1 //===-- llvm/Target/ARMTargetObjectFile.cpp - ARM Object Info Impl --------===//
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 "ARMTargetObjectFile.h"
11 #include "ARMSubtarget.h"
12 #include "llvm/ADT/StringExtras.h"
13 #include "llvm/MC/MCContext.h"
14 #include "llvm/MC/MCExpr.h"
15 #include "llvm/MC/MCSectionELF.h"
16 #include "llvm/Support/Dwarf.h"
17 #include "llvm/Support/ELF.h"
18 #include "llvm/Target/Mangler.h"
19 #include "llvm/Target/TargetMachine.h"
20 using namespace llvm;
21 using namespace dwarf;
22
23 //===----------------------------------------------------------------------===//
24 // ELF Target
25 //===----------------------------------------------------------------------===//
26
Initialize(MCContext & Ctx,const TargetMachine & TM)27 void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
28 const TargetMachine &TM) {
29 bool isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI();
30 TargetLoweringObjectFileELF::Initialize(Ctx, TM);
31 InitializeELF(isAAPCS_ABI);
32
33 if (isAAPCS_ABI) {
34 LSDASection = NULL;
35 }
36
37 AttributesSection =
38 getContext().getELFSection(".ARM.attributes",
39 ELF::SHT_ARM_ATTRIBUTES,
40 0,
41 SectionKind::getMetadata());
42 }
43
44 const MCExpr *ARMElfTargetObjectFile::
getTTypeGlobalReference(const GlobalValue * GV,Mangler * Mang,MachineModuleInfo * MMI,unsigned Encoding,MCStreamer & Streamer) const45 getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang,
46 MachineModuleInfo *MMI, unsigned Encoding,
47 MCStreamer &Streamer) const {
48 assert(Encoding == DW_EH_PE_absptr && "Can handle absptr encoding only");
49
50 return MCSymbolRefExpr::Create(Mang->getSymbol(GV),
51 MCSymbolRefExpr::VK_ARM_TARGET2,
52 getContext());
53 }
54