Reapply: [llvm-objcopy] [COFF] Implement --add-gnu-debuglink

This was reverted since it broke a couple buildbots. The reason
for the breakage is not yet known, but this time, the test has
got more diagnostics added, to hopefully allow figuring out
what goes wrong.

Differential Revision: https://reviews.llvm.org/D57007

llvm-svn: 351931

1 files changed, 25 insertions, 1 deletions

diff --git a/llvm/tools/llvm-objcopy/COFF/Object.h b/llvm/tools/llvm-objcopy/COFF/Object.h
index 0630f9c5ff8..afa272286ef 100644
--- a/llvm/tools/llvm-objcopy/COFF/Object.h
+++ b/llvm/tools/llvm-objcopy/COFF/Object.h
@@ -35,11 +35,35 @@ struct Relocation {
 
 struct Section {
   object::coff_section Header;
-  ArrayRef<uint8_t> Contents;
   std::vector<Relocation> Relocs;
   StringRef Name;
   ssize_t UniqueId;
   size_t Index;
+
+  ArrayRef<uint8_t> getContents() const {
+    if (!OwnedContents.empty())
+      return OwnedContents;
+    return ContentsRef;
+  }
+
+  void setContentsRef(ArrayRef<uint8_t> Data) {
+    OwnedContents.clear();
+    ContentsRef = Data;
+  }
+
+  void setOwnedContents(std::vector<uint8_t> &&Data) {
+    ContentsRef = ArrayRef<uint8_t>();
+    OwnedContents = std::move(Data);
+  }
+
+  void clearContents() {
+    ContentsRef = ArrayRef<uint8_t>();
+    OwnedContents.clear();
+  }
+
+private:
+  ArrayRef<uint8_t> ContentsRef;
+  std::vector<uint8_t> OwnedContents;
 };
 
 struct Symbol {