject->getRvaPtr(NamePtr[Offset], IntPtr))
return EC;
Result = StringRef(reinterpret_cast<const char *>(IntPtr));
return object_error::success;
return object_error::success;
}
-ErrorOr<ObjectFile *> ObjectFile::createCOFFObjectFile(MemoryBuffer *Object,
- bool BufferOwned) {
- error_code EC;
- OwningPtr<COFFObjectFile> Ret(new COFFObjectFile(Object, EC, BufferOwned));
+bool ImportedSymbolRef::
+operator==(const ImportedSymbolRef &Other) const {
+ return Entry32 == Other.Entry32 && Entry64 == Other.Entry64
+ && Index == Other.Index;
+}
+
+void ImportedSymbolRef::moveNext() {
+ ++Index;
+}
+
+std::error_code
+ImportedSymbolRef::getSymbolName(StringRef &Result) const {
+ uint32_t RVA;
+ if (Entry32) {
+ // If a symbol is imported only by ordinal, it has no name.
+ if (Entry32[Index].isOrdinal())
+ return object_error::success;
+ RVA = Entry32[Index].getHintNameRVA();
+ } else {
+ if (Entry64[Index].isOrdinal())
+ return object_error::success;
+ RVA = Entry64[Index].getHintNameRVA();
+ }
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
+ return EC;
+ // +2 because the first two bytes is hint.
+ Result = StringRef(reinterpret_cast<const char *>(IntPtr + 2));
+ return object_error::success;
+}
+
+std::error_code ImportedSymbolRef::getOrdinal(uint16_t &Result) const {
+ uint32_t RVA;
+ if (Entry32) {
+ if (Entry32[Index].isOrdinal()) {
+ Result = Entry32[Index].getOrdinal();
+ return object_error::success;
+ }
+ RVA = Entry32[Index].getHintNameRVA();
+ } else {
+ if (Entry64[Index].isOrdinal()) {
+ Result = Entry64[Index].getOrdinal();
+ return object_error::success;
+ }
+ RVA = Entry64[Index].getHintNameRVA();
+ }
+ uintptr_t IntPtr = 0;
+ if (std::error_code EC = OwningObject->getRvaPtr(RVA, IntPtr))
+ return EC;
+ Result = *reinterpret_cast<const ulittle16_t *>(IntPtr);
+ return object_error::success;
+}
+
+ErrorOr<std::unique_ptr<COFFObjectFile>>
+ObjectFile::createCOFFObjectFile(MemoryBufferRef Object) {
+ std::error_code EC;
+ std::unique_ptr<COFFObjectFile> Ret(new COFFObjectFile(Object, EC));
if (EC)
return EC;
- return Ret.release();
+ return std::move(Ret);
+}
+
+bool BaseRelocRef::operator==(const BaseRelocRef &Other) const {
+ return Header == Other.Header && Index == Other.Index;
+}
+
+void BaseRelocRef::moveNext() {
+ // Header->BlockSize is the size of the current block, including the
+ // size of the header itself.
+ uint32_t Size = sizeof(*Header) +
+ sizeof(coff_base_reloc_block_entry) * (Index + 1);
+ if (Size == Header->BlockSize) {
+ // .reloc contains a list of base relocation blocks. Each block
+ // consists of the header followed by entries. The header contains
+ // how many entories will follow. When we reach the end of the
+ // current block, proceed to the next block.
+ Header = reinterpret_cast<const coff_base_reloc_block_header *>(
+ reinterpret_cast<const uint8_t *>(Header) + Size);
+ Index = 0;
+ } else {
+ ++Index;
+ }
+}
+
+std::error_code BaseRelocRef::getType(uint8_t &Type) const {
+ auto *Entry = reinterpret_cast<const coff_base_reloc_block_entry *>(Header + 1);
+ Type = Entry[Index].getType();
+ return object_error::success;
+}
+
+std::error_code BaseRelocRef::getRVA(uint32_t &Result) const {
+ auto *Entry = reinterpret_cast<const coff_base_reloc_block_entry *>(Header + 1);
+ Result = Header->PageRVA + Entry[Index].getOffset();
+ return object_error::success;
}
projects / oota-llvm.git / blobdiff