SparcTargetObjectFile.cpp revision 263763 
1//===------- SparcTargetObjectFile.cpp - Sparc 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 "SparcTargetObjectFile.h"
11#include "MCTargetDesc/SparcMCExpr.h"
12#include "llvm/CodeGen/MachineModuleInfoImpls.h"
13#include "llvm/Support/Dwarf.h"
14#include "llvm/Target/Mangler.h"
15
16using namespace llvm;
17
18
19const MCExpr *SparcELFTargetObjectFile::
20getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang,
21                        MachineModuleInfo *MMI, unsigned Encoding,
22                        MCStreamer &Streamer) const {
23
24  if (Encoding & dwarf::DW_EH_PE_pcrel) {
25    MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
26
27    //MCSymbol *SSym = getSymbolWithGlobalValueBase(*Mang, GV, ".DW.stub");
28    SmallString<60> NameStr;
29    Mang->getNameWithPrefix(NameStr, GV, true);
30    NameStr.append(".DW.stub");
31    MCSymbol *SSym = getContext().GetOrCreateSymbol(NameStr.str());
32
33    // Add information about the stub reference to ELFMMI so that the stub
34    // gets emitted by the asmprinter.
35    MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
36    if (StubSym.getPointer() == 0) {
37      MCSymbol *Sym = getSymbol(*Mang, GV);
38      StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
39    }
40
41    MCContext &Ctx = getContext();
42    return SparcMCExpr::Create(SparcMCExpr::VK_Sparc_R_DISP32,
43                               MCSymbolRefExpr::Create(SSym, Ctx), Ctx);
44  }
45
46  return TargetLoweringObjectFileELF::
47    getTTypeGlobalReference(GV, Mang, MMI, Encoding, Streamer);
48}
49