#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbolCOFF.h"
#include "llvm/MC/MCSymbolELF.h"
+#include "llvm/MC/MCSymbolMachO.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
void MCContext::reset() {
// Call the destructors so the fragments are freed
- for (auto &I : ELFUniquingMap)
- I.second->~MCSectionELF();
- for (auto &I : COFFUniquingMap)
- I.second->~MCSectionCOFF();
- for (auto &I : MachOUniquingMap)
- I.second->~MCSectionMachO();
+ COFFAllocator.DestroyAll();
+ ELFAllocator.DestroyAll();
+ MachOAllocator.DestroyAll();
UsedNames.clear();
Symbols.clear();
+ SectionSymbols.clear();
Allocator.Reset();
Instances.clear();
CompilationDir.clear();
MCSymbol *&Sym = Symbols[NameRef];
if (!Sym)
- Sym = CreateSymbol(NameRef, false);
+ Sym = createSymbol(NameRef, false, false);
return Sym;
}
}
auto NameIter = UsedNames.insert(std::make_pair(Name, true)).first;
- Sym = new (*this) MCSymbolELF(&*NameIter, /*isTemporary*/ false);
+ Sym = new (&*NameIter, *this) MCSymbolELF(&*NameIter, /*isTemporary*/ false);
if (!OldSym)
OldSym = Sym;
MCSymbol *MCContext::createSymbolImpl(const StringMapEntry<bool> *Name,
bool IsTemporary) {
- bool IsELF = MOFI && MOFI->getObjectFileType() == MCObjectFileInfo::IsELF;
- if (IsELF)
- return new (*this) MCSymbolELF(Name, IsTemporary);
- return new (*this) MCSymbol(false, Name, IsTemporary);
+ if (MOFI) {
+ switch (MOFI->getObjectFileType()) {
+ case MCObjectFileInfo::IsCOFF:
+ return new (Name, *this) MCSymbolCOFF(Name, IsTemporary);
+ case MCObjectFileInfo::IsELF:
+ return new (Name, *this) MCSymbolELF(Name, IsTemporary);
+ case MCObjectFileInfo::IsMachO:
+ return new (Name, *this) MCSymbolMachO(Name, IsTemporary);
+ }
+ }
+ return new (Name, *this) MCSymbol(MCSymbol::SymbolKindUnset, Name,
+ IsTemporary);
}
-MCSymbol *MCContext::CreateSymbol(StringRef Name, bool AlwaysAddSuffix) {
- // Determine whether this is an assembler temporary or normal label, if used.
- bool IsTemporary = false;
- if (AllowTemporaryLabels)
- IsTemporary = Name.startswith(MAI->getPrivateGlobalPrefix());
-
- if (IsTemporary && AlwaysAddSuffix && !UseNamesOnTempLabels)
+MCSymbol *MCContext::createSymbol(StringRef Name, bool AlwaysAddSuffix,
+ bool CanBeUnnamed) {
+ if (CanBeUnnamed && !UseNamesOnTempLabels)
return createSymbolImpl(nullptr, true);
+ // Determine whether this is an user writter assembler temporary or normal
+ // label, if used.
+ bool IsTemporary = CanBeUnnamed;
+ if (AllowTemporaryLabels && !IsTemporary)
+ IsTemporary = Name.startswith(MAI->getPrivateGlobalPrefix());
+
SmallString<128> NewName = Name;
bool AddSuffix = AlwaysAddSuffix;
unsigned &NextUniqueID = NextID[Name];
llvm_unreachable("Infinite loop");
}
-MCSymbol *MCContext::createTempSymbol(const Twine &Name, bool AlwaysAddSuffix) {
+MCSymbol *MCContext::createTempSymbol(const Twine &Name, bool AlwaysAddSuffix,
+ bool CanBeUnnamed) {
SmallString<128> NameSV;
raw_svector_ostream(NameSV) << MAI->getPrivateGlobalPrefix() << Name;
- return CreateSymbol(NameSV, AlwaysAddSuffix);
+ return createSymbol(NameSV, AlwaysAddSuffix, CanBeUnnamed);
}
MCSymbol *MCContext::createLinkerPrivateTempSymbol() {
SmallString<128> NameSV;
raw_svector_ostream(NameSV) << MAI->getLinkerPrivateGlobalPrefix() << "tmp";
- return CreateSymbol(NameSV, true);
+ return createSymbol(NameSV, true, false);
}
-MCSymbol *MCContext::createTempSymbol() {
- return createTempSymbol("tmp", true);
+MCSymbol *MCContext::createTempSymbol(bool CanBeUnnamed) {
+ return createTempSymbol("tmp", true, CanBeUnnamed);
}
unsigned MCContext::NextInstance(unsigned LocalLabelVal) {
unsigned Instance) {
MCSymbol *&Sym = LocalSymbols[std::make_pair(LocalLabelVal, Instance)];
if (!Sym)
- Sym = createTempSymbol();
+ Sym = createTempSymbol(false);
return Sym;
}
Begin = createTempSymbol(BeginSymName, false);
// Otherwise, return a new section.
