Parsing and plumbing for .cfi_sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index fa245b1..06db000 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -20,7 +20,8 @@
 #include <cstdlib>
 using namespace llvm;
 
-MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx) {
+MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), EmitEHFrame(true),
+                                         EmitDebugFrame(false) {
   const MCSection *section = NULL;
   SectionStack.push_back(std::make_pair(section, section));
 }
@@ -176,6 +177,11 @@
     LastNonPrivate = Symbol;
 }
 
+void MCStreamer::EmitCFISections(bool EH, bool Debug) {
+  EmitEHFrame = EH;
+  EmitDebugFrame = Debug;
+}
+
 void MCStreamer::EmitCFIStartProc() {
   MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
   if (CurFrame && !CurFrame->End)