llvm-6502/lib/Target/PowerPC/PPCRelocations.h

57 lines
1.9 KiB
C++

//===-- PPCRelocations.h - PPC Code Relocations -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the PowerPC 32-bit target-specific relocation types.
//
//===----------------------------------------------------------------------===//
#ifndef PPCRELOCATIONS_H
#define PPCRELOCATIONS_H
#include "llvm/CodeGen/MachineRelocation.h"
// Hack to rid us of a PPC pre-processor symbol which is erroneously
// defined in a PowerPC header file (bug in Linux/PPC)
#ifdef PPC
#undef PPC
#endif
namespace llvm {
namespace PPC {
enum RelocationType {
// reloc_vanilla - A standard relocation, where the address of the
// relocated object completely overwrites the address of the relocation.
reloc_vanilla,
// reloc_pcrel_bx - PC relative relocation, for the b or bl instructions.
reloc_pcrel_bx,
// reloc_pcrel_bcx - PC relative relocation, for BLT,BLE,BEQ,BGE,BGT,BNE,
// and other bcx instructions.
reloc_pcrel_bcx,
// reloc_absolute_high - Absolute relocation, for the loadhi instruction
// (which is really addis). Add the high 16-bits of the specified global
// address into the low 16-bits of the instruction.
reloc_absolute_high,
// reloc_absolute_low - Absolute relocation, for the la instruction (which
// is really an addi). Add the low 16-bits of the specified global
// address into the low 16-bits of the instruction.
reloc_absolute_low,
// reloc_absolute_low_ix - Absolute relocation for the 64-bit load/store
// instruction which have two implicit zero bits.
reloc_absolute_low_ix
};
}
}
#endif