#ifndef LLVM_MC_MCSTREAMER_H
#define LLVM_MC_MCSTREAMER_H
+#include "llvm/ADT/ArrayRef.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/Support/DataTypes.h"
namespace llvm {
- class MCAsmInfo;
+ class MCAsmBackend;
class MCCodeEmitter;
class MCContext;
class MCExpr;
class MCSection;
class MCSymbol;
class StringRef;
- class TargetAsmBackend;
- class TargetLoweringObjectFile;
class Twine;
class raw_ostream;
class formatted_raw_ostream;
class MCStreamer {
MCContext &Context;
- MCStreamer(const MCStreamer&); // DO NOT IMPLEMENT
- MCStreamer &operator=(const MCStreamer&); // DO NOT IMPLEMENT
+ MCStreamer(const MCStreamer&) LLVM_DELETED_FUNCTION;
+ MCStreamer &operator=(const MCStreamer&) LLVM_DELETED_FUNCTION;
- void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
- bool isPCRel, unsigned AddrSpace);
+ bool EmitEHFrame;
+ bool EmitDebugFrame;
std::vector<MCDwarfFrameInfo> FrameInfos;
MCDwarfFrameInfo *getCurrentFrameInfo();
+ MCSymbol *EmitCFICommon();
void EnsureValidFrame();
- const MCSymbol* LastNonPrivate;
+ 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.
protected:
MCStreamer(MCContext &Ctx);
+ const MCExpr *BuildSymbolDiff(MCContext &Context, const MCSymbol *A,
+ const MCSymbol *B);
+
+ const MCExpr *ForceExpAbs(const MCExpr* Expr);
+
+ void RecordProcStart(MCDwarfFrameInfo &Frame);
+ virtual void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame);
+ void RecordProcEnd(MCDwarfFrameInfo &Frame);
+ virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &CurFrame);
+ 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;
/// used in an assignment.
virtual void EmitLabel(MCSymbol *Symbol);
- /// EmitAssemblerFlag - Note in the output the specified @p Flag
+ virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
+ MCSymbol *EHSymbol);
+
+ /// EmitAssemblerFlag - Note in the output the specified @p Flag.
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) = 0;
+ /// EmitDataRegion - Note in the output the specified region @p Kind.
+ virtual void EmitDataRegion(MCDataRegionType Kind) {}
+
/// EmitThumbFunc - Note in the output that the specified @p Func is
/// a Thumb mode function (ARM target only).
virtual void EmitThumbFunc(MCSymbol *Func) = 0;
/// EndCOFFSymbolDef - Marks the end of the symbol definition.
virtual void EndCOFFSymbolDef() = 0;
+ /// EmitCOFFSecRel32 - Emits a COFF section relative relocation.
+ ///
+ /// @param Symbol - Symbol the section relative realocation should point to.
+ virtual void EmitCOFFSecRel32(MCSymbol const *Symbol);
+
/// EmitELFSize - Emit an ELF .size directive.
///
/// This corresponds to an assembler statement such as:
///
/// @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.
///
/// @param ByteAlignment - The alignment of the zerofill symbol if
/// non-zero. This must be a power of 2 on some targets.
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- unsigned Size = 0,unsigned ByteAlignment = 0) = 0;
+ uint64_t Size = 0,unsigned ByteAlignment = 0) = 0;
/// EmitTBSSSymbol - Emit a thread local bss (.tbss) 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
/// @{
- /// EmitBytes - Emit the bytes in \arg Data into the output.
+ /// EmitBytes - Emit the bytes in \p Data into the output.
///
/// This is used to implement assembler directives such as .byte, .ascii,
/// etc.
/// @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,
/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
- void EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace = 0);
+ void EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace = 0,
+ unsigned Padding = 0);
/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
/// client having to pass in a MCExpr for constant integers.
void EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
unsigned AddrSpace = 0);
- void EmitPCRelSymbolValue(const MCSymbol *Sym, unsigned Size,
- unsigned AddrSpace = 0);
+ /// EmitGPRel64Value - Emit the expression @p Value into the output as a
+ /// gprel64 (64-bit GP relative) value.
+ ///
+ /// This is used to implement assembler directives such as .gpdword on
+ /// targets that support them.
