X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCSection.h;h=de2678adad61c19bd793495e3d2c90ce9c92d1ed;hb=f36437d945c9376ffbf71cfd43b48427f14cb218;hp=1e2ef1e132d668a915d0b157d77893b3b7e649a2;hpb=eb40a0fd98c44ecc6360e7fab33cf9e9911bed4f;p=oota-llvm.git

diff --git a/include/llvm/MC/MCSection.h b/include/llvm/MC/MCSection.h
index 1e2ef1e132d..de2678adad6 100644
--- a/include/llvm/MC/MCSection.h
+++ b/include/llvm/MC/MCSection.h
@@ -14,31 +14,48 @@
 #ifndef LLVM_MC_MCSECTION_H
 #define LLVM_MC_MCSECTION_H
 
-#include <string>
 #include "llvm/ADT/StringRef.h"
 #include "llvm/MC/SectionKind.h"
+#include "llvm/Support/Compiler.h"
 
 namespace llvm {
-  class MCContext;
   class MCAsmInfo;
+  class MCExpr;
   class raw_ostream;
-  
+
   /// 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 {
-    MCSection(const MCSection&);      // DO NOT IMPLEMENT
-    void operator=(const MCSection&); // DO NOT IMPLEMENT
+  public:
+    enum SectionVariant {
+      SV_COFF = 0,
+      SV_ELF,
+      SV_MachO
+    };
+
+  private:
+    MCSection(const MCSection&) LLVM_DELETED_FUNCTION;
+    void operator=(const MCSection&) LLVM_DELETED_FUNCTION;
   protected:
-    MCSection(SectionKind K) : Kind(K) {}
+    MCSection(SectionVariant V, SectionKind K) : Variant(V), Kind(K) {}
+    SectionVariant Variant;
     SectionKind Kind;
   public:
     virtual ~MCSection();
 
     SectionKind getKind() const { return Kind; }
-    
+
+    SectionVariant getVariant() const { return Variant; }
+
     virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
-                                      raw_ostream &OS) const = 0;
+                                      raw_ostream &OS,
+                                      const MCExpr *Subsection) const = 0;
+
+    // Convenience routines to get label names for the beginning/end of a
+    // section.
+    virtual std::string getLabelBeginName() const = 0;
+    virtual std::string getLabelEndName() const = 0;
 
     /// isBaseAddressKnownZero - Return true if we know that this section will
     /// get a base address of zero.  In cases where we know that this is true we
@@ -47,8 +64,16 @@ namespace llvm {
     virtual bool isBaseAddressKnownZero() const {
       return false;
     }
+
+    // UseCodeAlign - Return true if a .align directive should use
+    // "optimized nops" to fill instead of 0s.
+    virtual bool UseCodeAlign() const = 0;
+
+    /// isVirtualSection - Check whether this section is "virtual", that is
+    /// has no actual object file contents.
+    virtual bool isVirtualSection() const = 0;
   };
-  
+
 } // end namespace llvm
 
 #endif