#define LLVM_MC_MCOBJECTWRITER_H
#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/DataTypes.h"
#include <cassert>
namespace llvm {
-class MCAsmFixup;
+class MCAsmLayout;
class MCAssembler;
+class MCFixup;
class MCFragment;
+class MCSymbolData;
+class MCSymbolRefExpr;
class MCValue;
-class raw_ostream;
/// MCObjectWriter - Defines the object file and target independent interfaces
/// used by the assembler backend to write native file format object files.
/// The object writer also contains a number of helper methods for writing
/// binary data to the output stream.
class MCObjectWriter {
- MCObjectWriter(const MCObjectWriter &); // DO NOT IMPLEMENT
- void operator=(const MCObjectWriter &); // DO NOT IMPLEMENT
+ MCObjectWriter(const MCObjectWriter &) LLVM_DELETED_FUNCTION;
+ void operator=(const MCObjectWriter &) LLVM_DELETED_FUNCTION;
protected:
raw_ostream &OS;
public:
virtual ~MCObjectWriter();
- bool isLittleEndian() { return IsLittleEndian; }
+ bool isLittleEndian() const { return IsLittleEndian; }
raw_ostream &getStream() { return OS; }
///
/// This routine is called by the assembler after layout and relaxation is
/// complete.
- virtual void ExecutePostLayoutBinding(MCAssembler &Asm) = 0;
+ virtual void ExecutePostLayoutBinding(MCAssembler &Asm,
+ const MCAsmLayout &Layout) = 0;
/// Record a relocation entry.
///
/// information about the relocation so that it can be emitted during
/// WriteObject().
virtual void RecordRelocation(const MCAssembler &Asm,
+ const MCAsmLayout &Layout,
const MCFragment *Fragment,
- const MCAsmFixup &Fixup, MCValue Target,
+ const MCFixup &Fixup, MCValue Target,
uint64_t &FixedValue) = 0;
+ /// \brief Check whether the difference (A - B) between two symbol
+ /// references is fully resolved.
+ ///
+ /// Clients are not required to answer precisely and may conservatively return
+ /// false, even when a difference is fully resolved.
+ bool
+ IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
+ const MCSymbolRefExpr *A,
+ const MCSymbolRefExpr *B,
+ bool InSet) const;
+
+ virtual bool
+ IsSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
+ const MCSymbolData &DataA,
+ const MCFragment &FB,
+ bool InSet,
+ bool IsPCRel) const;
+
+
/// Write the object file.
///
/// This routine is called by the assembler after layout and relaxation is
- /// complete, fixups have been evaluate and applied, and relocations
+ /// complete, fixups have been evaluated and applied, and relocations
/// generated.
- virtual void WriteObject(const MCAssembler &Asm) = 0;
+ virtual void WriteObject(MCAssembler &Asm,
+ const MCAsmLayout &Layout) = 0;
/// @}
/// @name Binary Output
}
void WriteBytes(StringRef Str, unsigned ZeroFillSize = 0) {
+ assert((ZeroFillSize == 0 || Str.size () <= ZeroFillSize) &&
+ "data size greater than fill size, unexpected large write will occur");
OS << Str;
if (ZeroFillSize)
WriteZeros(ZeroFillSize - Str.size());
}
/// @}
+
};
} // End llvm namespace