[DebugInfo] Dump CIE augmentation data as a list of hex bytes

CIE augmentation data might contain non-printable characters.
The patch prints the data as a list of hex bytes.

Differential Revision: http://reviews.llvm.org/D17759

llvm-svn: 262361

1 files changed, 7 insertions, 2 deletions

diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
index 6d59a8e1d24..3d2b9e9a05e 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
@@ -12,6 +12,7 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/Optional.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/Dwarf.h"
@@ -244,8 +245,12 @@ public:
                  (int32_t)DataAlignmentFactor);
     OS << format("  Return address column: %d\n",
                  (int32_t)ReturnAddressRegister);
-    if (!AugmentationData.empty())
-      OS << "  Augmentation data:     " << AugmentationData << "\n";
+    if (!AugmentationData.empty()) {
+      OS << "  Augmentation data:    ";
+      for (uint8_t Byte : AugmentationData)
+        OS << ' ' << hexdigit(Byte >> 4) << hexdigit(Byte & 0xf);
+      OS << "\n";
+    }
     OS << "\n";
   }