1 files changed, 92 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86TargetObjectFile.cpp b/llvm/lib/Target/X86/X86TargetObjectFile.cpp
new file mode 100644
index 000000000000..44185957686b
--- /dev/null
+++ b/llvm/lib/Target/X86/X86TargetObjectFile.cpp
@@ -0,0 +1,92 @@
+//===-- X86TargetObjectFile.cpp - X86 Object Info -------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86TargetObjectFile.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/BinaryFormat/COFF.h"
+#include "llvm/BinaryFormat/Dwarf.h"
+#include "llvm/CodeGen/TargetLowering.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/IR/Operator.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSectionCOFF.h"
+#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCValue.h"
+
+using namespace llvm;
+using namespace dwarf;
+
+const MCExpr *X86_64MachoTargetObjectFile::getTTypeGlobalReference(
+    const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,
+    MachineModuleInfo *MMI, MCStreamer &Streamer) const {
+
+  // On Darwin/X86-64, we can reference dwarf symbols with foo@GOTPCREL+4, which
+  // is an indirect pc-relative reference.
+  if ((Encoding & DW_EH_PE_indirect) && (Encoding & DW_EH_PE_pcrel)) {
+    const MCSymbol *Sym = TM.getSymbol(GV);
+    const MCExpr *Res =
+      MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext());
+    const MCExpr *Four = MCConstantExpr::create(4, getContext());
+    return MCBinaryExpr::createAdd(Res, Four, getContext());
+  }
+
+  return TargetLoweringObjectFileMachO::getTTypeGlobalReference(
+      GV, Encoding, TM, MMI, Streamer);
+}
+
+MCSymbol *X86_64MachoTargetObjectFile::getCFIPersonalitySymbol(
+    const GlobalValue *GV, const TargetMachine &TM,
+    MachineModuleInfo *MMI) const {
+  return TM.getSymbol(GV);
+}
+
+const MCExpr *X86_64MachoTargetObjectFile::getIndirectSymViaGOTPCRel(
+    const GlobalValue *GV, const MCSymbol *Sym, const MCValue &MV,
+    int64_t Offset, MachineModuleInfo *MMI, MCStreamer &Streamer) const {
+  // On Darwin/X86-64, we need to use foo@GOTPCREL+4 to access the got entry
+  // from a data section. In case there's an additional offset, then use
+  // foo@GOTPCREL+4+<offset>.
+  unsigned FinalOff = Offset+MV.getConstant()+4;
+  const MCExpr *Res =
+    MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext());
+  const MCExpr *Off = MCConstantExpr::create(FinalOff, getContext());
+  return MCBinaryExpr::createAdd(Res, Off, getContext());
+}
+
+const MCExpr *X86ELFTargetObjectFile::getDebugThreadLocalSymbol(
+    const MCSymbol *Sym) const {
+  return MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext());
+}
+
+void
+X86FreeBSDTargetObjectFile::Initialize(MCContext &Ctx,
+                                       const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
+void
+X86FuchsiaTargetObjectFile::Initialize(MCContext &Ctx,
+                                       const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
+void
+X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx,
+                                         const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
+void X86SolarisTargetObjectFile::Initialize(MCContext &Ctx,
+                                            const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}