1 files changed, 124 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCDisassembler/Disassembler.h b/llvm/lib/MC/MCDisassembler/Disassembler.h
new file mode 100644
index 000000000000..e5aab53a7613
--- /dev/null
+++ b/llvm/lib/MC/MCDisassembler/Disassembler.h
@@ -0,0 +1,124 @@
+//===------------- Disassembler.h - LLVM Disassembler -----------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the interface for the Disassembly library's disassembler
+// context.  The disassembler is responsible for producing strings for
+// individual instructions according to a given architecture and disassembly
+// syntax.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_MC_MCDISASSEMBLER_DISASSEMBLER_H
+#define LLVM_LIB_MC_MCDISASSEMBLER_DISASSEMBLER_H
+
+#include "llvm-c/Disassembler.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCDisassembler/MCDisassembler.h"
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
+#include <utility>
+
+namespace llvm {
+class Target;
+
+//
+// This is the disassembler context returned by LLVMCreateDisasm().
+//
+class LLVMDisasmContext {
+private:
+  //
+  // The passed parameters when the disassembler context is created.
+  //
+  // The TripleName for this disassembler.
+  std::string TripleName;
+  // The pointer to the caller's block of symbolic information.
+  void *DisInfo;
+  // The Triple specific symbolic information type returned by GetOpInfo.
+  int TagType;
+  // The function to get the symbolic information for operands.
+  LLVMOpInfoCallback GetOpInfo;
+  // The function to look up a symbol name.
+  LLVMSymbolLookupCallback SymbolLookUp;
+  //
+  // The objects created and saved by LLVMCreateDisasm() then used by
+  // LLVMDisasmInstruction().
+  //
+  // The LLVM target corresponding to the disassembler.
+  // FIXME: using std::unique_ptr<const llvm::Target> causes a malloc error
+  //        when this LLVMDisasmContext is deleted.
+  const Target *TheTarget;
+  // The assembly information for the target architecture.
+  std::unique_ptr<const llvm::MCAsmInfo> MAI;
+  // The register information for the target architecture.
+  std::unique_ptr<const llvm::MCRegisterInfo> MRI;
+  // The subtarget information for the target architecture.
+  std::unique_ptr<const llvm::MCSubtargetInfo> MSI;
+  // The instruction information for the target architecture.
+  std::unique_ptr<const llvm::MCInstrInfo> MII;
+  // The assembly context for creating symbols and MCExprs.
+  std::unique_ptr<const llvm::MCContext> Ctx;
+  // The disassembler for the target architecture.
+  std::unique_ptr<const llvm::MCDisassembler> DisAsm;
+  // The instruction printer for the target architecture.
+  std::unique_ptr<llvm::MCInstPrinter> IP;
+  // The options used to set up the disassembler.
+  uint64_t Options;
+  // The CPU string.
+  std::string CPU;
+
+public:
+  // Comment stream and backing vector.
+  SmallString<128> CommentsToEmit;
+  raw_svector_ostream CommentStream;
+
+  LLVMDisasmContext(std::string TripleName, void *DisInfo, int TagType,
+                    LLVMOpInfoCallback GetOpInfo,
+                    LLVMSymbolLookupCallback SymbolLookUp,
+                    const Target *TheTarget,
+                    std::unique_ptr<const MCAsmInfo> &&MAI,
+                    std::unique_ptr<const MCRegisterInfo> &&MRI,
+                    std::unique_ptr<const MCSubtargetInfo> &&MSI,
+                    std::unique_ptr<const MCInstrInfo> &&MII,
+                    std::unique_ptr<const llvm::MCContext> &&Ctx,
+                    std::unique_ptr<const MCDisassembler> &&DisAsm,
+                    std::unique_ptr<MCInstPrinter> &&IP)
+      : TripleName(std::move(TripleName)), DisInfo(DisInfo), TagType(TagType),
+        GetOpInfo(GetOpInfo), SymbolLookUp(SymbolLookUp), TheTarget(TheTarget),
+        MAI(std::move(MAI)), MRI(std::move(MRI)), MSI(std::move(MSI)),
+        MII(std::move(MII)), Ctx(std::move(Ctx)), DisAsm(std::move(DisAsm)),
+        IP(std::move(IP)), Options(0), CommentStream(CommentsToEmit) {}
+  const std::string &getTripleName() const { return TripleName; }
+  void *getDisInfo() const { return DisInfo; }
+  int getTagType() const { return TagType; }
+  LLVMOpInfoCallback getGetOpInfo() const { return GetOpInfo; }
+  LLVMSymbolLookupCallback getSymbolLookupCallback() const {
+    return SymbolLookUp;
+  }
+  const Target *getTarget() const { return TheTarget; }
+  const MCDisassembler *getDisAsm() const { return DisAsm.get(); }
+  const MCAsmInfo *getAsmInfo() const { return MAI.get(); }
+  const MCInstrInfo *getInstrInfo() const { return MII.get(); }
+  const MCRegisterInfo *getRegisterInfo() const { return MRI.get(); }
+  const MCSubtargetInfo *getSubtargetInfo() const { return MSI.get(); }
+  MCInstPrinter *getIP() { return IP.get(); }
+  void setIP(MCInstPrinter *NewIP) { IP.reset(NewIP); }
+  uint64_t getOptions() const { return Options; }
+  void addOptions(uint64_t Options) { this->Options |= Options; }
+  StringRef getCPU() const { return CPU; }
+  void setCPU(const char *CPU) { this->CPU = CPU; }
+};
+
+} // namespace llvm
+
+#endif