Suzero. X8664. NaCl Sandboxing.

src/IceTargetLoweringX8664.h

 //===- subzero/src/IceTargetLoweringX8664.h - lowering for x86-64 -*- C++ -*-=//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 27 matching lines @@
                      const InstJumpTable *JumpTable) const override;
 
 public:
   ~TargetX8664() = default;
 
   static std::unique_ptr<::Ice::TargetLowering> create(Cfg *Func) {
     return makeUnique<TargetX8664>(Func);
   }
 
   std::unique_ptr<::Ice::Assembler> createAssembler() const override {
-    return makeUnique<X8664::AssemblerX8664>();
+    const bool EmitAddrSizeOverridePrefix = !NeedSandboxing;
+    return makeUnique<X8664::AssemblerX8664>(EmitAddrSizeOverridePrefix);
   }
 
+  bool needSandboxing() const { return NeedSandboxing; }
+
 protected:
+  void _add_sp(Operand *Adjustment);
+  void _mov_sp(Operand *NewValue);
+  void _push_rbp();
+  Traits::X86OperandMem *_sandbox_mem_reference(X86OperandMem *Mem);
+  void _sub_sp(Operand *Adjustment);
+
+  void initSandbox();
+  void lowerIndirectJump(Variable *JumpTarget);
   void lowerCall(const InstCall *Instr) override;
   void lowerArguments() override;
   void lowerRet(const InstRet *Inst) override;
   void addProlog(CfgNode *Node) override;
   void addEpilog(CfgNode *Node) override;
 
 private:
   ENABLE_MAKE_UNIQUE;
   friend class X8664::TargetX86Base<X8664::Traits>;
 
@@ skipping 48 matching lines @@
 private:
   ENABLE_MAKE_UNIQUE;
 
   explicit TargetHeaderX8664(GlobalContext *Ctx) : TargetHeaderLowering(Ctx) {}
 };
 
 } // end of namespace X8664
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8664_H