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https://github.com/Gericom/teak-llvm.git
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daeafb4c2a
r201608 made llvm corretly handle private globals with MachO. r201622 fixed a bug in it and r201624 and r201625 were changes for using private linkage, assuming that llvm would do the right thing. They all got reverted because r201608 introduced a crash in LTO. This patch includes a fix for that. The issue was that TargetLoweringObjectFile now has to be initialized before we can mangle names of private globals. This is trivially true during the normal codegen pipeline (the asm printer does it), but LTO has to do it manually. llvm-svn: 201700
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
//===-- llvm/Target/ARMTargetObjectFile.cpp - ARM Object Info Impl --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "ARMTargetObjectFile.h"
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#include "ARMSubtarget.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/IR/Mangler.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCSectionELF.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/ELF.h"
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#include "llvm/Target/TargetLowering.h"
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using namespace llvm;
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using namespace dwarf;
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//===----------------------------------------------------------------------===//
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// ELF Target
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//===----------------------------------------------------------------------===//
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void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
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const TargetMachine &TM) {
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bool isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI();
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TargetLoweringObjectFileELF::Initialize(Ctx, TM);
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InitializeELF(isAAPCS_ABI);
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if (isAAPCS_ABI) {
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LSDASection = NULL;
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}
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AttributesSection =
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getContext().getELFSection(".ARM.attributes",
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ELF::SHT_ARM_ATTRIBUTES,
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0,
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SectionKind::getMetadata());
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}
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const MCExpr *ARMElfTargetObjectFile::getTTypeGlobalReference(
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const GlobalValue *GV, unsigned Encoding, Mangler &Mang,
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const TargetMachine &TM, MachineModuleInfo *MMI,
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MCStreamer &Streamer) const {
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assert(Encoding == DW_EH_PE_absptr && "Can handle absptr encoding only");
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return MCSymbolRefExpr::Create(TM.getTargetLowering()->getSymbol(GV, Mang),
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MCSymbolRefExpr::VK_ARM_TARGET2, getContext());
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}
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const MCExpr *ARMElfTargetObjectFile::
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getDebugThreadLocalSymbol(const MCSymbol *Sym) const {
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return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_ARM_TLSLDO,
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getContext());
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}
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