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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _BRIDGES_CPP_UNO_X86_64_ABI_HXX_
#define _BRIDGES_CPP_UNO_X86_64_ABI_HXX_
// This is an implementation of the x86-64 ABI as described in 'System V
// Application Binary Interface, AMD64 Architecture Processor Supplement'
// (http://www.x86-64.org/documentation/abi-0.95.pdf)
#include <typelib/typedescription.hxx>
namespace x86_64
{
/* 6 general purpose registers are used for parameter passing */
const sal_uInt32 MAX_GPR_REGS = 6;
/* 8 SSE registers are used for parameter passing */
const sal_uInt32 MAX_SSE_REGS = 8;
/* Count number of required registers.
Examine the argument and return set number of register required in each
class.
Return false iff parameter should be passed in memory.
*/
bool examine_argument( typelib_TypeDescriptionReference *pTypeRef, bool bInReturn, int &nUsedGPR, int &nUsedSSE ) throw ();
/** Does function that returns this type use a hidden parameter, or registers?
The value can be returned either in a hidden 1st parameter (which is a
pointer to a structure allocated by the caller), or in registers (rax, rdx
for the integers, xmm0, xmm1 for the floating point numbers).
*/
bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) throw ();
void fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64* pGPR, const double* pSSE, void *pStruct ) throw ();
} // namespace x86_64
#endif // _BRIDGES_CPP_UNO_X86_64_ABI_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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