Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugStringTableSubsection.h b/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugStringTableSubsection.h
new file mode 100644
index 0000000..bebc960
--- /dev/null
+++ b/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugStringTableSubsection.h
@@ -0,0 +1,97 @@
+//===- DebugStringTableSubsection.h - CodeView String Table -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGSTRINGTABLESUBSECTION_H
+#define LLVM_DEBUGINFO_CODEVIEW_DEBUGSTRINGTABLESUBSECTION_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
+#include "llvm/Support/BinaryStreamRef.h"
+#include "llvm/Support/Error.h"
+#include <cstdint>
+
+namespace llvm {
+
+class BinaryStreamReader;
+
+namespace codeview {
+
+/// Represents a read-only view of a CodeView string table. This is a very
+/// simple flat buffer consisting of null-terminated strings, where strings
+/// are retrieved by their offset in the buffer. DebugStringTableSubsectionRef
+/// does not own the underlying storage for the buffer.
+class DebugStringTableSubsectionRef : public DebugSubsectionRef {
+public:
+ DebugStringTableSubsectionRef();
+
+ static bool classof(const DebugSubsectionRef *S) {
+ return S->kind() == DebugSubsectionKind::StringTable;
+ }
+
+ Error initialize(BinaryStreamRef Contents);
+ Error initialize(BinaryStreamReader &Reader);
+
+ Expected<StringRef> getString(uint32_t Offset) const;
+
+ bool valid() const { return Stream.valid(); }
+
+ BinaryStreamRef getBuffer() const { return Stream; }
+
+private:
+ BinaryStreamRef Stream;
+};
+
+/// Represents a read-write view of a CodeView string table.
+/// DebugStringTableSubsection owns the underlying storage for the table, and is
+/// capable of serializing the string table into a format understood by
+/// DebugStringTableSubsectionRef.
+class DebugStringTableSubsection : public DebugSubsection {
+public:
+ DebugStringTableSubsection();
+
+ static bool classof(const DebugSubsection *S) {
+ return S->kind() == DebugSubsectionKind::StringTable;
+ }
+
+ // If string S does not exist in the string table, insert it.
+ // Returns the ID for S.
+ uint32_t insert(StringRef S);
+
+ // Return the ID for string S. Assumes S exists in the table.
+ uint32_t getIdForString(StringRef S) const;
+
+ StringRef getStringForId(uint32_t Id) const;
+
+ uint32_t calculateSerializedSize() const override;
+ Error commit(BinaryStreamWriter &Writer) const override;
+
+ uint32_t size() const;
+
+ StringMap<uint32_t>::const_iterator begin() const {
+ return StringToId.begin();
+ }
+
+ StringMap<uint32_t>::const_iterator end() const { return StringToId.end(); }
+
+ std::vector<uint32_t> sortedIds() const;
+
+private:
+ DenseMap<uint32_t, StringRef> IdToString;
+ StringMap<uint32_t> StringToId;
+ uint32_t StringSize = 1;
+};
+
+} // end namespace codeview
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGSTRINGTABLESUBSECTION_H