Reduce the exposure of Triple::OSType in the ELF object writer. This will
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

llvm-svn: 147059
diff --git a/llvm/lib/MC/ELFObjectWriter.cpp b/llvm/lib/MC/ELFObjectWriter.cpp
index fa5321d..5e1b0d0 100644
--- a/llvm/lib/MC/ELFObjectWriter.cpp
+++ b/llvm/lib/MC/ELFObjectWriter.cpp
@@ -93,11 +93,7 @@
 
   Write8(ELF::EV_CURRENT);        // e_ident[EI_VERSION]
   // e_ident[EI_OSABI]
-  switch (TargetObjectWriter->getOSType()) {
-    case Triple::FreeBSD:  Write8(ELF::ELFOSABI_FREEBSD); break;
-    case Triple::Linux:    Write8(ELF::ELFOSABI_LINUX); break;
-    default:               Write8(ELF::ELFOSABI_NONE); break;
-  }
+  Write8(TargetObjectWriter->getOSABI());
   Write8(0);                  // e_ident[EI_ABIVERSION]
 
   WriteZeros(ELF::EI_NIDENT - ELF::EI_PAD);
diff --git a/llvm/lib/MC/MCELFObjectTargetWriter.cpp b/llvm/lib/MC/MCELFObjectTargetWriter.cpp
index 12a02a9..1d5698d 100644
--- a/llvm/lib/MC/MCELFObjectTargetWriter.cpp
+++ b/llvm/lib/MC/MCELFObjectTargetWriter.cpp
@@ -12,10 +12,10 @@
 using namespace llvm;
 
 MCELFObjectTargetWriter::MCELFObjectTargetWriter(bool Is64Bit_,
-                                                 Triple::OSType OSType_,
+                                                 uint8_t OSABI_,
                                                  uint16_t EMachine_,
                                                  bool HasRelocationAddend_)
-  : OSType(OSType_), EMachine(EMachine_),
+  : OSABI(OSABI_), EMachine(EMachine_),
     HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_) {
 }