Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugCrossExSubsection.h b/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugCrossExSubsection.h
new file mode 100644
index 0000000..2f9e981
--- /dev/null
+++ b/linux-x64/clang/include/llvm/DebugInfo/CodeView/DebugCrossExSubsection.h
@@ -0,0 +1,68 @@
+//===- DebugCrossExSubsection.h ---------------------------------*- 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_DEBUGCROSSEXSUBSECTION_H
+#define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
+
+#include "llvm/DebugInfo/CodeView/CodeView.h"
+#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
+#include "llvm/Support/BinaryStreamArray.h"
+#include "llvm/Support/BinaryStreamReader.h"
+#include "llvm/Support/BinaryStreamRef.h"
+#include "llvm/Support/Error.h"
+#include <cstdint>
+#include <map>
+
+namespace llvm {
+namespace codeview {
+
+class DebugCrossModuleExportsSubsectionRef final : public DebugSubsectionRef {
+ using ReferenceArray = FixedStreamArray<CrossModuleExport>;
+ using Iterator = ReferenceArray::Iterator;
+
+public:
+ DebugCrossModuleExportsSubsectionRef()
+ : DebugSubsectionRef(DebugSubsectionKind::CrossScopeExports) {}
+
+ static bool classof(const DebugSubsectionRef *S) {
+ return S->kind() == DebugSubsectionKind::CrossScopeExports;
+ }
+
+ Error initialize(BinaryStreamReader Reader);
+ Error initialize(BinaryStreamRef Stream);
+
+ Iterator begin() const { return References.begin(); }
+ Iterator end() const { return References.end(); }
+
+private:
+ FixedStreamArray<CrossModuleExport> References;
+};
+
+class DebugCrossModuleExportsSubsection final : public DebugSubsection {
+public:
+ DebugCrossModuleExportsSubsection()
+ : DebugSubsection(DebugSubsectionKind::CrossScopeExports) {}
+
+ static bool classof(const DebugSubsection *S) {
+ return S->kind() == DebugSubsectionKind::CrossScopeExports;
+ }
+
+ void addMapping(uint32_t Local, uint32_t Global);
+
+ uint32_t calculateSerializedSize() const override;
+ Error commit(BinaryStreamWriter &Writer) const override;
+
+private:
+ std::map<uint32_t, uint32_t> Mappings;
+};
+
+} // end namespace codeview
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H