#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.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"
CurrentDwarfLoc(0, 0, 0, DWARF2_FLAG_IS_STMT, 0, 0), DwarfLocSeen(false),
GenDwarfForAssembly(false), GenDwarfFileNumber(0), DwarfVersion(4),
AllowTemporaryLabels(true), DwarfCompileUnitID(0),
- AutoReset(DoAutoReset) {
+ AutoReset(DoAutoReset), HadError(false) {
std::error_code EC = llvm::sys::fs::current_path(CompilationDir);
if (EC)
// NOTE: The symbols are all allocated out of a bump pointer allocator,
// we don't need to free them here.
-
- // If the stream for the .secure_log_unique directive was created free it.
- delete (raw_ostream *)SecureLog;
}
//===----------------------------------------------------------------------===//
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();
+ MCSubtargetAllocator.DestroyAll();
UsedNames.clear();
Symbols.clear();
+ SectionSymbols.clear();
Allocator.Reset();
Instances.clear();
CompilationDir.clear();
DwarfLocSeen = false;
GenDwarfForAssembly = false;
GenDwarfFileNumber = 0;
+
+ HadError = false;
}
//===----------------------------------------------------------------------===//
MCSymbol *&Sym = Symbols[NameRef];
if (!Sym)
- Sym = CreateSymbol(NameRef, false);
+ Sym = createSymbol(NameRef, false, false);
return Sym;
}
-MCSymbol *MCContext::getOrCreateSectionSymbol(const MCSectionELF &Section) {
- MCSymbol *&Sym = SectionSymbols[&Section];
+MCSymbolELF *MCContext::getOrCreateSectionSymbol(const MCSectionELF &Section) {
+ MCSymbolELF *&Sym = SectionSymbols[&Section];
if (Sym)
return Sym;
MCSymbol *&OldSym = Symbols[Name];
if (OldSym && OldSym->isUndefined()) {
- Sym = OldSym;
- return OldSym;
+ Sym = cast<MCSymbolELF>(OldSym);
+ return Sym;
}
auto NameIter = UsedNames.insert(std::make_pair(Name, true)).first;
- Sym = new (*this) MCSymbol(&*NameIter, /*isTemporary*/ false);
+ Sym = new (&*NameIter, *this) MCSymbolELF(&*NameIter, /*isTemporary*/ false);
if (!OldSym)
OldSym = Sym;
FuncName);
}
-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());
+MCSymbol *MCContext::createSymbolImpl(const StringMapEntry<bool> *Name,
+ bool 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);
+}
- if (IsTemporary && AlwaysAddSuffix && !UseNamesOnTempLabels)
- return new (*this) MCSymbol(nullptr, true);
+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;
if (NameEntry.second) {
// Ok, we found a name. Have the MCSymbol object itself refer to the copy
// of the string that is embedded in the UsedNames entry.
- MCSymbol *Result = new (*this) MCSymbol(&*NameEntry.first, IsTemporary);
- return Result;
+ return createSymbolImpl(&*NameEntry.first, IsTemporary);
}
assert(IsTemporary && "Cannot rename non-temporary symbols");
AddSuffix = true;
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;
COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE);
}
+MCSubtargetInfo &MCContext::getSubtargetCopy(const MCSubtargetInfo &STI) {
+ return *new (MCSubtargetAllocator.Allocate()) MCSubtargetInfo(STI);
+}
+
//===----------------------------------------------------------------------===//
// Dwarf Management
//===----------------------------------------------------------------------===//
/// Remove empty sections from SectionStartEndSyms, to avoid generating
/// useless debug info for them.
void MCContext::finalizeDwarfSections(MCStreamer &MCOS) {
- std::vector<MCSection *> Keep;
- for (MCSection *Sec : SectionsForRanges) {
- if (MCOS.mayHaveInstructions(*Sec))
- Keep.push_back(Sec);
- }
- SectionsForRanges.clear();
- SectionsForRanges.insert(Keep.begin(), Keep.end());
+ SectionsForRanges.remove_if(
+ [&](MCSection *Sec) { return !MCOS.mayHaveInstructions(*Sec); });
}
-void MCContext::reportFatalError(SMLoc Loc, const Twine &Msg) const {
- // If we have a source manager and a location, use it. Otherwise just
- // use the generic report_fatal_error().
- if (!SrcMgr || Loc == SMLoc())
+//===----------------------------------------------------------------------===//
+// Error Reporting
+//===----------------------------------------------------------------------===//
+
+void MCContext::reportError(SMLoc Loc, const Twine &Msg) {
+ HadError = true;
+
+ // If we have a source manager use it. Otherwise just use the generic
+ // report_fatal_error().
+ if (!SrcMgr)
report_fatal_error(Msg, false);
// Use the source manager to print the message.
SrcMgr->PrintMessage(Loc, SourceMgr::DK_Error, Msg);
+}
+
+void MCContext::reportFatalError(SMLoc Loc, const Twine &Msg) {
+ reportError(Loc, Msg);
// If we reached here, we are failing ungracefully. Run the interrupt handlers
// to make sure any special cleanups get done, in particular that we remove
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