[SystemZ] Define DWARF encoding

[oota-llvm.git] / lib / MC / MCPureStreamer.cpp

diff --git a/lib/MC/MCPureStreamer.cpp b/lib/MC/MCPureStreamer.cpp
index 1563bdd107fcaa814894e1db14a942e9b8781cdc..8ae724facb0c21bb94987c1559b2c22a799d5600 100644 (file)
--- a/lib/MC/MCPureStreamer.cpp
+++ b/lib/MC/MCPureStreamer.cpp
@@ -12,9 +12,8 @@
 #include "llvm/MC/MCCodeEmitter.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCObjectFileInfo.h"
 #include "llvm/MC/MCObjectStreamer.h"
-// FIXME: Remove this.
-#include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/ErrorHandling.h"
 
@@ -28,15 +27,17 @@ private:
   virtual void EmitInstToData(const MCInst &Inst);
 
 public:
-  MCPureStreamer(MCContext &Context, MCAsmBackend &TAB,
-                 raw_ostream &OS, MCCodeEmitter *Emitter)
-    : MCObjectStreamer(Context, TAB, OS, Emitter) {}
+  MCPureStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
+                 MCCodeEmitter *Emitter)
+      : MCObjectStreamer(SK_PureStreamer, Context, TAB, OS, Emitter) {}
 
   /// @name MCStreamer Interface
   /// @{
 
   virtual void InitSections();
+  virtual void InitToTextSection();
   virtual void EmitLabel(MCSymbol *Symbol);
+  virtual void EmitDebugLabel(MCSymbol *Symbol);
   virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
                             uint64_t Size = 0, unsigned ByteAlignment = 0);
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
@@ -93,36 +94,40 @@ public:
     report_fatal_error("unsupported directive in pure streamer");
   }
   virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
-                                      StringRef Filename) {
+                                      StringRef Filename, unsigned CUID = 0) {
     report_fatal_error("unsupported directive in pure streamer");
   }
 
   /// @}
+
+  static bool classof(const MCStreamer *S) {
+    return S->getKind() == SK_PureStreamer;
+  }
 };
 
 } // end anonymous namespace.
 
 void MCPureStreamer::InitSections() {
-  // FIMXE: To what!?
-  SwitchSection(getContext().getMachOSection("__TEXT", "__text",
-                                    MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
-                                    0, SectionKind::getText()));
+  InitToTextSection();
+}
 
+void MCPureStreamer::InitToTextSection() {
+  SwitchSection(getContext().getObjectFileInfo()->getTextSection());
 }
 
 void MCPureStreamer::EmitLabel(MCSymbol *Symbol) {
   assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
   assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
-  assert(getCurrentSection() && "Cannot emit before setting section!");
+  assert(getCurrentSection().first && "Cannot emit before setting section!");
 
-  Symbol->setSection(*getCurrentSection());
+  Symbol->setSection(*getCurrentSection().first);
 
   MCSymbolData &SD = getAssembler().getOrCreateSymbolData(*Symbol);
 
   // We have to create a new fragment if this is an atom defining symbol,
   // fragments cannot span atoms.
   if (getAssembler().isSymbolLinkerVisible(SD.getSymbol()))
-    new MCDataFragment(getCurrentSectionData());
+    insert(new MCDataFragment());
 
   // FIXME: This is wasteful, we don't necessarily need to create a data
   // fragment. Instead, we should mark the symbol as pointing into the data
@@ -134,6 +139,11 @@ void MCPureStreamer::EmitLabel(MCSymbol *Symbol) {
   SD.setOffset(F->getContents().size());
 }
 
+
+void MCPureStreamer::EmitDebugLabel(MCSymbol *Symbol) {
+  EmitLabel(Symbol);
+}
+
 void MCPureStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
                                   uint64_t Size, unsigned ByteAlignment) {
   report_fatal_error("not yet implemented in pure streamer");
@@ -152,8 +162,7 @@ void MCPureStreamer::EmitValueToAlignment(unsigned ByteAlignment,
   // MCObjectStreamer.
   if (MaxBytesToEmit == 0)
     MaxBytesToEmit = ByteAlignment;
-  new MCAlignFragment(ByteAlignment, Value, ValueSize, MaxBytesToEmit,
-                      getCurrentSectionData());
+  insert(new MCAlignFragment(ByteAlignment, Value, ValueSize, MaxBytesToEmit));
 
   // Update the maximum alignment on the current section if necessary.
   if (ByteAlignment > getCurrentSectionData()->getAlignment())
@@ -166,8 +175,8 @@ void MCPureStreamer::EmitCodeAlignment(unsigned ByteAlignment,
   // MCObjectStreamer.
   if (MaxBytesToEmit == 0)
     MaxBytesToEmit = ByteAlignment;
-  MCAlignFragment *F = new MCAlignFragment(ByteAlignment, 0, 1, MaxBytesToEmit,
-                                           getCurrentSectionData());
+  MCAlignFragment *F = new MCAlignFragment(ByteAlignment, 0, 1, MaxBytesToEmit);
+  insert(F);
   F->setEmitNops(true);
 
   // Update the maximum alignment on the current section if necessary.
@@ -177,12 +186,13 @@ void MCPureStreamer::EmitCodeAlignment(unsigned ByteAlignment,
 
 bool MCPureStreamer::EmitValueToOffset(const MCExpr *Offset,
                                        unsigned char Value) {
-  new MCOrgFragment(*Offset, Value, getCurrentSectionData());
+  insert(new MCOrgFragment(*Offset, Value));
   return false;
 }
 
 void MCPureStreamer::EmitInstToFragment(const MCInst &Inst) {
-  MCInstFragment *IF = new MCInstFragment(Inst, getCurrentSectionData());
+  MCRelaxableFragment *IF = new MCRelaxableFragment(Inst);
+  insert(IF);
 
   // Add the fixups and data.
   //