split MCSection stuff out to its own .cpp file, add a new

MCSectionWithKind subclass of MCSection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77684 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/MC/MCSection.h

@@ -17,24 +17,45 @@
 #include <string>
 #include "llvm/ADT/StringRef.h"
 
+// FIXME: HORRIBLE HACK: major layering violation to get an enum.
+#include "llvm/Target/TargetLoweringObjectFile.h"
+
 namespace llvm {
+  class MCContext;
   
   /// MCSection - Instances of this class represent a uniqued identifier for a
   /// section in the current translation unit.  The MCContext class uniques and
   /// creates these.
   class MCSection {
     std::string Name;
-  private:
     MCSection(const MCSection&);      // DO NOT IMPLEMENT
     void operator=(const MCSection&); // DO NOT IMPLEMENT
-    MCSection(const StringRef &_Name, MCContext &Ctx);
+  protected:
+    MCSection(const StringRef &Name, MCContext &Ctx);
   public:
+    virtual ~MCSection();
 
-    static MCSection *Create(const StringRef &_Name, MCContext &Ctx);
+    static MCSection *Create(const StringRef &Name, MCContext &Ctx);
     
     const std::string &getName() const { return Name; }
   };
 
+  /// MCSectionWithKind - This is used by targets that use the SectionKind enum
+  /// to classify their sections.
+  class MCSectionWithKind : public MCSection {
+    SectionKind Kind;
+    MCSectionWithKind(const StringRef &Name, SectionKind K, MCContext &Ctx) 
+      : MCSection(Name, Ctx), Kind(K) {}
+  public:
+    
+    static MCSectionWithKind *Create(const StringRef &Name, SectionKind K,
+                                     MCContext &Ctx);
+
+    SectionKind getKind() const { return Kind; }
+  };
+  
+  
+  
 } // end namespace llvm
 
 #endif

lib/MC/CMakeLists.txt

@@ -3,6 +3,7 @@ add_llvm_library(LLVMMC
   MCAsmParser.cpp
   MCAsmStreamer.cpp
   MCContext.cpp
+  MCSection.cpp
   MCStreamer.cpp
   TargetAsmParser.cpp
   )

lib/MC/MCContext.cpp

@@ -25,18 +25,6 @@ MCSection *MCContext::GetSection(const StringRef &Name) const {
   return I != Sections.end() ? I->second : 0;
 }
 
-
-MCSection::MCSection(const StringRef &_Name, MCContext &Ctx) : Name(_Name) {
-  MCSection *&Entry = Ctx.Sections[Name];
-  assert(Entry == 0 && "Multiple sections with the same name created");
-  Entry = this;
-}
-
-MCSection *MCSection::Create(const StringRef &Name, MCContext &Ctx) {
-  return new (Ctx) MCSection(Name, Ctx);
-}
-
-
 MCSymbol *MCContext::CreateSymbol(const StringRef &Name) {
   assert(Name[0] != '\0' && "Normal symbols cannot be unnamed!");
 

lib/MC/MCSection.cpp

@@ -0,0 +1,31 @@
+//===- lib/MC/MCSection.cpp - Machine Code Section Representation ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCContext.h"
+using namespace llvm;
+
+MCSection::~MCSection() {
+}
+
+MCSection::MCSection(const StringRef &N, MCContext &Ctx) : Name(N) {
+  MCSection *&Entry = Ctx.Sections[Name];
+  assert(Entry == 0 && "Multiple sections with the same name created");
+  Entry = this;
+}
+
+MCSection *MCSection::Create(const StringRef &Name, MCContext &Ctx) {
+  return new (Ctx) MCSection(Name, Ctx);
+}
+
+
+MCSectionWithKind *
+MCSectionWithKind::Create(const StringRef &Name, SectionKind K, MCContext &Ctx){
+  return new (Ctx) MCSectionWithKind(Name, K, Ctx);
+}