- return Entry = new (*this) MCSectionMachO(Segment, Section, TypeAndAttributes,
- Reserved2, Kind, Begin);
+ return Entry = new (MachOAllocator.Allocate()) MCSectionMachO(
+ Segment, Section, TypeAndAttributes, Reserved2, Kind, Begin);
}
void MCContext::renameELFSection(MCSectionELF *Section, StringRef Name) {
MCSectionELF *MCContext::createELFRelSection(StringRef Name, unsigned Type,
unsigned Flags, unsigned EntrySize,
- const MCSymbol *Group,
+ const MCSymbolELF *Group,
const MCSectionELF *Associated) {
StringMap<bool>::iterator I;
bool Inserted;
std::tie(I, Inserted) = ELFRelSecNames.insert(std::make_pair(Name, true));
- return new (*this)
+ return new (ELFAllocator.Allocate())
MCSectionELF(I->getKey(), Type, Flags, SectionKind::getReadOnly(),
EntrySize, Group, true, nullptr, Associated);
}
unsigned Flags, unsigned EntrySize,
StringRef Group, unsigned UniqueID,
const char *BeginSymName) {
- MCSymbol *GroupSym = nullptr;
+ MCSymbolELF *GroupSym = nullptr;
if (!Group.empty())
- GroupSym = getOrCreateSymbol(Group);
+ GroupSym = cast<MCSymbolELF>(getOrCreateSymbol(Group));
return getELFSection(Section, Type, Flags, EntrySize, GroupSym, UniqueID,
BeginSymName, nullptr);
MCSectionELF *MCContext::getELFSection(StringRef Section, unsigned Type,
unsigned Flags, unsigned EntrySize,
- const MCSymbol *GroupSym,
+ const MCSymbolELF *GroupSym,
unsigned UniqueID,
const char *BeginSymName,
const MCSectionELF *Associated) {
if (BeginSymName)
Begin = createTempSymbol(BeginSymName, false);
- MCSectionELF *Result =
- new (*this) MCSectionELF(CachedName, Type, Flags, Kind, EntrySize,
- GroupSym, UniqueID, Begin, Associated);
+ MCSectionELF *Result = new (ELFAllocator.Allocate())
+ MCSectionELF(CachedName, Type, Flags, Kind, EntrySize, GroupSym, UniqueID,
+ Begin, Associated);
Entry.second = Result;
return Result;
}
-MCSectionELF *MCContext::createELFGroupSection(const MCSymbol *Group) {
- MCSectionELF *Result = new (*this)
+MCSectionELF *MCContext::createELFGroupSection(const MCSymbolELF *Group) {
+ MCSectionELF *Result = new (ELFAllocator.Allocate())
MCSectionELF(".group", ELF::SHT_GROUP, 0, SectionKind::getReadOnly(), 4,
Group, ~0, nullptr, nullptr);
return Result;
Begin = createTempSymbol(BeginSymName, false);
StringRef CachedName = Iter->first.SectionName;
- MCSectionCOFF *Result = new (*this) MCSectionCOFF(
+ MCSectionCOFF *Result = new (COFFAllocator.Allocate()) MCSectionCOFF(
CachedName, Characteristics, COMDATSymbol, Selection, Kind, Begin);
Iter->second = Result;