[dsymutil] Upstream unobfuscation logic.

The unobufscation support for BCSymbolMaps was the last piece of code
that hasn't been upstreamed yet. This patch contains a reworked version
of the existing code and relevant tests.

Differential revision: https://reviews.llvm.org/D56346

llvm-svn: 350580

1 files changed, 9 insertions, 3 deletions

diff --git a/llvm/tools/dsymutil/DebugMap.h b/llvm/tools/dsymutil/DebugMap.h
index c9883773d3d..d8de37e33d5 100644
--- a/llvm/tools/dsymutil/DebugMap.h
+++ b/llvm/tools/dsymutil/DebugMap.h
@@ -75,7 +75,7 @@ class DebugMapObject;
 class DebugMap {
   Triple BinaryTriple;
   std::string BinaryPath;
-
+  std::vector<uint8_t> BinaryUUID;
   using ObjectContainer = std::vector<std::unique_ptr<DebugMapObject>>;
 
   ObjectContainer Objects;
@@ -89,8 +89,10 @@ class DebugMap {
   ///@}
 
 public:
-  DebugMap(const Triple &BinaryTriple, StringRef BinaryPath)
-      : BinaryTriple(BinaryTriple), BinaryPath(BinaryPath) {}
+  DebugMap(const Triple &BinaryTriple, StringRef BinaryPath,
+           ArrayRef<uint8_t> BinaryUUID = ArrayRef<uint8_t>())
+      : BinaryTriple(BinaryTriple), BinaryPath(BinaryPath),
+        BinaryUUID(BinaryUUID.begin(), BinaryUUID.end()) {}
 
   using const_iterator = ObjectContainer::const_iterator;
 
@@ -113,6 +115,10 @@ public:
 
   const Triple &getTriple() const { return BinaryTriple; }
 
+  const ArrayRef<uint8_t> getUUID() const {
+    return ArrayRef<uint8_t>(BinaryUUID);
+  }
+
   StringRef getBinaryPath() const { return BinaryPath; }
 
   void print(raw_ostream &OS) const;