Index: lib/Target/Sparc/SparcTargetObjectFile.h
===================================================================
--- lib/Target/Sparc/SparcTargetObjectFile.h
+++ lib/Target/Sparc/SparcTargetObjectFile.h
@@ -23,6 +23,8 @@
     TargetLoweringObjectFileELF()
   {}
 
+  void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
+
   const MCExpr *getTTypeGlobalReference(const GlobalValue *GV,
                                         unsigned Encoding,
                                         const TargetMachine &TM,
Index: lib/Target/Sparc/SparcTargetObjectFile.cpp
===================================================================
--- lib/Target/Sparc/SparcTargetObjectFile.cpp
+++ lib/Target/Sparc/SparcTargetObjectFile.cpp
@@ -15,6 +15,13 @@
 
 using namespace llvm;
 
+void
+SparcELFTargetObjectFile::Initialize(MCContext &Ctx,
+                                     const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
 const MCExpr *SparcELFTargetObjectFile::getTTypeGlobalReference(
     const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,
     MachineModuleInfo *MMI, MCStreamer &Streamer) const {
Index: lib/Target/X86/X86TargetMachine.cpp
===================================================================
--- lib/Target/X86/X86TargetMachine.cpp
+++ lib/Target/X86/X86TargetMachine.cpp
@@ -91,6 +91,8 @@
     return llvm::make_unique<X86FreeBSDTargetObjectFile>();
   if (TT.isOSLinux() || TT.isOSNaCl() || TT.isOSIAMCU())
     return llvm::make_unique<X86LinuxNaClTargetObjectFile>();
+  if (TT.isOSSolaris())
+    return llvm::make_unique<X86SolarisTargetObjectFile>();
   if (TT.isOSFuchsia())
     return llvm::make_unique<X86FuchsiaTargetObjectFile>();
   if (TT.isOSBinFormatELF())
Index: lib/Target/X86/X86TargetObjectFile.h
===================================================================
--- lib/Target/X86/X86TargetObjectFile.h
+++ lib/Target/X86/X86TargetObjectFile.h
@@ -66,6 +66,11 @@
     void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
   };
 
+  /// \brief This implementation is used for Solaris on x86/x86-64.
+  class X86SolarisTargetObjectFile : public X86ELFTargetObjectFile {
+    void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
+  };
+
   /// \brief This implementation is used for Windows targets on x86 and x86-64.
   class X86WindowsTargetObjectFile : public TargetLoweringObjectFileCOFF {
     const MCExpr *
Index: lib/Target/X86/X86TargetObjectFile.cpp
===================================================================
--- lib/Target/X86/X86TargetObjectFile.cpp
+++ lib/Target/X86/X86TargetObjectFile.cpp
@@ -86,6 +86,13 @@
   InitializeELF(TM.Options.UseInitArray);
 }
 
+void
+X86SolarisTargetObjectFile::Initialize(MCContext &Ctx,
+                                       const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
 const MCExpr *X86WindowsTargetObjectFile::lowerRelativeReference(
     const GlobalValue *LHS, const GlobalValue *RHS,
     const TargetMachine &TM) const {