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//===-- PPCMachOWriterInfo.h - Mach-O Writer Info for PowerPC ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Bill Wendling and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements Mach-O writer information for the PowerPC backend.
//
//===----------------------------------------------------------------------===//
#ifndef PPC_MACHO_WRITER_INFO_H
#define PPC_MACHO_WRITER_INFO_H
#include "llvm/Target/TargetMachOWriterInfo.h"
namespace llvm {
// Forward declarations
class MachineRelocation;
class OutputBuffer;
class PPCTargetMachine;
class PPCMachOWriterInfo : public TargetMachOWriterInfo {
public:
PPCMachOWriterInfo(const PPCTargetMachine &TM);
virtual ~PPCMachOWriterInfo();
virtual unsigned GetTargetRelocation(MachineRelocation &MR,
unsigned FromIdx,
unsigned ToAddr,
unsigned ToIdx,
OutputBuffer &RelocOut,
OutputBuffer &SecOut,
bool Scattered, bool Extern) const;
// Constants for the relocation r_type field.
// See <mach-o/ppc/reloc.h>
enum {
PPC_RELOC_VANILLA, // generic relocation
PPC_RELOC_PAIR, // the second relocation entry of a pair
PPC_RELOC_BR14, // 14 bit branch displacement to word address
PPC_RELOC_BR24, // 24 bit branch displacement to word address
PPC_RELOC_HI16, // a PAIR follows with the low 16 bits
PPC_RELOC_LO16, // a PAIR follows with the high 16 bits
PPC_RELOC_HA16, // a PAIR follows, which is sign extended to 32b
PPC_RELOC_LO14 // LO16 with low 2 bits implicitly zero
};
};
} // end llvm namespace
#endif // PPC_MACHO_WRITER_INFO_H
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