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

llvm-svn: 127099

2 files changed, 14 insertions, 1 deletions

diff --git a/llvm/lib/Target/ARM/ARMMCAsmInfo.cpp b/llvm/lib/Target/ARM/ARMMCAsmInfo.cpp
index 53edfcad930..9ce9a452d10 100644
--- a/llvm/lib/Target/ARM/ARMMCAsmInfo.cpp
+++ b/llvm/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 @@ ARMELFMCAsmInfo::ARMELFMCAsmInfo() {
   DwarfRequiresFrameSection = false;
 
   SupportsDebugInformation = true;
+
+  // Exceptions handling
+  if (EnableARMEHABI)
+    ExceptionsType = ExceptionHandling::ARM;
 }
diff --git a/llvm/lib/Target/ARM/ARMTargetObjectFile.cpp b/llvm/lib/Target/ARM/ARMTargetObjectFile.cpp
index 7535da54a95..19defa1b519 100644
--- a/llvm/lib/Target/ARM/ARMTargetObjectFile.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetObjectFile.cpp
@@ -36,8 +36,9 @@ void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
                                  ELF::SHF_WRITE |
                                  ELF::SHF_ALLOC,
                                  SectionKind::getDataRel());
+    LSDASection = NULL;
   }
-  
+
   AttributesSection =
     getContext().getELFSection(".ARM.attributes",
                                ELF::SHT_ARM_ATTRIBUTES,