uint64_t MachObjectWriter::getFragmentAddress(const MCFragment *Fragment,
const MCAsmLayout &Layout) const {
return getSectionAddress(Fragment->getParent()) +
- Layout.getFragmentOffset(Fragment);
+ Layout.getFragmentOffset(Fragment);
}
uint64_t MachObjectWriter::getSymbolAddress(const MCSymbol &S,
Layout.getSymbolOffset(S);
}
-uint64_t MachObjectWriter::getPaddingSize(const MCSectionData *SD,
+uint64_t MachObjectWriter::getPaddingSize(const MCSection *Sec,
const MCAsmLayout &Layout) const {
- uint64_t EndAddr = getSectionAddress(SD) + Layout.getSectionAddressSize(SD);
- unsigned Next = SD->getLayoutOrder() + 1;
+ uint64_t EndAddr = getSectionAddress(Sec) + Layout.getSectionAddressSize(Sec);
+ unsigned Next = Sec->getLayoutOrder() + 1;
if (Next >= Layout.getSectionOrder().size())
return 0;
- const MCSectionData &NextSD = *Layout.getSectionOrder()[Next];
- if (NextSD.getSection().isVirtualSection())
+ const MCSection &NextSec = *Layout.getSectionOrder()[Next];
+ if (NextSec.isVirtualSection())
return 0;
- return OffsetToAlignment(EndAddr, NextSD.getAlignment());
+ return OffsetToAlignment(EndAddr, NextSec.getAlignment());
}
void MachObjectWriter::WriteHeader(unsigned NumLoadCommands,
void MachObjectWriter::WriteSection(const MCAssembler &Asm,
const MCAsmLayout &Layout,
- const MCSectionData &SD,
- uint64_t FileOffset,
+ const MCSection &Sec, uint64_t FileOffset,
uint64_t RelocationsStart,
unsigned NumRelocations) {
- uint64_t SectionSize = Layout.getSectionAddressSize(&SD);
+ uint64_t SectionSize = Layout.getSectionAddressSize(&Sec);
+ const MCSectionMachO &Section = cast<MCSectionMachO>(Sec);
// The offset is unused for virtual sections.
- if (SD.getSection().isVirtualSection()) {
- assert(Layout.getSectionFileSize(&SD) == 0 && "Invalid file size!");
+ if (Section.isVirtualSection()) {
+ assert(Layout.getSectionFileSize(&Sec) == 0 && "Invalid file size!");
FileOffset = 0;
}
uint64_t Start = OS.tell();
(void) Start;
- const MCSectionMachO &Section = cast<MCSectionMachO>(SD.getSection());
WriteBytes(Section.getSectionName(), 16);
WriteBytes(Section.getSegmentName(), 16);
if (is64Bit()) {
- Write64(getSectionAddress(&SD)); // address
+ Write64(getSectionAddress(&Sec)); // address
Write64(SectionSize); // size
} else {
- Write32(getSectionAddress(&SD)); // address
+ Write32(getSectionAddress(&Sec)); // address
Write32(SectionSize); // size
}
Write32(FileOffset);
unsigned Flags = Section.getTypeAndAttributes();
- if (SD.hasInstructions())
+ if (Section.hasInstructions())
Flags |= MachO::S_ATTR_SOME_INSTRUCTIONS;
- assert(isPowerOf2_32(SD.getAlignment()) && "Invalid alignment!");
- Write32(Log2_32(SD.getAlignment()));
+ assert(isPowerOf2_32(Section.getAlignment()) && "Invalid alignment!");
+ Write32(Log2_32(Section.getAlignment()));
Write32(NumRelocations ? RelocationsStart : 0);
Write32(NumRelocations);
Write32(Flags);
- Write32(IndirectSymBase.lookup(&SD)); // reserved1
+ Write32(IndirectSymBase.lookup(&Sec)); // reserved1
Write32(Section.getStubSize()); // reserved2
if (is64Bit())
Write32(0); // reserved3
uint64_t Address = 0;
bool IsAlias = Symbol != AliasedSymbol;
+ const MCSymbol &OrigSymbol = *Symbol;
MachSymbolData *AliaseeInfo;
if (IsAlias) {
AliaseeInfo = findSymbolData(*AliasedSymbol);
if (AliaseeInfo)
SectionIndex = AliaseeInfo->SectionIndex;
Symbol = AliasedSymbol;
+ // FIXME: Should this update Data as well? Do we need OrigSymbol at all?
