lib/MC/MCLoggingStreamer.cpp

   1 //===- lib/MC/MCLoggingStreamer.cpp - API Logging Streamer ----------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/MC/MCStreamer.h"
  11 #include "llvm/ADT/OwningPtr.h"
  12 #include "llvm/ADT/Twine.h"
  13 #include "llvm/Support/raw_ostream.h"
  14 using namespace llvm;
  15
  16 namespace {
  17
  18 class MCLoggingStreamer : public MCStreamer {
  19   llvm::OwningPtr<MCStreamer> Child;
  20
  21   raw_ostream &OS;
  22
  23 public:
  24   MCLoggingStreamer(MCStreamer *_Child, raw_ostream &_OS)
  25     : MCStreamer(_Child->getContext()), Child(_Child), OS(_OS) {}
  26
  27   void LogCall(const char *Function) {
  28     OS << Function << "\n";
  29   }
  30
  31   void LogCall(const char *Function, const Twine &Message) {
  32     OS << Function << ": " << Message << "\n";
  33   }
  34
  35   virtual bool isVerboseAsm() const { return Child->isVerboseAsm(); }
  36
  37   virtual bool hasRawTextSupport() const { return Child->hasRawTextSupport(); }
  38
  39   virtual raw_ostream &GetCommentOS() { return Child->GetCommentOS(); }
  40
  41   virtual void AddComment(const Twine &T) {
  42     LogCall("AddComment", T);
  43     return Child->AddComment(T);
  44   }
  45
  46   virtual void AddBlankLine() {
  47     LogCall("AddBlankLine");
  48     return Child->AddBlankLine();
  49   }
  50
  51   virtual void ChangeSection(const MCSection *Section) {
  52     LogCall("ChangeSection");
  53     return Child->ChangeSection(Section);
  54   }
  55
  56   virtual void InitSections() {
  57     LogCall("InitSections");
  58     return Child->InitSections();
  59   }
  60
  61   virtual void EmitLabel(MCSymbol *Symbol) {
  62     LogCall("EmitLabel");
  63     return Child->EmitLabel(Symbol);
  64   }
  65
  66   virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {
  67     LogCall("EmitAssemblerFlag");
  68     return Child->EmitAssemblerFlag(Flag);
  69   }
  70
  71   virtual void EmitThumbFunc(MCSymbol *Func) {
  72     LogCall("EmitThumbFunc");
  73     return Child->EmitThumbFunc(Func);
  74   }
  75
  76   virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
  77     LogCall("EmitAssignment");
  78     return Child->EmitAssignment(Symbol, Value);
  79   }
  80
  81   virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
  82     LogCall("EmitWeakReference");
  83     return Child->EmitWeakReference(Alias, Symbol);
  84   }
  85
  86   virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
  87                                         const MCSymbol *LastLabel,
  88                                         const MCSymbol *Label) {
  89     LogCall("EmitDwarfAdvanceLineAddr");
  90     return Child->EmitDwarfAdvanceLineAddr(LineDelta, LastLabel, Label);
  91   }
  92
  93   virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
  94     LogCall("EmitSymbolAttribute");
  95     return Child->EmitSymbolAttribute(Symbol, Attribute);
  96   }
  97
  98   virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
  99     LogCall("EmitSymbolDesc");
 100     return Child->EmitSymbolDesc(Symbol, DescValue);
 101   }
 102
 103   virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {
 104     LogCall("BeginCOFFSymbolDef");
 105     return Child->BeginCOFFSymbolDef(Symbol);
 106   }
 107
 108   virtual void EmitCOFFSymbolStorageClass(int StorageClass) {
 109     LogCall("EmitCOFFSymbolStorageClass");
 110     return Child->EmitCOFFSymbolStorageClass(StorageClass);
 111   }
 112
 113   virtual void EmitCOFFSymbolType(int Type) {
 114     LogCall("EmitCOFFSymbolType");
 115     return Child->EmitCOFFSymbolType(Type);
 116   }
 117
 118   virtual void EndCOFFSymbolDef() {
 119     LogCall("EndCOFFSymbolDef");
 120     return Child->EndCOFFSymbolDef();
 121   }
 122
 123   virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
 124     LogCall("EmitELFSize");
 125     return Child->EmitELFSize(Symbol, Value);
 126   }
 127
 128   virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
 129                                 unsigned ByteAlignment) {
 130     LogCall("EmitCommonSymbol");
 131     return Child->EmitCommonSymbol(Symbol, Size, ByteAlignment);
 132   }
 133
 134   virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
 135     LogCall("EmitLocalCommonSymbol");
 136     return Child->EmitLocalCommonSymbol(Symbol, Size);
