1 //===-- ARMMachORelocationInfo.cpp ----------------------------------------===//
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 #include "MCTargetDesc/ARMMCTargetDesc.h"
11 #include "ARMMCExpr.h"
12 #include "llvm-c/Disassembler.h"
13 #include "llvm/MC/MCContext.h"
14 #include "llvm/MC/MCExpr.h"
15 #include "llvm/MC/MCRelocationInfo.h"
16 
17 using namespace llvm;
18 using namespace object;
19 
20 namespace {
21 class ARMMachORelocationInfo : public MCRelocationInfo {
22 public:
ARMMachORelocationInfo(MCContext & Ctx)23   ARMMachORelocationInfo(MCContext &Ctx) : MCRelocationInfo(Ctx) {}
24 
createExprForCAPIVariantKind(const MCExpr * SubExpr,unsigned VariantKind)25   const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr,
26                                              unsigned VariantKind) override {
27     switch(VariantKind) {
28     case LLVMDisassembler_VariantKind_ARM_HI16:
29       return ARMMCExpr::CreateUpper16(SubExpr, Ctx);
30     case LLVMDisassembler_VariantKind_ARM_LO16:
31       return ARMMCExpr::CreateLower16(SubExpr, Ctx);
32     default:
33       return MCRelocationInfo::createExprForCAPIVariantKind(SubExpr,
34                                                             VariantKind);
35     }
36   }
37 };
38 } // End unnamed namespace
39 
40 /// createARMMachORelocationInfo - Construct an ARM Mach-O RelocationInfo.
createARMMachORelocationInfo(MCContext & Ctx)41 MCRelocationInfo *llvm::createARMMachORelocationInfo(MCContext &Ctx) {
42   return new ARMMachORelocationInfo(Ctx);
43 }
44