}
// Set the N_TYPE bits. See <mach-o/nlist.h>.
if (IsAlias && Symbol->isUndefined())
Address = AliaseeInfo->StringIndex;
else if (Symbol->isDefined())
- // FIXME: Should Data.getSymbol() always be *Symbol? It doesn't look like
- // that's true.
- Address = getSymbolAddress(Data.getSymbol(), Layout);
- else if (Data.isCommon()) {
+ Address = getSymbolAddress(OrigSymbol, Layout);
+ else if (Symbol->isCommon()) {
// Common symbols are encoded with the size in the address
// field, and their alignment in the flags.
- Address = Data.getCommonSize();
+ Address = Symbol->getCommonSize();
// Common alignment is packed into the 'desc' bits.
- if (unsigned Align = Data.getCommonAlignment()) {
+ if (unsigned Align = Symbol->getCommonAlignment()) {
unsigned Log2Size = Log2_32(Align);
assert((1U << Log2Size) == Align && "Invalid 'common' alignment!");
if (Log2Size > 15)
// or stub section.
for (MCAssembler::indirect_symbol_iterator it = Asm.indirect_symbol_begin(),
ie = Asm.indirect_symbol_end(); it != ie; ++it) {
- const MCSectionMachO &Section =
- cast<MCSectionMachO>(it->SectionData->getSection());
+ const MCSectionMachO &Section = cast<MCSectionMachO>(*it->Section);
if (Section.getType() != MachO::S_NON_LAZY_SYMBOL_POINTERS &&
Section.getType() != MachO::S_LAZY_SYMBOL_POINTERS &&
unsigned IndirectIndex = 0;
for (MCAssembler::indirect_symbol_iterator it = Asm.indirect_symbol_begin(),
ie = Asm.indirect_symbol_end(); it != ie; ++it, ++IndirectIndex) {
- const MCSectionMachO &Section =
- cast<MCSectionMachO>(it->SectionData->getSection());
+ const MCSectionMachO &Section = cast<MCSectionMachO>(*it->Section);
if (Section.getType() != MachO::S_NON_LAZY_SYMBOL_POINTERS)
continue;
// Initialize the section indirect symbol base, if necessary.
- IndirectSymBase.insert(std::make_pair(it->SectionData, IndirectIndex));
+ IndirectSymBase.insert(std::make_pair(it->Section, IndirectIndex));
Asm.getOrCreateSymbolData(*it->Symbol);
}
IndirectIndex = 0;
for (MCAssembler::indirect_symbol_iterator it = Asm.indirect_symbol_begin(),
ie = Asm.indirect_symbol_end(); it != ie; ++it, ++IndirectIndex) {
- const MCSectionMachO &Section =
- cast<MCSectionMachO>(it->SectionData->getSection());
+ const MCSectionMachO &Section = cast<MCSectionMachO>(*it->Section);
if (Section.getType() != MachO::S_LAZY_SYMBOL_POINTERS &&
Section.getType() != MachO::S_SYMBOL_STUBS)
continue;
// Initialize the section indirect symbol base, if necessary.
- IndirectSymBase.insert(std::make_pair(it->SectionData, IndirectIndex));
+ IndirectSymBase.insert(std::make_pair(it->Section, IndirectIndex));
// Set the symbol type to undefined lazy, but only on construction.
