/*******************************************************************************
 * Copyright IBM Corp. and others 2000
 *
 * 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
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 *******************************************************************************/

#ifndef ARM_SYSTEMLINKAGE_INCL
#define ARM_SYSTEMLINKAGE_INCL

#include "codegen/Linkage.hpp"

#include "infra/Assert.hpp"

namespace TR {
class AutomaticSymbol;
class CodeGenerator;
class Instruction;
class MemoryReference;
class Node;
class Register;
class RegisterDependencyConditions;
class ResolvedMethodSymbol;
} // namespace TR

namespace TR {

class ARMSystemLinkage : public TR::Linkage {
    static TR::ARMLinkageProperties properties;

public:
    ARMSystemLinkage(TR::CodeGenerator *cg);

    virtual uint32_t getRightToLeft();
    virtual void mapStack(TR::ResolvedMethodSymbol *method);
    virtual void mapSingleAutomatic(TR::AutomaticSymbol *p, uint32_t &stackIndex);
    virtual void initARMRealRegisterLinkage();

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

    virtual TR::ARMLinkageProperties &getProperties();

    virtual void createPrologue(TR::Instruction *cursor);
    virtual void createEpilogue(TR::Instruction *cursor);

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

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

    /**
     * @brief Provides the entry point in a method to use when that method is invoked
     *        from a method compiled with the same linkage.
     *
     * @details
     *    When asked on the method currently being compiled, this API will return 0 if
     *    asked before code memory has been allocated.
     *
     *    The compiled method entry point may be the same as the interpreter entry point.
     *
     * @return The entry point for compiled methods to use; 0 if the entry point is unknown
     */
    virtual intptr_t entryPointFromCompiledMethod();

    /**
     * @brief Provides the entry point in a method to use when that method is invoked
     *        from an interpreter using the same linkage.
     *
     * @details
     *    When asked on the method currently being compiled, this API will return 0 if
     *    asked before code memory has been allocated.
     *
     *    The compiled method entry point may be the same as the interpreter entry point.
     *
     * @return The entry point for interpreted methods to use; 0 if the entry point is unknown
     */
    virtual intptr_t entryPointFromInterpretedMethod();
};

} // namespace TR

#endif
