Hookup ELF support for X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111173 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 14 insertions, 6 deletions

diff --git a/lib/Target/X86/X86AsmBackend.cpp b/lib/Target/X86/X86AsmBackend.cpp
index 248eeac7ff..6455a18a3f 100644
--- a/lib/Target/X86/X86AsmBackend.cpp
+++ b/lib/Target/X86/X86AsmBackend.cpp
@@ -11,6 +11,7 @@
 #include "X86.h"
 #include "X86FixupKinds.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/MC/ELFObjectWriter.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCObjectWriter.h"
@@ -191,10 +192,6 @@ public:
     HasScatteredSymbols = true;
   }
 
-  MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return 0;
-  }
-
   bool isVirtualSection(const MCSection &Section) const {
     const MCSectionELF &SE = static_cast<const MCSectionELF&>(Section);
     return SE.getType() == MCSectionELF::SHT_NOBITS;;
@@ -205,12 +202,24 @@ class ELFX86_32AsmBackend : public ELFX86AsmBackend {
 public:
   ELFX86_32AsmBackend(const Target &T)
     : ELFX86AsmBackend(T) {}
+
+  MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
+    return new ELFObjectWriter(OS, /*Is64Bit=*/false,
+                               /*IsLittleEndian=*/true,
+                               /*HasRelocationAddend=*/false);
+  }
 };
 
 class ELFX86_64AsmBackend : public ELFX86AsmBackend {
 public:
   ELFX86_64AsmBackend(const Target &T)
     : ELFX86AsmBackend(T) {}
+
+  MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
+    return new ELFObjectWriter(OS, /*Is64Bit=*/true,
+                               /*IsLittleEndian=*/true,
+                               /*HasRelocationAddend=*/true);
+  }
 };
 
 class WindowsX86AsmBackend : public X86AsmBackend {
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 560f070abd..3c8e7f1d33 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -54,8 +54,7 @@ static MCStreamer *createMCStreamer(const Target &T, const std::string &TT,
   case Triple::Win32:
     return createWinCOFFStreamer(Ctx, TAB, *_Emitter, _OS, RelaxAll);
   default:
-    // FIXME: default to ELF.
-    report_fatal_error("object emission not implemented for this target.");
+    return createELFStreamer(Ctx, TAB, _OS, _Emitter, RelaxAll);
   }
 }