//
unsigned Index = 1;
for (MCAssembler::iterator it = Asm.begin(),
ie = Asm.end(); it != ie; ++it, ++Index)
- SectionIndexMap[&it->getSection()] = Index;
+ SectionIndexMap[&*it] = Index;
assert(Index <= 256 && "Too many sections!");
// Build the string table.
// Set the symbol indices.
Index = 0;
for (unsigned i = 0, e = LocalSymbolData.size(); i != e; ++i)
- LocalSymbolData[i].Symbol->getData().setIndex(Index++);
+ LocalSymbolData[i].Symbol->setIndex(Index++);
for (unsigned i = 0, e = ExternalSymbolData.size(); i != e; ++i)
- ExternalSymbolData[i].Symbol->getData().setIndex(Index++);
+ ExternalSymbolData[i].Symbol->setIndex(Index++);
for (unsigned i = 0, e = UndefinedSymbolData.size(); i != e; ++i)
- UndefinedSymbolData[i].Symbol->getData().setIndex(Index++);
+ UndefinedSymbolData[i].Symbol->setIndex(Index++);
- for (const MCSectionData &SD : Asm) {
- std::vector<RelAndSymbol> &Relocs = Relocations[&SD];
+ for (const MCSection &Section : Asm) {
+ std::vector<RelAndSymbol> &Relocs = Relocations[&Section];
for (RelAndSymbol &Rel : Relocs) {
if (!Rel.Sym)
continue;
// Set the Index and the IsExtern bit.
- unsigned Index = Rel.Sym->getData().getIndex();
+ unsigned Index = Rel.Sym->getIndex();
assert(isInt<24>(Index));
if (IsLittleEndian)
Rel.MRE.r_word1 = (Rel.MRE.r_word1 & (~0U << 24)) | Index | (1 << 27);
void MachObjectWriter::computeSectionAddresses(const MCAssembler &Asm,
const MCAsmLayout &Layout) {
uint64_t StartAddress = 0;
- const SmallVectorImpl<MCSectionData*> &Order = Layout.getSectionOrder();
+ const SmallVectorImpl<MCSection *> &Order = Layout.getSectionOrder();
for (int i = 0, n = Order.size(); i != n ; ++i) {
- const MCSectionData *SD = Order[i];
- StartAddress = RoundUpToAlignment(StartAddress, SD->getAlignment());
- SectionAddress[SD] = StartAddress;
- StartAddress += Layout.getSectionAddressSize(SD);
+ const MCSection *Sec = Order[i];
+ StartAddress = RoundUpToAlignment(StartAddress, Sec->getAlignment());
+ SectionAddress[Sec] = StartAddress;
+ StartAddress += Layout.getSectionAddressSize(Sec);
// Explicitly pad the section to match the alignment requirements of the
// following one. This is for 'gas' compatibility, it shouldn't
/// strictly be necessary.
- StartAddress += getPaddingSize(SD, Layout);
+ StartAddress += getPaddingSize(Sec, Layout);
}
}
// addr(atom(A)) - addr(atom(B)) == 0.
const MCSymbol &SA = findAliasedSymbol(SymA);
const MCSection &SecA = SA.getSection();
- const MCSection &SecB = FB.getParent()->getSection();
+ const MCSection &SecB = *FB.getParent();
if (IsPCRel) {
// The simple (Darwin, except on x86_64) way of dealing with this was to
if (!hasReliableSymbolDifference) {
if (!SA.isInSection() || &SecA != &SecB ||
(!SA.isTemporary() &&
- FB.getAtom() != Asm.getSymbolData(SA).getFragment()->getAtom() &&
+ FB.getAtom() != SA.getData().getFragment()->getAtom() &&
Asm.getSubsectionsViaSymbols()))
return false;
return true;
if (&SecA != &SecB)
return false;
- const MCFragment *FA = Asm.getSymbolData(SA).getFragment();
+ const MCFragment *FA = SA.getData().getFragment();
// Bail if the symbol has no fragment.