 137   }
 138
 139   virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
 140                             unsigned Size = 0, unsigned ByteAlignment = 0) {
 141     LogCall("EmitZerofill");
 142     return Child->EmitZerofill(Section, Symbol, Size, ByteAlignment);
 143   }
 144
 145   virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
 146                                uint64_t Size, unsigned ByteAlignment = 0) {
 147     LogCall("EmitTBSSSymbol");
 148     return Child->EmitTBSSSymbol(Section, Symbol, Size, ByteAlignment);
 149   }
 150
 151   virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {
 152     LogCall("EmitBytes");
 153     return Child->EmitBytes(Data, AddrSpace);
 154   }
 155
 156   virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
 157                              unsigned AddrSpace){
 158     LogCall("EmitValue");
 159     return Child->EmitValueImpl(Value, Size, AddrSpace);
 160   }
 161
 162   virtual void EmitULEB128Value(const MCExpr *Value) {
 163     LogCall("EmitULEB128Value");
 164     return Child->EmitULEB128Value(Value);
 165   }
 166
 167   virtual void EmitSLEB128Value(const MCExpr *Value) {
 168     LogCall("EmitSLEB128Value");
 169     return Child->EmitSLEB128Value(Value);
 170   }
 171
 172   virtual void EmitGPRel32Value(const MCExpr *Value) {
 173     LogCall("EmitGPRel32Value");
 174     return Child->EmitGPRel32Value(Value);
 175   }
 176
 177   virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
 178                         unsigned AddrSpace) {
 179     LogCall("EmitFill");
 180     return Child->EmitFill(NumBytes, FillValue, AddrSpace);
 181   }
 182
 183   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
 184                                     unsigned ValueSize = 1,
 185                                     unsigned MaxBytesToEmit = 0) {
 186     LogCall("EmitValueToAlignment");
 187     return Child->EmitValueToAlignment(ByteAlignment, Value,
 188                                        ValueSize, MaxBytesToEmit);
 189   }
 190
 191   virtual void EmitCodeAlignment(unsigned ByteAlignment,
 192                                  unsigned MaxBytesToEmit = 0) {
 193     LogCall("EmitCodeAlignment");
 194     return Child->EmitCodeAlignment(ByteAlignment, MaxBytesToEmit);
 195   }
 196
 197   virtual void EmitValueToOffset(const MCExpr *Offset,
 198                                  unsigned char Value = 0) {
 199     LogCall("EmitValueToOffset");
 200     return Child->EmitValueToOffset(Offset, Value);
 201   }
 202
 203   virtual void EmitFileDirective(StringRef Filename) {
 204     LogCall("EmitFileDirective", "FileName:" + Filename);
 205     return Child->EmitFileDirective(Filename);
 206   }
 207
 208   virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename) {
 209     LogCall("EmitDwarfFileDirective",
 210             "FileNo:" + Twine(FileNo) + " Filename:" + Filename);
 211     return Child->EmitDwarfFileDirective(FileNo, Filename);
 212   }
 213
 214   virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
 215                                      unsigned Column, unsigned Flags,
 216                                      unsigned Isa, unsigned Discriminator,
 217                                      StringRef FileName) {
 218     LogCall("EmitDwarfLocDirective",
 219             "FileNo:" + Twine(FileNo) + " Line:" + Twine(Line) +
 220             " Column:" + Twine(Column) + " Flags:" + Twine(Flags) +
 221             " Isa:" + Twine(Isa) + " Discriminator:" + Twine(Discriminator));
 222             return Child->EmitDwarfLocDirective(FileNo, Line, Column, Flags,
 223                                                 Isa, Discriminator, FileName);
 224   }
 225
 226   virtual void EmitInstruction(const MCInst &Inst) {
 227     LogCall("EmitInstruction");
 228     return Child->EmitInstruction(Inst);
 229   }
 230
 231   virtual void EmitRawText(StringRef String) {
 232     LogCall("EmitRawText", "\"" + String + "\"");
 233     return Child->EmitRawText(String);
 234   }
 235
 236   virtual void Finish() {
 237     LogCall("Finish");
 238     return Child->Finish();
 239   }
 240
 241 };
 242
 243 } // end anonymous namespace.
 244
 245 MCStreamer *llvm::createLoggingStreamer(MCStreamer *Child, raw_ostream &OS) {
 246   return new MCLoggingStreamer(Child, OS);
 247 }