Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/MC/MCDisassembler/MCExternalSymbolizer.h b/linux-x64/clang/include/llvm/MC/MCDisassembler/MCExternalSymbolizer.h
new file mode 100644
index 0000000..bd3e5d4
--- /dev/null
+++ b/linux-x64/clang/include/llvm/MC/MCDisassembler/MCExternalSymbolizer.h
@@ -0,0 +1,58 @@
+//===-- llvm/MC/MCExternalSymbolizer.h - ------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the declaration of the MCExternalSymbolizer class, which
+// enables library users to provide callbacks (through the C API) to do the
+// symbolization externally.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCDISASSEMBLER_MCEXTERNALSYMBOLIZER_H
+#define LLVM_MC_MCDISASSEMBLER_MCEXTERNALSYMBOLIZER_H
+
+#include "llvm-c/Disassembler.h"
+#include "llvm/MC/MCDisassembler/MCSymbolizer.h"
+#include <memory>
+
+namespace llvm {
+
+/// \brief Symbolize using user-provided, C API, callbacks.
+///
+/// See llvm-c/Disassembler.h.
+class MCExternalSymbolizer : public MCSymbolizer {
+protected:
+ /// \name Hooks for symbolic disassembly via the public 'C' interface.
+ /// @{
+ /// The function to get the symbolic information for operands.
+ LLVMOpInfoCallback GetOpInfo;
+ /// The function to lookup a symbol name.
+ LLVMSymbolLookupCallback SymbolLookUp;
+ /// The pointer to the block of symbolic information for above call back.
+ void *DisInfo;
+ /// @}
+
+public:
+ MCExternalSymbolizer(MCContext &Ctx,
+ std::unique_ptr<MCRelocationInfo> RelInfo,
+ LLVMOpInfoCallback getOpInfo,
+ LLVMSymbolLookupCallback symbolLookUp, void *disInfo)
+ : MCSymbolizer(Ctx, std::move(RelInfo)), GetOpInfo(getOpInfo),
+ SymbolLookUp(symbolLookUp), DisInfo(disInfo) {}
+
+ bool tryAddingSymbolicOperand(MCInst &MI, raw_ostream &CommentStream,
+ int64_t Value, uint64_t Address, bool IsBranch,
+ uint64_t Offset, uint64_t InstSize) override;
+ void tryAddingPcLoadReferenceComment(raw_ostream &CommentStream,
+ int64_t Value,
+ uint64_t Address) override;
+};
+
+}
+
+#endif