llvm-6502/lib/Target/PowerPC/PPCRelocations.h
2006-07-27 18:21:10 +00:00

67 lines
2.5 KiB
C++

//===- PPCRelocations.h - PPC32 Code Relocations ----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and 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 PPC32RELOCATIONS_H
#define PPC32RELOCATIONS_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_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,
// reloc_absolute_ptr_high - Absolute relocation for references to lazy
// pointer stubs. In this case, the relocated instruction should be
// relocated to point to a POINTER to the indicated global. The low-16
// bits of the instruction are rewritten with the high 16-bits of the
// address of the pointer.
reloc_absolute_ptr_high,
// reloc_absolute_ptr_low - Absolute relocation for references to lazy
// pointer stubs. In this case, the relocated instruction should be
// relocated to point to a POINTER to the indicated global. The low-16
// bits of the instruction are rewritten with the low 16-bits of the
// address of the pointer.
reloc_absolute_ptr_low
};
}
}
#endif