1 files changed, 118 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86TargetObjectFile.cpp b/contrib/llvm/lib/Target/X86/X86TargetObjectFile.cpp
new file mode 100644
index 0000000..c15dfbb
--- /dev/null
+++ b/contrib/llvm/lib/Target/X86/X86TargetObjectFile.cpp
@@ -0,0 +1,118 @@
+//===-- llvm/Target/X86/X86TargetObjectFile.cpp - X86 Object Info ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86TargetObjectFile.h"
+#include "X86TargetMachine.h"
+#include "llvm/CodeGen/MachineModuleInfoImpls.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/Target/Mangler.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/Dwarf.h"
+using namespace llvm;
+using namespace dwarf;
+
+const MCExpr *X8664_MachoTargetObjectFile::
+getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
+                               MachineModuleInfo *MMI, unsigned Encoding,
+                               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 | DW_EH_PE_pcrel)) {
+    const MCSymbol *Sym = Mang->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::
+    getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
+}
+
+unsigned X8632_ELFTargetObjectFile::getPersonalityEncoding() const {
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+  else
+    return DW_EH_PE_absptr;
+}
+
+unsigned X8632_ELFTargetObjectFile::getLSDAEncoding() const {
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+  else
+    return DW_EH_PE_absptr;
+}
+
+unsigned X8632_ELFTargetObjectFile::getFDEEncoding() const {
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+  else
+    return DW_EH_PE_absptr;
+}
+
+unsigned X8632_ELFTargetObjectFile::getTTypeEncoding() const {
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+  else
+    return DW_EH_PE_absptr;
+}
+
+unsigned X8664_ELFTargetObjectFile::getPersonalityEncoding() const {
+  CodeModel::Model Model = TM.getCodeModel();
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_indirect | DW_EH_PE_pcrel | (Model == CodeModel::Small ||
+                                                 Model == CodeModel::Medium ?
+                                            DW_EH_PE_sdata4 : DW_EH_PE_sdata8);
+
+  if (Model == CodeModel::Small || Model == CodeModel::Medium)
+    return DW_EH_PE_udata4;
+
+  return DW_EH_PE_absptr;
+}
+
+unsigned X8664_ELFTargetObjectFile::getLSDAEncoding() const {
+  CodeModel::Model Model = TM.getCodeModel();
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_pcrel | (Model == CodeModel::Small ?
+                             DW_EH_PE_sdata4 : DW_EH_PE_sdata8);
+
+  if (Model == CodeModel::Small)
+    return DW_EH_PE_udata4;
+
+  return DW_EH_PE_absptr;
+}
+
+unsigned X8664_ELFTargetObjectFile::getFDEEncoding() const {
+  CodeModel::Model Model = TM.getCodeModel();
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_pcrel | (Model == CodeModel::Small ||
+                             Model == CodeModel::Medium ?
+                             DW_EH_PE_sdata4 : DW_EH_PE_sdata8);
+
+  if (Model == CodeModel::Small || Model == CodeModel::Medium)
+    return DW_EH_PE_udata4;
+
+  return DW_EH_PE_absptr;
+}
+
+unsigned X8664_ELFTargetObjectFile::getTTypeEncoding() const {
+  CodeModel::Model Model = TM.getCodeModel();
+  if (TM.getRelocationModel() == Reloc::PIC_)
+    return DW_EH_PE_indirect | DW_EH_PE_pcrel | (Model == CodeModel::Small ||
+                                                 Model == CodeModel::Medium ?
+                                            DW_EH_PE_sdata4 : DW_EH_PE_sdata8);
+
+  if (Model == CodeModel::Small)
+    return DW_EH_PE_udata4;
+
+  return DW_EH_PE_absptr;
+}