#ifndef LLVM_MC_MCSTREAMER_H
#define LLVM_MC_MCSTREAMER_H
-#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/MC/MCDirectives.h"
#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MCWin64EH.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/SmallVector.h"
namespace llvm {
+ class MCAsmBackend;
class MCAsmInfo;
class MCCodeEmitter;
class MCContext;
class MCSection;
class MCSymbol;
class StringRef;
- class TargetAsmBackend;
class TargetLoweringObjectFile;
class Twine;
class raw_ostream;
MCStreamer(const MCStreamer&); // DO NOT IMPLEMENT
MCStreamer &operator=(const MCStreamer&); // DO NOT IMPLEMENT
- void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
- bool isPCRel, unsigned AddrSpace);
+ bool EmitEHFrame;
+ bool EmitDebugFrame;
std::vector<MCDwarfFrameInfo> FrameInfos;
MCDwarfFrameInfo *getCurrentFrameInfo();
void EnsureValidFrame();
+ std::vector<MCWin64EHUnwindInfo *> W64UnwindInfos;
+ MCWin64EHUnwindInfo *CurrentW64UnwindInfo;
+ void setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame);
+ void EnsureValidW64UnwindInfo();
+
+ MCSymbol* LastSymbol;
+
/// SectionStack - This is stack of current and previous section
/// values saved by PushSection.
SmallVector<std::pair<const MCSection *,
protected:
MCStreamer(MCContext &Ctx);
+ const MCExpr *BuildSymbolDiff(MCContext &Context, const MCSymbol *A,
+ const MCSymbol *B);
+
+ const MCExpr *ForceExpAbs(const MCExpr* Expr);
+
+ void EmitFrames(bool usingCFI);
+
+ MCWin64EHUnwindInfo *getCurrentW64UnwindInfo(){return CurrentW64UnwindInfo;}
+ void EmitW64Tables();
+
public:
virtual ~MCStreamer();
return FrameInfos[i];
}
+ ArrayRef<MCDwarfFrameInfo> getFrameInfos() {
+ return FrameInfos;
+ }
+
+ unsigned getNumW64UnwindInfos() {
+ return W64UnwindInfos.size();
+ }
+
+ MCWin64EHUnwindInfo &getW64UnwindInfo(unsigned i) {
+ return *W64UnwindInfos[i];
+ }
+
/// @name Assembly File Formatting.
/// @{
}
}
+ /// SwitchSectionNoChange - Set the current section where code is being
+ /// emitted to @p Section. This is required to update CurSection. This
+ /// version does not call ChangeSection.
+ void SwitchSectionNoChange(const MCSection *Section) {
+ assert(Section && "Cannot switch to a null section!");
+ const MCSection *curSection = SectionStack.back().first;
+ SectionStack.back().second = curSection;
+ if (Section != curSection)
+ SectionStack.back().first = Section;
+ }
+
/// InitSections - Create the default sections and set the initial one.
virtual void InitSections() = 0;
/// @param Symbol - The symbol to emit. A given symbol should only be
/// emitted as a label once, and symbols emitted as a label should never be
/// used in an assignment.
- virtual void EmitLabel(MCSymbol *Symbol) = 0;
+ virtual void EmitLabel(MCSymbol *Symbol);
+
+ virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
+ MCSymbol *EHSymbol);
/// EmitAssemblerFlag - Note in the output the specified @p Flag
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) = 0;
///
/// @param Symbol - The common symbol to emit.
/// @param Size - The size of the common symbol.
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) = 0;
+ /// @param ByteAlignment - The alignment of the common symbol in bytes.
+ virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) = 0;
/// EmitZerofill - Emit the zerofill section and an optional symbol.
