1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFRelocMap.h b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFRelocMap.h
new file mode 100644
index 000000000..3add71194
--- /dev/null
+++ b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFRelocMap.h
@@ -0,0 +1,38 @@
+//===- DWARFRelocMap.h ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H
+#define LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/Object/RelocationResolver.h"
+#include <cstdint>
+
+namespace llvm {
+
+/// RelocAddrEntry contains relocated value and section index.
+/// Section index is -1LL if relocation points to absolute symbol.
+struct RelocAddrEntry {
+  uint64_t SectionIndex;
+  object::RelocationRef Reloc;
+  uint64_t SymbolValue;
+  Optional<object::RelocationRef> Reloc2;
+  uint64_t SymbolValue2;
+  object::RelocationResolver Resolver;
+};
+
+/// In place of applying the relocations to the data we've read from disk we use
+/// a separate mapping table to the side and checking that at locations in the
+/// dwarf where we expect relocated values. This adds a bit of complexity to the
+/// dwarf parsing/extraction at the benefit of not allocating memory for the
+/// entire size of the debug info sections.
+using RelocAddrMap = DenseMap<uint64_t, RelocAddrEntry>;
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H