d5a100f594
...similar to ca344be7aa "tdf#143450: Fix special
fp+integer struct return case for gcc_*_x86-64"
Change-Id: Ia8110d632a1c5f328822c434efc5b09bd53ec9e8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/119883
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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// This is an implementation of the x86-64 ABI as described in 'System V
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// Application Binary Interface, AMD64 Architecture Processor Supplement'
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// (http://www.x86-64.org/documentation/abi-0.95.pdf)
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#include <typelib/typedescription.hxx>
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namespace x86_64
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{
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/* 6 general purpose registers are used for parameter passing */
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const sal_uInt32 MAX_GPR_REGS = 6;
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/* 8 SSE registers are used for parameter passing */
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const sal_uInt32 MAX_SSE_REGS = 8;
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/* Count number of required registers.
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Examine the argument and return set number of register required in each
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class.
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Return false iff parameter should be passed in memory.
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*/
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bool examine_argument( typelib_TypeDescriptionReference *pTypeRef, int &nUsedGPR, int &nUsedSSE ) noexcept;
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/** Does function that returns this type use a hidden parameter, or registers?
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The value can be returned either in a hidden 1st parameter (which is a
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pointer to a structure allocated by the caller), or in registers (rax, rdx
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for the integers, xmm0, xmm1 for the floating point numbers).
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*/
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bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) noexcept;
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enum class ReturnKind {
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Memory,
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RegistersGeneral,
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RegistersFpInt,
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RegistersIntFp
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};
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ReturnKind getReturnKind(typelib_TypeDescriptionReference * type) noexcept;
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void fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64* pGPR, const double* pSSE, void *pStruct ) noexcept;
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} // namespace x86_64
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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