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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