MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104463 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 9a776ed..48c4240 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -69,6 +69,8 @@
cl::desc("Show encoding in .s output"));
static cl::opt<bool> ShowMCInst("show-mc-inst", cl::Hidden,
cl::desc("Show instruction structure in .s output"));
+static cl::opt<bool> EnableMCLogging("enable-mc-api-logging", cl::Hidden,
+ cl::desc("Enable MC API logging"));
static cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden,
cl::desc("Verify generated machine code"),
cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL));
@@ -168,7 +170,10 @@
AsmStreamer.reset(createNullStreamer(*Context));
break;
}
-
+
+ if (EnableMCLogging)
+ AsmStreamer.reset(createLoggingStreamer(AsmStreamer.take(), errs()));
+
// Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer);
if (Printer == 0)
diff --git a/lib/MC/CMakeLists.txt b/lib/MC/CMakeLists.txt
index af979f7..5e8a3b6 100644
--- a/lib/MC/CMakeLists.txt
+++ b/lib/MC/CMakeLists.txt
@@ -11,6 +11,7 @@
MCInst.cpp
MCInstPrinter.cpp
MCLabel.cpp
+ MCLoggingStreamer.cpp
MCMachOStreamer.cpp
MCNullStreamer.cpp
MCObjectWriter.cpp
diff --git a/lib/MC/MCLoggingStreamer.cpp b/lib/MC/MCLoggingStreamer.cpp
new file mode 100644
index 0000000..b96040a
--- /dev/null
+++ b/lib/MC/MCLoggingStreamer.cpp
@@ -0,0 +1,208 @@
+//===- lib/MC/MCLoggingStreamer.cpp - API Logging Streamer ----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+namespace {
+
+class MCLoggingStreamer : public MCStreamer {
+ llvm::OwningPtr<MCStreamer> Child;
+
+ raw_ostream &OS;
+
+public:
+ MCLoggingStreamer(MCStreamer *_Child, raw_ostream &_OS)
+ : MCStreamer(_Child->getContext()), Child(_Child), OS(_OS) {}
+
+ void LogCall(const char *Function) {
+ OS << Function << "\n";
+ }
+
+ void LogCall(const char *Function, const Twine &Message) {
+ OS << Function << ": " << Message << "\n";
+ }
+
+ virtual bool isVerboseAsm() const { return Child->isVerboseAsm(); }
+
+ virtual bool hasRawTextSupport() const { return Child->hasRawTextSupport(); }
+
+ virtual raw_ostream &GetCommentOS() { return Child->GetCommentOS(); }
+
+ virtual void AddComment(const Twine &T) {
+ LogCall("AddComment", T);
+ return Child->AddComment(T);
+ }
+
+ virtual void AddBlankLine() {
+ LogCall("AddBlankLine");
+ return Child->AddBlankLine();
+ }
+
+ virtual void SwitchSection(const MCSection *Section) {
+ CurSection = Section;
+ LogCall("SwitchSection");
+ return Child->SwitchSection(Section);
+ }
+
+ virtual void EmitLabel(MCSymbol *Symbol) {
+ LogCall("EmitLabel");
+ return Child->EmitLabel(Symbol);
+ }
+
+ virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {
+ LogCall("EmitAssemblerFlag");
+ return Child->EmitAssemblerFlag(Flag);
+ }
+
+ virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
+ LogCall("EmitAssignment");
+ return Child->EmitAssignment(Symbol, Value);
+ }
+
+ virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) {
+ LogCall("EmitSymbolAttribute");
+ return Child->EmitSymbolAttribute(Symbol, Attribute);
+ }
+
+ virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
+ LogCall("EmitSymbolDesc");
+ return Child->EmitSymbolDesc(Symbol, DescValue);
+ }
+
+ virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {
+ LogCall("BeginCOFFSymbolDef");
+ return Child->BeginCOFFSymbolDef(Symbol);
+ }
+
+ virtual void EmitCOFFSymbolStorageClass(int StorageClass) {
+ LogCall("EmitCOFFSymbolStorageClass");
