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      1 //===- PPCRelocations.h - PPC32 Code Relocations ----------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file defines the PowerPC 32-bit target-specific relocation types.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef PPC32RELOCATIONS_H
     15 #define PPC32RELOCATIONS_H
     16 
     17 #include "llvm/CodeGen/MachineRelocation.h"
     18 
     19 // Hack to rid us of a PPC pre-processor symbol which is erroneously
     20 // defined in a PowerPC header file (bug in Linux/PPC)
     21 #ifdef PPC
     22 #undef PPC
     23 #endif
     24 
     25 namespace llvm {
     26   namespace PPC {
     27     enum RelocationType {
     28       // reloc_vanilla - A standard relocation, where the address of the
     29       // relocated object completely overwrites the address of the relocation.
     30       reloc_vanilla,
     31 
     32       // reloc_pcrel_bx - PC relative relocation, for the b or bl instructions.
     33       reloc_pcrel_bx,
     34 
     35       // reloc_pcrel_bcx - PC relative relocation, for BLT,BLE,BEQ,BGE,BGT,BNE,
     36       // and other bcx instructions.
     37       reloc_pcrel_bcx,
     38 
     39       // reloc_absolute_high - Absolute relocation, for the loadhi instruction
     40       // (which is really addis).  Add the high 16-bits of the specified global
     41       // address into the low 16-bits of the instruction.
     42       reloc_absolute_high,
     43 
     44       // reloc_absolute_low - Absolute relocation, for the la instruction (which
     45       // is really an addi).  Add the low 16-bits of the specified global
     46       // address into the low 16-bits of the instruction.
     47       reloc_absolute_low,
     48 
     49       // reloc_absolute_low_ix - Absolute relocation for the 64-bit load/store
     50       // instruction which have two implicit zero bits.
     51       reloc_absolute_low_ix
     52     };
     53   }
     54 }
     55 
     56 #endif
     57