#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCWin64EH.h"
#include "llvm/Support/ErrorHandling.h"
delete WinFrameInfos[i];
WinFrameInfos.clear();
CurrentWinFrameInfo = nullptr;
+ SymbolOrdering.clear();
SectionStack.clear();
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
}
MCSymbol *EHSymbol) {
}
-void MCStreamer::InitSections() {
+void MCStreamer::InitSections(bool NoExecStack) {
SwitchSection(getContext().getObjectFileInfo()->getTextSection());
}
Frame.IsSimple = IsSimple;
EmitCFIStartProcImpl(Frame);
+ const MCAsmInfo* MAI = Context.getAsmInfo();
+ if (MAI) {
+ for (const MCCFIInstruction& Inst : MAI->getInitialFrameState()) {
+ if (Inst.getOperation() == MCCFIInstruction::OpDefCfa ||
+ Inst.getOperation() == MCCFIInstruction::OpDefCfaRegister) {
+ Frame.CurrentCfaRegister = Inst.getRegister();
+ }
+ }
+ }
+
DwarfFrameInfos.push_back(Frame);
}
MCCFIInstruction::createDefCfa(Label, Register, Offset);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
CurFrame->Instructions.push_back(Instruction);
+ CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
}
void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
MCCFIInstruction::createDefCfaRegister(Label, Register);
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
CurFrame->Instructions.push_back(Instruction);
+ CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
}
void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
void MCStreamer::EmitBundleLock(bool AlignToEnd) {}
void MCStreamer::FinishImpl() {}
void MCStreamer::EmitBundleUnlock() {}
+
+void MCStreamer::SwitchSection(const MCSection *Section,
+ const MCExpr *Subsection) {
+ assert(Section && "Cannot switch to a null section!");
+ MCSectionSubPair curSection = SectionStack.back().first;
+ SectionStack.back().second = curSection;
+ if (MCSectionSubPair(Section, Subsection) != curSection) {
+ SectionStack.back().first = MCSectionSubPair(Section, Subsection);
+ assert(!Section->hasEnded() && "Section already ended");
+ ChangeSection(Section, Subsection);
+ MCSymbol *Sym = Section->getBeginSymbol();
+ if (Sym && !Sym->isInSection())
+ EmitLabel(Sym);
+ }
+}
+
+MCSymbol *MCStreamer::endSection(const MCSection *Section) {
+ // TODO: keep track of the last subsection so that this symbol appears in the
+ // correct place.
+ MCSymbol *Sym = Section->getEndSymbol(Context);
+ if (Sym->isInSection())
+ return Sym;
+
+ SwitchSection(Section);
+ EmitLabel(Sym);
+ return Sym;
+}