#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/Casting.h"
+#include "llvm/Support/Compiler.h"
namespace llvm {
- class MCContext;
class MCAsmInfo;
class raw_ostream;
};
private:
- MCSection(const MCSection&); // DO NOT IMPLEMENT
- void operator=(const MCSection&); // DO NOT IMPLEMENT
+ MCSection(const MCSection&) LLVM_DELETED_FUNCTION;
+ void operator=(const MCSection&) LLVM_DELETED_FUNCTION;
protected:
MCSection(SectionVariant V, SectionKind K) : Variant(V), Kind(K) {}
SectionVariant Variant;
virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
raw_ostream &OS) 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
+ /// can emit section offsets as direct references to avoid a subtraction
+ /// from the base of the section, saving a relocation.
+ 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;
-
- static bool classof(const MCSection *) { return true; }
};
} // end namespace llvm