if (!FA)
uint64_t VMSize = 0;
for (MCAssembler::const_iterator it = Asm.begin(),
ie = Asm.end(); it != ie; ++it) {
- const MCSectionData &SD = *it;
- uint64_t Address = getSectionAddress(&SD);
- uint64_t Size = Layout.getSectionAddressSize(&SD);
- uint64_t FileSize = Layout.getSectionFileSize(&SD);
- FileSize += getPaddingSize(&SD, Layout);
+ const MCSection &Sec = *it;
+ uint64_t Address = getSectionAddress(&Sec);
+ uint64_t Size = Layout.getSectionAddressSize(&Sec);
+ uint64_t FileSize = Layout.getSectionFileSize(&Sec);
+ FileSize += getPaddingSize(&Sec, Layout);
VMSize = std::max(VMSize, Address + Size);
- if (SD.getSection().isVirtualSection())
+ if (it->isVirtualSection())
continue;
SectionDataSize = std::max(SectionDataSize, Address + Size);
uint64_t RelocTableEnd = SectionDataStart + SectionDataFileSize;
for (MCAssembler::const_iterator it = Asm.begin(),
ie = Asm.end(); it != ie; ++it) {
- std::vector<RelAndSymbol> &Relocs = Relocations[it];
+ std::vector<RelAndSymbol> &Relocs = Relocations[&*it];
unsigned NumRelocs = Relocs.size();
- uint64_t SectionStart = SectionDataStart + getSectionAddress(it);
+ uint64_t SectionStart = SectionDataStart + getSectionAddress(&*it);
WriteSection(Asm, Layout, *it, SectionStart, RelocTableEnd, NumRelocs);
RelocTableEnd += NumRelocs * sizeof(MachO::any_relocation_info);
}
// Write the actual section data.
for (MCAssembler::const_iterator it = Asm.begin(),
ie = Asm.end(); it != ie; ++it) {
- Asm.writeSectionData(it, Layout);
+ MCSection &Sec = *it;
+ Asm.writeSectionData(&Sec, Layout);
- uint64_t Pad = getPaddingSize(it, Layout);
+ uint64_t Pad = getPaddingSize(&Sec, Layout);
WriteZeros(Pad);
}
ie = Asm.end(); it != ie; ++it) {
// Write the section relocation entries, in reverse order to match 'as'
// (approximately, the exact algorithm is more complicated than this).
- std::vector<RelAndSymbol> &Relocs = Relocations[it];
+ std::vector<RelAndSymbol> &Relocs = Relocations[&*it];
for (unsigned i = 0, e = Relocs.size(); i != e; ++i) {
Write32(Relocs[e - i - 1].MRE.r_word0);
Write32(Relocs[e - i - 1].MRE.r_word1);
// Indirect symbols in the non-lazy symbol pointer section have some
// special handling.
const MCSectionMachO &Section =
- static_cast<const MCSectionMachO&>(it->SectionData->getSection());
+ static_cast<const MCSectionMachO &>(*it->Section);
if (Section.getType() == MachO::S_NON_LAZY_SYMBOL_POINTERS) {
// If this symbol is defined and internal, mark it as such.
- if (it->Symbol->isDefined() &&
- !Asm.getSymbolData(*it->Symbol).isExternal()) {
+ if (it->Symbol->isDefined() && !it->Symbol->getData().isExternal()) {
uint32_t Flags = MachO::INDIRECT_SYMBOL_LOCAL;
if (it->Symbol->isAbsolute())
Flags |= MachO::INDIRECT_SYMBOL_ABS;
}
}
- Write32(Asm.getSymbolData(*it->Symbol).getIndex());
+ Write32(it->Symbol->getIndex());
}
// FIXME: Check that offsets match computed ones.
projects / oota-llvm.git / blobdiff