#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ErrorHandling.h"
#include <cstdlib>
using namespace llvm;
-MCStreamer::MCStreamer(StreamerKind Kind, MCContext &Ctx)
- : Kind(Kind), Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
- CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
+// Pin the vtables to this file.
+MCTargetStreamer::~MCTargetStreamer() {}
+
+MCTargetStreamer::MCTargetStreamer(MCStreamer &S) : Streamer(S) {
+ S.setTargetStreamer(this);
+}
+
+void MCTargetStreamer::emitLabel(MCSymbol *Symbol) {}
+
+void MCTargetStreamer::finish() {}
+
+MCStreamer::MCStreamer(MCContext &Ctx)
+ : Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
+ CurrentW64UnwindInfo(0), LastSymbol(0) {
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
}
return nulls();
}
+void MCStreamer::emitRawComment(const Twine &T, bool TabPrefix) {}
+
void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
for (std::vector<MCDwarfFrameInfo>::iterator I = FrameInfos.begin(),
E = FrameInfos.end(); I != E; ++I)
MCSymbol *EHSymbol) {
}
+void MCStreamer::InitSections(bool Force) {
+ SwitchSection(getContext().getObjectFileInfo()->getTextSection());
+}
+
+void MCStreamer::AssignSection(MCSymbol *Symbol, const MCSection *Section) {
+ if (Section)
+ Symbol->setSection(*Section);
+ else
+ Symbol->setUndefined();
+
+ // As we emit symbols into a section, track the order so that they can
+ // be sorted upon later. Zero is reserved to mean 'unemitted'.
+ SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
+}
+
void MCStreamer::EmitLabel(MCSymbol *Symbol) {
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection().first && "Cannot emit before setting section!");
- Symbol->setSection(*getCurrentSection().first);
+ AssignSection(Symbol, getCurrentSection().first);
LastSymbol = Symbol;
+
+ MCTargetStreamer *TS = getTargetStreamer();
+ if (TS)
+ TS->emitLabel(Symbol);
}
void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection().first && "Cannot emit before setting section!");
- Symbol->setSection(*getCurrentSection().first);
+ AssignSection(Symbol, getCurrentSection().first);
LastSymbol = Symbol;
}
EmitDebugFrame = Debug;
}
-void MCStreamer::EmitCFIStartProc() {
+void MCStreamer::EmitCFIStartProc(bool IsSimple) {
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
if (CurFrame && !CurFrame->End)
report_fatal_error("Starting a frame before finishing the previous one!");
MCDwarfFrameInfo Frame;
+ Frame.IsSimple = IsSimple;
EmitCFIStartProcImpl(Frame);
FrameInfos.push_back(Frame);
void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
Frame.Function = LastSymbol;
- // If the function is externally visible, we need to create a local
- // symbol to avoid relocations.
- StringRef Prefix = getContext().getAsmInfo()->getPrivateGlobalPrefix();
- if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
- Frame.Begin = LastSymbol;
- } else {
- Frame.Begin = getContext().CreateTempSymbol();
- EmitLabel(Frame.Begin);
- }
+ // We need to create a local symbol to avoid relocations.
+ Frame.Begin = getContext().CreateTempSymbol();
+ EmitLabel(Frame.Begin);
}
void MCStreamer::EmitCFIEndProc() {
CurFrame->Instructions.push_back(Instruction);
}
+void MCStreamer::EmitCFIWindowSave() {
+ MCSymbol *Label = EmitCFICommon();
+ MCCFIInstruction Instruction =
+ MCCFIInstruction::createWindowSave(Label);
+ MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+ CurFrame->Instructions.push_back(Instruction);
+}
+
void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
W64UnwindInfos.push_back(Frame);
CurrentW64UnwindInfo = W64UnwindInfos.back();
EmitLabel(CurFrame->PrologEnd);
}
-void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+void MCStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
llvm_unreachable("This file format doesn't support this directive");
}
-void MCStreamer::EmitFnStart() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitFnEnd() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitCantUnwind() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitHandlerData() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitPersonality(const MCSymbol *Personality) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitPad(int64_t Offset) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitTCEntry(const MCSymbol &S) {
- llvm_unreachable("Unsupported method");
+void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+ llvm_unreachable("This file format doesn't support this directive");
}
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
/// indicated by the hasRawTextSupport() predicate.
-void MCStreamer::EmitRawText(StringRef String) {
+void MCStreamer::EmitRawTextImpl(StringRef String) {
errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
" something must not be fully mc'ized\n";
abort();
void MCStreamer::EmitRawText(const Twine &T) {
SmallString<128> Str;
- T.toVector(Str);
- EmitRawText(Str.str());
+ EmitRawTextImpl(T.toStringRef(Str));
}
void MCStreamer::EmitFrames(MCAsmBackend *MAB, bool usingCFI) {
if (!FrameInfos.empty() && !FrameInfos.back().End)
report_fatal_error("Unfinished frame!");
+ MCTargetStreamer *TS = getTargetStreamer();
+ if (TS)
+ TS->finish();
+
FinishImpl();
}