///
/// if non-zero. This must be a power of 2 on some targets.
virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment = 0) = 0;
+
/// @}
/// @name Generating Data
/// @{
/// @param Size - The size of the integer (in bytes) to emit. This must
/// match a native machine width.
virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- bool isPCRel, unsigned AddrSpace) = 0;
+ unsigned AddrSpace) = 0;
void EmitValue(const MCExpr *Value, unsigned Size, unsigned AddrSpace = 0);
- void EmitPCRelValue(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace = 0);
-
/// EmitIntValue - Special case of EmitValue that avoids the client having
/// to pass in a MCExpr for constant integers.
virtual void EmitIntValue(uint64_t Value, unsigned Size,
void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
unsigned AddrSpace = 0);
- void EmitPCRelSymbolValue(const MCSymbol *Sym, unsigned Size,
- unsigned AddrSpace = 0);
-
/// EmitGPRel32Value - Emit the expression @p Value into the output as a
/// gprel32 (32-bit GP relative) value.
///
virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
const MCSymbol *LastLabel,
- const MCSymbol *Label) = 0;
+ const MCSymbol *Label,
+ unsigned PointerSize) = 0;
virtual void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
const MCSymbol *Label) {
void EmitDwarfSetLineAddr(int64_t LineDelta, const MCSymbol *Label,
int PointerSize);
+ virtual void EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding);
+ virtual void EmitCFISections(bool EH, bool Debug);
virtual void EmitCFIStartProc();
virtual void EmitCFIEndProc();
virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
+ virtual void EmitWin64EHStartProc(const MCSymbol *Symbol);
+ virtual void EmitWin64EHEndProc();
+ virtual void EmitWin64EHStartChained();
+ virtual void EmitWin64EHEndChained();
+ virtual void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except);
+ virtual void EmitWin64EHHandlerData();
+ virtual void EmitWin64EHPushReg(unsigned Register);
+ virtual void EmitWin64EHSetFrame(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHAllocStack(unsigned Size);
+ virtual void EmitWin64EHSaveReg(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset);
+ virtual void EmitWin64EHPushFrame(bool Code);
+ virtual void EmitWin64EHEndProlog();
+
/// EmitInstruction - Emit the given @p Instruction into the current
/// section.
virtual void EmitInstruction(const MCInst &Inst) = 0;
///
/// \param ShowInst - Whether to show the MCInst representation inline with
/// the assembly.
+ ///
+ /// \param DecodeLSDA - If true, emit comments that translates the LSDA into a
+ /// human readable format. Only usable with CFI.
MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
bool isVerboseAsm,
bool useLoc,
+ bool useCFI,
MCInstPrinter *InstPrint = 0,
MCCodeEmitter *CE = 0,
- TargetAsmBackend *TAB = 0,
+ MCAsmBackend *TAB = 0,
bool ShowInst = false);
/// createMachOStreamer - Create a machine code streamer which will generate
/// Mach-O format object files.
///
/// Takes ownership of \arg TAB and \arg CE.
- MCStreamer *createMachOStreamer(MCContext &Ctx, TargetAsmBackend &TAB,
+ MCStreamer *createMachOStreamer(MCContext &Ctx, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *CE,
bool RelaxAll = false);
///
/// Takes ownership of \arg TAB and \arg CE.
MCStreamer *createWinCOFFStreamer(MCContext &Ctx,
- TargetAsmBackend &TAB,
+ MCAsmBackend &TAB,
MCCodeEmitter &CE, raw_ostream &OS,
bool RelaxAll = false);
/// createELFStreamer - Create a machine code streamer which will generate
/// ELF format object files.
- MCStreamer *createELFStreamer(MCContext &Ctx, TargetAsmBackend &TAB,
+ MCStreamer *createELFStreamer(MCContext &Ctx, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *CE,
bool RelaxAll, bool NoExecStack);
/// "pure" MC object files, for use with MC-JIT and testing tools.
///
/// Takes ownership of \arg TAB and \arg CE.
- MCStreamer *createPureStreamer(MCContext &Ctx, TargetAsmBackend &TAB,
+ MCStreamer *createPureStreamer(MCContext &Ctx, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *CE);
} // end namespace llvm
projects / oota-llvm.git / blobdiff