+ return Child->EmitCOFFSymbolStorageClass(StorageClass);
+ }
+
+ virtual void EmitCOFFSymbolType(int Type) {
+ LogCall("EmitCOFFSymbolType");
+ return Child->EmitCOFFSymbolType(Type);
+ }
+
+ virtual void EndCOFFSymbolDef() {
+ LogCall("EndCOFFSymbolDef");
+ return Child->EndCOFFSymbolDef();
+ }
+
+ virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+ LogCall("EmitELFSize");
+ return Child->EmitELFSize(Symbol, Value);
+ }
+
+ virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment) {
+ LogCall("EmitCommonSymbol");
+ return Child->EmitCommonSymbol(Symbol, Size, ByteAlignment);
+ }
+
+ virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
+ LogCall("EmitLocalCommonSymbol");
+ return Child->EmitLocalCommonSymbol(Symbol, Size);
+ }
+
+ virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
+ unsigned Size = 0, unsigned ByteAlignment = 0) {
+ LogCall("EmitZerofill");
+ return Child->EmitZerofill(Section, Symbol, Size, ByteAlignment);
+ }
+
+ virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
+ uint64_t Size, unsigned ByteAlignment = 0) {
+ LogCall("EmitTBSSSymbol");
+ return Child->EmitTBSSSymbol(Section, Symbol, Size, ByteAlignment);
+ }
+
+ virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {
+ LogCall("EmitBytes");
+ return Child->EmitBytes(Data, AddrSpace);
+ }
+
+ virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace){
+ LogCall("EmitValue");
+ return Child->EmitValue(Value, Size, AddrSpace);
+ }
+
+ virtual void EmitIntValue(uint64_t Value, unsigned Size, unsigned AddrSpace) {
+ LogCall("EmitIntValue");
+ return Child->EmitIntValue(Value, Size, AddrSpace);
+ }
+
+ virtual void EmitGPRel32Value(const MCExpr *Value) {
+ LogCall("EmitGPRel32Value");
+ return Child->EmitGPRel32Value(Value);
+ }
+
+ virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
+ unsigned AddrSpace) {
+ LogCall("EmitFill");
+ return Child->EmitFill(NumBytes, FillValue, AddrSpace);
+ }
+
+ virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
+ unsigned ValueSize = 1,
+ unsigned MaxBytesToEmit = 0) {
+ LogCall("EmitValueToAlignment");
+ return Child->EmitValueToAlignment(ByteAlignment, Value,
+ ValueSize, MaxBytesToEmit);
+ }
+
+ virtual void EmitCodeAlignment(unsigned ByteAlignment,
+ unsigned MaxBytesToEmit = 0) {
+ LogCall("EmitCodeAlignment");
+ return Child->EmitCodeAlignment(ByteAlignment, MaxBytesToEmit);
+ }
+
+ virtual void EmitValueToOffset(const MCExpr *Offset,
+ unsigned char Value = 0) {
+ LogCall("EmitValueToOffset");
+ return Child->EmitValueToOffset(Offset, Value);
+ }
+
+ virtual void EmitFileDirective(StringRef Filename) {
+ LogCall("EmitFileDirective", "FileName:" + Filename);
+ return Child->EmitFileDirective(Filename);
+ }
+
+ virtual void EmitDwarfFileDirective(unsigned FileNo, StringRef Filename) {
+ LogCall("EmitDwarfFileDirective",
+ "FileNo:" + Twine(FileNo) + " Filename:" + Filename);
+ return Child->EmitDwarfFileDirective(FileNo, Filename);
+ }
+
+ virtual void EmitInstruction(const MCInst &Inst) {
+ LogCall("EmitInstruction");
+ return Child->EmitInstruction(Inst);
+ }
+
+ virtual void EmitRawText(StringRef String) {
+ LogCall("EmitRawText", "\"" + String + "\"");
+ return Child->EmitRawText(String);
+ }
+
+ virtual void Finish() {
+ LogCall("Finish");
+ return Child->Finish();
+ }
+
+};
+
+} // end anonymous namespace.
+
+MCStreamer *llvm::createLoggingStreamer(MCStreamer *Child, raw_ostream &OS) {
+ return new MCLoggingStreamer(Child, OS);
+}