#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCObjectStreamer.h"
-// FIXME: Remove this.
-#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ErrorHandling.h"
class MCPureStreamer : public MCObjectStreamer {
private:
- virtual void EmitInstToFragment(const MCInst &Inst);
- virtual void EmitInstToData(const MCInst &Inst);
+ virtual void EmitInstToFragment(const MCInst &Inst,
+ const MCSubtargetInfo &STI);
+ virtual void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &STI);
public:
- MCPureStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter) {}
+ MCPureStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
+ MCCodeEmitter *Emitter)
+ : MCObjectStreamer(Context, TAB, OS, Emitter) {}
/// @name MCStreamer Interface
/// @{
- virtual void InitSections();
virtual void EmitLabel(MCSymbol *Symbol);
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
+ virtual void EmitDebugLabel(MCSymbol *Symbol);
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- unsigned Size = 0, unsigned ByteAlignment = 0);
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
+ uint64_t Size = 0, unsigned ByteAlignment = 0);
+ virtual void EmitBytes(StringRef Data);
virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
unsigned ValueSize = 1,
unsigned MaxBytesToEmit = 0);
virtual void EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit = 0);
- virtual void EmitValueToOffset(const MCExpr *Offset,
+ virtual bool EmitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0);
- virtual void Finish();
+ virtual void FinishImpl();
- virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
+ virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
report_fatal_error("unsupported directive in pure streamer");
+ return false;
}
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {
report_fatal_error("unsupported directive in pure streamer");
virtual void EmitFileDirective(StringRef Filename) {
report_fatal_error("unsupported directive in pure streamer");
}
- virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename) {
+ virtual void EmitIdent(StringRef IdentString) {
+ report_fatal_error("unsupported directive in pure streamer");
+ }
+ virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename, unsigned CUID = 0) {
report_fatal_error("unsupported directive in pure streamer");
- return false;
}
-
- /// @}
};
} // end anonymous namespace.
-void MCPureStreamer::InitSections() {
- // FIMXE: To what!?
- SwitchSection(getContext().getMachOSection("__TEXT", "__text",
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 0, SectionKind::getText()));
-
-}
-
void MCPureStreamer::EmitLabel(MCSymbol *Symbol) {
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
- assert(getCurrentSection() && "Cannot emit before setting section!");
+ assert(getCurrentSection().first && "Cannot emit before setting section!");
- Symbol->setSection(*getCurrentSection());
+ AssignSection(Symbol, getCurrentSection().first);
MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
// We have to create a new fragment if this is an atom defining symbol,
// fragments cannot span atoms.
if (getAssembler().isSymbolLinkerVisible(SD.getSymbol()))
- new MCDataFragment(getCurrentSectionData());
+ insert(new MCDataFragment());
// FIXME: This is wasteful, we don't necessarily need to create a data
// fragment. Instead, we should mark the symbol as pointing into the data
SD.setOffset(F->getContents().size());
}
-void MCPureStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- // TODO: This is exactly the same as WinCOFFStreamer. Consider merging into
- // MCObjectStreamer.
- // FIXME: Lift context changes into super class.
- getAssembler().getOrCreateSymbolData(*Symbol);
- Symbol->setVariableValue(AddValueSymbols(Value));
+
+void MCPureStreamer::EmitDebugLabel(MCSymbol *Symbol) {
+ EmitLabel(Symbol);
}
void MCPureStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
- unsigned Size, unsigned ByteAlignment) {
+ uint64_t Size, unsigned ByteAlignment) {
report_fatal_error("not yet implemented in pure streamer");
}
-void MCPureStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
+void MCPureStreamer::EmitBytes(StringRef Data) {
// TODO: This is exactly the same as WinCOFFStreamer. Consider merging into
// MCObjectStreamer.
getOrCreateDataFragment()->getContents().append(Data.begin(), Data.end());
// MCObjectStreamer.
if (MaxBytesToEmit == 0)
MaxBytesToEmit = ByteAlignment;
- new MCAlignFragment(ByteAlignment, Value, ValueSize, MaxBytesToEmit,
- getCurrentSectionData());
+ insert(new MCAlignFragment(ByteAlignment, Value, ValueSize, MaxBytesToEmit));
// Update the maximum alignment on the current section if necessary.
if (ByteAlignment > getCurrentSectionData()->getAlignment())
// MCObjectStreamer.
if (MaxBytesToEmit == 0)
MaxBytesToEmit = ByteAlignment;
- MCAlignFragment *F = new MCAlignFragment(ByteAlignment, 0, 1, MaxBytesToEmit,
- getCurrentSectionData());
+ MCAlignFragment *F = new MCAlignFragment(ByteAlignment, 0, 1, MaxBytesToEmit);
+ insert(F);
F->setEmitNops(true);
// Update the maximum alignment on the current section if necessary.
getCurrentSectionData()->setAlignment(ByteAlignment);
}
-void MCPureStreamer::EmitValueToOffset(const MCExpr *Offset,
+bool MCPureStreamer::EmitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
- new MCOrgFragment(*Offset, Value, getCurrentSectionData());
+ insert(new MCOrgFragment(*Offset, Value));
+ return false;
}
-void MCPureStreamer::EmitInstToFragment(const MCInst &Inst) {
- MCInstFragment *IF = new MCInstFragment(Inst, getCurrentSectionData());
+void MCPureStreamer::EmitInstToFragment(const MCInst &Inst,
+ const MCSubtargetInfo &STI) {
+ MCRelaxableFragment *IF = new MCRelaxableFragment(Inst, STI);
+ insert(IF);
// Add the fixups and data.
//
SmallVector<MCFixup, 4> Fixups;
SmallString<256> Code;
raw_svector_ostream VecOS(Code);
- getAssembler().getEmitter().EncodeInstruction(Inst, VecOS, Fixups);
+ getAssembler().getEmitter().EncodeInstruction(Inst, VecOS, Fixups, STI);
VecOS.flush();
- IF->getCode() = Code;
+ IF->getContents() = Code;
IF->getFixups() = Fixups;
}
-void MCPureStreamer::EmitInstToData(const MCInst &Inst) {
+void MCPureStreamer::EmitInstToData(const MCInst &Inst,
+ const MCSubtargetInfo &STI) {
MCDataFragment *DF = getOrCreateDataFragment();
SmallVector<MCFixup, 4> Fixups;
SmallString<256> Code;
raw_svector_ostream VecOS(Code);
- getAssembler().getEmitter().EncodeInstruction(Inst, VecOS, Fixups);
+ getAssembler().getEmitter().EncodeInstruction(Inst, VecOS, Fixups, STI);
VecOS.flush();
// Add the fixups and data.
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
Fixups[i].setOffset(Fixups[i].getOffset() + DF->getContents().size());
- DF->addFixup(Fixups[i]);
+ DF->getFixups().push_back(Fixups[i]);
}
DF->getContents().append(Code.begin(), Code.end());
}
-void MCPureStreamer::Finish() {
+void MCPureStreamer::FinishImpl() {
// FIXME: Handle DWARF tables?
- this->MCObjectStreamer::Finish();
+ this->MCObjectStreamer::FinishImpl();
}
MCStreamer *llvm::createPureStreamer(MCContext &Context, MCAsmBackend &MAB,
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