ARMJNILinkage.hpp

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 * Copyright (c) 2016, 2021 IBM Corp. and others
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
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 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
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#ifndef ARM_JNILINKAGE_INCL
#define ARM_JNILINKAGE_INCL

#include "codegen/ARMPrivateLinkage.hpp"

#include <stdint.h>
#include "codegen/Linkage.hpp"
#include "infra/Assert.hpp"

namespace TR { class ARMMemoryArgument; }
namespace TR { class MemoryReference; }
namespace TR { class Node; }
namespace TR { class Register; }
namespace TR { class RegisterDependencyConditions; }

namespace J9
{

namespace ARM
{

class JNILinkage : public PrivateLinkage
   {
   public:

   JNILinkage(TR::CodeGenerator *codeGen);

   virtual TR::MemoryReference *getOutgoingArgumentMemRef(int32_t               totalParmAreaSize,
                                                            int32_t               argOffset,
                                                            TR::Register          *argReg,
                                                            TR::InstOpCode::Mnemonic         opCode,
                                                            TR::ARMMemoryArgument &memArg);

   virtual TR::ARMLinkageProperties& getProperties();
#if defined(__VFP_FP__) && !defined(__SOFTFP__)
   TR::Register *pushFloatArgForJNI(TR::Node *child);
   TR::Register *pushDoubleArgForJNI(TR::Node *child);
#endif

   virtual int32_t buildJNIArgs(TR::Node *callNode,
                             TR::RegisterDependencyConditions *dependencies,
                             TR::Register* &vftReg,
                             bool passReceiver = true,
                             bool passEnvArg = true);

   virtual int32_t buildArgs(TR::Node                            *callNode,
                             TR::RegisterDependencyConditions *dependencies,
                             TR::Register* &vftReg,
                             bool                                isVirtual);

   virtual void buildVirtualDispatch(TR::Node *callNode,
                        TR::RegisterDependencyConditions *dependencies,
                        TR::RegisterDependencyConditions *postDeps,
                        TR::Register                     *vftReg,
                        uint32_t                         sizeOfArguments);

   virtual TR::Register *buildDirectDispatch(TR::Node *callNode);
   virtual TR::Register *buildIndirectDispatch(TR::Node *callNode);

private:
   TR::ARMLinkageProperties _properties;
   };

}

}

#endif