#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/ErrorHandling.h"
class MCAsmStreamer : public MCStreamer {
formatted_raw_ostream &OS;
const MCAsmInfo &MAI;
- MCInstPrinter *InstPrinter;
+ OwningPtr<MCInstPrinter> InstPrinter;
MCCodeEmitter *Emitter;
SmallString<128> CommentToEmit;
public:
MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- const MCAsmInfo &mai,
bool isLittleEndian, bool isVerboseAsm, MCInstPrinter *printer,
MCCodeEmitter *emitter, bool showInst)
- : MCStreamer(Context), OS(os), MAI(mai), InstPrinter(printer),
- Emitter(emitter), CommentStream(CommentToEmit),
+ : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
+ InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
IsLittleEndian(isLittleEndian), IsVerboseAsm(isVerboseAsm),
ShowInst(showInst) {
if (InstPrinter && IsVerboseAsm)
/// isVerboseAsm - Return true if this streamer supports verbose assembly at
/// all.
virtual bool isVerboseAsm() const { return IsVerboseAsm; }
+
+ /// hasRawTextSupport - We support EmitRawText.
+ virtual bool hasRawTextSupport() const { return true; }
/// AddComment - Add a comment that can be emitted to the generated .s
/// file if applicable as a QoI issue to make the output of the compiler
virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
-
+ virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
+ virtual void EmitCOFFSymbolStorageClass(int StorageClass);
+ virtual void EmitCOFFSymbolType(int Type);
+ virtual void EndCOFFSymbolDef();
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment);
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
unsigned Size = 0, unsigned ByteAlignment = 0);
+ virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment = 0);
+
virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
unsigned ValueSize = 1,
unsigned MaxBytesToEmit = 0);
+ virtual void EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit = 0);
+
virtual void EmitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0);
virtual void EmitInstruction(const MCInst &Inst);
+ /// EmitRawText - If this file is backed by a assembly streamer, this dumps
+ /// the specified string in the output .s file. This capability is
+ /// indicated by the hasRawTextSupport() predicate.
+ virtual void EmitRawText(StringRef String);
+
virtual void Finish();
/// @}
CommentStream.resync();
}
-
static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
assert(Bytes && "Invalid size!");
return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
+ assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(CurSection && "Cannot emit before setting section!");
OS << *Symbol << ":";
}
void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- // Only absolute symbols can be redefined.
- assert((Symbol->isUndefined() || Symbol->isAbsolute()) &&
- "Cannot define a symbol twice!");
-
OS << *Symbol << " = " << *Value;
EmitEOL();
// FIXME: Lift context changes into super class.
- // FIXME: Set associated section.
- Symbol->setValue(Value);
+ Symbol->setVariableValue(Value);
}
void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
EmitEOL();
}
+void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
+ OS << "\t.def\t " << *Symbol << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {
+ OS << "\t.scl\t" << StorageClass << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCOFFSymbolType (int Type) {
+ OS << "\t.type\t" << Type << ';';
+ EmitEOL();
+}
+
+void MCAsmStreamer::EndCOFFSymbolDef() {
+ OS << "\t.endef";
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
assert(MAI.hasDotTypeDotSizeDirective());
OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
EmitEOL();
}
+// .tbss sym, size, align
+// This depends that the symbol has already been mangled from the original,
+// e.g. _a.
+void MCAsmStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment) {
+ assert(Symbol != NULL && "Symbol shouldn't be NULL!");
+ // Instead of using the Section we'll just use the shortcut.
+ // This is a mach-o specific directive and section.
+ OS << ".tbss " << *Symbol << ", " << Size;
+
+ // Output align if we have it. We default to 1 so don't bother printing
+ // that.
+ if (ByteAlignment > 1) OS << ", " << Log2_32(ByteAlignment);
+
+ EmitEOL();
+}
+
static inline char toOctal(int X) { return (X&7)+'0'; }
static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
EmitEOL();
}
+void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit) {
+ // Emit with a text fill value.
+ EmitValueToAlignment(ByteAlignment, MAI.getTextAlignFillValue(),
+ 1, MaxBytesToEmit);
+}
+
void MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
// FIXME: Verify that Offset is associated with the current section.
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
MCFixup &F = Fixups[i];
- MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
+ const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
for (unsigned j = 0; j != Info.TargetSize; ++j) {
unsigned Index = F.getOffset() * 8 + Info.TargetOffset + j;
assert(Index < Code.size() * 8 && "Invalid offset in fixup!");
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
MCFixup &F = Fixups[i];
- MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
+ const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind());
OS << " fixup " << char('A' + i) << " - " << "offset: " << F.getOffset()
- << ", op: " << F.getOpIndex() << ", kind: " << Info.Name << "\n";
+ << ", value: " << *F.getValue() << ", kind: " << Info.Name << "\n";
}
}
// Show the MCInst if enabled.
if (ShowInst) {
- raw_ostream &OS = GetCommentOS();
- OS << "<MCInst #" << Inst.getOpcode();
-
- for (unsigned i = 0, e = Inst.getNumOperands(); i != e; ++i) {
- OS << "\n ";
- Inst.getOperand(i).print(OS, &MAI);
- }
- OS << ">\n";
+ Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
+ GetCommentOS() << "\n";
}
-
- // If we have an AsmPrinter, use that to print, otherwise dump the MCInst.
+
+ // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
if (InstPrinter)
- InstPrinter->printInst(&Inst);
+ InstPrinter->printInst(&Inst, OS);
else
Inst.print(OS, &MAI);
EmitEOL();
}
+/// EmitRawText - If this file is backed by a assembly streamer, this dumps
+/// the specified string in the output .s file. This capability is
+/// indicated by the hasRawTextSupport() predicate.
+void MCAsmStreamer::EmitRawText(StringRef String) {
+ if (!String.empty() && String.back() == '\n')
+ String = String.substr(0, String.size()-1);
+ OS << String;
+ EmitEOL();
+}
+
void MCAsmStreamer::Finish() {
- OS.flush();
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
- const MCAsmInfo &MAI, bool isLittleEndian,
+ bool isLittleEndian,
bool isVerboseAsm, MCInstPrinter *IP,
MCCodeEmitter *CE, bool ShowInst) {
- return new MCAsmStreamer(Context, OS, MAI, isLittleEndian, isVerboseAsm,
+ return new MCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm,
IP, CE, ShowInst);
}
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