+ virtual void EmitGPRel64Value(const MCExpr *Value);
/// EmitGPRel32Value - Emit the expression @p Value into the output as a
/// gprel32 (32-bit GP relative) value.
/// @param Offset - The offset to reach. This may be an expression, but the
/// expression must be associated with the current section.
/// @param Value - The value to use when filling bytes.
- virtual void EmitValueToOffset(const MCExpr *Offset,
+ /// @return false on success, true if the offset was invalid.
+ virtual bool EmitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0) = 0;
/// @}
/// EmitDwarfFileDirective - Associate a filename with a specified logical
/// file number. This implements the DWARF2 '.file 4 "foo.c"' assembler
/// directive.
- virtual bool EmitDwarfFileDirective(unsigned FileNo,StringRef Filename);
+ virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename);
/// EmitDwarfLocDirective - This implements the DWARF2
// '.loc fileno lineno ...' assembler directive.
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 EmitCFIStartProc();
- virtual void EmitCFIEndProc();
+ virtual void EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding);
+ virtual void EmitCFISections(bool EH, bool Debug);
+ void EmitCFIStartProc();
+ void EmitCFIEndProc();
virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
virtual void EmitCFIDefCfaOffset(int64_t Offset);
virtual void EmitCFIDefCfaRegister(int64_t Register);
virtual void EmitCFIRememberState();
virtual void EmitCFIRestoreState();
virtual void EmitCFISameValue(int64_t Register);
+ virtual void EmitCFIRestore(int64_t Register);
virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
+ virtual void EmitCFIEscape(StringRef Values);
+ virtual void EmitCFISignalFrame();
+ virtual void EmitCFIUndefined(int64_t Register);
+ virtual void EmitCFIRegister(int64_t Register1, int64_t Register2);
+
+ 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 EmitRegSave(const SmallVectorImpl<unsigned> &RegList,
bool isVector);
+ /// PPC-related methods.
+ /// FIXME: Eventually replace it with some "target MC streamer" and move
+ /// these methods there.
+ virtual void EmitTCEntry(const MCSymbol &S);
+
+ /// FinishImpl - Streamer specific finalization.
+ virtual void FinishImpl() = 0;
/// Finish - Finish emission of machine code.
- virtual void Finish() = 0;
+ void Finish();
};
/// createNullStreamer - Create a dummy machine code streamer, which does
/// InstPrint.
///
/// \param CE - If given, a code emitter to use to show the instruction
- /// encoding inline with the assembly. This method takes ownership of \arg CE.
+ /// encoding inline with the assembly. This method takes ownership of \p CE.
///
/// \param TAB - If given, a target asm backend to use to show the fixup
/// information in conjunction with encoding information. This method takes
- /// ownership of \arg TAB.
+ /// ownership of \p TAB.
///
/// \param ShowInst - Whether to show the MCInst representation inline with
/// the assembly.
MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
bool isVerboseAsm,
bool useLoc,
+ bool useCFI,
+ bool useDwarfDirectory,
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,
+ /// Takes ownership of \p TAB and \p CE.
+ MCStreamer *createMachOStreamer(MCContext &Ctx, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *CE,
bool RelaxAll = false);
/// createWinCOFFStreamer - Create a machine code streamer which will
/// generate Microsoft COFF format object files.
///
- /// Takes ownership of \arg TAB and \arg CE.
+ /// Takes ownership of \p TAB and \p 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,
- raw_ostream &OS, MCCodeEmitter *CE,
- bool RelaxAll, bool NoExecStack);
-
- /// createLoggingStreamer - Create a machine code streamer which just logs the
- /// API calls and then dispatches to another streamer.
- ///
- /// The new streamer takes ownership of the \arg Child.
- MCStreamer *createLoggingStreamer(MCStreamer *Child, raw_ostream &OS);
+ MCStreamer *createELFStreamer(MCContext &Ctx, MCAsmBackend &TAB,
+ raw_ostream &OS, MCCodeEmitter *CE,
+ bool RelaxAll, bool NoExecStack);
/// createPureStreamer - Create a machine code streamer which will generate
/// "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,
+ /// Takes ownership of \p TAB and \p CE.
+ MCStreamer *createPureStreamer(MCContext &Ctx, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *CE);
} // end namespace llvm
projects / oota-llvm.git / blobdiff