Some first rudimentary support for ARM EHABI: print exception table in "text mode".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127099 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMMCAsmInfo.cpp b/lib/Target/ARM/ARMMCAsmInfo.cpp
index 53edfca..9ce9a45 100644
--- a/lib/Target/ARM/ARMMCAsmInfo.cpp
+++ b/lib/Target/ARM/ARMMCAsmInfo.cpp
@@ -12,8 +12,16 @@
 //===----------------------------------------------------------------------===//
 
 #include "ARMMCAsmInfo.h"
+#include "llvm/Support/CommandLine.h"
+
 using namespace llvm;
 
+static cl::opt<bool>
+EnableARMEHABI("arm-enable-ehabi", cl::Hidden,
+  cl::desc("Generate ARM EHABI tables"),
+  cl::init(false));
+
+
 static const char *const arm_asm_table[] = {
   "{r0}", "r0",
   "{r1}", "r1",
@@ -65,4 +73,8 @@
   DwarfRequiresFrameSection = false;
 
   SupportsDebugInformation = true;
+
+  // Exceptions handling
+  if (EnableARMEHABI)
+    ExceptionsType = ExceptionHandling::ARM;
 }